{"id":21404,"date":"2026-01-23T23:30:39","date_gmt":"2026-01-23T15:30:39","guid":{"rendered":"https:\/\/viox.com\/?p=21404"},"modified":"2026-01-23T23:31:41","modified_gmt":"2026-01-23T15:31:41","slug":"mcb-breaking-capacity-6ka-vs-10ka-selection-guide","status":"publish","type":"post","link":"https:\/\/test.viox.com\/fa\/mcb-breaking-capacity-6ka-vs-10ka-selection-guide\/","title":{"rendered":"\u0631\u0627\u0647\u0646\u0645\u0627\u06cc \u0627\u0646\u062a\u062e\u0627\u0628 \u0642\u062f\u0631\u062a \u0642\u0637\u0639 MCB: \u0686\u0647 \u0632\u0645\u0627\u0646\u06cc \u0627\u0632 6kA \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 10kA \u062f\u0631 \u062a\u0627\u0628\u0644\u0648\u0647\u0627\u06cc \u0645\u0633\u06a9\u0648\u0646\u06cc \u0648 \u062a\u062c\u0627\u0631\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645"},"content":{"rendered":"<div class=\"product-intro\">\n<h2>\u0646\u06a9\u0627\u062a \u06a9\u0644\u06cc\u062f\u06cc<\/h2>\n<ul>\n<li><strong>\u0642\u062f\u0631\u062a \u0642\u0637\u0639 (Icn\/Icu) \u0646\u0634\u0627\u0646 \u062f\u0647\u0646\u062f\u0647 \u062d\u062f\u0627\u06a9\u062b\u0631 \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0627\u0633\u062a \u06a9\u0647 \u06cc\u06a9 MCB \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0627 \u062e\u06cc\u0627\u0644 \u0631\u0627\u062d\u062a \u0642\u0637\u0639 \u06a9\u0646\u062f.<\/strong> \u0628\u062f\u0648\u0646 \u0622\u0633\u06cc\u0628 \u06cc\u0627 \u062e\u0631\u0627\u0628\u06cc\u060c \u06a9\u0647 \u0628\u0631 \u062d\u0633\u0628 \u06a9\u06cc\u0644\u0648 \u0622\u0645\u067e\u0631 (kA) \u0627\u0646\u062f\u0627\u0632\u0647 \u06af\u06cc\u0631\u06cc \u0645\u06cc \u0634\u0648\u062f.<\/li>\n<li><strong>MCB \u0647\u0627\u06cc 6kA \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0628\u0631\u0627\u06cc \u062a\u0627\u0633\u06cc\u0633\u0627\u062a \u0645\u0633\u06a9\u0648\u0646\u06cc \u06a9\u0627\u0641\u06cc \u0647\u0633\u062a\u0646\u062f.<\/strong> \u062c\u0627\u06cc\u06cc \u06a9\u0647 \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0645\u0648\u0631\u062f \u0627\u0646\u062a\u0638\u0627\u0631 (PSCC) \u0632\u06cc\u0631 5kA \u0628\u0627\u0642\u06cc \u0645\u06cc \u0645\u0627\u0646\u062f\u060c \u0628\u0647 \u0648\u06cc\u0698\u0647 \u062f\u0631 \u0645\u06a9\u0627\u0646 \u0647\u0627\u06cc \u062f\u0648\u0631 \u0627\u0632 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631\u0647\u0627\u06cc \u062a\u063a\u0630\u06cc\u0647.<\/li>\n<li><strong>MCB \u0647\u0627\u06cc 10kA \u0628\u0631\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u062a\u062c\u0627\u0631\u06cc\u060c \u062a\u0627\u0633\u06cc\u0633\u0627\u062a \u0634\u0647\u0631\u06cc \u0648 \u0645\u06a9\u0627\u0646 \u0647\u0627\u06cc \u0646\u0632\u062f\u06cc\u06a9 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631\u0647\u0627 \u062a\u0648\u0635\u06cc\u0647 \u0645\u06cc \u0634\u0648\u0646\u062f.<\/strong> \u062c\u0627\u06cc\u06cc \u06a9\u0647 \u062c\u0631\u06cc\u0627\u0646 \u0647\u0627\u06cc \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0627\u0632 6kA \u0641\u0631\u0627\u062a\u0631 \u0645\u06cc \u0631\u0648\u062f \u06cc\u0627 \u06af\u0633\u062a\u0631\u0634 \u0622\u06cc\u0646\u062f\u0647 \u067e\u06cc\u0634 \u0628\u06cc\u0646\u06cc \u0645\u06cc \u0634\u0648\u062f.<\/li>\n<li><strong>\u0627\u0646\u062a\u062e\u0627\u0628 \u0645\u0646\u0627\u0633\u0628 \u0645\u0633\u062a\u0644\u0632\u0645 \u0645\u062d\u0627\u0633\u0628\u0647 PSCC \u062f\u0631 \u0646\u0642\u0637\u0647 \u0646\u0635\u0628 \u0627\u0633\u062a.<\/strong> \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0648\u0644\u062a\u0627\u0698 \u0633\u06cc\u0633\u062a\u0645\u060c \u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u06a9\u0644 \u0648 \u0645\u0634\u062e\u0635\u0627\u062a \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631.<\/li>\n<li><strong>IEC 60898-1 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f\u0647\u0627\u06cc MCB \u0645\u0633\u06a9\u0648\u0646\u06cc \u0631\u0627 \u062a\u0639\u06cc\u06cc\u0646 \u0645\u06cc \u06a9\u0646\u062f.<\/strong> \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 IEC 60947-2 \u0628\u0631\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u0635\u0646\u0639\u062a\u06cc \u0627\u0639\u0645\u0627\u0644 \u0645\u06cc \u0634\u0648\u062f\u060c \u0628\u0627 \u0627\u0644\u0632\u0627\u0645\u0627\u062a \u062a\u0633\u062a \u0648 \u0645\u0639\u06cc\u0627\u0631\u0647\u0627\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f \u0645\u062a\u0641\u0627\u0648\u062a.<\/li>\n<li><strong>\u06a9\u0645 \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0646 \u0642\u062f\u0631\u062a \u0642\u0637\u0639\u060c \u062e\u0637\u0631\u0627\u062a \u0627\u06cc\u0645\u0646\u06cc \u062c\u062f\u06cc \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u062f.<\/strong> \u0627\u0632 \u062c\u0645\u0644\u0647 \u062d\u0648\u0627\u062f\u062b \u0642\u0648\u0633 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc\u060c \u0622\u0633\u06cc\u0628 \u0628\u0647 \u062a\u062c\u0647\u06cc\u0632\u0627\u062a \u0648 \u062e\u0637\u0631\u0627\u062a \u0627\u062d\u062a\u0645\u0627\u0644\u06cc \u0622\u062a\u0634 \u0633\u0648\u0632\u06cc.<\/li>\n<li><strong>\u062a\u0641\u0627\u0648\u062a \u0647\u0632\u06cc\u0646\u0647 \u0628\u06cc\u0646 MCB \u0647\u0627\u06cc 6kA \u0648 10kA \u062d\u062f\u0627\u0642\u0644 \u0627\u0633\u062a.<\/strong> \u062f\u0631 \u0645\u0642\u0627\u06cc\u0633\u0647 \u0628\u0627 \u0645\u0632\u0627\u06cc\u0627\u06cc \u0627\u06cc\u0645\u0646\u06cc \u0648 \u0645\u0632\u0627\u06cc\u0627\u06cc \u0627\u0646\u0637\u0628\u0627\u0642 \u0628\u0627 \u06a9\u062f \u0627\u0646\u062a\u062e\u0627\u0628 \u0645\u0646\u0627\u0633\u0628.<\/li>\n<\/ul>\n<h2>\u062f\u0631\u06a9 \u0642\u062f\u0631\u062a \u0642\u0637\u0639 MCB: \u067e\u0627\u06cc\u0647 \u0648 \u0627\u0633\u0627\u0633 \u062d\u0641\u0627\u0638\u062a \u0645\u062f\u0627\u0631<\/h2>\n<p>\u0642\u062f\u0631\u062a \u0642\u0637\u0639\u060c \u06a9\u0647 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0642\u062f\u0631\u062a \u0642\u0637\u0639 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0646\u06cc\u0632 \u0634\u0646\u0627\u062e\u062a\u0647 \u0645\u06cc \u0634\u0648\u062f\u060c \u0646\u0634\u0627\u0646 \u062f\u0647\u0646\u062f\u0647 \u062d\u062f\u0627\u06a9\u062b\u0631 \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0645\u0648\u0631\u062f \u0627\u0646\u062a\u0638\u0627\u0631 \u0627\u0633\u062a \u06a9\u0647 \u06cc\u06a9 <a href=\"https:\/\/test.viox.com\/fa\/what-is-a-miniature-circuit-breaker-mcb\/\">\u06a9\u0644\u06cc\u062f \u0645\u06cc\u0646\u06cc\u0627\u062a\u0648\u0631\u06cc (MCB)<\/a> \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0627 \u062e\u06cc\u0627\u0644 \u0631\u0627\u062d\u062a \u062f\u0631 \u0648\u0644\u062a\u0627\u0698 \u0646\u0627\u0645\u06cc \u062e\u0648\u062f \u0642\u0637\u0639 \u06a9\u0646\u062f. \u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u06cc\u06a9 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0631\u062e \u0645\u06cc \u062f\u0647\u062f\u060c \u062c\u0631\u06cc\u0627\u0646 \u0647\u0627\u06cc \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u062f\u0631 \u0639\u0631\u0636 \u0686\u0646\u062f \u0645\u06cc\u0644\u06cc \u062b\u0627\u0646\u06cc\u0647 \u0628\u0647 \u0635\u062f\u0647\u0627 \u0628\u0631\u0627\u0628\u0631 \u062c\u0631\u06cc\u0627\u0646 \u06a9\u0627\u0631 \u0639\u0627\u062f\u06cc \u0628\u0631\u0633\u0646\u062f. MCB \u0628\u0627\u06cc\u062f \u0627\u06cc\u0646 \u062c\u0631\u06cc\u0627\u0646 \u0631\u0627 \u0642\u0628\u0644 \u0627\u0632 \u0627\u06cc\u0646\u06a9\u0647 \u0628\u0627\u0639\u062b \u0622\u0633\u06cc\u0628 \u0641\u0627\u062c\u0639\u0647 \u0628\u0627\u0631 \u0628\u0647 \u0647\u0627\u062f\u06cc \u0647\u0627\u060c \u062a\u062c\u0647\u06cc\u0632\u0627\u062a \u0634\u0648\u062f \u06cc\u0627 \u062e\u0637\u0631\u0627\u062a \u0622\u062a\u0634 \u0633\u0648\u0632\u06cc \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u062f\u060c \u0642\u0637\u0639 \u06a9\u0646\u062f.<\/p>\n<p>\u0631\u062a\u0628\u0647 \u0628\u0646\u062f\u06cc \u0642\u062f\u0631\u062a \u0642\u0637\u0639 \u0628\u0631 \u0631\u0648\u06cc \u0647\u0631 \u067e\u0644\u0627\u06a9 MCB \u0638\u0627\u0647\u0631 \u0645\u06cc \u0634\u0648\u062f\u060c \u06a9\u0647 \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0628\u0647 \u0635\u0648\u0631\u062a Icn (\u0638\u0631\u0641\u06cc\u062a \u0646\u0627\u0645\u06cc \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0637\u0628\u0642 IEC 60898-1) \u06cc\u0627 Icu (\u0638\u0631\u0641\u06cc\u062a \u0642\u0637\u0639 \u0646\u0647\u0627\u06cc\u06cc \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0637\u0628\u0642 IEC 60947-2) \u0628\u06cc\u0627\u0646 \u0645\u06cc \u0634\u0648\u062f. \u062f\u0631\u06a9 <a href=\"https:\/\/test.viox.com\/fa\/circuit-breaker-ratings-icu-ics-icw-icm\/\">\u0627\u06cc\u0646 \u0631\u062a\u0628\u0647 \u0628\u0646\u062f\u06cc \u0647\u0627<\/a> \u0628\u0631\u0627\u06cc \u0637\u0631\u0627\u062d\u06cc \u0627\u06cc\u0645\u0646 \u0633\u06cc\u0633\u062a\u0645 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0627\u0633\u0627\u0633\u06cc \u0627\u0633\u062a.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Residential-panel-with-6kA-MCBs---professional-product-photography.webp\" alt=\"6kA MCB installed in residential distribution panel showing breaking capacity rating\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">\u0634\u06a9\u0644 1: \u0646\u0645\u0627\u06cc \u0646\u0632\u062f\u06cc\u06a9 \u0627\u0632 \u06cc\u06a9 \u062a\u0627\u0628\u0644\u0648\u06cc \u062a\u0648\u0632\u06cc\u0639 \u0645\u0633\u06a9\u0648\u0646\u06cc \u06a9\u0647 \u062f\u0627\u0631\u0627\u06cc \u0631\u062a\u0628\u0647 6kA \u0627\u0633\u062a. <a href=\"https:\/\/test.viox.com\/fa\/mcb\/\">MCB \u0647\u0627<\/a>, \u060c \u0628\u0631\u062c\u0633\u062a\u0647 \u06a9\u0631\u062f\u0646 \u0633\u0637\u062d \u062d\u0641\u0627\u0638\u062a \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u0628\u0631\u0627\u06cc \u062a\u0627\u0633\u06cc\u0633\u0627\u062a \u062e\u0627\u0646\u06af\u06cc.<\/figcaption><\/figure>\n<h3>\u0686\u0631\u0627 \u0627\u0646\u062a\u062e\u0627\u0628 \u0642\u062f\u0631\u062a \u0642\u0637\u0639 \u0645\u0647\u0645 \u0627\u0633\u062a<\/h3>\n<p>\u0627\u0646\u062a\u062e\u0627\u0628 \u06cc\u06a9 MCB \u0628\u0627 \u0642\u062f\u0631\u062a \u0642\u0637\u0639 \u0646\u0627\u06a9\u0627\u0641\u06cc\u060c \u062d\u0627\u0644\u062a \u0647\u0627\u06cc \u062e\u0631\u0627\u0628\u06cc \u0645\u062a\u0639\u062f\u062f\u06cc \u0631\u0627 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u062f:<\/p>\n<ul>\n<li><strong>\u062c\u0648\u0634 \u062e\u0648\u0631\u062f\u0646 \u06a9\u0646\u062a\u0627\u06a9\u062a<\/strong>: \u062c\u0631\u06cc\u0627\u0646 \u0647\u0627\u06cc \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u06a9\u0647 \u0627\u0632 \u0631\u062a\u0628\u0647 MCB \u0641\u0631\u0627\u062a\u0631 \u0645\u06cc \u0631\u0648\u0646\u062f \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u06a9\u0646\u062a\u0627\u06a9\u062a \u0647\u0627 \u0631\u0627 \u0628\u0647 \u0647\u0645 \u062c\u0648\u0634 \u062f\u0647\u0646\u062f \u0648 \u0627\u0632 \u0642\u0637\u0639 \u0645\u062f\u0627\u0631 \u062a\u0648\u0633\u0637 \u0642\u0637\u0639 \u06a9\u0646\u0646\u062f\u0647 \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u06a9\u0646\u0646\u062f.<\/li>\n<li><strong>\u062e\u0637\u0631\u0627\u062a \u0642\u0648\u0633 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc<\/strong>: \u0642\u062f\u0631\u062a \u0642\u0637\u0639 \u0646\u0627\u06a9\u0627\u0641\u06cc \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0645\u0646\u062c\u0631 \u0628\u0647 \u0627\u06cc\u062c\u0627\u062f \u0642\u0648\u0633 \u0645\u062f\u0627\u0648\u0645 \u0634\u0648\u062f \u0648 \u0634\u0631\u0627\u06cc\u0637 \u062e\u0637\u0631\u0646\u0627\u06a9 \u0642\u0648\u0633 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0631\u0627 \u0627\u06cc\u062c\u0627\u062f \u06a9\u0646\u062f.<\/li>\n<li><strong>\u067e\u0627\u0631\u06af\u06cc \u0645\u062d\u0641\u0638\u0647<\/strong>: \u062c\u0631\u06cc\u0627\u0646 \u0647\u0627\u06cc \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0634\u062f\u06cc\u062f \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u0628\u0627\u0639\u062b \u0622\u0633\u06cc\u0628 \u0641\u06cc\u0632\u06cc\u06a9\u06cc \u0628\u0647 \u0645\u062d\u0641\u0638\u0647 MCB \u0634\u0648\u0646\u062f \u0648 \u06af\u0627\u0632\u0647\u0627\u06cc \u062f\u0627\u063a \u0648 \u0641\u0644\u0632 \u0645\u0630\u0627\u0628 \u0631\u0627 \u0622\u0632\u0627\u062f \u06a9\u0646\u0646\u062f.<\/li>\n<li><strong>\u0622\u0633\u06cc\u0628 \u0628\u0647 \u062a\u062c\u0647\u06cc\u0632\u0627\u062a \u067e\u0627\u06cc\u06cc\u0646 \u062f\u0633\u062a\u06cc<\/strong>: \u062d\u0641\u0627\u0638\u062a \u0646\u0627\u0645\u0648\u0641\u0642 \u0628\u0647 \u062c\u0631\u06cc\u0627\u0646 \u0647\u0627\u06cc \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0627\u062c\u0627\u0632\u0647 \u0645\u06cc \u062f\u0647\u062f \u062a\u0627 \u0628\u0647 \u062a\u062c\u0647\u06cc\u0632\u0627\u062a \u0648 \u0633\u06cc\u0645 \u06a9\u0634\u06cc \u0645\u062a\u0635\u0644 \u0622\u0633\u06cc\u0628 \u0628\u0631\u0633\u0627\u0646\u0646\u062f.