{"id":50307,"date":"2026-03-23T05:45:11","date_gmt":"2026-03-23T05:45:11","guid":{"rendered":"https:\/\/www.kdmsteel.com\/?p=50307"},"modified":"2026-03-23T05:45:11","modified_gmt":"2026-03-23T05:45:11","slug":"top-electrical-junction-box-rules","status":"publish","type":"post","link":"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/","title":{"rendered":"\u4e3a\u4e86\u5b89\u5168\u548c\u5408\u89c4\uff0c\u60a8\u5fc5\u987b\u9075\u5b88\u7684\u7535\u6c14\u63a5\u7ebf\u76d2\u91cd\u8981\u89c4\u5219"},"content":{"rendered":"<p>\u4f60\u662f\u5426\u66fe\u56e0\u63a5\u7ebf\u76d2\u4e2d\u770b\u4f3c\u65e0\u5173\u7d27\u8981\u7684\u9519\u8bef\u800c\u5bfc\u81f4\u7535\u6c14\u6d4b\u8bd5\u5931\u8d25\uff1f\u4f60\u5e76\u4e0d\u5b64\u5355\u3002\u7f8e\u56fd\u56fd\u5bb6\u7535\u6c14\u89c4\u8303 (NEC) \u53ef\u80fd\u6666\u6da9\u96be\u61c2\uff0c\u4f46\u9075\u5b88\u63a5\u7ebf\u76d2\u7684\u76f8\u5173\u89c4\u5b9a\u5bf9\u4e8e\u5b89\u5168\u548c\u5408\u89c4\u81f3\u5173\u91cd\u8981\u3002\u672c\u6307\u5357\u5c06\u8be6\u7ec6\u89e3\u8bfb\u7535\u6c14\u76f8\u5173\u77e5\u8bc6\u3002 <a href=\"https:\/\/www.kdmsteel.com\/zh\/\u63a5\u7ebf\u76d2-nec-\u89c4\u8303\u6807\u51c6\/\"><strong><b>\u6731<\/b><b>\u63a7\u5236\u76d2 NEC \u89c4\u8303\u6807\u51c6<\/b><\/strong><\/a>\u00a0\u4f60\u9700\u8981\u9075\u5faa\u8fd9\u4e9b\u89c4\u5219\uff0c\u4ee5\u786e\u4fdd\u5de5\u4f5c\u6b63\u786e\u5b8c\u6210\uff0c\u4fdd\u969c\u56e2\u961f\u5b89\u5168\uff0c\u5e76\u8f7b\u677e\u901a\u8fc7\u6240\u6709\u6d4b\u8bd5\u3002.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u76ee\u5f55<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"\u5207\u6362\u76ee\u5f55\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\u5207\u6362<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#What_Is_an_Electrical_Junction_Box\" >\u4ec0\u4e48\u662f\u7535\u6c14\u63a5\u7ebf\u76d2\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Top_12_Electrical_Junction_Box_Rules_You_Must_Follow\" >\u4f60\u5fc5\u987b\u9075\u5b88\u768412\u6761\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" 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href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Always_Keep_Junction_Boxes_Accessible\" >\u59cb\u7ec8\u4fdd\u6301\u63a5\u7ebf\u76d2\u6613\u4e8e\u63a5\u8fd1<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Install_Proper_Covers_on_All_Junction_Boxes\" >\u5728\u6240\u6709\u63a5\u7ebf\u76d2\u4e0a\u5b89\u88c5\u5408\u9002\u7684\u76d6\u5b50<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Ensure_Proper_Grounding\" >\u786e\u4fdd\u6b63\u786e\u63a5\u5730<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Use_the_Right_Type_of_Junction_Box\" >\u4f7f\u7528\u6b63\u786e\u7c7b\u578b\u7684\u63a5\u7ebf\u76d2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Follow_Clearance_and_Working_Space_Requirements\" >\u9075\u5b88\u51c0\u7a7a\u548c\u5de5\u4f5c\u7a7a\u95f4\u8981\u6c42<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Secure_and_Properly_Mount_the_Junction_Box\" >\u7262\u56fa\u4e14\u6b63\u786e\u5b89\u88c5\u63a5\u7ebf\u76d2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Use_Approved_Connectors_and_Fittings\" >\u4f7f\u7528\u7ecf\u8ba4\u8bc1\u7684\u8fde\u63a5\u5668\u548c\u914d\u4ef6<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Protect_Junction_Boxes_in_Damp_or_Hazardous_Locations\" >\u4fdd\u62a4\u6f6e\u6