{"id":5180,"date":"2026-05-02T14:15:49","date_gmt":"2026-05-02T06:15:49","guid":{"rendered":"http:\/\/www.tmro.cn\/?p=5180"},"modified":"2026-05-02T14:19:16","modified_gmt":"2026-05-02T06:19:16","slug":"%e5%8c%97%e7%be%8e%e6%96%ad%e8%b7%af%e5%99%a8%e5%92%8c%e4%b8%ad%e5%9b%bd%e6%96%ad%e8%b7%af%e5%99%a8%e6%9c%89%e4%bb%80%e4%b9%88%e5%8c%ba%e5%88%ab%ef%bc%9ful489%e4%b8%8eiec60947-2%e7%9a%84%e8%af%95","status":"publish","type":"post","link":"http:\/\/www.tmro.cn\/?p=5180","title":{"rendered":"\u5317\u7f8e\u65ad\u8def\u5668\u548c\u4e2d\u56fd\u65ad\u8def\u5668\u6709\u4ec0\u4e48\u533a\u522b\uff1fUL489\u4e0eIEC60947-2\u7684\u8bd5\u9a8c\u7a0b\u5e8f\u770b\u5dee\u5f02"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

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UL489 \u4e0d\u662f\u5148\u628a\u80fd\u529b\u62c6\u6210\u51e0\u4e2a\u53c2\u6570\uff0c\u800c\u662f\u6309 X\u3001Y\u3001Z \u4e09\u4e2a sequence<\/strong> \u6765\u6392\u8bd5\u9a8c\u3002\u8fd9\u91cc\u7684 X\u3001Y\u3001Z \u4e0d\u662f\u7b49\u7ea7\uff0c\u800c\u662f\u4e09\u7ec4\u8bd5\u9a8c\u987a\u5e8f\u3002<\/p>\n\n\n\n

1 UL489 \u7684 X\u3001Y\u3001Z \u5e8f\u5217<\/strong><\/h3>\n\n\n\n
\"\"<\/figure>\n\n\n\n
    \n
  • X:\u5148\u786e\u8ba4\u57fa\u672c\u52a8\u4f5c\u3001\u53d1\u70ed\u548c\u7edd\u7f18<\/li>\n\n\n\n
  • Y:\u770b\u7ecf\u5386\u5bff\u547d\u540e\u8fd8\u80fd\u4e0d\u80fd\u6309\u8981\u6c42\u52a8\u4f5c\u548c\u5206\u65ad<\/li>\n\n\n\n
  • Z:\u770b\u66f4\u82db\u523b\u5f00\u65ad\u5de5\u51b5\u4e0b\u662f\u5426\u6210\u7acb<\/li>\n<\/ul>\n\n\n\n

    UL489 \u4e0d\u662f\u5148\u505a\u77ed\u8def\u8bd5\u9a8c\uff0c\u518d\u8865\u51e0\u4e2a\u5e38\u89c4\u9879\u76ee\u3002\u76f8\u53cd\uff0c\u6e29\u5347\u3001\u6821\u51c6\u548c\u5bff\u547d\u672c\u8eab\u5c31\u662f\u4e3b\u7ebf\u3002<\/p>\n\n\n\n

    2 UL489\u7684\u6e29\u5347<\/strong><\/p>\n\n\n\n

    UL\u7684\u6e29\u5347\u4e0d\u662f\u8131\u79bb\u5b89\u88c5\u6761\u4ef6\u53bb\u6d4b\uff0c\u800c\u662f\u5728\u89c4\u5b9a\u5bfc\u4f53\u6761\u4ef6<\/strong>\u4e0b\u6d4b\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5b83\u9a8c\u8bc1\u7684\u662f\u66f4\u63a5\u8fd1\u5b9e\u9645\u63a5\u7ebf\u72b6\u6001\u4e0b\u7684\u53d1\u70ed\u8868\u73b0\u3002<\/p>\n\n\n\n

    \"\"<\/figure>\n\n\n\n

    3 UL489\u7684<\/strong>\u6821\u51c6<\/strong><\/p>\n\n\n\n

      \n
    • 25\u00b0C \u4e0b 200% \u6821\u51c6\uff0c\u8981\u6c42\u65ad\u8def\u5668\u5728\u89c4\u5b9a\u65f6\u95f4\u5185\u8131\u6263\u3002<\/li>\n\n\n\n
    • 25\u00b0C \u4e0b 135% \u6821\u51c6\uff0c\u989d\u5b9a\u7535\u6d41\u5927\u4e8e 50 A \u7684\u65ad\u8def\u5668\u5e94\u5728 2 \u5c0f\u65f6\u5185\u8131\u6263\u3002<\/li>\n\n\n\n
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      4 UL489\u7684<\/strong>\u5bff\u547d<\/strong><\/p>\n\n\n\n

