{"id":11424,"date":"2026-09-03T00:56:14","date_gmt":"2026-09-02T16:56:14","guid":{"rendered":"https:\/\/subian-electric.com\/?p=11424"},"modified":"2026-09-03T00:58:11","modified_gmt":"2026-09-02T16:58:11","slug":"what-is-the-basic-insulation-level-bil","status":"publish","type":"post","link":"https:\/\/subian-electric.com\/ja\/blog\/what-is-the-basic-insulation-level-bil\/","title":{"rendered":"\u57fa\u672c\u7d76\u7e01\u30ec\u30d9\u30eb\uff08BIL\uff09\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f"},"content":{"rendered":"<p>\u3069\u306e\u5909\u5727\u5668\u306e\u4ed5\u69d8\u66f8\u3092\u624b\u306b\u53d6\u3063\u3066\u78ba\u8a8d\u3057\u3066\u3082\u3001\u57fa\u672c\u7d76\u7e01\u30ec\u30d9\u30eb\u3001\u7565\u3057\u3066BIL\u306b\u95a2\u3059\u308b\u60c5\u5831\u3092\u898b\u3064\u3051\u308b\u3053\u3068\u306b\u306a\u308b\u3067\u3057\u3087\u3046\u3002\u4f8b\u3048\u3070\u3001\u300cBIL: 95 kV\u300d\u3084\u300cBIL: 150 kV\u300d\u3068\u3044\u3063\u305f\u5177\u5408\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u5b9a\u683c\u306b\u95a2\u3057\u3066\u7591\u554f\u3092\u6301\u3063\u3066\u3044\u305f\u308a\u3001\u4f3c\u305f\u3088\u3046\u306a\u5909\u5727\u5668\u304c\u7570\u306a\u308bBIL\u5b9a\u683c\u3092\u6301\u3064\u3053\u3068\u306b\u56f0\u60d1\u3057\u3066\u3044\u305f\u5834\u5408\u3001\u3053\u306e\u6587\u7ae0\u306f\u307e\u3055\u306b\u3042\u306a\u305f\u306e\u305f\u3081\u306e\u3082\u306e\u3067\u3059\u3002\u57fa\u672c\u7d76\u7e01\u30ec\u30d9\u30eb\u306f\u3001\u5b9f\u969b\u306b\u306f\u7d76\u7e01\u5354\u8abf\u3092\u8a18\u9332\u3059\u308b\u6700\u3082\u91cd\u8981\u306a\u4ed5\u69d8\u3067\u3059\u3002.<\/p>\n<blockquote><p>\u7c21\u5358\u306b\u8a00\u3048\u3070\u3001BIL\u307e\u305f\u306f\u57fa\u672c\u7d76\u7e01\u30ec\u30d9\u30eb\u3068\u3044\u3046\u7528\u8a9e\u306f\u3001\u96f7\u30a4\u30f3\u30d1\u30eb\u30b9\u6ce2\u306e\u6700\u5927\u96fb\u5727\u306b\u5bfe\u3057\u3066\u5b9a\u7fa9\u3055\u308c\u305f\u5909\u5727\u5668\u306e\u7d76\u7e01\u5b9a\u683c\u3092\u6307\u3057\u3001BIL\u304c\u4f55\u3067\u3042\u308b\u304b\u3092\u660e\u78ba\u306b\u3057\u307e\u3059\u3002\u8a73\u3057\u304f\u8aac\u660e\u3059\u308b\u3068\u3001BIL\u3092\u898f\u5b9a\u3059\u308b\u6a19\u6e96\u306fIEC 60076-3\u304a\u3088\u3073IEEE\/ANSI C57.12.00\u3067\u7d39\u4ecb\u3055\u308c\u3066\u3044\u307e\u3059\u3002BIL\u306fkV\uff08\u30d4\u30fc\u30af\uff09\u3067\u8868\u3055\u308c\u307e\u3059\u3002BIL\u3092\u6c7a\u5b9a\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u5b9a\u683cBIL\u30ec\u30d9\u30eb\u30671.2\/50 \u03bcs\u306e\u96f7\u30a4\u30f3\u30d1\u30eb\u30b9\u6ce2\u3092\u6ce8\u5165\u3059\u308b\u30d5\u30eb\u30a6\u30a7\u30fc\u30d6\u3092\u4f7f\u7528\u3057\u305f\u96f7\u30a4\u30f3\u30d1\u30eb\u30b9\u30c6\u30b9\u30c8\u304c\u5b9f\u65bd\u3055\u308c\u307e\u3059\u3002\u53b3\u3057\u3044\u96f7\u306e\u5f71\u97ff\u3001\u4f4e\u3044\u7d76\u7e01\u30de\u30fc\u30b8\u30f3\u3001\u5927\u304d\u306a\u30b7\u30b9\u30c6\u30e0\u96fb\u5727\u306e\u5834\u5408\u306b\u306f\u3001\u3088\u308a\u9ad8\u3044BIL\u3092\u63a1\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u3001BIL\u306f\u30a4\u30f3\u30d1\u30eb\u30b9\u8010\u5727\u306b\u306e\u307f\u9069\u7528\u3055\u308c\u3001\u30d5\u30e9\u30c3\u30b7\u30e5\u30aa\u30fc\u30d0\u30fc\u3084\u30b5\u30fc\u30b8\u96fb\u5727\u306b\u5bfe\u3059\u308b\u4fdd\u8b77\u3092\u4fdd\u8a3c\u3059\u308b\u3082\u306e\u3067\u306f\u306a\u3044\u3053\u3068\u3092\u899a\u3048\u3066\u304a\u304f\u3079\u304d\u3067\u3059\u3002.