{"id":22869,"date":"2026-03-26T23:20:35","date_gmt":"2026-03-26T15:20:35","guid":{"rendered":"https:\/\/viox.com\/?p=22869"},"modified":"2026-03-26T23:23:59","modified_gmt":"2026-03-26T15:23:59","slug":"nec-125-percent-rule-continuous-loads","status":"publish","type":"post","link":"https:\/\/test.viox.com\/ja\/nec-125-percent-rule-continuous-loads\/","title":{"rendered":"\u9023\u7d9a\u8ca0\u8377\u306b\u95a2\u3059\u308bNEC 125%\u898f\u5247\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f"},"content":{"rendered":"<div class=\"product-intro\">\n<p>\u306b\u3064\u3044\u3066 <strong>\u9023\u7d9a\u8ca0\u8377\u306b\u95a2\u3059\u308bNEC 125%\u898f\u5247<\/strong> \u5206\u5c90\u56de\u8def\u307e\u305f\u306f\u30d5\u30a3\u30fc\u30c0\u30fc\u304c\u4f9b\u7d66\u3059\u308b\u5834\u5408\u3001 <strong>NEC\u7b2c625\u6761\u306b\u57fa\u3065\u304d\u3001EV\u5145\u96fb\u306f<\/strong>, \u904e\u96fb\u6d41\u4fdd\u8b77\u88c5\u7f6e\u3068\u95a2\u9023\u56de\u8def\u306e\u8a2d\u8a08\u306f\u3001\u305d\u306e\u8ca0\u8377\u3092 <strong>\u9023\u7d9a\u90e8\u5206\u306e125%\u3067\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/strong>, \u305f\u3060\u3057\u3001\u7279\u5b9a\u306e100%\u5b9a\u683c\u30a2\u30bb\u30f3\u30d6\u30ea\u306e\u4f8b\u5916\u304c\u9069\u7528\u3055\u308c\u308b\u5834\u5408\u3092\u9664\u304d\u307e\u3059\u3002.<\/p>\n<p>\u5b9f\u969b\u306b\u306f\u3001\u8ca0\u8377\u304c\u6700\u5927\u96fb\u6d41\u3067 <strong>3\u6642\u9593\u4ee5\u4e0a\u7a3c\u50cd\u3059\u308b\u3082\u306e<\/strong>, \u52d5\u4f5c\u3059\u308b\u3068\u4e88\u60f3\u3055\u308c\u308b\u5834\u5408\u3001\u56de\u8def\u306f\u901a\u5e38\u3001 <strong>\u306a\u3044<\/strong> \u305d\u306e\u96fb\u6d41\u306e\u6b63\u78ba\u306a100%\u3067\u30b5\u30a4\u30ba\u8a2d\u5b9a\u3055\u308c\u307e\u3059\u3002\u9023\u7d9a\u90e8\u5206\u306f\u3001125%\u306e\u8abf\u6574\u3092\u5ff5\u982d\u306b\u7f6e\u3044\u3066\u8a2d\u8a08\u306b\u7d44\u307f\u8fbc\u307e\u308c\u307e\u3059\u3002.<\/p>\n<p>\u3053\u308c\u306f\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u30b5\u30a4\u30ba\u8a2d\u5b9a\u3001\u5c0e\u4f53\u306e\u30b5\u30a4\u30ba\u8a2d\u5b9a\u3001EV\u5145\u96fb\u3001\u7167\u660e\u3001\u6696\u623f\u3001\u304a\u3088\u3073\u305d\u306e\u4ed6\u306e\u9577\u6642\u9593\u8ca0\u8377\u3067\u5e38\u306b\u554f\u984c\u306b\u306a\u308a\u307e\u3059\u3002\u306a\u305c\u306a\u3089\u3001\u7d19\u306e\u4e0a\u3067\u300c\u5341\u5206\u306b\u5927\u304d\u3044\u300d\u3068\u601d\u308f\u308c\u308b\u3082\u306e\u304c\u5909\u308f\u308b\u304b\u3089\u3067\u3059\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\/Engineer-reviewing-continuous-load-calculations-in-front-of-an-electrical-distribution-panel.webp\" alt=\"Engineer reviewing continuous load calculations in front of an electrical distribution panel\" \/><figcaption><em>\u7d4c\u9a13\u8c4a\u5bcc\u306a\u96fb\u6c17\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u3001\u914d\u96fb\u76e4\u3067\u306e\u9023\u7d9a\u8ca0\u8377\u8a08\u7b97\u3092\u6ce8\u610f\u6df1\u304f\u898b\u76f4\u3057\u3001NEC\u3078\u306e\u53b3\u683c\u306a\u6e96\u62e0\u3068\u5b89\u5168\u6027\u3092\u78ba\u4fdd\u3057\u3066\u3044\u307e\u3059\u3002.<\/em><\/figcaption><\/figure>\n<h2>\u8981\u70b9<\/h2>\n<ul>\n<li>A <strong>NEC\u7b2c625\u6761\u306b\u57fa\u3065\u304d\u3001EV\u5145\u96fb\u306f<\/strong> NEC\u306b\u304a\u3051\u308b\u9023\u7d9a\u8ca0\u8377\u306f\u3001\u4e00\u822c\u7684\u306b\u6700\u5927\u96fb\u6d41\u3067 <strong>3\u6642\u9593\u4ee5\u4e0a\u7a3c\u50cd\u3059\u308b\u3082\u306e<\/strong>.<\/li>\n<li>\u52d5\u4f5c\u3059\u308b\u3068\u4e88\u60f3\u3055\u308c\u308b\u8ca0\u8377\u3067\u3059\u3002 <strong>\u4e00\u822c\u7684\u306a\u7d4c\u9a13\u5247\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/strong>.<\/li>\n<li>\u9023\u7d9a\u8ca0\u8377 \u00d7 125%.<\/li>\n<li>\u3053\u306e\u898f\u5247\u306f\u3001\u5206\u5c90\u56de\u8def\u3068\u30d5\u30a3\u30fc\u30c0\u30fc\u306e\u30b5\u30a4\u30ba\u8a2d\u5b9a\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002 <strong>\u3053\u308c\u306f\u3001<\/strong> \u305d\u3057\u3066 <strong>\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u5b9a\u683c\u6c7a\u5b9a\u3068<\/strong>.<\/li>\n<li>\u5168\u4f53\u7684\u306a\u56de\u8def\u8a2d\u8a08\u306e\u4e21\u65b9\u306b\u3068\u3063\u3066\u91cd\u8981\u3067\u3059\u3002\u201c<\/li>\n<li>\u6700\u3082\u4e00\u822c\u7684\u306a\u9593\u9055\u3044\u306e1\u3064\u306f\u3001125%\u898f\u5247\u3092\u9593\u9055\u3063\u305f\u8ca0\u8377\u90e8\u5206\u306b\u9069\u7528\u3057\u305f\u308a\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u300c\u904e\u5927\u300d\u3067\u3042\u308b\u3068\u60f3\u5b9a\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u3067\u3059\u3002 <strong>NEC\u306e\u8aad\u8005\u306f\u901a\u5e38\u3001\u3053\u306e\u30c8\u30d4\u30c3\u30af\u3092\u6b63\u3057\u304f\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u3001\u6b21\u306e4\u3064\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u306e\u30a2\u30f3\u30ab\u30fc\u304c\u5fc5\u8981\u3067\u3059\u3002<\/strong>, <strong>\u7b2c100\u6761<\/strong>, <strong>210.19(A)(1)<\/strong>\u305d\u3057\u3066 <strong>210.20(A)<\/strong>.