      \u4e0d\u540c\u58f3\u67b6\u7684\u8981\u6c42\u5dee\u522b\u5f88\u5927<\/p>\n\n\n\n

      \"\"<\/figure>\n\n\n\n

      5 Y sequence\u548c<\/strong>Z sequence<\/strong><\/h2>\n\n\n\n

       UL 489 \u6700\u6709\u7279\u70b9\u7684\uff0c\u662f\u4e24\u7ec4\u5206\u65ad\u80fd\u529b\u6570\u636e\u3002Y\u7684\u91cd\u70b9\u662f\u4e09\u6781\u6574\u4f53\u5206\u65ad<\/p>\n\n\n\n

      \"\"<\/figure>\n\n\n\n

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      \"\"<\/figure>\n\n\n\n

      6 UL489\u9ad8\u53ef\u7528\u6545\u969c\u5206\u65ad\u80fd\u529b<\/strong><\/h2>\n\n\n\n

      High fault current\u3002\u5b83\u4e0d\u662f\u5e38\u89c4\u7684\u6807\u51c6 sequence\uff0c\u800c\u662f\u9644\u52a0\u8bd5\u9a8c\u3002\u903b\u8f91\u662f\u5148\u901a\u8fc7\u5168\u90e8\u6807\u51c6\u8bd5\u9a8c\uff0c\u5982\u679c\u8fd8\u8981\u7533\u62a5\u9ad8\u4e8e\u6807\u51c6\u503c\u7684\u6545\u969c\u5206\u65ad\u80fd\u529b\uff0c\u518d\u7ee7\u7eed\u505a\u8fd9\u4e00\u7ec4\u9a8c\u8bc1\u3002<\/h2>\n\n\n\n
        \n
      • \u5148\u91cd\u65b0\u505a\u4e00\u6b21 200% \u6821\u51c6\u3002<\/li>\n\n\n\n
      • \u518d\u5728\u9ad8\u4e8e\u6807\u51c6\u503c\u7684\u6545\u969c\u7535\u6d41\u4e0b\u5b8c\u6210\u89c4\u5b9a\u5f00\u65ad\u52a8\u4f5c\u3002<\/li>\n\n\n\n
      • \u5982\u679c\u7535\u6d41\u5927\u4e8e 2000 A\uff0c\u529f\u7387\u56e0\u6570\u53d6 0.15 \u5230 0.2\uff0c\u6ede\u540e\u3002<\/li>\n\n\n\n
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        IEC \u7684\u7ec4\u7ec7\u65b9\u5f0f\u548c UL \u5f88\u4e0d\u4e00\u6837\u3002\u5b83\u4e0d\u662f\u5148\u6392\u4e00\u6761\u5b8c\u6574\u7684\u4ea7\u54c1\u9a8c\u8bc1\u94fe\uff0c\u800c\u662f\u5148\u628a\u65ad\u8def\u5668\u5728\u7cfb\u7edf\u4e2d\u7684\u80fd\u529b\u5b9a\u4e49\u6e05\u695a\u3002<\/p>\n\n\n\n

        1 IEC\u4f53\u7cfb\u91cc\u7684\u51e0\u4e2a\u5173\u952e\u6982\u5ff5<\/strong><\/p>\n\n\n\n

          \n
        • A\u7c7b\uff1a<\/strong>\u4e0d\u4e13\u95e8\u4e3a\u9009\u62e9\u6027\u914d\u5408\u8bbe\u8ba1<\/li>\n\n\n\n
        • B\u7c7b\uff1a<\/strong>\u4e3a\u9009\u62e9\u6027\u914d\u5408\u8bbe\u8ba1\uff0c\u8981\u6c42\u5177\u5907 Icw<\/li>\n\n\n\n
        • Icu\uff1a<\/strong>\u6781\u9650\u5206\u65ad\u80fd\u529b\uff0c\u6700\u5927\u80fd\u65ad\u5230\u54ea\u91cc<\/li>\n\n\n\n
        • Ics\uff1a<\/strong>\u8fd0\u884c\u5206\u65ad\u80fd\u529b\uff0c\u65ad\u5b8c\u4ee5\u540e\u8fd8\u80fd\u4e0d\u80fd\u7ee7\u7eed\u4f7f\u7528<\/li>\n\n\n\n
        • Icw\uff1a<\/strong>\u77ed\u65f6\u8010\u53d7\u80fd\u529b\uff0c\u80fd\u4e0d\u80fd\u627f\u62c5\u77ed\u5ef6\u65f6\u548c\u9009\u62e9\u6027\u914d\u5408<\/li>\n<\/ul>\n\n\n\n