<\/p><\/blockquote>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11426\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/09\/What-Is-the-Basic-Insulation-Level-BIL.webp\" alt=\"\u57fa\u672c\u7d76\u7e01\u30ec\u30d9\u30eb\uff08BIL\uff09\u3068\u306f\u4f55\u3067\u3059\u304b\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>BIL\u306e\u610f\u5473<\/h2>\n<p>\u57fa\u672c\u7d76\u7e01\u30ec\u30d9\u30eb\uff08BIL\uff09\u306f\u3001\u96f7\u30a4\u30f3\u30d1\u30eb\u30b9\u306b\u3088\u3063\u3066\u5b9a\u7fa9\u3055\u308c\u308b\u6700\u5927\u96fb\u5727\u3092\u6307\u3057\u307e\u3059\u3002\u96f7\u304c\u9001\u96fb\u7dda\u306b\u843d\u3061\u305f\u308a\u3001\u30b7\u30b9\u30c6\u30e0\u3092\u901a\u3058\u3066\u30b5\u30fc\u30b8\u304c\u767a\u751f\u3057\u305f\u308a\u3059\u308b\u3068\u3001\u96fb\u6c17\u30b5\u30fc\u30b8\u304c\u751f\u6210\u3055\u308c\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u901a\u5e38\u306e\u52d5\u4f5c\u96fb\u5727\u3092\u8d85\u3048\u308b\u96fb\u5727\u6ce2\u304c\u767a\u751f\u3057\u307e\u3059\u3002BIL\u306f\u3001\u96f7\u306b\u3088\u3063\u3066\u751f\u6210\u3055\u308c\u305f\u305d\u306e\u30b5\u30fc\u30b8\u3092\u7d76\u7e01\u304c\u7834\u58ca\u3055\u308c\u308b\u3053\u3068\u306a\u304f\u51e6\u7406\u3067\u304d\u308b\u3088\u3046\u306b\u5909\u5727\u5668\u304c\u8a08\u7b97\u3057\u305f\u5024\u3067\u3042\u308a\u300195\u30ad\u30ed\u30dc\u30eb\u30c8\u306e\u3088\u3046\u306b\u30ad\u30ed\u30dc\u30eb\u30c8\u3067\u8868\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/p>\n<p>BIL\u306f\u7279\u306b\u91cd\u8981\u3067\u3059\u3002\u306a\u305c\u306a\u3089\u3001\u7d76\u7e01\u306e\u6545\u969c\u306f\u91cd\u5927\u306a\u554f\u984c\u3092\u5f15\u304d\u8d77\u3053\u3057\u3001\u975e\u5e38\u306b\u9ad8\u984d\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u304b\u3089\u3067\u3059\u3002\u5185\u90e8\u3067\u30d5\u30e9\u30c3\u30b7\u30e5\u3057\u305f\u5909\u5727\u5668\u306f\u3001\u305d\u306e\u5834\u3067\u4fee\u7406\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002BIL\u306f\u8a2d\u8a08\u8005\u3068\u8cfc\u5165\u8005\u306e\u5171\u901a\u306e\u8a00\u8a9e\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u300c\u3053\u306e15 kV\u306e\u5b9a\u683c\u306e\u5909\u5727\u5668\u306f\u300195 kV\u306e\u96f7\u306b\u3088\u3063\u3066\u751f\u6210\u3055\u308c\u308b\u96fb\u5727\u30b5\u30fc\u30b8\u306b\u8010\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u300d\u3068\u3044\u3063\u305f\u5177\u5408\u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001BIL\u306f\u7d76\u7e01\u5354\u8abf\u306e\u3059\u3079\u3066\u306e\u30d7\u30ed\u30bb\u30b9\u30921\u3064\u306e\u30d1\u30cd\u30eb\u306b\u96c6\u7d04\u3057\u3001\u30c7\u30d0\u30a4\u30b9\u306b\u63d0\u4f9b\u3055\u308c\u308b\u4fdd\u8b77\u30ec\u30d9\u30eb\u3092\u5272\u308a\u5f53\u3066\u307e\u3059\u3002 <a href=\"\/ja\/blog\/transformer-specifications-explained\/\">\u5909\u5727\u5668\u4ed5\u69d8\u30ac\u30a4\u30c9<\/a> BIL\u304c\u540d\u672d\u3084\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u306e\u4ed6\u306e\u5b9a\u683c\u306e\u4e2d\u3067\u3069\u306e\u4f4d\u7f6e\u306b\u3042\u308b\u304b\u3092\u8aac\u660e\u3057\u307e\u3059\u3002.<\/p>\n<h2>BIL\u306e\u6e2c\u5b9a\u3068\u30c6\u30b9\u30c8\u306e\u65b9\u6cd5<\/h2>\n<p>BIL\u306f\u63a8\u5b9a\u306b\u3088\u3063\u3066\u5f97\u3089\u308c\u308b\u5358\u7d14\u306a\u5024\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5b9f\u969b\u306b\u306f\u30c6\u30b9\u30c8\u30ec\u30d9\u30eb\u3092\u6307\u3057\u307e\u3059\u3002BIL\u306e\u691c\u8a3c\u306f\u901a\u5e38\u3001IEEE C57.12.90\u304a\u3088\u3073IEC 60076-3\u306b\u5f93\u3063\u3066\u30d5\u30eb\u30a6\u30a7\u30fc\u30d6\u96f7\u30a4\u30f3\u30d1\u30eb\u30b9\u30c6\u30b9\u30c8\u3092\u5b9f\u65bd\u3059\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u30c6\u30b9\u30c8\u306f\u30011.2\/50 \u00b5s\u306e\u6ce2\u5f62\u3092\u6301\u3064\u96f7\u30a4\u30f3\u30d1\u30eb\u30b9\u3092\u9069\u7528\u3059\u308b\u3053\u3068\u304b\u3089\u6210\u308a\u307e\u3059\u3002\u30a4\u30f3\u30d1\u30eb\u30b9\u306e\u7acb\u3061\u4e0a\u304c\u308a\u6642\u9593\u306f1.2 \u00b5s\u3067\u3001\u6ce2\u306e\u6e1b\u8870\u306b\u306f50 \u00b5s\u304b\u304b\u308a\u3001\u96f7\u306e\u5f71\u97ff\u3092\u30e2\u30c7\u30eb\u5316\u3057\u307e\u3059\u3002.<\/li>\n<li>\u6ce2\u306e\u30d4\u30fc\u30af\u306f\u5b9a\u683cBIL\uff08\u4f8b\uff1a15 kV\u306e\u5909\u5727\u5668\u306e\u5834\u5408\u306f95 kV\uff09\u306b\u4e00\u81f4\u3057\u307e\u3059\u3002.