e7f\u6216\u5371\u9669\u573a\u6240\u7684\u63a5\u7ebf\u76d2<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Do_Not_Compromise_Fire_Safety_Requirements\" >\u4e0d\u5f97\u964d\u4f4e\u6d88\u9632\u5b89\u5168\u8981\u6c42<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Common_Electrical_Junction_Box_Mistakes_to_Avoid\" >\u907f\u514d\u5e38\u89c1\u7684\u7535\u6c14\u63a5\u7ebf\u76d2\u9519\u8bef<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Overcrowding_Wires\" >\u7535\u7ebf\u8fc7\u5bc6<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Hidden_or_Buried_Boxes\" >\u9690\u85cf\u6216\u57cb\u85cf\u7684\u76d2\u5b50<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Missing_Covers\" >\u5c01\u9762\u7f3a\u5931<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Poor_Grounding\" >\u63a5\u5730\u4e0d\u826f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Using_Wrong_Box_Type\" >\u4f7f\u7528\u4e86\u9519\u8bef\u7684\u6846\u7c7b\u578b<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Loose_Mounting\" >\u677e\u6563\u5b89\u88c5<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Electrical_Junction_Box_Installation_Best_Practices\" >\u7535\u6c14\u63a5\u7ebf\u76d2\u5b89\u88c5\u6700\u4f73\u5b9e\u8df5<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Plan_Box_Placement_before_Wiring\" >\u5e03\u7ebf\u524d\u786e\u5b9a\u63a5\u7ebf\u76d2\u4f4d\u7f6e<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Label_Circuits_Clearly\" >\u6e05\u6670\u6807\u6ce8\u7535\u8def<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Leave_Extra_Wire_Length\" >\u9884\u7559\u989d\u5916\u7684\u7535\u7ebf\u957f\u5ea6<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Use_High-Quality_Enclosures\" >\u4f7f\u7528\u9ad8\u8d28\u91cf\u5916\u58f3<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Follow_Manufacturer_Instructions\" >\u8bf7\u9075\u5faa\u5236\u9020\u5546\u8bf4\u660e\u3002<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Conclusion\" >\u7ed3\u8bba<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#FAQs\" >\u5e38\u89c1\u95ee\u9898\u89e3\u7b54<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Can_you_legally_hide_a_junction_box_behind_drywall_or_ceiling\" >\u662f\u5426\u53ef\u4ee5\u5408\u6cd5\u5730\u5c06\u63a5\u7ebf\u76d2\u9690\u85cf\u5728\u77f3\u818f\u677f\u6216\u5929\u82b1\u677f\u540e\u9762\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#How_many_wires_are_allowed_inside_a_junction_box\" >\u63a5\u7ebf\u76d2\u5185\u6700\u591a\u5141\u8bb8\u5bb9\u7eb3\u591a\u5c11\u6839\u7535\u7ebf\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Do_all_junction_boxes_need_a_cover\" >\u6240\u6709\u63a5\u7ebf\u76d2\u90fd\u9700\u8981\u76d6\u5b50\u5417\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Are_plastic_junction_boxes_safer_than_metal_ones\" >\u5851\u6599\u63a5\u7ebf\u76d2\u6bd4\u91d1\u5c5e\u63a5\u7ebf\u76d2\u66f4\u5b89\u5168\u5417\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#What_are_the_clearance_requirements_around_junction_boxes\" >\u63a5\u7ebf\u76d2\u5468\u56f4\u7684\u51c0\u7a7a\u8981\u6c42\u662f\u4ec0\u4e48\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Is_labeling_required_inside_junction_boxes\" >\u63a5\u7ebf\u76d2\u5185\u90e8\u662f\u5426\u9700\u8981\u8d34\u6807\u7b7e\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#What_is_the_difference_between_a_junction