{"id":21463,"date":"2026-01-27T01:13:20","date_gmt":"2026-01-26T17:13:20","guid":{"rendered":"https:\/\/viox.com\/?p=21463"},"modified":"2026-01-27T01:13:25","modified_gmt":"2026-01-26T17:13:25","slug":"max-distance-12-2-wire-20-amp-breaker","status":"publish","type":"post","link":"https:\/\/test.viox.com\/ja\/max-distance-12-2-wire-20-amp-breaker\/","title":{"rendered":"20\u30a2\u30f3\u30da\u30a2\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u306712\/2\u30ef\u30a4\u30e4\u30fc\u306f\u3069\u3053\u307e\u3067\u914d\u7dda\u3067\u304d\u307e\u3059\u304b\uff1f"},"content":{"rendered":"<div class=\"product-intro\">\n<h2>\u8981\u70b9<\/h2>\n<ul>\n<li><strong>\u6a19\u6e96\u8ddd\u96e2<\/strong>\uff1a20\u30a2\u30f3\u30da\u30a2\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u4e0a\u306e12\/2\u30ef\u30a4\u30e4\u30fc\u306f\u5b89\u5168\u306b <strong>50\uff5e60\u30d5\u30a3\u30fc\u30c8<\/strong> \u5168\u8ca0\u8377\u3067\u3001NEC\u63a8\u5968\u306e3%\u306e\u96fb\u5727\u964d\u4e0b\u3092\u7dad\u6301\u3057\u306a\u304c\u3089\u914d\u7dda\u53ef\u80fd<\/li>\n<li><strong>\u6700\u5927\u5b89\u5168\u8ddd\u96e2<\/strong>\uff1a\u6700\u5927 <strong>93\u30d5\u30a3\u30fc\u30c8<\/strong> \u306f\u3001240V\u30673%\u306e\u96fb\u5727\u964d\u4e0b\u3067\u53ef\u80fd\u3067\u3059\u304c\u3001 <strong>50\uff5e57\u30d5\u30a3\u30fc\u30c8<\/strong> 120V\u306e\u5834\u5408<\/li>\n<li><strong>\u8ca0\u8377\u306e\u91cd\u8981\u6027<\/strong>\uff1a\u5b9f\u969b\u306b\u4f7f\u7528\u53ef\u80fd\u306a\u8ddd\u96e2\u306f\u3001\u63a5\u7d9a\u3055\u308c\u305f\u8ca0\u8377\u306b\u5927\u304d\u304f\u4f9d\u5b58\u3057\u307e\u3059\u3002\u30a2\u30f3\u30da\u30a2\u6570\u304c\u4f4e\u3044\u307b\u3069\u3001\u914d\u7dda\u8ddd\u96e2\u3092\u9577\u304f\u3067\u304d\u307e\u3059\u3002<\/li>\n<li><strong>\u5b89\u5168\u4e0a\u306e\u91cd\u8981\u4e8b\u9805<\/strong>\uff1a\u63a8\u5968\u8ddd\u96e2\u3092\u8d85\u3048\u308b\u3068\u3001\u6545\u969c\u30eb\u30fc\u30d7\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u304c\u5897\u52a0\u3057\u3001\u77ed\u7d61\u6642\u306b\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u30c8\u30ea\u30c3\u30d7\u3057\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u898f\u5247<\/strong>\uff1a20\u30a2\u30f3\u30da\u30a2\u306760\u30d5\u30a3\u30fc\u30c8\u3092\u8d85\u3048\u308b\u914d\u7dda\u3092\u884c\u3046\u5834\u5408\u306f\u300110 AWG\u306b\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3057\u3066\u304f\u3060\u3055\u3044\u3002100\u30d5\u30a3\u30fc\u30c8\u3092\u8d85\u3048\u308b\u5834\u5408\u306f\u30018 AWG\u30ef\u30a4\u30e4\u30fc\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<\/ul>\n<hr \/>\n<h2>2\u3064\u306e\u5236\u9650\u306e\u7406\u89e3\uff1a\u8a31\u5bb9\u96fb\u6d41\u3068\u96fb\u5727\u964d\u4e0b<\/h2>\n<p>\u96fb\u6c17\u6280\u5e2b\u3084\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u300120\u30a2\u30f3\u30da\u30a2\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u306712\/2\u30ef\u30a4\u30e4\u30fc\u3092\u3069\u3053\u307e\u3067\u914d\u7dda\u3067\u304d\u308b\u304b\u306b\u3064\u3044\u3066\u8b70\u8ad6\u3059\u308b\u3068\u304d\u3001\u5f7c\u3089\u306f\u5b9f\u969b\u306b\u306f <strong>2\u3064\u306e\u5168\u304f\u7570\u306a\u308b\u5236\u9650\u306b\u5bfe\u51e6\u3057\u3066\u3044\u307e\u3059\u3002<\/strong>:<\/p>\n<h3>\u71b1\u7684\u5236\u9650\uff08\u8a31\u5bb9\u96fb\u6d41\uff09<\/h3>\n<p>NEC\u8868310.16\u306b\u3088\u308b\u3068\u3001, <strong>12 AWG\u306e\u9285\u7dda\u306f20\u30a2\u30f3\u30da\u30a2\u5b9a\u683c\u3067\u3059<\/strong> 60\u00b0C\u3067\u300190\u00b0C\u306725\u30a2\u30f3\u30da\u30a2\uff08THHN\/THWN-2\u7d76\u7e01\u306e\u5834\u5408\uff09\u3002\u3053\u306e\u5b9a\u683c\u306b\u3088\u308a\u3001\u30ef\u30a4\u30e4\u30fc\u304c\u904e\u71b1\u3057\u3066\u7d76\u7e01\u304c\u6eb6\u3051\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\uff08\u9577\u3055\u306b\u95a2\u4fc2\u306a\u304f\uff09\u3002.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Close-up-of-12-AWG-wire-with-multimeter-and-circuit-breaker.webp\" alt=\"Close-up of 12 AWG copper wire with multimeter measuring 20A and circuit breaker background\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 5px;\">\u56f31\uff1a\u30de\u30eb\u30c1\u30e1\u30fc\u30bf\u30fc\u3068\u4e26\u3093\u306720A\u306e\u5bb9\u91cf\u3092\u78ba\u8a8d\u3059\u308b12 AWG\u30ef\u30a4\u30e4\u30fc\u306e\u30af\u30ed\u30fc\u30ba\u30a2\u30c3\u30d7\u3068 <a href=\"https:\/\/test.viox.com\/ja\/mcb\/\">\u6f0f\u96fb\u30d6\u30ec\u30fc\u30ab\u30fc<\/a>, \u3001\u71b1\u7684\u5236\u9650\u306e\u57fa\u672c\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002.<\/figcaption><\/figure>\n<h3>\u6027\u80fd\u5236\u9650\uff08\u96fb\u5727\u964d\u4e0b\uff09<\/h3>\n<p><strong>\u96fb\u5727\u964d\u4e0b\u306f\u3001\u96fb\u6c17\u7684\u6027\u80fd\u306e\u9759\u304b\u306a\u308b\u6bba\u4eba\u8005\u3067\u3059\u3002.<\/strong> \u96fb\u6d41\u304c\u30ef\u30a4\u30e4\u30fc\u3092\u6d41\u308c\u308b\u3068\u3001\u62b5\u6297\u306b\u3088\u308a\u96fb\u5727\u304c\u4f4e\u4e0b\u3057\u307e\u3059\u3002NEC\u306f\u3001\u96fb\u5727\u964d\u4e0b\u3092\u4ee5\u4e0b\u306b\u5236\u9650\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u6700\u59273%<\/strong> \u5206\u5c90\u56de\u8def\u306e\u5834\u5408\uff08NEC 210.19(A)(1) FPN No. 4\uff09<\/li>\n<li><strong>\u6700\u59275%<\/strong> \u30d5\u30a3\u30fc\u30c0\u30fc\u304a\u3088\u3073\u5206\u5c90\u56de\u8def\u306e\u7d44\u307f\u5408\u308f\u305b<\/li>\n<li><strong>\u6700\u59272%<\/strong> \u654f\u611f\u306a\u96fb\u5b50\u6a5f\u5668\u306e\u5834\u5408\uff08NEC 647.4(D)\uff09<\/li>\n<\/ul>\n<p><strong>\u3053\u306e\u96fb\u5727\u964d\u4e0b\u5236\u9650\uff08\u8a31\u5bb9\u96fb\u6d41\u3067\u306f\u306a\u304f\uff09\u304c\u300112\/2\u30ef\u30a4\u30e4\u30fc\u306e\u5b9f\u7528\u7684\u306a\u6700\u5927\u8ddd\u96e2\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002.