<\/li>\n<li>\u30c8\u30e9\u30f3\u30b9\u306f\u3001\u30d5\u30e9\u30c3\u30b7\u30e5\u30aa\u30fc\u30d0\u30fc\u3084\u7d76\u7e01\u306e\u6545\u969c\u306a\u3057\u306b\u3001\u5b9a\u7fa9\u3055\u308c\u305f\u6700\u5c0f\u9650\u306e\u9069\u7528\u56de\u6570\u306b\u8010\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/li>\n<li>\u9ad8\u96fb\u5727\u30c8\u30e9\u30f3\u30b9\u306f\u3001\u8ffd\u52a0\u306e\u30c1\u30e7\u30c3\u30d7\u6ce2\u304a\u3088\u3073\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u30a4\u30f3\u30d1\u30eb\u30b9\u30c6\u30b9\u30c8\u3092\u53d7\u3051\u307e\u3059\u304c\u3001BIL\u306f\u5e38\u306b\u30d5\u30eb\u30a6\u30a7\u30fc\u30d6\u96f7\u30a4\u30f3\u30d1\u30eb\u30b9\u8010\u5727\u30ec\u30d9\u30eb\u306b\u3088\u3063\u3066\u5b9a\u7fa9\u3055\u308c\u307e\u3059\u3002.<\/li>\n<\/ul>\n<p>\u5b9f\u969b\u306e\u610f\u5473\u3067\u306f\u3001BIL\u306f\u3001\u30b5\u30f3\u30d7\u30eb\u307e\u305f\u306f\u751f\u7523\u30e6\u30cb\u30c3\u30c8\u306e\u3044\u305a\u308c\u304b\u3067\u3001\u30e9\u30dc\u30c6\u30b9\u30c8\u4e2d\u306b\u793a\u3055\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u30d4\u30fc\u30af\u5024\u3092\u8868\u3057\u307e\u3059\u3002\u5b8c\u5168\u306a\u53d7\u5165\u8a66\u9a13\u30b9\u30a4\u30fc\u30c8 \u2014 \u30a4\u30f3\u30d1\u30eb\u30b9\u30c6\u30b9\u30c8\u3092\u542b\u3080 \u2014 \u306f\u79c1\u305f\u3061\u306e <a href=\"\/ja\/blog\/transformer-testing-guide\/\">\u30c8\u30e9\u30f3\u30b9\u8a66\u9a13\u30ac\u30a4\u30c9<\/a>, \u306b\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u307b\u3068\u3093\u3069\u306e\u7d76\u7e01\u6545\u969c\u306f\u3001\u51fa\u8377\u524d\u306b\u5de5\u5834\u8a66\u9a13\u3067\u898b\u3064\u3051\u308b\u3079\u304d\u6b20\u9665\u306b\u8d77\u56e0\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11427\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/09\/Standard-BIL-Levels-Reference-Tables.webp\" alt=\"\u6a19\u6e96BIL\u30ec\u30d9\u30eb\uff08\u53c2\u8003\u8868\uff09\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>\u6a19\u6e96BIL\u30ec\u30d9\u30eb\uff08\u53c2\u8003\u8868\uff09<\/h2>\n<p>IEEE\/ANSI C57.12.00\u3067\u306f\u3001\u6cb9\u306b\u6d78\u3055\u308c\u305f\u30c8\u30e9\u30f3\u30b9\u306e\u305f\u3081\u306e\u901a\u5e38\u306eBIL\u5024\u304c\u8a73\u7d30\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u592a\u5b57\u3067\u793a\u3055\u308c\u305fBIL\u5024\u306f\u3001\u3059\u3079\u3066\u306e\u96fb\u5727\u30af\u30e9\u30b9\u306e\u6a19\u6e96\u5024\u3067\u3059\uff1a<\/p>\n<table>\n<tbody>\n<tr>\n<th>\u5b9a\u683c\u7cfb\u7d71\u96fb\u5727\uff08kV\uff09<\/th>\n<th>\u6a19\u6e96BIL\uff08kV\u30d4\u30fc\u30af\uff09<\/th>\n<th>\u4e00\u822c\u7684\u306a\u4f4e\u6e1bBIL<\/th>\n<\/tr>\n<tr>\n<td>2\uff08\u914d\u96fb\uff09<\/td>\n<td>30<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>2.5<\/td>\n<td>45<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td>60<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>8.7<\/td>\n<td>75<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>15\uff08\u914d\u96fb\uff09<\/td>\n<td>95<\/td>\n<td>\u2014<\/td>\n<\/tr>\n<tr>\n<td>25<\/td>\n<td>150<\/td>\n<td>125<\/td>\n<\/tr>\n<tr>\n<td>34.5<\/td>\n<td>200<\/td>\n<td>150<\/td>\n<\/tr>\n<tr>\n<td>46<\/td>\n<td>250<\/td>\n<td>200<\/td>\n<\/tr>\n<tr>\n<td>69<\/td>\n<td>350<\/td>\n<td>250<\/td>\n<\/tr>\n<tr>\n<td>115<\/td>\n<td>550<\/td>\n<td>450 \/ 350<\/td>\n<\/tr>\n<tr>\n<td>138<\/td>\n<td>650<\/td>\n<td>550 \/ 450<\/td>\n<\/tr>\n<tr>\n<td>161<\/td>\n<td>750<\/td>\n<td>650 \/ 550<\/td>\n<\/tr>\n<tr>\n<td>230<\/td>\n<td>900<\/td>\n<td>825 \/ 750<\/td>\n<\/tr>\n<tr>\n<td>345<\/td>\n<td>1,175<\/td>\n<td>1,050 \/ 900<\/td>\n<\/tr>\n<tr>\n<td>500<\/td>\n<td>1,675<\/td>\n<td>1,550 \/ 1,425<\/td>\n<\/tr>\n<tr>\n<td>765<\/td>\n<td>2,050<\/td>\n<td>1,925 \/ 1,800<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4e7e\u5f0f\u30c8\u30e9\u30f3\u30b9\uff08IEEE C57.12.01\uff09\u306e\u5834\u5408\u3001\u540c\u3058\u96fb\u5727\u30ec\u30d9\u30eb\u306b\u5bfe\u3057\u3066BIL\u5024\u306f\u4f4e\u304f\u306a\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u300115 