_box_and_an_outlet_box\" >\u63a5\u7ebf\u76d2\u548c\u51fa\u7ebf\u76d2\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-37\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Can_you_reuse_an_old_junction_box_during_renovations\" >\u88c5\u4fee\u65f6\u53ef\u4ee5\u91cd\u590d\u4f7f\u7528\u65e7\u7684\u63a5\u7ebf\u76d2\u5417\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-38\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/#Are_junction_boxes_required_in_industrial_installations\" >\u5de5\u4e1a\u88c5\u7f6e\u4e2d\u662f\u5426\u9700\u8981\u63a5\u7ebf\u76d2\uff1f<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_an_Electrical_Junction_Box\"><\/span><strong><b>\u4ec0\u4e48\u662f\u7535\u6c14\u63a5\u7ebf\u76d2\uff1f<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u8003\u8651\u4e00\u4e2a\u7535\u6c14 <a href=\"https:\/\/www.kdmsteel.com\/zh\/\u4ec0\u4e48\u662f\u63a5\u7ebf\u76d2\/\"><strong><b>\u63a5\u7ebf\u76d2<\/b><\/strong><\/a>\u00a0\u5b83\u582a\u79f0\u4efb\u4f55\u7ebf\u8def\u7cfb\u7edf\u4e2d\u7684\u201c\u82f1\u96c4\u201d\u3002\u6240\u6709\u7535\u7ebf\u63a5\u5934\u548c\u8fde\u63a5\u70b9\u90fd\u5b89\u5168\u5730\u5b58\u653e\u5728\u8fd9\u4e2a\u901a\u5e38\u7531\u91d1\u5c5e\u6216\u5851\u6599\u5236\u6210\u7684\u63a5\u7ebf\u76d2\u4e2d\u3002\u4f5c\u4e3a\u4e00\u9879\u9632\u706b\u63aa\u65bd\uff0c\u5b83\u7684\u4e3b\u8981\u4f5c\u7528\u662f\u9632\u6b62\u706b\u82b1\u3001\u9ad8\u6e29\u548c\u77ed\u8def\u5f15\u53d1\u5efa\u7b51\u7269\u5185\u7684\u706b\u707e\u3002\u65e0\u8bba\u60a8\u662f\u5728\u4e3a\u4f4f\u5b85\u8fd8\u662f\u5de5\u5382\u5e03\u7ebf\uff0c\u8fd9\u4e9b\u63a5\u7ebf\u76d2\u5bf9\u4e8e\u786e\u4fdd\u7535\u6c14\u7f51\u7edc\u7684\u5b89\u5168\u548c\u6709\u5e8f\u90fd\u81f3\u5173\u91cd\u8981\u3002.<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49441\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-2.jpg\" alt=\"\u7535\u6c14\u63a5\u7ebf\u76d2\uff082\uff09\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-2.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-2-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-2-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-2-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Top_12_Electrical_Junction_Box_Rules_You_Must_Follow\"><\/span><strong><b>\u4f60\u5fc5\u987b\u9075\u5b88\u768412\u6761\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Always_Use_a_Junction_Box_for_Wire_Splices\"><\/span><strong><b>\u7535\u7ebf\u8fde\u63a5\u65f6\u52a1\u5fc5\u4f7f\u7528\u63a5\u7ebf\u76d2<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u6839\u636e\u7f8e\u56fd\u56fd\u5bb6\u7535\u6c14\u89c4\u8303 (NEC) 300.15 \u7684\u89c4\u5b9a\uff0c\u6240\u6709\u7535\u7ebf\u63a5\u5934\u90fd\u5fc5\u987b\u653e\u7f6e\u5728\u5408\u9002\u7684\u63a5\u7ebf\u76d2\u5185\u3002\u88f8\u9732\u8fde\u63a5\u5904\u7684\u677e\u52a8\u7aef\u5b50\u53ef\u80fd\u4f1a\u4ea7\u751f\u706b\u82b1\uff0c\u5f15\u71c3\u9644\u8fd1\u7684\u6750\u6599\uff0c\u9020\u6210\u4e25\u91cd\u7684\u706b\u707e\u9690\u60a3\u3002\u8fd9\u4e9b\u6f5c\u5728\u7684\u6545\u969c\u90fd\u5305\u542b\u5728\u6b63\u786e\u5b89\u88c5\u7684\u63a5\u7ebf\u76d2\u5185\uff0c\u4ece\u800c\u4fdd\u62a4\u5efa\u7b51\u7269\u7ed3\u6784\u4ee5\u53ca\u5c45\u4f4f\u6216\u5de5\u4f5c\u5728\u5176\u4e2d\u7684\u4eba\u5458\u7684\u5b89\u5168\u3002\u8fd9\u6761\u57fa\u672c\u89c4\u5219\u6ca1\u6709\u4efb\u4f55\u4f8b\u5916\uff1a\u53ea\u8981\u8fde\u63a5\u4e24\u6839\u7535\u7ebf\uff0c\u5c31\u5fc5\u987b\u4f7f\u7528\u7b26\u5408\u89c4\u8303\u7684\u63a5\u7ebf\u76d2\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ensure_Proper_Box_Sizing_Box_Fill_Capacity_Rule\"><\/span><strong><b>\u786e\u4fdd\u7eb8\u7bb1\u5c3a\u5bf8\u5408\u9002\uff08\u7eb8\u7bb1\u586b\u5145\u5bb9\u91cf\u89c4\u5219\uff09<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>NEC 