<\/li>\n<\/ul>\n<h2>110.14(C)<\/h2>\n<p>\u30e6\u30fc\u30b6\u30fc\u304cNEC 125%\u898f\u5247\u3092\u691c\u7d22\u3059\u308b\u7406\u7531<\/p>\n<ul>\n<li>\u3053\u306e\u30c8\u30d4\u30c3\u30af\u3092\u691c\u7d22\u3059\u308b\u307b\u3068\u3093\u3069\u306e\u4eba\u306f\u901a\u5e38\u3001\u6b21\u306e\u3044\u305a\u308c\u304b\u306e\u5b9f\u969b\u7684\u306a\u8cea\u554f\u306b\u7b54\u3048\u3088\u3046\u3068\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<li>\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u30b5\u30a4\u30ba\u3092\u8ca0\u8377\u3068\u307e\u3063\u305f\u304f\u540c\u3058\u306b\u3067\u304d\u306a\u3044\u306e\u306f\u306a\u305c\u3067\u3059\u304b\uff1f<\/li>\n<li>NEC\u306f\u3044\u3064\u8ca0\u8377\u3092\u300c\u9023\u7d9a\u300d\u3068\u898b\u306a\u3057\u307e\u3059\u304b\uff1f<\/li>\n<li>125%\u898f\u5247\u306f\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u3001\u5c0e\u4f53\u3001\u307e\u305f\u306f\u305d\u306e\u4e21\u65b9\u306b\u9069\u7528\u3055\u308c\u307e\u3059\u304b\uff1f<\/li>\n<\/ul>\n<p>48A\u306eEV\u5145\u96fb\u5668\u304c60A\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u306b\u306a\u308b\u3053\u3068\u304c\u591a\u3044\u306e\u306f\u306a\u305c\u3067\u3059\u304b\uff1f.<\/p>\n<h2>\u3053\u308c\u306f\u5b9f\u969b\u306b\u306f\u300c\u30b3\u30fc\u30c9\u306f\u4f55\u3068\u8a00\u3063\u3066\u3044\u307e\u3059\u304b\uff1f\u300d\u3068\u3044\u3046\u8cea\u554f\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u300c\u30b3\u30fc\u30c9\u306f\u79c1\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u3001\u5c0e\u4f53\u3001\u307e\u305f\u306f\u5145\u96fb\u5668\u56de\u8def\u306b\u3068\u3063\u3066\u4f55\u3092\u610f\u5473\u3057\u307e\u3059\u304b\uff1f\u300d\u3068\u3044\u3046\u8cea\u554f\u3067\u3059\u3002<\/h2>\n<p>NEC\u304c\u9023\u7d9a\u8ca0\u8377\u3067\u610f\u5473\u3059\u308b\u3053\u3068, <strong>NEC\u306e\u8aad\u8005\u306f\u901a\u5e38\u3001\u3053\u306e\u30c8\u30d4\u30c3\u30af\u3092\u6b63\u3057\u304f\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u3001\u6b21\u306e4\u3064\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u306e\u30a2\u30f3\u30ab\u30fc\u304c\u5fc5\u8981\u3067\u3059\u3002<\/strong> NEC\u306e\u7528\u8a9e\u3067\u306f\u3001 <strong>3\u6642\u9593\u4ee5\u4e0a\u7a3c\u50cd\u3059\u308b\u3082\u306e<\/strong>.<\/p>\n<p>\u9023\u7d9a\u8ca0\u8377\u3092\u3001\u6700\u5927\u96fb\u6d41\u304c.<\/p>\n<p>\u7d99\u7d9a\u3059\u308b\u3068\u4e88\u60f3\u3055\u308c\u308b\u8ca0\u8377\u3068\u3057\u3066\u5b9a\u7fa9\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u305d\u306e\u5b9a\u7fa9\u304c\u91cd\u8981\u306a\u306e\u306f\u3001\u77ed\u671f\u9593\u3060\u3051\u9ad8\u96fb\u6d41\u3092\u6d41\u3059\u56de\u8def\u306f\u3001\u9577\u6642\u9593\u306e\u52d5\u4f5c\u6642\u9593\u3067\u8ca0\u8377\u304c\u304b\u304b\u308b\u3068\u4e88\u60f3\u3055\u308c\u308b\u56de\u8def\u3068\u540c\u3058\u3088\u3046\u306b\u6271\u308f\u308c\u306a\u3044\u305f\u3081\u3067\u3059\u3002<\/li>\n<li>\u4e00\u822c\u7684\u306a\u9023\u7d9a\u8ca0\u8377\u306e\u4f8b\u306b\u306f\u3001\u6b21\u306e\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li>\u5546\u7528\u7167\u660e\u56de\u8def<\/li>\n<li>\u9577\u3044\u52d5\u4f5c\u6642\u9593\u306e\u6696\u623f\u8ca0\u8377<\/li>\n<li>EV\u5145\u96fb\u8ca0\u8377<\/li>\n<\/ul>\n<p>\u7279\u5b9a\u306e\u30d7\u30ed\u30bb\u30b9\u8ca0\u8377.<\/p>\n<h2>\u5b9a\u683c\u96fb\u6d41\u3067\u9577\u671f\u9593\u52d5\u4f5c\u3059\u308b\u3068\u4e88\u60f3\u3055\u308c\u308b\u6a5f\u5668<\/h2>\n<p>\u3059\u3079\u3066\u306e\u8ca0\u8377\u304c\u9023\u7d9a\u7684\u3067\u3042\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u4e88\u60f3\u3055\u308c\u308b\u52d5\u4f5c\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u304c\u91cd\u8981\u3067\u3042\u308a\u3001\u3053\u3053\u3067\u73fe\u5834\u3067\u306e\u5224\u65ad\u304c\u91cd\u8981\u306b\u306a\u308a\u307e\u3059\u3002\u5b9f\u969b\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001\u8a2d\u8a08\u8005\u304c\u8ca0\u8377\u3092\u91cd\u8981\u3067\u3042\u308b\u3068\u3044\u3046\u7406\u7531\u3060\u3051\u3067\u300c\u9023\u7d9a\u300d\u3067\u3042\u308b\u3068\u60f3\u5b9a\u3057\u305f\u308a\u3001\u30b5\u30a4\u30af\u30eb\u3059\u308b\u305f\u3081\u300c\u975e\u9023\u7d9a\u300d\u3067\u3042\u308b\u3068\u60f3\u5b9a\u3057\u305f\u308a\u3059\u308b\u3068\u3001\u8aa4\u3063\u305f\u5206\u985e\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u554f\u984c\u306f\u91cd\u8981\u6027\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u554f\u984c\u306f\u3001\u4e88\u60f3\u3055\u308c\u308b\u6700\u5927\u96fb\u6d41\u306e\u6301\u7d9a\u6642\u9593\u3067\u3059\u3002<\/p>\n<p><strong>NEC 125%\u898f\u5247\u304c\u5b9f\u969b\u306b\u8ff0\u3079\u3066\u3044\u308b\u3053\u3068.