kV\u306e\u4e7e\u5f0f\u30c8\u30e9\u30f3\u30b9\u306eBIL\u5b9a\u683c\u306f\u901a\u5e3895\u307e\u305f\u306f110 kV\u3067\u3059\u3002IEC\u30b7\u30b9\u30c6\u30e0\uff08IEC 60076-3\uff09\u306b\u3082BIL\u5b9a\u683c\u306e\u8868\u304c\u3042\u308a\u307e\u3059\uff1aBIL\u5024\u306f\u6700\u9ad8\u7cfb\u7d71\u96fb\u5727Um\u306b\u5f93\u3063\u3066\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u300112 kV\u30b7\u30b9\u30c6\u30e0\u306eBIL\u5024\u306f75 kV\u300124 kV \u2192 125 kV\u300136 kV \u2192 170 kV\u300172.5 kV \u2192 325 kV\u3001123 kV \u2192 550 kV\u3001145 kV \u2192 650 kV\u3001245 kV \u2192 1,050 kV\u3067\u3059\u3002\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u652f\u914d\u3059\u308b\u6a19\u6e96\u306b\u95a2\u4fc2\u306a\u304f\u3001\u4ed5\u69d8\u30d7\u30ed\u30bb\u30b9\u306f\u540c\u3058\u3067\u3059 \u2014 \u305d\u3057\u3066 <a href=\"\/ja\/blog\/distribution-transformer-basics\/\">\u914d\u96fb\u30c8\u30e9\u30f3\u30b9\u306e\u57fa\u672c<\/a> \u8a18\u4e8b\u306f\u3001\u96fb\u5727\u30af\u30e9\u30b9\u3068BIL\u304c\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u304a\u3088\u3073\u7523\u696d\u7528\u306e\u305f\u3081\u306b\u3069\u306e\u3088\u3046\u306b\u4e00\u7dd2\u306b\u9078\u629e\u3055\u308c\u308b\u304b\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n<h2>\u3088\u308a\u9ad8\u3044BIL\u3092\u6307\u5b9a\u3059\u308b\u30bf\u30a4\u30df\u30f3\u30b0<\/h2>\n<p>\u6a19\u6e96BIL\u306f\u3001\u30ec\u30d9\u30eb\u3092\u4e0a\u3052\u308b\u7406\u7531\u304c4\u3064\u3042\u308b\u5834\u5408\u3001\u9802\u70b9\u3067\u306f\u306a\u304f\u57fa\u6e96\u5024\u3068\u3057\u3066\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\uff1a<\/p>\n<ul>\n<li>\u96f7\u306e\u30ea\u30b9\u30af\u304c\u9ad8\u3044\u30b5\u30a4\u30c8\u3002\u5c71\u5cb3\u5730\u5e2f\u3001\u5e74\u9593\u306e\u96f7\u96e8\u306e\u6570\u304c\u591a\u3044\u5834\u6240\uff08\u96f7\u96e8\u6d3b\u52d5\uff09\u3001\u9577\u3044\u9732\u51fa\u7dda\u306f\u3001\u3088\u308a\u9ad8\u3044BIL\u3092\u4f7f\u7528\u3059\u308b\u7406\u7531\u3068\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/li>\n<li>\u4fdd\u8b77\u306e\u4f59\u88d5\u304c\u4e0d\u5341\u5206\u3002\u9ad8\u3044\u30b5\u30fc\u30b8\u74b0\u5883\u6761\u4ef6\u306e\u4e2d\u3067\u30a2\u30ec\u30b9\u30bf\u3092\u914d\u7f6e\u3059\u308b\u53ef\u80fd\u6027\u306b\u5236\u9650\u304c\u3042\u308b\u5834\u5408\u3001\u3053\u306e\u9ad8\u3044\u4fdd\u8b77\u30ec\u30d9\u30eb\u304c\u305d\u306e\u8ddd\u96e2\u3068\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3092\u88dc\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/li>\n<li>\u91cd\u8981\u307e\u305f\u306f\u4ea4\u63db\u304c\u96e3\u3057\u3044\u30e6\u30cb\u30c3\u30c8\u3002.<\/li>\n<li>\u4fdd\u8b77\u30ec\u30d9\u30eb\u306e\u4f4e\u4e0b\u3002\u4f4e\u6e1bBIL\u30b5\u30a4\u30ba\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u30b3\u30b9\u30c8\u3092\u524a\u6e1b\u3067\u304d\u307e\u3059\u304c\u3001\u3053\u308c\u306f\u30a2\u30ec\u30b9\u30bf\u306e\u614e\u91cd\u306a\u8abf\u6574\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u3002.<\/li>\n<\/ul>\n<p>\u9ad8\u3044BIL\u306f\u3001\u8a2d\u8a08\u6bb5\u968e\u3067\u4e88\u60f3\u3055\u308c\u308b\u7d76\u7e01\u304a\u3088\u3073\u30af\u30ea\u30a2\u30e9\u30f3\u30b9\u306e\u554f\u984c\u3092\u30ab\u30d0\u30fc\u3059\u308b\u305f\u3081\u306b\u304b\u306a\u308a\u306e\u91d1\u984d\u306e\u6295\u8cc7\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u9069\u5207\u306a\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u306f\u5e38\u306b\u8abf\u6574\u7814\u7a76\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u305d\u306e\u7814\u7a76\u306e\u63a5\u5730\u304a\u3088\u3073\u30a2\u30ec\u30b9\u30bf\u5074\u306f\u79c1\u305f\u3061\u306e <a href=\"\/ja\/blog\/transformer-grounding-basics\/\">\u30c8\u30e9\u30f3\u30b9\u63a5\u5730\u306e\u57fa\u672c<\/a> \u8a18\u4e8b\u3067\u30ab\u30d0\u30fc\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u63a5\u5730\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u30b5\u30fc\u30b8\u30a8\u30cd\u30eb\u30ae\u30fc\u304c\u5b9f\u969b\u306b\u3069\u306e\u3088\u3046\u306b\u6563\u9038\u3055\u308c\u308b\u304b\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002.