314.16 \u8981\u6c42\u5bf9\u63a5\u7ebf\u76d2\u7684\u586b\u5145\u91cf\u8fdb\u884c\u5177\u4f53\u4f30\u7b97\uff0c\u4ee5\u907f\u514d\u5371\u9669\u7684\u8fc7\u5ea6\u62e5\u6324\u3002\u8fc7\u591a\u7684\u5bfc\u7ebf\u4f1a\u4ea7\u751f\u70ed\u91cf\uff0c\u5e76\u589e\u52a0\u8bbe\u5907\u653e\u7f6e\u7684\u96be\u5ea6\uff0c\u8fd9\u53ef\u80fd\u4f1a\u635f\u574f\u5bfc\u7ebf\u7684\u7edd\u7f18\u5c42\u3002\u60a8\u9700\u8981\u8ba1\u7b97\u63a5\u7ebf\u76d2\u7684\u5bb9\u79ef\uff08\u7acb\u65b9\u82f1\u5bf8\uff09\uff0c\u5e76\u5c06\u6240\u6709\u5bfc\u7ebf\u3001\u8bbe\u5907\u548c\u914d\u4ef6\u90fd\u8ba1\u7b97\u5728\u5185\u3002\u5236\u9020\u5546\u4f1a\u5728\u6bcf\u4e2a\u63a5\u7ebf\u76d2\u7684\u5185\u4fa7\u6807\u660e\u5bb9\u91cf\uff1b\u52a1\u5fc5\u67e5\u770b\u8fd9\u4e9b\u6570\u503c\u3002\u5f53\u4f30\u7b97\u503c\u63a5\u8fd1\u6700\u5927\u5bb9\u91cf\u65f6\uff0c\u9009\u62e9\u66f4\u5927\u7684\u63a5\u7ebf\u76d2\u662f\u660e\u667a\u4e4b\u4e3e\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Maintain_Minimum_Free_Conductor_Length\"><\/span><strong><b>\u4fdd\u6301\u6700\u5c0f\u81ea\u7531\u5bfc\u4f53\u957f\u5ea6<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u6839\u636e\u89c4\u5b9a\uff0c\u88f8\u9732\u7684\u7535\u7ebf\u5fc5\u987b\u4ece\u63a5\u7ebf\u76d2\u5f00\u53e3\u5904\u81f3\u5c11\u5ef6\u4f38\u516d\u82f1\u5bf8\u3002 <a href=\"https:\/\/allstarce.com\/wp-content\/uploads\/2016\/12\/2017-NEC-Code-Ch-3-Article-300-2.pdf\"><strong><b>NEC 300.14<\/b><\/strong><\/a>. \u8be5\u6807\u51c6\u786e\u4fdd\u6709\u8db3\u591f\u7684\u7a7a\u95f4\u8fdb\u884c\u53ef\u9760\u7684\u63a5\u7ebf\u3001\u826f\u597d\u7684\u8fde\u63a5\uff0c\u5e76\u9884\u7559\u672a\u6765\u53ef\u80fd\u53d1\u751f\u7684\u53d8\u66f4\u7a7a\u95f4\u3002\u5728\u7ef4\u62a4\u8fc7\u7a0b\u4e2d\uff0c\u5bf9\u4e8e\u4f7f\u7528\u5927\u578b\u673a\u7bb1\u7684\u5de5\u4e1a\u5e94\u7528\u800c\u8a00\uff0c\u8fd9\u9879\u8981\u6c42\u5c24\u4e3a\u91cd\u8981\u3002\u5728\u7c97\u88c5\u9636\u6bb5\u8fdb\u884c\u7cbe\u786e\u6d4b\u91cf\uff0c\u53ef\u4ee5\u907f\u514d\u65e5\u540e\u5de5\u4f5c\u533a\u57df\u53d8\u5f97\u96be\u4ee5\u5904\u7406\u4e14\u5b58\u5728\u5b89\u5168\u9690\u60a3\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Always_Keep_Junction_Boxes_Accessible\"><\/span><strong><b>\u59cb\u7ec8\u4fdd\u6301\u63a5\u7ebf\u76d2\u6613\u4e8e\u63a5\u8fd1<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u6839\u636e\u7f8e\u56fd\u56fd\u5bb6\u7535\u6c14\u89c4\u8303 (NEC) 314.29 \u7684\u89c4\u5b9a\uff0c\u6240\u6709\u5f00\u5173\u76d2\u5fc5\u987b\u5728\u4e0d\u62c6\u5378\u4efb\u4f55\u5efa\u7b51\u6784\u4ef6\u7684\u60c5\u51b5\u4e0b\u5747\u53ef\u89e6\u53ca\u3002\u5c06\u5f00\u5173\u76d2\u9690\u85cf\u5728\u77f3\u818f\u677f\u3001\u6c38\u4e45\u6027\u9576\u677f\u6216\u540a\u9876\u7ec4\u4ef6\u540e\u65b9\u662f\u8fdd\u53cd\u89c4\u5b9a\u7684\u3002\u4e3a\u4e86\u4fbf\u4e8e\u65e5\u540e\u7684\u7ef4\u4fee\u3001\u6545\u969c\u6392\u9664\u548c\u7cfb\u7edf\u53d8\u66f4\uff0c\u6240\u6709\u63a5\u7ebf\u548c\u8fde\u