{"id":4266,"date":"2024-02-27T14:10:18","date_gmt":"2024-02-27T20:10:18","guid":{"rendered":"https:\/\/www.dreiym.com\/?p=4266"},"modified":"2025-01-17T18:02:42","modified_gmt":"2025-01-18T00:02:42","slug":"nec-2023-240-87-%e5%87%8f%e5%b0%91%e7%94%b5%e5%bc%a7%e8%83%bd%e8%80%97","status":"publish","type":"post","link":"https:\/\/vm6fr4whzn6.c.updraftclone.com\/zh\/2024\/02\/27\/nec-2023-240-87-%e5%87%8f%e5%b0%91%e7%94%b5%e5%bc%a7%e8%83%bd%e8%80%97\/","title":{"rendered":"NEC 240.87\uff1a\u51cf\u5c11\u7535\u5f27\u80fd\u91cf"},"content":{"rendered":"<p>\u7535\u6c14\u4e13\u4e1a\u4eba\u5458\u6307\u5357\u300b\uff082023 NEC \u7248\uff09\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4ec0\u4e48\u662f NEC 240.87\uff1f<\/h2>\n\n\n\n<p>NEC 240.87 \u662f\u300a\u7f8e\u56fd\u56fd\u5bb6\u7535\u6c14\u6807\u51c6\u300b\u4e2d\u7684\u4e00\u4e2a\u89c4\u8303\u7ae0\u8282\u3002 <a href=\"https:\/\/en.wikipedia.org\/wiki\/National_Electrical_Code\" title=\"\">\u56fd\u5bb6\u7535\u6c14\u89c4\u8303\u300b\uff08NEC<\/a>)\u89c4\u5b9a\uff0c\u989d\u5b9a\u7535\u6d41\u4e3a 1200 \u5b89\u57f9\u6216\u66f4\u9ad8\u7684\u65ad\u8def\u5668\u5fc5\u987b\u91c7\u7528\u51cf\u5c11\u7535\u5f27\u80fd\u91cf\u7684\u65b9\u6cd5\u3002\u7535\u5f27\u80fd\u91cf\u662f\u6307\u7531\u7535\u5f27\u4ea7\u751f\u7684\u70ed\u91cf\u548c\u5149\u91cf\u3002 <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/zh\/2024\/06\/11\/%e5%bc%a7%e9%97%aa%e4%b8%8e%e6%b7%b1%e5%85%a5%e7%94%b5%e6%b0%94%e6%95%85%e9%9a%9c%e5%88%86%e6%9e%90%e5%92%8c%e6%a3%80%e6%9f%a5%e7%9a%84%e5%85%b3%e7%b3%bb\/'>\u7535\u5f27<\/a> \u6545\u969c\u7535\u5f27\u53ef\u5bf9\u8bbe\u5907\u548c\u4eba\u5458\u9020\u6210\u4e25\u91cd\u635f\u5bb3\u3002\u51cf\u5c11\u7535\u5f27\u80fd\u91cf\u7684\u65b9\u6cd5\u65e8\u5728\u51cf\u5c11\u6545\u969c\u7535\u5f27\u7684\u6301\u7eed\u65f6\u95f4\u548c\u5f3a\u5ea6\uff0c\u4ece\u800c\u5c06\u6f5c\u5728\u5371\u5bb3\u964d\u81f3\u6700\u4f4e\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">NEC 240.87 \u4e3a\u4f55\u91cd\u8981\uff1f<\/h2>\n\n\n\n<p>NEC 240.87 \u975e\u5e38\u91cd\u8981\uff0c\u56e0\u4e3a\u5b83\u89e3\u51b3\u4e86\u4ee5\u4e0b\u65b9\u9762\u7684\u4e25\u91cd\u5b89\u5168\u95ee\u9898 <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/zh\/2022\/07\/29\/%e7%94%b5%e6%b0%94%e7%b3%bb%e7%bb%9f%e6%95%85%e9%9a%9c%e7%9a%84-3-%e4%b8%aa%e5%b8%b8%e8%a7%81%e5%8e%9f%e5%9b%a0\/'>\u7535\u6c14\u7cfb\u7edf<\/a>.