<\/strong><\/p>\n<p>\u96fb\u6c17\u6280\u5e2b\u3068\u8a2d\u8a08\u8005\u304c\u4f7f\u7528\u3059\u308b\u5b9f\u969b\u7684\u306a\u898f\u5247\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002 <strong>\u904e\u96fb\u6d41\u4fdd\u8b77\u88c5\u7f6e\u306e\u5b9a\u683c\u306f\u3001\u975e\u9023\u7d9a\u8ca0\u8377\u3068\u9023\u7d9a\u8ca0\u8377\u306e125%\u306e\u5408\u8a08\u4ee5\u4e0a\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/strong>. \u5206\u5c90\u56de\u8def\u306e\u5834\u5408\u3001\u305d\u306e\u30ed\u30b8\u30c3\u30af\u306f <strong>NEC 210.19(A)(1)<\/strong> NEC 210.20(A)\u306b\u53cd\u6620\u3055\u308c\u3066\u3044\u307e\u3059\u3002 <strong>NEC 215.2(A)(1)<\/strong> \/ <strong>215.3<\/strong> \u5c0e\u4f53\u5074\u3067\u306f\u3001\u540c\u3058\u9023\u7d9a\u8ca0\u8377\u30ed\u30b8\u30c3\u30af\u304c.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Technical-infographic-showing-the-NEC-125-percent-rule-for-continuous-loads.webp\" alt=\"Technical infographic showing the NEC 125 percent rule for continuous loads\" \/><figcaption><em>\u5206\u5c90\u56de\u8def\u5c0e\u4f53\u3068.<\/em><\/figcaption><\/figure>\n<p>\u30d5\u30a3\u30fc\u30c0\u30fc\u8a2d\u8a08\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u5206\u5c90\u56de\u8def\u3068OCPD\u306e\u30b5\u30a4\u30ba\u8a2d\u5b9a\u306b\u95a2\u3059\u308bNEC 125%\u898f\u5247\u306e\u8a08\u7b97\u3092\u5206\u89e3\u3059\u308b\u8a73\u7d30\u306a\u6280\u8853\u30a4\u30f3\u30d5\u30a9\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u3002<\/li>\n<li>\u5e73\u6613\u306a\u82f1\u8a9e\u3067\uff1a<\/li>\n<\/ul>\n<p>\u8ca0\u8377\u304c\u975e\u9023\u7d9a\u306e\u5834\u5408\u3001\u901a\u5e38\u306f100%\u3067\u30ab\u30a6\u30f3\u30c8\u3055\u308c\u307e\u3059.<\/p>\n<h2>\u8ca0\u8377\u304c\u9023\u7d9a\u306e\u5834\u5408\u3001\u901a\u5e38\u306f125%\u3067\u30ab\u30a6\u30f3\u30c8\u3055\u308c\u307e\u3059<\/h2>\n<p>\u305d\u306e\u305f\u3081\u3001\u5b9f\u969b\u306e\u8a2d\u8a08\u306b\u95a2\u3059\u308b\u8b70\u8ad6\u306f\u30d6\u30ec\u30fc\u30ab\u30fc\u3060\u3051\u3088\u308a\u3082\u5e83\u7bc4\u56f2\u3067\u3042\u308b\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001\u3053\u306e\u898f\u5247\u306f\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u30b5\u30a4\u30ba\u8a2d\u5b9a\u306b\u95a2\u9023\u3057\u3066\u3088\u304f\u8b70\u8ad6\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><code>\u30b3\u30a2\u30d5\u30a9\u30fc\u30df\u30e5\u30e9<\/code><\/p>\n<p>\u6df7\u5408\u8ca0\u8377\u306e\u5834\u5408\uff1a<\/p>\n<p><code>\u5fc5\u8981\u306a\u56de\u8def\u306e\u57fa\u790e = \u975e\u9023\u7d9a\u8ca0\u8377 + (\u9023\u7d9a\u8ca0\u8377 \u00d7 125%)<\/code><\/p>\n<h2>\u7d14\u7c8b\u306b\u9023\u7d9a\u8ca0\u8377\u306e\u5834\u5408\uff1a<\/h2>\n<p>\u5fc5\u8981\u306a\u56de\u8def\u306e\u57fa\u790e = \u9023\u7d9a\u8ca0\u8377 \u00d7 125% <strong>\u4f8b1\uff1a\u5358\u7d14\u306a\u9023\u7d9a\u8ca0\u8377<\/strong>, \u8ca0\u8377\u304c<\/p>\n<p><code>40A \u00d7 125% = 50A<\/code><\/p>\n<p>\u3064\u307e\u308a\u3001\u8ca0\u8377\u304c\u672c\u5f53\u306b40A\u3067\u9023\u7d9a\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u901a\u5e38\u3001\u56de\u8def\u8a2d\u8a08\u306f40A\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u306b\u57fa\u3065\u3044\u3066\u884c\u3046\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u8a2d\u8a08\u306e\u57fa\u6e96\u306f50A\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n<h2>\u4f8b2\uff1a\u6df7\u5408\u8ca0\u8377<\/h2>\n<p>\u56de\u8def\u304c\u4ee5\u4e0b\u3092\u4f9b\u7d66\u3059\u308b\u5834\u5408\uff1a<\/p>\n<ul>\n<li>16A \u975e\u9023\u7d9a<\/li>\n<li>24A \u9023\u7d9a<\/li>\n<\/ul>\n<p>\u6b21\u306b\uff1a<\/p>\n<p><code>16A + (24A \u00d7 125%) = 16A + 30A = 46A<\/code><\/p>\n<p>\u3064\u307e\u308a\u3001\u56de\u8def\u306e\u57fa\u6e96\u306f46A\u306b\u306a\u308a\u300140A\u306b\u306f\u306a\u308a\u307e\u305b\u3093\u3002.<\/p>\n<h2>\u4f8b3\uff1aEV\u5145\u96fb\u304c\u3088\u304f\u8a71\u984c\u306b\u306a\u308b\u7406\u7531<\/h2>\n<p>EV\u5145\u96fb\u306f\u3001EV\u8ca0\u8377\u304c\u9023\u7d9a\u3068\u898b\u306a\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u305f\u3081\u3001\u6700\u3082\u4e00\u822c\u7684\u306a\u73fe\u4ee3\u306e\u4f8b\u306e1\u3064\u3067\u3059\u3002.<\/p>\n<p>\u5145\u96fb\u5668\u306e\u9023\u7d9a\u51fa\u529b\u96fb\u6d41\u304c <strong>48A<\/strong>, \u306e\u5834\u5408\u3001\u30b5\u30a4\u30b8\u30f3\u30b0\u306e\u57fa\u6e96\u306f\u901a\u5e38\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><code>48A \u00d7 125% = 60A<\/code><\/p>\n<p>\u305d\u306e\u305f\u3081\u300148A\u306e\u5145\u96fb\u6a5f\u5668\u306f\u3001NEC\u306b\u57fa\u3065\u304f\u8b70\u8ad6\u3067\u306f\u300160A\u306e\u5206\u5c90\u56de\u8def\u5b9a\u683c\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u5b9f\u969b\u306b\u306f\u3001\u3053\u308c\u306f\u96fb\u6c17\u6280\u5e2b\u304c125%\u30eb\u30fc\u30eb\u3092\u521d\u3081\u3066\u8a18\u61b6\u306b\u6b8b\u308b\u5f62\u3067\u77e5\u308b\u6700\u3082\u4e00\u822c\u7684\u306a\u5834\u6240\u306e1\u3064\u3067\u3059\u3002.