63a5\u70b9\u90fd\u5fc5\u987b\u6613\u4e8e\u89e6\u53ca\u3002\u5c06\u5f00\u5173\u76d2\u5b89\u88c5\u5728\u6613\u4e8e\u6253\u5f00\u76d6\u677f\u7684\u4f4d\u7f6e\u3002\u8fd9\u5c06\u786e\u4fdd\u5b83\u4eec\u80fd\u591f\u6ee1\u8db3\u672a\u6765\u7535\u6c14\u5de5\u7a0b\u7684\u9700\u6c42\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Install_Proper_Covers_on_All_Junction_Boxes\"><\/span><strong><b>\u5728\u6240\u6709\u63a5\u7ebf\u76d2\u4e0a\u5b89\u88c5\u5408\u9002\u7684\u76d6\u5b50<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u5de5\u4f5c\u5b8c\u6210\u540e\uff0c\u6bcf\u4e2a<strong><b>\u00a0<\/b><\/strong><a href=\"https:\/\/www.kdmsteel.com\/zh\/\u63a5\u7ebf\u76d2\u7c7b\u578b\/\"><strong><b>\u4e0d\u540c\u7c7b\u578b\u7684\u63a5\u7ebf\u76d2<\/b><\/strong><\/a>\u00a0\u5fc5\u987b\u6309\u7167NEC 314.25\u7684\u89c4\u5b9a\u5b89\u88c5\u5408\u9002\u7684\u76d6\u677f\u3001\u9762\u677f\u6216\u9632\u62a4\u7f69\u3002\u76d6\u677f\u53ef\u4ee5\u9632\u6b62\u7535\u5f27\u6269\u6563\uff0c\u907f\u514d\u4eba\u5458\u8bef\u89e6\u5e26\u7535\u90e8\u4ef6\uff0c\u5e76\u9632\u6b62\u6c61\u67d3\u7269\u8fdb\u5165\u3002\u9009\u62e9\u87ba\u4e1d\u65f6\u52a1\u5fc5\u8c28\u614e\u2014\u2014\u77f3\u818f\u677f\u87ba\u4e1d\u4e0d\u9002\u7528\u3002\u76d6\u677f\u53ea\u80fd\u4f7f\u7528\u4e0e\u63a5\u7ebf\u76d2\u87ba\u7eb9\u89c4\u683c\u76f8\u5339\u914d\u7684\u673a\u87ba\u9489\u6216\u5236\u9020\u5546\u63d0\u4f9b\u7684\u7d27\u56fa\u4ef6\u8fdb\u884c\u56fa\u5b9a\u3002\u8fd9\u5c06\u786e\u4fdd\u76d6\u677f\u7684\u7262\u56fa\u6027\u548c\u957f\u671f\u53ef\u9760\u6027\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Ensure_Proper_Grounding\"><\/span><strong><b>\u786e\u4fdd\u6b63\u786e\u63a5\u5730<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u6839\u636e\u7f8e\u56fd\u56fd\u5bb6\u7535\u6c14\u89c4\u8303 (NEC) 250.148\uff0c\u6240\u6709\u8bbe\u5907\u7684\u63a5\u5730\u5bfc\u4f53\u5fc5\u987b\u8fde\u63a5\u5e76\u7262\u56fa\u5730\u8fde\u63a5\u5230\u91d1\u5c5e\u63a5\u7ebf\u76d2\u4e0a\u3002\u8fd9\u6837\u5c31\u5f62\u6210\u4e86\u4e00\u6761\u6545\u969c\u7535\u6d41\u901a\u8def\uff0c\u53ef\u4ee5\u5c06\u5371\u9669\u80fd\u91cf\u5b89\u5168\u5730\u5bfc\u5165\u5927\u5730\u3002\u8fde\u63a5\u65f6\uff0c\u9700\u8981\u4f7f\u7528\u4e13\u7528\u7684\u7eff\u8272\u63a5\u5730\u87ba\u9489\u3001\u7b26\u5408\u89c4\u8303\u7684\u63a5\u5730\u5939\u6216\u5176\u4ed6\u5141\u8bb8\u7684\u63a5\u5730\u88c5\u7f6e\u3002\u5373\u4f7f\u5851\u6599\u63a5\u7ebf\u76d2\u672c\u8eab\u4e0d\u5bfc\u7535\uff0c\u653e\u7f6e\u5728\u5176\u4e2d\u7684\u4efb\u4f55\u7535\u5b50\u5143\u4ef6\u4ecd\u7136\u9700\u8981\u901a\u8fc7\u7535\u8def\uff08\u5373\u63a5\u5730\u7ebf\uff09\u63a5\u5730\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Use_the_Right_Type_of_Junction_Box\"><\/span><strong><b>\u4f7f\u7528\u6b63\u786e\u7c7b\u578b\u7684\u63a5\u7ebf\u76d2<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u6839\u636e\u7f8e\u56fd\u56fd\u5bb6\u7535\u6c14\u89c4\u8303 (NEC) 314.15 \u53ca\u76f8\u5173\u6761\u6b3e\uff0c\u60a8\u7684\u63a5\u7ebf\u76d2\u5fc5\u987b\u7b26\u5408\u5176\u7528\u9014\u5e76\u7b26\u5408\u89c4\u8303\u3002\u6807\u51c6\u63a5\u7ebf\u76d2\u65e0\u6cd5\u627f\u53d7\u632f\u52a8\u548c\u52a8\u6001\u8f7d\u8377\uff0c\u56e0\u6b64\u5b89\u88c5\u540a\u6247\u65f6\u5fc5\u987b\u4f7f\u7528\u6807\u6709\u201c\u9002\u7528\u4e8e\u540a\u6247\u652f\u6491\u201d\u7684\u63a5\u7ebf\u76d2\u3002\u591a\u96e8\u5730\u533a\u9700\u8981\u9632\u96e8\u7f69\uff0c\u4ee5\u9632\u6b62\u96e8\u6c34\u6e17\u5165\u3002\u5982\u679c\u9009\u62e9\u4e86\u9519\u8bef\u7684\u63a5\u7ebf\u76d2\uff0c\u60a8\u7684\u5de5\u5177\u4f1a\u635f\u574f\uff0c\u91d1\u5c5e\u4f1a\u751f\u9508\uff0c\u800c\u4e14\u60a8\u80af\u5b9a\u4f1a\u5728\u68c0\u67e5\u65f6\u8fdd\u53cd\u89c4\u5b9a\u3002.