<\/strong><\/p>\n<hr \/>\n<h2>\u6700\u5927\u914d\u7dda\u8ddd\u96e2\u306e\u80cc\u5f8c\u306b\u3042\u308b\u6570\u5b66<\/h2>\n<h3>\u96fb\u5727\u964d\u4e0b\u8a08\u7b97\u5f0f<\/h3>\n<p>2\u7dda\u5f0f\u56de\u8def\u306e\u96fb\u5727\u964d\u4e0b\u3092\u8a08\u7b97\u3059\u308b\u305f\u3081\u306e\u57fa\u672c\u7684\u306a\u516c\u5f0f\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<p><strong>VD = (2 \u00d7 R \u00d7 I \u00d7 L) \/ 1000<\/strong><\/p>\n<p>\u3069\u3053\u3067\u3060\uff1a<\/p>\n<ul>\n<li>VD = \u96fb\u5727\u964d\u4e0b\uff08\u30dc\u30eb\u30c8\uff09<\/li>\n<li>R = 1,000\u30d5\u30a3\u30fc\u30c8\u3042\u305f\u308a\u306e\u62b5\u6297\uff08\u30aa\u30fc\u30e0\uff09<\/li>\n<li>I = \u96fb\u6d41\uff08\u30a2\u30f3\u30da\u30a2\uff09<\/li>\n<li>L = \u7247\u9053\u8ddd\u96e2\uff08\u30d5\u30a3\u30fc\u30c8\uff09<\/li>\n<li>2 = \u30db\u30c3\u30c8\u304a\u3088\u3073\u30cb\u30e5\u30fc\u30c8\u30e9\u30eb\u5c0e\u4f53\u306e\u4e21\u65b9\u3092\u8003\u616e<\/li>\n<\/ul>\n<p>12 AWG\u9285\u7dda\u306e\u5834\u5408\uff1a <strong>R = 1,000\u30d5\u30a3\u30fc\u30c8\u3042\u305f\u308a1.93\u30aa\u30fc\u30e0<\/strong> \uff08NEC\u7b2c9\u7ae0\u3001\u88688\uff09<\/p>\n<h3>\u6700\u5927\u8ddd\u96e2\u306e\u516c\u5f0f<\/h3>\n<p>\u6700\u5927\u8ddd\u96e2\u3092\u6c42\u3081\u308b\u305f\u3081\u306b\u516c\u5f0f\u3092\u4e26\u3079\u66ff\u3048\u307e\u3059\u3002<\/p>\n<p><strong>\u6700\u5927\u8ddd\u96e2\uff08\u30d5\u30a3\u30fc\u30c8\uff09= (\u6700\u5927VD \u00d7 1000) \/ (2 \u00d7 R \u00d7 I)<\/strong><\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Schematic-showing-voltage-drop-visualization-along-wire-length-with-labeled-components.webp\" alt=\"Technical schematic diagram showing voltage drop visualization along 12 AWG wire length\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 5px;\">\u56f32\uff1a\u30bd\u30fc\u30b9\u304b\u3089\u8ca0\u8377\u307e\u3067\u306e12 AWG\u5c0e\u4f53\u914d\u7dda\u306b\u6cbf\u3063\u305f\u96fb\u5727\u964d\u4e0b\u306e\u6982\u7565\u56f3\u3002.<\/figcaption><\/figure>\n<hr \/>\n<h2>\u6700\u5927\u8ddd\u96e2\u8868\uff1a20\u30a2\u30f3\u30da\u30a2\u30d6\u30ec\u30fc\u30ab\u30fc\u4e0a\u306e12\/2\u30ef\u30a4\u30e4\u30fc<\/h2>\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;\">\u30b7\u30b9\u30c6\u30e0\u96fb\u5727<\/th>\n<th style=\"padding: 8px;\">\u8ca0\u8377\u96fb\u6d41<\/th>\n<th style=\"padding: 8px;\">\u6700\u5927\u8ddd\u96e2\uff083% VD\uff09<\/th>\n<th style=\"padding: 8px;\">\u6700\u5927\u8ddd\u96e2\uff085% VD\uff09<\/th>\n<th style=\"padding: 8px;\">\u8ca0\u8377\u6642\u306e\u5b9f\u969b\u306e\u96fb\u5727\uff083%\uff09<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\">120V<\/td>\n<td style=\"padding: 8px;\">20A (100%)<\/td>\n<td style=\"padding: 8px;\">51\u30d5\u30a3\u30fc\u30c8<\/td>\n<td style=\"padding: 8px;\">85\u30d5\u30a3\u30fc\u30c8<\/td>\n<td style=\"padding: 8px;\">116.4V<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">120V<\/td>\n<td style=\"padding: 8px;\">16A (80%)<\/td>\n<td style=\"padding: 8px;\">64\u30d5\u30a3\u30fc\u30c8<\/td>\n<td style=\"padding: 8px;\">106\u30d5\u30a3\u30fc\u30c8<\/td>\n<td style=\"padding: 8px;\">116.4V<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">120V<\/td>\n<td style=\"padding: 8px;\">12A (60%)<\/td>\n<td style=\"padding: 8px;\">85\u30d5\u30a3\u30fc\u30c8<\/td>\n<td style=\"padding: 8px;\">142\u30d5\u30a3\u30fc\u30c8<\/td>\n<td style=\"padding: 8px;\">116.4V<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">120V<\/td>\n<td style=\"padding: 8px;\">8A (40%)<\/td>\n<td style=\"padding: 8px;\">128\u30d5\u30a3\u30fc\u30c8<\/td>\n<td style=\"padding: 8px;\">213\u30d5\u30a3\u30fc\u30c8<\/td>\n<td style=\"padding: 8px;\">116.4V<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">240V<\/td>\n<td style=\"padding: 8px;\">20A (100%)<\/td>\n<td style=\"padding: 8px;\">93\u30d5\u30a3\u30fc\u30c8<\/td>\n<td style=\"padding: 8px;\">155\u30d5\u30a3\u30fc\u30c8<\/td>\n<td style=\"padding: 8px;\">232.8V<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">240V<\/td>\n<td style=\"padding: 8px;\">16A (80%)<\/td>\n<td style=\"padding: 8px;\">116\u30d5\u30a3\u30fc\u30c8<\/td>\n<td style=\"padding: 8px;\">194\u30d5\u30a3\u30fc\u30c8<\/td>\n<td style=\"padding: 8px;\">232.8V<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>\u6ce8\uff1a\u8ddd\u96e2\u306f\u30d1\u30cd\u30eb\u304b\u3089\u8ca0\u8377\u307e\u3067\u306e\u7247\u9053\u6e2c\u5b9a\u5024\u3067\u3059<\/em><\/p>\n<h3>80%\u30eb\u30fc\u30eb\u304c\u91cd\u8981\u306a\u7406\u7531<\/h3>\n<p>NEC\uff08\u7c73\u56fd\u96fb\u6c17\u5de5\u4e8b\u898f\u7a0b\uff09\u3067\u306f\u3001\u9023\u7d9a\u8ca0\u8377\uff083\u6642\u9593\u4ee5\u4e0a\u52d5\u4f5c\u3059\u308b\u3082\u306e\uff09\u3092\u8a08\u7b97\u3059\u308b\u969b\u306b\u3001 <strong>\u5b9f\u969b\u306e\u8ca0\u8377\u306e125%\u3067\u8a08\u7b97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059<\/strong>, \u3002\u3064\u307e\u308a\u300120\u30a2\u30f3\u30da\u30a2\u306e\u56de\u8def\u306f <strong>16\u30a2\u30f3\u30da\u30a2\u307e\u3067\u3057\u304b\u9023\u7d9a\u3057\u3066\u6d41\u305b\u306a\u3044\u3053\u3068\u306b\u306a\u308a\u307e\u3059<\/strong> \uff08\u5b9a\u683c\u5bb9\u91cf\u306e80%\uff09\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u5b89\u5168\u30de\u30fc\u30b8\u30f3\u304c\u78ba\u4fdd\u3055\u308c\u3001\u5b9f\u8cea\u7684\u306a\u6700\u5927\u8ddd\u96e2\u304c\u5ef6\u9577\u3055\u308c\u307e\u3059\u3002.<\/p>\n<hr \/>\n<h2>\u5b9f\u969b\u306e\u8ddd\u96e2\u30b7\u30ca\u30ea\u30aa<\/h2>\n<h3>\u30b7\u30ca\u30ea\u30aa1\uff1a\u5c4b\u5916\u30ef\u30fc\u30af\u30b7\u30e7\u30c3\u30d7\uff08\u30d5\u30eb20A\u8ca0\u8377\uff09<\/h3>\n<p><strong>\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7<\/strong>\uff1a\u4e3b\u5e79\u30d1\u30cd\u30eb\u304b\u3089\u3001\u96fb\u52d5\u5de5\u5177\uff08\u30c6\u30fc\u30d6\u30eb\u30bd\u30fc\u3001\u30a8\u30a2\u30b3\u30f3\u30d7\u30ec\u30c3\u30b5\u30fc\uff09\u3092\u4f7f\u7528\u3059\u308b\u5c4b\u5916\u30ef\u30fc\u30af\u30b7\u30e7\u30c3\u30d7\u307e\u306712\/2\u30ef\u30a4\u30e4\u3092\u914d\u7dda\u3057\u300118\u301c20\u30a2\u30f3\u30da\u30a2\u3092\u6d88\u8cbb\u3059\u308b\u5834\u5408\u3002.<\/p>\n<p><strong>\u8ddd\u96e2<\/strong>\uff1a75\u30d5\u30a3\u30fc\u30c8<\/p>\n<p><strong>\u8a08\u7b97<\/strong>:<\/p>\n<ul>\n<li>VD = (2 \u00d7 1.93 \u00d7 20 \u00d7 75) \/ 1000 = <strong>5.79\u30dc\u30eb\u30c8<\/strong><\/li>\n<li>\u96fb\u5727\u964d\u4e0b\u7387 = 5.79V \/ 120V = <strong>4.8%<\/strong><\/li>\n<\/ul>\n<p><strong>\u7d50\u679c<\/strong>\uff1a\u274c <strong>3%\u306e\u63a8\u5968\u5024\u3092\u8d85\u3048\u3066\u3044\u307e\u3059<\/strong> \uff08\u305f\u3060\u3057\u3001\u6700\u59275%\u4ee5\u5185\uff09<\/p>\n<p><strong>\u304a\u3059\u3059\u3081<\/strong>\uff1a\u4ee5\u4e0b\u306b\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3057\u307e\u3059 <strong>10 AWG\u30ef\u30a4\u30e4<\/strong> \u96fb\u5727\u964d\u4e0b\u30922.9%\uff083.6V\uff09\u306b\u4f4e\u6e1b\u3059\u308b\u305f\u3081<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Cutaway-house-illustration-showing-75-foot-wire-run-from-panel-to-workshop-with-voltage-measurements.webp\" alt=\"Cutaway illustration of a house showing a 75-foot wire run to a workshop with voltage drop measurements\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 5px;\">\u56f33\uff1a\u6a19\u6e96\u306e12 AWG\u30ef\u30a4\u30e4\u3092\u4f7f\u7528\u3057\u305f\u5834\u5408\u306b\u3001\u30ef\u30fc\u30af\u30b7\u30e7\u30c3\u30d7\u307e\u3067\u306e75\u30d5\u30a3\u30fc\u30c8\u306e\u914d\u7dda\u3067\u5927\u304d\u306a\u96fb\u5727\u964d\u4e0b\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u3092\u793a\u3059\u56f3\u3002.