{"id":2633,"date":"2026-01-07T09:00:00","date_gmt":"2026-01-07T09:00:00","guid":{"rendered":"https:\/\/sinobreaker.com\/?p=2633"},"modified":"2025-10-30T08:48:02","modified_gmt":"2025-10-30T08:48:02","slug":"pv-combiner-box-wiring-diagram-grounding-bonding","status":"publish","type":"post","link":"https:\/\/sinobreaker.com\/ja\/pv-combiner-box-wiring-diagram-grounding-bonding\/","title":{"rendered":"PV\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306e\u914d\u7dda\u56f3\u30a2\u30fc\u30b9\u3068\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0 2025"},"content":{"rendered":"<h2 class=\"wp-block-heading\">\u306f\u3058\u3081\u306b<\/h2>\n\n\n\n<p>PV\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306e\u914d\u7dda\u56f3\u306f\u3001\u5b89\u5168\u3067\u6cd5\u4ee4\u306b\u6e96\u62e0\u3057\u305f\u592a\u967d\u5149\u767a\u96fb\u8a2d\u5099\u306b\u5fc5\u8981\u306a\u30b9\u30c8\u30ea\u30f3\u30b0\u63a5\u7d9a\u3001\u63a5\u5730\u69cb\u9020\u3001\u304a\u3088\u3073\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u5c0e\u4f53\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u8996\u899a\u7684\u306b\u793a\u3059\u91cd\u8981\u306a\u6587\u66f8\u3067\u3059\u3002\u9069\u5207\u306a\u914d\u7dda\u30c8\u30dd\u30ed\u30b8\u30fc\u3001\u5c0e\u4f53\u306e\u30b5\u30a4\u30ba\u6c7a\u5b9a\u65b9\u6cd5\u3001\u63a5\u5730\u30b7\u30b9\u30c6\u30e0\u306e\u7d71\u5408\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u8a2d\u7f6e\u696d\u8005\u306f\u30b7\u30b9\u30c6\u30e0\u306e\u30e9\u30a4\u30d5\u30b5\u30a4\u30af\u30eb\u3092\u901a\u3058\u3066\u4fdd\u8b77\u306e\u5b8c\u5168\u6027\u3092\u7dad\u6301\u3059\u308b\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u63a5\u7d9a\u3092\u5b9f\u884c\u3067\u304d\u307e\u3059\u3002.<\/p>\n\n\n\n<p>\u30e2\u30c0\u30f3 <a href=\"https:\/\/sinobreaker.com\/ja\/%e3%82%b3%e3%83%b3%e3%83%90%e3%82%a4%e3%83%8a%e3%83%bc%e3%83%9c%e3%83%83%e3%82%af%e3%82%b9\/\">PV\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9<\/a> \u914d\u7dda\u306b\u306f\u3001\u6b63\u8ca0\u306e\u30b9\u30c8\u30ea\u30f3\u30b0\u5c0e\u4f53\u306e\u914d\u7dda\u3001\u6a5f\u5668\u63a5\u5730\u5c0e\u4f53\uff08EGC\uff09\u306e\u63a5\u7d9a\u3001\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u30b8\u30e3\u30f3\u30d1\u30fc\u306e\u8a2d\u7f6e\u3001\u904e\u96fb\u6d41\u4fdd\u8b77\u30c7\u30d0\u30a4\u30b9\u306e\u7d71\u5408\u3001\u9069\u5207\u306a\u7d42\u7aef\u6280\u8853\u306a\u3069\u3001\u8907\u6570\u306e\u91cd\u8981\u306a\u8981\u7d20\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u5404\u914d\u7dda\u8981\u7d20\u306f\u3001\u4ee5\u4e0b\u306b\u6e96\u62e0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 <a href=\"https:\/\/www.nfpa.org\/codes-and-standards\/all-codes-and-standards\/list-of-codes-and-standards\/detail?code=70\" target=\"_blank\" rel=\"noopener\">NEC\u7b2c690\u6761<\/a> \u305d\u306e\u4e00\u65b9\u3067\u3001\u96fb\u7dda\u7ba1\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u5236\u7d04\u3001\u74b0\u5883\u66b4\u9732\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306e\u3057\u3084\u3059\u3055\u306a\u3069\u3001\u73fe\u5834\u7279\u6709\u306e\u6761\u4ef6\u306b\u3082\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u3002.<\/p>\n\n\n\n<p>\u3053\u306e\u5305\u62ec\u7684\u306a\u30c6\u30af\u30cb\u30ab\u30eb\u30ac\u30a4\u30c9\u306f\u3001\u4e00\u822c\u7684\u306a\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u69cb\u6210\u306e\u305f\u3081\u306e\u6a19\u6e96\u5316\u3055\u308c\u305f\u914d\u7dda\u56f3\u3092\u63d0\u793a\u3057\u3001NEC\u8981\u4ef6\u306b\u5f93\u3063\u3066\u63a5\u5730\u3068\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u306e\u8a2d\u8a08\u539f\u7406\u3092\u8aac\u660e\u3057\u3001\u9069\u5207\u306a\u5c0e\u4f53\u30b5\u30a4\u30ba\u306e\u8a08\u7b97\u3092\u5b9f\u8a3c\u3057\u3001\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u6642\u306e\u554f\u984c\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u30ac\u30a4\u30c0\u30f3\u30b9\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u4f53\u7cfb\u7684\u306a\u914d\u7dda\u65b9\u6cd5\u3001\u691c\u8a3c\u624b\u9806\u3001\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3092\u5b66\u3076\u3053\u3068\u3067\u3001\u691c\u67fb\u306b\u5408\u683c\u3057\u3001\u9577\u671f\u7684\u306a\u4fe1\u983c\u6027\u3092\u63d0\u4f9b\u3059\u308b\u6700\u521d\u306e\u6b63\u3057\u3044\u8a2d\u7f6e\u3092\u78ba\u5b9f\u306b\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udca1 <strong>\u914d\u7dda\u539f\u7406<\/strong>:\u592a\u967d\u5149\u767a\u96fb\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306e\u914d\u7dda\u56f3\u3092\u6b63\u3057\u304f\u5b9f\u88c5\u3059\u308b\u306b\u306f\u3001\u63a5\u5730\u306f\u6545\u969c\u96fb\u6d41\u7d4c\u8def\u3092\u63d0\u4f9b\u3057\u3001\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u306f\u7b49\u96fb\u4f4d\u5e73\u9762\u3092\u78ba\u7acb\u3059\u308b\u3053\u3068\u3092\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">\u6a19\u6e96\u6587\u5b57\u5217\u63a5\u7d9a\u30c8\u30dd\u30ed\u30b8\u30fc<\/h2>\n\n\n\n<p>\u30b9\u30c8\u30ea\u30f3\u30b0\u63a5\u7d9a\u30c8\u30dd\u30ed\u30b8\u30fc\u306f\u3001\u500b\u3005\u306ePV\u30b9\u30c8\u30ea\u30f3\u30b0\u304c\u904e\u96fb\u6d41\u4fdd\u8b77\u88c5\u7f6e\u3092\u4ecb\u3057\u3066\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306e\u30d0\u30b9\u30d0\u30fc\u306b\u63a5\u7d9a\u3059\u308b\u65b9\u6cd5\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u6a19\u6e96\u5316\u3055\u308c\u305f\u30c8\u30dd\u30ed\u30b8\u30fc\u306f\u3001\u4e00\u8cab\u3057\u305f\u8a2d\u7f6e\u54c1\u8cea\u3092\u4fdd\u8a3c\u3057\u3001\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u5bb9\u6613\u306b\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u76f4\u5217\u30b9\u30c8\u30ea\u30f3\u30b0\u304b\u3089\u30d2\u30e5\u30fc\u30ba\u4ed8\u304d\u5165\u529b\u3078\u306e\u69cb\u6210<\/h3>\n\n\n\n<p>\u6700\u3082\u4e00\u822c\u7684\u306a\u30c8\u30dd\u30ed\u30b8\u30fc\u306f\u3001\u5404\u76f4\u5217\u30b9\u30c8\u30ea\u30f3\u30b0\uff08\u901a\u5e388\uff5e24\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u76f4\u5217\u306b\u63a5\u7d9a\uff09\u3092\u3001\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306e\u5c02\u7528\u5165\u529b\u4f4d\u7f6e\u306b\u63a5\u7d9a\u3059\u308b\u3082\u306e\u3067\u3042\u308b\u3002 <a href=\"https:\/\/sinobreaker.com\/ja\/%e7%9b%b4%e6%b5%81%e3%83%92%e3%83%a5%e3%83%bc%e3%82%ba\/\">DC\u30d2\u30e5\u30fc\u30ba<\/a> \u307e\u305f\u306f\u5c0f\u578b\u30b5\u30fc\u30ad\u30c3\u30c8\u30d6\u30ec\u30fc\u30ab\u30fc\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u5404\u30b9\u30c8\u30ea\u30f3\u30b0\u306e\u30d7\u30e9\u30b9\u5c0e\u7dda\u306f\u904e\u96fb\u6d41\u88c5\u7f6e\u306e\u30e9\u30a4\u30f3\u5074\u306b\u63a5\u7d9a\u3057\u3001\u8ca0\u8377\u5074\u306f\u30d7\u30e9\u30b9\u6bcd\u7dda\u306b\u63a5\u7d9a\u3057\u307e\u3059\u3002\u8ca0\u5074\u306e\u5c0e\u7dda\u306f\u3001\u30d2\u30e5\u30fc\u30ba\u306a\u3057\u3067\u8ca0\u5074\u306e\u30d0\u30b9\u30d0\u30fc\u306b\u76f4\u63a5\u63a5\u7d9a\u3057\u307e\u3059\u3002 <a href=\"https:\/\/www.nfpa.org\/codes-and-standards\/all-codes-and-standards\/list-of-codes-and-standards\/detail?code=70\" target=\"_blank\" rel=\"noopener\">NEC 690<\/a>.9(B).<\/p>\n\n\n\n<p><strong>\u63a5\u7d9a\u30b7\u30fc\u30b1\u30f3\u30b9<\/strong>:\u30b9\u30c8\u30ea\u30f3\u30b0\u6b63\u5c0e\u4f53\u2192\u904e\u96fb\u6d41\u88c5\u7f6e\u30e9\u30a4\u30f3\u7aef\u5b50\u2192\u88c5\u7f6e\u8ca0\u8377\u7aef\u5b50\u2192\u6b63\u6bcd\u7dda\u3002\u30b9\u30c8\u30ea\u30f3\u30b0\u8ca0\u5c0e\u7dda \u2192 \u8ca0\u6bcd\u7dda\u7aef\u5b50\u3002\u3053\u306e\u30c8\u30dd\u30ed\u30b8\u30fc\u306b\u3088\u308a\u3001\u5404\u30b9\u30c8\u30ea\u30f3\u30b0\u306f\u500b\u5225\u306e\u4fdd\u8b77\u3092\u901a\u3058\u3066\u7d76\u7e01\u3055\u308c\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u307e\u305f\u306f\u6545\u969c\u5207\u308a\u5206\u3051\u306e\u305f\u3081\u306e\u9078\u629e\u7684\u306a\u5207\u308a\u96e2\u3057\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u5c0e\u4f53\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0<\/strong>:\u96fb\u78c1\u30ab\u30c3\u30d7\u30ea\u30f3\u30b0\u3068\u96fb\u5727\u964d\u4e0b\u306e\u4e0d\u5747\u8861\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u305f\u3081\u3001\u30b9\u30c8\u30ea\u30f3\u30b0\u306e\u30d7\u30e9\u30b9\u3068\u30de\u30a4\u30ca\u30b9\u306e\u5c0e\u4f53\u3092\u540c\u3058\u96fb\u7dda\u7ba1\u307e\u305f\u306f\u30b1\u30fc\u30d6\u30eb\u30c8\u30ec\u30a4\u306b\u8a2d\u7f6e\u3057\u3066\u304f\u3060\u3055\u3044\u30023\u30e1\u30fc\u30c8\u30eb\u3054\u3068\u306b\u8272\u5206\u3051\u3055\u308c\u305f\u5c0e\u4f53\uff08\u8d64\/\u767d\u306e\u30d7\u30e9\u30b9\u3001\u9ed2\u306e\u30de\u30a4\u30ca\u30b9\uff09\u307e\u305f\u306f\u30b1\u30fc\u30d6\u30eb\u30fb\u30de\u30fc\u30ab\u30fc\u3092\u4f7f\u7528\u3057\u3066\u3001\u8a2d\u7f6e\u5168\u4f53\u3067\u4e00\u8cab\u3057\u305f\u6975\u6027\u3092\u7dad\u6301\u3059\u308b\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30d1\u30e9\u30ec\u30eb\u30fb\u30b9\u30c8\u30ea\u30f3\u30b0\u76f4\u63a5\u63a5\u7d9a<\/h3>\n\n\n\n<p>\u30b3\u30f3\u30d0\u30a4\u30ca\u8a2d\u8a08\u306e\u4e2d\u306b\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u5408\u8a08\u6545\u969c\u96fb\u6d41\u304c\u5b89\u5168\u30ec\u30d9\u30eb\u4ee5\u4e0b\u306e\u5834\u5408\u3001\u500b\u5225\u306e\u904e\u96fb\u6d41\u4fdd\u8b77\u306a\u3057\u3067\u30b9\u30c8\u30ea\u30f3\u30b0\u306e\u4e26\u5217\u63a5\u7d9a\u306b\u5bfe\u5fdc\u3059\u308b\u3082\u306e\u304c\u3042\u308b\u3002NEC 690.9(C)\u306f\u3001\u5229\u7528\u53ef\u80fd\u306a\u6700\u5927\u6545\u969c\u96fb\u6d41\u304c\u30b9\u30c8\u30ea\u30f3\u30b0\u5c0e\u4f53\u306e\u8010\u91cf\u304a\u3088\u3073\u4e0b\u6d41\u6a5f\u5668\u306e\u5b9a\u683c\u3092\u8d85\u3048\u306a\u3044\u5834\u5408\u3001\u4fdd\u8b77\u3055\u308c\u3066\u3044\u306a\u3044\u4e26\u5217\u63a5\u7d9a\u3092\u8a31\u53ef\u3057\u3066\u3044\u308b\u3002.<\/p>\n\n\n\n<p><strong>\u30a2\u30f3\u30d1\u30b7\u30c6\u30a3\u691c\u8a3c<\/strong>:\u4e26\u5217\u30b9\u30c8\u30ea\u30f3\u30b0\u306e\u30d5\u30a9\u30eb\u30c8\u96fb\u6d41 I_sc \u00d7 N_parallel \u00d7 1.56 \u304c\u3001\u6700\u5c0f\u5c0e\u4f53\u5bb9\u91cf\u304a\u3088\u3073\u30b3\u30f3\u30d0\u30a4\u30ca \u30d0\u30b9\u30d0\u30fc\u5b9a\u683c\u3092\u4e0b\u56de\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u300212A\u306e\u30b9\u30c8\u30ea\u30f3\u30b0I_sc\u30684\u3064\u306e\u4e26\u5217\u975e\u4fdd\u8b77\u30b9\u30c8\u30ea\u30f3\u30b0\u3092\u6301\u3064\u30b7\u30b9\u30c6\u30e0\uff1a12A\u00d74\u00d71.56=74.9A\u3001\u9ad8\u6e29\u6642\u306b\u6700\u4f4e75A\u306e\u5c0e\u4f53\u304a\u3088\u3073\u30d0\u30b9\u30d0\u30fc\u5b9a\u683c\u304c\u5fc5\u8981\u3002.