<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49444\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-5.jpg\" alt=\"\u7535\u6c14\u63a5\u7ebf\u76d2\uff085\uff09\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-5.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-5-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-5-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-5-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Follow_Clearance_and_Working_Space_Requirements\"><\/span><strong><b>\u9075\u5b88\u51c0\u7a7a\u548c\u5de5\u4f5c\u7a7a\u95f4\u8981\u6c42<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u6839\u636e\u7f8e\u56fd\u56fd\u5bb6\u7535\u6c14\u89c4\u8303 (NEC) 314.29 \u7684\u89c4\u5b9a\uff0c\u63a5\u7ebf\u76d2\u5fc5\u987b\u6613\u4e8e\u68c0\u4fee\uff1b\u6839\u636e NEC 110.26 \u7684\u89c4\u5b9a\uff0c\u5927\u578b\u8bbe\u5907\u5fc5\u987b\u7ecf\u8fc7\u6d4b\u8bd5\u3002\u5b58\u50a8\u88c5\u7f6e\u3001\u9762\u677f\u6216\u6c38\u4e45\u6027\u5b89\u88c5\u4e0d\u5f97\u59a8\u788d\u6253\u5f00\u76d6\u677f\u6216\u8fdb\u884c\u7ef4\u4fee\u3002\u5728\u5de5\u4e1a\u73af\u5883\u4e2d\u4f7f\u7528 KDM Steel \u91cd\u578b\u5916\u58f3\u65f6\uff0c\u5fc5\u987b\u89c4\u5212\u597d\u5de5\u4f5c\u7a7a\u95f4\uff0c\u4ee5\u4fbf\u7ef4\u4fee\u4eba\u5458\u80fd\u591f\u5feb\u901f\u89e3\u51b3\u95ee\u9898\u3002\u5982\u679c\u76d6\u677f\u64cd\u4f5c\u53d7\u963b\uff0c\u5373\u4f7f\u91c7\u53d6\u4e86\u5176\u4ed6\u5408\u89c4\u63aa\u65bd\uff0c\u8be5\u5b89\u88c5\u4e5f\u4e0d\u7b26\u5408\u89c4\u8303\u8981\u6c42\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Secure_and_Properly_Mount_the_Junction_Box\"><\/span><strong><b>\u7262\u56fa\u4e14\u6b63\u786e\u5b89\u88c5\u63a5\u7ebf\u76d2<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u6839\u636e\u7f8e\u56fd\u56fd\u5bb6\u7535\u6c14\u89c4\u8303 (NEC) 314.23\uff0c\u6240\u6709\u63a5\u7ebf\u76d2\u5fc5\u987b\u7262\u56fa\u4e14\u72ec\u7acb\u5730\u56fa\u5b9a\u5728\u5efa\u7b51\u5730\u57fa\u4e0a\u3002\u4ec5\u9760\u77f3\u818f\u677f\u65e0\u6cd5\u63d0\u4f9b\u8db3\u591f\u7684\u652f\u6491\uff0c\u5c5e\u4e8e\u8fdd\u89c4\u884c\u4e3a\u3002\u65b0\u5efa\u5efa\u7b51\u7684\u63a5\u7ebf\u76d2\u5fc5\u987b\u4f7f\u7528\u5de5\u5382\u9884\u5236\u7684\u5b89\u88c5\u652f\u67b6\u76f4\u63a5\u56fa\u5b9a\u5728\u7acb\u67f1\u6216\u6258\u6881\u4e0a\u3002\u5bf9\u4e8e\u6539\u9020\u9879\u76ee\uff0c\u5219\u9700\u8981\u4f7f\u7528\u5408\u9002\u7684\u6539\u9020\u4e13\u7528\u63a5\u7ebf\u76d2\u548c\u76f8\u5e94\u7684\u5939\u5177\u3002\u5728\u5de5\u4e1a\u73af\u5883\u4e2d\uff0c\u94f8\u94c1\u63a5\u7ebf\u76d2\u9700\u8981\u4f7f\u7528\u81a8\u80c0\u87ba\u6813\u6216\u7a7f\u900f\u87ba\u6813\u56fa\u5b9a\u5728\u5b9e\u5fc3\u94a2\u6750\u4e0a\u3002\u8fd9\u6837\u53ef\u4ee5\u786e\u4fdd\u63a5\u7ebf\u76d2\u957f\u671f\u4fdd\u6301\u7a33\u5b9a\uff0c\u5e76\u4fdd\u62a4\u5bfc\u7ebf\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Use_Approved_Connectors_and_Fittings\"><\/span><strong><b>\u4f7f\u7528\u7ecf\u8ba4\u8bc1\u7684\u8fde\u63a5\u5668\u548c\u914d\u4ef6<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