<\/figcaption><\/figure>\n<h3>\u30b7\u30ca\u30ea\u30aa2\uff1a\u666f\u89b3\u7167\u660e\uff08\u4f4e\u30a2\u30f3\u30da\u30a2\u6570\uff09<\/h3>\n<p><strong>\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7<\/strong>\uff1aLED\u666f\u89b3\u7167\u660e\u306f\u308f\u305a\u304b3\u30a2\u30f3\u30da\u30a2\u3092\u6d88\u8cbb\u3057\u3001\u30d1\u30cd\u30eb\u304b\u3089150\u30d5\u30a3\u30fc\u30c8\u96e2\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n<p><strong>\u8a08\u7b97<\/strong>:<\/p>\n<ul>\n<li>VD = (2 \u00d7 1.93 \u00d7 3 \u00d7 150) \/ 1000 = <strong>1.74\u30dc\u30eb\u30c8<\/strong><\/li>\n<li>\u96fb\u5727\u964d\u4e0b\u7387 = 1.74V \/ 120V = <strong>1.45%<\/strong><\/li>\n<\/ul>\n<p><strong>\u7d50\u679c<\/strong>\uff1a\u2705 <strong>3%\u306e\u5236\u9650\u5185\u306b\u5341\u5206\u53ce\u307e\u3063\u3066\u3044\u307e\u3059<\/strong><\/p>\n<p><strong>\u91cd\u8981\u306a\u8003\u5bdf<\/strong>: <strong>\u8ca0\u8377\u96fb\u6d41\u306f\u3001\u30ef\u30a4\u30e4\u306e\u5b9a\u683c\u3088\u308a\u3082\u91cd\u8981\u3067\u3059\u3002.<\/strong> 12\/2\u30ef\u30a4\u30e4\u306f20\u30a2\u30f3\u30da\u30a2\u5b9a\u683c\u3067\u3059\u304c\u3001\u4f4e\u30a2\u30f3\u30da\u30a2\u6570\u306e\u8ca0\u8377\u306f\u306f\u308b\u304b\u306b\u9577\u3044\u8ddd\u96e2\u3092\u914d\u7dda\u3067\u304d\u307e\u3059\u3002.<\/p>\n<h3>\u30b7\u30ca\u30ea\u30aa3\uff1aEV\u5145\u96fb\u5668\u306e\u8a2d\u7f6e<\/h3>\n<p><strong>\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7<\/strong>\uff1a\u30ec\u30d9\u30eb2 EV\u5145\u96fb\u5668\uff0816A\u9023\u7d9a\uff09\u304c\u30d1\u30cd\u30eb\u304b\u308985\u30d5\u30a3\u30fc\u30c8\u306e\u5834\u6240\u306b\u8a2d\u7f6e\u3055\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n<p><strong>\u8a08\u7b97<\/strong>:<\/p>\n<ul>\n<li>VD = (2 \u00d7 1.93 \u00d7 16 \u00d7 85) \/ 1000 = <strong>5.25\u30dc\u30eb\u30c8<\/strong><\/li>\n<li>\u96fb\u5727\u964d\u4e0b\u7387 = 5.25V \/ 120V = <strong>4.4%<\/strong><\/li>\n<\/ul>\n<p><strong>\u7d50\u679c<\/strong>\uff1a\u274c <strong>3%\u306e\u63a8\u5968\u5024\u3092\u8d85\u3048\u3066\u3044\u307e\u3059<\/strong><\/p>\n<p><strong>\u30d7\u30ed\u306b\u3088\u308b\u89e3\u6c7a\u7b56<\/strong>\uff1a\u4f7f\u7528 <strong>10 AWG\u30ef\u30a4\u30e4<\/strong> \u307e\u305f\u306f\u3001\u4ee5\u4e0b\u3067\u5b9f\u884c\u3057\u307e\u3059 <strong>240V<\/strong> \uff08\u3053\u308c\u306b\u3088\u308a\u3001\u96fb\u5727\u964d\u4e0b\u7387\u304c\u534a\u5206\u306b\u306a\u308a\u307e\u3059\uff09 <a href=\"https:\/\/www.reddit.com\/r\/AskElectricians\/comments\/1auud0b\/122_wire_length_for_20a_circuit\/\" rel=\"nofollow noopener\" target=\"_blank\">\u5f15\u7528<\/a><\/p>\n<hr \/>\n<h2>\u96a0\u308c\u305f\u5371\u967a\uff1a\u6545\u969c\u30eb\u30fc\u30d7\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9<\/h2>\n<p>\u96fb\u5727\u964d\u4e0b\u4ee5\u5916\u306b\u3082\u3001 <strong>\u91cd\u8981\u306a\u5b89\u5168\u4e0a\u306e\u554f\u984c<\/strong> \u304c\u3042\u308a\u3001\u307b\u3068\u3093\u3069\u306eDIYer\u306f\u898b\u843d\u3068\u3057\u3066\u3044\u307e\u3059\u3002 <strong>\u6545\u969c\u30eb\u30fc\u30d7\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9<\/strong>.<\/p>\n<h3>\u6545\u969c\u30eb\u30fc\u30d7\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3068\u306f\uff1f<\/h3>\n<p>\u77ed\u7d61\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u3001\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u5927\u898f\u6a21\u306a\u96fb\u6d41\u30b5\u30fc\u30b8\uff08\u901a\u5e38\u306f <strong>\u5b9a\u683c\u96fb\u6d41\u306e5\u301c10\u500d<\/strong>\uff09\u3092\u691c\u51fa\u3057\u3001\u77ac\u6642\u306b\u78c1\u6c17\u30c8\u30ea\u30c3\u30d7\u6a5f\u69cb\u3092\u4f5c\u52d5\u3055\u305b\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u300220\u30a2\u30f3\u30da\u30a2\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u5834\u5408\u3001\u3053\u308c\u306f <strong>100\u301c200\u30a2\u30f3\u30da\u30a2<\/strong> \u306e\u6545\u969c\u96fb\u6d41\u3092\u610f\u5473\u3057\u307e\u3059\u3002.<\/p>\n<p><strong>\u554f\u984c\u70b9<\/strong>\uff1a\u30ef\u30a4\u30e4\u306e\u9577\u3055\u304c\u9577\u304f\u306a\u308b\u306b\u3064\u308c\u3066\u3001\u56de\u8def\u5168\u4f53\u306e\u62b5\u6297\u304c\u5897\u52a0\u3057\u3001 <strong>\u77ed\u7d61\u96fb\u6d41\u304c\u6e1b\u5c11\u3057\u307e\u3059<\/strong>.<\/p>\n<h3>\u3053\u308c\u304c\u5371\u967a\u306a\u7406\u7531<\/h3>\n<p><strong>\u30b7\u30ca\u30ea\u30aa<\/strong>\uff1a12\/2\u30ef\u30a4\u30e4\u3092500\u30d5\u30a3\u30fc\u30c8\u914d\u7dda\u3057\u3066\u3001\u96e2\u308c\u305f\u5efa\u7269\u306b\u63a5\u7d9a\u3057\u307e\u3059\u3002.<\/p>\n<ul>\n<li>\u56de\u8def\u5168\u4f53\u306e\u62b5\u6297 = (2 \u00d7 1.93 \u00d7 500) \/ 1000 = <strong>1.93\u30aa\u30fc\u30e0<\/strong><\/li>\n<li>\u77ed\u7d61\u96fb\u6d41 = 120V \/ 1.93\u03a9 = <strong>62\u30a2\u30f3\u30da\u30a2<\/strong><\/li>\n<\/ul>\n<p><strong>\u91cd\u8981\u306a\u554f\u984c<\/strong>\uff1a62\u30a2\u30f3\u30da\u30a2\u3067\u306f\u3001\u78c1\u6c17\u30c8\u30ea\u30c3\u30d7\u3092\u4f5c\u52d5\u3055\u305b\u308b\u306e\u306b\u5341\u5206\u3067\u306f\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u3001\u3088\u308a\u9045\u3044 <strong>\u71b1\u52d5\u30c8\u30ea\u30c3\u30d7\u6a5f\u69cb<\/strong>, \u3001\u4f5c\u52d5\u3059\u308b\u307e\u3067\u306b <strong>30\uff5e60\u79d2<\/strong> \u304b\u304b\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002.<\/p>\n<p><strong>\u7d50\u679c<\/strong>\uff1a\u305d\u306e30\uff5e60\u79d2\u306e\u9593\u306b\u3001\u96fb\u7dda\u306f <strong>\u5de8\u5927\u306a\u767a\u71b1\u4f53<\/strong>, \u3068\u306a\u308a\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u30c8\u30ea\u30c3\u30d7\u3059\u308b\u524d\u306b\u5468\u56f2\u306e\u7269\u8cea\u306b\u5f15\u706b\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Thermal-imaging-comparison-of-normal-vs-overheated-wire-at-different-distances.webp\" alt=\"Thermal imaging comparison showing normal vs overheated wire caused by excessive distance\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 5px;\">\u56f34\uff1a\u96fb\u7dda\u306e\u9577\u3055\u304c\u904e\u5270\u306a\u5834\u5408\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u30c8\u30ea\u30c3\u30d7\u3059\u308b\u524d\u306b\u5371\u967a\u306a\u904e\u71b1\u306b\u3064\u306a\u304c\u308b\u3053\u3068\u3092\u793a\u3059\u71b1\u753b\u50cf\u6bd4\u8f03\u3002.