<\/p>\n\n\n\n<p><strong>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u5236\u9650<\/strong>:\u4fdd\u8b77\u3055\u308c\u3066\u3044\u306a\u3044\u4e26\u5217\u63a5\u7d9a\u306f\u3001\u5c0e\u4f53\u8010\u91cf\u304c\u4e26\u5217\u6545\u969c\u96fb\u6d41\u3092\u5927\u5e45\u306b\u8d85\u3048\u308b\u3088\u3046\u306a\u3001\u30b3\u30f3\u30d0\u30a4\u30ca\u304b\u3089\u30a4\u30f3\u30d0\u30fc\u30bf\u307e\u3067\u306e\u30b1\u30fc\u30d6\u30eb\u9577\u304c\u77ed\u3044(&lt;30m)\u5c0f\u898f\u6a21\u4f4f\u5b85\u7528\u30b7\u30b9\u30c6\u30e0(\u22644\u30b9\u30c8\u30ea\u30f3\u30b0)\u306b\u9069\u3057\u3066\u3044\u308b\u3002\u305d\u308c\u4ee5\u4e0a\u306e\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001NEC690.9(A)\u306b\u3088\u308b\u500b\u5225\u306e\u30b9\u30c8\u30ea\u30f3\u30b0\u4fdd\u8b77\u304c\u5fc5\u8981\u3067\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u51fa\u529b\u63a5\u7d9a<\/h3>\n\n\n\n<p>\u3059\u3079\u3066\u306e\u4e26\u5217\u30b9\u30c8\u30ea\u30f3\u30b0\u304b\u3089\u306e\u7d50\u5408\u3055\u308c\u305fDC\u51fa\u529b\u306f\u3001\u4e00\u822c\u7684\u306b\u7b50\u4f53\u5e95\u9762\u307e\u305f\u306f\u30b5\u30a4\u30c9\u30d1\u30cd\u30eb\u306b\u3042\u308b\u30e1\u30a4\u30f3\u6b63\u8ca0\u7aef\u5b50\u3092\u901a\u3057\u3066\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u304b\u3089\u51fa\u308b\u3002\u51fa\u529b\u5c0e\u4f53\u306f\u3001\u3059\u3079\u3066\u306e\u30b9\u30c8\u30ea\u30f3\u30b0\u96fb\u6d41\u306e\u5408\u8a08\u3092\u6d41\u3055\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\uff1a\u3053\u3053\u3067\u3001I_string_max = I_sc \u00d7 1.56\uff08NEC690.8(A)(1)\u306b\u3088\u308b\uff09\u3002.<\/p>\n\n\n\n<p><strong>\u7aef\u5b50\u30e9\u30b0\u306e\u30b5\u30a4\u30b8\u30f3\u30b0<\/strong>:\u30e1\u30a4\u30f3\u51fa\u529b\u7aef\u5b50\u306f\u3001\u7dcf\u96fb\u6d41\u306b\u5fdc\u3058\u30666 AWG\u304b\u30891\/0 AWG\u307e\u3067\u306e\u5c0e\u4f53\u30b5\u30a4\u30ba\u306b\u5bfe\u5fdc\u3002\u5927\u898f\u6a21\u306a\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30b9\u30b1\u30fc\u30eb\u30b3\u30f3\u30d0\u30a4\u30ca\u3067\u306f\u30012\/0\u307e\u305f\u306f4\/0 AWG\u306e\u51fa\u529b\u5c0e\u4f53\u304c\u5fc5\u8981\u306b\u306a\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u9069\u5207\u306a\u5727\u7e2e\u63a5\u7d9a\u3092\u78ba\u5b9f\u306b\u3059\u308b\u305f\u3081\u306b\u3001\u7aef\u5b50\u30e9\u30b0\u306e\u5c0e\u4f53\u7bc4\u56f2\u304c\u9078\u629e\u3055\u308c\u305f\u30ef\u30a4\u30e4\u30b5\u30a4\u30ba\u3068\u4e00\u81f4\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<p><strong>\u30b9\u30c8\u30ec\u30a4\u30f3\u30ea\u30ea\u30fc\u30d5\u306e\u8981\u4ef6<\/strong>:\u3059\u3079\u3066\u306e\u51fa\u529b\u5c0e\u7dda\u306b\u30b9\u30c8\u30ec\u30a4\u30f3\u30ea\u30ea\u30fc\u30d5\u91d1\u5177\u3092\u53d6\u308a\u4ed8\u3051\u3001\u7aef\u5b50\u63a5\u7d9a\u90e8\u3078\u306e\u6a5f\u68b0\u7684\u30b9\u30c8\u30ec\u30b9\u306e\u4f1d\u9054\u3092\u9632\u304e\u307e\u3059\u3002\u30b1\u30fc\u30d6\u30eb\u30b0\u30e9\u30f3\u30c9\u307e\u305f\u306f\u30b3\u30fc\u30c9\u30b0\u30ea\u30c3\u30d7\u306f\u3001\u5c0e\u7dda\u3092\u56fa\u5b9a\u3057\u306a\u304c\u3089\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306eNEMA\/IP\u5b9a\u683c\u3092\u7dad\u6301\u3057\u307e\u3059\u3002\u4e0d\u9069\u5207\u306b\u652f\u6301\u3055\u308c\u305f\u30b1\u30fc\u30d6\u30eb\u306f\u3001\u71b1\u30b5\u30a4\u30af\u30eb\u3084\u632f\u52d5\u306b\u3088\u308b\u3086\u308b\u307f\u3092\u751f\u3058\u307e\u3059\u3002.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83c\udfaf <strong>\u30d7\u30ed\u304b\u3089\u306e\u30a2\u30c9\u30d0\u30a4\u30b9<\/strong>:\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u306e\u84cb\u306e\u5185\u5074\u306b\u3001\u5404\u30b9\u30c8\u30ea\u30f3\u30b0\u306e\u5165\u529b\u4f4d\u7f6e\u3068\u5bfe\u5fdc\u3059\u308b\u30a2\u30ec\u30a4\u306e\u4f4d\u7f6e\uff08\u4f8b\u3048\u3070\u300cString 1: Roof Section A, Rows 1-3\u300d\uff09\u306e\u30e9\u30d9\u30eb\u3092\u8cbc\u308a\u307e\u3059\u3002.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">\u63a5\u5730\u30b7\u30b9\u30c6\u30e0\u30fb\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3<\/h2>\n\n\n\n<p>PV\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306e\u63a5\u5730\u69cb\u9020\u306f\u3001\u6a5f\u5668\u63a5\u5730\u5c0e\u4f53\u7d4c\u8def\u3068\u88dc\u52a9\u63a5\u5730\u96fb\u6975\u63a5\u7d9a\u3092\u78ba\u7acb\u3059\u308bNEC\u7b2c690\u6761\u30b5\u30d6\u30d1\u30fc\u30c8E\u306e\u8981\u4ef6\u3092\u5b9f\u88c5\u3057\u3066\u3044\u307e\u3059\u3002\u9069\u5207\u306a\u63a5\u5730\u8a2d\u8a08\u306b\u3088\u308a\u3001\u5730\u7d61\u691c\u51fa\u6a5f\u80fd\u3092\u7dad\u6301\u3057\u306a\u304c\u3089\u3001\u5730\u7d61\u96fb\u6d41\u304c\u5b89\u5168\u306b\u96fb\u6e90\u306b\u623b\u308b\u3088\u3046\u306b\u3059\u308b\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6a5f\u5668\u63a5\u5730\u5c0e\u4f53\uff08EGC\uff09\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0<\/h3>\n\n\n\n<p>\u6a5f\u5668\u63a5\u5730\u5c0e\u4f53\u306f\u3001\u30b3\u30f3\u30d0\u30a4\u30ca\u30dc\u30c3\u30af\u30b9\u306e\u91d1\u5c5e\u7b50\u4f53\u304b\u3089\u30a4\u30f3\u30d0\u30fc\u30bf\u307e\u305f\u306f\u30b5\u30fc\u30d3\u30b9\u30a8\u30f3\u30c8\u30e9\u30f3\u30b9\u306e\u30b7\u30b9\u30c6\u30e0\u63a5\u5730\u70b9\u307e\u3067\u306e\u4e00\u6b21\u6545\u969c\u96fb\u6d41\u7d4c\u8def\u3092\u63d0\u4f9b\u3059\u308b\u3002NEC 690.43(A)\u306f\u3001EGC\u3092\u56de\u8def\u5c0e\u4f53\u3068\u4e00\u7dd2\u306b\u8d70\u3089\u305b\u3001\u3059\u3079\u3066\u306e\u9732\u51fa\u3057\u305f\u975e\u901a\u96fb\u91d1\u5c5e\u90e8\u5206\u306b\u63a5\u7d9a\u3059\u308b\u3053\u3068\u3092\u8981\u6c42\u3057\u3066\u3044\u308b\u3002.<\/p>\n\n\n\n<p><strong>EGC\u5c0e\u4f53\u306e\u30b5\u30a4\u30b8\u30f3\u30b0<\/strong>:\u56de\u8def\u3092\u4fdd\u8b77\u3059\u308b\u904e\u96fb\u6d41\u30c7\u30d0\u30a4\u30b9\u306e\u5b9a\u683c\u306b\u57fa\u3065\u304d\u3001NEC \u8868 250.122 \u306b\u5f93\u3063\u3066\u6a5f\u5668\u63a5\u5730\u5c0e\u4f53\u306e\u30b5\u30a4\u30ba\u3092\u6c7a\u5b9a\u3059\u308b\u300230A \u30b9\u30c8\u30ea\u30f3\u30b0\u30d2\u30e5\u30fc\u30ba\u4ed8\u304d\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306e\u5834\u5408\u3001\u6700\u5c0f EGC \u30b5\u30a4\u30ba = 10 AWG \u9285\uff08\u307e\u305f\u306f 8 AWG \u30a2\u30eb\u30df\u30cb\u30a6\u30e0\uff09\u300260A \u30e1\u30a4\u30f3\u30b3\u30f3\u30d0\u30a4\u30ca\u51fa\u529b\u4fdd\u8b77\u306e\u5834\u5408\u3001\u6700\u5c0f EGC = 10AWG \u9285\u3002\u3053\u308c\u3089\u306f\u6700\u5c0f\u5024\u3067\u3042\u308a\u3001\u9577\u3044\u914d\u7dda\u307e\u305f\u306f\u56de\u8def\u5c0e\u4f53\u30b2\u30fc\u30b8\u306b\u9069\u5408\u3059\u308b\u3088\u3046\u306b\u30b5\u30a4\u30ba\u3092\u5927\u304d\u304f\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<p><strong>\u63a5\u7d9a\u30dd\u30a4\u30f3\u30c8<\/strong>:EGC\u306f\u4ee5\u4e0b\u306e\u3082\u306e\u306b\u63a5\u7d9a\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\uff1a(1)\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306e\u7b50\u4f53\u63a5\u5730\u30e9\u30b0\u3001(2)\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u30d0\u30b9\u30d0\u30fc(\u3042\u308b\u5834\u5408)\u3001(3)\u30a2\u30ec\u30a4\u30d5\u30ec\u30fc\u30e0\u63a5\u5730\u30b7\u30b9\u30c6\u30e0\u3001(4)\u30a4\u30f3\u30d0\u30fc\u30bf\u307e\u305f\u306f\u30e1\u30a4\u30f3\u30b5\u30fc\u30d3\u30b9\u306e\u30b7\u30b9\u30c6\u30e0\u63a5\u5730\u30dd\u30a4\u30f3\u30c8\u3002\u3059\u3079\u3066\u306eEGC\u63a5\u7d9a\u306b\u306f\u3001\u30ea\u30b9\u30c8\u3055\u308c\u305f\u5727\u7e2e\u30b3\u30cd\u30af\u30bf\u307e\u305f\u306f\u767a\u71b1\u6eb6\u63a5\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u63a5\u5730\u96fb\u6975\u5c0e\u4f53\uff08GEC\uff09\u306e\u7d71\u5408<\/h3>\n\n\n\n<p>\u5927\u578bPV\u30b7\u30b9\u30c6\u30e0\u306b\u306f\u3001NEC690.47(B)\u306b\u5f93\u3044\u3001\u30a2\u30ec\u30a4\u30d5\u30ec\u30fc\u30e0\u3068\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u3092\u5927\u5730\u30a2\u30fc\u30b9\u306b\u63a5\u7d9a\u3059\u308b\u88dc\u52a9\u63a5\u5730\u96fb\u6975\u30b7\u30b9 \u30c6\u30e0\u304c\u5fc5\u8981\u3067\u3042\u308b\u3002\u63a5\u5730\u96fb\u6975\u5c0e\u4f53\u306f\u3001\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u304b\u3089\u63a5\u5730\u68d2\u307e\u305f\u306fNEC 250.50\u306e\u8981\u4ef6\u3092\u6e80\u305f\u3059\u4ed6\u306e\u96fb\u6975\u306b\u63a5\u7d9a\u3059\u308b\u3002.<\/p>\n\n\n\n<p><strong>GEC\u30b5\u30a4\u30b8\u30f3\u30b0\u65b9\u6cd5\u8ad6<\/strong>:NEC 690.47(B)(1)\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u306b\u4f9b\u7d66\u3059\u308b\u6700\u5927\u306e\u5c0e\u4f53\u306b\u57fa\u3065\u304f\u63a5\u5730\u96fb\u6975\u5c0e\u4f53\u306e\u30b5\u30a4\u30b8\u30f3\u30b0\u306b\u3064\u3044\u3066\u3001\u8868 250.166\u3092\u53c2\u7167\u3057\u3066\u3044\u308b\u3002\u51fa\u529b\u5c0e\u4f53\u304c 1\/0 AWG \u306e\u30b7\u30b9\u30c6\u30e0\u306e\u5834\u5408\u3001\u6700\u5c0f GEC = 6 AWG \u9285\u3002\u6700\u5927\u5c0e\u4f53\u304c1100kcmil\u9285\u3092\u8d85\u3048\u308b\u5834\u5408\u3001\u8868\u306b\u5f93\u3044GEC = 3\/0 AWG\u9285\u304c\u6700\u5927\u3068\u306a\u308b\u3002.<\/p>\n\n\n\n<p><strong>\u96fb\u6975\u63a5\u7d9a<\/strong>:\u8907\u6570\u306e\u30ed\u30c3\u30c9\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u306f\u3001\u5c11\u306a\u304f\u3068\u3082\u30ed\u30c3\u30c9\u306e\u9577\u3055\u306e 2 \u500d\u306e\u9593\u9694\u3092\u7a7a\u3051\u3066\u3001\u6700\u4f4e 8 \u30d5\u30a3\u30fc\u30c8 (2.4m) \u5730\u4e2d\u306b\u6253\u3061\u8fbc\u3093\u3060\u63a5\u5730\u68d2\u306b GEC \u3092\u63a5\u7d9a\u3057\u3066\u304f\u3060\u3055\u3044\u3002NEC250.68(A)\u306b\u5f93\u3063\u3066\u3001\u8a66\u9a13\u304a\u3088\u3073\u70b9\u691c\u306e\u305f\u3081\u306b\u63a5\u7d9a\u304c\u53ef\u80fd\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6f0f\u96fb\u691c\u51fa\u306e\u4e92\u63db\u6027<\/h3>\n\n\n\n<p>\u6700\u65b0\u306e\u30a4\u30f3\u30d0\u30fc\u30bf\u306f\u3001DC\u5c0e\u4f53\u3068\u63a5\u5730\u9593\u306e\u7d76\u7e01\u62b5\u6297\u3092\u76e3\u8996\u3059\u308b\u5730\u7d61\u691c\u51fa\u3092\u63a1\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306e\u63a5\u5730\u306f\u3001\u6b63\u5f53\u306a\u6545\u969c\u3092\u30de\u30b9\u30af\u3059\u308b\u610f\u56f3\u3057\u306a\u3044\u63a5\u5730\u7d4c\u8def\u3092\u4f5c\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u3053\u306e\u691c\u51fa\u3092\u59a8\u5bb3\u3057\u3066\u306f\u306a\u3089\u306a\u3044\u3002.