u6bcf\u6839\u63a5\u5165\u63a5\u7ebf\u76d2\u7684\u7535\u7ebf\u90fd\u9700\u8981\u5408\u9002\u7684\u63a5\u5934\u6216\u8fde\u63a5\u5668\u3002\u91d1\u5c5e\u7535\u7f06\u63a5\u5165\u91d1\u5c5e\u63a5\u7ebf\u76d2\u65f6\uff0c\u9884\u7559\u5b54\u8fb9\u7f18\u950b\u5229\uff0c\u5bb9\u6613\u635f\u574f\u7edd\u7f18\u5c42\u3002\u8fde\u63a5\u5668\u53ef\u4ee5\u4f7f\u9884\u7559\u5b54\u8fb9\u7f18\u5149\u6ed1\uff0c\u5e76\u56fa\u5b9a\u7535\u7f06\u3002\u975e\u91d1\u5c5e\u62a4\u5957\u7535\u7f06\u9700\u8981\u4f7f\u7528\u80fd\u591f\u5939\u7d27\u62a4\u5957\u800c\u4e0d\u635f\u574f\u62a4\u5957\u7684\u5939\u5177\u3002\u6839\u636e\u7f8e\u56fd\u56fd\u5bb6\u7535\u6c14\u89c4\u8303 (NEC) 300.12 \u53ca\u7c7b\u4f3c\u6761\u6b3e\uff0c\u5408\u9002\u7684\u63a5\u5934\u53ef\u4ee5\u786e\u4fdd\u5bfc\u7ebf\u5b89\u5168\uff0c\u5e76\u9632\u6b62\u7535\u7f06\u5728\u5b89\u88c5\u4f7f\u7528\u5bff\u547d\u671f\u95f4\u56e0\u62c9\u62d4\u800c\u8131\u843d\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Protect_Junction_Boxes_in_Damp_or_Hazardous_Locations\"><\/span><strong><b>\u4fdd\u62a4\u6f6e\u6e7f\u6216\u5371\u9669\u573a\u6240\u7684\u63a5\u7ebf\u76d2<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u6839\u636eNEC 314.15\uff0c\u5b89\u88c5\u4f4d\u7f6e\u51b3\u5b9a\u4f7f\u7528\u54ea\u79cd\u7b3c\u5b50\u3002\u5728\u6f6e\u6e7f\u7684\u5730\u65b9\u9700\u8981\u4f7f\u7528\u5e26\u5bc6\u5c01\u76d6\u7684\u9632\u98ce\u96e8\u7bb1\uff0c\u4ee5\u9632\u6b62\u6c34\u6e17\u5165\u3002\u53c2\u89c1NEC\u7b2c500\u6761\u548c\u7b2c516\u6761\u3002<strong><b>\u00a0<\/b><\/strong>\u9002\u7528\u4e8e\u5316\u5de5\u5382\u3001\u7cae\u4ed3\u548c\u6cb9\u6f06\u5382\u7b49\u5371\u9669\u573a\u6240\u3002\u8fd9\u4e9b\u573a\u6240\u901a\u5e38\u9700\u8981\u9632\u7206\u5916\u58f3\uff0c\u4ee5\u5e94\u5bf9\u5185\u90e8\u70b9\u706b\u6e90\u3002\u5728\u8fd9\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6807\u51c6\u7684\u5ba4\u5185\u9632\u7206\u7bb1\u5bb9\u6613\u5931\u6548\uff0c\u5e76\u5e26\u6765\u8fc7\u591a\u7684\u5b89\u5168\u9690\u60a3\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Do_Not_Compromise_Fire_Safety_Requirements\"><\/span><strong><b>\u4e0d\u5f97\u964d\u4f4e\u6d88\u9632\u5b89\u5168\u8981\u6c42<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u63a5\u7ebf\u76d2\u5185\u4ea7\u751f\u7684\u7535\u5f27\u548c\u706b\u82b1\u80fd\u591f\u9632\u6b62\u6613\u71c3\u6750\u6599\u8d77\u706b\uff0c\u524d\u63d0\u662f\u5b89\u88c5\u5f97\u5f53\u3002\u7a7f\u900f\u5f0f\u9632\u706b\u7269\u54c1\u9700\u8981\u683c\u5916\u6ce8\u610f\u3002\u9632\u706b\u5899\u548c\u5929\u82b1\u677f\u53ef\u80fd\u9700\u8981\u4f7f\u7528\u817b\u5b50\u57ab\u6216\u5bc6\u5c01\u5242\u3002\u8fd9\u79cd\u7269\u8d28\u53ef\u4ee5\u5728\u88c5\u7bb1\u540e\u6062\u590d\u7ec4\u4ef6\u7684\u9632\u706b\u6027\u80fd\u3002\u5207\u52ff\u5fd8\u8bb0\u8fd9\u4e9b\u8981\u6c42\u2014\u2014\u6d88\u9632\u5b89\u5168\u5728\u68c0\u67e5\u4e4b\u540e\u4ecd\u80fd\u957f\u671f\u4fdd\u62a4\u4eba\u5458\u548c\u8d22\u4ea7\u5b89\u5168\u3002.