<\/figcaption><\/figure>\n<h3>\u30d7\u30ed\u306b\u3088\u308b\u89e3\u6c7a\u7b56<\/h3>\n<p>\u9577\u8ddd\u96e2\u914d\u7dda\u306e\u5834\u5408\u3001\u5e38\u306b\u4ee5\u4e0b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <strong>\u4e88\u60f3\u3055\u308c\u308b\u77ed\u7d61\u96fb\u6d41<\/strong> \u304c\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u77ac\u6642\u30c8\u30ea\u30c3\u30d7\u95be\u5024\u3092\u8d85\u3048\u308b\u3053\u3068\u3002\u3053\u308c\u306b\u306f\u591a\u304f\u306e\u5834\u5408\u3001\u4ee5\u4e0b\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<ol>\n<li><strong>\u96fb\u7dda\u30b5\u30a4\u30ba\u306e\u30a2\u30c3\u30d7<\/strong> \u96fb\u5727\u964d\u4e0b\u306e\u8981\u4ef6\u3092\u8d85\u3048\u3066<\/li>\n<li><strong>\u30b5\u30d6\u30d1\u30cd\u30eb\u306e\u8a2d\u7f6e<\/strong> \u8ca0\u8377\u306e\u8fd1\u304f\u306b<\/li>\n<li><strong>\u3088\u308a\u9ad8\u3044\u96fb\u5727\u306e\u4f7f\u7528<\/strong> \uff08120V\u306e\u4ee3\u308f\u308a\u306b240V\uff09<\/li>\n<\/ol>\n<hr \/>\n<h2>\u96fb\u7dda\u30b5\u30a4\u30ba\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u6bd4\u8f03\u8868<\/h2>\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;\">\u8ddd\u96e2<\/th>\n<th style=\"padding: 8px;\">120V @ 20A<\/th>\n<th style=\"padding: 8px;\">120V @ 16A<\/th>\n<th style=\"padding: 8px;\">240V @ 20A<\/th>\n<th style=\"padding: 8px;\">\u63a8\u5968\u96fb\u7dda\u30b5\u30a4\u30ba<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\">0-50 ft<\/td>\n<td style=\"padding: 8px;\">2.6% VD<\/td>\n<td style=\"padding: 8px;\">2.1% VD<\/td>\n<td style=\"padding: 8px;\">1.3% VD<\/td>\n<td style=\"padding: 8px;\"><strong>12AWG<\/strong> \u2705<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">51-75 ft<\/td>\n<td style=\"padding: 8px;\">3.9% VD<\/td>\n<td style=\"padding: 8px;\">3.1% VD<\/td>\n<td style=\"padding: 8px;\">1.9% VD<\/td>\n<td style=\"padding: 8px;\"><strong>10AWG<\/strong> \u26a0\ufe0f<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">76-100 ft<\/td>\n<td style=\"padding: 8px;\">5.2% VD<\/td>\n<td style=\"padding: 8px;\">4.1% VD<\/td>\n<td style=\"padding: 8px;\">2.6% VD<\/td>\n<td style=\"padding: 8px;\"><strong>10AWG<\/strong> \u26a0\ufe0f<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">101-150 ft<\/td>\n<td style=\"padding: 8px;\">7.7% VD<\/td>\n<td style=\"padding: 8px;\">6.2% VD<\/td>\n<td style=\"padding: 8px;\">3.9% VD<\/td>\n<td style=\"padding: 8px;\"><strong>8AWG<\/strong> \u26a0\ufe0f<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">151-200 ft<\/td>\n<td style=\"padding: 8px;\">10.3% VD<\/td>\n<td style=\"padding: 8px;\">8.3% VD<\/td>\n<td style=\"padding: 8px;\">5.2% VD<\/td>\n<td style=\"padding: 8px;\"><strong>6AWG<\/strong> \u26a0\ufe0f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>\u51e1\u4f8b<\/strong>\uff1a\u2705 \u8a31\u5bb9 | \u26a0\ufe0f \u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u304c\u5fc5\u8981<\/p>\n<hr \/>\n<h2>\u5b9f\u7528\u7684\u306a\u8a2d\u7f6e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/h2>\n<h3>12\/2\u96fb\u7dda\u304c\u8a31\u5bb9\u3055\u308c\u308b\u5834\u5408<\/h3>\n<ul>\n<li>\u2705 <strong>\u4f4f\u5b85\u7528\u5206\u5c90\u56de\u8def<\/strong> 50\u30d5\u30a3\u30fc\u30c8\u672a\u6e80<\/li>\n<li>\u2705 <strong>\u8efd\u8ca0\u8377<\/strong> \uff08\u7167\u660e\u3001\u30b3\u30f3\u30bb\u30f3\u30c8\uff0910\u30a2\u30f3\u30da\u30a2\u672a\u6e80<\/li>\n<li>\u2705 <strong>\u77ed\u3044\u914d\u7dda<\/strong> \u30b5\u30d6\u30d1\u30cd\u30eb\u304b\u3089\u8fd1\u304f\u306e\u30b3\u30f3\u30bb\u30f3\u30c8\u307e\u3067<\/li>\n<li>\u2705 <strong>240V\u56de\u8def<\/strong> \u96fb\u5727\u964d\u4e0b\u304c\u534a\u5206\u306b\u306a\u308b\u5834\u5408<\/li>\n<\/ul>\n<h3>12\/2\u304b\u3089\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3059\u308b\u5834\u5408<\/h3>\n<ul>\n<li>\u26a0\ufe0f <strong>60\u30d5\u30a3\u30fc\u30c8\u3092\u8d85\u3048\u308b\u8ddd\u96e2<\/strong> \u30d5\u30eb20A\u8ca0\u8377\u6642<\/li>\n<li>\u26a0\ufe0f <strong>\u30e2\u30fc\u30bf\u30fc\u8ca0\u8377<\/strong> \uff08\u30a8\u30a2\u30b3\u30f3\u30d7\u30ec\u30c3\u30b5\u30fc\u3001\u96fb\u52d5\u5de5\u5177\uff09\u9ad8\u3044\u59cb\u52d5\u96fb\u6d41\u304c\u5fc5\u8981<\/li>\n<li>\u26a0\ufe0f <strong>EV\u5145\u96fb\u5668<\/strong> 16A+\u3067\u9023\u7d9a\u904b\u8ee2<\/li>\n<li>\u26a0\ufe0f <strong>\u654f\u611f\u306a\u96fb\u5b50\u6a5f\u5668<\/strong> \u5b89\u5b9a\u3057\u305f\u96fb\u5727\u304c\u5fc5\u8981<\/li>\n<li>\u26a0\ufe0f <strong>\u5c4b\u5916\u306e\u5efa\u7269<\/strong> \u30e1\u30a4\u30f3\u30d1\u30cd\u30eb\u304b\u3089100\u30d5\u30a3\u30fc\u30c8\u4ee5\u4e0a<\/li>\n<\/ul>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Floor-plan-with-color-coded-wire-paths-showing-proper-sizing-strategy-for-different-distances.webp\" alt=\"Floor plan diagram with color-coded wire paths illustrating proper sizing strategy\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 5px;\">\u56f35\uff1a\u8ddd\u96e2\u306b\u57fa\u3065\u3044\u3066\u6b63\u3057\u3044\u96fb\u7dda\u30b5\u30a4\u30ba\u30ed\u30b8\u30c3\u30af\u3092\u793a\u3059\u4f4f\u5b85\u306e\u30d5\u30ed\u30a2\u30d7\u30e9\u30f3\uff1a\u7dd1\uff0830\u30d5\u30a3\u30fc\u30c8\uff09\u306f12 AWG\u3001\u9ec4\uff0875\u30d5\u30a3\u30fc\u30c8\uff09\u306f10 AWG\u3001\u8d64\uff08150\u30d5\u30a3\u30fc\u30c8\uff09\u306f8 AWG\u3092\u4f7f\u7528\u3002.<\/figcaption><\/figure>\n<hr \/>\n<h2>NEC\u30b3\u30fc\u30c9\u6e96\u62e0\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/h2>\n<p>12\/2\u96fb\u7dda\u306e\u8a2d\u7f6e\u3092\u8a08\u753b\u3059\u308b\u969b\u306f\u3001\u3053\u308c\u3089\u306eNEC\u8981\u4ef6\u3078\u306e\u6e96\u62e0\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/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;\">\u30b3\u30fc\u30c9\u30bb\u30af\u30b7\u30e7\u30f3<\/th>\n<th style=\"padding: 8px;\">\u5fc5\u8981\u6761\u4ef6<\/th>\n<th style=\"padding: 8px;\">\u6e96\u62e0\u30c1\u30a7\u30c3\u30af<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><strong>NEC 210.19(A)(1)<\/strong><\/td>\n<td style=\"padding: 8px;\">\u5206\u5c90\u56de\u8def\u306e\u96fb\u5727\u964d\u4e0b\u2264 3%\u63a8\u5968<\/td>\n<td style=\"padding: 8px;\">\u6700\u5927\u8ca0\u8377\u6642\u306eVD\u3092\u8a08\u7b97\u3059\u308b<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>NEC 240.4(D)<\/strong><\/td>\n<td style=\"padding: 8px;\">\u6700\u592720A\u306e\u904e\u96fb\u6d41\u4fdd\u8b77\u88c5\u7f6e\u3067\u4fdd\u8b77\u3055\u308c\u305f12 AWG<\/td>\n<td style=\"padding: 8px;\">20A\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u3092\u4f7f\u7528\uff0825A\u307e\u305f\u306f30A\u3067\u306f\u306a\u3044\uff09<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>NEC 310.16<\/strong><\/td>\n<td style=\"padding: 8px;\">\u8ca0\u8377\u306b\u5bfe\u3057\u3066\u5341\u5206\u306a\u96fb\u7dda\u8a31\u5bb9\u96fb\u6d41<\/td>\n<td style=\"padding: 8px;\">12 AWG = 60\u2103\u306720A\u300190\u2103\u306725A<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>NEC 