<\/p>\n\n\n\n<p><strong>\u7d76\u7e01\u62b5\u6297\u306e\u7dad\u6301<\/strong>:\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u5185\u306e\u3059\u3079\u3066\u306e\u914d\u7dda\u306f\u3001\u901a\u5e38\u306e\u52d5\u4f5c\u306b\u304a\u3044\u3066\u30a2\u30fc\u30b9\u306b\u5bfe\u3059\u308b\u7d76\u7e01\u62b5\u6297\u3092100k\u03a9\u4ee5\u4e0a\u306b\u7dad\u6301\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002\u3053\u306e\u305f\u3081\u3001\u5c0e\u4f53\u3092\u9069\u5207\u306b\u7d76\u7e01\u3057\u3001\u92ed\u5229\u306a\u90e8\u5206\u3092\u907f\u3051\u3066\u614e\u91cd\u306b\u914d\u7dda\u3057\u3001\u5c0e\u4f53\u304c\u7b50\u4f53\u306e\u58c1\u306b\u63a5\u89e6\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u5834\u5408\u306f\u7d76\u7e01\u7aef\u5b50\u53f0\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u30c6\u30b9\u30c8\u691c\u8a3c<\/strong>:\u8a2d\u7f6e\u5f8c\u3001\u3059\u3079\u3066\u306e\u56de\u8def\u3092\u63a5\u7d9a\u3057\u3001\u30a4\u30f3\u30d0\u30fc\u30bf\u3092\u5207\u308a\u96e2\u3057\u305f\u72b6\u614b\u3067\u3001DC+\u304a\u3088\u3073DC-\u30d0\u30b9\u30d0\u30fc\u304b\u3089\u30b3\u30f3\u30d0\u30a4\u30ca\u7b50\u4f53\u307e\u3067\u306e\u7d76\u7e01\u62b5\u6297\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u6e2c\u5b9a\u3055\u308c\u305f\u62b5\u6297\u5024\u306f1M\u03a9\u4ee5\u4e0a\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4f4e\u3044\u5024\u306f\u3001\u901a\u96fb\u524d\u306b\u4fee\u6b63\u304c\u5fc5\u8981\u306a\u7d76\u7e01\u640d\u50b7\u307e\u305f\u306f\u4e0d\u9069\u5207\u306a\u7d42\u7aef\u3092\u793a\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u63a5\u5730\u5c0e\u4f53\u30bf\u30a4\u30d7<\/th><th class=\"has-text-align-center\" data-align=\"center\">\u6a5f\u80fd<\/th><th class=\"has-text-align-center\" data-align=\"center\">\u30b5\u30a4\u30ba\u53c2\u8003<\/th><th class=\"has-text-align-center\" data-align=\"center\">\u5178\u578b\u7684\u306a\u30b5\u30a4\u30ba<\/th><th class=\"has-text-align-center\" data-align=\"center\">\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30fb\u30dd\u30a4\u30f3\u30c8<\/th><\/tr><\/thead><tbody><tr><td><strong>\u6a5f\u5668\u63a5\u5730\u5c0e\u4f53\uff08EGC\uff09<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">\u6545\u969c\u96fb\u6d41\u7d4c\u8def<\/td><td class=\"has-text-align-center\" data-align=\"center\">NEC \u8868 250.122<\/td><td class=\"has-text-align-center\" data-align=\"center\">10 AWG Cu<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u7b50\u4f53\u30a2\u30fc\u30b9\u30e9\u30b0<\/td><\/tr><tr><td><strong>\u63a5\u5730\u96fb\u6975\u5c0e\u4f53\uff08GEC\uff09<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">\u30a2\u30fc\u30b9\u63a5\u7d9a<\/td><td class=\"has-text-align-center\" data-align=\"center\">NEC \u8868 250.166<\/td><td class=\"has-text-align-center\" data-align=\"center\">6 AWG Cu<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u30a2\u30fc\u30b9\u30ed\u30c3\u30c9\u30af\u30e9\u30f3\u30d7<\/td><\/tr><tr><td><strong>\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u30b8\u30e3\u30f3\u30d1\u30fc\uff08\u30e1\u30a4\u30f3\uff09<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">\u6a5f\u6750\u63a5\u5408<\/td><td class=\"has-text-align-center\" data-align=\"center\">NEC 250.102(C)<\/td><td class=\"has-text-align-center\" data-align=\"center\">EGC\u3068\u540c\u3058<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u30d0\u30b9\u30d0\u30fc\u304b\u3089\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u30fc<\/td><\/tr><tr><td><strong>\u30a2\u30ec\u30a4\u30fb\u30d5\u30ec\u30fc\u30e0\u30fb\u30b0\u30e9\u30a6\u30f3\u30c9<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">\u30e2\u30b8\u30e5\u30fc\u30eb\u30fb\u30d5\u30ec\u30fc\u30e0\u306e\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0<\/td><td class=\"has-text-align-center\" data-align=\"center\">NEC 690.43(D)<\/td><td class=\"has-text-align-center\" data-align=\"center\">6-10 AWG Cu<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30b0\u30e9\u30f3\u30c9\u30d0\u30b9<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/10\/temp_diagram_1-111.webp\" alt=\"PV\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306e\u914d\u7dda\u56f3\uff1a\u30a2\u30fc\u30b9\u3068\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0 2025 - \u30d7\u30ed\u30bb\u30b9\u30d5\u30ed\u30fc\u56f3\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u306e\u8981\u4ef6\u3068\u65b9\u6cd5<\/h2>\n\n\n\n<p>\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u306f\u3001\u3059\u3079\u3066\u306e\u91d1\u5c5e\u90e8\u54c1\u9593\u306e\u7b49\u96fb\u4f4d\u63a5\u7d9a\u3092\u78ba\u7acb\u3057\u3001\u6545\u969c\u6642\u306e\u96fb\u5727\u5dee\u3092\u9632\u6b62\u3059\u308b\u3002NEC\u7b2c690.43\u6761\u306f\u3001PV\u30b7\u30b9\u30c6\u30e0\u306b\u5bfe\u3057\u3066\u7279\u5b9a\u306e\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u65b9\u6cd5\u3092\u7fa9\u52d9\u4ed8\u3051\u3066\u3044\u308b\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u30fc\u3068\u30d0\u30b9\u30d0\u30fc\u306e\u63a5\u5408<\/h3>\n\n\n\n<p>\u30e1\u30a4\u30f3\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u30b8\u30e3\u30f3\u30d1\u30fc\u306f\u3001\u63a5\u5730\u30d0\u30b9\u30d0\u30fc\u3092\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306e\u91d1\u5c5e\u7b50\u4f53\u306b\u63a5\u7d9a\u3057\u3001\u9732\u51fa\u3057\u305f\u3059\u3079\u3066\u306e\u91d1\u5c5e\u8868\u9762\u304c\u540c\u3058\u96fb\u4f4d\u306b\u306a\u308b\u3088\u3046\u306b\u3059\u308b\u3002\u3053\u306e\u63a5\u7d9a\u306b\u306f\u3001\u6a5f\u5668\u306b\u4f9b\u7d66\u3059\u308b\u6700\u5927\u306e\u975e\u63a5\u5730\u5c0e\u4f53\u306b\u57fa\u3065\u3044\u3066\u3001NEC 250.102(C)\u306b\u9069\u5408\u3059\u308b\u30b5\u30a4\u30ba\u306e\u5c0e\u4f53\u3092\u4f7f\u7528\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002.<\/p>\n\n\n\n<p><strong>\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u30b8\u30e3\u30f3\u30d1\u30fc\u306e\u53d6\u308a\u4ed8\u3051<\/strong>:\u63a5\u5730\u30d0\u30b9\u30d0\u30fc\u7aef\u5b50\u304b\u3089\u30cd\u30b8\u4ed8\u304d\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u63a5\u5730\u30b9\u30bf\u30c3\u30c9\u307e\u305f\u306f\u30e9\u30b0\u306b\u3001\u30ea\u30b9\u30c8\u3055\u308c\u305f\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u30b8\u30e3\u30f3\u30d1\u30fc\u3092\u53d6\u308a\u4ed8\u3051\u307e\u3059\u3002\u63a5\u7d9a\u30ca\u30c3\u30c8\u306e\u4e0b\u306b\u30b9\u30bf\u30fc\u30ef\u30c3\u30b7\u30e3\u3092\u4f7f\u7528\u3057\u3001\u5857\u88c5\u307e\u305f\u306f\u967d\u6975\u9178\u5316\u3092\u8cab\u901a\u3055\u305b\u3001\u91d1\u5c5e\u3068\u91d1\u5c5e\u304c\u78ba\u5b9f\u306b\u63a5\u89e6\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30e1\u30fc\u30ab\u30fc\u4ed5\u69d8\u306e\u30c8\u30eb\u30af\u3067\u7de0\u3081\u307e\u3059\uff08\u901a\u5e38M6\u91d1\u5177\u306e\u5834\u540810\uff5e15N-m\uff09\u3002.<\/p>\n\n\n\n<p><strong>\u975e\u91d1\u5c5e\u7b50\u4f53\u3078\u306e\u914d\u616e<\/strong>:\u30ac\u30e9\u30b9\u7e4a\u7dad\u88fd\u307e\u305f\u306f\u30dd\u30ea\u30ab\u30fc\u30dc\u30cd\u30fc\u30c8\u88fd\u306e\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306b\u306f\u3001\u3059\u3079\u3066\u306e\u91d1\u5c5e\u90e8\u54c1\uff08\u30d0\u30b9\u30d0\u30fc\u3001\u53d6\u4ed8\u3051\u91d1\u5177\uff09\u306b\u7d50\u5408\u3055\u308c\u305f\u5185\u90e8\u91d1\u5c5e\u63a5\u5730\u30d0\u30b9\u30d0\u30fc\u304c\u5fc5\u8981\u3067\u3059\u3002\u5916\u90e8\u63a5\u5730\u30e9\u30b0\u306f\u3001\u5185\u90e8\u63a5\u5730\u30d0\u30b9\u306b\u7d50\u5408\u3059\u308b\u7d76\u7e01\u30d6\u30c3\u30b7\u30f3\u30b0\u3092\u4ecb\u3057\u3066\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u3092\u8cab\u901a\u3059\u308b\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30e2\u30b8\u30e5\u30fc\u30eb\u30fb\u30d5\u30ec\u30fc\u30e0\u30fb\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u306e\u7d71\u5408<\/h3>\n\n\n\n<p>PV\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u30d5\u30ec\u30fc\u30e0\u306f\u3001NEC690.43(C)\u306b\u5f93\u3063\u3066\u3001\u30d5\u30ec\u30fc\u30e0\u53d6\u4ed8\u3051\u30ec\u30fc\u30eb\u3068\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306e\u63a5\u5730\u30b7\u30b9\u30c6\u30e0\u3092\u63a5\u7d9a\u3059\u308b\u6a5f\u5668\u63a5\u5730\u5c0e\u7dda\u3092\u901a\u3057\u3066\u63a5\u5730\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002\u3053\u306e\u5c0e\u7dda\u306f\u96f7\u653e\u96fb\u7d4c\u8def\u3092\u63d0\u4f9b\u3057\u3001\u5730\u7d61\u6642\u306e\u969c\u5bb3\u96fb\u6d41\u306e\u5e30\u9084\u3092\u78ba\u5b9f\u306b\u3059\u308b\u3002.<\/p>\n\n\n\n<p><strong>\u30d5\u30ec\u30fc\u30e0\u63a5\u5730\u5c0e\u4f53\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0<\/strong>:\u30a2\u30ec\u30a4\u53d6\u4ed8\u3051\u30ec\u30fc\u30eb\u304b\u3089\u30b3\u30f3\u30d0\u30a4\u30ca\u30dc\u30c3\u30af\u30b9\u306e\u63a5\u5730\u30d0\u30b9\u30d0\u30fc\u307e\u3067\u3001\u88f8\u307e\u305f\u306f\u7d76\u7e01\u3055\u308c\u305f 6-10 AWG \u9285\u5c0e\u7dda\u3092\u914d\u7dda\u3057\u307e\u3059\u3002\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u30d5\u30ec\u30fc\u30e0\u63a5\u7d9a\u90e8\u306b\u306f\u3001\u30ea\u30b9\u30c8\u3055\u308c\u305f\u63a5\u5730\u30e9\u30b0\u307e\u305f\u306f\u30ec\u30a4\u30a4\u30f3\u30e9\u30b0\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044-\u30d5\u30ec\u30fc\u30e0\u306b\u7a74\u3092\u958b\u3051\u308b\u3068\u3001\u30e1\u30fc\u30ab\u30fc\u627f\u8a8d\u306e\u53d6\u308a\u4ed8\u3051\u30dd\u30a4\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u306a\u3044\u9650\u308a\u3001UL\u30ea\u30b9\u30c8\u304c\u7121\u52b9\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u63a5\u7d9a\u65b9\u6cd5<\/strong>:\u30b9\u30c8\u30ea\u30f3\u30b0\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u306e\u4f4d\u7f6e\u306f\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u8907\u6570\u306e\u30a2\u30ec\u30a4\u30bb\u30af\u30b7\u30e7\u30f3\u304b\u3089\u306e\u500b\u3005\u306e\u30d5\u30ec\u30fc\u30e0\u63a5\u5730\u5c0e\u4f53\u3092\u7d71\u5408\u3059\u308b\u30a2\u30ec\u30a4\u30d5\u30ec\u30fc\u30e0\u63a5\u5730\u53ce\u96c6\u30dd\u30a4\u30f3\u30c8\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002\u5404\u30d5\u30ec\u30fc\u30e0\u63a5\u5730\u7dda\u306b\u5727\u7e2e\u30e9\u30b0\u3092\u53d6\u308a\u4ed8\u3051\u3001\u3059\u3079\u3066\u306e\u30e9\u30b0\u3092\u5341\u5206\u306a\u63a5\u89e6\u9762\u7a4d\u3092\u6301\u3064\u5171\u901a\u63a5\u5730\u30d0\u30b9\u30d0\u30fc\u7aef\u5b50\u306b\u56fa\u5b9a\u3059\u308b\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30d0\u30b9\u30d0\u30fc\u9593\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0<\/h3>\n\n\n\n<p>\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306b\u3001\u5171\u901a\u306e\u53d6\u4ed8\u3051\u306b\u3088\u3063\u3066\u672c\u8cea\u7684\u306b\u7d50\u5408\u3055\u308c\u3066\u3044\u306a\u3044\u5225\u3005\u306e\u30d7\u30e9\u30b9\u3068\u30de\u30a4\u30ca\u30b9\u306e\u30d0\u30b9\u30d0\u30fc\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u4f4e\u62b5\u6297\u6e2c\u5b9a\u306b\u3088\u3063\u3066\u7d50\u5408\u306e\u5b8c\u5168\u6027\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002DC\u30d0\u30b9\u30d0\u30fc\u540c\u58eb\u306f(\u6975\u6027\u304c\u7570\u306a\u308b\u305f\u3081)\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u53d6\u308a\u4ed8\u3051\u91d1\u5177\u3084\u69cb\u9020\u90e8\u54c1\u306f\u63a5\u5730\u30b7\u30b9\u30c6\u30e0\u306b\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u53d6\u308a\u4ed8\u3051\u91d1\u5177\u306e\u63a5\u7740<\/strong>:\u30d0\u30b9\u30d0\u30fc\u53d6\u308a\u4ed8\u3051\u30a4\u30f3\u30b7\u30e5\u30ec\u30fc\u30bf\uff08\u30b9\u30bf\u30f3\u30c9\u30aa\u30d5\uff09\u306f\u3001\u53d6\u308a\u4ed8\u3051\u30dc\u30eb\u30c8\u304c\u30a4\u30f3\u30b7\u30e5\u30ec\u30fc\u30bf\u306e\u91d1\u5c5e\u30d9\u30fc\u30b9\u3068\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u3092\u7d50\u5408\u3057\u3066\u3044\u308b\u9593\u3001\u96fb\u6c17\u7684\u7d76\u7e01\u3092\u63d0\u4f9b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u53d6\u308a\u4ed8\u3051\u30dc\u30eb\u30c8\u306e\u982d\u306e\u4e0b\u306b\u6b6f\u4ed8\u304d\u30ed\u30c3\u30af\u30ef\u30c3\u30b7\u30e3\u30fc\u3092\u53d6\u308a\u4ed8\u3051\u3001\u5857\u6599\u3092\u6d78\u900f\u3055\u305b\u3066\u4f4e\u62b5\u6297\u63a5\u7d9a\u3092\u78ba\u7acb\u3059\u308b\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30c8\u30eb\u30af\u4ed5\u69d8\u3068\u691c\u8a3c<\/h3>\n\n\n\n<p>\u3059\u3079\u3066\u306e\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u63a5\u7d9a\u306f\u3001\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3092\u640d\u50b7\u3059\u308b\u3053\u3068\u306a\u304f\u9069\u5207\u306a\u63a5\u89e6\u5727\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u3001\u9069\u5207\u306a\u30c8\u30eb\u30af\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u3002\u30c8\u30eb\u30af\u4e0d\u8db3\u306f\u3001\u6545\u969c\u96fb\u6d41\u306e\u4e0b\u3067\u904e\u71b1\u3059\u308b\u9ad8\u62b5\u6297\u63a5\u7d9a\u3092\u751f\u307f\u51fa\u3057\u307e\u3059\u3002\u904e\u5ea6\u306e\u30c8\u30eb\u30af\u306f\u3001\u30cd\u30b8\u5c71\u3092\u640d\u50b7\u3057\u305f\u308a\u3001\u5c0e\u4f53\u3092\u62bc\u3057\u3064\u3076\u3057\u305f\u308a\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u63a8\u5968\u30c8\u30eb\u30af\u5024<\/strong>:<br>- M6\u30a2\u30fc\u30b9\u91d1\u5177\uff1a8\uff5e10N\u30fbm\uff0870\uff5e88lb\u30fbin\uff09<br>- M8\u30a2\u30fc\u30b9\u91d1\u5177\uff1a15\uff5e18N\u30fbm\uff08133\uff5e159lb\u30fbin\uff09<br>- \u63a5\u5730\u30e9\u30b0\u306e\u7d42\u7aef\uff1a\u30e1\u30fc\u30ab\u30fc\u4ed5\u69d8\u306b\u3088\u308b\uff08\u901a\u5e3810\uff5e20N-m\uff09<br>- \u30a2\u30fc\u30b9\u30ed\u30c3\u30c9\u30af\u30e9\u30f3\u30d7\uff1a20\uff5e25N\u30fbm\uff08177\uff5e221lb\u30fbin\uff09<\/p>\n\n\n\n<p><strong>\u691c\u8a3c\u624b\u9806<\/strong>:\u3059\u3079\u3066\u306e\u63a5\u5730\u63a5\u7d9a\u306b\u306f\u3001\u6821\u6b63\u3055\u308c\u305f\u30c8\u30eb\u30af\u30c9\u30e9\u30a4\u30d0\u30fc\u307e\u305f\u306f\u30c8\u30eb\u30af\u30ec\u30f3\u30c1\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u9069\u5207\u306a\u53d6\u308a\u4ed8\u3051\u3092\u76ee\u8996\u3067\u78ba\u8a8d\u3067\u304d\u308b\u3088\u3046\u306b\u3001\u30c8\u30eb\u30af\u3092\u304b\u3051\u305f\u63a5\u7d9a\u90e8\u306b\u30da\u30a4\u30f3\u30c8\u30da\u30f3\u307e\u305f\u306f\u7acb\u4f1a\u4eba\u30de\u30fc\u30af\u3067\u5370\u3092\u3064\u3051\u308b\u3002\u691c\u67fb\u8a18\u9332\u306e\u305f\u3081\u3001\u53d6\u308a\u4ed8\u3051\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u306b\u30c8\u30eb\u30af\u5024\u3092\u8a18\u9332\u3059\u308b\u3053\u3068\u3002.