<\/p>\n<p>\u96a3\u63a5\u3059\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u306b\u3064\u3044\u3066\u306f\u3001\u4ee5\u4e0b\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/test.viox.com\/ja\/ev-charger-circuit-breaker-sizing-guide-7kw-22kw\/\">EV\u5145\u96fb\u5668\u306e\u56de\u8def\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u30b5\u30a4\u30b8\u30f3\u30b0\u30ac\u30a4\u30c9<\/a>.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Comparison-infographic-showing-continuous-load-versus-noncontinuous-load-for-NEC-sizing.webp\" alt=\"Comparison infographic showing continuous load versus noncontinuous load for NEC sizing\" \/><figcaption><em>\u9023\u7d9a\u8ca0\u8377\u3068\u975e\u9023\u7d9a\u8ca0\u8377\u306e\u69cb\u9020\u7684\u306a\u9055\u3044\u3092\u8996\u899a\u7684\u306b\u6bd4\u8f03\u3057\u3001EV\u5145\u96fb\u3092\u4e3b\u8981\u306a\u4f8b\u3068\u3057\u3066\u5f37\u8abf\u3057\u3066\u3044\u307e\u3059\u3002.<\/em><\/figcaption><\/figure>\n<h2>\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u30b5\u30a4\u30b8\u30f3\u30b0\u3068\u5c0e\u4f53\u306e\u30b5\u30a4\u30b8\u30f3\u30b0<\/h2>\n<p>\u3053\u308c\u306f\u3001\u591a\u304f\u306e\u8a18\u4e8b\u304c\u3042\u3044\u307e\u3044\u306b\u306a\u308a\u3059\u304e\u308b\u7b87\u6240\u3067\u3059\u3002.<\/p>\n<p>\u30e6\u30fc\u30b6\u30fc\u306f\u3088\u304f\u300c125%\u30eb\u30fc\u30eb\u306f\u30d6\u30ec\u30fc\u30ab\u30fc\u3068\u96fb\u7dda\u306e\u3069\u3061\u3089\u306b\u9069\u7528\u3055\u308c\u307e\u3059\u304b\uff1f\u300d\u3068\u8cea\u554f\u3057\u307e\u3059\u3002\u5b9f\u969b\u7684\u306a\u7b54\u3048\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002 <strong>\u56de\u8def\u8a2d\u8a08\u306e\u30ed\u30b8\u30c3\u30af\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u3068\u5c0e\u4f53\u306e\u4e21\u65b9\u306e\u6c7a\u5b9a\u3092\u6b63\u3057\u3044NEC\u306e\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3067\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/strong><\/p>\n<h3>\u30d6\u30ec\u30fc\u30ab\u30fc\u5074<\/h3>\n<p>\u9023\u7d9a\u8ca0\u8377\u3092\u4f9b\u7d66\u3059\u308b\u5206\u5c90\u56de\u8def\u306e\u5834\u5408\u3001\u904e\u96fb\u6d41\u4fdd\u8b77\u30c7\u30d0\u30a4\u30b9\u306f\u901a\u5e38\u3001\u5fc5\u8981\u306a\u8ca0\u8377\u57fa\u6e96\u3092\u4e0b\u56de\u3089\u306a\u3044\u3088\u3046\u306b\u9078\u629e\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u6700\u3082\u76f4\u63a5\u7684\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u3066\u3044\u308b\u90e8\u5206\u3067\u3059\u3002 <strong>\u904e\u96fb\u6d41\u4fdd\u8b77\u88c5\u7f6e\u306e\u5b9a\u683c\u306f\u3001\u975e\u9023\u7d9a\u8ca0\u8377\u3068\u9023\u7d9a\u8ca0\u8377\u306e125%\u306e\u5408\u8a08\u4ee5\u4e0a\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/strong>.<\/p>\n<h3>\u5c0e\u4f53\u5074<\/h3>\n<p>\u5c0e\u4f53\u3082\u3001\u9069\u7528\u3055\u308c\u308bNEC\u898f\u5247\u304a\u3088\u3073\u8a2d\u7f6e\u6761\u4ef6\u4e0b\u3067\u3001\u8a31\u5bb9\u96fb\u6d41\u5bb9\u91cf\u304c\u5b9f\u969b\u306e\u8a2d\u8a08\u8981\u4ef6\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u3088\u3046\u306b\u8a55\u4fa1\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u304c\u5206\u5c90\u56de\u8def\u306b\u3068\u3063\u3066\u91cd\u8981\u306b\u306a\u308b\u7b87\u6240\u3067\u3059\u3002 <strong>NEC 210.19(A)(1)<\/strong> \u304c\u5206\u5c90\u56de\u8def\u306b\u3068\u3063\u3066\u91cd\u8981\u306b\u306a\u308b\u7b87\u6240\u3067\u3059\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\/Technical-diagram-showing-how-the-NEC-125-percent-rule-affects-breaker-and-conductor-sizing.webp\" alt=\"Technical diagram showing how the NEC 125 percent rule affects breaker and conductor sizing\" \/><figcaption><em>125%\u306e\u5b89\u5168\u30de\u30fc\u30b8\u30f3\u304c\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u9078\u629e\u3068\u5c0e\u4f53\u7dda\u306e\u30b5\u30a4\u30b8\u30f3\u30b0\u306e\u4e21\u65b9\u306b\u3069\u306e\u3088\u3046\u306b\u76f4\u63a5\u5f71\u97ff\u3059\u308b\u304b\u3092\u793a\u3059\u8a73\u7d30\u306a\u56f3\u3002.<\/em><\/figcaption><\/figure>\n<h3>Why this matters (\u3053\u308c\u304c\u91cd\u8981\u306a\u7406\u7531)<\/h3>\n<p>\u8a2d\u8a08\u306f\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u7d19\u306e\u4e0a\u3067\u306f\u300c\u9069\u5207\u306b\u898b\u3048\u308b\u300d\u5834\u5408\u3067\u3082\u3001\u6b21\u306e\u5834\u5408\u306f\u5931\u6557\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u5c0e\u4f53\u306e\u8a31\u5bb9\u96fb\u6d41\u5bb9\u91cf\u304c\u4e0d\u5341\u5206\u3067\u3042\u308b<\/li>\n<li>\u6e29\u5ea6\u88dc\u6b63\u306b\u3088\u3063\u3066\u7d50\u679c\u304c\u5909\u308f\u308b<\/li>\n<li>\u675f\u306d\u3089\u308c\u305f\u5c0e\u4f53\u304c\u8a31\u5bb9\u96fb\u6d41\u5bb9\u91cf\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b<\/li>\n<li>\u8ca0\u8377\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u304c\u8aa4\u3063\u3066\u5206\u985e\u3055\u308c\u305f<\/li>\n<\/ul>\n<p>\u9a5a\u304f\u307b\u3069\u898b\u843d\u3068\u3055\u308c\u308b\u8a73\u7d30\u306e1\u3064\u306f <strong>\u7aef\u5b50\u6e29\u5ea6\u5b9a\u683c<\/strong>. \u3067\u3059\u3002\u306e\u4e0b\u3067 <strong>NEC 110.14(C)<\/strong>, \u3001\u7aef\u5b50\u3067\u306e\u8a31\u5bb9\u5c0e\u4f53\u8a31\u5bb9\u96fb\u6d41\u5bb9\u91cf\u306f\u3001\u6a5f\u5668\u7aef\u5b50\u306e\u6e29\u5ea6\u5b9a\u683c\u306b\u3088\u3063\u3066\u5236\u9650\u3055\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u8a00\u3044\u63db\u3048\u308c\u3070\u3001\u5c0e\u4f53\u7d76\u7e01\u304c\u4ed6\u306e\u5834\u6240\u3067\u3088\u308a\u9ad8\u3044\u8a31\u5bb9\u96fb\u6d41\u5bb9\u91cf\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u3088\u3046\u306b\u898b\u3048\u3066\u3082\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u307e\u305f\u306f\u7aef\u5b50\u3067\u306e\u6700\u7d42\u7684\u306a\u4f7f\u7528\u53ef\u80fd\u306a\u8a31\u5bb9\u96fb\u6d41\u5bb9\u91cf\u306f\u3001\u4f9d\u7136\u3068\u3057\u3066\u7aef\u5b50\u5b9a\u683c\u306b\u3088\u3063\u3066\u5236\u5fa1\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u3053\u304c\u3001\u5b9f\u969b\u306e\u30b5\u30a4\u30b8\u30f3\u30b0\u304c\u7406\u8ad6\u7684\u3067\u306f\u306a\u304f\u3001\u3088\u308a\u5b9f\u8df5\u7684\u306b\u306a\u308b\u5834\u6240\u3067\u3059\u3002.<\/p>\n<p>\u305d\u306e\u305f\u3081\u3001NEC 125%\u30eb\u30fc\u30eb\u306f\u3001\u56de\u8def\u5168\u4f53\u306e\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3092\u78ba\u8a8d\u305b\u305a\u306b\u30011\u884c\u306e\u30b7\u30e7\u30fc\u30c8\u30ab\u30c3\u30c8\u3068\u3057\u3066\u6271\u3046\u3079\u304d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n<h2>\u7aef\u5b50\u6e29\u5ea6\u5b9a\u683c\u306e\u843d\u3068\u3057\u7a74<\/h2>\n<p>\u5b9f\u969b\u306e\u4f5c\u696d\u3067\u306f\u3001\u6700\u3082\u7c21\u5358\u306a\u9593\u9055\u3044\u306e1\u3064\u306f\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u30b5\u30a4\u30ba\u3067\u6b62\u307e\u308a\u3001\u7aef\u5b50\u3092\u5fd8\u308c\u308b\u3053\u3068\u3067\u3059\u3002.<\/p>\n<p>\u96fb\u6c17\u6280\u5e2b\u304c\u73fe\u5834\u3067\u9023\u7d9a\u8ca0\u8377\u306e\u554f\u984c\u306b\u3064\u3044\u3066\u8a71\u3057\u5408\u3046\u3068\u304d\u3001\u4f1a\u8a71\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u8ca0\u8377\u8a08\u7b97\u306f1\u3064\u306e\u5c0e\u4f53\u30b5\u30a4\u30ba\u3092\u793a\u3057\u3066\u3044\u308b<\/li>\n<li>\u5468\u56f2\u6e29\u5ea6\u88dc\u6b63\u304c\u8a08\u7b97\u3092\u62bc\u3057\u4e0a\u3052\u308b<\/li>\n<li>\u675f\u306d\u8abf\u6574\u304c\u8a31\u5bb9\u96fb\u6d41\u5bb9\u91cf\u3092\u5909\u66f4\u3059\u308b<\/li>\n<li>\u305d\u3057\u3066\u3001\u7aef\u5b50\u6e29\u5ea6\u5236\u9650\u304c\u6700\u7d42\u7684\u306a\u5236\u7d04\u306b\u306a\u308b<\/li>\n<\/ul>\n<p>\u6700\u5f8c\u306e\u70b9\u304c\u3001\u9759\u304b\u306b\u91cd\u8981\u306b\u306a\u308b\u7b87\u6240\u3067\u3059\u3002 <strong>NEC 110.14(C)<\/strong> \u30d6\u30ec\u30fc\u30ab\u30fc\u307e\u305f\u306f\u6a5f\u5668\u306e\u7aef\u5b50\u304c60\u00b0C\u307e\u305f\u306f75\u00b0C\u306e\u7aef\u5b50\u5236\u9650\u306b\u3088\u3063\u3066\u52b9\u679c\u7684\u306b\u5236\u5fa1\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u4f7f\u7528\u53ef\u80fd\u306a\u5c0e\u4f53\u8a31\u5bb9\u96fb\u6d41\u5bb9\u91cf\u306f\u305d\u306e\u57fa\u6e96\u3067\u8a55\u4fa1\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5b9f\u969b\u7684\u306a\u8a2d\u8a08\u3067\u306f\u3001\u3053\u308c\u304c\u300c\u96fb\u7dda\u306f\u5341\u5206\u306b\u592a\u304f\u898b\u3048\u305f\u300d\u304c\u5e38\u306b\u8b70\u8ad6\u306e\u7d42\u308f\u308a\u3067\u306f\u306a\u3044\u7406\u7531\u306e1\u3064\u3067\u3059\u3002.<\/p>\n<h2>\u30eb\u30fc\u30eb\u304c\u6700\u3082\u983b\u7e41\u306b\u73fe\u308c\u308b\u5834\u6240<\/h2>\n<p>NEC 125%\u30eb\u30fc\u30eb\u306f\u3001\u6b21\u306e\u72b6\u6cc1\u3067\u7279\u306b\u91cd\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u30d1\u30cd\u30eb\u30b9\u30b1\u30b8\u30e5\u30fc\u30eb\u3068\u5206\u5c90\u56de\u8def\u306e\u8a2d\u8a08<\/li>\n<li>\u30d5\u30a3\u30fc\u30c0\u30fc\u306e\u30b5\u30a4\u30b8\u30f3\u30b0<\/li>\n<li>\u696d\u52d9\u7528\u7167\u660e\u30b7\u30b9\u30c6\u30e0<\/li>\n<li>HVAC\u95a2\u9023\u306e\u9023\u7d9a\u904b\u8ee2<\/li>\n<li>EV\u5145\u96fb\u56de\u8def<\/li>\n<li>\u9577\u6642\u9593\u30c7\u30e5\u30fc\u30c6\u30a3\u306e\u96fb\u6d41\u30c9\u30ed\u30fc\u3092\u5099\u3048\u305f\u7523\u696d\u6a5f\u5668<\/li>\n<\/ul>\n<p>\u8a2d\u8a08\u4f5c\u696d\u3067\u306f\u3001\u3053\u308c\u304c\u9078\u629e\u3055\u308c\u305f\u30d6\u30ec\u30fc\u30ab\u30fc\u30b5\u30a4\u30ba\u304c\u8aad\u8005\u304c\u6700\u521d\u306b\u4e88\u60f3\u3059\u308b\u3088\u308a\u3082\u5927\u304d\u304f\u306a\u308b\u6700\u3082\u4e00\u822c\u7684\u306a\u7406\u7531\u306e1\u3064\u3067\u3059\u3002.