<\/li>\n<\/ul>\n<p><strong>\u0642\u0627\u0646\u0648\u0646 \u0627\u06cc\u0645\u0646\u06cc \u062d\u06cc\u0627\u062a\u06cc<\/strong>: \u0642\u062f\u0631\u062a \u0642\u0637\u0639 MCB \u0647\u0645\u06cc\u0634\u0647 \u0628\u0627\u06cc\u062f \u0627\u0632 \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0645\u0648\u0631\u062f \u0627\u0646\u062a\u0638\u0627\u0631 (PSCC) \u062f\u0631 \u0646\u0642\u0637\u0647 \u0646\u0635\u0628 \u0622\u0646\u060c \u0628\u0627 \u062d\u0627\u0634\u06cc\u0647 \u0647\u0627\u06cc \u0627\u06cc\u0645\u0646\u06cc \u0645\u0646\u0627\u0633\u0628\u060c \u0628\u06cc\u0634\u062a\u0631 \u0628\u0627\u0634\u062f.<\/p>\n<h2>6kA \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 10kA: \u0645\u0642\u0627\u06cc\u0633\u0647 \u0645\u0634\u062e\u0635\u0627\u062a \u0641\u0646\u06cc<\/h2>\n<p>\u062c\u062f\u0648\u0644 \u0632\u06cc\u0631 \u0645\u0634\u062e\u0635\u0627\u062a \u06a9\u0644\u06cc\u062f\u06cc \u0648 \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u0639\u0645\u0644\u06a9\u0631\u062f MCB \u0647\u0627\u06cc \u062f\u0627\u0631\u0627\u06cc \u0631\u062a\u0628\u0647 6kA \u0648 10kA \u0631\u0627 \u0645\u0642\u0627\u06cc\u0633\u0647 \u0645\u06cc \u06a9\u0646\u062f:<\/p>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left; margin-bottom: 20px;\" border=\"1\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"padding: 8px;\">\u0645\u0634\u062e\u0635\u0627\u062a<\/th>\n<th style=\"padding: 8px;\">MCB 6kA<\/th>\n<th style=\"padding: 8px;\">MCB 10kA<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u0634\u06a9\u0633\u062a\u0646 \u0638\u0631\u0641\u06cc\u062a (Icn)<\/strong><\/td>\n<td style=\"padding: 8px;\">6000 \u0622\u0645\u067e\u0631<\/td>\n<td style=\"padding: 8px;\">10000 \u0622\u0645\u067e\u0631<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u0645\u0639\u0645\u0648\u0644\u06cc<\/strong><\/td>\n<td style=\"padding: 8px;\">\u0645\u0633\u06a9\u0648\u0646\u06cc\u060c \u062a\u062c\u0627\u0631\u06cc \u0633\u0628\u06a9<\/td>\n<td style=\"padding: 8px;\">\u062a\u062c\u0627\u0631\u06cc\u060c \u0635\u0646\u0639\u062a\u06cc\u060c \u0645\u0633\u06a9\u0648\u0646\u06cc \u0634\u0647\u0631\u06cc<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f IEC<\/strong><\/td>\n<td style=\"padding: 8px;\">IEC 60898-1<\/td>\n<td style=\"padding: 8px;\">IEC 60898-1 \/ IEC 60947-2<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u0641\u0627\u0635\u0644\u0647 \u0627\u0632 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631<\/strong><\/td>\n<td style=\"padding: 8px;\">&gt;50 \u0645\u062a\u0631 \u0645\u0639\u0645\u0648\u0644\u06cc<\/td>\n<td style=\"padding: 8px;\">&lt;50 \u0645\u062a\u0631 \u06cc\u0627 \u0633\u06cc\u0633\u062a\u0645 \u0647\u0627\u06cc \u0628\u0627 \u0638\u0631\u0641\u06cc\u062a \u0628\u0627\u0644\u0627<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u0648\u0644\u062a\u0627\u0698 \u0633\u06cc\u0633\u062a\u0645<\/strong><\/td>\n<td style=\"padding: 8px;\">230 \u0648\u0644\u062a \u062a\u06a9 \u0641\u0627\u0632<\/td>\n<td style=\"padding: 8px;\">230V-400V \u062a\u06a9\/\u0633\u0647 \u0641\u0627\u0632<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u0645\u062d\u062f\u0648\u062f\u06cc\u062a \u0627\u0646\u0631\u0698\u06cc \u0642\u0648\u0633<\/strong><\/td>\n<td style=\"padding: 8px;\">\u06a9\u0644\u0627\u0633 3<\/td>\n<td style=\"padding: 8px;\">\u06a9\u0644\u0627\u0633 3<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u062d\u0642 \u0628\u06cc\u0645\u0647 \u0647\u0632\u06cc\u0646\u0647<\/strong><\/td>\n<td style=\"padding: 8px;\">\u062e\u0637 \u0645\u0628\u0646\u0627<\/td>\n<td style=\"padding: 8px;\">+10-20%<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u0646\u0635\u0628 \u0645\u0639\u0645\u0648\u0644\u06cc<\/strong><\/td>\n<td style=\"padding: 8px;\">\u062a\u0627\u0628\u0644\u0648\u0647\u0627\u06cc \u0641\u0631\u0639\u06cc\u060c \u0645\u062f\u0627\u0631\u0647\u0627\u06cc \u0634\u0627\u062e\u0647<\/td>\n<td style=\"padding: 8px;\">\u062a\u0627\u0628\u0644\u0648\u0647\u0627\u06cc \u0627\u0635\u0644\u06cc\u060c \u0641\u06cc\u062f\u0631\u0647\u0627\u060c \u062a\u0627\u0628\u0644\u0648\u0647\u0627\u06cc \u062a\u062c\u0627\u0631\u06cc<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u062a\u0648\u0635\u06cc\u0647 \u062d\u0627\u0634\u06cc\u0647 \u0627\u06cc\u0645\u0646\u06cc<\/strong><\/td>\n<td style=\"padding: 8px;\">\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062f\u0631 \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 PSCC &lt;5kA \u0628\u0627\u0634\u062f<\/td>\n<td style=\"padding: 8px;\">\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u062f\u0631 \u0632\u0645\u0627\u0646\u06cc \u06a9\u0647 PSCC 5-9kA \u0628\u0627\u0634\u062f<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u0642\u0627\u0628\u0644\u06cc\u062a \u06af\u0633\u062a\u0631\u0634 \u0622\u06cc\u0646\u062f\u0647<\/strong><\/td>\n<td style=\"padding: 8px;\">\u0645\u062d\u062f\u0648\u062f<\/td>\n<td style=\"padding: 8px;\">\u0633\u0627\u0632\u06af\u0627\u0631\u06cc \u0628\u0647\u062a\u0631<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/MCB-internal-mechanism-cutaway-with-labeled-components.webp\" alt=\"MCB internal mechanism cutaway diagram showing thermal and magnetic trip components\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">\u0634\u06a9\u0644 2: \u0645\u06a9\u0627\u0646\u06cc\u0632\u0645 \u062f\u0627\u062e\u0644\u06cc \u06cc\u06a9 MCB\u060c \u0646\u0634\u0627\u0646 \u062f\u0647\u0646\u062f\u0647 \u06a9\u0627\u0646\u0627\u0644 \u0647\u0627\u06cc \u0642\u0648\u0633 \u0648 \u0627\u062c\u0632\u0627\u06cc \u0642\u0637\u0639 \u06a9\u0646\u0646\u062f\u0647 \u06a9\u0647 \u0628\u0631\u0627\u06cc \u0642\u0637\u0639 \u062c\u0631\u06cc\u0627\u0646 \u0647\u0627\u06cc \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0628\u0627\u0644\u0627 \u0636\u0631\u0648\u0631\u06cc \u0647\u0633\u062a\u0646\u062f.<\/figcaption><\/figure>\n<h2>\u0686\u0647 \u0632\u0645\u0627\u0646\u06cc \u0627\u0632 MCB \u0647\u0627\u06cc 6kA \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645: \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u0645\u0633\u06a9\u0648\u0646\u06cc \u0648 \u062a\u062c\u0627\u0631\u06cc \u0633\u0628\u06a9<\/h2>\n<p>MCB \u0647\u0627\u06cc \u0628\u0627 \u0642\u062f\u0631\u062a \u0642\u0637\u0639 6kA \u0627\u0646\u062a\u062e\u0627\u0628 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u0628\u0631\u0627\u06cc \u062a\u0627\u0633\u06cc\u0633\u0627\u062a \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0645\u0633\u06a9\u0648\u0646\u06cc \u0648 \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u062a\u062c\u0627\u0631\u06cc \u0633\u0628\u06a9 \u0647\u0633\u062a\u0646\u062f \u06a9\u0647 \u062f\u0631 \u0622\u0646 \u0633\u0637\u0648\u062d \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u062f\u0631 \u062d\u062f \u0645\u062a\u0648\u0633\u0637 \u0628\u0627\u0642\u06cc \u0645\u06cc \u0645\u0627\u0646\u0646\u062f. \u062f\u0631\u06a9 \u0627\u06cc\u0646\u06a9\u0647 \u0686\u0647 \u0632\u0645\u0627\u0646\u06cc \u062d\u0641\u0627\u0638\u062a 6kA \u06a9\u0627\u0641\u06cc \u0627\u0633\u062a\u060c \u0645\u0633\u062a\u0644\u0632\u0645 \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0686\u0646\u062f\u06cc\u0646 \u0639\u0627\u0645\u0644 \u0633\u06cc\u0633\u062a\u0645 \u0627\u0633\u062a.<\/p>\n<h3>\u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u0627\u06cc\u062f\u0647 \u0622\u0644 \u0628\u0631\u0627\u06cc MCB \u0647\u0627\u06cc 6kA<\/h3>\n<p><strong>\u062a\u0627\u0633\u06cc\u0633\u0627\u062a \u0645\u0633\u06a9\u0648\u0646\u06cc<\/strong>: \u062e\u0627\u0646\u0647 \u0647\u0627\u06cc \u062a\u06a9 \u062e\u0627\u0646\u0648\u0627\u0631\u06cc\u060c \u0622\u067e\u0627\u0631\u062a\u0645\u0627\u0646 \u0647\u0627 \u0648 \u0645\u062c\u062a\u0645\u0639 \u0647\u0627\u06cc \u0645\u0633\u06a9\u0648\u0646\u06cc \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0645\u0642\u0627\u062f\u06cc\u0631 PSCC \u0628\u06cc\u0646 1kA \u0648 4kA \u0631\u0627 \u062a\u062c\u0631\u0628\u0647 \u0645\u06cc \u06a9\u0646\u0646\u062f \u06a9\u0647 \u0628\u0647 \u062e\u0648\u0628\u06cc \u062f\u0631 \u0645\u062d\u062f\u0648\u062f\u0647 \u0642\u062f\u0631\u062a \u0642\u0637\u0639 6kA \u0642\u0631\u0627\u0631 \u062f\u0627\u0631\u062f. \u062a\u0631\u06a9\u06cc\u0628 \u0641\u0627\u0635\u0644\u0647 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631\u060c \u0637\u0648\u0644 \u06a9\u0627\u0628\u0644 \u0648 \u0638\u0631\u0641\u06cc\u062a \u0648\u0631\u0648\u062f\u06cc \u0633\u0631\u0648\u06cc\u0633 \u0645\u062d\u062f\u0648\u062f\u060c \u0628\u0647 \u0637\u0648\u0631 \u0637\u0628\u06cc\u0639\u06cc \u0633\u0637\u0648\u062d \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0631\u0627 \u0645\u062d\u062f\u0648\u062f \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p><strong>\u062a\u0627\u0628\u0644\u0648\u0647\u0627\u06cc \u0641\u0631\u0639\u06cc \u0627\u0632 \u0631\u0627\u0647 \u062f\u0648\u0631<\/strong>: \u062a\u0627\u0628\u0644\u0648\u0647\u0627\u06cc \u062a\u0648\u0632\u06cc\u0639 \u0648\u0627\u0642\u0639 \u062f\u0631 \u0628\u06cc\u0634 \u0627\u0632 50 \u0645\u062a\u0631\u06cc \u0648\u0631\u0648\u062f\u06cc \u0633\u0631\u0648\u06cc\u0633 \u0627\u0635\u0644\u06cc \u0627\u0632 \u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u0637\u0648\u0644\u0627\u0646\u06cc \u06a9\u0627\u0628\u0644 \u0647\u0627 \u0628\u0647\u0631\u0647 \u0645\u06cc \u0628\u0631\u0646\u062f \u06a9\u0647 \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0645\u0648\u062c\u0648\u062f \u0631\u0627 \u06a9\u0627\u0647\u0634 \u0645\u06cc \u062f\u0647\u062f. \u0627\u06cc\u0646 \u0645\u06a9\u0627\u0646 \u0647\u0627 \u0628\u0647 \u0646\u062f\u0631\u062a \u0628\u0647 \u0642\u062f\u0631\u062a \u0642\u0637\u0639 \u0628\u06cc\u0634 \u0627\u0632 6kA \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u0646\u062f.<\/p>\n<p><strong>\u0633\u0627\u062e\u062a\u0645\u0627\u0646 \u0647\u0627\u06cc \u062a\u062c\u0627\u0631\u06cc \u0633\u0628\u06a9<\/strong>: \u0641\u0636\u0627\u0647\u0627\u06cc \u062e\u0631\u062f\u0647 \u0641\u0631\u0648\u0634\u06cc \u06a9\u0648\u0686\u06a9\u060c \u062f\u0641\u0627\u062a\u0631 \u0648 \u062a\u0627\u0633\u06cc\u0633\u0627\u062a \u0645\u0634\u0627\u0628\u0647 \u0628\u0627 \u062e\u062f\u0645\u0627\u062a \u062a\u06a9 \u0641\u0627\u0632 230 \u0648\u0644\u062a \u0648 \u0628\u0627\u0631\u0647\u0627\u06cc \u0645\u062a\u0635\u0644 \u0645\u062d\u062f\u0648\u062f\u060c \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0628\u0627 MCB \u0647\u0627\u06cc 6kA \u0628\u0627 \u062e\u06cc\u0627\u0644 \u0631\u0627\u062d\u062a \u06a9\u0627\u0631 \u0645\u06cc \u06a9\u0646\u0646\u062f\u060c \u0628\u0647 \u0634\u0631\u0637\u06cc \u06a9\u0647 \u0645\u062d\u0627\u0633\u0628\u0627\u062a PSCC \u0645\u0646\u0627\u0633\u0628\u060c \u062d\u0641\u0627\u0638\u062a \u06a9\u0627\u0641\u06cc \u0631\u0627 \u062a\u0623\u06cc\u06cc\u062f \u06a9\u0646\u062f.<\/p>\n<h3>\u0639\u0648\u0627\u0645\u0644\u06cc \u06a9\u0647 \u062c\u0631\u06cc\u0627\u0646 \u0647\u0627\u06cc \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0645\u0633\u06a9\u0648\u0646\u06cc \u0631\u0627 \u0645\u062d\u062f\u0648\u062f \u0645\u06cc \u06a9\u0646\u0646\u062f<\/h3>\n<p>\u0686\u0646\u062f\u06cc\u0646 \u0648\u06cc\u0698\u06af\u06cc \u0630\u0627\u062a\u06cc \u0633\u06cc\u0633\u062a\u0645 \u0647\u0627\u06cc \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0645\u0633\u06a9\u0648\u0646\u06cc \u0628\u0647 \u0637\u0648\u0631 \u0637\u0628\u06cc\u0639\u06cc \u062c\u0631\u06cc\u0627\u0646 \u0647\u0627\u06cc \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0627\u062d\u062a\u0645\u0627\u0644\u06cc \u0631\u0627 \u0645\u062d\u062f\u0648\u062f \u0645\u06cc \u06a9\u0646\u0646\u062f:<\/p>\n<ol>\n<li><strong>\u0638\u0631\u0641\u06cc\u062a \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631<\/strong>: \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631\u0647\u0627\u06cc \u062a\u0648\u0632\u06cc\u0639 \u0645\u0633\u06a9\u0648\u0646\u06cc \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0627\u0632 25kVA \u062a\u0627 100kVA \u0645\u062a\u063a\u06cc\u0631 \u0647\u0633\u062a\u0646\u062f \u0648 \u062d\u062f\u0627\u06a9\u062b\u0631 \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0645\u0648\u062c\u0648\u062f \u0631\u0627 \u0645\u062d\u062f\u0648\u062f \u0645\u06cc \u06a9\u0646\u0646\u062f.<\/li>\n<li><strong>\u0637\u0648\u0644 \u06a9\u0627\u0628\u0644 \u0648\u0631\u0648\u062f\u06cc \u0633\u0631\u0648\u06cc\u0633<\/strong>: \u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u0647\u0627\u062f\u06cc \u0647\u0627\u06cc \u0648\u0631\u0648\u062f\u06cc \u0633\u0631\u0648\u06cc\u0633 (\u0645\u0639\u0645\u0648\u0644\u0627\u064b 10-30 \u0645\u062a\u0631) \u0628\u0647 \u0637\u0648\u0631 \u0642\u0627\u0628\u0644 \u062a\u0648\u062c\u0647\u06cc \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0631\u0627 \u06a9\u0627\u0647\u0634 \u0645\u06cc \u062f\u0647\u062f.<\/li>\n<li><strong>\u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u0645\u0646\u0628\u0639 \u062a\u063a\u0630\u06cc\u0647<\/strong>: \u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u0634\u0628\u06a9\u0647 \u0628\u0627\u0644\u0627\u062f\u0633\u062a\u06cc\u060c \u0628\u0647 \u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u06a9\u0644\u06cc \u0633\u06cc\u0633\u062a\u0645 \u06a9\u0645\u06a9 \u0645\u06cc \u06a9\u0646\u062f \u0648 \u062c\u0631\u06cc\u0627\u0646 \u0647\u0627\u06cc \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0631\u0627 \u0628\u06cc\u0634\u062a\u0631 \u0645\u062d\u062f\u0648\u062f \u0645\u06cc \u06a9\u0646\u062f.