\u53d1\u751f\u7535\u5f27\u6545\u969c\u7684\u539f\u56e0\u6709\u5f88\u591a\uff0c\u4f8b\u5982\u7edd\u7f18\u6545\u969c\u3001 <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/zh\/2024\/02\/28\/%e5%a6%82%e4%bd%95%e9%81%bf%e5%85%8d%e7%94%b5%e6%b0%94%e8%bf%9e%e6%8e%a5%e6%9d%be%e5%8a%a8%e5%92%8c%e9%98%b2%e6%ad%a2%e7%81%ab%e7%81%be%e5%8d%b1%e9%99%a9\/'>\u8fde\u63a5\u677e\u52a8\u3001<\/a> \u5916\u6765\u7269\u4f53\u6216\u4eba\u4e3a\u9519\u8bef\u3002\u53d1\u751f\u6545\u969c\u7535\u5f27\u65f6\uff0c\u53ef\u4ea7\u751f\u9ad8\u8fbe 35,000 \u534e\u6c0f\u5ea6\u7684\u9ad8\u6e29\uff0c\u53ef\u7194\u5316\u91d1\u5c5e\u3001\u70b9\u71c3\u53ef\u71c3\u7269\uff0c\u5e76\u9020\u6210\u4e25\u91cd\u70e7\u4f24\u548c\u4f24\u5bb3\u3002\u7535\u5f27\u6545\u969c\u8fd8\u4f1a\u4ea7\u751f\u538b\u529b\u6ce2\uff0c\u5bfc\u81f4\u8033\u819c\u7834\u88c2\u3001\u80ba\u90e8\u53d7\u635f\u548c\u7a97\u6237\u7834\u788e\u3002\u636e\u7f8e\u56fd\u56fd\u5bb6\u9632\u706b\u534f\u4f1a\uff08NFPA\uff09\u79f0\uff0c\u5728\u7f8e\u56fd\uff0c\u6545\u969c\u7535\u5f27\u6bcf\u5e74\u9020\u6210 2,000 \u591a\u4eba\u53d7\u4f24\uff0c400 \u591a\u4eba\u6b7b\u4ea1\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">NEC 240.87 \u8981\u6c42\u91c7\u7528\u54ea\u4e9b\u5f27\u80fd\u964d\u4f4e\u65b9\u6cd5\uff1f<\/h2>\n\n\n\n<p>NEC 240.87 \u8981\u6c42\u5bf9\u989d\u5b9a\u7535\u6d41\u4e3a 1200 \u5b89\u57f9\u6216\u66f4\u9ad8\u7684\u65ad\u8def\u5668\u91c7\u7528\u4ee5\u4e0b\u5176\u4e2d\u4e00\u79cd\u964d\u4f4e\u7535\u5f27\u80fd\u91cf\u7684\u65b9\u6cd5\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5206\u533a\u9009\u62e9\u8054\u9501 (ZSI)\uff1a\u8fd9\u79cd\u65b9\u6cd5\u5229\u7528\u65ad\u8def\u5668\u4e4b\u95f4\u7684\u901a\u4fe1\u4fe1\u53f7\u6765\u534f\u8c03\u5176\u8df3\u95f8\u65f6\u95f4\uff0c\u5e76\u5c3d\u5feb\u9694\u79bb\u6545\u969c\u533a\u3002\u4e0e\u4f20\u7edf\u534f\u8c03\u76f8\u6bd4\uff0cZSI \u53ef\u51cf\u5c11\u9ad8\u8fbe 50% \u7684\u7535\u5f27\u80fd\u91cf\u3002ZSI \u9700\u8981\u517c\u5bb9\u7684\u65ad\u8def\u5668\u4ee5\u53ca\u65ad\u8def\u5668\u4e4b\u95f4\u7684\u63a5\u7ebf\u3002<\/li>\n\n\n\n<li>\u5dee\u52a8\u7ee7\u7535\u5668\uff1a\u8fd9\u79cd\u65b9\u6cd5\u4f7f\u7528\u7535\u6d41\u4e92\u611f\u5668\u6d4b\u91cf\u65ad\u8def\u5668\u8fdb\u51fa\u7535\u6d41\u7684\u5dee\u503c\uff0c\u5982\u679c\u5dee\u503c\u8d85\u8fc7\u8bbe\u5b9a\u503c\uff0c\u65ad\u8def\u5668\u5c31\u4f1a\u8df3\u95f8\u3002\u4e0e\u4f20\u7edf\u534f\u8c03\u65b9\u5f0f\u76f8\u6bd4\uff0c\u5dee\u52a8\u7ee7\u7535\u5668\u53ef\u51cf\u5c11\u9ad8\u8fbe 80% 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\u7684\u7535\u5f27\u80fd\u91cf\u3002\u77ac\u65f6\u8df3\u95f8\u8bbe\u7f6e\u8981\u6c42\u65ad\u8def\u5668\u5177\u6709\u53ef\u8c03\u8282\u7684\u77ac\u65f6\u8df3\u95f8\u529f\u80fd\u3002<\/li>\n\n\n\n<li>\u77ac\u65f6\u8d85\u63a7\uff1a\u8fd9\u79cd\u65b9\u6cd5\u4f7f\u7528\u7684\u65ad\u8def\u5668\u53ef\u4ee5\u8d85\u8d8a\u6b63\u5e38\u5ef6\u65f6\uff0c\u5728\u6545\u969c\u7535\u6d41\u8d85\u8fc7\u4e00\u5b9a\u6c34\u5e73\u65f6\u7acb\u5373\u8df3\u95f8\u3002\u4e0e\u4f20\u7edf\u534f\u8c03\u65b9\u5f0f\u76f8\u6bd4\uff0c\u77ac\u65f6\u8d85\u9a70\u53ef\u51cf\u5c11\u9ad8\u8fbe 