<\/p>\n<h2>\u30eb\u30fc\u30eb\u304c\u5b58\u5728\u3059\u308b\u7406\u7531<\/h2>\n<p>\u5b9f\u7528\u7684\u306a\u7406\u7531\u306f\u7c21\u5358\u3067\u3059\u3002\u6301\u7d9a\u7684\u306a\u96fb\u6d41\u306f\u6301\u7d9a\u7684\u306a\u52a0\u71b1\u3092\u751f\u307f\u51fa\u3057\u307e\u3059\u3002.<\/p>\n<p>\u9577\u6642\u9593\u96fb\u6d41\u3092\u6d41\u3059\u96fb\u6c17\u6a5f\u5668\u306f\u3001\u77ed\u3044\u9593\u6b20\u7684\u306a\u8ca0\u8377\u30d4\u30fc\u30af\u304c\u767a\u751f\u3059\u308b\u6a5f\u5668\u3068\u540c\u3058\u3088\u3046\u306b\u6271\u3046\u3079\u304d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002NEC 125%\u30eb\u30fc\u30eb\u306f\u3001\u9577\u6642\u9593\u306e\u8ca0\u8377\u6761\u4ef6\u306b\u5408\u308f\u305b\u3066\u4fdd\u8b77\u304a\u3088\u3073\u914d\u96fb\u30b7\u30b9\u30c6\u30e0\u3092\u9069\u5207\u306b\u30b5\u30a4\u30b8\u30f3\u30b0\u3059\u308b\u5fc5\u8981\u6027\u3092\u53cd\u6620\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n<p>\u305d\u308c\u306f\u300c\u7406\u7531\u306e\u306a\u3044\u4f59\u5206\u306a\u30de\u30fc\u30b8\u30f3\u300d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u308c\u306f\u3001NEC\u306b\u57fa\u3065\u304f\u8a2d\u8a08\u3067\u9023\u7d9a\u904b\u8ee2\u30c7\u30e5\u30fc\u30c6\u30a3\u304c\u3069\u306e\u3088\u3046\u306b\u6271\u308f\u308c\u308b\u304b\u306e\u4e00\u90e8\u3067\u3059\u3002.<\/p>\n<h2>100%\u5b9a\u683c\u306e\u6a5f\u5668\u306e\u4f8b\u5916<\/h2>\n<p>\u3053\u308c\u306f\u3001\u3088\u308a\u9ad8\u5ea6\u306a\u8aad\u8005\u304c\u901a\u5e38\u7cbe\u5ea6\u3092\u6c42\u3081\u308b\u7b87\u6240\u3067\u3059\u3002.<\/p>\n<p>NEC\u306e\u8a00\u8a9e\u306b\u306f\u3001\u5b9a\u683c\u306e <strong>100%\u904b\u8ee2<\/strong> \u7528\u306b\u30ea\u30b9\u30c8\u3055\u308c\u3066\u3044\u308b\u30a2\u30bb\u30f3\u30d6\u30ea\u306e\u4f8b\u5916\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u3088\u3046\u306a\u5834\u5408\u3001\u6a19\u6e96\u306e125%\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u540c\u3058\u3088\u3046\u306b\u9069\u7528\u3055\u308c\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<p>\u305d\u306e\u4f8b\u5916\u306f\u91cd\u8981\u3067\u3059\u304c\u3001\u5b89\u6613\u306b\u6271\u3046\u3079\u304d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u308c\u306f\u3001\u30a2\u30bb\u30f3\u30d6\u30ea\u304c\u7279\u306b\u30ea\u30b9\u30c8\u306b\u8a18\u8f09\u3055\u308c\u3001\u6b63\u3057\u304f\u9069\u7528\u3055\u308c\u308b\u3053\u3068\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002\u307b\u3068\u3093\u3069\u306e\u65e5\u5e38\u7684\u306a\u8a2d\u8a08\u306b\u95a2\u3059\u308b\u8b70\u8ad6\u3067\u306f\u3001\u6a19\u6e96\u306e125%\u30eb\u30fc\u30eb\u304c\u4f9d\u7136\u3068\u3057\u3066\u5b9f\u7528\u7684\u306a\u51fa\u767a\u70b9\u3068\u306a\u308a\u307e\u3059\u3002.<\/p>\n<h2>\u3088\u304f\u3042\u308b\u9593\u9055\u3044<\/h2>\n<h3>\u3059\u3079\u3066\u306e\u8ca0\u8377\u3092\u9023\u7d9a\u8ca0\u8377\u3068\u3057\u3066\u6271\u3046<\/h3>\n<p>\u3059\u3079\u3066\u306e\u8ca0\u8377\u304cNEC\u306b\u57fa\u3065\u3044\u3066\u9023\u7d9a\u8ca0\u8377\u3068\u3057\u3066\u8a8d\u3081\u3089\u308c\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4e88\u60f3\u3055\u308c\u308b\u52d5\u4f5c\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u304c\u91cd\u8981\u3067\u3059\u3002.<\/p>\n<h3>3\u6642\u9593\u6761\u4ef6\u3092\u5fd8\u308c\u308b<\/h3>\n<p>\u9023\u7d9a\u8ca0\u8377\u306e\u5b9a\u7fa9\u306f\u3001\u6700\u5927\u96fb\u6d41\u30673\u6642\u9593\u4ee5\u4e0a\u52d5\u4f5c\u3059\u308b\u3053\u3068\u304c\u4e88\u60f3\u3055\u308c\u308b\u3053\u3068\u306b\u7d50\u3073\u3064\u3044\u3066\u3044\u307e\u3059\u3002.<\/p>\n<h3>\u4e00\u90e8\u306e\u307f\u304c\u9023\u7d9a\u8ca0\u8377\u3067\u3042\u308b\u5834\u5408\u306b\u3001\u8ca0\u8377\u5168\u4f53\u306b125%\u3092\u9069\u7528\u3059\u308b<\/h3>\n<p>\u56de\u8def\u306b\u9023\u7d9a\u8ca0\u8377\u3068\u975e\u9023\u7d9a\u8ca0\u8377\u306e\u4e21\u65b9\u304c\u3042\u308b\u5834\u5408\u3001\u9023\u7d9a\u90e8\u5206\u306f\u975e\u9023\u7d9a\u90e8\u5206\u3068\u306f\u7570\u306a\u308b\u6271\u3044\u3092\u53d7\u3051\u307e\u3059\u3002.<\/p>\n<h3>\u30eb\u30fc\u30eb\u306f\u30d6\u30ec\u30fc\u30ab\u30fc\u304c\u904e\u5927\u8a55\u4fa1\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u610f\u5473\u3059\u308b\u3068\u8003\u3048\u308b<\/h3>\n<p>NEC\u306e\u7528\u8a9e\u3067\u306f\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u306f\u9023\u7d9a\u4f7f\u7528\u6761\u4ef6\u306b\u5408\u308f\u305b\u3066\u9078\u629e\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u8a2d\u8a08\u8981\u4ef6\u3067\u3042\u308a\u3001\u5b89\u6613\u306a\u904e\u5927\u8a55\u4fa1\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n<h3>\u96fb\u7dda\u3068\u8a2d\u7f6e\u6761\u4ef6\u3092\u7121\u8996\u3059\u308b<\/h3>\n<p>\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u5b9a\u683c\u3060\u3051\u3067\u306f\u3001\u30b5\u30a4\u30b8\u30f3\u30b0\u306b\u95a2\u3059\u308b\u8b70\u8ad6\u306f\u7d42\u308f\u308a\u307e\u305b\u3093\u3002.