<\/p>\n<h2>BIL\u304c\u30ab\u30d0\u30fc\u3057\u306a\u3044\u3053\u3068<\/h2>\n<p>BIL\u306b\u95a2\u3057\u3066\u78ba\u304b\u306a\u3053\u3068\u306f1\u3064\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u306f\u300c\u30a4\u30f3\u30d1\u30eb\u30b9\u8010\u5727\u300d\u306e\u5074\u9762\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u4e00\u822c\u5316\u3059\u308b\u30d0\u30a4\u30e4\u30fc\u306f\u9a5a\u304f\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002BIL\u306f\u4ee5\u4e0b\u3092\u63d0\u4f9b\u3057\u307e\u305b\u3093\uff1a<\/p>\n<ul>\n<li>\u6c5a\u67d3\u306b\u3088\u308b\u30d5\u30e9\u30c3\u30b7\u30e5\u30aa\u30fc\u30d0\u30fc\u306e\u554f\u984c\u3002\u6c5a\u67d3\u3055\u308c\u305f\u30d6\u30c3\u30b7\u30f3\u30b0\u307e\u305f\u306f\u7d76\u7e01\u4f53\u306f\u3001\u96f7\u6483\u304c\u5230\u9054\u3059\u308b\u524d\u306b\u901a\u5e38\u306e\u4f5c\u696d\u96fb\u5727\u4e0b\u3067\u30d5\u30e9\u30c3\u30b7\u30e5\u30aa\u30fc\u30d0\u30fc\u3092\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30af\u30ea\u30fc\u30d7\u8ddd\u96e2\u3068\u6c5a\u67d3\u30af\u30e9\u30b9\u306e\u554f\u984c\u3067\u3042\u308a\u3001BIL\u306e\u554f\u984c\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/li>\n<li>\u96fb\u529b\u5468\u6ce2\u6570\u306e\u904e\u96fb\u5727\u3002\u904e\u96fb\u5727\u304c\u6301\u7d9a\u3059\u308b\u7406\u7531\u306f\u3001\u8abf\u6574\u5668\u306e\u6545\u969c\u307e\u305f\u306f\u30d5\u30a7\u30ed\u30ec\u30be\u30ca\u30f3\u30b9\u306b\u3088\u308b\u3082\u306e\u3067\u3042\u308a\u3001\u7d76\u7e01\u4f53\u306b\u71b1\u7684\u304a\u3088\u3073\u96fb\u6c17\u7684\u30b9\u30c8\u30ec\u30b9\u3092\u4e0e\u3048\u307e\u3059\u3002\u96fb\u529b\u5909\u5727\u5668\u306e\u904b\u8ee2\u6642\u9593\u306f\u3001\u30de\u30a4\u30af\u30ed\u79d2\u30a4\u30f3\u30d1\u30eb\u30b9\u30c6\u30b9\u30c8\u3067\u306f\u8003\u616e\u3055\u308c\u307e\u305b\u3093\u3002.<\/li>\n<li>\u5185\u90e8\u306e\u5f31\u70b9\u3002BIL\u30c6\u30b9\u30c8\u306f\u5f31\u70b9\u3092\u898b\u3064\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u304c\u3001\u6e7f\u6c17\u306e\u4fb5\u5165\u3001\u30b3\u30a4\u30eb\u306e\u52d5\u304d\u3001\u7d76\u7e01\u4f53\u306e\u8001\u5316\u30d7\u30ed\u30bb\u30b9\u306f\u3001\u9577\u671f\u9593\u306b\u308f\u305f\u3063\u3066\u305d\u308c\u306b\u60aa\u5f71\u97ff\u3092\u53ca\u307c\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u5de5\u5834\u306e\u30a4\u30f3\u30d1\u30eb\u30b9\u30c6\u30b9\u30c8\u306b\u52a0\u3048\u3066\u3001\u6cb9\u306e\u30c6\u30b9\u30c8\u3084DGA\u306a\u3069\u306e\u7d99\u7d9a\u7684\u306a\u30c1\u30a7\u30c3\u30af\u304c\u884c\u308f\u308c\u307e\u3059\u3002.<\/li>\n<li>\u6a5f\u68b0\u7684\u89b3\u70b9\u304b\u3089\u306e\u5bff\u547d\u3002\u5909\u5727\u5668\u304c\u30a4\u30f3\u30d1\u30eb\u30b9\u30c6\u30b9\u30c8\u306b\u5408\u683c\u3057\u3066\u3082\u3001\u77ed\u7d61\u3001\u904e\u8ca0\u8377\u3001\u307e\u305f\u306f\u7d76\u7e01\u4f53\u306e\u8001\u5316\u306b\u3088\u3063\u3066\u640d\u50b7\u3092\u53d7\u3051\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/li>\n<\/ul>\n<p>BIL\u306f\u3001\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u30ec\u30d9\u30eb\u3001\u907f\u96f7\u5668\u306e\u5b9a\u683c\u3001\u30af\u30ea\u30fc\u30d7\u8ddd\u96e2\u3001\u63a5\u5730\u30bf\u30a4\u30d7\u3001\u30c6\u30b9\u30c8\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u542b\u3080\u4e00\u8cab\u3057\u305f\u30bb\u30c3\u30c8\u306e\u8981\u7d20\u306e\u4e00\u3064\u3067\u3042\u308b\u3053\u3068\u3092\u5fd8\u308c\u306a\u3044\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002BIL\u306f\u4e0d\u6b7b\u306e\u6307\u6a19\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-11428\" src=\"https:\/\/subian-electric.com\/wp-content\/uploads\/2026\/09\/BIL-and-Insulation-Coordination.webp\" alt=\"BIL\u3068\u7d76\u7e01\u8abf\u6574\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>BIL\u3068\u7d76\u7e01\u8abf\u6574<\/h2>\n<p>\u7d76\u7e01\u8abf\u6574\u306e\u6982\u5ff5\u306f\u3001\u5909\u5727\u5668\u304c\u53d7\u3051\u308b\u30b5\u30fc\u30b8\u306e\u5f71\u97ff\u306b\u8010\u3048\u308b\u3053\u3068\u3092\u78ba\u5b9f\u306b\u3059\u308b\u3053\u3068\u3068\u3057\u3066\u5b9a\u7fa9\u3067\u304d\u307e\u3059\u3002\u5f93\u6765\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\uff08IEC 