<\/li>\n<li><strong>\u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u062a\u06a9 \u0641\u0627\u0632<\/strong>: \u0627\u06a9\u062b\u0631 \u062a\u0627\u0633\u06cc\u0633\u0627\u062a \u0645\u0633\u06a9\u0648\u0646\u06cc \u0627\u0632 \u0633\u0631\u0648\u06cc\u0633 \u062a\u06a9 \u0641\u0627\u0632 230 \u0648\u0644\u062a \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u0646\u062f \u06a9\u0647 \u0630\u0627\u062a\u0627\u064b \u062c\u0631\u06cc\u0627\u0646 \u0647\u0627\u06cc \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u06a9\u0645\u062a\u0631\u06cc \u0646\u0633\u0628\u062a \u0628\u0647 \u0633\u06cc\u0633\u062a\u0645 \u0647\u0627\u06cc \u0633\u0647 \u0641\u0627\u0632 \u062a\u0648\u0644\u06cc\u062f \u0645\u06cc \u06a9\u0646\u062f.<\/li>\n<\/ol>\n<h3>\u0645\u062d\u0627\u0633\u0628\u0647 PSCC \u0628\u0631\u0627\u06cc \u0627\u0646\u062a\u062e\u0627\u0628 6kA<\/h3>\n<p>\u0628\u0631\u0627\u06cc \u062a\u0623\u06cc\u06cc\u062f \u0627\u06cc\u0646\u06a9\u0647 \u0638\u0631\u0641\u06cc\u062a \u0642\u0637\u0639 6kA \u06a9\u0627\u0641\u06cc \u0627\u0633\u062a\u060c \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0627\u062d\u062a\u0645\u0627\u0644\u06cc \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0641\u0631\u0645\u0648\u0644 \u0632\u06cc\u0631 \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0646\u06cc\u062f:<\/p>\n<p><strong>PSCC = V \/ Z_total<\/strong><\/p>\n<p>\u06a9\u062c\u0627:<\/p>\n<ul>\n<li>V = \u0648\u0644\u062a\u0627\u0698 \u0633\u06cc\u0633\u062a\u0645 (230 \u0648\u0644\u062a \u0628\u0631\u0627\u06cc \u0645\u0633\u06a9\u0648\u0646\u06cc \u062a\u06a9 \u0641\u0627\u0632)<\/li>\n<li>Z_total = \u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u06a9\u0644 \u0633\u06cc\u0633\u062a\u0645 \u0627\u0632 \u0645\u0646\u0628\u0639 \u062a\u0627 \u0646\u0642\u0637\u0647 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647<\/li>\n<\/ul>\n<p>\u0628\u0631\u0627\u06cc \u0645\u0631\u0627\u062d\u0644 \u0645\u062d\u0627\u0633\u0628\u0647 \u062f\u0642\u06cc\u0642\u060c \u0628\u0647 \u0631\u0627\u0647\u0646\u0645\u0627\u06cc \u062c\u0627\u0645\u0639 \u0645\u0627 \u062f\u0631 \u0645\u0648\u0631\u062f <a href=\"https:\/\/test.viox.com\/fa\/how-to-calculate-short-circuit-current-for-mcb\/\">\u0646\u062d\u0648\u0647 \u0645\u062d\u0627\u0633\u0628\u0647 \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0628\u0631\u0627\u06cc MCB \u0645\u0631\u0627\u062c\u0639\u0647 \u06a9\u0646\u06cc\u062f<\/a>.<\/p>\n<p><strong>\u0645\u062b\u0627\u0644 \u0645\u062d\u0627\u0633\u0628\u0647<\/strong>: \u06cc\u06a9 \u062a\u0627\u0633\u06cc\u0633\u0627\u062a \u0645\u0633\u06a9\u0648\u0646\u06cc \u0628\u0627 \u0645\u0646\u0628\u0639 \u062a\u063a\u0630\u06cc\u0647 230 \u0648\u0644\u062a\u060c \u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631 0.02\u03a9 \u0648 \u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u06a9\u0627\u0628\u0644 0.025\u03a9:<\/p>\n<p>Z_total = 0.02 + 0.025 = 0.045\u03a9<\/p>\n<p>PSCC = 230V \/ 0.045\u03a9 = 5,111A \u2248 5.1kA<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646 \u0633\u0646\u0627\u0631\u06cc\u0648\u060c \u06cc\u06a9 MCB 6kA \u062d\u0641\u0627\u0638\u062a \u06a9\u0627\u0641\u06cc \u0628\u0627 \u062d\u0627\u0634\u06cc\u0647 \u0627\u06cc\u0645\u0646\u06cc \u0641\u0631\u0627\u0647\u0645 \u0645\u06cc \u06a9\u0646\u062f. \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u0627\u06af\u0631 PSCC \u0628\u0647 5kA \u0646\u0632\u062f\u06cc\u06a9 \u0634\u0648\u062f \u06cc\u0627 \u0627\u0632 \u0622\u0646 \u0641\u0631\u0627\u062a\u0631 \u0631\u0648\u062f\u060c \u0627\u0631\u062a\u0642\u0627\u0621 \u0628\u0647 MCB \u0647\u0627\u06cc 10kA \u062a\u0648\u0635\u06cc\u0647 \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<h2>\u0686\u0647 \u0632\u0645\u0627\u0646\u06cc \u0627\u0632 MCB \u0647\u0627\u06cc 10kA \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u0645: \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u062a\u062c\u0627\u0631\u06cc \u0648 \u0628\u0627 \u0638\u0631\u0641\u06cc\u062a \u0628\u0627\u0644\u0627<\/h2>\n<p>MCB \u0647\u0627\u06cc \u0628\u0627 \u0638\u0631\u0641\u06cc\u062a \u0642\u0637\u0639 10kA \u0632\u0645\u0627\u0646\u06cc \u0636\u0631\u0648\u0631\u06cc \u0645\u06cc \u0634\u0648\u0646\u062f \u06a9\u0647 \u062c\u0631\u06cc\u0627\u0646 \u0647\u0627\u06cc \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0627\u062d\u062a\u0645\u0627\u0644\u06cc \u0627\u0632 \u0645\u062d\u062f\u0648\u062f\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f \u0627\u06cc\u0645\u0646 \u062f\u0633\u062a\u06af\u0627\u0647 \u0647\u0627\u06cc 6kA \u0641\u0631\u0627\u062a\u0631 \u0631\u0648\u062f. \u062a\u0627\u0633\u06cc\u0633\u0627\u062a \u062a\u062c\u0627\u0631\u06cc\u060c \u0645\u062d\u06cc\u0637 \u0647\u0627\u06cc \u0634\u0647\u0631\u06cc \u0648 \u0645\u06a9\u0627\u0646 \u0647\u0627\u06cc \u0646\u0632\u062f\u06cc\u06a9 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631\u0647\u0627\u06cc \u062a\u063a\u0630\u06cc\u0647 \u0627\u063a\u0644\u0628 \u0628\u0647 \u0627\u06cc\u0646 \u062f\u0631\u062c\u0647 \u0628\u0646\u062f\u06cc \u0628\u0627\u0644\u0627\u062a\u0631 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u0646\u062f.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Commercial-three-phase-panel-with-10kA-breakers.webp\" alt=\"10kA rated MCBs and MCCBs in commercial three-phase distribution panel\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">\u0634\u06a9\u0644 3: \u06cc\u06a9 \u062a\u0627\u0628\u0644\u0648\u06cc \u062a\u0648\u0632\u06cc\u0639 \u0633\u0647 \u0641\u0627\u0632 \u062a\u062c\u0627\u0631\u06cc \u0645\u062c\u0647\u0632 \u0628\u0647 \u0628\u0631\u06cc\u06a9\u0631\u0647\u0627\u06cc \u062f\u0627\u0631\u0627\u06cc \u062f\u0631\u062c\u0647 \u0628\u0646\u062f\u06cc 10kA \u0628\u0631\u0627\u06cc \u062a\u062d\u0645\u0644 \u062c\u0631\u06cc\u0627\u0646 \u0647\u0627\u06cc \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0628\u0627\u0644\u0627\u062a\u0631 \u06a9\u0647 \u062f\u0631 \u0645\u062d\u06cc\u0637 \u0647\u0627\u06cc \u0635\u0646\u0639\u062a\u06cc \u0645\u0639\u0645\u0648\u0644 \u0627\u0633\u062a.<\/figcaption><\/figure>\n<h3>\u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u062d\u06cc\u0627\u062a\u06cc \u06a9\u0647 \u0628\u0647 MCB \u0647\u0627\u06cc 10kA \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u0646\u062f<\/h3>\n<p><strong>\u0633\u0627\u062e\u062a\u0645\u0627\u0646\u200c\u0647\u0627\u06cc \u062a\u062c\u0627\u0631\u06cc<\/strong>: \u0633\u0627\u062e\u062a\u0645\u0627\u0646 \u0647\u0627\u06cc \u0627\u062f\u0627\u0631\u06cc\u060c \u0645\u0631\u0627\u06a9\u0632 \u062e\u0631\u062f\u0647 \u0641\u0631\u0648\u0634\u06cc \u0648 \u0645\u062c\u062a\u0645\u0639 \u0647\u0627\u06cc \u062a\u062c\u0627\u0631\u06cc \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0628\u0647 \u062f\u0644\u06cc\u0644 \u0645\u0648\u0627\u0631\u062f \u0632\u06cc\u0631 \u0628\u0647 MCB \u0647\u0627\u06cc 10kA \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u0646\u062f:<\/p>\n<ul>\n<li>\u062e\u062f\u0645\u0627\u062a \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0633\u0647 \u0641\u0627\u0632 400 \u0648\u0644\u062a \u0628\u0627 \u0638\u0631\u0641\u06cc\u062a \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0628\u0627\u0644\u0627\u062a\u0631<\/li>\n<li>\u0646\u0632\u062f\u06cc\u06a9\u06cc \u0628\u0647 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631\u0647\u0627\u06cc \u062a\u0648\u0632\u06cc\u0639 \u0628\u0632\u0631\u06af\u062a\u0631 (100kVA \u062a\u0627 500kVA)<\/li>\n<li>\u0645\u0633\u06cc\u0631\u0647\u0627\u06cc \u062a\u063a\u0630\u06cc\u0647 \u0645\u0648\u0627\u0632\u06cc \u0645\u062a\u0639\u062f\u062f \u06a9\u0647 \u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u06a9\u0644\u06cc \u0633\u06cc\u0633\u062a\u0645 \u0631\u0627 \u06a9\u0627\u0647\u0634 \u0645\u06cc \u062f\u0647\u0646\u062f<\/li>\n<li>\u0645\u06a9\u0627\u0646 \u0647\u0627\u06cc \u0645\u062a\u0631\u0627\u06a9\u0645 \u0634\u0647\u0631\u06cc \u0628\u0627 \u0632\u06cc\u0631\u0633\u0627\u062e\u062a \u0647\u0627\u06cc \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0642\u0648\u06cc<\/li>\n<\/ul>\n<p><strong>\u062a\u0627\u0628\u0644\u0648\u0647\u0627\u06cc \u062a\u0648\u0632\u06cc\u0639 \u0627\u0635\u0644\u06cc<\/strong>: \u062a\u0627\u0628\u0644\u0648\u06cc \u0628\u0631\u0642 \u0627\u0635\u0644\u06cc \u062f\u0631 \u0647\u0631 \u062a\u0627\u0633\u06cc\u0633\u0627\u062a\u06cc \u0628\u0647 \u062f\u0644\u06cc\u0644 \u0646\u0632\u062f\u06cc\u06a9\u06cc \u0628\u0647 \u0648\u0631\u0648\u062f\u06cc \u0633\u0631\u0648\u06cc\u0633\u060c \u0628\u0627\u0644\u0627\u062a\u0631\u06cc\u0646 \u0633\u0637\u062d \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0631\u0627 \u062a\u062c\u0631\u0628\u0647 \u0645\u06cc \u06a9\u0646\u062f. \u062d\u062a\u06cc \u062f\u0631 \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u0645\u0633\u06a9\u0648\u0646\u06cc\u060c \u062a\u0627\u0628\u0644\u0648\u0647\u0627\u06cc \u0627\u0635\u0644\u06cc \u0627\u063a\u0644\u0628 \u0627\u0632 MCB \u0647\u0627\u06cc 10kA \u0628\u0631\u0627\u06cc \u062d\u0627\u0634\u06cc\u0647 \u0647\u0627\u06cc \u0627\u06cc\u0645\u0646\u06cc \u0628\u06cc\u0634\u062a\u0631 \u0628\u0647\u0631\u0647 \u0645\u0646\u062f \u0645\u06cc \u0634\u0648\u0646\u062f.<\/p>\n<p><strong>\u062a\u0627\u0633\u06cc\u0633\u0627\u062a \u0634\u0647\u0631\u06cc<\/strong>: \u0633\u0627\u062e\u062a\u0645\u0627\u0646 \u0647\u0627 \u062f\u0631 \u0645\u0631\u0627\u06a9\u0632 \u0634\u0647\u0631 \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0628\u0647 \u0634\u0628\u06a9\u0647 \u0647\u0627\u06cc \u0628\u0631\u0642 \u0628\u0627 \u0638\u0631\u0641\u06cc\u062a \u0628\u0627\u0644\u0627 \u0628\u0627 \u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u0645\u0646\u0628\u0639 \u06a9\u0645 \u0645\u062a\u0635\u0644 \u0645\u06cc \u0634\u0648\u0646\u062f \u06a9\u0647 \u0645\u0646\u062c\u0631 \u0628\u0647 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0633\u0637\u062d \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0645\u06cc \u0634\u0648\u062f \u06a9\u0647 \u0627\u0632 \u062f\u0631\u062c\u0647 \u0628\u0646\u062f\u06cc 6kA \u0641\u0631\u0627\u062a\u0631 \u0645\u06cc \u0631\u0648\u062f.<\/p>\n<p><strong>\u062a\u0623\u0633\u06cc\u0633\u0627\u062a \u0635\u0646\u0639\u062a\u06cc<\/strong>: \u06a9\u0627\u0631\u062e\u0627\u0646\u0647 \u0647\u0627\u06cc \u062a\u0648\u0644\u06cc\u062f\u06cc\u060c \u0627\u0646\u0628\u0627\u0631\u0647\u0627 \u0648 \u0633\u0627\u06cc\u062a \u0647\u0627\u06cc \u0635\u0646\u0639\u062a\u06cc \u0628\u0647 \u062f\u0644\u06cc\u0644 \u0628\u0627\u0631\u0647\u0627\u06cc \u0645\u062a\u0635\u0644 \u0628\u0632\u0631\u06af\u060c \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631\u0647\u0627\u06cc \u0645\u062a\u0639\u062f\u062f \u0648 \u0632\u06cc\u0631\u0633\u0627\u062e\u062a \u0647\u0627\u06cc \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0642\u0648\u06cc\u060c \u0628\u0647 \u0638\u0631\u0641\u06cc\u062a \u0647\u0627\u06cc \u0642\u0637\u0639 10kA \u06cc\u0627 \u0628\u0627\u0644\u0627\u062a\u0631 \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u0646\u062f.<\/p>\n<h3>\u0633\u06cc\u0633\u062a\u0645 \u0647\u0627\u06cc \u0633\u0647 \u0641\u0627\u0632 \u0648 \u0636\u0631\u0628 \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647<\/h3>\n<p>\u0633\u06cc\u0633\u062a\u0645 \u0647\u0627\u06cc \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0633\u0647 \u0641\u0627\u0632 \u0630\u0627\u062a\u0627\u064b \u062c\u0631\u06cc\u0627\u0646 \u0647\u0627\u06cc \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0628\u0627\u0644\u0627\u062a\u0631\u06cc \u0646\u0633\u0628\u062a \u0628\u0647 \u0633\u06cc\u0633\u062a\u0645 \u0647\u0627\u06cc \u062a\u06a9 \u0641\u0627\u0632 \u062a\u0648\u0644\u06cc\u062f \u0645\u06cc \u06a9\u0646\u0646\u062f \u0628\u0647 \u062f\u0644\u06cc\u0644:<\/p>\n<ul>\n<li><strong>\u0648\u0644\u062a\u0627\u0698 \u0633\u06cc\u0633\u062a\u0645 \u0628\u0627\u0644\u0627\u062a\u0631<\/strong> (400 \u0648\u0644\u062a \u062e\u0637 \u0628\u0647 \u062e\u0637 \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 230 \u0648\u0644\u062a \u062e\u0637 \u0628\u0647 \u0646\u0648\u0644)<\/li>\n<li><strong>\u0645\u0633\u06cc\u0631\u0647\u0627\u06cc \u062c\u0631\u06cc\u0627\u0646 \u0645\u062a\u0639\u062f\u062f<\/strong> \u062f\u0631 \u0637\u0648\u0644 \u0627\u062a\u0635\u0627\u0644\u0627\u062a \u06a9\u0648\u062a\u0627\u0647 \u0633\u0647 \u0641\u0627\u0632<\/li>\n<li><strong>\u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u06a9\u0645\u062a\u0631<\/strong> \u062f\u0631 \u0633\u06cc\u0645 \u067e\u06cc\u0686 \u0647\u0627\u06cc \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631 \u0633\u0647 \u0641\u0627\u0632<\/li>\n<li><strong>\u0627\u0641\u0632\u0627\u06cc\u0634 \u0638\u0631\u0641\u06cc\u062a \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631<\/strong> \u0645\u0639\u0645\u0648\u0644 \u062f\u0631 \u062a\u0627\u0633\u06cc\u0633\u0627\u062a \u062a\u062c\u0627\u0631\u06cc<\/li>\n<\/ul>\n<p>\u0628\u0631\u0627\u06cc \u0633\u06cc\u0633\u062a\u0645 \u0647\u0627\u06cc \u0633\u0647 \u0641\u0627\u0632\u060c \u0645\u062d\u0627\u0633\u0628\u0647 \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0628\u0647 \u0635\u0648\u0631\u062a \u0632\u06cc\u0631 \u0627\u0633\u062a:<\/p>\n<p><strong>PSCC = V_LL \/ (\u221a3 \u00d7 Z_total)<\/strong><\/p>\n<p>\u062c\u0627\u06cc\u06cc \u06a9\u0647 V_LL \u0648\u0644\u062a\u0627\u0698 \u062e\u0637 \u0628\u0647 \u062e\u0637 \u0627\u0633\u062a (\u0645\u0639\u0645\u0648\u0644\u0627\u064b 400 \u0648\u0644\u062a \u062f\u0631 \u0627\u0631\u0648\u067e\u0627\u060c 480 \u0648\u0644\u062a \u062f\u0631 \u0622\u0645\u0631\u06cc\u06a9\u0627\u06cc \u0634\u0645\u0627\u0644\u06cc).