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u26a0\ufe0f <strong>\u91cd\u8981\u306a\u5b89\u5168\u6027<\/strong>:\u30cd\u30b8\u5c71\u3092\u5f62\u6210\u3059\u308b\u30cd\u30b8\u3084\u30b7\u30fc\u30c8\u30e1\u30bf\u30eb\u30cd\u30b8\u306f\u3001\u63a5\u89e6\u9762\u7a4d\u304c\u4e0d\u8db3\u3057\u3001\u632f\u52d5\u306b\u3088\u308b\u3086\u308b\u307f\u304c\u767a\u751f\u3059\u308b\u305f\u3081\u3001\u7d76\u5bfe\u306b\u4f7f\u7528\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u306d\u3058\u7a74\u306b\u30ed\u30c3\u30af\u30ef\u30c3\u30b7\u30e3\u3092\u5165\u308c\u305f\u6a5f\u68b0\u306d\u3058\u304b\u3001\u30ad\u30e3\u30d7\u30c6\u30a3\u30d6\u30ca\u30c3\u30c8\u306e\u307f\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n<\/blockquote>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/10\/temp_additional_1-60.jpg\" alt=\"PV\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306e\u63a5\u5730\u304a\u3088\u3073\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u90e8\u54c1\uff08\u30d0\u30b9\u30d0\u30fc\u63a5\u7d9a\u3092\u793a\u3059 \u63a5\u5730\u30e9\u30b0\u3068\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u30b8\u30e3\u30f3\u30d1\u30fc\u306b\u3088\u308b\u6a5f\u5668\u63a5\u5730\u5c0e\u4f53\u306e\u7d71\u5408\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u5c0e\u4f53\u30b5\u30a4\u30ba\u8a08\u7b97<\/h2>\n\n\n\n<p>\u9069\u5207\u306a\u5c0e\u4f53\u30b5\u30a4\u30b8\u30f3\u30b0\u3092\u884c\u3046\u3053\u3068\u3067\u3001\u8a31\u5bb9\u53ef\u80fd\u306a\u96fb\u5727\u964d\u4e0b\u3092\u7dad\u6301\u3057\u3064\u3064\u3001\u9023\u7d9a\u96fb\u6d41\u306b\u5bfe\u3057\u3066\u5341\u5206\u306a\u5bb9\u91cf\u3092\u78ba\u4fdd\u3059\u308b\u3002NEC\u7b2c690\u6761\u306b\u306f\u3001PV\u30b7\u30b9\u30c6\u30e0\u306e\u5177\u4f53\u7684\u306a\u8a08\u7b97\u65b9\u6cd5\u304c\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b9\u30c8\u30ea\u30f3\u30b0\u5165\u529b\u5c0e\u4f53\u306e\u30b5\u30a4\u30b8\u30f3\u30b0<\/h3>\n\n\n\n<p>\u30a2\u30ec\u30a4\u304b\u3089\u30b3\u30f3\u30d0\u30a4\u30ca\u30dc\u30c3\u30af\u30b9\u307e\u3067\u306e\u30b9\u30c8\u30ea\u30f3\u30b0\u5165\u529b\u5c0e\u4f53\u306f\u3001\u9069\u5207\u306a\u5b89\u5168\u4fc2\u6570\u3068\u6e29\u5ea6\u30c7\u30a3\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u7528\u3044\u3066\u6700\u5927\u30b9\u30c8\u30ea\u30f3\u30b0\u96fb\u6d41\u3092\u51e6\u7406\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002NEC 690.8(B)(1)\u306f\u8a08\u7b97\u65b9\u6cd5\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u308b\u3002.<\/p>\n\n\n\n<p><strong>\u30d9\u30fc\u30b9\u96fb\u6d41\u306e\u8a08\u7b97<\/strong>:\u30b9\u30c8\u30ea\u30f3\u30b0\u306e\u6700\u5927\u96fb\u6d41 = \u30e2\u30b8\u30e5\u30fc\u30eb I_sc \u00d7 1.56.\u77ed\u7d61\u96fb\u6d4112A\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u5834\u5408\uff1aI_string = 12A \u00d7 1.56 = 18.72A\u3002\u3053\u308c\u306f\u3001\u6545\u969c\u6761\u4ef6\u4e0b\u3067\u306e\u6700\u5927\u9023\u7d9a\u96fb\u6d41\u3092\u793a\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u6e29\u5ea6\u88dc\u6b63<\/strong>:NEC\u8868310.15(B)(2)(a)\u306e\u6e29\u5ea6\u88dc\u6b63\u4fc2\u6570\u3092\u5468\u56f2\u6e29\u5ea6\u3068\u5c0e\u4f53\u7d76\u7e01\u5b9a\u683c\u306b\u57fa\u3065\u3044\u3066\u9069\u7528\u3059\u308b\u3002\u5468\u56f2\u6e29\u5ea640\u2103\u3001\u7d76\u7e01\u6e29\u5ea690\u2103\u306e\u5834\u5408(THWN-2)\uff1a\u88dc\u6b63\u4fc2\u6570=0.91\u3002\u9ad8\u6e29\u6642\u306e\u5fc5\u8981\u5c0e\u4f53\u96fb\u6d41\u5bb9\u91cf\uff1a18.72a \/ 0.91 = 20.6a.<\/p>\n\n\n\n<p><strong>\u5c0e\u4f53\u9078\u629e<\/strong>:NEC\u8868310.16\u3088\u308a\u300190\u2103\u7d76\u7e01(THWN-2)\u306e12AWG\u9285\u306f30\u2103\u306730A\u306e\u96fb\u6d41\u5bb9\u91cf\u3092\u63d0\u4f9b\u3057\u3001\u8981\u6c42\u3055\u308c\u308b20.6A\u3092\u8d85\u3048\u308b\u3002\u96fb\u7dda\u7ba1\u306e\u5145\u586b\u304a\u3088\u3073\u675f\u306d\u306e\u8abf\u6574\u4fc2\u6570\u304c\u3001\u5fc5\u8981\u6700\u5c0f\u5024\u3088\u308a\u8010\u529b\u3092\u4f4e\u4e0b\u3055\u305b\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<p><strong>\u96fb\u5727\u964d\u4e0b\u306e\u691c\u8a3c<\/strong>:\u96fb\u5727\u964d\u4e0b\u3092\u8a08\u7b97\u3059\u308b\uff1aV_drop = 2 \u00d7 I \u00d7 L \u00d7 R\u3001\u3053\u3053\u3067 I = \u30b9\u30c8\u30ea\u30f3\u30b0\u96fb\u6d41\u3001L = \u7247\u9053\u8ddd\u96e2\u3001R = \u5c0e\u4f53\u62b5\u6297\uff0812 AWG \u306e\u5834\u5408\u30010.002 \u03a9\/\u30d5\u30a3\u30fc\u30c8\uff09\u3002100\u30d5\u30a3\u30fc\u30c8\u306e\u5834\u5408V_drop = 2 \u00d7 18.72A \u00d7 100ft \u00d7 0.002 \u03a9\/ft = 7.49V\u3002400V\u306e\u30b9\u30c8\u30ea\u30f3\u30b0\u96fb\u5727\u306e\u5834\u5408\u3001\u3053\u308c\u306f1.87%\u306e\u96fb\u5727\u964d\u4e0b\u306b\u76f8\u5f53\u3057\u3001NEC690.7(D)\u304c\u63a8\u5968\u3059\u308b\u6700\u59273%\u306e\u7bc4\u56f2\u5185\u3067\u3042\u308b\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u51fa\u529b\u5c0e\u4f53\u306e\u30b5\u30a4\u30b8\u30f3\u30b0<\/h3>\n\n\n\n<p>\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306e\u51fa\u529b\u5c0e\u4f53\u306f\u3001\u9069\u5207\u306a\u5b89\u5168\u4fc2\u6570\u3092\u7528\u3044\u3066\u3001\u3059\u3079\u3066\u306e\u4e26\u5217\u30b9\u30c8\u30ea\u30f3\u30b0\u304b\u3089\u306e\u8907\u5408\u96fb\u6d41\u3092\u51e6\u7406\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002.<\/p>\n\n\n\n<p><strong>\u8907\u5408\u96fb\u6d41\u8a08\u7b97<\/strong>:\u7dcf\u51fa\u529b\u96fb\u6d41 = N_strings \u00d7 I_string_max.8\u30b9\u30c8\u30ea\u30f3\u30b0\u30b9\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u306e\u5834\u5408I_output = 8 \u00d7 18.72A = 149.76A \u9023\u7d9a\u3002NEC 690.8(B)(1)\u306b\u5f93\u3063\u3066125%\u5b89\u5168\u7387\u3092\u9069\u7528\u3059\u308b\uff1a\u5fc5\u8981\u306a\u30a2\u30f3\u30da\u30a2\u5bb9\u91cf = 149.76A \u00d7 1.25 = 187.2A.<\/p>\n\n\n\n<p><strong>\u6e29\u5ea6\u30c7\u30a3\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0<\/strong>:\u5468\u56f2\u6e29\u5ea640\u2103\u3001\u5c0e\u4f53\u6e29\u5ea690\u2103\u306e\u5834\u5408\uff1a\u88dc\u6b63\u4fc2\u6570 = 0.91.\u6e29\u5ea6\u306b\u304a\u3051\u308b\u5fc5\u8981\u5c0e\u4f53\u5bb9\u91cf\uff1a187.2A \/ 0.91 = 205.7A\u3002NEC\u8868310.16\u3088\u308a\u30014\/0 AWG\u9285(90\u00b0C)\u306f260A\u3092\u4f9b\u7d66\u3057\u3001\u8981\u4ef6\u3092\u6e80\u305f\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u5c0e\u7ba1\u5145\u586b\u8abf\u6574<\/strong>:\u8907\u6570\u306e\u901a\u96fb\u5c0e\u4f53\u304c\u96fb\u7dda\u7ba1\u3092\u5171\u6709\u3059\u308b\u5834\u5408\u306f\u3001NEC\u8868310.15(B)(3)(a)\u306e\u8abf\u6574\u4fc2\u6570\u3092\u9069\u7528\u3059\u308b\u30024-6\u672c\u306e\u5c0e\u4f53\u306e\u5834\u5408: \u8abf\u6574 = 0.80.260A \u00d7 0.80 = 208A &gt; 205.7A\u304c\u8981\u6c42\u3055\u308c\u308b\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6a5f\u5668\u63a5\u5730\u5c0e\u4f53\u306e\u30b5\u30a4\u30b8\u30f3\u30b0<\/h3>\n\n\n\n<p>\u6a5f\u5668\u63a5\u5730\u5c0e\u4f53\u306e\u30b5\u30a4\u30b8\u30f3\u30b0\u306f\u3001\u904e\u96fb\u6d41\u4fdd\u8b77\u88c5\u7f6e\u306e\u5b9a\u683c\u306b\u57fa\u3065\u3044\u3066 NEC \u8868 250.122 \u306b\u5f93\u3046\u3002.<\/p>\n\n\n\n<p><strong>\u30b5\u30a4\u30b8\u30f3\u30b0\u65b9\u6cd5<\/strong>:60A \u4e3b\u51fa\u529b\u904e\u96fb\u6d41\u4fdd\u8b77\u4ed8\u304d\u30b3\u30f3\u30d0\u30a4\u30ca\u306e\u5834\u5408\u3001\u8868 250.122 \u306f\u6700\u5c0f 10AWG \u9285 EGC \u3092\u898f\u5b9a\u3057\u3066\u3044\u308b\u3002\u3053\u308c\u306f\u7d76\u5bfe\u7684\u306a\u6700\u5c0f\u5024\u3067\u3042\u308a\u3001\u591a\u304f\u306e\u8a2d\u5099\u3067\u306f\u6a5f\u68b0\u7684\u5f37\u5ea6\u3068\u5c06\u6765\u7684\u306a\u62e1\u5f35\u6027\u3092\u8003\u616e\u3057\u3066\u3001\u56de\u8def\u5c0e\u4f53\u30b2\u30fc\u30b8\u306b\u4e00\u81f4\u3059\u308b\u3088\u308a\u592a\u3044\u5c0e\u4f53\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u3002.<\/p>\n\n\n\n<p><strong>\u30aa\u30fc\u30d0\u30fc\u30b5\u30a4\u30ba\u306e\u30e1\u30ea\u30c3\u30c8<\/strong>:EGC\u3092\u56de\u8def\u5c0e\u4f53\u3068\u540c\u3058\u30b5\u30a4\u30ba\uff08\u4f8b\u3048\u3070\u30014AWG\u306e\u975e\u63a5\u5730\u5c0e\u4f53\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u306f4AWG\uff09\u306b\u8a2d\u7f6e\u3059\u308b\u3053\u3068\u3067\u3001(1)\u4f4e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306e\u6545\u969c\u96fb\u6d41\u7d4c\u8def\u306b\u3088\u308a\u3001\u3088\u308a\u9ad8\u901f\u306a\u4fdd\u8b77\u52d5\u4f5c\u304c\u53ef\u80fd\u306b\u306a\u308b\u3001(2)\u30d5\u30a3\u30fc\u30eb\u30c9\u30b5\u30fc\u30d3\u30b9\u3067\u306e\u6a5f\u68b0\u7684\u8010\u4e45\u6027\u304c\u5411\u4e0a\u3059\u308b\u3001(3)\u914d\u7dda\u3092\u5909\u66f4\u3059\u308b\u3053\u3068\u306a\u304f\u5c06\u6765\u306e\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u3002.