60071-2\uff09\u306b\u3088\u308c\u3070\u3001\u6a5f\u5668\u306e\u7d76\u7e01\u30ec\u30d9\u30eb\uff08BIL\uff09\u306f\u3001\u4fdd\u8b77\u88c5\u7f6e\uff08\u907f\u96f7\u5668\uff09\u306e\u30ec\u30d9\u30eb\u3092\u5c11\u306a\u304f\u3068\u308220%\u4e0a\u56de\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001145 kV\u306e\u8a2d\u7f6e\u3068\u3001\u5b9a\u683c\u96fb\u6d4110 kA\u306eZnO\u907f\u96f7\u5668\u306b\u304a\u3051\u308b\u6b8b\u7559\u96fb\u5727\u304c400 kV\u306e\u5834\u5408\u3001\u30d6\u30c3\u30b7\u30f3\u30b0\uff08\u304a\u3088\u3073\u6a5f\u5668\uff09\u306eBIL\u306f\u5c11\u306a\u304f\u3068\u3082480 kV\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u6a19\u6e96\u306e550 kV\u30ec\u30d9\u30eb\u3092\u9069\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u7d76\u7e01\u30ec\u30d9\u30eb\u304c\u8981\u4ef6\u3092\u6e80\u305f\u3055\u306a\u3044\u5834\u5408\u306f\u3001BIL\u306e\u5024\u3092\u5897\u52a0\u3055\u305b\u308b\u304b\u3001\u907f\u96f7\u5668\u3092\u6a5f\u5668\u306b\u8fd1\u3065\u3051\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n<p>\u30d6\u30c3\u30b7\u30f3\u30b0\u3082\u540c\u3058\u7d76\u7e01\u8abf\u6574\u306b\u542b\u307e\u308c\u307e\u3059\u3002\u30d6\u30c3\u30b7\u30f3\u30b0\u306eBIL\u306f\u3001\u63a5\u7d9a\u3055\u308c\u308b\u5dfb\u7dda\u306eBIL\u3068\u7b49\u3057\u3044\u304b\u305d\u308c\u4ee5\u4e0a\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u305a\u3001\u305d\u3046\u3067\u306a\u3044\u5834\u5408\u306f\u5168\u4f53\u306e\u30c1\u30a7\u30fc\u30f3\u306e\u6700\u3082\u5f31\u3044\u8981\u7d20\u306b\u306a\u308a\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u3053\u308c\u3089\u306e\u30c7\u30d0\u30a4\u30b9\uff08\u5909\u5727\u5668\u3001\u30d6\u30c3\u30b7\u30f3\u30b0\u3001\u907f\u96f7\u5668\uff09\u306e\u3059\u3079\u3066\u306e\u30b7\u30fc\u30c8\u306b\u306fBIL\u304c\u542b\u307e\u308c\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u30d7\u30ed\u30bb\u30b9\u306b\u53c2\u52a0\u3059\u308b\u3059\u3079\u3066\u306e\u6a5f\u5668\u306eBIL\u306e\u5024\u306f\u7b49\u3057\u304f\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u5909\u5727\u5668\u3068\u305d\u306e\u30a2\u30af\u30bb\u30b5\u30ea\u30fc\u3092\u8cfc\u5165\u3059\u308b\u969b\u306b\u30011\u3064\u306e\u6587\u66f8\u3067\u8abf\u6574\u3055\u308c\u305f\u30a4\u30f3\u30d1\u30eb\u30b9\u30ec\u30d9\u30eb\u3092\u8981\u6c42\u3059\u308b\u3053\u3068\u306f\u3001\u8abf\u6574\u3055\u308c\u305f\u8a2d\u7f6e\u3068\u5c06\u6765\u306e\u6545\u969c\u306e\u9055\u3044\u3067\u3059\u3002 <a href=\"\/ja\/product\/distribution-transformer\/\">\u914d\u96fb\u30c8\u30e9\u30f3\u30b9\u30d5\u30a9\u30fc\u30de\u30fc\u88fd\u54c1\u7bc4\u56f2<\/a> \u5404\u96fb\u5727\u30af\u30e9\u30b9\u3067\u5229\u7528\u53ef\u80fd\u306a\u6a19\u6e96BIL\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u30ea\u30b9\u30c8\u3057\u307e\u3059\u3002.