<\/p>\n<h3>\u0646\u0632\u062f\u06cc\u06a9\u06cc \u0628\u0647 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631: \u0639\u0627\u0645\u0644 \u0641\u0627\u0635\u0644\u0647<\/h3>\n<p>\u0641\u0627\u0635\u0644\u0647 \u0628\u06cc\u0646 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631 \u062a\u063a\u0630\u06cc\u0647 \u0648 \u0645\u062d\u0644 \u0646\u0635\u0628 MCB \u0628\u0647 \u0637\u0648\u0631 \u062c\u062f\u06cc \u0628\u0631 \u0633\u0637\u062d \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u062a\u0623\u062b\u06cc\u0631 \u0645\u06cc \u06af\u0630\u0627\u0631\u062f. \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u06cc\u06a9 \u062f\u0633\u062a\u0648\u0631\u0627\u0644\u0639\u0645\u0644 \u06a9\u0644\u06cc:<\/p>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left; margin-bottom: 20px;\" border=\"1\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"padding: 8px;\">\u0641\u0627\u0635\u0644\u0647 \u0627\u0632 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631<\/th>\n<th style=\"padding: 8px;\">\u0645\u062d\u062f\u0648\u062f\u0647 PSCC \u0645\u0639\u0645\u0648\u0644\u06cc<\/th>\n<th style=\"padding: 8px;\">\u0631\u0646\u062c \u067e\u06cc\u0634\u0646\u0647\u0627\u062f\u06cc MCB<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\">0-20 \u0645\u062a\u0631<\/td>\n<td style=\"padding: 8px;\">8-15kA<\/td>\n<td style=\"padding: 8px;\">\u062d\u062f\u0627\u0642\u0644 10kA (15kA \u0631\u0627 \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">20-50 \u0645\u062a\u0631<\/td>\n<td style=\"padding: 8px;\">5-10kA<\/td>\n<td style=\"padding: 8px;\">10kA \u062a\u0648\u0635\u06cc\u0647 \u0645\u06cc \u0634\u0648\u062f<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">50-100 \u0645\u062a\u0631<\/td>\n<td style=\"padding: 8px;\">3-6kA<\/td>\n<td style=\"padding: 8px;\">6kA \u06cc\u0627 10kA \u0628\u0631 \u0627\u0633\u0627\u0633 \u0645\u062d\u0627\u0633\u0628\u0647<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">&gt;100 \u0645\u062a\u0631<\/td>\n<td style=\"padding: 8px;\">1-4kA<\/td>\n<td style=\"padding: 8px;\">6kA \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u06a9\u0627\u0641\u06cc \u0627\u0633\u062a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>\u062a\u0648\u062c\u0647 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u06cc\u062f<\/strong>: \u0627\u06cc\u0646 \u0645\u0642\u0627\u062f\u06cc\u0631 \u062a\u0642\u0631\u06cc\u0628\u06cc \u0647\u0633\u062a\u0646\u062f \u0648 \u0628\u0647 \u0638\u0631\u0641\u06cc\u062a \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631\u060c \u0627\u0646\u062f\u0627\u0632\u0647 \u06a9\u0627\u0628\u0644 \u0648 \u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u0633\u06cc\u0633\u062a\u0645 \u0628\u0633\u062a\u06af\u06cc \u062f\u0627\u0631\u0646\u062f. \u0647\u0645\u06cc\u0634\u0647 \u0645\u062d\u0627\u0633\u0628\u0627\u062a \u062f\u0642\u06cc\u0642 \u0631\u0627 \u0628\u0631\u0627\u06cc \u062a\u0627\u0633\u06cc\u0633\u0627\u062a \u062d\u06cc\u0627\u062a\u06cc \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u06cc\u062f.<\/p>\n<h2>\u0631\u0627\u0647\u0646\u0645\u0627\u06cc \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u0627\u0631\u0628\u0631\u062f: \u062a\u0637\u0628\u06cc\u0642 \u0638\u0631\u0641\u06cc\u062a \u0642\u0637\u0639 \u0628\u0627 \u0646\u0648\u0639 \u0646\u0635\u0628<\/h2>\n<p>\u062c\u062f\u0648\u0644 \u0632\u06cc\u0631 \u0631\u0627\u0647\u0646\u0645\u0627\u06cc\u06cc \u0639\u0645\u0644\u06cc \u0628\u0631\u0627\u06cc \u0627\u0646\u062a\u062e\u0627\u0628 \u0638\u0631\u0641\u06cc\u062a \u0642\u0637\u0639 \u0645\u0646\u0627\u0633\u0628 MCB \u0628\u0631 \u0627\u0633\u0627\u0633 \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u0646\u0635\u0628 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u062f:<\/p>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left; margin-bottom: 20px;\" border=\"1\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"padding: 8px;\">\u0646\u0648\u0639 \u0646\u0635\u0628<\/th>\n<th style=\"padding: 8px;\">\u067e\u06cc\u06a9\u0631\u0628\u0646\u062f\u06cc \u0633\u06cc\u0633\u062a\u0645<\/th>\n<th style=\"padding: 8px;\">\u0645\u062c\u0627\u0648\u0631\u062a \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631<\/th>\n<th style=\"padding: 8px;\">\u0638\u0631\u0641\u06cc\u062a \u0642\u0637\u0639 \u062a\u0648\u0635\u06cc\u0647 \u0634\u062f\u0647<\/th>\n<th style=\"padding: 8px;\">\u062a\u0648\u062c\u06cc\u0647<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u062e\u0627\u0646\u0647 \u062a\u06a9 \u062e\u0627\u0646\u0648\u0627\u0631\u06cc<\/strong><\/td>\n<td style=\"padding: 8px;\">\u062a\u06a9 \u0641\u0627\u0632 230 \u0648\u0644\u062a\u060c \u0633\u0631\u0648\u06cc\u0633 &lt;100 \u0622\u0645\u067e\u0631<\/td>\n<td style=\"padding: 8px;\">&gt;30 \u0645\u062a\u0631<\/td>\n<td style=\"padding: 8px;\">\u06f6 \u06a9\u06cc\u0644\u0648\u0622\u0645\u067e\u0631<\/td>\n<td style=\"padding: 8px;\">PSCC \u067e\u0627\u06cc\u06cc\u0646\u060c \u062d\u0627\u0634\u06cc\u0647 \u0627\u06cc\u0645\u0646\u06cc \u06a9\u0627\u0641\u06cc<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u0633\u0627\u062e\u062a\u0645\u0627\u0646 \u0622\u067e\u0627\u0631\u062a\u0645\u0627\u0646\u06cc<\/strong><\/td>\n<td style=\"padding: 8px;\">\u062a\u06a9 \u0641\u0627\u0632 230 \u0648\u0644\u062a\u060c \u0648\u0627\u062d\u062f\u0647\u0627\u06cc \u0645\u062a\u0639\u062f\u062f<\/td>\n<td style=\"padding: 8px;\">20-50 \u0645\u062a\u0631<\/td>\n<td style=\"padding: 8px;\">6kA (\u0634\u0627\u062e\u0647)\u060c 10kA (\u0627\u0635\u0644\u06cc)<\/td>\n<td style=\"padding: 8px;\">\u067e\u0646\u0644 \u0627\u0635\u0644\u06cc \u0628\u0647 \u0631\u062a\u0628\u0647 \u0628\u0627\u0644\u0627\u062a\u0631\u06cc \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u062f<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u062e\u0631\u062f\u0647 \u0641\u0631\u0648\u0634\u06cc\/\u062f\u0641\u062a\u0631 \u06a9\u0648\u0686\u06a9<\/strong><\/td>\n<td style=\"padding: 8px;\">\u062a\u06a9 \u0641\u0627\u0632 230 \u0648\u0644\u062a\u060c &lt;200 \u0622\u0645\u067e\u0631<\/td>\n<td style=\"padding: 8px;\">\u0645\u062a\u063a\u06cc\u0631<\/td>\n<td style=\"padding: 8px;\">\u06f1\u06f0 \u06a9\u06cc\u0644\u0648\u0622\u0645\u067e\u0631<\/td>\n<td style=\"padding: 8px;\">\u0627\u0644\u0632\u0627\u0645\u0627\u062a \u06a9\u062f \u062a\u062c\u0627\u0631\u06cc<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u0633\u0627\u062e\u062a\u0645\u0627\u0646 \u062a\u062c\u0627\u0631\u06cc \u0628\u0632\u0631\u06af<\/strong><\/td>\n<td style=\"padding: 8px;\">\u0633\u0647 \u0641\u0627\u0632 400 \u0648\u0644\u062a\u060c &gt;200 \u0622\u0645\u067e\u0631<\/td>\n<td style=\"padding: 8px;\">&lt;30 \u0645\u062a\u0631<\/td>\n<td style=\"padding: 8px;\">\u062d\u062f\u0627\u0642\u0644 10 \u06a9\u06cc\u0644\u0648\u0622\u0645\u067e\u0631<\/td>\n<td style=\"padding: 8px;\">\u062c\u0631\u06cc\u0627\u0646 \u0647\u0627\u06cc \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0628\u0627\u0644\u0627\u060c \u0627\u0646\u0637\u0628\u0627\u0642 \u0628\u0627 \u06a9\u062f<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u062a\u0627\u0633\u06cc\u0633\u0627\u062a \u0635\u0646\u0639\u062a\u06cc<\/strong><\/td>\n<td style=\"padding: 8px;\">\u0633\u0647 \u0641\u0627\u0632 400 \u0648\u0644\u062a\u060c &gt;400 \u0622\u0645\u067e\u0631<\/td>\n<td style=\"padding: 8px;\">&lt;20 \u0645\u062a\u0631<\/td>\n<td style=\"padding: 8px;\">10kA-25kA<\/td>\n<td style=\"padding: 8px;\">PSCC \u0628\u0633\u06cc\u0627\u0631 \u0628\u0627\u0644\u0627\u060c \u062d\u0641\u0627\u0638\u062a \u062a\u062e\u0635\u0635\u06cc<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u0633\u0627\u062e\u062a\u0645\u0627\u0646 \u0628\u0644\u0646\u062f \u0645\u0631\u062a\u0628\u0647 \u0634\u0647\u0631\u06cc<\/strong><\/td>\n<td style=\"padding: 8px;\">\u0633\u0647 \u0641\u0627\u0632 400 \u0648\u0644\u062a\u060c \u0633\u0631\u0648\u06cc\u0633 \u0647\u0627\u06cc \u0645\u062a\u0639\u062f\u062f<\/td>\n<td style=\"padding: 8px;\">&lt;10 \u0645\u062a\u0631<\/td>\n<td style=\"padding: 8px;\">10kA-15kA<\/td>\n<td style=\"padding: 8px;\">\u0634\u0628\u06a9\u0647 \u0628\u0631\u0642 \u0642\u0648\u06cc\u060c \u0638\u0631\u0641\u06cc\u062a \u0628\u0627\u0644\u0627<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u0646\u0635\u0628 \u0631\u0648\u0633\u062a\u0627\u06cc\u06cc<\/strong><\/td>\n<td style=\"padding: 8px;\">\u062a\u06a9 \u0641\u0627\u0632 230 \u0648\u0644\u062a\u060c \u0645\u0633\u06cc\u0631 \u0633\u0631\u0648\u06cc\u0633 \u0637\u0648\u0644\u0627\u0646\u06cc<\/td>\n<td style=\"padding: 8px;\">&gt;100 \u0645\u062a\u0631<\/td>\n<td style=\"padding: 8px;\">\u06f6 \u06a9\u06cc\u0644\u0648\u0622\u0645\u067e\u0631<\/td>\n<td style=\"padding: 8px;\">\u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u0628\u0627\u0644\u0627 \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0631\u0627 \u0645\u062d\u062f\u0648\u062f \u0645\u06cc \u06a9\u0646\u062f<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc \u0641\u062a\u0648\u0648\u0644\u062a\u0627\u0626\u06cc\u06a9 \u062e\u0648\u0631\u0634\u06cc\u062f\u06cc<\/strong><\/td>\n<td style=\"padding: 8px;\">\u0645\u062f\u0627\u0631\u0647\u0627\u06cc DC\u060c \u0645\u062a\u063a\u06cc\u0631<\/td>\n<td style=\"padding: 8px;\">\u0646\u0627\u0645\u0648\u062c\u0648\u062f<\/td>\n<td style=\"padding: 8px;\">\u062f\u0627\u0631\u0627\u06cc \u0631\u062a\u0628\u0647 \u0628\u0631\u0627\u06cc \u0642\u0637\u0639 DC<\/td>\n<td style=\"padding: 8px;\">MCB \u0647\u0627\u06cc \u0648\u06cc\u0698\u0647 \u062f\u0627\u0631\u0627\u06cc \u0631\u062a\u0628\u0647 DC \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632 \u0627\u0633\u062a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u0627\u0646\u0637\u0628\u0627\u0642 \u0628\u0627 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f\u0647\u0627\u06cc IEC: \u062f\u0631\u06a9 60898-1 \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 60947-2<\/h2>\n<p>\u0627\u0646\u062a\u062e\u0627\u0628 \u0645\u0646\u0627\u0633\u0628 MCB \u0645\u0633\u062a\u0644\u0632\u0645 \u062f\u0631\u06a9 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f\u0647\u0627\u06cc \u0628\u06cc\u0646 \u0627\u0644\u0645\u0644\u0644\u06cc \u0642\u0627\u0628\u0644 \u0627\u062c\u0631\u0627 \u0648 \u0627\u0644\u0632\u0627\u0645\u0627\u062a \u0622\u0646\u0647\u0627 \u0627\u0633\u062a. \u062f\u0648 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u0627\u0635\u0644\u06cc \u062d\u0627\u06a9\u0645 \u0628\u0631 \u0638\u0631\u0641\u06cc\u062a \u0642\u0637\u0639 MCB\u060c IEC 60898-1 \u0648 IEC 60947-2 \u0647\u0633\u062a\u0646\u062f \u06a9\u0647 \u0647\u0631 \u06a9\u062f\u0627\u0645 \u0628\u0647 \u062d\u0648\u0632\u0647 \u0647\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u0645\u062e\u062a\u0644\u0641 \u0645\u06cc \u067e\u0631\u062f\u0627\u0632\u0646\u062f.<\/p>\n<h3>IEC 60898-1: \u062a\u0627\u0633\u06cc\u0633\u0627\u062a \u0645\u0633\u06a9\u0648\u0646\u06cc \u0648 \u0645\u0634\u0627\u0628\u0647<\/h3>\n<p>IEC 60898-1 \u0628\u0647 \u0637\u0648\u0631 \u062e\u0627\u0635 \u0628\u0631 \u06a9\u0644\u06cc\u062f\u0647\u0627\u06cc \u0645\u06cc\u0646\u06cc\u0627\u062a\u0648\u0631\u06cc \u0628\u0631\u0627\u06cc \u0645\u0635\u0627\u0631\u0641 \u062e\u0627\u0646\u06af\u06cc \u0648 \u062a\u0627\u0633\u06cc\u0633\u0627\u062a \u0645\u0634\u0627\u0628\u0647 \u062d\u0627\u06a9\u0645 \u0627\u0633\u062a\u060c \u0627\u0632 \u062c\u0645\u0644\u0647:<\/p>\n<ul>\n<li><strong>\u0648\u0644\u062a\u0627\u0698 \u0627\u0645\u062a\u06cc\u0627\u0632<\/strong>: \u062a\u0627 440 \u0648\u0644\u062a AC<\/li>\n<li><strong>\u0632\u0645\u0627\u0646 \u0627\u0645\u062a\u06cc\u0627\u0632<\/strong>: \u062a\u0627 125 \u0622\u0645\u067e\u0631<\/li>\n<li><strong>\u0634\u06a9\u0633\u062a\u0646 \u0638\u0631\u0641\u06cc\u062a (Icn)<\/strong>: \u0645\u0639\u0645\u0648\u0644\u0627\u064b 3kA\u060c 6kA\u060c 10kA \u06cc\u0627 15kA<\/li>\n<li><strong>\u062f\u0645\u0627\u06cc \u0645\u0631\u062c\u0639<\/strong>: \u062f\u0645\u0627\u06cc \u0645\u062d\u06cc\u0637 30 \u062f\u0631\u062c\u0647 \u0633\u0627\u0646\u062a\u06cc\u06af\u0631\u0627\u062f<\/li>\n<li><strong>\u0645\u0646\u062d\u0646\u06cc\u200c\u0647\u0627\u06cc \u0633\u0641\u0631<\/strong>: \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc B\u060c C \u0648 D<\/li>\n<li><strong>\u06a9\u0627\u0631\u0628\u0631\u062f<\/strong>: \u0645\u0633\u06a9\u0648\u0646\u06cc\u060c \u062f\u0641\u0627\u062a\u0631\u060c \u0645\u062f\u0627\u0631\u0633\u060c \u062a\u062c\u0627\u0631\u06cc \u0633\u0628\u06a9<\/li>\n<\/ul>\n<p>\u0627\u06cc\u0646 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f Icn (\u0638\u0631\u0641\u06cc\u062a \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0646\u0627\u0645\u06cc) \u0631\u0627 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0638\u0631\u0641\u06cc\u062a \u0642\u0637\u0639 \u0645\u0637\u0627\u0628\u0642 \u0628\u0627 \u06cc\u06a9 \u062a\u0648\u0627\u0644\u06cc \u0622\u0632\u0645\u0627\u06cc\u0634 \u0645\u0634\u062e\u0635 \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc \u06a9\u0646\u062f. \u0628\u0631\u0627\u06cc MCB \u0647\u0627\u06cc 6kA \u0648 10kA \u062a\u062d\u062a IEC 60898-1:<\/p>\n<ul>\n<li><strong>\u0631\u062a\u0628\u0647 6kA<\/strong>: \u0628\u0627\u06cc\u062f \u0628\u0627 \u0645\u0648\u0641\u0642\u06cc\u062a \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 6000 \u0622\u0645\u067e\u0631 \u0631\u0627 \u062f\u0631 \u0648\u0644\u062a\u0627\u0698 \u0646\u0627\u0645\u06cc \u0642\u0637\u0639 \u06a9\u0646\u062f<\/li>\n<li><strong>\u0631\u062a\u0628\u0647 10kA<\/strong>: \u0628\u0627\u06cc\u062f \u0628\u0627 \u0645\u0648\u0641\u0642\u06cc\u062a \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 10000 \u0622\u0645\u067e\u0631 \u0631\u0627 \u062f\u0631 \u0648\u0644\u062a\u0627\u0698 \u0646\u0627\u0645\u06cc \u0642\u0637\u0639 \u06a9\u0646\u062f<\/li>\n<\/ul>\n<h3>IEC 60947-2: \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u0635\u0646\u0639\u062a\u06cc \u0648 \u062a\u062c\u0627\u0631\u06cc<\/h3>\n<p>IEC 60947-2 \u0628\u0647 \u06a9\u0644\u06cc\u062f\u0647\u0627\u06cc \u0627\u062a\u0648\u0645\u0627\u062a\u06cc\u06a9 \u0642\u0627\u0628 \u062f\u0627\u0631 (MCCB) \u0648 MCB \u0647\u0627\u06cc \u0635\u0646\u0639\u062a\u06cc \u0628\u0631\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u0633\u062e\u062a \u062a\u0631 \u0645\u06cc \u067e\u0631\u062f\u0627\u0632\u062f:<\/p>\n<ul>\n<li><strong>\u0648\u0644\u062a\u0627\u0698 \u0627\u0645\u062a\u06cc\u0627\u0632<\/strong>: \u062a\u0627 1000 \u0648\u0644\u062a AC<\/li>\n<li><strong>\u0632\u0645\u0627\u0646 \u0627\u0645\u062a\u06cc\u0627\u0632<\/strong>: 16 \u0622\u0645\u067e\u0631 \u062a\u0627 6300 \u0622\u0645\u067e\u0631<\/li>\n<li><strong>100A\u060c 160A\u060c 250A\u060c 400A\u060c 630A<\/strong>: 10kA \u062a\u0627 150kA \u0628\u0633\u062a\u0647 \u0628\u0647 \u0627\u0646\u062f\u0627\u0632\u0647 \u0642\u0627\u0628<\/li>\n<li><strong>\u062f\u0645\u0627\u06cc \u0645\u0631\u062c\u0639<\/strong>: \u062f\u0645\u0627\u06cc \u0645\u062d\u06cc\u0637 40 \u062f\u0631\u062c\u0647 \u0633\u0627\u0646\u062a\u06cc\u06af\u0631\u0627\u062f<\/li>\n<li><strong>\u062a\u0646\u0638\u06cc\u0645\u0627\u062a \u0642\u0627\u0628\u0644 \u062a\u0646\u0638\u06cc\u0645<\/strong>: \u062a\u0646\u0638\u06cc\u0645\u0627\u062a \u062d\u0631\u0627\u0631\u062a\u06cc \u0648 \u0645\u063a\u0646\u0627\u0637\u06cc\u0633\u06cc<\/li>\n<li><strong>\u06a9\u0627\u0631\u0628\u0631\u062f<\/strong>: \u0635\u0646\u0639\u062a\u06cc\u060c \u062a\u062c\u0627\u0631\u06cc \u0633\u0646\u06af\u06cc\u0646\u060c \u0633\u06cc\u0633\u062a\u0645 \u0647\u0627\u06cc \u062a\u0648\u0632\u06cc\u0639<\/li>\n<\/ul>\n<p>\u0627\u06cc\u0646 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u0647\u0645 Icu (\u0638\u0631\u0641\u06cc\u062a \u0642\u0637\u0639 \u0646\u0647\u0627\u06cc\u06cc) \u0648 \u0647\u0645 Ics (\u0638\u0631\u0641\u06cc\u062a \u0642\u0637\u0639 \u0633\u0631\u0648\u06cc\u0633) \u0631\u0627 \u062a\u0639\u0631\u06cc\u0641 \u0645\u06cc \u06a9\u0646\u062f\u060c \u062c\u0627\u06cc\u06cc \u06a9\u0647 Ics \u062c\u0631\u06cc\u0627\u0646\u06cc \u0631\u0627 \u0646\u0634\u0627\u0646 \u0645\u06cc \u062f\u0647\u062f \u06a9\u0647 \u06a9\u0644\u06cc\u062f \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0686\u0646\u062f\u06cc\u0646 \u0628\u0627\u0631 \u0642\u0637\u0639 \u06a9\u0646\u062f \u062f\u0631 \u062d\u0627\u0644\u06cc \u06a9\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f \u062e\u0648\u062f \u0631\u0627 \u062d\u0641\u0638 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p>\u0628\u0631\u0627\u06cc \u0645\u0642\u0627\u06cc\u0633\u0647 \u062f\u0642\u06cc\u0642 \u0627\u06cc\u0646 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f\u0647\u0627\u060c \u0628\u0647 \u0631\u0627\u0647\u0646\u0645\u0627\u06cc \u0645\u0627 \u062f\u0631 \u0645\u0648\u0631\u062f <a href=\"https:\/\/test.viox.com\/fa\/iec-60898-1-vs-iec-60947-2\/\">IEC 60898-1 \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 IEC 60947-2 \u0645\u0631\u0627\u062c\u0639\u0647 \u06a9\u0646\u06cc\u062f<\/a>.<\/p>\n<h3>\u062c\u062f\u0648\u0644 \u0645\u0642\u0627\u06cc\u0633\u0647 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f\u0647\u0627<\/h3>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left; margin-bottom: 20px;\" border=\"1\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th style=\"padding: 8px;\">\u067e\u0627\u0631\u0627\u0645\u062a\u0631<\/th>\n<th style=\"padding: 8px;\">IEC 60898-1 (MCB \u0645\u0633\u06a9\u0648\u0646\u06cc)<\/th>\n<th style=\"padding: 8px;\">IEC 60947-2 (MCCB \u0635\u0646\u0639\u062a\u06cc)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u06a9\u0627\u0631\u0628\u0631\u062f \u0627\u0648\u0644\u06cc\u0647<\/strong><\/td>\n<td style=\"padding: 8px;\">\u0645\u0635\u0627\u0631\u0641 \u062e\u0627\u0646\u06af\u06cc\u060c \u062a\u062c\u0627\u0631\u06cc \u0633\u0628\u06a9<\/td>\n<td style=\"padding: 8px;\">\u0635\u0646\u0639\u062a\u06cc\u060c \u062a\u062c\u0627\u0631\u06cc \u0633\u0646\u06af\u06cc\u0646<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u062d\u062f\u0627\u06a9\u062b\u0631 \u0648\u0644\u062a\u0627\u0698<\/strong><\/td>\n<td style=\"padding: 8px;\">440 \u0648\u0644\u062a AC<\/td>\n<td style=\"padding: 8px;\">1,000 \u0648\u0644\u062a AC<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u0645\u062d\u062f\u0648\u062f\u0647 \u0641\u0639\u0644\u06cc<\/strong><\/td>\n<td style=\"padding: 8px;\">\u4e0d\u8d85\u8fc7125A<\/td>\n<td style=\"padding: 8px;\">16 \u0622\u0645\u067e\u0631 \u062a\u0627 6,300 \u0622\u0645\u067e\u0631<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u062a\u0639\u06cc\u06cc\u0646 \u0638\u0631\u0641\u06cc\u062a \u0642\u0637\u0639<\/strong><\/td>\n<td style=\"padding: 8px;\">Icn (\u0638\u0631\u0641\u06cc\u062a \u0646\u0627\u0645\u06cc)<\/td>\n<td style=\"padding: 8px;\">Icu (\u0646\u0647\u0627\u06cc\u06cc)\u060c Ics (\u0633\u0631\u0648\u06cc\u0633)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u062f\u0645\u0627\u06cc \u0645\u062d\u06cc\u0637 \u0645\u0631\u062c\u0639<\/strong><\/td>\n<td style=\"padding: 8px;\">\u06f3\u06f0 \u062f\u0631\u062c\u0647 \u0633\u0627\u0646\u062a\u06cc\u200c\u06af\u0631\u0627\u062f<\/td>\n<td style=\"padding: 8px;\">\u06f4\u06f0 \u062f\u0631\u062c\u0647 \u0633\u0627\u0646\u062a\u06cc\u200c\u06af\u0631\u0627\u062f<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u0645\u0646\u062d\u0646\u06cc\u200c\u0647\u0627\u06cc \u0633\u0641\u0631<\/strong><\/td>\n<td style=\"padding: 8px;\">\u062b\u0627\u0628\u062a (B, C, D)<\/td>\n<td style=\"padding: 8px;\">\u062d\u0631\u0627\u0631\u062a\u06cc\/\u0645\u063a\u0646\u0627\u0637\u06cc\u0633\u06cc \u0642\u0627\u0628\u0644 \u062a\u0646\u0638\u06cc\u0645<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u0639\u0645\u0648\u0644 6kA\/10kA<\/strong><\/td>\n<td style=\"padding: 8px;\">\u0645\u062f\u0627\u0631\u0647\u0627\u06cc \u0627\u0646\u0634\u0639\u0627\u0628\u06cc \u0645\u0633\u06a9\u0648\u0646\u06cc<\/td>\n<td style=\"padding: 8px;\">\u0641\u06cc\u062f\u0631\u0647\u0627\u06cc \u062a\u062c\u0627\u0631\u06cc\u060c \u062a\u0648\u0632\u06cc\u0639<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u0627\u0644\u0632\u0627\u0645\u0627\u062a \u0622\u0632\u0645\u0627\u06cc\u0634<\/strong><\/td>\n<td style=\"padding: 8px;\">\u062a\u0648\u0627\u0644\u06cc \u062a\u0633\u062a \u0633\u0627\u062f\u0647 \u0634\u062f\u0647<\/td>\n<td style=\"padding: 8px;\">\u062a\u0648\u0627\u0644\u06cc \u062a\u0633\u062a \u062c\u0627\u0645\u0639<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u0647\u0645\u0627\u0647\u0646\u06af\u06cc \u0627\u0646\u062a\u062e\u0627\u0628\u06cc<\/strong><\/td>\n<td style=\"padding: 8px;\">\u067e\u0627\u06cc\u0647<\/td>\n<td style=\"padding: 8px;\">\u062c\u062f\u0627\u0648\u0644 \u0647\u0645\u0627\u0647\u0646\u06af\u06cc \u067e\u06cc\u0634\u0631\u0641\u062a\u0647<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Electrical-distribution-schematic-showing-fault-current-levels.webp\" alt=\"Electrical distribution schematic showing fault current levels from transformer to end circuits\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">\u0634\u06a9\u0644 4: \u0634\u0645\u0627\u062a\u06cc\u06a9 \u06cc\u06a9 \u0633\u06cc\u0633\u062a\u0645 \u062a\u0648\u0632\u06cc\u0639 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u06a9\u0647 \u0646\u0634\u0627\u0646 \u0645\u06cc\u200c\u062f\u0647\u062f \u0686\u06af\u0648\u0646\u0647 \u0633\u0637\u0648\u062d \u062c\u0631\u06cc\u0627\u0646 \u062e\u0637\u0627 (\u0648 \u0638\u0631\u0641\u06cc\u062a\u200c\u0647\u0627\u06cc \u0642\u0637\u0639 \u0645\u0648\u0631\u062f \u0646\u06cc\u0627\u0632) \u0628\u0627 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0641\u0627\u0635\u0644\u0647 \u0627\u0632 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631 \u06a9\u0627\u0647\u0634 \u0645\u06cc\u200c\u06cc\u0627\u0628\u062f.<\/figcaption><\/figure>\n<h2>\u0686\u0627\u0631\u0686\u0648\u0628 \u062a\u0635\u0645\u06cc\u0645\u200c\u06af\u06cc\u0631\u06cc: \u0627\u0646\u062a\u062e\u0627\u0628 \u0638\u0631\u0641\u06cc\u062a \u0642\u0637\u0639 \u0645\u0646\u0627\u0633\u0628<\/h2>\n<p>\u0627\u0646\u062a\u062e\u0627\u0628 \u0628\u06cc\u0646 MCB\u0647\u0627\u06cc 6kA \u0648 10kA \u0646\u06cc\u0627\u0632\u0645\u0646\u062f \u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0633\u06cc\u0633\u062a\u0645\u0627\u062a\u06cc\u06a9 \u0639\u0648\u0627\u0645\u0644 \u0645\u062a\u0639\u062f\u062f \u0627\u0633\u062a. \u0628\u0631\u0627\u06cc \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u0627\u0632 \u0627\u0646\u062a\u062e\u0627\u0628 \u0645\u0646\u0627\u0633\u0628\u060c \u0627\u06cc\u0646 \u0686\u0627\u0631\u0686\u0648\u0628 \u062a\u0635\u0645\u06cc\u0645\u200c\u06af\u06cc\u0631\u06cc \u0631\u0627 \u062f\u0646\u0628\u0627\u0644 \u06a9\u0646\u06cc\u062f:<\/p>\n<h3>\u0645\u0631\u062d\u0644\u0647 1: \u0645\u062d\u0627\u0633\u0628\u0647 \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0627\u062d\u062a\u0645\u0627\u0644\u06cc (PSCC)<\/h3>\n<p>\u062d\u062f\u0627\u06a9\u062b\u0631 \u062c\u0631\u06cc\u0627\u0646 \u062e\u0637\u0627 \u0631\u0627 \u062f\u0631 \u0646\u0642\u0637\u0647 \u0646\u0635\u0628 MCB \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06cc\u06a9\u06cc \u0627\u0632 \u0627\u06cc\u0646 \u0631\u0648\u0634\u200c\u0647\u0627 \u062a\u0639\u06cc\u06cc\u0646 \u06a9\u0646\u06cc\u062f:<\/p>\n<p><strong>\u0631\u0648\u0634 A: \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u0634\u0631\u06a9\u062a \u0628\u0631\u0642<\/strong><br \/>\n\u0628\u0627 \u0634\u0631\u06a9\u062a \u0628\u0631\u0642 \u062a\u0645\u0627\u0633 \u0628\u06af\u06cc\u0631\u06cc\u062f \u062a\u0627 \u062c\u0631\u06cc\u0627\u0646 \u062e\u0637\u0627\u06cc \u0645\u0648\u062c\u0648\u062f \u062f\u0631 \u0648\u0631\u0648\u062f\u06cc \u0633\u0631\u0648\u06cc\u0633 \u0631\u0627 \u0628\u062f\u0633\u062a \u0622\u0648\u0631\u06cc\u062f. \u0627\u06cc\u0646 \u062f\u0642\u06cc\u0642\u200c\u062a\u0631\u06cc\u0646 \u0646\u0642\u0637\u0647 \u0634\u0631\u0648\u0639 \u0628\u0631\u0627\u06cc \u0645\u062d\u0627\u0633\u0628\u0627\u062a \u0631\u0627 \u0641\u0631\u0627\u0647\u0645 \u0645\u06cc\u200c\u06a9\u0646\u062f.<\/p>\n<p><strong>\u0631\u0648\u0634 B: \u0645\u062d\u0627\u0633\u0628\u0647 \u0627\u0632 \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631<\/strong><br \/>\n\u0627\u0632 \u062f\u0627\u062f\u0647\u200c\u0647\u0627\u06cc \u067e\u0644\u0627\u06a9 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631 \u0648 \u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u06a9\u0627\u0628\u0644 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f:<\/p>\n<ol>\n<li>\u062c\u0631\u06cc\u0627\u0646 \u062b\u0627\u0646\u0648\u06cc\u0647 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631 \u0631\u0627 \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0646\u06cc\u062f: I_transformer = S_kVA \/ (\u221a3 \u00d7 V)<\/li>\n<li>\u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631 \u0631\u0627 \u062a\u0639\u06cc\u06cc\u0646 \u06a9\u0646\u06cc\u062f: Z_transformer = (V\u00b2 \u00d7 %Z) \/ (S_kVA \u00d7 100)<\/li>\n<li>\u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u06a9\u0627\u0628\u0644 \u0631\u0627 \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0646\u06cc\u062f: Z_cable = (\u03c1 \u00d7 L) \/ A<\/li>\n<li>\u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u06a9\u0644 \u0631\u0627 \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0646\u06cc\u062f: Z_total = Z_transformer + Z_cable<\/li>\n<li>PSCC \u0631\u0627 \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0646\u06cc\u062f: PSCC = V \/ Z_total<\/li>\n<\/ol>\n<p><strong>\u0631\u0648\u0634 C: \u062a\u0633\u062a<\/strong><br \/>\n\u0627\u0632 \u06cc\u06a9 \u062a\u0633\u062a\u0631 \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0627\u062d\u062a\u0645\u0627\u0644\u06cc \u0628\u0631\u0627\u06cc \u0627\u0646\u062f\u0627\u0632\u0647\u200c\u06af\u06cc\u0631\u06cc \u062c\u0631\u06cc\u0627\u0646 \u062e\u0637\u0627\u06cc \u0648\u0627\u0642\u0639\u06cc \u062f\u0631 \u0646\u0642\u0637\u0647 \u0646\u0635\u0628 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f. \u0627\u06cc\u0646 \u0631\u0648\u0634 \u062f\u0642\u06cc\u0642\u200c\u062a\u0631\u06cc\u0646 \u0646\u062a\u0627\u06cc\u062c \u0631\u0627 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc\u200c\u062f\u0647\u062f \u0627\u0645\u0627 \u0628\u0647 \u062a\u062c\u0647\u06cc\u0632\u0627\u062a \u062a\u062e\u0635\u0635\u06cc \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u062f.