<\/p>\n\n\n\n<p><strong>\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u3078\u306e\u914d\u616e<\/strong>:\u30a2\u30eb\u30df\u30cb\u30a6\u30e0\u56de\u8def\u5c0e\u4f53\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001NEC 250.122(A)\u3067\u306f\u3001\u8868\u306e\u540c\u7b49\u6027\u306b\u5f93\u3063\u3066EGC\u30b5\u30a4\u30ba\u3092\u5927\u304d\u304f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u300210AWG\u306e\u9285\u7dda\u304c\u5fc5\u8981\u306a60A\u4fdd\u8b77\u306e\u5834\u5408\u3001\u30a2\u30eb\u30df\u30cb\u30a6\u30e0EGC\u306f\u6700\u5c0f8AWG\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u30b5\u30fc\u30ad\u30c3\u30c8\u30fb\u30bf\u30a4\u30d7<\/th><th class=\"has-text-align-center\" data-align=\"center\">\u73fe\u5728\u306e\u8a08\u7b97<\/th><th class=\"has-text-align-center\" data-align=\"center\">\u5b89\u5168\u4fc2\u6570<\/th><th class=\"has-text-align-center\" data-align=\"center\">\u4ee3\u8868\u7684\u306a\u5c0e\u4f53<\/th><th class=\"has-text-align-center\" data-align=\"center\">\u6700\u5c0fEGC\u30b5\u30a4\u30ba<\/th><\/tr><\/thead><tbody><tr><td><strong>\u30b9\u30c8\u30ea\u30f3\u30b0\u5165\u529b\uff0818A\u30b9\u30c8\u30ea\u30f3\u30b0\uff09<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">I_sc \u00d7 1.56<\/td><td class=\"has-text-align-center\" data-align=\"center\">1.56\u306b\u53ce\u9332<\/td><td class=\"has-text-align-center\" data-align=\"center\">12 AWG Cu\uff0830A\uff09<\/td><td class=\"has-text-align-center\" data-align=\"center\">10 AWG Cu<\/td><\/tr><tr><td><strong>\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u51fa\u529b\uff088\u5f26\uff09<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">\u3059\u3079\u3066\u306e\u6587\u5b57\u5217\u3092\u5408\u8a08\u3059\u308b<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u00d71.25<\/td><td class=\"has-text-align-center\" data-align=\"center\">4\/0 AWG Cu\uff08260A\uff09<\/td><td class=\"has-text-align-center\" data-align=\"center\">10 AWG Cu<\/td><\/tr><tr><td><strong>\u63a5\u5730\u96fb\u6975\u5c0e\u4f53<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">\u8868250.166\u306b\u3088\u308b<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u8a72\u5f53\u306a\u3057<\/td><td class=\"has-text-align-center\" data-align=\"center\">6 AWG Cu\u4ee5\u4e0a<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u8a72\u5f53\u306a\u3057\uff08\u30b0\u30e9\u30a6\u30f3\u30c9\uff09<\/td><\/tr><tr><td><strong>\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u30fb\u30b8\u30e3\u30f3\u30d1\u30fc<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">250.102(C)\u306b\u3088\u308b\u3002<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u8a72\u5f53\u306a\u3057<\/td><td class=\"has-text-align-center\" data-align=\"center\">EGC\u3068\u540c\u3058<\/td><td class=\"has-text-align-center\" data-align=\"center\">10 AWG Cu<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/10\/temp_diagram_3-107-scaled.webp\" alt=\"PV\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306e\u914d\u7dda\u56f3\uff1a\u30a2\u30fc\u30b9\u3068\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0 2025 - \u30d7\u30ed\u30bb\u30b9\u30d5\u30ed\u30fc\u56f3\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u914d\u7dda\u8a2d\u7f6e\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h2>\n\n\n\n<p>\u9069\u5207\u306a\u8a2d\u7f6e\u6280\u8853\u306f\u3001\u9577\u671f\u7684\u306a\u63a5\u7d9a\u4fe1\u983c\u6027\u3092\u4fdd\u8a3c\u3057\u3001\u5c06\u6765\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3092\u5bb9\u6613\u306b\u3057\u307e\u3059\u3002\u6a19\u6e96\u5316\u3055\u308c\u305f\u624b\u6cd5\u306b\u5f93\u3046\u3053\u3068\u3067\u3001\u8a2d\u7f6e\u5168\u4f53\u306b\u4e00\u8cab\u3057\u305f\u54c1\u8cea\u304c\u751f\u307e\u308c\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5c0e\u4f53\u306e\u6e96\u5099\u3068\u5265\u96e2<\/h3>\n\n\n\n<p><strong>\u30b9\u30c8\u30ea\u30c3\u30d7\u9577\u691c\u8a3c<\/strong>:\u7aef\u5b50\u306e\u6df1\u3055\u306b\u5408\u3063\u305f\u9285\u304c\u9732\u51fa\u3059\u308b\u3088\u3046\u306b\u3001\u5c0e\u4f53\u306e\u7d76\u7e01\u4f53\u3092\u5265\u304f\uff08\u901a\u5e38\u3001\u30cd\u30b8\u7aef\u5b50\u3067\u306f10\uff5e12mm\u3001\u30b9\u30d7\u30ea\u30f3\u30b0\u30af\u30e9\u30f3\u30d7\u7aef\u5b50\u3067\u306f8\uff5e10mm\uff09\u3002\u30b9\u30c8\u30ea\u30c3\u30d7\u306e\u9577\u3055\u304c\u9577\u3059\u304e\u308b\u3068\u9285\u304c\u9732\u51fa\u3057\u3001\u611f\u96fb\u306e\u5371\u967a\u304c\u9ad8\u307e\u308b\u3002\u30b9\u30c8\u30ea\u30c3\u30d7\u306e\u9577\u3055\u304c\u8db3\u308a\u306a\u3044\u3068\u3001\u7aef\u5b50\u304c\u5341\u5206\u306b\u63a5\u89e6\u3057\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<p><strong>\u30ef\u30a4\u30e4\u30fc\u30b9\u30c8\u30ea\u30c3\u30d7\u5de5\u5177<\/strong>:\u5c0e\u7dda\u306e\u30cb\u30c3\u30ad\u30f3\u30b0\u3092\u9632\u3050\u30c7\u30d7\u30b9\u30b2\u30fc\u30b8\u30b9\u30c8\u30c3\u30d7\u306e\u4ed8\u3044\u305f\u9ad8\u54c1\u8cea\u306e\u30ef\u30a4\u30e4\u30fc\u30b9\u30c8\u30ea\u30c3\u30d1\u30fc\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5c0e\u7dda\u306e\u7d20\u7dda\u304c\u640d\u50b7\u3057\u3066\u3044\u308b\u3068\u3001\u9ad8\u62b5\u6297\u306e\u30db\u30c3\u30c8\u30b9\u30dd\u30c3\u30c8\u3084\u6a5f\u68b0\u7684\u306a\u5f31\u70b9\u304c\u751f\u3058\u307e\u3059\u3002\u30b9\u30c8\u30ea\u30c3\u30d7\u3055\u308c\u305f\u5c0e\u4f53\u3092\u691c\u67fb\u3057\u3001\u7d20\u7dda\u306e\u640d\u50b7\u304c\u898b\u3089\u308c\u308b\u5834\u5408\u306f\u3001\u5c0e\u4f53\u3092\u518d\u30ab\u30c3\u30c8\u3057\u3001\u518d\u30b9\u30c8\u30ea\u30c3\u30d7\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<p><strong>\u30b9\u30c8\u30e9\u30f3\u30c9\u30fb\u30c4\u30a4\u30b9\u30c8<\/strong>:\u30d5\u30a7\u30eb\u30fc\u30eb\u306e\u306a\u3044\u649a\u308a\u7dda\u5c0e\u4f53\u306e\u5834\u5408\u3001\u9732\u51fa\u3057\u305f\u649a\u308a\u7dda\u3092\u6642\u8a08\u56de\u308a\uff08\u7aef\u5b50\u306d\u3058\u306e\u65b9\u5411\u3068\u4e00\u81f4\uff09\u306b\u306d\u3058\u3063\u3066\u304b\u3089\u633f\u5165\u3059\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u7de0\u3081\u4ed8\u3051\u4e2d\u306b\u7d20\u7dda\u304c\u5e83\u304c\u308b\u306e\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u91cd\u8981\u306a\u63a5\u7d9a\u306e\u5834\u5408\u306f\u3001\u3059\u3079\u3066\u306e\u7d20\u7dda\u304c\u7aef\u5b50\u306e\u63a5\u89e6\u90e8\u306b\u304b\u307f\u5408\u3046\u3088\u3046\u306b\u3001\u649a\u308a\u7dda\u5c0e\u4f53\u306b\u30ef\u30a4\u30e4\u30d5\u30a7\u30eb\u30fc\u30eb\u3092\u53d6\u308a\u4ed8\u3051\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7aef\u5b50\u63a5\u7d9a\u30c6\u30af\u30cb\u30c3\u30af<\/h3>\n\n\n\n<p><strong>\u30c8\u30eb\u30af\u5236\u5fa1<\/strong>:\u3059\u3079\u3066\u306e\u7aef\u5b50\u306b\u30c8\u30eb\u30af\u5236\u9650\u30c9\u30e9\u30a4\u30d0\u30fc\u307e\u305f\u306f\u30c8\u30eb\u30af\u30ec\u30f3\u30c1\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u7aef\u5b50\u30e1\u30fc\u30ab\u30fc\u306f\u30c8\u30eb\u30af\u5024\u3092\u6307\u5b9a\u3057\u3066\u3044\u307e\u3059\uff08\u901a\u5e38\u3001\u30b9\u30c8\u30ea\u30f3\u30b0\u7aef\u5b50\u306f1.5\uff5e2.5N-m\u3001\u30e1\u30a4\u30f3\u51fa\u529b\u30e9\u30b0\u306f10\uff5e15N-m\uff09\u3002\u30c8\u30eb\u30af\u304c\u4e0d\u8db3\u3059\u308b\u3068\u3001\u9ad8\u62b5\u6297\u306e\u63a5\u7d9a\u306b\u306a\u308a\u307e\u3059\u3002\u904e\u5ea6\u306e\u30c8\u30eb\u30af\u306f\u3001\u7aef\u5b50\u3092\u640d\u50b7\u3055\u305b\u305f\u308a\u3001\u5c0e\u7dda\u3092\u62bc\u3057\u3064\u3076\u3057\u305f\u308a\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u30b3\u30f3\u30d7\u30ec\u30c3\u30b7\u30e7\u30f3\u30fb\u30e9\u30b0\u306e\u53d6\u308a\u4ed8\u3051<\/strong>:\u5727\u7e2e\u30e9\u30b0\u3092\u4f7f\u7528\u3059\u308b\u51fa\u529b\u5c0e\u4f53\u306b\u306f\u3001\u5c0e\u4f53\u30b5\u30a4\u30ba\u306b\u5408\u3063\u305f\u9069\u5207\u306a\u30e9\u30b0\u30c0\u30a4\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u63a5\u7d9a\u3092\u5f31\u3081\u308b\u8907\u6570\u306e\u90e8\u5206\u7684\u306a\u5727\u7740\u3092\u907f\u3051\u308b\u305f\u3081\u3001\u4e00\u5ea6\u306e\u64cd\u4f5c\u3067\u30e9\u30b0\u3092\u5727\u7740\u3057\u3066\u304f\u3060\u3055\u3044\u3002AWG\u30b5\u30a4\u30ba\u3067\u306f50\u30dd\u30f3\u30c9\u3001\u305d\u308c\u4ee5\u4e0a\u306e\u5c0e\u4f53\u3067\u306f200\u30dd\u30f3\u30c9\u4ee5\u4e0a\u306e\u529b\u3067\u5f15\u5f35\u8a66\u9a13\u3092\u884c\u3044\u3001\u5727\u7740\u30d0\u30ec\u30eb\u304c\u5c0e\u4f53\u306e\u5f15\u304d\u51fa\u3057\u3092\u8a31\u5bb9\u3057\u306a\u304f\u306a\u3063\u305f\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<p><strong>\u7aef\u5b50\u53f0\u306e\u5411\u304d<\/strong>:\u7aef\u5b50\u53f0\u306e\u5411\u304d\u306f\u3001\u53ef\u80fd\u306a\u9650\u308a\u5e95\u9762\u304b\u3089\u5c0e\u7dda\u3092\u633f\u5165\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3002\u4e0a\u90e8\u304b\u3089\u306e\u5c0e\u4f53\u633f\u5165\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u5c0e\u4f53\u633f\u5165\u524d\u306b\u5c0e\u4f53\u306b\u30c9\u30ea\u30c3\u30d7\u30eb\u30fc\u30d7\u3092\u8a2d\u7f6e\u3057\u3001\u7aef\u5b50\u306b\u5230\u9054\u3059\u308b\u524d\u306b\u6c34\u304c\u6392\u51fa\u3055\u308c\u308b\u3088\u3046\u306b\u3059\u308b\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5c0e\u4f53\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u30b5\u30dd\u30fc\u30c8<\/h3>\n\n\n\n<p><strong>\u66f2\u3052\u534a\u5f84\u30b3\u30f3\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9<\/strong>:\u6700\u5c0f\u66f2\u3052\u534a\u5f84\u306f\u3001\u5358\u7dda\u3067\u306f\u5c0e\u4f53\u76f4\u5f84\u306e 6 \u500d\u3001\u591a\u82af\u30b1\u30fc\u30d6\u30eb\u3067\u306f 8 \u500d\u3092\u7dad\u6301\u3059\u308b\u3053\u3068\u3002\u304d\u3064\u3044\u66f2\u3052\u306f\u5c0e\u4f53\u306e\u7d76\u7e01\u3092\u640d\u50b7\u3057\u3001\u5fdc\u529b\u96c6\u4e2d\u70b9\u3092\u4f5c\u308b\u3002\u66f2\u3052\u5fdc\u529b\u3092\u5206\u6563\u3055\u305b\u308b\u305f\u3081\u3001\u7b50\u4f53\u306e\u5165\u53e3\u306b\u306f\u30b9\u30c8\u30ec\u30a4\u30f3\u30ea\u30ea\u30fc\u30d5\u30d6\u30c3\u30b7\u30f3\u30b0\u3092\u4f7f\u7528\u3059\u308b\u3002.<\/p>\n\n\n\n<p><strong>\u30b9\u30c8\u30ec\u30a4\u30f3\u30ea\u30ea\u30fc\u30d5\u6cd5<\/strong>:\u30b1\u30fc\u30d6\u30eb\u30b0\u30e9\u30f3\u30c9\u3001\u30b3\u30fc\u30c9\u30b0\u30ea\u30c3\u30d7\u3001\u307e\u305f\u306f\u30b9\u30c8\u30ec\u30a4\u30f3\u30ea\u30ea\u30fc\u30d5\u30b3\u30cd\u30af\u30bf\u3092\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306b\u5165\u308b\u3059\u3079\u3066\u306e\u5c0e\u7dda\u306b\u53d6\u308a\u4ed8\u3051\u308b\u3002\u3053\u308c\u3089\u306e\u91d1\u5177\u306f\u3001\u5c0e\u4f53\u88ab\u8986\uff08\u9285\u7d20\u7dda\u3067\u306f\u306a\u3044\uff09\u3092\u30af\u30e9\u30f3\u30d7\u3057\u3001\u7aef\u5b50\u3078\u306e\u6a5f\u68b0\u7684\u306a\u5f15\u3063\u5f35\u308a\u529b\u306e\u4f1d\u9054\u3092\u9632\u304e\u307e\u3059\u3002\u30b0\u30e9\u30f3\u30c9\u3092\u7de0\u3081\u3059\u304e\u3066\u5c0e\u4f53\u306e\u7d76\u7e01\u3092\u640d\u50b7\u3057\u306a\u3044\u3088\u3046\u306b\u3001\u30b0\u30e9\u30f3\u30c9\u306e\u5727\u7e2e\u3092\u8abf\u6574\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<p><strong>\u5185\u90e8\u30b1\u30fc\u30d6\u30eb\u30de\u30cd\u30b8\u30e1\u30f3\u30c8<\/strong>:\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u5185\u306e\u5c0e\u7dda\u306f\u3001\u92ed\u5229\u306a\u30a8\u30c3\u30b8\u3092\u907f\u3051\u3001\u30d0\u30b9\u30d0\u30fc\u3068\u306e\u30af\u30ea\u30a2\u30e9\u30f3\u30b9\u3092\u4fdd\u3063\u3066\u914d\u7dda\u3059\u308b\u3002150-200mm\u3054\u3068\u306b\u5c0e\u7dda\u3092\u56fa\u5b9a\u3059\u308b\u30b1\u30fc\u30d6\u30eb\u30bf\u30a4\u30de\u30a6\u30f3\u30c8\u3092\u4f7f\u7528\u3059\u308b\u3002\u7aef\u5b50\u306b\u306f\u308f\u305a\u304b\u306a\u30b5\u30fc\u30d3\u30b9\u30eb\u30fc\u30d7\u3092\u6b8b\u3057\u3001\u5c0e\u7dda\u3092\u53d6\u308a\u5916\u3055\u305a\u306b\u90e8\u54c1\u3092\u4ea4\u63db\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3002\u30d7\u30e9\u30b9\u3068\u30de\u30a4\u30ca\u30b9\u306e\u5c0e\u7dda\u306e\u4ea4\u5dee\u306f\u907f\u3051\u308b\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30e9\u30d9\u30ea\u30f3\u30b0\u3068\u6587\u66f8\u5316<\/h3>\n\n\n\n<p><strong>\u7aef\u5b50\u8b58\u5225<\/strong>:\u8010\u5019\u6027\u30e9\u30d9\u30eb\u3092\u4f7f\u7528\u3057\u3066\u3001\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u306e\u84cb\u306e\u5185\u5074\u306e\u5404\u30b9\u30c8\u30ea\u30f3\u30b0\u5165\u529b\u7aef\u5b50\u4f4d\u7f6e\u306b\u30e9\u30d9\u30eb\u3092\u8cbc\u308b\u3002\u30b9\u30c8\u30ea\u30f3\u30b0\u756a\u53f7\u3068\u5bfe\u5fdc\u3059\u308b\u30a2\u30ec\u30a4\u306e\u4f4d\u7f6e\u3092\u542b\u3080\u3002\u3053\u306e\u6587\u66f8\u306f\u3001\u3069\u306e\u7269\u7406\u7684\u30b9\u30c8\u30ea\u30f3\u30b0\u304c\u3069\u306e\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u306e\u4f4d\u7f6e\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u7279\u5b9a\u3059\u308b\u305f\u3081\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u969b\u306b\u975e\u5e38\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u5c0e\u4f53\u8272\u5206\u3051<\/strong>:\u8a2d\u7f6e\u5168\u4f53\u3092\u901a\u3057\u3066\u4e00\u8cab\u3057\u305f\u914d\u8272\u3092\u7dad\u6301\u3059\u308b\u3053\u3068\u3002NEC 690.31(B)\u306f\u3001\u6700\u4f4e3\u30e1\u30fc\u30c8\u30eb\u3054\u3068\u306b\u7d42\u7aef\u70b9\u306e\u30de\u30fc\u30ad\u30f3\u30b0\u3092\u4f7f\u7528\u3057\u3066\u5c0e\u4f53\uff08\u30d7\u30e9\u30b9\u3001\u30de\u30a4\u30ca\u30b9\u3001\u63a5\u5730\uff09\u3092\u8b58\u5225\u3059\u308b\u3053\u3068\u3092\u7fa9\u52d9\u4ed8\u3051\u3066\u3044\u308b\u3002\u6a19\u6e96\u7684\u306a\u65b9\u6cd5\uff1a\u63a5\u5730\u3055\u308c\u3066\u3044\u306a\u3044\u30d7\u30e9\u30b9\u306f\u8d64\u307e\u305f\u306f\u8d64\u30b9\u30c8\u30e9\u30a4\u30d7\u3001\u63a5\u5730\u3055\u308c\u3066\u3044\u306a\u3044\u30de\u30a4\u30ca\u30b9\u306f\u767d\u307e\u305f\u306f\u7070\u8272\u3001\u63a5\u5730\u306f\u88f8\u307e\u305f\u306f\u7dd1\u3002.