<\/p>\n<h3>\u7aef\u5b50\u6e29\u5ea6\u5236\u9650\u3092\u5fd8\u308c\u308b<\/h3>\n<p>\u8ca0\u8377\u8a08\u7b97\u304c\u6b63\u3057\u304f\u884c\u308f\u308c\u3066\u3044\u3066\u3082\u3001\u6700\u7d42\u7684\u306a\u96fb\u7dda\u9078\u5b9a\u306f\u3001NEC 110.14(C)\u306b\u57fa\u3065\u304f\u7aef\u5b50\u306e\u6e29\u5ea6\u5b9a\u683c\u306b\u3088\u3063\u3066\u5236\u9650\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<h2>\u7c21\u5358\u306a\u53c2\u7167\u8868<\/h2>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left;\" border=\"1\">\n<thead>\n<tr>\n<th style=\"padding: 8px;\">\u72b6\u6cc1<\/th>\n<th style=\"padding: 8px;\">\u5b9f\u7528\u7684\u306aNEC\u306e\u6271\u3044<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\">\u975e\u9023\u7d9a\u8ca0\u8377\u306e\u307f<\/td>\n<td style=\"padding: 8px;\">\u901a\u5e38\u3001100%\u3067\u6271\u308f\u308c\u307e\u3059<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">\u9023\u7d9a\u8ca0\u8377\u306e\u307f<\/td>\n<td style=\"padding: 8px;\">\u901a\u5e38\u3001125%\u3067\u6271\u308f\u308c\u307e\u3059<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">\u6df7\u5408\u8ca0\u8377<\/td>\n<td style=\"padding: 8px;\">\u975e\u9023\u7d9a\u8ca0\u8377 + \u9023\u7d9a\u8ca0\u8377\u306e125%<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">100%\u5b9a\u683c\u306e\u30ea\u30b9\u30c8\u3055\u308c\u305f\u30a2\u30bb\u30f3\u30d6\u30ea<\/td>\n<td style=\"padding: 8px;\">\u9069\u5207\u306b\u30ea\u30b9\u30c8\u3055\u308c\u3001\u9069\u7528\u3055\u308c\u3066\u3044\u308c\u3070\u3001\u4f8b\u5916\u6761\u4ef6\u306b\u5f93\u3046\u5834\u5408\u304c\u3042\u308a\u307e\u3059<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u30d6\u30ec\u30fc\u30ab\u30fc\u9078\u5b9a\u306b\u95a2\u3059\u308b\u5b9f\u7528\u7684\u306a\u8a2d\u8a08\u4e0a\u306e\u6ce8\u610f\u70b9<\/h2>\n<p>NEC 125%\u30eb\u30fc\u30eb\u306f\u3001\u30d6\u30ec\u30fc\u30ab\u30fc\u30d5\u30a1\u30df\u30ea\u30fc\u3092\u9078\u629e\u3057\u305f\u308a\u3001\u5206\u5c90\u56de\u8def\u3092\u7570\u306a\u308b\u30c7\u30d0\u30a4\u30b9\u30af\u30e9\u30b9\u306b\u79fb\u884c\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u6c7a\u5b9a\u3059\u308b\u969b\u306b\u3057\u3070\u3057\u3070\u51fa\u3066\u304d\u307e\u3059\u3002.<\/p>\n<p>\u88fd\u54c1\u306e\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3068\u3057\u3066\u3001VIOX\u306b\u306f\u3059\u3067\u306b\u4ee5\u4e0b\u306e\u30b5\u30dd\u30fc\u30c8\u30da\u30fc\u30b8\u304c\u3042\u308a\u307e\u3059 <a href=\"https:\/\/test.viox.com\/ja\/mcb\/\">MCB<\/a>, <a href=\"https:\/\/test.viox.com\/ja\/mccb\/\">MCCB<\/a>, \u3001\u304a\u3088\u3073\u3088\u308a\u5e83\u7bc4\u306a\u7528\u8a9e\u306e\u9055\u3044\u306b\u3064\u3044\u3066 <a href=\"https:\/\/test.viox.com\/ja\/what-is-the-difference-between-mcb-mccb-rcb-rcd-rccb-and-rcbo\/\">MCB\u3001MCCB\u3001RCB\u3001RCD\u3001RCCB\u3001\u304a\u3088\u3073RCBO<\/a>.<\/p>\n<p>\u3053\u308c\u3089\u306e\u30da\u30fc\u30b8\u306fNEC\u306e\u8a2d\u8a08\u30ec\u30d3\u30e5\u30fc\u306b\u4ee3\u308f\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001125%\u30eb\u30fc\u30eb\u306b\u3088\u3063\u3066\u8a2d\u8a08\u304c\u7570\u306a\u308b\u4fdd\u8b77\u30af\u30e9\u30b9\u306b\u5411\u304b\u3046\u5834\u5408\u306b\u3001\u30c7\u30d0\u30a4\u30b9\u306e\u5f79\u5272\u3092\u660e\u78ba\u306b\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002.<\/p>\n<h2>\u7d50\u8ad6<\/h2>\n<p>\u306b\u3064\u3044\u3066 <strong>\u9023\u7d9a\u8ca0\u8377\u306b\u95a2\u3059\u308bNEC 125%\u898f\u5247<\/strong> \u306f\u3001\u9023\u7d9a\u8ca0\u8377\u304c\u901a\u5e38\u3001\u5206\u5c90\u56de\u8def\u304a\u3088\u3073\u30d5\u30a3\u30fc\u30c0\u30fc\u4fdd\u8b77\u3092\u9078\u629e\u3059\u308b\u969b\u306b\u3001\u516c\u79f0\u96fb\u6d41\u306e\u6b63\u78ba\u306b100%\u3067\u30b5\u30a4\u30ba\u8a2d\u5b9a\u3055\u308c\u306a\u3044\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u4ee3\u308f\u308a\u306b\u3001\u7279\u5b9a\u306e100%\u5b9a\u683c\u306e\u6a5f\u5668\u4f8b\u5916\u304c\u9069\u7528\u3055\u308c\u306a\u3044\u9650\u308a\u3001\u9023\u7d9a\u90e8\u5206\u306f\u4e00\u822c\u306b125%\u3067\u6271\u308f\u308c\u307e\u3059\u3002.<\/p>\n<p>\u307b\u3068\u3093\u3069\u306e\u8aad\u8005\u306b\u3068\u3063\u3066\u3001\u5b9f\u7528\u7684\u306a\u516c\u5f0f\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<p><code>\u975e\u9023\u7d9a\u8ca0\u8377 + (\u9023\u7d9a\u8ca0\u8377 \u00d7 125%)<\/code><\/p>\n<p>\u305d\u308c\u306f\u3001NEC\u306b\u57fa\u3065\u304f\u4f5c\u696d\u306b\u304a\u3051\u308b\u591a\u304f\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u304a\u3088\u3073\u96fb\u7dda\u30b5\u30a4\u30b8\u30f3\u30b0\u306e\u6c7a\u5b9a\u306e\u80cc\u5f8c\u306b\u3042\u308b\u91cd\u8981\u306a\u30ed\u30b8\u30c3\u30af\u3067\u3059\u3002\u77ed\u3044\u516c\u5f0f\u306f\u899a\u3048\u3084\u3059\u3044\u3067\u3059\u3002\u771f\u306e\u30b9\u30ad\u30eb\u306f\u3001\u305d\u308c\u3092\u5b64\u7acb\u3057\u305f\u30eb\u30fc\u30eb\u3068\u3057\u3066\u6271\u3046\u306e\u3067\u306f\u306a\u304f\u3001\u3044\u3064Article 100\u3001210.19(A)(1)\u3001210.20(A)\u3001\u304a\u3088\u3073110.14(C)\u306b\u7d50\u3073\u4ed8\u3051\u308b\u304b\u3092\u77e5\u308b\u3053\u3068\u3067\u3059\u3002.