<\/p>\n<h3>\u0645\u0631\u062d\u0644\u0647 2: \u0627\u0639\u0645\u0627\u0644 \u062d\u0627\u0634\u06cc\u0647\u200c\u0647\u0627\u06cc \u0627\u06cc\u0645\u0646\u06cc<\/h3>\n<p>\u0647\u0631\u06af\u0632 \u06cc\u06a9 MCB \u0628\u0627 \u0638\u0631\u0641\u06cc\u062a \u0642\u0637\u0639 \u062f\u0642\u06cc\u0642\u0627\u064b \u0628\u0631\u0627\u0628\u0631 \u0628\u0627 PSCC \u0645\u062d\u0627\u0633\u0628\u0647 \u0634\u062f\u0647 \u0627\u0646\u062a\u062e\u0627\u0628 \u0646\u06a9\u0646\u06cc\u062f. \u062d\u0627\u0634\u06cc\u0647\u200c\u0647\u0627\u06cc \u0627\u06cc\u0645\u0646\u06cc \u0645\u0646\u0627\u0633\u0628 \u0631\u0627 \u0627\u0639\u0645\u0627\u0644 \u06a9\u0646\u06cc\u062f:<\/p>\n<ul>\n<li><strong>\u062d\u062f\u0627\u0642\u0644 \u062d\u0627\u0634\u06cc\u0647<\/strong>: 20% \u0628\u0627\u0644\u0627\u062a\u0631 \u0627\u0632 PSCC \u0645\u062d\u0627\u0633\u0628\u0647 \u0634\u062f\u0647<\/li>\n<li><strong>\u062d\u0627\u0634\u06cc\u0647 \u062a\u0648\u0635\u06cc\u0647 \u0634\u062f\u0647<\/strong>: 50% \u0628\u0627\u0644\u0627\u062a\u0631 \u0627\u0632 PSCC \u0645\u062d\u0627\u0633\u0628\u0647 \u0634\u062f\u0647 \u0628\u0631\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u062d\u06cc\u0627\u062a\u06cc<\/li>\n<li><strong>\u06af\u0633\u062a\u0631\u0634 \u0622\u06cc\u0646\u062f\u0647<\/strong>: \u0627\u0641\u0632\u0627\u06cc\u0634\u200c\u0647\u0627\u06cc \u0627\u062d\u062a\u0645\u0627\u0644\u06cc \u062f\u0631 \u062c\u0631\u06cc\u0627\u0646 \u062e\u0637\u0627 \u0646\u0627\u0634\u06cc \u0627\u0632 \u0627\u0631\u062a\u0642\u0627\u0621 \u0634\u0631\u06a9\u062a \u0628\u0631\u0642 \u06cc\u0627 \u0627\u0635\u0644\u0627\u062d\u0627\u062a \u0633\u06cc\u0633\u062a\u0645 \u0631\u0627 \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f<\/li>\n<\/ul>\n<p><strong>\u0645\u062b\u0627\u0644<\/strong>: \u0627\u06af\u0631 PSCC \u0645\u062d\u0627\u0633\u0628\u0647 \u0634\u062f\u0647 = 5.5kA \u0627\u0633\u062a\u060c MCB 10kA \u0631\u0627 \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u0646\u06cc\u062f (\u0646\u0647 6kA) \u062a\u0627 \u062d\u0627\u0634\u06cc\u0647 \u0627\u06cc\u0645\u0646\u06cc \u06a9\u0627\u0641\u06cc \u0641\u0631\u0627\u0647\u0645 \u0634\u0648\u062f.<\/p>\n<h3>\u0645\u0631\u062d\u0644\u0647 3: \u062f\u0631 \u0646\u0638\u0631 \u06af\u0631\u0641\u062a\u0646 \u0648\u06cc\u0698\u06af\u06cc\u200c\u0647\u0627\u06cc \u0646\u0635\u0628<\/h3>\n<p>\u0647\u0646\u06af\u0627\u0645 \u0627\u0646\u062a\u062e\u0627\u0628 \u0646\u0647\u0627\u06cc\u06cc\u060c \u0627\u06cc\u0646 \u0639\u0648\u0627\u0645\u0644 \u0631\u0627 \u0627\u0631\u0632\u06cc\u0627\u0628\u06cc \u06a9\u0646\u06cc\u062f:<\/p>\n<p><strong>\u0646\u0632\u062f\u06cc\u06a9\u06cc \u0628\u0647 \u0645\u0646\u0628\u0639<\/strong>: \u0646\u0635\u0628\u200c\u0647\u0627\u06cc\u06cc \u06a9\u0647 \u062f\u0631 \u0641\u0627\u0635\u0644\u0647 50 \u0645\u062a\u0631\u06cc \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631 \u062a\u063a\u0630\u06cc\u0647 \u0642\u0631\u0627\u0631 \u062f\u0627\u0631\u0646\u062f\u060c \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0628\u0647 \u062f\u0644\u06cc\u0644 \u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u06a9\u0645 \u0648 \u062c\u0631\u06cc\u0627\u0646 \u062e\u0637\u0627\u06cc \u0628\u0627\u0644\u0627\u060c \u0628\u0647 \u0631\u062a\u0628\u0647\u200c\u0628\u0646\u062f\u06cc 10kA \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u0646\u062f.<\/p>\n<p><strong>\u0648\u0644\u062a\u0627\u0698 \u0633\u06cc\u0633\u062a\u0645<\/strong>: \u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc \u0633\u0647 \u0641\u0627\u0632 400 \u0648\u0644\u062a \u0639\u0645\u0648\u0645\u0627\u064b \u0628\u0647 \u0638\u0631\u0641\u06cc\u062a \u0642\u0637\u0639 \u0628\u0627\u0644\u0627\u062a\u0631\u06cc \u0646\u0633\u0628\u062a \u0628\u0647 \u0633\u06cc\u0633\u062a\u0645\u200c\u0647\u0627\u06cc \u062a\u06a9 \u0641\u0627\u0632 230 \u0648\u0644\u062a \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u0646\u062f.<\/p>\n<p><strong>\u0646\u0648\u0639 \u0633\u0627\u062e\u062a\u0645\u0627\u0646<\/strong>: \u0646\u0635\u0628\u200c\u0647\u0627\u06cc \u062a\u062c\u0627\u0631\u06cc \u0628\u0627\u06cc\u062f \u0628\u0647 \u0637\u0648\u0631 \u067e\u06cc\u0634\u200c\u0641\u0631\u0636 \u0627\u0632 MCB\u0647\u0627\u06cc 10kA \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u0646\u062f\u060c \u0645\u06af\u0631 \u0627\u06cc\u0646\u06a9\u0647 \u0645\u062d\u0627\u0633\u0628\u0627\u062a \u0628\u0647 \u0637\u0648\u0631 \u0642\u0637\u0639\u06cc \u062b\u0627\u0628\u062a \u06a9\u0646\u062f \u06a9\u0647 6kA \u06a9\u0627\u0641\u06cc \u0627\u0633\u062a.<\/p>\n<p><strong>\u0627\u0644\u0632\u0627\u0645\u0627\u062a \u06a9\u062f<\/strong>: \u06a9\u062f\u0647\u0627\u06cc \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0645\u062d\u0644\u06cc \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u062d\u062f\u0627\u0642\u0644 \u0638\u0631\u0641\u06cc\u062a\u200c\u0647\u0627\u06cc \u0642\u0637\u0639 \u0631\u0627 \u0628\u0631\u0627\u06cc \u0627\u0646\u0648\u0627\u0639 \u0646\u0635\u0628 \u062e\u0627\u0635 \u062a\u0639\u06cc\u06cc\u0646 \u06a9\u0646\u0646\u062f. \u0647\u0645\u06cc\u0634\u0647 \u0627\u0632 \u0627\u0646\u0637\u0628\u0627\u0642 \u0628\u0627 \u0645\u0642\u0631\u0631\u0627\u062a \u0642\u0627\u0628\u0644 \u0627\u062c\u0631\u0627 \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u062d\u0627\u0635\u0644 \u06a9\u0646\u06cc\u062f.<\/p>\n<p><strong>\u062a\u0648\u0633\u0639\u0647\u200c\u0647\u0627\u06cc \u0622\u06cc\u0646\u062f\u0647<\/strong>: \u0627\u06af\u0631 \u06af\u0633\u062a\u0631\u0634 \u0633\u06cc\u0633\u062a\u0645 \u067e\u06cc\u0634\u200c\u0628\u06cc\u0646\u06cc \u0645\u06cc\u200c\u0634\u0648\u062f\u060c \u0638\u0631\u0641\u06cc\u062a \u0642\u0637\u0639 \u0628\u0627\u0644\u0627\u062a\u0631\u06cc \u0631\u0627 \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u0646\u06cc\u062f \u062a\u0627 \u062c\u0631\u06cc\u0627\u0646 \u062e\u0637\u0627\u06cc \u0627\u0641\u0632\u0627\u06cc\u0634 \u06cc\u0627\u0641\u062a\u0647 \u0646\u0627\u0634\u06cc \u0627\u0632 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631\u0647\u0627\u06cc \u0627\u0636\u0627\u0641\u06cc \u06cc\u0627 \u0627\u0631\u062a\u0642\u0627\u0621 \u0634\u0631\u06a9\u062a \u0628\u0631\u0642 \u0631\u0627 \u062f\u0631 \u062e\u0648\u062f \u062c\u0627\u06cc \u062f\u0647\u062f.<\/p>\n<h3>\u0645\u0631\u062d\u0644\u0647 4: \u062a\u0623\u06cc\u06cc\u062f \u0647\u0645\u0627\u0647\u0646\u06af\u06cc \u0648 \u0627\u0646\u062a\u062e\u0627\u0628\u06cc \u0628\u0648\u062f\u0646<\/h3>\n<p>\u0627\u0632 \u0647\u0645\u0627\u0647\u0646\u06af\u06cc \u0645\u0646\u0627\u0633\u0628 \u0628\u06cc\u0646 \u062f\u0633\u062a\u06af\u0627\u0647\u200c\u0647\u0627\u06cc \u062d\u0641\u0627\u0638\u062a\u06cc \u0628\u0627\u0644\u0627\u062f\u0633\u062a \u0648 \u067e\u0627\u06cc\u06cc\u0646\u200c\u062f\u0633\u062a \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u062d\u0627\u0635\u0644 \u06a9\u0646\u06cc\u062f. \u0638\u0631\u0641\u06cc\u062a \u0642\u0637\u0639 MCB \u0628\u0627\u06cc\u062f \u0627\u0632 \u062a\u0631\u06cc\u067e \u0627\u0646\u062a\u062e\u0627\u0628\u06cc \u0628\u0631\u0627\u06cc \u062c\u062f\u0627\u0633\u0627\u0632\u06cc \u062e\u0637\u0627\u0647\u0627 \u062f\u0631 \u067e\u0627\u06cc\u06cc\u0646\u200c\u062a\u0631\u06cc\u0646 \u0633\u0637\u062d \u0645\u0645\u06a9\u0646 \u0628\u062f\u0648\u0646 \u062a\u0623\u062b\u06cc\u0631 \u0628\u0631 \u0645\u062f\u0627\u0631\u0647\u0627\u06cc \u0628\u0627\u0644\u0627\u062f\u0633\u062a \u067e\u0634\u062a\u06cc\u0628\u0627\u0646\u06cc \u06a9\u0646\u062f.<\/p>\n<p>\u0628\u0631\u0627\u06cc \u0631\u0627\u0647\u0646\u0645\u0627\u06cc\u06cc \u062c\u0627\u0645\u0639 \u062f\u0631 \u0645\u0648\u0631\u062f <a href=\"https:\/\/test.viox.com\/fa\/how-to-choose-the-right-miniature-circuit-breaker\/\">\u0627\u0646\u062a\u062e\u0627\u0628 MCB \u0645\u0646\u0627\u0633\u0628<\/a>, \u060c \u0627\u0632 \u062c\u0645\u0644\u0647 \u0645\u0644\u0627\u062d\u0638\u0627\u062a \u0647\u0645\u0627\u0647\u0646\u06af\u06cc\u060c \u0628\u0647 \u0631\u0627\u0647\u0646\u0645\u0627\u06cc \u0627\u0646\u062a\u062e\u0627\u0628 \u062f\u0642\u06cc\u0642 \u0645\u0627 \u0645\u0631\u0627\u062c\u0639\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Decision-flowchart-for-6kA-vs-10kA-selection.webp\" alt=\"MCB breaking capacity selection flowchart for 6kA vs 10kA decision\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">\u0634\u06a9\u0644 5: \u06cc\u06a9 \u0641\u0644\u0648\u0686\u0627\u0631\u062a \u062a\u0635\u0645\u06cc\u0645\u200c\u06af\u06cc\u0631\u06cc \u0628\u0631\u0627\u06cc \u06a9\u0645\u06a9 \u0628\u0647 \u0627\u0646\u062a\u062e\u0627\u0628 \u0628\u06cc\u0646 MCB\u0647\u0627\u06cc 6kA \u0648 10kA \u0628\u0631 \u0627\u0633\u0627\u0633 PSCC\u060c \u0641\u0627\u0635\u0644\u0647 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631 \u0648 \u0648\u0644\u062a\u0627\u0698 \u0633\u06cc\u0633\u062a\u0645.<\/figcaption><\/figure>\n<h2>\u0633\u0646\u0627\u0631\u06cc\u0648\u0647\u0627\u06cc \u06a9\u0627\u0631\u0628\u0631\u062f\u06cc \u062f\u0631 \u062f\u0646\u06cc\u0627\u06cc \u0648\u0627\u0642\u0639\u06cc<\/h2>\n<h3>\u0633\u0646\u0627\u0631\u06cc\u0648 1: \u0628\u0627\u0632\u0633\u0627\u0632\u06cc \u0645\u0633\u06a9\u0648\u0646\u06cc<\/h3>\n<p><strong>\u0648\u0636\u0639\u06cc\u062a<\/strong>: \u06cc\u06a9 \u0635\u0627\u062d\u0628 \u062e\u0627\u0646\u0647 \u062f\u0631 \u062d\u0627\u0644 \u0627\u0631\u062a\u0642\u0627\u0621 \u06cc\u06a9 \u062a\u0627\u0628\u0644\u0648\u06cc \u0628\u0631\u0642 \u062f\u0631 \u06cc\u06a9 \u062e\u0627\u0646\u0647 \u062a\u06a9\u200c\u062e\u0627\u0646\u0648\u0627\u0631\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062f\u0631 \u0633\u0627\u0644 1985 \u0633\u0627\u062e\u062a\u0647 \u0634\u062f\u0647 \u0627\u0633\u062a. \u0627\u06cc\u0646 \u062e\u0627\u0646\u0647 \u062f\u0631 \u0641\u0627\u0635\u0644\u0647 75 \u0645\u062a\u0631\u06cc \u06cc\u06a9 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631 \u062a\u0648\u0632\u06cc\u0639 50kVA\u060c \u0628\u0627 \u06cc\u06a9 \u0633\u0631\u0648\u06cc\u0633 \u062a\u06a9 \u0641\u0627\u0632 230 \u0648\u0644\u062a 100 \u0622\u0645\u067e\u0631 \u0648\u0627\u0642\u0639 \u0634\u062f\u0647 \u0627\u0633\u062a.<\/p>\n<p><strong>\u062a\u062d\u0644\u06cc\u0644<\/strong>:<\/p>\n<ul>\n<li>\u0641\u0627\u0635\u0644\u0647 \u0632\u06cc\u0627\u062f \u0627\u0632 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631 (75 \u0645\u062a\u0631) \u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u0631\u0627 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0645\u06cc\u200c\u062f\u0647\u062f<\/li>\n<li>\u0633\u06cc\u0633\u062a\u0645 \u062a\u06a9 \u0641\u0627\u0632 230 \u0648\u0644\u062a \u062c\u0631\u06cc\u0627\u0646 \u062e\u0637\u0627 \u0631\u0627 \u0645\u062d\u062f\u0648\u062f \u0645\u06cc\u200c\u06a9\u0646\u062f<\/li>\n<li>\u0638\u0631\u0641\u06cc\u062a \u06a9\u0645 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631 (50kVA)<\/li>\n<li>PSCC \u0645\u062d\u0627\u0633\u0628\u0647 \u0634\u062f\u0647 \u2248 3.2kA<\/li>\n<\/ul>\n<p><strong>\u062a\u0635\u0645\u06cc\u0645<\/strong>: MCB\u0647\u0627\u06cc 6kA \u0628\u0631\u0627\u06cc \u0647\u0645\u0647 \u0645\u062f\u0627\u0631\u0647\u0627\u06cc \u0641\u0631\u0639\u06cc \u06a9\u0627\u0641\u06cc \u0647\u0633\u062a\u0646\u062f. \u0628\u0627 \u0627\u06cc\u0646 \u062d\u0627\u0644\u060c \u06a9\u0644\u06cc\u062f \u0627\u0635\u0644\u06cc \u0628\u0627\u06cc\u062f 10kA \u0628\u0627\u0634\u062f \u062a\u0627 \u062d\u0627\u0634\u06cc\u0647 \u0627\u06cc\u0645\u0646\u06cc \u0628\u06cc\u0634\u062a\u0631\u06cc \u0641\u0631\u0627\u0647\u0645 \u0634\u0648\u062f \u0648 \u0627\u0631\u062a\u0642\u0627\u0621 \u0627\u062d\u062a\u0645\u0627\u0644\u06cc \u0634\u0631\u06a9\u062a \u0628\u0631\u0642 \u062f\u0631 \u0622\u06cc\u0646\u062f\u0647 \u0631\u0627 \u062f\u0631 \u062e\u0648\u062f \u062c\u0627\u06cc \u062f\u0647\u062f.<\/p>\n<h3>\u0633\u0646\u0627\u0631\u06cc\u0648 2: \u0633\u0627\u062e\u062a\u0645\u0627\u0646 \u0627\u062f\u0627\u0631\u06cc \u062a\u062c\u0627\u0631\u06cc<\/h3>\n<p><strong>\u0648\u0636\u0639\u06cc\u062a<\/strong>: \u06cc\u06a9 \u0633\u0627\u062e\u062a\u0645\u0627\u0646 \u0627\u062f\u0627\u0631\u06cc 5 \u0637\u0628\u0642\u0647 \u062c\u062f\u06cc\u062f \u062f\u0631 \u06cc\u06a9 \u0645\u0646\u0637\u0642\u0647 \u0634\u0647\u0631\u06cc \u0628\u0627 \u0633\u0631\u0648\u06cc\u0633 \u0633\u0647 \u0641\u0627\u0632 400 \u0648\u0644\u062a\u060c \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631 630kVA \u0648\u0627\u0642\u0639 \u062f\u0631 \u0632\u06cc\u0631\u0632\u0645\u06cc\u0646\u060c \u062a\u0627\u0628\u0644\u0648\u06cc \u0627\u0635\u0644\u06cc \u062f\u0631 \u0641\u0627\u0635\u0644\u0647 15 \u0645\u062a\u0631\u06cc \u0627\u0632 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631.<\/p>\n<p><strong>\u062a\u062d\u0644\u06cc\u0644<\/strong>:<\/p>\n<ul>\n<li>\u0633\u06cc\u0633\u062a\u0645 \u0633\u0647 \u0641\u0627\u0632 400 \u0648\u0644\u062a \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0631\u0627 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0645\u06cc \u062f\u0647\u062f.