          2 IEC \u7684\u56db\u7ec4\u8bd5\u9a8c<\/strong><\/p>\n\n\n\n

          \"\"<\/figure>\n\n\n\n

          \u548cUL\u76f8\u6bd4IEC\u4e0d\u662f\u6cbf\u7740\u4e00\u53f0\u4ea7\u54c1\u7684\u4f7f\u7528\u8fc7\u7a0b\u5f80\u4e0b\u8d70\uff0c\u800c\u662f\u628a\u80fd\u529b\u62c6\u5f00\u5206\u522b\u9a8c\u8bc1\u3002\u8fd9\u4e5f\u662f\u5b83\u66f4\u9002\u5408\u505a\u7cfb\u7edf\u9009\u578b\u548c\u4e0a\u4e0b\u7ea7\u914d\u5408\u5206\u6790\u7684\u539f\u56e0\u3002<\/h3>\n\n\n\n

          3 IEC\u8fd8\u628a\u9694\u79bb\u5206\u5f00\u5904\u7406<\/strong><\/h2>\n\n\n\n

          IEC\u4f53\u7cfb\u91cc\uff0c\u80fd\u5f00\u65ad\u548c\u80fd\u9694\u79bb\u4e0d\u662f\u4e00\u56de\u4e8b\u3002\u65ad\u8def\u5668\u5982\u679c\u5ba3\u79f0\u5177\u5907\u9694\u79bb\u529f\u80fd\uff0c\u5c31\u4e0d\u53ea\u662f\u770b\u80fd\u4e0d\u80fd\u5207\u65ad\u6545\u969c\u7535\u6d41\uff0c\u8fd8\u8981\u770b\u65ad\u5f00\u72b6\u6001\u4e0b\u7684\u89e6\u5934\u95f4\u8ddd\u3001\u51b2\u51fb\u8010\u538b\u548c\u6f0f\u7535\u6d41\u7b49\u8981\u6c42\u3002\u8fd9\u4e5f\u4f53\u73b0\u4e86 IEC \u7684\u7279\u70b9\u3002\u5b83\u4e0d\u4ec5\u8981\u9a8c\u8bc1\u65ad\u8def\u5668\u80fd\u4e0d\u80fd\u5de5\u4f5c\uff0c\u8fd8\u8981\u628a\u6bcf\u4e00\u79cd\u529f\u80fd\u8fb9\u754c\u5206\u522b\u5b9a\u4e49\u6e05\u695a\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

          \u5317\u7f8e\u5851\u58f3\u65ad\u8def\u5668\u4e3b\u8981\u6309\u00a0UL 489\uff0c\u4e2d\u56fd\u53ca\u6b27\u6d32\u4f53\u7cfb\u4e3b\u8981\u6309IEC 60947-2\u3002\u672c\u6587\u53c2\u8003\u65bd\u8010\u5fb7\u4e00\u4efd\u65e9\u671f\u8d44\u6599\uff0c\u867d […]<\/p>\n","protected":false},"author":1,"featured_media":5181,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,32,11,3],"tags":[],"class_list":["post-5180","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-beimeixingwen","category-32","category-ouzhouxingwen","category-news"],"_links":{"self":[{"href":"http:\/\/www.tmro.cn\/index.php?rest_route=\/wp\/v2\/posts\/5180","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.tmro.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.tmro.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.tmro.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.tmro.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5180"}],"version-history":[{"count":3,"href":"http:\/\/www.tmro.cn\/index.php?rest_route=\/wp\/v2\/posts\/5180\/revisions"}],"predecessor-version":[{"id":5193,"href":"http:\/\/www.tmro.cn\/index.php?rest_route=\/wp\/v2\/posts\/5180\/revisions\/5193"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.tmro.cn\/index.php?rest_route=\/wp\/v2\/media\/5181"}],"wp:attachment":[{"href":"http:\/\/www.tmro.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5180"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.tmro.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5180"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.tmro.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5180"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}