<\/p>\n<h2>\u3088\u304f\u3042\u308b\u3054\u8cea\u554f<\/h2>\n<h3>NEC\u306b\u304a\u3051\u308b\u9023\u7d9a\u8ca0\u8377\u306e\u5b9a\u7fa9\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u9023\u7d9a\u8ca0\u8377\u3068\u306f\u3001NEC\u7b2c100\u6761\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u306b\u3001\u6700\u5927\u96fb\u6d41\u304c3\u6642\u9593\u4ee5\u4e0a\u7d99\u7d9a\u3059\u308b\u3068\u4e88\u60f3\u3055\u308c\u308b\u8ca0\u8377\u306e\u3053\u3068\u3067\u3059\u3002.<\/p>\n<h3>NEC 125%\u306e\u898f\u5b9a\u3092\u7c21\u5358\u306b\u8aac\u660e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/h3>\n<p>\u5e73\u6613\u306a\u8a00\u8449\u3067\u8a00\u3048\u3070\u3001\u56de\u8def\u306e\u30b5\u30a4\u30ba\u3092\u6c7a\u5b9a\u3059\u308b\u969b\u3001\u8ca0\u8377\u306e\u9023\u7d9a\u90e8\u5206\u306f\u901a\u5e38125%\u3067\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u7279\u5b9a\u306e100%\u5b9a\u683c\u306e\u4f8b\u5916\u304c\u9069\u7528\u3055\u308c\u308b\u5834\u5408\u3092\u9664\u304d\u307e\u3059\u3002.<\/p>\n<h3>125%\u306e\u898f\u5247\u306f\u3001\u906e\u65ad\u5668\u306b\u9069\u7528\u3055\u308c\u307e\u3059\u304b\uff1f<\/h3>\n<p>\u306f\u3044\u3002\u5206\u5c90\u56de\u8def\u306b\u3064\u3044\u3066\u306f\u3001\u305d\u306e\u8b70\u8ad6\u306fNEC 210.20(A)\u3068\u5bc6\u63a5\u306b\u95a2\u9023\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n<h3>125%\u306e\u898f\u5b9a\u306f\u3001\u5c0e\u4f53\u306b\u3082\u9069\u7528\u3055\u308c\u307e\u3059\u304b\uff1f<\/h3>\n<p>\u3053\u308c\u306f\u56de\u8def\u5168\u4f53\u306e\u8a2d\u8a08\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u305f\u3081\u3001NEC 210.19(A)(1)\u304a\u3088\u3073\u95a2\u9023\u3059\u308b\u30d5\u30a3\u30fc\u30c0\u30fc\u898f\u5b9a\u3001\u306a\u3089\u3073\u306bNEC 110.14(C)\u306b\u57fa\u3065\u304f\u7aef\u5b50\u6e29\u5ea6\u5236\u9650\u3068\u3068\u3082\u306b\u3001\u5c0e\u4f53\u30b5\u30a4\u30ba\u306e\u9078\u5b9a\u3082\u898b\u76f4\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<h3>\u306a\u305c48A\u306eEV\u5145\u96fb\u5668\u306f\u3001\u3057\u3070\u3057\u307060A\u306e\u30d6\u30ec\u30fc\u30ab\u30fc\u306b\u63a5\u7d9a\u3055\u308c\u308b\u306e\u3067\u3059\u304b\uff1f<\/h3>\n<p>NEC\u306b\u57fa\u3065\u304f\u8a2d\u8a08\u306b\u304a\u3044\u3066\u3001EV\u5145\u96fb\u306f\u901a\u5e38\u3001\u9023\u7d9a\u8ca0\u8377\u3068\u3057\u3066\u6271\u308f\u308c\u308b\u305f\u3081\u300148A \u00d7 125% = 60A\u3068\u306a\u308a\u307e\u3059\u3002.<\/p>\n<h3>\u3059\u3079\u3066\u306e\u8ca0\u8377\u306b125%\u3092\u4e57\u3058\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u304b\uff1f<\/h3>\n<p>\u3044\u3044\u3048\u3002125%\u306e\u4fc2\u6570\u306f\u3001\u9023\u7d9a\u8ca0\u8377\u306e\u90e8\u5206\u306b\u7d50\u3073\u4ed8\u3051\u3089\u308c\u3066\u304a\u308a\u3001\u3059\u3079\u3066\u306e\u56de\u8def\u306e\u3059\u3079\u3066\u306e\u8ca0\u8377\u306b\u81ea\u52d5\u7684\u306b\u9069\u7528\u3055\u308c\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n<p>&nbsp;<\/p>\n<\/div>\n<div class=\"simg-pop-btn\" style=\"top: 192px; left: 14px; display: none;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>The NEC 125% rule for continuous loads means that when a branch circuit or feeder supplies a continuous load, the overcurrent device and related circuit design have to account for that load at 125% of the continuous portion, unless a specific 100%-rated assembly exception applies. In practical terms, if a load is expected to run at its maximum current for 3 hours or more, the circuit usually is not sized at exactly 100% of that current. The continuous portion is carried into the design with the 125% adjustment in mind. This comes up constantly in breaker sizing, conductor sizing, EV charging, lighting, heating, and other long-duration loads because it changes [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":22872,"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-22869","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\/22869","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=22869"}],"version-history":[{"count":2,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/posts\/22869\/revisions"}],"predecessor-version":[{"id":22871,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/posts\/22869\/revisions\/22871"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/media\/22872"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/media?parent=22869"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/categories?post=22869"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/ja\/wp-json\/wp\/v2\/tags?post=22869"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}