<\/li>\n<li>\u0638\u0631\u0641\u06cc\u062a \u0628\u0627\u0644\u0627\u06cc \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631 (630kVA)<\/li>\n<li>\u0641\u0627\u0635\u0644\u0647 \u06a9\u0648\u062a\u0627\u0647 \u0627\u0632 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631 (15 \u0645\u062a\u0631)<\/li>\n<li>\u0645\u0648\u0642\u0639\u06cc\u062a \u0634\u0647\u0631\u06cc \u0628\u0627 \u0634\u0628\u06a9\u0647 \u0628\u0631\u0642 \u0642\u0648\u06cc<\/li>\n<li>PSCC \u0645\u062d\u0627\u0633\u0628\u0647 \u0634\u062f\u0647 \u2248 12kA \u062f\u0631 \u062a\u0627\u0628\u0644\u0648\u06cc \u0627\u0635\u0644\u06cc<\/li>\n<\/ul>\n<p><strong>\u062a\u0635\u0645\u06cc\u0645<\/strong>: MCB \u0647\u0627\u06cc 10kA \u0628\u0631\u0627\u06cc \u062a\u0627\u0628\u0644\u0648\u06cc \u0627\u0635\u0644\u06cc \u06a9\u0627\u0641\u06cc \u0646\u06cc\u0633\u062a\u0646\u062f - \u0628\u0647 MCCB \u0647\u0627\u06cc 15kA \u06cc\u0627 25kA \u0627\u0631\u062a\u0642\u0627 \u062f\u0647\u06cc\u062f. \u062a\u0627\u0628\u0644\u0648\u0647\u0627\u06cc \u0641\u0631\u0639\u06cc \u062f\u0631 \u0637\u0628\u0642\u0627\u062a \u0628\u0627\u0644\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u0627\u0632 MCB \u0647\u0627\u06cc 10kA \u0628\u0647 \u062f\u0644\u06cc\u0644 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u0646\u0627\u0634\u06cc \u0627\u0632 \u06a9\u0627\u0628\u0644 \u06a9\u0634\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u0646\u062f.<\/p>\n<h3>\u0633\u0646\u0627\u0631\u06cc\u0648 3: \u062a\u0648\u0633\u0639\u0647 \u062a\u0627\u0633\u06cc\u0633\u0627\u062a \u0635\u0646\u0639\u062a\u06cc<\/h3>\n<p><strong>\u0648\u0636\u0639\u06cc\u062a<\/strong>: \u06cc\u06a9 \u06a9\u0627\u0631\u062e\u0627\u0646\u0647 \u062a\u0648\u0644\u06cc\u062f\u06cc \u0645\u0648\u062c\u0648\u062f \u062f\u0631 \u062d\u0627\u0644 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0631\u062f\u0646 \u06cc\u06a9 \u062e\u0637 \u062a\u0648\u0644\u06cc\u062f \u062c\u062f\u06cc\u062f \u0627\u0633\u062a \u06a9\u0647 \u0628\u0647 \u06cc\u06a9 \u062a\u0627\u0628\u0644\u0648\u06cc \u0633\u0647 \u0641\u0627\u0632 200 \u0622\u0645\u067e\u0631\u06cc \u0627\u0636\u0627\u0641\u06cc \u0646\u06cc\u0627\u0632 \u062f\u0627\u0631\u062f. \u062a\u0627\u0628\u0644\u0648\u06cc \u062c\u062f\u06cc\u062f \u062f\u0631 \u0641\u0627\u0635\u0644\u0647 40 \u0645\u062a\u0631\u06cc \u0627\u0632 \u062a\u0627\u0628\u0644\u0648\u06cc \u062a\u0648\u0632\u06cc\u0639 \u0627\u0635\u0644\u06cc \u0645\u0648\u062c\u0648\u062f \u0642\u0631\u0627\u0631 \u062e\u0648\u0627\u0647\u062f \u06af\u0631\u0641\u062a.<\/p>\n<p><strong>\u062a\u062d\u0644\u06cc\u0644<\/strong>:<\/p>\n<ul>\n<li>\u0633\u06cc\u0633\u062a\u0645 \u0635\u0646\u0639\u062a\u06cc \u0633\u0647 \u0641\u0627\u0632 400 \u0648\u0644\u062a<\/li>\n<li>\u0641\u0627\u0635\u0644\u0647 \u0645\u062a\u0648\u0633\u0637 \u0627\u0632 \u0645\u0646\u0628\u0639 (40 \u0645\u062a\u0631)<\/li>\n<li>\u062a\u0627\u0628\u0644\u0648\u06cc \u0627\u0635\u0644\u06cc \u0645\u0648\u062c\u0648\u062f \u062f\u0627\u0631\u0627\u06cc \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 25kA \u0627\u0633\u062a.<\/li>\n<li>\u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u06a9\u0627\u0628\u0644 \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0631\u0627 \u062f\u0631 \u062a\u0627\u0628\u0644\u0648\u06cc \u062c\u062f\u06cc\u062f \u06a9\u0627\u0647\u0634 \u0645\u06cc \u062f\u0647\u062f.<\/li>\n<li>PSCC \u0645\u062d\u0627\u0633\u0628\u0647 \u0634\u062f\u0647 \u2248 8.5kA \u062f\u0631 \u0645\u062d\u0644 \u062a\u0627\u0628\u0644\u0648\u06cc \u062c\u062f\u06cc\u062f<\/li>\n<\/ul>\n<p><strong>\u062a\u0635\u0645\u06cc\u0645<\/strong>: MCB \u0647\u0627\u06cc 10kA \u0628\u0631\u0627\u06cc \u062a\u0627\u0628\u0644\u0648\u06cc \u062c\u062f\u06cc\u062f \u0645\u0646\u0627\u0633\u0628 \u0647\u0633\u062a\u0646\u062f\u060c \u0628\u0627 \u0647\u0645\u0627\u0647\u0646\u06af\u06cc \u0645\u0646\u0627\u0633\u0628 \u0628\u0627 \u062d\u0641\u0627\u0638\u062a 25kA \u0628\u0627\u0644\u0627\u062f\u0633\u062a. \u0645\u062d\u0627\u0633\u0628\u0627\u062a \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0631\u0627 \u0645\u0633\u062a\u0646\u062f \u06a9\u0646\u06cc\u062f \u0648 \u0633\u0648\u0627\u0628\u0642 \u0631\u0627 \u0628\u0631\u0627\u06cc \u062a\u0648\u0633\u0639\u0647 \u0647\u0627\u06cc \u0622\u06cc\u0646\u062f\u0647 \u0646\u06af\u0647\u062f\u0627\u0631\u06cc \u06a9\u0646\u06cc\u062f.<\/p>\n<h2>\u0627\u0634\u062a\u0628\u0627\u0647\u0627\u062a \u0645\u0639\u0645\u0648\u0644 \u0628\u0631\u0627\u06cc \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u0627\u0632<\/h2>\n<h3>\u0627\u0634\u062a\u0628\u0627\u0647 1: \u0641\u0631\u0636 \u0627\u06cc\u0646\u06a9\u0647 6kA \u0647\u0645\u06cc\u0634\u0647 \u0628\u0631\u0627\u06cc \u0645\u0633\u06a9\u0648\u0646\u06cc \u06a9\u0627\u0641\u06cc \u0627\u0633\u062a<\/h3>\n<p>\u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u0628\u0631\u0642\u06a9\u0627\u0631\u0627\u0646 \u0628\u0647 \u0637\u0648\u0631 \u067e\u06cc\u0634 \u0641\u0631\u0636 \u0627\u0632 MCB \u0647\u0627\u06cc 6kA \u0628\u0631\u0627\u06cc \u062a\u0645\u0627\u0645 \u062a\u0627\u0633\u06cc\u0633\u0627\u062a \u0645\u0633\u06a9\u0648\u0646\u06cc \u0628\u062f\u0648\u0646 \u0645\u062d\u0627\u0633\u0628\u0647 PSCC \u0648\u0627\u0642\u0639\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u0646\u062f. \u0627\u06cc\u0646 \u0641\u0631\u0636 \u062f\u0631 \u0645\u0648\u0627\u0631\u062f \u0632\u06cc\u0631 \u0646\u0627\u062f\u0631\u0633\u062a \u0627\u0633\u062a:<\/p>\n<ul>\n<li>\u0645\u0646\u0627\u0637\u0642 \u0634\u0647\u0631\u06cc \u0628\u0627 \u0634\u0628\u06a9\u0647 \u0647\u0627\u06cc \u0628\u0631\u0642 \u0628\u0627 \u0638\u0631\u0641\u06cc\u062a \u0628\u0627\u0644\u0627<\/li>\n<li>\u062e\u0627\u0646\u0647 \u0647\u0627\u06cc \u0646\u0632\u062f\u06cc\u06a9 \u0628\u0647 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631\u0647\u0627\u06cc \u062a\u0648\u0632\u06cc\u0639<\/li>\n<li>\u062a\u0627\u0628\u0644\u0648\u0647\u0627\u06cc \u0627\u0635\u0644\u06cc \u0628\u0627 \u06a9\u0627\u0628\u0644 \u0647\u0627\u06cc \u0648\u0631\u0648\u062f\u06cc \u0633\u0631\u0648\u06cc\u0633 \u06a9\u0648\u062a\u0627\u0647<\/li>\n<li>\u0628\u0627\u0632\u0633\u0627\u0632\u06cc \u0647\u0627\u06cc\u06cc \u06a9\u0647 \u0632\u06cc\u0631\u0633\u0627\u062e\u062a \u0647\u0627\u06cc \u0628\u0631\u0642 \u0627\u0631\u062a\u0642\u0627 \u06cc\u0627\u0641\u062a\u0647 \u0627\u0646\u062f<\/li>\n<\/ul>\n<p><strong>\u0631\u0627\u0647 \u062d\u0644<\/strong>: \u0647\u0645\u06cc\u0634\u0647 PSCC \u0631\u0627 \u0645\u062d\u0627\u0633\u0628\u0647 \u06cc\u0627 \u0627\u0646\u062f\u0627\u0632\u0647 \u06af\u06cc\u0631\u06cc \u06a9\u0646\u06cc\u062f\u060c \u0628\u0647 \u062e\u0635\u0648\u0635 \u0628\u0631\u0627\u06cc \u062a\u0627\u0628\u0644\u0648\u0647\u0627\u06cc \u0627\u0635\u0644\u06cc \u0648 \u062a\u0627\u0633\u06cc\u0633\u0627\u062a \u0634\u0647\u0631\u06cc.<\/p>\n<h3>\u0627\u0634\u062a\u0628\u0627\u0647 2: \u0646\u0627\u062f\u06cc\u062f\u0647 \u06af\u0631\u0641\u062a\u0646 \u0636\u0631\u0628 \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0633\u0647 \u0641\u0627\u0632<\/h3>\n<p>\u0645\u062d\u0627\u0633\u0628\u0627\u062a \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u062a\u06a9 \u0641\u0627\u0632 \u0628\u0631\u0627\u06cc \u0633\u06cc\u0633\u062a\u0645 \u0647\u0627\u06cc \u0633\u0647 \u0641\u0627\u0632 \u06a9\u0627\u0631\u0628\u0631\u062f \u0646\u062f\u0627\u0631\u062f. \u0636\u0631\u06cc\u0628 \u221a3 \u0648 \u0648\u0644\u062a\u0627\u0698 \u062e\u0637 \u0628\u0647 \u062e\u0637 \u0628\u0647 \u0637\u0648\u0631 \u0642\u0627\u0628\u0644 \u062a\u0648\u062c\u0647\u06cc \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0645\u0648\u062c\u0648\u062f \u0631\u0627 \u0627\u0641\u0632\u0627\u06cc\u0634 \u0645\u06cc \u062f\u0647\u0646\u062f.<\/p>\n<p><strong>\u0631\u0627\u0647 \u062d\u0644<\/strong>: \u0627\u0632 \u0641\u0631\u0645\u0648\u0644 \u0647\u0627\u06cc \u0645\u0646\u0627\u0633\u0628 \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0633\u0647 \u0641\u0627\u0632 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u06a9\u0646\u06cc\u062f \u0648 \u062a\u0645\u0627\u0645 \u0627\u0646\u0648\u0627\u0639 \u062e\u0637\u0627 (\u0633\u0647 \u0641\u0627\u0632\u060c \u062e\u0637 \u0628\u0647 \u062e\u0637\u060c \u062e\u0637 \u0628\u0647 \u0632\u0645\u06cc\u0646) \u0631\u0627 \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f.<\/p>\n<h3>\u0627\u0634\u062a\u0628\u0627\u0647 3: \u0639\u062f\u0645 \u062a\u0648\u062c\u0647 \u0628\u0647 \u062a\u0648\u0633\u0639\u0647 \u0622\u06cc\u0646\u062f\u0647<\/h3>\n<p>\u0633\u06cc\u0633\u062a\u0645 \u0647\u0627\u06cc \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0628\u0627 \u06af\u0630\u0634\u062a \u0632\u0645\u0627\u0646 \u062a\u06a9\u0627\u0645\u0644 \u0645\u06cc \u06cc\u0627\u0628\u0646\u062f. \u0627\u0631\u062a\u0642\u0627\u0621 \u0628\u0631\u0642\u060c \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631\u0647\u0627\u06cc \u0627\u0636\u0627\u0641\u06cc \u06cc\u0627 \u0627\u0635\u0644\u0627\u062d\u0627\u062a \u0633\u06cc\u0633\u062a\u0645 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0645\u0648\u062c\u0648\u062f \u0631\u0627 \u0641\u0631\u0627\u062a\u0631 \u0627\u0632 \u0645\u062d\u0627\u0633\u0628\u0627\u062a \u0627\u0648\u0644\u06cc\u0647 \u0627\u0641\u0632\u0627\u06cc\u0634 \u062f\u0647\u0646\u062f.<\/p>\n<p><strong>\u0631\u0627\u0647 \u062d\u0644<\/strong>: \u062d\u0627\u0634\u06cc\u0647 \u0647\u0627\u06cc \u0627\u06cc\u0645\u0646\u06cc \u0631\u0627 \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f \u0648 \u0647\u0646\u06af\u0627\u0645 \u0646\u0632\u062f\u06cc\u06a9 \u0634\u062f\u0646 PSCC \u0628\u0647 \u062d\u062f \u067e\u0627\u06cc\u06cc\u0646 \u062a\u0631\u060c \u0638\u0631\u0641\u06cc\u062a \u0642\u0637\u0639 \u0628\u0627\u0644\u0627\u062a\u0631 \u0628\u0639\u062f\u06cc \u0631\u0627 \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u0646\u06cc\u062f.<\/p>\n<h3>\u0627\u0634\u062a\u0628\u0627\u0647 4: \u062a\u0631\u06a9\u06cc\u0628 \u0646\u0627\u0645\u0646\u0627\u0633\u0628 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f\u0647\u0627<\/h3>\n<p>\u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 MCB \u0647\u0627\u06cc \u0645\u0633\u06a9\u0648\u0646\u06cc IEC 60898-1 \u062f\u0631 \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u0635\u0646\u0639\u062a\u06cc \u06a9\u0647 \u062a\u0648\u0633\u0637 IEC 60947-2 \u0627\u062f\u0627\u0631\u0647 \u0645\u06cc \u0634\u0648\u0646\u062f\u060c \u0645\u0633\u0627\u0626\u0644 \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 \u0627\u0646\u0637\u0628\u0627\u0642 \u0648 \u0627\u06cc\u0645\u0646\u06cc \u0631\u0627 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p><strong>\u0631\u0627\u0647 \u062d\u0644<\/strong>: \u062f\u0631\u06a9 \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u06a9\u062f\u0627\u0645 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u0628\u0631\u0627\u06cc \u0646\u0635\u0628 \u0634\u0645\u0627 \u0627\u0639\u0645\u0627\u0644 \u0645\u06cc \u0634\u0648\u062f \u0648 \u062f\u0633\u062a\u06af\u0627\u0647 \u0647\u0627\u06cc \u062f\u0627\u0631\u0627\u06cc \u0631\u062a\u0628\u0647 \u0645\u0646\u0627\u0633\u0628 \u0631\u0627 \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u0646\u06cc\u062f. \u0628\u0631\u0627\u06cc \u0627\u0637\u0644\u0627\u0639\u0627\u062a \u0628\u06cc\u0634\u062a\u0631 \u062f\u0631 \u0645\u0648\u0631\u062f <a href=\"https:\/\/test.viox.com\/fa\/types-of-circuit-breakers\/\">\u0627\u0646\u0648\u0627\u0639 \u0645\u062e\u062a\u0644\u0641 \u0642\u0637\u0639 \u06a9\u0646\u0646\u062f\u0647 \u0647\u0627\u06cc \u0645\u062f\u0627\u0631<\/a> \u0648 \u06a9\u0627\u0631\u0628\u0631\u062f\u0647\u0627\u06cc \u0622\u0646\u0647\u0627\u060c \u0628\u0647 \u0631\u0627\u0647\u0646\u0645\u0627\u06cc \u062c\u0627\u0645\u0639 \u0645\u0627 \u0645\u0631\u0627\u062c\u0639\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n<h2>\u062a\u062c\u0632\u06cc\u0647 \u0648 \u062a\u062d\u0644\u06cc\u0644 \u0647\u0632\u06cc\u0646\u0647-\u0641\u0627\u06cc\u062f\u0647: \u0633\u0631\u0645\u0627\u06cc\u0647 \u06af\u0630\u0627\u0631\u06cc 6kA \u062f\u0631 \u0645\u0642\u0627\u0628\u0644 10kA<\/h2>\n<p>\u062a\u0641\u0627\u0648\u062a \u0642\u06cc\u0645\u062a \u0628\u06cc\u0646 MCB \u0647\u0627\u06cc 6kA \u0648 10kA \u0645\u0639\u0645\u0648\u0644\u0627\u064b 10-20\u066a \u0627\u0633\u062a\u060c \u06cc\u06a9 \u0633\u0631\u0645\u0627\u06cc\u0647 \u06af\u0630\u0627\u0631\u06cc \u062d\u062f\u0627\u0642\u0644\u06cc \u062f\u0631 \u0645\u0642\u0627\u06cc\u0633\u0647 \u0628\u0627 \u0639\u0648\u0627\u0642\u0628 \u062d\u0641\u0627\u0638\u062a \u0646\u0627\u06a9\u0627\u0641\u06cc. \u0627\u06cc\u0646 \u0639\u0648\u0627\u0645\u0644 \u0631\u0627 \u062f\u0631 \u0646\u0638\u0631 \u0628\u06af\u06cc\u0631\u06cc\u062f:<\/p>\n<p><strong>\u0647\u0632\u06cc\u0646\u0647 \u0647\u0627\u06cc \u0645\u0633\u062a\u0642\u06cc\u0645<\/strong>:<\/p>\n<ul>\n<li>MCB 6kA: \u0642\u06cc\u0645\u062a \u067e\u0627\u06cc\u0647<\/li>\n<li>MCB 10kA: \u062d\u0642 \u0628\u06cc\u0645\u0647 +10-20\u066a<\/li>\n<li>\u0646\u06cc\u0631\u0648\u06cc \u06a9\u0627\u0631 \u0646\u0635\u0628: \u0628\u0631\u0627\u06cc \u0647\u0631 \u062f\u0648 \u0631\u062a\u0628\u0647 \u06cc\u06a9\u0633\u0627\u0646 \u0627\u0633\u062a<\/li>\n<\/ul>\n<p><strong>\u0647\u0632\u06cc\u0646\u0647 \u0647\u0627\u06cc \u0631\u06cc\u0633\u06a9 \u06a9\u0645\u0628\u0648\u062f \u0627\u0646\u062f\u0627\u0632\u0647<\/strong>:<\/p>\n<ul>\n<li>\u0622\u0633\u06cc\u0628 \u062a\u062c\u0647\u06cc\u0632\u0627\u062a \u0646\u0627\u0634\u06cc \u0627\u0632 \u062d\u0641\u0627\u0638\u062a \u0646\u0627\u06a9\u0627\u0641\u06cc \u062f\u0631 \u0628\u0631\u0627\u0628\u0631 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647<\/li>\n<li>\u062e\u0633\u0627\u0631\u062a \u0622\u062a\u0634 \u0633\u0648\u0632\u06cc \u0648 \u0645\u0633\u0626\u0648\u0644\u06cc\u062a<\/li>\n<li>\u062c\u0631\u06cc\u0645\u0647 \u0647\u0627\u06cc \u0646\u0642\u0636 \u06a9\u062f<\/li>\n<li>\u067e\u06cc\u0627\u0645\u062f\u0647\u0627\u06cc \u0628\u06cc\u0645\u0647<\/li>\n<li>\u062e\u0631\u0627\u0628\u06cc \u0648 \u0648\u0642\u0641\u0647 \u062f\u0631 \u06a9\u0633\u0628 \u0648 \u06a9\u0627\u0631<\/li>\n<li>\u0647\u0632\u06cc\u0646\u0647 \u0647\u0627\u06cc \u062c\u0627\u06cc\u06af\u0632\u06cc\u0646\u06cc \u067e\u0633 \u0627\u0632 \u062e\u0631\u0627\u0628\u06cc<\/li>\n<\/ul>\n<p><strong>\u0627\u0631\u0632\u0634 \u0628\u0644\u0646\u062f \u0645\u062f\u062a \u0627\u0646\u062f\u0627\u0632\u0647 \u06af\u06cc\u0631\u06cc \u0645\u0646\u0627\u0633\u0628<\/strong>:<\/p>\n<ul>\n<li>\u062d\u0627\u0634\u06cc\u0647 \u0627\u06cc\u0645\u0646\u06cc \u0627\u0641\u0632\u0627\u06cc\u0634 \u06cc\u0627\u0641\u062a\u0647<\/li>\n<li>\u0633\u0627\u0632\u06af\u0627\u0631\u06cc \u0628\u0627 \u0631\u0634\u062f \u0633\u06cc\u0633\u062a\u0645 \u062f\u0631 \u0622\u06cc\u0646\u062f\u0647<\/li>\n<li>\u06a9\u0627\u0647\u0634 \u0642\u0631\u0627\u0631 \u06af\u0631\u0641\u062a\u0646 \u062f\u0631 \u0645\u0639\u0631\u0636 \u0645\u0633\u0626\u0648\u0644\u06cc\u062a<\/li>\n<li>\u0628\u0647\u0628\u0648\u062f \u0646\u0631\u062e \u0628\u06cc\u0645\u0647<\/li>\n<li>\u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u0627\u0632 \u0627\u0646\u0637\u0628\u0627\u0642 \u0628\u0627 \u06a9\u062f<\/li>\n<li>\u0627\u0641\u0632\u0627\u06cc\u0634 \u0637\u0648\u0644 \u0639\u0645\u0631 \u062a\u062c\u0647\u06cc\u0632\u0627\u062a<\/li>\n<\/ul>\n<p><strong>\u062a\u0648\u0635\u06cc\u0647 \u062d\u0631\u0641\u0647\u200c\u0627\u06cc<\/strong>: \u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u0645\u062d\u0627\u0633\u0628\u0627\u062a PSCC \u062f\u0631 \u0645\u062d\u062f\u0648\u062f\u0647 1kA \u0627\u0632 \u062d\u062f \u067e\u0627\u06cc\u06cc\u0646 \u062a\u0631 \u0642\u0631\u0627\u0631 \u0645\u06cc \u06af\u06cc\u0631\u0646\u062f\u060c \u0647\u0645\u06cc\u0634\u0647 \u0638\u0631\u0641\u06cc\u062a \u0642\u0637\u0639 \u0628\u0627\u0644\u0627\u062a\u0631 \u0631\u0627 \u0627\u0646\u062a\u062e\u0627\u0628 \u06a9\u0646\u06cc\u062f. \u062a\u0641\u0627\u0648\u062a \u0647\u0632\u06cc\u0646\u0647 \u062d\u062f\u0627\u0642\u0644\u060c \u0645\u0632\u0627\u06cc\u0627\u06cc \u0627\u06cc\u0645\u0646\u06cc \u0648 \u0642\u0627\u0628\u0644\u06cc\u062a \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u0642\u0627\u0628\u0644 \u062a\u0648\u062c\u0647\u06cc \u0631\u0627 \u0627\u0631\u0627\u0626\u0647 \u0645\u06cc \u062f\u0647\u062f.<\/p>\n<h2>\u0633\u0648\u0627\u0644\u0627\u062a \u0645\u062a\u062f\u0627\u0648\u0644<\/h2>\n<h3>What happens if I install a 6kA MCB where 10kA is required?<\/h3>\n<p>\u0646\u0635\u0628 \u06cc\u06a9 MCB \u0628\u0627 \u0638\u0631\u0641\u06cc\u062a \u0642\u0637\u0639 \u0646\u0627\u06a9\u0627\u0641\u06cc \u06cc\u06a9 \u062e\u0637\u0631 \u0627\u06cc\u0645\u0646\u06cc \u062c\u062f\u06cc \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u062f. \u062f\u0631 \u0637\u0648\u0644 \u06cc\u06a9 \u0634\u0631\u0627\u06cc\u0637 \u062e\u0637\u0627 \u06a9\u0647 \u0627\u0632 \u0631\u062a\u0628\u0647 MCB \u0641\u0631\u0627\u062a\u0631 \u0645\u06cc \u0631\u0648\u062f\u060c \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u062f\u0633\u062a\u06af\u0627\u0647 \u0646\u062a\u0648\u0627\u0646\u062f \u062c\u0631\u06cc\u0627\u0646 \u0631\u0627 \u0642\u0637\u0639 \u06a9\u0646\u062f\u060c \u06a9\u0647 \u0645\u0646\u062c\u0631 \u0628\u0647 \u062c\u0648\u0634 \u062e\u0648\u0631\u062f\u0646 \u06a9\u0646\u062a\u0627\u06a9\u062a\u060c \u062d\u0648\u0627\u062f\u062b \u0642\u0648\u0633 \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc\u060c \u067e\u0627\u0631\u06af\u06cc \u0645\u062d\u0641\u0638\u0647 \u06cc\u0627 \u0622\u062a\u0634 \u0633\u0648\u0632\u06cc \u0645\u06cc \u0634\u0648\u062f. \u0638\u0631\u0641\u06cc\u062a \u0642\u0637\u0639 MCB \u0647\u0645\u06cc\u0634\u0647 \u0628\u0627\u06cc\u062f \u0627\u0632 \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0627\u062d\u062a\u0645\u0627\u0644\u06cc \u062f\u0631 \u0646\u0642\u0637\u0647 \u0646\u0635\u0628 \u0622\u0646 \u0628\u0627 \u062d\u0627\u0634\u06cc\u0647 \u0647\u0627\u06cc \u0627\u06cc\u0645\u0646\u06cc \u0645\u0646\u0627\u0633\u0628 \u0628\u06cc\u0634\u062a\u0631 \u0628\u0627\u0634\u062f.<\/p>\n<h3>Can I use 10kA MCBs in all residential installations for extra safety?<\/h3>\n<p>Yes, using 10kA MCBs in residential installations where 6kA would be adequate provides additional safety margin and future-proofs the installation against utility upgrades or system modifications. The cost premium is minimal (10-20%) and offers substantial benefits. However, proper PSCC calculation remains essential to ensure even 10kA is adequate for locations very close to transformers.<\/p>\n<h3>How do I calculate prospective short-circuit current (PSCC) for my installation?<\/h3>\n<p>PSCC \u0631\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0641\u0631\u0645\u0648\u0644 \u0632\u06cc\u0631 \u0645\u062d\u0627\u0633\u0628\u0647 \u06a9\u0646\u06cc\u062f: PSCC = V \/ Z_total\u060c \u06a9\u0647 \u062f\u0631 \u0622\u0646 V \u0648\u0644\u062a\u0627\u0698 \u0633\u06cc\u0633\u062a\u0645 \u0648 Z_total \u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u06a9\u0644 \u0627\u0632 \u0645\u0646\u0628\u0639 \u062a\u0627 \u0646\u0642\u0637\u0647 \u062e\u0637\u0627 \u0627\u0633\u062a. \u0628\u0631\u0627\u06cc \u0645\u0631\u0627\u062d\u0644 \u0645\u062d\u0627\u0633\u0628\u0647 \u06af\u0627\u0645 \u0628\u0647 \u06af\u0627\u0645 \u062f\u0642\u06cc\u0642\u060c \u0627\u0632 \u062c\u0645\u0644\u0647 \u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631\u060c \u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u06a9\u0627\u0628\u0644 \u0648 \u0627\u0645\u067e\u062f\u0627\u0646\u0633 \u0645\u0646\u0628\u0639 \u0628\u0631\u0642\u060c \u0628\u0647 \u0631\u0627\u0647\u0646\u0645\u0627\u06cc \u062c\u0627\u0645\u0639 \u0645\u0627 \u062f\u0631 \u0645\u0648\u0631\u062f <a href=\"https:\/\/test.viox.com\/fa\/how-to-calculate-short-circuit-current-for-mcb\/\">\u0645\u062d\u0627\u0633\u0628\u0647 \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0628\u0631\u0627\u06cc \u0627\u0646\u062a\u062e\u0627\u0628 MCB<\/a>.<\/p>\n<h3>What is the difference between Icn and Icu ratings?<\/h3>\n<p>Icn (\u0638\u0631\u0641\u06cc\u062a \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0646\u0627\u0645\u06cc) \u062f\u0631 IEC 60898-1 \u0628\u0631\u0627\u06cc MCB \u0647\u0627\u06cc \u0645\u0633\u06a9\u0648\u0646\u06cc \u0645\u0634\u062e\u0635 \u0634\u062f\u0647 \u0627\u0633\u062a \u0648 \u0646\u0634\u0627\u0646 \u062f\u0647\u0646\u062f\u0647 \u062d\u062f\u0627\u06a9\u062b\u0631 \u062c\u0631\u06cc\u0627\u0646\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062f\u0633\u062a\u06af\u0627\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0645\u0637\u0627\u0628\u0642 \u0628\u0627 \u062a\u0648\u0627\u0644\u06cc \u0622\u0632\u0645\u0627\u06cc\u0634 \u0627\u0633\u062a\u0627\u0646\u062f\u0627\u0631\u062f \u0642\u0637\u0639 \u06a9\u0646\u062f. Icu (\u0638\u0631\u0641\u06cc\u062a \u0642\u0637\u0639 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u0646\u0647\u0627\u06cc\u06cc) \u062f\u0631 IEC 60947-2 \u0628\u0631\u0627\u06cc MCCB \u0647\u0627\u06cc \u0635\u0646\u0639\u062a\u06cc \u0645\u0634\u062e\u0635 \u0634\u062f\u0647 \u0627\u0633\u062a \u0648 \u0646\u0634\u0627\u0646 \u062f\u0647\u0646\u062f\u0647 \u062d\u062f\u0627\u06a9\u062b\u0631 \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647\u06cc \u0627\u0633\u062a \u06a9\u0647 \u062f\u0633\u062a\u06af\u0627\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0642\u0637\u0639 \u06a9\u0646\u062f\u060c \u0627\u06af\u0631\u0686\u0647 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u067e\u0633 \u0627\u0632 \u0622\u0646 \u0639\u0645\u0644\u06a9\u0631\u062f\u06cc \u0628\u0627\u0642\u06cc \u0646\u0645\u0627\u0646\u062f. \u0628\u0631\u0627\u06cc \u062c\u0632\u0626\u06cc\u0627\u062a \u0628\u06cc\u0634\u062a\u0631 \u062f\u0631 \u0645\u0648\u0631\u062f \u0627\u06cc\u0646 \u0648 \u0633\u0627\u06cc\u0631 <a href=\"https:\/\/test.viox.com\/fa\/understanding-the-ka-rating-on-circuit-breakers\/\">\u0631\u062a\u0628\u0647 \u0628\u0646\u062f\u06cc \u0642\u0637\u0639 \u06a9\u0646\u0646\u062f\u0647 \u0647\u0627\u06cc \u0645\u062f\u0627\u0631<\/a>, \u060c \u0628\u0647 \u0631\u0627\u0647\u0646\u0645\u0627\u0647\u0627\u06cc \u0641\u0646\u06cc \u0645\u0627 \u0645\u0631\u0627\u062c\u0639\u0647 \u06a9\u0646\u06cc\u062f.<\/p>\n<h3>Do I need higher breaking capacity for three-phase systems?<\/h3>\n<p>Yes, three-phase systems typically require higher breaking capacity MCBs than single-phase systems due to higher system voltage (400V vs 230V), multiple current paths during faults, and generally larger transformer capacities. A three-phase fault can produce significantly higher current than a single-phase fault in the same system. Always calculate PSCC specifically for three-phase configurations using appropriate formulas.<\/p>\n<h3>Can I use cascading or backup protection to reduce breaking capacity requirements?<\/h3>\n<p>Cascading (also called backup protection) allows a downstream MCB with lower breaking capacity to be protected by an upstream device with higher capacity. This technique can reduce costs in large installations, but it must be explicitly verified and documented by the manufacturer. Never assume cascading protection without manufacturer coordination tables. For critical applications, always select MCBs with adequate independent breaking capacity.<\/p>\n<h3>How often should I verify breaking capacity remains adequate?<\/h3>\n<p>\u0647\u0631 \u0632\u0645\u0627\u0646 \u06a9\u0647 \u0645\u0648\u0627\u0631\u062f \u0632\u06cc\u0631 \u0631\u062e \u062f\u0627\u062f\u060c \u0627\u0632 \u06a9\u0627\u0641\u06cc \u0628\u0648\u062f\u0646 \u0638\u0631\u0641\u06cc\u062a \u0642\u0637\u0639 \u0627\u0637\u0645\u06cc\u0646\u0627\u0646 \u062d\u0627\u0635\u0644 \u06a9\u0646\u06cc\u062f:<\/p>\n<ul>\n<li>\u0632\u06cc\u0631\u0633\u0627\u062e\u062a \u0647\u0627\u06cc \u0628\u0631\u0642 \u0627\u0631\u062a\u0642\u0627 \u0645\u06cc \u06cc\u0627\u0628\u0646\u062f (\u062a\u0631\u0627\u0646\u0633\u0641\u0648\u0631\u0645\u0627\u062a\u0648\u0631\u0647\u0627\u06cc \u062c\u062f\u06cc\u062f\u060c \u0627\u0631\u062a\u0642\u0627\u0621 \u0633\u0631\u0648\u06cc\u0633)<\/li>\n<li>\u0633\u06cc\u0633\u062a\u0645 \u0647\u0627\u06cc \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0633\u0627\u062e\u062a\u0645\u0627\u0646 \u06af\u0633\u062a\u0631\u0634 \u06cc\u0627 \u0627\u0635\u0644\u0627\u062d \u0645\u06cc \u0634\u0648\u0646\u062f<\/li>\n<li>\u0628\u0627\u0631\u0647\u0627\u06cc \u0627\u0636\u0627\u0641\u06cc \u0645\u062a\u0635\u0644 \u0645\u06cc \u0634\u0648\u0646\u062f \u06a9\u0647 \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u0631 \u062c\u0631\u06cc\u0627\u0646 \u0627\u062a\u0635\u0627\u0644 \u06a9\u0648\u062a\u0627\u0647 \u062a\u0623\u062b\u06cc\u0631 \u0628\u06af\u0630\u0627\u0631\u0646\u062f<\/li>\n<li>\u06a9\u062f\u0647\u0627\u06cc \u0627\u0644\u06a9\u062a\u0631\u06cc\u06a9\u06cc \u0628\u0627 \u0627\u0644\u0632\u0627\u0645\u0627\u062a \u062c\u062f\u06cc\u062f \u0628\u0647 \u0631\u0648\u0632 \u0645\u06cc \u0634\u0648\u0646\u062f<\/li>\n<li>\u0628\u0627\u0632\u0633\u0627\u0632\u06cc \u0647\u0627\u06cc \u0639\u0645\u062f\u0647 \u062f\u0631 \u0641\u0627\u0635\u0644\u0647 50 \u0645\u062a\u0631\u06cc \u062a\u0627\u0628\u0644\u0648\u06cc \u0628\u0631\u0642 \u0631\u062e \u0645\u06cc \u062f\u0647\u062f<\/li>\n<li>As part of routine electrical safety inspections (every 5-10 years minimum)<\/li>\n<\/ul>\n<p>Maintain documentation of PSCC calculations and update them when system changes occur.<\/p>\n<\/div>\n<div class=\"simg-pop-btn\" style=\"top: 731.656px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 731.656px; left: 14px; display: none;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Key Takeaways Breaking capacity (Icn\/Icu) represents the maximum fault current an MCB can safely interrupt without damage or failure, measured in kiloamperes (kA). 6kA MCBs are typically sufficient for residential installations where prospective short-circuit current (PSCC) remains below 5kA, particularly in locations distant from supply transformers. 10kA MCBs are recommended for commercial applications, urban installations, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":21405,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-21404","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/test.viox.com\/fa\/wp-json\/wp\/v2\/posts\/21404","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.viox.com\/fa\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test.viox.com\/fa\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test.viox.com\/fa\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test.viox.com\/fa\/wp-json\/wp\/v2\/comments?post=21404"}],"version-history":[{"count":2,"href":"https:\/\/test.viox.com\/fa\/wp-json\/wp\/v2\/posts\/21404\/revisions"}],"predecessor-version":[{"id":21407,"href":"https:\/\/test.viox.com\/fa\/wp-json\/wp\/v2\/posts\/21404\/revisions\/21407"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/fa\/wp-json\/wp\/v2\/media\/21405"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/fa\/wp-json\/wp\/v2\/media?parent=21404"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/fa\/wp-json\/wp\/v2\/categories?post=21404"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/fa\/wp-json\/wp\/v2\/tags?post=21404"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}