<\/p>\n\n\n\n<p><strong>\u914d\u7dda\u56f3\u63b2\u8f09<\/strong>:\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u306e\u84cb\u306e\u5185\u5074\u306b\u3001\u5b9f\u969b\u306e\u69cb\u7bc9\u6642\u306e\u69cb\u6210\u3092\u793a\u3059\u30e9\u30df\u30cd\u30fc\u30c8\u52a0\u5de5\u3055\u308c\u305f\u914d\u7dda\u56f3\u3092\u8cbc\u4ed8\u3059\u308b\u3053\u3068\u3002\u30b9\u30c8\u30ea\u30f3\u30b0\u6570\u3001\u5c0e\u4f53\u30b5\u30a4\u30ba\u3001\u4fdd\u8b77\u88c5\u7f6e\u5b9a\u683c\u3001\u8a2d\u7f6e\u65e5\u3092\u542b\u3080\u3002\u30b7\u30b9\u30c6\u30e0\u5909\u66f4\u6642\u306b\u306f\u56f3\u3092\u66f4\u65b0\u3059\u308b\u3053\u3068\u3002.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83c\udfaf <strong>\u30d7\u30ed\u304b\u3089\u306e\u30a2\u30c9\u30d0\u30a4\u30b9<\/strong>:\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u306e\u84cb\u3092\u9589\u3081\u308b\u524d\u306b\u3001\u5b8c\u6210\u3057\u305f\u914d\u7dda\u3092\u5199\u771f\u306b\u64ae\u3063\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u306e\u5199\u771f\u306b\u3088\u308a\u3001\u6570\u5e74\u5f8c\u306b\u5143\u306e\u8a2d\u7f6e\u4f5c\u696d\u54e1\u304c\u5165\u624b\u3067\u304d\u306a\u304f\u306a\u3063\u305f\u5834\u5408\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u5287\u7684\u306b\u7c21\u5358\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n<\/blockquote>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/sinobreaker.com\/wp-content\/uploads\/2025\/10\/temp_additional_2-60.jpg\" alt=\"\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u96fb\u6c17\u63a5\u7d9a\u306e\u305f\u3081\u306e\u30b3\u30f3\u30d7\u30ec\u30c3\u30b7\u30e7\u30f3\u30e9\u30b0\u306e\u30c8\u30eb\u30af\u4ed5\u69d8\u3068\u7aef\u5b50\u53f0\u63a5\u7d9a\u3092\u793a\u3059PV\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306e\u9069\u5207\u306a\u5c0e\u4f53\u7d42\u7aef\u6280\u8853\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u3088\u304f\u3042\u308b\u914d\u7dda\u306e\u9593\u9055\u3044\u3068\u4fee\u6b63<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e0d\u5341\u5206\u306a\u63a5\u5730\u5c0e\u4f53\u30b5\u30a4\u30ba<\/h3>\n\n\n\n<p><strong>\u554f\u984c\u70b9<\/strong>:\u30b5\u30a4\u30ba\u306e\u5c0f\u3055\u3044\u6a5f\u5668\u63a5\u5730\u5c0e\u4f53\u3092\u8a2d\u7f6e\u3059\u308b\u3053\u3068\u306f\u3001NEC 250.122 \u306b\u9055\u53cd\u3057\u3001\u904e\u96fb\u6d41\u4fdd\u8b77\u306e\u9069\u5207\u306a\u52d5\u4f5c\u3092\u59a8\u3052\u308b\u4e0d\u5341\u5206\u306a\u6545\u969c\u96fb\u6d41\u7d4c\u8def\u3092\u5f62\u6210\u3057\u307e\u3059\u3002\u5730\u7d61\u6642\u3001\u30b5\u30a4\u30ba\u306e\u5c0f\u3055\u3044 EGC \u9593\u306e\u904e\u5ea6\u306a\u96fb\u5727\u964d\u4e0b\u306f\u3001\u969c\u5bb3\u306e\u9664\u53bb\u3092\u9045\u3089\u305b\u3001\u6a5f\u5668\u306e\u640d\u50b7\u671f\u9593\u3092\u5ef6\u9577\u3059\u308b\u3002.<\/p>\n\n\n\n<p><strong>\u3088\u304f\u3042\u308b\u30b7\u30ca\u30ea\u30aa<\/strong>:12AWG\u306e\u56de\u8def\u5c0e\u4f53\u306714AWG\u306eEGC\u3092\u4f7f\u7528\uff08\u9023\u7d9a\u5c0e\u4f53\u898f\u5247\u3054\u3068\u306b\u6700\u4f4e12AWG\u306eEGC\u304c\u5fc5\u8981\uff09\u3001\u30e1\u30a4\u30f3\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u51fa\u529b\u4fdd\u8b77\u3067\u306f\u306a\u304f\u30b9\u30c8\u30ea\u30f3\u30b0\u30d2\u30e5\u30fc\u30ba\u5b9a\u683c\u306b\u57fa\u3065\u3044\u3066EGC\u3092\u9078\u629e\u3001\u8868\u306e\u8981\u4ef6\u306b\u5f93\u3063\u3066\u30a2\u30eb\u30df\u30cb\u30a6\u30e0EGC\u306e\u30b5\u30a4\u30ba\u3092\u30a2\u30c3\u30d7\u3057\u306a\u304b\u3063\u305f\u3002.<\/p>\n\n\n\n<p><strong>\u8a02\u6b63<\/strong>:\u56de\u8def\u3092\u4fdd\u8b77\u3059\u308b\u6700\u5927\u306e\u904e\u96fb\u6d41\u30c7\u30d0\u30a4\u30b9\u306b\u57fa\u3065\u304d\u3001NEC \u8868 250.122 \u306b\u5f93\u3063\u3066 EGC \u306e\u30b5\u30a4\u30ba\u3092\u6c7a\u5b9a\u3059\u308b\u300230A \u30b9\u30c8\u30ea\u30f3\u30b0\u4fdd\u8b77\u306e\u5834\u5408\u3001\u6700\u5c0f 10AWG \u9285\u88fd EGC\u300260A \u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u51fa\u529b\u4fdd\u8b77\u306e\u5834\u5408\u3001\u6700\u5c0f 10AWG \u9285\u88fd\u3002\u3088\u308a\u826f\u3044\u6545\u969c\u96fb\u6d41\u7d4c\u8def\u304a\u3088\u3073\u6a5f\u68b0\u7684\u5f37\u5ea6\u3092\u63d0\u4f9b\u3059\u308b\u56de\u8def\u5c0e\u4f53\u30b2\u30fc\u30b8\u306b\u5408\u308f\u305b\u3066\u3001EGC \u306e\u30b5\u30a4\u30ba\u30a2\u30c3\u30d7\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u274c 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\u4e0d\u9069\u5207\u306a\u6975\u6027\u5206\u96e2<\/h3>\n\n\n\n<p><strong>\u554f\u984c\u70b9<\/strong>:\u30d7\u30e9\u30b9\u3068\u30de\u30a4\u30ca\u30b9\u306e\u5c0e\u4f53\u3092\u5225\u3005\u306e\u7ba1\u8def\u306b\u914d\u7dda\u3057\u305f\u308a\u3001\u76f4\u6d41\u5c0e\u4f53\u3092\u4ea4\u6d41\u5c0e\u4f53\u3068\u4e00\u7dd2\u306b\u914d\u7dda\u3059\u308b\u3068\u3001\u96fb\u78c1\u7d50\u5408\u304c\u767a\u751f\u3057\u3001\u5faa\u74b0\u96fb\u6d41\u304c\u767a\u751f\u3057\u3001\u30b7\u30b9\u30c6\u30e0\u640d\u5931\u304c\u5897\u52a0\u3059\u308b\u3002AC-DC\u5c0e\u4f53\u306e\u6df7\u5408\u306f\u3001NEC690.31(B)\u306e\u5206\u96e2\u8981\u4ef6\u306b\u9055\u53cd\u3059\u308b\u3002.<\/p>\n\n\n\n<p><strong>\u3088\u304f\u3042\u308b\u30b7\u30ca\u30ea\u30aa<\/strong>:\u76f4\u6d41\u30d7\u30e9\u30b9\u5c0e\u4f53\u30921\u672c\u306e\u96fb\u7dda\u7ba1\u306b\u3001\u76f4\u6d41\u30de\u30a4\u30ca\u30b9\u5c0e\u4f53\u3092\u5225\u306e\u4e26\u5217\u96fb\u7dda\u7ba1\u306b\u300c\u6574\u7406\u3059\u308b\u305f\u3081\u300d\u306b\u8a2d\u7f6e\u3057\u3001\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u51fa\u529b\u306e\u76f4\u6d41\u5c0e\u4f53\u3068AC\u4f9b\u7d66\u914d\u7dda\u3092\u5171\u901a\u306e\u30b8\u30e3\u30f3\u30af\u30b7\u30e7\u30f3\u30dc\u30c3\u30af\u30b9\u3067\u6df7\u5408\u3057\u3001EGC\u3092\u56de\u8def\u5c0e\u4f53\u304b\u3089\u5206\u96e2\u3059\u308b\u3002.<\/p>\n\n\n\n<p><strong>\u8a02\u6b63<\/strong>:NEC 690.31(B)\u306b\u5f93\u3063\u3066\u3001\u5404\u56de\u8def\u306e\u30d7\u30e9\u30b9\u3068\u30de\u30a4\u30ca\u30b9\u306e\u5c0e\u4f53\u3092\u540c\u3058\u914d\u7dda\u7ba1\u306b\u8a2d\u7f6e\u3059\u308b\u3002EGC\u3092\u95a2\u9023\u3059\u308b\u56de\u8def\u5c0e\u4f53\u3068\u4e00\u7dd2\u306b\u914d\u7dda\u3059\u308b\u3002\u305d\u306e\u3088\u3046\u306a\u8a2d\u7f6e\u306e\u305f\u3081\u306b\u7279\u5225\u306b\u5b9a\u683c\u3055\u308c\u3066\u3044\u306a\u3044\u9650\u308a\u3001\u540c\u3058\u914d\u7dda\u7ba1\u306bAC\u3068DC\u306e\u5c0e\u4f53\u3092\u6df7\u5728\u3055\u305b\u306a\u3044\u3053\u3068\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u96fb\u78c1\u30d0\u30e9\u30f3\u30b9\u304c\u7dad\u6301\u3055\u308c\u3001\u898f\u683c\u306e\u5206\u96e2\u8981\u4ef6\u306b\u9069\u5408\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e0d\u5341\u5206\u306a\u30b9\u30c8\u30ec\u30a4\u30f3\u30fb\u30ea\u30ea\u30fc\u30d5<\/h3>\n\n\n\n<p><strong>\u554f\u984c\u70b9<\/strong>:\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306e\u5165\u53e3\u3067\u9069\u5207\u306a\u5c0e\u4f53\u30b9\u30c8\u30ec\u30a4\u30f3\u30ea\u30ea\u30fc\u30d5\u3092\u63d0\u4f9b\u3057\u306a\u3044\u3068\u3001\u6a5f\u68b0\u7684\u30b9\u30c8\u30ec\u30b9\u304c\u7aef\u5b50\u63a5\u7d9a\u306b\u4f1d\u308f\u308a\u307e\u3059\u3002\u71b1\u30b5\u30a4\u30af\u30eb\u3068\u632f\u52d5\u306f\u63a5\u7d9a\u306e\u7de9\u307f\u3092\u5f15\u304d\u8d77\u3053\u3057\u3001\u904e\u71b1\u3057\u3066\u6545\u969c\u3059\u308b\u9ad8\u62b5\u6297\u30b8\u30e7\u30a4\u30f3\u30c8\u3092\u4f5c\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u3088\u304f\u3042\u308b\u30b7\u30ca\u30ea\u30aa<\/strong>:\u30b1\u30fc\u30d6\u30eb\u30b0\u30e9\u30f3\u30c9\u3084\u30d6\u30c3\u30b7\u30f3\u30b0\u3092\u4f7f\u7528\u305b\u305a\u306b\u5c0e\u4f53\u3092\u30ce\u30c3\u30af\u30a2\u30a6\u30c8\u306b\u901a\u3059\u3001\u30b1\u30fc\u30d6\u30eb\u30b0\u30e9\u30f3\u30c9\u3092\u7de0\u3081\u3059\u304e\u3066\u5c0e\u4f53\u306e\u7d76\u7e01\u4f53\u3092\u62bc\u3057\u3064\u3076\u3059\u3001\u5c0e\u4f53\u306e\u52d5\u304d\u3092\u8a31\u3059\u30b9\u30c8\u30ec\u30a4\u30f3\u30ea\u30ea\u30fc\u30d5\u3068\u3057\u3066\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u88fd\u30b1\u30fc\u30d6\u30eb\u30bf\u30a4\u3092\u4f7f\u7528\u3059\u308b\u3001\u7b50\u4f53\u5185\u306e\u30b5\u30fc\u30d3\u30b9\u30eb\u30fc\u30d7\u304c\u4e0d\u5341\u5206\u3067\u7aef\u5b50\u306b\u5f35\u529b\u304c\u304b\u304b\u308b\u3002.