60% 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<a href=\"https:\/\/vm6fr4whzn6.c.updraftclone.com\/zh\/services\/%e7%94%b5%e5%8a%9b\/%e5%bc%a7%e9%97%aa%e7%a0%94%e7%a9%b6\/\" title=\"\">\u7535\u6c14\u5de5\u7a0b\u5e08<\/a> \u5e2e\u52a9\u60a8\u627e\u5230\u5176\u4ed6\u89e3\u51b3\u65b9\u6848\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u5982\u4f55\u9075\u5b88 NEC 240.87\uff1f<\/h2>\n\n\n\n<p>\u8981\u9075\u5b88 NEC 240.87\uff0c\u7535\u6c14\u4e13\u4e1a\u4eba\u5458\u5e94\u9075\u5faa\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u786e\u5b9a\u7535\u6c14\u7cfb\u7edf\u4e2d\u989d\u5b9a\u7535\u6d41\u4e3a 1200 \u5b89\u57f9\u6216\u66f4\u9ad8\u7684\u65ad\u8def\u5668\u3002<\/li>\n\n\n\n<li>\u4e3a\u6bcf\u4e2a\u65ad\u8def\u5668\u9009\u62e9\u5e76\u5b89\u88c5\u4e00\u79cd\u5f27\u5149\u8282\u80fd\u65b9\u6cd5\u3002<\/li>\n\n\n\n<li>\u5728\u65ad\u8def\u5668\u4e0a\u6807\u6ce8\u5f27\u80fd\u964d\u4f4e\u65b9\u6cd5\u548c\u6587\u4ef6\u4f4d\u7f6e\u3002<\/li>\n\n\n\n<li>\u8bb0\u5f55\u51cf\u5c11\u7535\u5f27\u80fd\u91cf\u7684\u65b9\u6cd5\u548c\u65ad\u8def\u5668\u7684\u8bbe\u7f6e\u3002<\/li>\n\n\n\n<li>\u6d4b\u8bd5\u5e76\u9a8c\u8bc1\u5f27\u80fd\u964d\u4f4e\u65b9\u6cd5\u7684\u529f\u80fd\u3002<\/li>\n\n\n\n<li>\u66f4\u65b0\u5f27\u95ea\u5371\u9669\u5206\u6790\u548c\u7535\u6c14\u7cfb\u7edf\u7684\u5f27\u95ea\u6807\u7b7e\u3002<\/li>\n<\/ul>\n\n\n\n<p>NEC 240.87 \u662f\u4e00\u4e2a\u89c4\u8303\u7ae0\u8282\uff0c\u8981\u6c42\u5bf9\u989d\u5b9a\u7535\u6d41\u4e3a 1200 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What is NEC 240.87? NEC 240.87 is a code section in the National Electrical Code (NEC) that requires arc energy reduction methods for circuit breakers rated at 1200 amps or higher. Arc energy is the amount of heat and light produced by an electrical arc [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":4267,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_mbp_gutenberg_autopost":false,"_pgmb_is_evergreen":true,"_pgmb_ap_template_id":0,"iawp_total_views":218,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-4266","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-electrical"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 4.9.6.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"A Guide for Electrical Professionals for the 2023 NEC edition. What is NEC 240.87? 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