110.14(C)<\/strong><\/td>\n<td style=\"padding: 8px;\">\u7d42\u7aef\u6e29\u5ea6\u5b9a\u683c<\/td>\n<td style=\"padding: 8px;\">\u307b\u3068\u3093\u3069\u306e\u30c7\u30d0\u30a4\u30b9\u306f60\u2103\u307e\u305f\u306f75\u2103\u5b9a\u683c<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>NEC 334.80<\/strong><\/td>\n<td style=\"padding: 8px;\">NM\u30b1\u30fc\u30d6\u30eb\u306f4.5\u30d5\u30a3\u30fc\u30c8\u3054\u3068\u306b\u652f\u6301<\/td>\n<td style=\"padding: 8px;\">Romex\u3092\u9069\u5207\u306b\u56fa\u5b9a<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2>\u8cbb\u7528\u5bfe\u52b9\u679c\u5206\u6790\uff1a\u96fb\u7dda\u30b5\u30a4\u30ba\u3092\u5927\u304d\u304f\u3059\u308b\u5834\u5408<\/h2>\n<h3>\u6750\u6599\u8cbb\u306e\u6bd4\u8f03\uff08100\u30d5\u30a3\u30fc\u30c8\u3042\u305f\u308a\uff09<\/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;\">\u30ef\u30a4\u30e4\u30fc\u30b5\u30a4\u30ba<\/th>\n<th style=\"padding: 8px;\">\u304a\u304a\u3088\u305d\u306e\u8cbb\u7528<\/th>\n<th style=\"padding: 8px;\">\u96fb\u5727\u964d\u4e0b @ 20A\/100\u30d5\u30a3\u30fc\u30c8<\/th>\n<th style=\"padding: 8px;\">\u9577\u671f\u7684\u306a\u30a8\u30cd\u30eb\u30ae\u30fc\u640d\u5931<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\">12AWG<\/td>\n<td style=\"padding: 8px;\">$45-65<\/td>\n<td style=\"padding: 8px;\">5.2%<\/td>\n<td style=\"padding: 8px;\">$15-25\/\u5e74*<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">10AWG<\/td>\n<td style=\"padding: 8px;\">$75-95<\/td>\n<td style=\"padding: 8px;\">3.3%<\/td>\n<td style=\"padding: 8px;\">$10-15\/\u5e74*<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">8AWG<\/td>\n<td style=\"padding: 8px;\">$125-165<\/td>\n<td style=\"padding: 8px;\">2.1%<\/td>\n<td style=\"padding: 8px;\">$6-10\/\u5e74*<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>*$0.12\/kWh\u306716A\u306e\u9023\u7d9a\u8ca0\u8377\u306b\u57fa\u3065\u304f<\/p>\n<p><strong>ROI (\u6295\u8cc7\u53ce\u76ca\u7387) \u306e\u8a08\u7b97<\/strong>\uff1a16A\u3092\u9023\u7d9a\u3057\u3066\u904b\u3076100\u30d5\u30a3\u30fc\u30c8\u306e\u914d\u7dda\u306e\u5834\u5408\uff1a<\/p>\n<ul>\n<li>12 AWG\u304b\u308910 AWG\u3078\u306e\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u8cbb\u7528 <strong>$30\u4ee5\u4e0a<\/strong><\/li>\n<li>\u5e74\u9593\u306e\u30a8\u30cd\u30eb\u30ae\u30fc\u7bc0\u7d04\uff1a <strong>$10-15<\/strong><\/li>\n<li><strong>\u56de\u53ce\u671f\u9593\uff1a2\u301c3\u5e74<\/strong><\/li>\n<li><strong>\u6a5f\u5668\u306e\u5bff\u547d\u5411\u4e0a<\/strong>\uff1a\u30e2\u30fc\u30bf\u30fc\u3068\u96fb\u5b50\u6a5f\u5668\u306f\u5b89\u5b9a\u3057\u305f\u96fb\u5727\u3067\u9577\u6301\u3061\u3059\u308b<\/li>\n<\/ul>\n<p><strong>\u5c02\u9580\u5bb6\u306e\u63a8\u85a6<\/strong>\uff1a75\u30d5\u30a3\u30fc\u30c8\u3092\u8d85\u3048\u308b\u6052\u4e45\u7684\u8a2d\u7f6e\u306e\u5834\u5408\u3001, <strong>\u96fb\u7dda\u30b5\u30a4\u30ba\u30921\u3064\u5927\u304d\u304f\u3059\u308b<\/strong>. \u3002\u9577\u671f\u7684\u306a\u6027\u80fd\u3068\u5b89\u5168\u6027\u306e\u5229\u70b9\u3068\u6bd4\u8f03\u3057\u3066\u3001\u9650\u754c\u8cbb\u7528\u306f\u6700\u5c0f\u9650\u3067\u3059\u3002.<\/p>\n<hr \/>\n<h2>\u3055\u307e\u3056\u307e\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u95a2\u3059\u308b\u7279\u5225\u306a\u8003\u616e\u4e8b\u9805<\/h2>\n<h3>HVAC\u304a\u3088\u3073\u30d2\u30fc\u30c8\u30dd\u30f3\u30d7\u56de\u8def<\/h3>\n<p>\u96fb\u6c17\u6696\u623f\u304a\u3088\u3073\u51b7\u623f\u6a5f\u5668\u306f\u3001\u7279\u306b\u96fb\u5727\u964d\u4e0b\u306b\u654f\u611f\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30b3\u30f3\u30d7\u30ec\u30c3\u30b5\u30fc\u30e2\u30fc\u30bf\u30fc<\/strong> \u9ad8\u3044\u59cb\u52d5\u96fb\u6d41\u3092\u6d88\u8cbb\uff08LRA =\u30ed\u30c3\u30af\u30ed\u30fc\u30bf\u30fc\u30a2\u30f3\u30da\u30a2\uff09<\/li>\n<li><strong>\u96fb\u5727\u4f4e\u4e0b<\/strong> \u30e2\u30fc\u30bf\u30fc\u304c\u904e\u71b1\u3057\u3001\u65e9\u671f\u306b\u6545\u969c\u3059\u308b\u539f\u56e0\u3068\u306a\u308b<\/li>\n<li><strong>\u304a\u3059\u3059\u3081<\/strong>\uff1a\u96fb\u5727\u964d\u4e0b\u3092\u4ee5\u4e0b\u306b\u5236\u9650\u3059\u308b <strong>\u6700\u59272%<\/strong> HVAC\u56de\u8def\u306e\u5834\u5408<\/li>\n<\/ul>\n<h3>EV\u5145\u96fb\u30b9\u30c6\u30fc\u30b7\u30e7\u30f3<\/h3>\n<p>\u30ec\u30d9\u30eb2 EV\u5145\u96fb\u5668\u306f\u3001\u72ec\u81ea\u306e\u554f\u984c\u3092\u62b1\u3048\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u9023\u7d9a\u8ca0\u8377<\/strong>\uff1a\u30d6\u30ec\u30fc\u30ab\u30fc\u5b9a\u683c\u306e80%\u3067\u6570\u6642\u9593\u52d5\u4f5c<\/li>\n<li><strong>\u8ddd\u96e2<\/strong>\uff1a\u591a\u304f\u306e\u5834\u5408\u3001\u30d1\u30cd\u30eb\u304b\u3089\u96e2\u308c\u305f\u30ac\u30ec\u30fc\u30b8\u307e\u305f\u306f\u79c1\u9053\u306b\u8a2d\u7f6e<\/li>\n<li><strong>\u6db2<\/strong>\uff1a\u4f7f\u7528 <strong>240V\u56de\u8def<\/strong> \u96fb\u5727\u964d\u4e0b\u7387\u3092\u534a\u5206\u306b\u3059\u308b\u304b\u3001 <strong>\u5c02\u7528\u306e\u30b5\u30d6\u30d1\u30cd\u30eb\u3092\u8a2d\u7f6e<\/strong><\/li>\n<\/ul>\n<h3>\u592a\u967d\u5149\u767a\u96fb\u304a\u3088\u3073\u30d0\u30c3\u30c6\u30ea\u30fc\u30b7\u30b9\u30c6\u30e0<\/h3>\n<p>DC\u56de\u8def\u306b\u306f\u7570\u306a\u308b\u8003\u616e\u4e8b\u9805\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u7121\u52b9\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306a\u3057<\/strong>\uff1a\u62b5\u6297\u306e\u307f\u304c\u91cd\u8981<\/li>\n<li><strong>\u3088\u308a\u9ad8\u3044\u96fb\u5727<\/strong>\uff1a48V\u30b7\u30b9\u30c6\u30e0\u306f\u96fb\u5727\u964d\u4e0b\u306b\u5bfe\u3059\u308b\u8010\u6027\u304c\u9ad8\u3044<\/li>\n<li><strong>\u304a\u3059\u3059\u3081<\/strong>\uff1aPV\u30bd\u30fc\u30b9\u56de\u8def\u306eNEC 690.8\u8981\u4ef6\u306b\u5f93\u3046<\/li>\n<\/ul>\n<hr \/>\n<h2>\u96fb\u5727\u964d\u4e0b\u554f\u984c\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/h2>\n<h3>\u904e\u5ea6\u306e\u96fb\u5727\u964d\u4e0b\u306e\u75c7\u72b6<\/h3>\n<ul>\n<li>\ud83d\udd34 <strong>\u7167\u660e\u304c\u6697\u304f\u306a\u308b<\/strong> \u30a2\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u306e\u8d77\u52d5\u6642<\/li>\n<li>\ud83d\udd34 <strong>\u30e2\u30fc\u30bf\u30fc\u304c\u71b1\u304f\u306a\u308b<\/strong> \u307e\u305f\u306f\u8d77\u52d5\u306b\u5931\u6557\u3059\u308b<\/li>\n<li>\ud83d\udd34 <strong>\u96fb\u5b50\u6a5f\u5668\u306e\u30ea\u30bb\u30c3\u30c8<\/strong> \u307e\u305f\u306f\u8aa4\u52d5\u4f5c<\/li>\n<li>\ud83d\udd34 <strong>GFCI\u306e\u8aa4\u30c8\u30ea\u30c3\u30d7<\/strong> \u9577\u3044\u914d\u7dda\u306e\u5834\u5408<\/li>\n<li>\ud83d\udd34 <strong>\u30a2\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u306e\u6027\u80fd\u4f4e\u4e0b<\/strong> \uff08\u52a0\u71b1\u304c\u9045\u3044\u3001\u51b7\u5374\u304c\u5f31\u3044\uff09<\/li>\n<\/ul>\n<h3>\u8a3a\u65ad\u624b\u9806<\/h3>\n<ol>\n<li><strong>\u30d1\u30cd\u30eb\u3067\u96fb\u5727\u3092\u6e2c\u5b9a<\/strong>\uff1a118\u301c122V\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\uff08\u516c\u79f0120V\uff09<\/li>\n<li><strong>\u904b\u8ee2\u4e2d\u306e\u8ca0\u8377\u3067\u96fb\u5727\u3092\u6e2c\u5b9a\u3059\u308b<\/strong>\uff1a\u30d1\u30cd\u30eb\u96fb\u5727\u306e3%\u4ee5\u5185\u3067\u3042\u308b\u3053\u3068<\/li>\n<li><strong>\u5b9f\u969b\u306e\u96fb\u5727\u964d\u4e0b\u3092\u8a08\u7b97\u3059\u308b<\/strong>\uff1a\u30d1\u30cd\u30eb\u96fb\u5727 \u2013 \u8ca0\u8377\u96fb\u5727<\/li>\n<li><strong>NEC\u306e\u63a8\u5968\u4e8b\u9805\u3068\u6bd4\u8f03\u3059\u308b<\/strong>\uff1a3% = 120V\u56de\u8def\u306e\u5834\u54083.6V<\/li>\n<\/ol>\n<h3>\u6539\u5584\u7b56\u306e\u30aa\u30d7\u30b7\u30e7\u30f3<\/h3>\n<p><strong>\u30aa\u30d7\u30b7\u30e7\u30f31<\/strong>: <strong>\u96fb\u7dda\u30b5\u30a4\u30ba\u3092\u5927\u304d\u304f\u3059\u308b<\/strong> \uff08\u6700\u3082\u6052\u4e45\u7684\u306a\u89e3\u6c7a\u7b56\uff09<br \/>\n<strong>\u30aa\u30d7\u30b7\u30e7\u30f32<\/strong>: <strong>\u30b5\u30d6\u30d1\u30cd\u30eb\u3092\u8a2d\u7f6e\u3059\u308b<\/strong> \u8ca0\u8377\u306e\u8fd1\u304f\u306b<br \/>\n<strong>\u30aa\u30d7\u30b7\u30e7\u30f33<\/strong>: <strong>\u8ca0\u8377\u3092\u518d\u5206\u914d\u3059\u308b<\/strong> \u3088\u308a\u77ed\u3044\u56de\u8def\u3078<br \/>\n<strong>\u30aa\u30d7\u30b7\u30e7\u30f34<\/strong>: <strong>240V\u306b\u5909\u63db\u3059\u308b<\/strong> \uff08\u4e92\u63db\u6027\u306e\u3042\u308b\u6a5f\u5668\u306e\u5834\u5408\uff09<\/p>\n<hr \/>\n<h2>\u9577\u8ddd\u96e2\u914d\u7dda\u7528\u306eVIOX\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3<\/h2>\n<p>\u96fb\u5727\u964d\u4e0b\u3092\u514b\u670d\u3059\u308b\u305f\u3081\u306b\u96fb\u7dda\u30b5\u30a4\u30ba\u3092\u5927\u304d\u304f\u3059\u308b\u3068\u3001\u4e00\u822c\u7684\u306a\u554f\u984c\u306b\u906d\u9047\u3057\u307e\u3059\u3002 <strong>\u3088\u308a\u592a\u3044\u96fb\u7dda\u306f\u6a19\u6e96\u7684\u306a\u30c7\u30d0\u30a4\u30b9\u7aef\u5b50\u306b\u9069\u5408\u3057\u306a\u3044<\/strong>.<\/p>\n<h3>VIOX\u88fd\u54c1\u306e\u7528\u9014<\/h3>\n<p><strong>1. \u7aef\u5b50\u53f0\u3068\u914d\u96fb\u30b9\u30c8\u30ea\u30c3\u30d7<\/strong><\/p>\n<p>8 AWG\u307e\u305f\u306f10 AWG\u306e\u30d5\u30a3\u30fc\u30c0\u30fc\u7dda\u304b\u308912 AWG\u306e\u5206\u5c90\u56de\u8def\u306b\u79fb\u884c\u3059\u308b\u5834\u5408\u3001VIOX\u7aef\u5b50\u53f0\u306f\u4ee5\u4e0b\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u5b89\u5168\u306a\u63a5\u7d9a<\/strong> \u7570\u306a\u308b\u96fb\u7dda\u30b2\u30fc\u30b8\u7528<\/li>\n<li><strong>\u898f\u683c\u306b\u6e96\u62e0\u3057\u305f<\/strong> \u96fb\u7dda\u9593\u306e\u63a5\u7d9a<\/li>\n<li><strong>\u7c21\u5358\u306a\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0<\/strong> \u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u306a\u63a5\u7d9a\u30dd\u30a4\u30f3\u30c8\u4ed8\u304d<\/li>\n<\/ul>\n<p><strong>2. \u30d8\u30d3\u30fc\u30c7\u30e5\u30fc\u30c6\u30a3\u30fc\u63a5\u7d9a\u30dc\u30c3\u30af\u30b9<\/strong><\/p>\n<p>\u5c4b\u5916\u306e\u9577\u8ddd\u96e2\u914d\u7dda\u306e\u5834\u5408\u3001VIOX\u306e\u8010\u5019\u6027\u63a5\u7d9a\u30dc\u30c3\u30af\u30b9\u306f\u4ee5\u4e0b\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>IP65\/IP67\u5b9a\u683c<\/strong> \u904e\u9177\u306a\u74b0\u5883\u7528<\/li>\n<li><strong>\u5927\u304d\u306a\u96fb\u7dda\u5bb9\u91cf<\/strong> \u30b5\u30a4\u30ba\u30a2\u30c3\u30d7\u3055\u308c\u305f\u96fb\u7dda\u7528<\/li>\n<li><strong>\u30b9\u30c8\u30ec\u30a4\u30f3\u30fb\u30ea\u30ea\u30fc\u30d5<\/strong> \u5730\u4e0b\u914d\u7ba1\u3078\u306e\u79fb\u884c\u7528<\/li>\n<\/ul>\n<p><strong>3. \u30b5\u30d6\u30d1\u30cd\u30eb\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3<\/strong><\/p>\n<p>\u30b5\u30d6\u30d1\u30cd\u30eb\u3092\u8a2d\u7f6e\u3059\u308b\u3068\u3001\u5206\u5c90\u56de\u8def\u306e\u8ddd\u96e2\u304c\u77ed\u7e2e\u3055\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30e1\u30a4\u30f3\u30d1\u30cd\u30eb \u2192 \u30b5\u30d6\u30d1\u30cd\u30eb<\/strong>\uff1a6 AWG\u4ee5\u4e0a\u3092\u4f7f\u7528<\/li>\n<li><strong>\u30b5\u30d6\u30d1\u30cd\u30eb \u2192 \u8ca0\u8377<\/strong>\uff1a\u77ed\u3044\u914d\u7dda\u306b\u306f\u6a19\u6e96\u306e12 AWG<\/li>\n<li><strong>\u7d50\u679c<\/strong>\uff1a\u3059\u3079\u3066\u306e\u56de\u8def\u3067\u6700\u9069\u306a\u96fb\u5727\u964d\u4e0b<\/li>\n<\/ul>\n<hr \/>\n<h2>\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n<h3>20\u30a2\u30f3\u30da\u30a2\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u306712\/2\u30ef\u30a4\u30e4\u30fc\u3092100\u30d5\u30a3\u30fc\u30c8\u914d\u7dda\u3067\u304d\u307e\u3059\u304b\uff1f<\/h3>\n<p><strong>\u306f\u3044\u3001\u305f\u3060\u3057\u5236\u9650\u304c\u3042\u308a\u307e\u3059\u3002.<\/strong> \u5168\u8ca0\u837720A\u306e\u5834\u5408\u3001\u96fb\u5727\u964d\u4e0b\u306f\u7d04 <strong>5.2%<\/strong>, \u3067\u3042\u308a\u3001NEC\u306e3%\u306e\u63a8\u5968\u3092\u8d85\u3048\u307e\u3059\u3002 \u3053\u308c\u306f\u4ee5\u4e0b\u306e\u5834\u5408\u306b\u8a31\u5bb9\u3055\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u4f7f\u7528\u983b\u5ea6\u306e\u4f4e\u3044\u8ca0\u8377<\/li>\n<li>12\u30a2\u30f3\u30da\u30a2\u672a\u6e80\u306e\u56de\u8def<\/li>\n<li>240V\u56de\u8def\uff08\u96fb\u5727\u964d\u4e0b\u7387\u306f\u534a\u5206\u306b\u306a\u308a\u307e\u3059\uff09<\/li>\n<\/ul>\n<p>\u9023\u7d9a20A\u8ca0\u8377\u306e\u5834\u5408\u3001, <strong>10 AWG\u96fb\u7dda\u306b\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3059\u308b<\/strong>.<\/p>\n<h3>\u96fb\u7dda\u306e\u9577\u3055\u306f\u3001\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u30c8\u30ea\u30c3\u30d7\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u304b\uff1f<\/h3>\n<p><strong>\u306f\u3044\u3001\u304b\u306a\u308a\u3002<\/strong> \u914d\u7dda\u304c\u9577\u304f\u306a\u308b\u3068\u56de\u8def\u62b5\u6297\u304c\u5897\u52a0\u3057\u3001\u77ed\u7d61\u96fb\u6d41\u304c\u6e1b\u5c11\u3057\u307e\u3059\u3002 \u6975\u7aef\u306a\u5834\u5408\uff08200\u30d5\u30a3\u30fc\u30c8\u4ee5\u4e0a\uff09\u3001\u5730\u7d61\u96fb\u6d41\u304c\u4f4e\u3059\u304e\u3066\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u77ac\u6642\u78c1\u6c17\u30c8\u30ea\u30c3\u30d7\u3092\u4f5c\u52d5\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u305a\u3001 <strong>\u706b\u707d\u306e\u5371\u967a<\/strong>. \u304c\u751f\u3058\u307e\u3059\u3002 \u4e88\u60f3\u3055\u308c\u308b\u77ed\u7d61\u96fb\u6d41\u304c\u30d6\u30ec\u30fc\u30ab\u30fc\u5b9a\u683c\u306e5\u500d\u3092\u8d85\u3048\u308b\u3053\u3068\u3092\u5e38\u306b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n<h3>\u8ddd\u96e2\u306b\u95a2\u3057\u3066\u300112\/2\u96fb\u7dda\u306812\/3\u96fb\u7dda\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p><strong>\u96fb\u7dda\u306e\u8ddd\u96e2\u5bb9\u91cf\u306f\u540c\u3058\u3067\u3059\u3002.