<\/p>\n\n\n\n<p><strong>\u8a02\u6b63<\/strong>:\u3059\u3079\u3066\u306e\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u8cab\u901a\u90e8\u306b\u306f\u3001\u30ea\u30b9\u30c8\u3055\u308c\u305f\u30b1\u30fc\u30d6\u30eb\u30b0\u30e9\u30f3\u30c9\u3001\u30b3\u30fc\u30c9\u30b0\u30ea\u30c3\u30d7\u3001\u307e\u305f\u306f\u30b9\u30c8\u30ec\u30a4\u30f3\u30ea\u30ea\u30fc\u30d5\u30b3\u30cd\u30af\u30bf\u3092\u53d6\u308a\u4ed8\u3051\u3066\u304f\u3060\u3055\u3044\u3002\u88ab\u8986\u306e\u7d76\u7e01\u3092\u62bc\u3057\u3064\u3076\u3059\u3053\u3068\u306a\u304f\u5c0e\u4f53\u3092\u56fa\u5b9a\u3059\u308b\u305f\u3081\u3001\u30b0\u30e9\u30f3\u30c9\u306e\u5727\u7e2e\u3092\u8abf\u6574\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u901a\u5e38\u3001\u88ab\u8986\u306e\u76f4\u5f84\u306e60\u301c70%\u306e\u5727\u7e2e\u304c\u5fc5\u8981\u3067\u3059\u3002\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u5185\u90e8\u306b\u6700\u4f4e150mm\u306e\u30b5\u30fc\u30d3\u30b9\u30eb\u30fc\u30d7\u3092\u8a2d\u3051\u3001\u5c0e\u7dda\u3092\u53d6\u308a\u5916\u3059\u3053\u3068\u306a\u304f\u7aef\u5b50\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3002\u8a2d\u7f6e\u3055\u308c\u305f\u30b9\u30c8\u30ec\u30a4\u30f3\u30ea\u30ea\u30fc\u30d5\u304c\u3001\u88fd\u9020\u696d\u8005\u306e\u4ed5\u69d8\u306b\u5f93\u3063\u3066\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u306eNEMA\/IP\u5b9a\u683c\u3092\u7dad\u6301\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u26a0\ufe0f <strong>\u30af\u30ea\u30c6\u30a3\u30ab\u30eb\u30fb\u30a8\u30e9\u30fc<\/strong>:\u3053\u308c\u306f\u5730\u7d61\u96fb\u6d41\u7d4c\u8def\u3092\u4f5c\u308a\u3001\u5730\u7d61\u691c\u51fa\u3092\u59a8\u5bb3\u3057\u3001\u30a4\u30f3\u30d0\u30fc\u30bf\u306e\u7d76\u7e01\u3092\u640d\u50b7\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">PV\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306e\u30b9\u30c8\u30ea\u30f3\u30b0\u5165\u529b\u3068\u30e1\u30a4\u30f3\u51fa\u529b\u306b\u5fc5\u8981\u306a\u5c0e\u4f53\u30b5\u30a4\u30ba\u3092\u6559\u3048\u3066\u304f\u3060\u3055\u3044\u3002<\/h3>\n\n\n\n<p>\u30b9\u30c8\u30ea\u30f3\u30b0\u5165\u529b\u5c0e\u4f53\u306e\u30b5\u30a4\u30ba\u6c7a\u5b9a\u306b\u306f\u3001NEC690.8(B)(1)\u306b\u5f93\u3063\u3066\u3001I_string = \u30e2\u30b8\u30e5\u30fc\u30eb I_sc \u00d7 1.56 \u306e\u6700\u5927\u30b9\u30c8\u30ea\u30f3\u30b0\u96fb\u6d41\u3092\u8a08\u7b97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u77ed\u7d61\u96fb\u6d41\u304c 12A \u306e\u6a19\u6e96\u7684\u306a\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u5834\u5408\u3001\u5fc5\u8981\u306a\u5c0e\u4f53\u306e\u8010\u91cf = \u6e29\u5ea6\u30c7\u30a3\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u524d\u306e 18.72A \u3067\u3059\u300290\u2103\u7d76\u7e01(THWN-2)\u3067\u5468\u56f240\u2103\u306e\u5834\u5408\u300120.6A\u306e\u5c0e\u4f53\u5bb9\u91cf\u3092\u5fc5\u8981\u3068\u3059\u308b0.91\u306e\u88dc\u6b63\u4fc2\u6570\u3092\u9069\u7528\u3059\u308b\u3002\u30e1\u30a4\u30f3\u51fa\u529b\u5c0e\u4f53\u306f\u3001\u3059\u3079\u3066\u306e\u30b9\u30c8\u30ea\u30f3\u30b0\u304b\u3089\u306e\u8907\u5408\u96fb\u6d41\u3092\u51e6\u7406\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\uff1aI_output = N_strings \u00d7 I_string \u00d7 1.25 \u5b89\u5168\u4fc2\u6570\u30028\u30b9\u30c8\u30ea\u30f3\u30b0\u30b3\u30f3\u30d0\u30a4\u30ca\u306e\u5834\u5408\u3001\u5fc5\u8981\u306a\u96fb\u6d41\u5bb9\u91cf = 8 \u00d7 18.72A \u00d7 1.25 = 187.2A\u3001\u6700\u4f4e205.7A\u3092\u5fc5\u8981\u3068\u3059\u308b\u6e29\u5ea6\u88dc\u6b63\u4ed8\u304d-4\/0 AWG\u9285\uff08260A\u5b9a\u683c\uff09\u306f\u3053\u306e\u4ed5\u69d8\u3092\u6e80\u305f\u3059\u3002V_drop = 2 \u00d7 I \u00d7 L \u00d7 R \u306e\u5f0f\u3092\u4f7f\u7528\u3057\u3066\u3001\u96fb\u5727\u964d\u4e0b\u304c 3% \u672a\u6e80\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002\u6a5f\u5668\u63a5\u5730\u5c0e\u4f53\u306e\u30b5\u30a4\u30ba\u306f\u3001\u904e\u96fb\u6d41\u30c7\u30d0\u30a4\u30b9\u306e\u5b9a\u683c\u306b\u57fa\u3065\u304f NEC \u8868 250.122 \u306b\u5f93\u3046\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">PV\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u3092NEC\u8981\u4ef6\u306b\u5f93\u3063\u3066\u9069\u5207\u306b\u63a5\u5730\u30fb\u63a5\u7740\u3059\u308b\u306b\u306f\uff1f<\/h3>\n\n\n\n<p>\u9069\u5207\u306a\u63a5\u5730\u3068\u7d50\u5408\u306b\u306f\u3001\u5225\u3005\u306e\u6a5f\u80fd\u3092\u6301\u30643\u3064\u306e\u7570\u306a\u308b\u5c0e\u4f53\u30b7\u30b9\u30c6\u30e0\u304c\u5fc5\u8981\u3067\u3042\u308b\u3002\u6a5f\u5668\u63a5\u5730\u5c0e\u7dda\uff08EGC\uff09\u306f\u3001NEC\u8868250.122\u306b\u5f93\u3063\u3066\u30b5\u30a4\u30ba\u6c7a\u3081\u3055\u308c\u3001\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u306e\u7b50\u4f53\u3068\u30a4\u30f3\u30d0\u30fc\u30bf\u306e\u30b7\u30b9\u30c6\u30e0\u63a5\u5730\u30dd\u30a4\u30f3\u30c8\u3092\u63a5\u7d9a\u3059\u308b\u3002\u3053\u308c\u306f\u3001\u904e\u96fb\u6d41\u4fdd\u8b77\u52d5\u4f5c\u3092\u53ef\u80fd\u306b\u3059\u308b\u6545\u969c\u96fb\u6d41\u30ea\u30bf\u30fc\u30f3\u7d4c\u8def\u3092\u63d0\u4f9b\u3059\u308b\u3002NEC 250.102(C)\u306b\u5f93\u3063\u305f\u30b5\u30a4\u30ba\u306e\u4e3b\u63a5\u5408\u30b8\u30e3\u30f3\u30d1\u306f\u3001\u5185\u90e8\u63a5\u5730\u30d0\u30b9\u30d0\u30fc\u3092\u30b3\u30f3\u30d0\u30a4\u30ca\u7b50\u4f53\u306b\u63a5\u7d9a\u3057\u3001\u3059\u3079\u3066\u306e\u91d1\u5c5e\u90e8\u54c1\u306e\u7b49\u96fb\u4f4d\u63a5\u5408\u3092\u78ba\u7acb\u3059\u308b\u3002NEC \u8868 250.166 \u306b\u5f93\u3063\u305f\u30b5\u30a4\u30ba\u306e\u63a5\u5730\u96fb\u6975\u5c0e\u4f53\uff08GEC\uff09\u306f\u3001\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u3092\u88dc\u52a9\u63a5\u5730\u96fb\u6975\u30b7\u30b9 \u30c6\u30e0\uff08\u63a5\u5730\u68d2\uff09\u306b\u63a5\u7d9a\u3059\u308b\u3002\u30a2\u30ec\u30a4\u30d5\u30ec\u30fc\u30e0\u63a5\u5730\u5c0e\u4f53\uff086-10 AWG \u88f8\u9285\uff09\u306f\u3001\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u63a5\u5730\u30d0\u30b9\u30d0\u30fc\u306b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3055\u308c\u305f\u30e2 \u30b8\u30e5\u30fc\u30eb\u30d5\u30ec\u30fc\u30e0\u63a5\u5730\u3092\u96c6\u3081\u308b\u3002\u3059\u3079\u3066\u306e\u63a5\u7d9a\u306b\u306f\u3001\u9069\u5207\u306a\u30c8\u30eb\u30af\u4ed5\u69d8\u306e\u30ea\u30b9\u30c8\u3055\u308c\u305f\u5727\u7e2e\u30b3\u30cd\u30af\u30bf\u307e\u305f\u306f\u767a\u71b1\u6eb6\u63a5\u304c\u5fc5\u8981\u3067\u3059\u3002\u6700\u7d42\u7684\u306a\u53d6\u4ed8\u3051\u3067\u306f\u3001DC\u5c0e\u4f53\u304b\u3089\u63a5\u5730\u307e\u3067\u306e\u7d76\u7e01\u62b5\u6297\u304c100k\u03a9\u4ee5\u4e0a\u7dad\u6301\u3055\u308c\u3001\u5730\u7d61\u691c\u51fa\u6a5f\u80fd\u304c\u7dad\u6301\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u6a5f\u5668\u63a5\u5730\u5c0e\u4f53\u3068\u63a5\u5730\u96fb\u6975\u5c0e\u4f53\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p>\u6a5f\u5668\u63a5\u5730\u5c0e\u4f53\uff08EGC\uff09\u3068\u63a5\u5730\u96fb\u6975\u5c0e\u4f53\uff08GEC\uff09\u306f\u3001\u7570\u306a\u308b\u8a2d\u7f6e\u65b9\u6cd5\u3092\u5fc5\u8981\u3068\u3059\u308b\u57fa\u672c\u7684\u306b\u7570\u306a\u308b\u6a5f\u80fd\u3092\u679c\u305f\u3057\u307e\u3059\u3002NEC 250.122 \u306b\u5f93\u3063\u305f\u30b5\u30a4\u30ba\u306e EGC \u306f\u3001\u6a5f\u5668\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u304b\u3089\u30b7\u30b9\u30c6\u30e0\u30bd\u30fc\u30b9\u306b\u623b\u308b\u610f\u56f3\u7684\u306a\u6545\u969c\u96fb\u6d41\u7d4c\u8def\u3092\u63d0\u4f9b\u3057\u3001\u904e\u96fb\u6d41\u4fdd\u8b77\u88c5\u7f6e\u304c\u6545\u969c\u3092\u8fc5\u901f\u306b\u9664\u53bb\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3002EGC \u306f\u3001\u4f4e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306e\u7d4c\u8def\u3092\u7dad\u6301\u3059\u308b\u56de\u8def\u5c0e\u4f53\uff08\u4f4f\u5b85\u7528\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u4e00\u822c\u7684\u306a\u30b5\u30a4\u30ba 10 AWG \u306e\u9285\u88fd\uff09\u3068\u5171\u306b\u5b9f\u884c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u5c0e\u4f53\u306f\u3001\u5341\u5206\u306a\u96fb\u6d41\u5bb9\u91cf\u304c\u5fc5\u8981\u306a\u5730\u7d61\u306e\u969b\u306b\u3001\u6f5c\u5728\u7684\u306b\u9ad8\u3044\u6545\u969c\u96fb\u6d41\uff08100\u30a2\u30f3\u30da\u30a2\u4ee5\u4e0a\uff09\u3092\u6d41\u3059\u3002NEC \u8868 250.166 \u306b\u5f93\u3063\u305f\u30b5\u30a4\u30ba\u306e\u63a5\u5730\u96fb\u6975\u5c0e\u4f53\u306f\u3001\u99c6\u52d5\u3055\u308c\u305f\u63a5\u5730\u68d2\u307e\u305f\u306f\u4ed6\u306e\u96fb\u6975\u3092\u901a\u3057\u3066\u6a5f\u5668\u3092\u5927\u5730\u30a2\u30fc\u30b9\u306b\u63a5\u7d9a\u3057\u3001\u96f7\u30b5\u30fc\u30b8\u6d88\u6563\u7d4c\u8def\u3068\u96fb\u5727\u57fa\u6e96\u3092\u63d0\u4f9b\u3059\u308b\u3002GEC \u306f\u3001\u56de\u8def\u5c0e\u4f53\u304b\u3089\u72ec\u7acb\u3057\u3001\u6700\u5c0f\u30b5\u30a4\u30ba 6 AWG \u9285\u306e\u63a5\u5730\u96fb\u6975\u306b\u63a5\u7d9a\u3059\u308b\u3002\u3053\u306e\u5c0e\u4f53\u306f\u901a\u5e38\u96fb\u6d41\u306f\u6700\u4f4e\u9650\u3057\u304b\u6d41\u3055\u306a\u3044\u304c\u3001\u96f7\u30b5\u30fc\u30b8\u30a8\u30cd\u30eb\u30ae\u30fc\u306b\u306f\u8010\u3048\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002\u91cd\u8981\u306a\u9055\u3044\uff1aEGC\u306f\u96fb\u6d41\u7d4c\u8def\u3092\u901a\u3058\u3066\u4fdd\u8b77\u88c5\u7f6e\u306e\u52d5\u4f5c\u3092\u53ef\u80fd\u306b\u3057\u3001GEC\u306f\u63a5\u5730\u96fb\u4f4d\u57fa\u6e96\u304a\u3088\u3073\u96f7\u4fdd\u8b77\u3092\u78ba\u7acb\u3057\u307e\u3059\u3002NEC 690.43\u304a\u3088\u3073690.47\u306b\u6e96\u62e0\u3057\u305fPV\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306e\u8a2d\u7f6e\u306b\u306f\u3001\u4e21\u65b9\u306e\u5c0e\u4f53\u304c\u5fc5\u8981\u3067\u3042\u308b\u3002.<\/p>\n\n\n\n<h3 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690.31(B)\u306f\u3001\u5404\u592a\u967d\u5149\u767a\u96fb\u51fa\u529b\u56de\u8def\u306e\u56de\u8def\u5c0e\u4f53\u304c\u540c\u3058\u914d\u7dda\u8def\u3092\u5360\u6709\u3059\u308b\u3053\u3068\u3092\u660e\u78ba\u306b\u8981\u6c42\u3057\u3066\u3044\u308b\u3002\u9069\u5207\u306a\u8a2d\u7f6e\u3067\u306f\u3001\u6b63\u6975\u3001\u8ca0\u6975\u3001\u6a5f\u5668\u63a5\u5730\u5c0e\u4f53\u30921\u672c\u306e\u96fb\u7dda\u7ba1\u3092\u901a\u3057\u3066\u4e00\u7dd2\u306b\u914d\u7dda\u3059\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u5bfe\u5411\u3059\u308b\u76f4\u6d41\u96fb\u6d41\u304c\u6253\u3061\u6d88\u3057\u5408\u3046\u78c1\u754c\u3092\u4f5c\u308a\u3001\u96fb\u78c1\u30d0\u30e9\u30f3\u30b9\u304c\u4fdd\u305f\u308c\u308b\u3002\u552f\u4e00\u306e\u4f8b\u5916\uff1a\u4e00\u90e8\u306e\u5927\u898f\u6a21\u306a\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30b9\u30b1\u30fc\u30eb\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001DC+\u3068DC-\u30d0\u30b9\u30d0\u30fc\u3092\u5225\u3005\u306e\u914d\u7dda\u7ba1\u3067\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u8a98\u5c0e\u52b9\u679c\u304c\u8a31\u5bb9\u7bc4\u56f2\u5185\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u5206\u6790\u304c\u5fc5\u8981\u3067\u3059\u3002\u6a19\u6e96\u7684\u306a\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u3092\u8a2d\u7f6e\u3059\u308b\u5834\u5408\u306f\u3001\u96fb\u6c17\u7684\u304a\u3088\u3073\u96fb\u78c1\u7684\u306a\u6574\u5408\u6027\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u3001\u5e38\u306b\u898f\u683c\u8981\u4ef6\u306b\u5f93\u3063\u3066\u56de\u8def\u5c0e\u4f53\u3092\u307e\u3068\u3081\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<h3 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200.6\u306b\u5f93\u3063\u3066\u767d\u307e\u305f\u306f\u7070\u8272\u3092\u4f7f\u7528\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u304c\u3001\u63a5\u5730\u3055\u308c\u3066\u3044\u306a\u3044\u5c0e\u4f53\uff08DC+\uff09\u306f\u3001\u767d\u3001\u7070\u8272\u3001\u7dd1\u4ee5\u5916\u306e\u8272\u3092\u4f7f\u7528\u3059\u308b\u3002\u6a5f\u5668\u63a5\u5730\u5c0e\u4f53\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u63a5\u5730\u306e\u7a2e\u985e\u306b\u95a2\u4fc2\u306a\u304f\u3001\u5e38\u306b\u88f8\u9285\u3001\u7dd1\u3001\u307e\u305f\u306f\u7dd1\u9ec4\u3092\u4f7f\u7528\u3059\u308b\u3002\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u306e\u7b50\u4f53\u5185\u90e8\u306b\u63b2\u793a\u3055\u308c\u3066\u3044\u308b\u914d\u7dda\u56f3\u306b\u3001\u8272\u5206\u3051\u65b9\u5f0f\u3092\u6587\u66f8\u5316\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u8a2d\u7f6e\u306e\u969b\u306b\u306f\u3001\u30a4\u30f3\u30d0\u30fc\u30bf\u306e\u5165\u529b\u6bb5\u306b\u640d\u50b7\u3092\u4e0e\u3048\u308b\u6975\u6027\u53cd\u8ee2\u3092\u9632\u3050\u305f\u3081\u3001\u3059\u3079\u3066\u306e\u6280\u8853\u8005\u304c\u8272\u5206\u3051\u3092\u7406\u89e3\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u8a2d\u7f6e\u5168\u4f53\u306e\u4e00\u8cab\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u3001\u5de5\u5834\u3067\u8272\u5206\u3051\u3055\u308c\u305f\u7d42\u7aef\u6e08\u307f\u306e\u30b1\u30fc\u30d6\u30eb\u30a2\u30bb\u30f3\u30d6\u30ea\u306e\u4f7f\u7528\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">PV\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u88dc\u52a9\u63a5\u5730\u7528\u306e\u63a5\u5730\u96fb\u6975\u5c0e\u4f53\u306e\u30b5\u30a4\u30ba\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u304b\uff1f<\/h3>\n\n\n\n<p>\u88dc\u52a9\u7684\u306aPV\u30b7\u30b9\u30c6\u30e0\u63a5\u5730\u7528\u306e\u63a5\u5730\u96fb\u6975\u5c0e\u4f53\uff08GEC\uff09\u306e\u30b5\u30a4\u30ba\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u306b\u4f9b\u7d66\u3059\u308b\u6700\u5927\u306e\u5c0e\u4f53\u3092\u57fa\u6e96\u3068\u3057\u3066NEC\u8868250.166\u306b\u5f93\u3046\u3002\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306e\u4e3b\u51fa\u529b\u5c0e\u4f53\u30b5\u30a4\u30ba\u3092\u6c7a\u5b9a\u3059\u308b\uff08\u4f8b\uff1a\u51fa\u529b\u96fb\u6d41150\uff5e200A\u306e\u30b7\u30b9\u30c6\u30e0\u306b\u306f\u92851\/0 