<\/p>\n<h2>\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n<h3>\u5909\u5727\u5668\u306e\u57fa\u672c\u7d76\u7e01\u30ec\u30d9\u30eb\uff08BIL\uff09\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p>BIL\u306f\u3001\u30c8\u30e9\u30f3\u30b9\u306e\u7d76\u7e01\u304c\u30d5\u30e9\u30c3\u30b7\u30e5\u30aa\u30fc\u30d0\u30fc\u306a\u3057\u306b\u8010\u3048\u308b\u3053\u3068\u304c\u7fa9\u52d9\u4ed8\u3051\u3089\u308c\u3066\u3044\u308b\u6a19\u6e96\u30a4\u30f3\u30d1\u30eb\u30b9\u96f7\u306e\u6700\u9ad8\u96fb\u57271.2\/50 \u00b5s\u3092\u6307\u3057\u307e\u3059\u3002\u3053\u308c\u306fkV\u30d4\u30fc\u30af\u3067\u793a\u3055\u308c\u3001\u4f8b\u3048\u3070\u300115 kV\u306e\u914d\u96fb\u30c8\u30e9\u30f3\u30b9\u306e\u5834\u5408\u3001BIL\u306f95 kV\u3067\u3042\u308a\u300169 kV\u306e\u30c8\u30e9\u30f3\u30b9\u306e\u5834\u5408\u306f350 kV\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u305d\u306e\u5b9a\u7fa9\/\u8a66\u9a13\u306f\u3001IEEE\/ANSI C57.12.00\/C57.12.90\uff08\u307e\u305f\u306fIEC 60076-3\uff09\u306b\u5f93\u3063\u3066\u8a18\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n<h3>\u57fa\u672c\u7d76\u7e01\u30ec\u30d9\u30eb\uff08BIL\uff09\u306e\u5b9a\u7fa9\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u57fa\u672c\u7d76\u7e01\u30ec\u30d9\u30eb\u306f\u3001\u30a4\u30f3\u30d1\u30eb\u30b9\u96fb\u5727\u306b\u5bfe\u3059\u308b\u8a31\u5bb9\u5024\u3067\u3042\u308a\u3001\u7d76\u7e01\u30b7\u30b9\u30c6\u30e0\u304c\u8010\u3048\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u6700\u9ad8\u96fb\u5727\uff08BIL\u30ec\u30d9\u30eb\uff09\u3092\u6307\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u6a5f\u5668\u306e\u5de5\u5834\u8a66\u9a13\u306b\u95a2\u9023\u3059\u308b\u304b\u3001\u96fb\u5727\u30af\u30e9\u30b9\u306e\u7d76\u7e01\u30ec\u30d9\u30eb\u306e\u30ea\u30b9\u30c8\u306b\u304a\u3051\u308b\u7279\u5b9a\u306e\u5024\u3067\u3059\u3002.<\/p>\n<h3>BIL\u3068SIL\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p>BIL\u306f\u30a4\u30f3\u30d1\u30eb\u30b9\u7d76\u7e01\u30ec\u30d9\u30eb\uff08\u96f7\u30ec\u30d9\u30eb\uff09\u3092\u8868\u3057\u3001\u305d\u306e\u30d4\u30fc\u30af\u306ekV\u30ec\u30d9\u30eb\u3092\u793a\u3057\u307e\u3059\u3002\u30c8\u30e9\u30f3\u30b9\u306e\u6587\u8108\u3067\u306f\u3001SIL\u306f\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u30ec\u30d9\u30eb\u3092\u6307\u3057\u3001\u901a\u5e38\u3001\u9ad8\u96fb\u5727\uff08345 kV\u4ee5\u4e0a\uff09\u3067\u767a\u751f\u3059\u308b\u9577\u3044\u6ce2\u524d\u3092\u6301\u3064\u9045\u3044\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u30b5\u30fc\u30b8\u306b\u9069\u7528\u3055\u308c\u307e\u3059\u3002\u4e21\u65b9\u306e\u7528\u8a9e\u306f\u3001\u7570\u306a\u308b\u72b6\u6cc1\u306b\u5bfe\u51e6\u3059\u308b\u305f\u3081\u306b\u7d76\u7e01\u8abf\u6574\u3092\u8003\u616e\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u305f\u3081\u3001\u985e\u4f3c\u3057\u3066\u3044\u307e\u3059\uff1aBIL\u306f\u9ad8\u96fb\u5727\u30b9\u30d1\u30a4\u30af\u7528\u3001SIL\u306f\u9045\u3044\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u7528\u3067\u3059\u3002.<\/p>\n<h3>\u6700\u5c0f\u30e1\u30ac\u30fc\u5024\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u53b3\u5bc6\u306a\u6700\u5c0f\u5024\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u5b9f\u969b\u306b\u306f\u5909\u5727\u5668\u306e\u5b9a\u683c\u96fb\u57271 kV\u3042\u305f\u308a\u7d041 M\u03a9\u306e\u7d76\u7e01\u62b5\u6297\u304c\u5fc5\u8981\u3067\u3059\uff08\u307e\u305f\u30012500V\u306e\u8a66\u9a13\u96fb\u5727\u3092\u4e0b\u56de\u308b\u914d\u96fb\u5909\u5727\u5668\u306e\u5834\u5408\u306f\u7d04100 M\u03a9\uff09\u3002\u6e2c\u5b9a\u6642\u306e\u6700\u3082\u91cd\u8981\u306a\u8981\u7d20\u306f\u3001\u5024\u305d\u306e\u3082\u306e\u3088\u308a\u3082\u5024\u306e\u50be\u5411\u3067\u3059\u3002.<\/p>\n<h2>\u53c2\u8003\u6587\u732e<\/h2>\n<ul>\n<li><a href=\"https:\/\/grouper.ieee.org\/groups\/transformers\/subcommittees\/dielectric_test\/C57.12.00_tables\/C57.12.00TestTables1&amp;2.pdf\" rel=\"nofollow noopener\" target=\"_blank\">IEEE C57.12.00 \u8a66\u9a13\u8868 \u2014 \u914d\u96fb\u304a\u3088\u3073\u96fb\u529b\u5909\u5727\u5668\u306e\u7d76\u7e01\u30ec\u30d9\u30eb<\/a><\/li>\n<li><a href=\"https:\/\/www.eaton.com\/content\/dam\/eaton\/products\/medium-voltage-power-distribution-control-systems\/cooper-power-series-transformers\/functional-specification-for-three-phase-substation-distribution-transformers-300-12000-kva-ps202005en.pdf\" rel=\"nofollow noopener\" target=\"_blank\">Eaton \u2014 \u30b5\u30d6\u30b9\u30c6\u30fc\u30b7\u30e7\u30f3\u5909\u5727\u5668\u4ed5\u69d8\uff08\u96fb\u5727\u304a\u3088\u3073BIL\u8868\uff09<\/a><\/li>\n<li><a href=\"https:\/\/ziyaopower.com\/en\/knowledge\/transformer-bushing-selection\" rel=\"nofollow noopener\" target=\"_blank\">Ziyao Power \u2014 \u30d6\u30c3\u30b7\u30f3\u30b0\u9078\u5b9a\u304a\u3088\u3073BIL\u8abf\u6574\u30ac\u30a4\u30c9<\/a><\/li>\n<li><a href=\"https:\/\/www.saso.gov.sa\/ar\/Laws-And-Regulations\/Technical_regulations\/Documents\/SASO-IEEE-C57-2018-E.pdf\" rel=\"nofollow noopener\" target=\"_blank\">IEEE C57 \u2014 \u8a08\u5668\u5909\u5727\u5668BIL\u304a\u3088\u3073\u7d76\u7e01\u8a66\u9a13\u8868<\/a><\/li>\n<li><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/62860\" rel=\"nofollow noopener\" target=\"_blank\">IEC 60076-3 \u2014 \u96fb\u529b\u5909\u5727\u5668\uff1a\u7d76\u7e01\u30ec\u30d9\u30eb\u3001\u7d76\u7e01\u8a66\u9a13<\/a><\/li>\n<\/ul>\n<h2>\u7d50\u8ad6<\/h2>\n<p>\u57fa\u672c\u7d76\u7e01\u30ec\u30d9\u30eb\u306f\u3001\u5909\u5727\u5668\u306e\u96f7\u304a\u3088\u3073\u30b5\u30fc\u30b8\u69cb\u9020\u3092\u542b\u307f\u3001\u7279\u5b9a\u306e\u6700\u5927\u96fb\u5727\u5024\u3092\u63d0\u4f9b\u3057\u307e\u3059\uff1a15 kV\u30af\u30e9\u30b9\u69cb\u9020\u306e\u5834\u5408\u306f95 kV\u300169 kV\u30af\u30e9\u30b9\u306e\u5834\u5408\u306f350 kV\u3001500 kV\u30af\u30e9\u30b9\u69cb\u9020\u306e\u5834\u5408\u306f1,675 kV\u3067\u3059\uff1b\u3053\u308c\u3089\u306e\u5024\u306f\u3001\u7d76\u7e01\u69cb\u9020\u306e\u5f37\u3055\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u6982\u5ff5\u306e\u672c\u8cea\u306f\u8abf\u6574\u306b\u3042\u308a\u3001BIL\u3092\u96fb\u5727\u30af\u30e9\u30b9\u306b\u5408\u308f\u305b\u3001\u539a\u3044\u4fdd\u8b77\u30de\u30fc\u30b8\u30f3\u3068\u96f7\u306e\u5f71\u97ff\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u5909\u5727\u5668\u306eBIL\u3092\u8a55\u4fa1\u3057\u3001\u4fdd\u8b77\u30de\u30fc\u30b8\u30f3\u309220%\u4ee5\u4e0a\u306b\u4fdd\u3064\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u3001BIL\u306e\u52a9\u3051\u3092\u501f\u308a\u3066\u89e3\u6c7a\u3067\u304d\u308b\u306e\u306f\u30a4\u30f3\u30d1\u30eb\u30b9\u554f\u984c\u306e\u307f\u3067\u3042\u308b\u3053\u3068\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002.<\/p>","protected":false},"excerpt":{"rendered":"<p>If you pick up and go through any transformer specification sheet, you are bound to find information regarding what is referred to as Basic Insulation Level, or BIL for short \u2014 e.g. &#8220;BIL: 95 kV&#8221; or &#8220;BIL: 150 kV.&#8221; If you have had any query regarding these ratings or been puzzled by the fact that two similar transformers can have two different BIL ratings, this article is precisely for you. Basic insulation level is actually the most significant specification recording insulation coordination. In brief, the term BIL or Basic Insulation Level refers to the insulation rating of a transformer defined against the maximum voltage of the lightning impulse wave and [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":11426,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-11424","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/posts\/11424","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/comments?post=11424"}],"version-history":[{"count":4,"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/posts\/11424\/revisions"}],"predecessor-version":[{"id":11431,"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/posts\/11424\/revisions\/11431"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/media\/11426"}],"wp:attachment":[{"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/media?parent=11424"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/categories?post=11424"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/subian-electric.com\/ja\/wp-json\/wp\/v2\/tags?post=11424"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}