<\/strong> \u6570\u5b57\u306f\u96fb\u7dda\u30b2\u30fc\u30b8\u3067\u306f\u306a\u304f\u3001\u5c0e\u4f53\u6570\uff082\u307e\u305f\u306f3\u672c\u306e\u7d76\u7e01\u5c0e\u4f53\uff09\u3092\u6307\u3057\u307e\u3059\u3002 \u3069\u3061\u3089\u3082\u540c\u3058\u62b5\u6297\u306e12 AWG\u5c0e\u4f53\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002 12\/3\u306f\u4ee5\u4e0b\u304c\u5fc5\u8981\u306a\u5834\u5408\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u4e09\u8def\u30b9\u30a4\u30c3\u30c1\u56de\u8def<\/li>\n<li>\u591a\u7dda\u5f0f\u5206\u5c90\u56de\u8def<\/li>\n<li>240V + \u4e2d\u6027\u7dda\u7528\u306e\u500b\u5225\u306e\u6d3b\u7dda\u5c0e\u4f53<\/li>\n<\/ul>\n<h3>\u9577\u8ddd\u96e2\u914d\u7dda\u306b\u304a\u3044\u3066\u3001\u30b3\u30b9\u30c8\u524a\u6e1b\u306e\u305f\u3081\u306b\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u96fb\u7dda\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u304b\uff1f<\/h3>\n<p><strong>\u306f\u3044\u3001\u305f\u3060\u30571\u30b2\u30fc\u30b8\u5927\u304d\u304f\u3057\u307e\u3059\u3002.<\/strong> \u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u306f\u9285\u3088\u308a\u3082\u62b5\u6297\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u7528\u9014 <strong>10 AWG\u30a2\u30eb\u30df\u30cb\u30a6\u30e0<\/strong> 12 AWG\u9285\u306e\u4ee3\u308f\u308a\u306b<\/li>\n<li>\u5fc5\u8981 <strong>\u9178\u5316\u9632\u6b62\u5264<\/strong> \u63a5\u7d9a\u90e8\u306b<\/li>\n<li>\u4f7f\u7528\u5fc5\u9808 <strong>AL\u5b9a\u683c\u306e\u6a5f\u5668<\/strong> (CO\/ALR\u30de\u30fc\u30ad\u30f3\u30b0)<\/li>\n<li><strong>\u30b3\u30b9\u30c8\u524a\u6e1b<\/strong>: \u592a\u3044\u96fb\u7dda\u30b5\u30a4\u30ba\u306e\u5834\u5408\u300130\uff5e40%\u5b89\u4fa1<\/li>\n<\/ul>\n<h3>1\u3064\u306e\u56de\u8def\u306b\u8907\u6570\u306e\u30b3\u30f3\u30bb\u30f3\u30c8\u304c\u3042\u308b\u5834\u5408\u306e\u96fb\u5727\u964d\u4e0b\u306f\u3069\u306e\u3088\u3046\u306b\u8a08\u7b97\u3057\u307e\u3059\u304b\uff1f<\/h3>\n<p>\u4f7f\u7528\u3059\u308b <strong>\u6700\u3082\u9060\u3044\u30b3\u30f3\u30bb\u30f3\u30c8<\/strong> \u305d\u3057\u3066 <strong>\u6700\u5927\u540c\u6642\u8ca0\u8377<\/strong>. \u4f8b\uff1a<\/p>\n<ul>\n<li>\u56de\u8def\u306b\u306f120\u30d5\u30a3\u30fc\u30c8\u306b\u308f\u305f\u3063\u30668\u3064\u306e\u30b3\u30f3\u30bb\u30f3\u30c8\u304c\u3042\u308b<\/li>\n<li>\u4eee\u5b9a\u3059\u308b <strong>\u30d6\u30ec\u30fc\u30ab\u30fc\u5b9a\u683c\u306e80%<\/strong> (20A\u56de\u8def\u306e\u5834\u540816A)<\/li>\n<li>\u96fb\u5727\u964d\u4e0b\u3092\u8a08\u7b97\u3059\u308b <strong>\u6700\u5f8c\u306e\u30b3\u30f3\u30bb\u30f3\u30c8<\/strong> 16A\u3067<\/li>\n<li>\u3053\u308c\u306f\u4fdd\u5b88\u7684\u306a\u6700\u60aa\u306e\u30b7\u30ca\u30ea\u30aa\u3092\u63d0\u4f9b\u3059\u308b<\/li>\n<\/ul>\n<h3>\u96fb\u7dda\u306e\u7a2e\u985e\uff08THHN \u5bfe Romex\uff09\u306f\u3001\u6700\u5927\u914d\u7dda\u8ddd\u96e2\u306b\u5f71\u97ff\u3057\u307e\u3059\u304b\uff1f<\/h3>\n<p><strong>\u3044\u3044\u3048\u3002<\/strong> \u96fb\u5727\u964d\u4e0b\u306f\u4ee5\u4e0b\u306e\u307f\u306b\u4f9d\u5b58\u3059\u308b\uff1a<\/p>\n<ul>\n<li>\u96fb\u7dda\u30b2\u30fc\u30b8 (AWG)<\/li>\n<li>\u5c0e\u4f53\u6750\u6599 (\u9285 vs. \u30a2\u30eb\u30df\u30cb\u30a6\u30e0)<\/li>\n<li>\u96fb\u6d41 (\u30a2\u30f3\u30da\u30a2)<\/li>\n<li>\u8ddd\u96e2 (\u30d5\u30a3\u30fc\u30c8)<\/li>\n<\/ul>\n<p>\u7d76\u7e01\u30bf\u30a4\u30d7 (THHN\u3001THWN\u3001NM-B) \u306f\u5f71\u97ff\u3059\u308b <strong>\u8a31\u5bb9\u96fb\u6d41<\/strong> \u305d\u3057\u3066 <strong>\u8a2d\u7f6e\u65b9\u6cd5<\/strong>, \u3001\u305f\u3060\u3057\u62b5\u6297\u307e\u305f\u306f\u96fb\u5727\u964d\u4e0b\u306b\u306f\u5f71\u97ff\u3057\u306a\u3044\u3002.<\/p>\n<hr \/>\n<h2>\u7d50\u8ad6\uff1a\u96fb\u7dda\u30b5\u30a4\u30ba\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u30a2\u30d7\u30ed\u30fc\u30c1<\/h2>\n<p>\u300c20\u30a2\u30f3\u30da\u30a2\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u306712\/2\u96fb\u7dda\u3092\u3069\u3053\u307e\u3067\u914d\u7dda\u3067\u304d\u307e\u3059\u304b\uff1f\u300d\u3068\u3044\u3046\u8cea\u554f\u306b\u306f\u3001\u5358\u4e00\u306e\u7b54\u3048\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u308c\u306f\u4ee5\u4e0b\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002<\/p>\n<ol>\n<li><strong>\u30b7\u30b9\u30c6\u30e0\u96fb\u5727<\/strong> (120V vs. 240V)<\/li>\n<li><strong>\u5b9f\u969b\u306e\u8ca0\u8377\u96fb\u6d41<\/strong> (\u5358\u306a\u308b\u30d6\u30ec\u30fc\u30ab\u30fc\u5b9a\u683c\u3067\u306f\u306a\u3044)<\/li>\n<li><strong>\u8a31\u5bb9\u96fb\u5727\u964d\u4e0b<\/strong> (3%\u63a8\u5968\u30015%\u6700\u5927)<\/li>\n<li><strong>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u611f\u5ea6<\/strong> (\u30e2\u30fc\u30bf\u30fc\u3068\u96fb\u5b50\u6a5f\u5668\u306f\u3088\u308a\u53b3\u3057\u3044\u8a31\u5bb9\u8aa4\u5dee\u304c\u5fc5\u8981)<\/li>\n<li><strong>\u5b89\u5168\u4e0a\u306e\u8003\u616e\u4e8b\u9805<\/strong> (\u9069\u5207\u306a\u30d6\u30ec\u30fc\u30ab\u30fc\u52d5\u4f5c\u306e\u305f\u3081\u306e\u6545\u969c\u30eb\u30fc\u30d7\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9)<\/li>\n<\/ol>\n<p><strong>\u4e00\u822c\u7684\u306a\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3<\/strong>:<\/p>\n<ul>\n<li><strong>50\u30d5\u30a3\u30fc\u30c8\u672a\u6e80<\/strong>: 12 AWG\u306f20A\u56de\u8def\u306b\u9069\u3057\u3066\u3044\u308b<\/li>\n<li><strong>50\uff5e75\u30d5\u30a3\u30fc\u30c8<\/strong>: \u5168\u8ca0\u8377\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u306f10 AWG\u3092\u691c\u8a0e\u3059\u308b<\/li>\n<li><strong>75\uff5e100\u30d5\u30a3\u30fc\u30c8<\/strong>: 20A\u8ca0\u8377\u306b\u306f10 AWG\u3092\u4f7f\u7528\u3059\u308b<\/li>\n<li><strong>100\u30d5\u30a3\u30fc\u30c8\u4ee5\u4e0a<\/strong>: 8 AWG\u3092\u4f7f\u7528\u3059\u308b\u304b\u3001\u30b5\u30d6\u30d1\u30cd\u30eb\u3092\u8a2d\u7f6e\u3059\u308b<\/li>\n<\/ul>\n<p><strong>\u30d7\u30ed\u30d5\u30a7\u30c3\u30b7\u30e7\u30ca\u30eb\u306a\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/strong>: \u8ff7\u3063\u305f\u5834\u5408\u306f\u3001, <strong>1\u3064\u4e0a\u306e\u30b2\u30fc\u30b8\u306b\u30b5\u30a4\u30ba\u30a2\u30c3\u30d7\u3059\u308b<\/strong>. \u3002\u9650\u754c\u8cbb\u7528\u306f\u3001\u4ee5\u4e0b\u306e\u9577\u671f\u7684\u306a\u5229\u70b9\u3068\u6bd4\u8f03\u3057\u3066\u6700\u5c0f\u9650\u3067\u3059\u3002<\/p>\n<ul>\n<li>\u30a8\u30cd\u30eb\u30ae\u30fc\u6d6a\u8cbb\u306e\u524a\u6e1b<\/li>\n<li>\u6a5f\u5668\u306e\u5bff\u547d\u5ef6\u9577<\/li>\n<li>\u5b89\u5168\u30de\u30fc\u30b8\u30f3\u306e\u5411\u4e0a<\/li>\n<li>\u5c06\u6765\u3092\u898b\u636e\u3048\u305f\u5bb9\u91cf<\/li>\n<\/ul>\n<p>\u8907\u96d1\u306a\u8a2d\u7f6e\u307e\u305f\u306f\u5546\u7528\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5834\u5408\u306f\u3001\u8cc7\u683c\u306e\u3042\u308b\u96fb\u6c17\u6280\u5e2b\u306b\u76f8\u8ac7\u3057\u3001\u4ee5\u4e0b\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044 <strong>\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u9577\u8ddd\u96e2\u914d\u96fb\u7528\u306b\u8a2d\u8a08\u3055\u308c\u305fVIOX\u96fb\u6c17\u90e8\u54c1<\/strong> \u5185\u90e8\u30ea\u30f3\u30af.