AWG\uff09\u3002\u8868250.166\u3092\u53c2\u7167\u3057\u3001\u5bfe\u5fdc\u3059\u308b\u5c0e\u4f53\u30b5\u30a4\u30ba\u306eGEC\u8981\u4ef6\u3092\u898b\u3064\u3051\u308b-1\/0 AWG\u4f9b\u7d66\u5c0e\u4f53\u306b\u306f\u3001\u6700\u5c0f6 AWG\u9285\u307e\u305f\u306f4 AWG\u30a2\u30eb\u30df\u30cb\u30a6\u30e0GEC\u304c\u5fc5\u8981\u3002\u3053\u308c\u306f\u898f\u5b9a\u306b\u3088\u308b\u7d76\u5bfe\u6700\u5c0f\u5024\u3067\u3059\u3002\u4f4e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306e\u30b5\u30fc\u30b8\u653e\u6563\u7d4c\u8def\u3092\u63d0\u4f9b\u3059\u308b\u9ad8\u96fb\u6d41\u96f7\u5730\u57df\u306e\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001GEC\u30924 AWG\u9285\u306b\u30b5\u30a4\u30ba\u30a2\u30c3\u30d7\u3059\u308b\u3053\u3068\u3092\u691c\u8a0e\u3059\u308b\u3053\u3068\u3002\u8868 250.166 \u306b\u3088\u308b\u6700\u5927 GEC \u30b5\u30a4\u30ba = \u4f9b\u7d66\u5c0e\u4f53\u30b5\u30a4\u30ba\u306b\u95a2\u4fc2\u306a\u304f 3\/0 AWG \u9285\uff084\/0 AWG \u4ee5\u4e0a\u306e\u51fa\u529b\u5c0e\u4f53\u3092\u6301\u3064\u30b7\u30b9\u30c6\u30e0\u3067\u3082\uff09\u3002GEC \u306f\u3001\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306e\u63a5\u5730\u30d0\u30b9\u30d0\u30fc\u304b\u3089\u63a5\u5730\u96fb\u6975\u307e\u3067\u3001\u30b9\u30d7\u30e9\u30a4\u30b9\u306a\u3057\u3067\u9023\u7d9a\u7684\u306b\u53d6\u308a\u4ed8\u3051\u3089\u308c\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002NEC 250.64(B)\u306b\u5f93\u3044\u3001\u6a5f\u68b0\u7684\u306a\u640d\u50b7\u3092\u53d7\u3051\u308b\u5834\u6240\u3067\u306f\u3001\u96fb\u7dda\u7ba1\u307e\u305f\u306f\u914d\u7dda\u7ba1\u3092\u4f7f\u7528\u3057\u3066\u9732\u51fa\u3057\u305f GEC \u3092\u7269\u7406\u7684\u306a\u640d\u50b7\u304b\u3089\u4fdd\u8b77\u3059\u308b\u3002\u6a5f\u68b0\u7684\u63a5\u7d9a\u306f\u3001NEC 250.68(A)\u306b\u5f93\u3063\u305f\u8a66\u9a13\u306e\u305f\u3081\u306b\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002\u8907\u6570\u306e\u63a5\u5730\u96fb\u6975\u3092\u6301\u3064\u30b7\u30b9\u30c6\u30e0\u306e\u5834\u5408\u3001NEC250.50\u306b\u5f93\u3063\u3066\u3059\u3079\u3066\u306e\u96fb\u6975\u304c\u7d50\u5408\u3055\u308c\u3001\u5358\u4e00\u63a5\u5730\u96fb\u6975\u30b7\u30b9\u30c6\u30e0\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7d50\u8ad6<\/h2>\n\n\n\n<p>\u592a\u967d\u5149\u767a\u96fb\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u306e\u914d\u7dda\u56f3\u3092\u9069\u5207\u306b\u5b9f\u88c5\u3059\u308b\u306b\u306f\u3001\u30b9\u30c8\u30ea\u30f3\u30b0\u63a5\u7d9a\u30c8\u30dd\u30ed\u30b8\u30fc\u3001\u63a5\u5730\u30b7\u30b9\u30c6\u30e0\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3001\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u8981\u4ef6\u3001\u5c0e\u4f53\u30b5\u30a4\u30b8\u30f3\u30b0\u65b9\u6cd5\u3001\u304a\u3088\u3073\u8a2d\u7f6e\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306b\u4f53\u7cfb\u7684\u306a\u6ce8\u610f\u3092\u6255\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u6280\u8853\u7684\u8981\u7d20\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u5b89\u5168\u3067\u4fe1\u983c\u6027\u304c\u9ad8\u304f\u3001\u6cd5\u4ee4\u306b\u6e96\u62e0\u3057\u305f\u8a2d\u7f6e\u304c\u4fdd\u8a3c\u3055\u308c\u3001\u9577\u671f\u7684\u306a\u6027\u80fd\u3092\u767a\u63ee\u3059\u308b\u3068\u540c\u6642\u306b\u3001\u5c06\u6765\u306e\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3084\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8<\/strong><\/p>\n\n\n\n<p>1. <strong>\u6587\u5b57\u5217\u63a5\u7d9a\u30c8\u30dd\u30ed\u30b8\u30fc<\/strong> \u6975\u6027\u306e\u4e00\u8cab\u6027\u3092\u7dad\u6301\u3057\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306e\u305f\u3081\u306b\u30b9\u30c8\u30ea\u30f3\u30b0\u3092\u9078\u629e\u7684\u306b\u5206\u96e2\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n\n\n\n<p>2. <strong>\u63a5\u5730\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3<\/strong> \u6545\u969c\u96fb\u6d41\u7d4c\u8def\u306e\u305f\u3081\u306e\u6a5f\u5668\u63a5\u5730\u5c0e\u4f53\u3001\u30a2\u30fc\u30b9\u63a5\u7d9a\u306e\u305f\u3081\u306e\u63a5\u5730\u96fb\u6975\u5c0e\u4f53\u3001\u7b49\u96fb\u4f4d\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u306e\u305f\u3081\u306e\u30dc\u30f3\u30c7\u30a3\u30f3\u30b0\u30b8\u30e3\u30f3\u30d1\u30fc\u306a\u3069\u3001\u7570\u306a\u308b\u5c0e\u4f53\u30b7\u30b9\u30c6\u30e0\u3092\u5b9f\u88c5\u3057\u3066\u3044\u308b\u3002.<\/p>\n\n\n\n<p>3. <strong>\u5c0e\u4f53\u30b5\u30a4\u30ba<\/strong> \u306b\u306f\u3001\u30b9\u30c8\u30ea\u30f3\u30b0\u306e\u6700\u5927\u96fb\u6d41\uff08I_sc \u00d7 1.56\uff09\u3092\u8a08\u7b97\u3057\u3001\u6e29\u5ea6\u8efd\u6e1b\u4fc2\u6570\u3092\u9069\u7528\u3057\u3001\u96fb\u5727\u964d\u4e0b\u304c NEC 690.7(D)\u306e\u8a31\u5bb9\u7bc4\u56f2\u5185\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002.<\/p>\n\n\n\n<p>4. <strong>\u4fdd\u8a3c\u8981\u4ef6<\/strong> NEC 250.102(C)\u306b\u5f93\u3044\u3001\u9069\u5207\u306a\u30c8\u30eb\u30af\u3067\u7de0\u3081\u4ed8\u3051\u3089\u308c\u305f\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3068\u9069\u5207\u306a\u5c0e\u4f53\u30b5\u30a4\u30ba\u3092\u4f7f\u7528\u3057\u3066\u3001\u30a8\u30f3\u30af\u30ed\u30fc\u30b8\u30e3\u3001\u30d0\u30b9\u30d0\u30fc\u3001\u304a\u3088\u3073\u63a5\u5730\u30b7\u30b9\u30c6\u30e0\u9593\u306e\u4f4e\u62b5\u6297\u63a5\u7d9a\u3092\u7fa9\u52d9\u4ed8\u3051\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<p>5. <strong>\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u691c\u8a3c<\/strong> \u7d76\u7e01\u62b5\u6297\u8a66\u9a13\u3001\u63a5\u5730\u62b5\u6297\u6e2c\u5b9a\u3001\u6975\u6027\u78ba\u8a8d\u3001\u30c8\u30eb\u30af\u6587\u66f8\u5316\u306b\u3088\u308a\u3001\u901a\u96fb\u524d\u306e\u30b7\u30b9\u30c6\u30e0\u306e\u5b8c\u5168\u6027\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u95a2\u9023\u30ea\u30bd\u30fc\u30b9<\/strong><br>- <a href=\"https:\/\/sinobreaker.com\/ja\/%e3%82%b3%e3%83%b3%e3%83%90%e3%82%a4%e3%83%8a%e3%83%bc%e3%83%9c%e3%83%83%e3%82%af%e3%82%b9\/\">PV\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u9078\u629e\u30ac\u30a4\u30c9<\/a><br>- <a href=\"https:\/\/sinobreaker.com\/ja\/%e7%9b%b4%e6%b5%81%e3%83%92%e3%83%a5%e3%83%bc%e3%82%ba\/\">DC\u30d2\u30e5\u30fc\u30ba\u306e\u4ed5\u69d8\u3068\u5b9a\u683c<\/a><br>- <a href=\"https:\/\/sinobreaker.com\/ja\/%e7%9b%b4%e6%b5%81%e9%81%ae%e6%96%ad%e5%99%a8\/\">DC\u30b5\u30fc\u30ad\u30c3\u30c8\u30d6\u30ec\u30fc\u30ab\u30fc\u306e\u7d71\u5408<\/a><\/p>\n\n\n\n<p><strong>PV\u30b3\u30f3\u30d0\u30a4\u30ca\u30fc\u30dc\u30c3\u30af\u30b9\u914d\u7dda\u306e\u5c0e\u5165\u6e96\u5099\u306f\u304a\u6e08\u307f\u3067\u3059\u304b\uff1f<\/strong> \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u56fa\u6709\u306e\u914d\u7dda\u56f3\u3001\u5c0e\u4f53\u306e\u30b5\u30a4\u30ba\u8a08\u7b97\u3001\u63a5\u5730\u30b7\u30b9\u30c6\u30e0\u306e\u8a2d\u8a08\u652f\u63f4\u306b\u3064\u3044\u3066\u306f\u3001SYNODE\u306e\u6280\u8853\u30c1\u30fc\u30e0\u306b\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u3002SYNODE\u306f\u3001\u4e16\u754c\u4e2d\u306e\u4f4f\u5b85\u3001\u5546\u696d\u65bd\u8a2d\u3001\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30b9\u30b1\u30fc\u30eb\u306e\u592a\u967d\u5149\u767a\u96fb\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u3001\u8a73\u7d30\u306a\u8a2d\u7f6e\u6587\u66f8\u3001NEC\u6e96\u62e0\u306e\u691c\u8a3c\u3001\u9069\u5207\u306a\u914d\u7dda\u306e\u5b9f\u65bd\u3092\u4fdd\u8a3c\u3059\u308b\u73fe\u5834\u3067\u306e\u8a66\u904b\u8ee2\u30b5\u30dd\u30fc\u30c8\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p><strong>\u6700\u7d42\u66f4\u65b0\u65e5<\/strong> 2025\u5e7410\u6708<br><strong>\u8457\u8005<\/strong> SYNODE\u30c6\u30af\u30cb\u30ab\u30eb\u30c1\u30fc\u30e0<br><strong>\u30ec\u30d3\u30e5\u30fc<\/strong> \u96fb\u6c17\u5de5\u5b66\u79d1<\/p>","protected":false},"excerpt":{"rendered":"<p>Introduction PV combiner box wiring diagrams provide essential visual documentation of string connections, grounding architecture, and bonding conductor routing required for safe and code-compliant photovoltaic installations. Understanding proper wiring topology, conductor sizing methodology, and grounding system integration enables installers to execute reliable connections that maintain protection integrity throughout the system lifecycle. Modern PV combiner box wiring encompasses multiple critical elements: positive and negative string conductor routing, equipment grounding conductor (EGC) connections, bonding jumper installation, overcurrent protection device integration, and proper termination techniques. Each wiring element must comply with NEC Article 690 requirements while accommodating site-specific conditions including conduit routing constraints, environmental exposure, and maintenance accessibility. This comprehensive technical guide presents [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2612,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[39],"tags":[],"class_list":["post-2633","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dc-spd"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/sinobreaker.com\/ja\/wp-json\/wp\/v2\/posts\/2633","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sinobreaker.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sinobreaker.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sinobreaker.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sinobreaker.com\/ja\/wp-json\/wp\/v2\/comments?post=2633"}],"version-history":[{"count":2,"href":"https:\/\/sinobreaker.com\/ja\/wp-json\/wp\/v2\/posts\/2633\/revisions"}],"predecessor-version":[{"id":3220,"href":"https:\/\/sinobreaker.com\/ja\/wp-json\/wp\/v2\/posts\/2633\/revisions\/3220"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sinobreaker.com\/ja\/wp-json\/wp\/v2\/media\/2612"}],"wp:attachment":[{"href":"https:\/\/sinobreaker.com\/ja\/wp-json\/wp\/v2\/media?parent=2633"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sinobreaker.com\/ja\/wp-json\/wp\/v2\/categories?post=2633"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sinobreaker.com\/ja\/wp-json\/wp\/v2\/tags?post=2633"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}