<\/p>\n<hr \/>\n<h2>\u95a2\u9023\u3059\u308b\u6280\u8853\u30ac\u30a4\u30c0\u30f3\u30b9\u306b\u3064\u3044\u3066\u306f\u3001\u3053\u308c\u3089\u306eVIOX\u30ea\u30bd\u30fc\u30b9\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/h2>\n<p>\u2013 \u9ad8\u30a2\u30f3\u30da\u30a2\u56de\u8def\u306e\u5305\u62ec\u7684\u306a\u96fb\u7dda\u30b5\u30a4\u30ba\u9078\u5b9a<\/p>\n<ul>\n<li><a href=\"https:\/\/test.viox.com\/ja\/50-amp-wire-size-selection-guide\/\">50\u30a2\u30f3\u30da\u30a2\u96fb\u7dda\u30b5\u30a4\u30ba\u9078\u629e\u30ac\u30a4\u30c9<\/a> \u96fb\u6c17\u7684\u30c7\u30a3\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\uff1a\u6e29\u5ea6\u3001\u9ad8\u5ea6\u3001\u304a\u3088\u3073\u30b0\u30eb\u30fc\u30d7\u5316\u4fc2\u6570<\/li>\n<li><a href=\"https:\/\/test.viox.com\/ja\/electrical-derating-temperature-altitude-grouping-factors\/\">\u2013 \u74b0\u5883\u6761\u4ef6\u304c\u96fb\u7dda\u5bb9\u91cf\u306b\u4e0e\u3048\u308b\u5f71\u97ff<\/a> \u2013 \u9ad8\u5730\u8a2d\u7f6e\u306b\u95a2\u3059\u308b\u91cd\u8981\u306a\u8003\u616e\u4e8b\u9805<\/li>\n<li><a href=\"https:\/\/test.viox.com\/ja\/circuit-breaker-altitude-derating-guide\/\">\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u9ad8\u5ea6\u30c7\u30a3\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30ac\u30a4\u30c9<\/a> \u30b1\u30fc\u30d6\u30eb\u30b5\u30a4\u30ba\u306e\u7a2e\u985e\uff1amm\u00b2 vs AWG vs BS\u5909\u63db\u30ac\u30a4\u30c9<\/li>\n<li><a href=\"https:\/\/test.viox.com\/ja\/cable-size-types-mm-awg-bs-conversion-guide\/\">\u2013 \u56fd\u969b\u7684\u306a\u96fb\u7dda\u30b5\u30a4\u30ba\u898f\u683c<\/a> \u2013 \u56de\u8def\u4fdd\u8b77\u306b\u5bfe\u3059\u308b\u6e29\u5ea6\u306e\u5f71\u97ff<\/li>\n<li><a href=\"https:\/\/test.viox.com\/ja\/mcb-ambient-temperature-ratings-and-derating-factors\/\">MCB\u306e\u5468\u56f2\u6e29\u5ea6\u5b9a\u683c\u3068\u30c7\u30a3\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u4fc2\u6570<\/a> \u2013 Temperature effects on circuit protection<\/li>\n<li><a href=\"https:\/\/test.viox.com\/ja\/how-to-calculate-short-circuit-current-for-mcb\/\">\u3069\u306e\u3088\u3046\u306b\u8a08\u7b97\u77ed\u7d61\u96fb\u6d41MCB<\/a> \u2013 \u5730\u7d61\u96fb\u6d41\u8a08\u7b97\u306e\u7406\u89e3<\/li>\n<li><a href=\"https:\/\/test.viox.com\/ja\/standard-breaker-sizes\/\">\u6a19\u6e96\u7684\u306a\u30d6\u30ec\u30fc\u30ab\u30fc\u30b5\u30a4\u30ba<\/a> \u2013 \u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u5b9a\u683c\u306b\u95a2\u3059\u308b\u5b8c\u5168\u30ac\u30a4\u30c9<\/li>\n<li><a href=\"https:\/\/test.viox.com\/ja\/homeowners-guide-to-circuit-breaker-sizing-and-load-calculation\/\">\u56de\u8def\u906e\u65ad\u5668\u306e\u30b5\u30a4\u30b8\u30f3\u30b0\u3068\u8ca0\u8377\u8a08\u7b97\u306b\u95a2\u3059\u308b\u4f4f\u5b85\u6240\u6709\u8005\u5411\u3051\u30ac\u30a4\u30c9<\/a> \u2013 \u5b9f\u8df5\u7684\u306a\u4f4f\u5b85\u914d\u7dda\u30ac\u30a4\u30c0\u30f3\u30b9<\/li>\n<\/ul>\n<hr \/>\n<p><strong>VIOX\u306b\u3064\u3044\u3066<\/strong>: VIOX Electric\u306f\u3001\u96fb\u6c17\u6a5f\u5668\u306e\u4e3b\u8981\u306aB2B\u30e1\u30fc\u30ab\u30fc\u3067\u3042\u308a\u3001\u4f4f\u5b85\u3001\u5546\u696d\u3001\u304a\u3088\u3073\u7523\u696d\u7528\u9014\u5411\u3051\u306e\u56de\u8def\u4fdd\u8b77\u30c7\u30d0\u30a4\u30b9\u3001\u7aef\u5b50\u53f0\u3001\u30b8\u30e3\u30f3\u30af\u30b7\u30e7\u30f3\u30dc\u30c3\u30af\u30b9\u3001\u304a\u3088\u3073\u914d\u96fb\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3092\u5c02\u9580\u3068\u3057\u3066\u3044\u307e\u3059\u3002\u5f53\u793e\u306e\u88fd\u54c1\u306f\u3001\u5b89\u5168\u6027\u3068\u6027\u80fd\u306b\u95a2\u3059\u308bNEC\u3001UL\u3001\u304a\u3088\u3073IEC\u898f\u683c\u3092\u6e80\u305f\u3059\u304b\u3001\u305d\u308c\u3092\u4e0a\u56de\u3063\u3066\u3044\u307e\u3059\u3002.<\/p>\n<\/div>\n<div class=\"simg-pop-btn\" style=\"top: 523.172px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 523.172px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 1796.33px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 1796.33px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 5097.41px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 5097.41px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 3072.02px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 3072.02px; left: 14px; display: none;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Key Takeaways Standard Distance: 12\/2 wire on a 20-amp breaker can safely run 50-60 feet at full load while maintaining the NEC-recommended 3% voltage drop Maximum Safe Distance: Up to 93 feet is possible with 3% voltage drop at 240V, but only 50-57 feet at 120V Load Matters: Actual usable distance depends heavily on the connected load\u2014lower amperage allows longer runs Safety Critical: Beyond recommended distances, fault loop impedance increases, potentially preventing circuit breakers from tripping during short circuits Upgrade Rule: For runs exceeding 60 feet at 20 amps, upgrade to 10 AWG; for 100+ feet, consider 8 AWG wire Understanding the Two Limits: Ampacity vs. Voltage Drop When electricians [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":21464,"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-21463","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/posts\/21463","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/comments?post=21463"}],"version-history":[{"count":1,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/posts\/21463\/revisions"}],"predecessor-version":[{"id":21465,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/posts\/21463\/revisions\/21465"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/media\/21464"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/media?parent=21463"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/categories?post=21463"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/tags?post=21463"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}