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Common_Electrical_Junction_Box_Mistakes_to_Avoid\"><\/span><strong><b>\u907f\u514d\u5e38\u89c1\u7684\u7535\u6c14\u63a5\u7ebf\u76d2\u9519\u8bef<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Overcrowding_Wires\"><\/span><strong><b>\u7535\u7ebf\u8fc7\u5bc6<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u5728\u63a5\u7ebf\u76d2\u91cc\u585e\u5165\u8fc7\u591a\u7535\u7ebf\u4f1a\u5bfc\u81f4\u95ee\u9898\u3002\u8fd9\u4f1a\u4ea7\u751f\u70ed\u91cf\uff0c\u5728\u5b89\u88c5\u8fc7\u7a0b\u4e2d\u4f1a\u635f\u574f\u7edd\u7f18\u5c42\uff0c\u800c\u4e14\u4f1a\u4f7f\u65e5\u540e\u7ef4\u4fee\u53d8\u5f97\u975e\u5e38\u56f0\u96be\u3002\u5728\u5f00\u59cb\u5e03\u7ebf\u4e4b\u524d\uff0c\u52a1\u5fc5\u5148\u4f30\u7b97\u63a5\u7ebf\u76d2\u7684\u586b\u5145\u91cf\u3002\u5982\u679c\u63a5\u7ebf\u76d2\u592a\u5c0f\uff0c\u5c31\u6362\u7528\u66f4\u5927\u4e00\u53f7\u7684\u3002.<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-46545\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Junction-Box-Used-for-Electrical-Safety.jpg\" alt=\"\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Junction-Box-Used-for-Electrical-Safety.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Junction-Box-Used-for-Electrical-Safety-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Junction-Box-Used-for-Electrical-Safety-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2025\/03\/Junction-Box-Used-for-Electrical-Safety-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Hidden_or_Buried_Boxes\"><\/span><strong><b>\u9690\u85cf\u6216\u57cb\u85cf\u7684\u76d2\u5b50<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u7528\u77f3\u818f\u677f\u3001\u6728\u677f\u6216\u74f7\u7816\u906e\u76d6\u63a5\u7ebf\u76d2\u7edd\u5bf9\u4e0d\u662f\u4e2a\u597d\u4e3b\u610f\u3002\u5899\u4f53\u5b8c\u5de5\u540e\uff0c\u63a5\u7ebf\u76d2\u5c31\u6c38\u8fdc\u627e\u4e0d\u5230\u4e86\u3002\u5c06\u6765\u4e70\u623f\u7684\u4eba\u6216\u8005\u4ece\u4e8b\u7535\u5de5\u5de5\u4f5c\u7684\u4eba\uff0c\u5982\u679c\u627e\u4e0d\u5230\u6216\u591f\u4e0d\u5230\u8fd9\u4e9b\u63a5\u7ebf\u70b9\uff0c\u80af\u5b9a\u4f1a\u5bf9\u4f60\u7834\u53e3\u5927\u9a82\u3002\u52a1\u5fc5\u786e\u4fdd\u63a5\u7ebf\u76d2\u6613\u4e8e\u89e6\u53ca\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Missing_Covers\"><\/span><strong><b>\u5c01\u9762\u7f3a\u5931<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u5de5\u4f5c\u73b0\u573a\u655e\u5f00\u63a5\u7ebf\u76d2\u65e2\u5371\u9669\u53c8\u4e0d\u4e13\u4e1a\u3002\u8fd9\u4f1a\u5bfc\u81f4\u5e26\u7535\u7aef\u5b50\u66b4\u9732\u5728\u5916\uff0c\u5bb9\u6613\u88ab\u4eba\u8bef\u89e6\uff0c\u800c\u4e14\u7070\u5c18\u3001\u6606\u866b\u548c\u5176\u4ed6\u6742\u7269\u4e5f\u4f1a\u8fdb\u5165\u8fde\u63a5\u5904\uff0c\u9020\u6210\u6c61\u67d3\u3002\u63a5\u7ebf\u76d2\u76d6\u5e94\u8be5\u5728\u6bcf\u6b21\u5de5\u4f5c\u7ed3\u675f\u540e\u624d\u76d6\u4e0a\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Poor_Grounding\"><\/span><strong><b>\u63a5\u5730\u4e0d\u826f<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u5982\u679c\u4f60\u5fd8\u8bb0\u5c06\u91d1\u5c5e\u76d2\u63a5\u5730\uff0c\u5b83\u968f\u65f6\u53ef\u80fd\u7740\u706b\u3002\u5982\u679c\u706b\u7ebf\u4e0e\u91d1\u5c5e\u76d2\u77ed\u8def\uff0c\u6574\u4e2a\u5bb9\u5668\u90fd\u4f1a\u5e26\u7535\uff0c\u65e0\u6cd5\u63a5\u5730\u3002\u52a1\u5fc5\u82b1\u4e00\u5206\u949f\u65f6\u95f4\uff0c\u628a\u7eff\u8272\u7684\u63a5\u5730\u5939\u6216\u87ba\u4e1d\u5b89\u88c5\u5230\u4f4d\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Using_Wrong_Box_Type\"><\/span><strong><b>\u4f7f\u7528\u4e86\u9519\u8bef\u7684\u6846\u7c7b\u578b<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u65b0\u624b\u5e38\u72af\u7684\u9519\u8bef\u5305\u62ec\uff1a\u4f7f\u7528\u6807\u51c6\u540a\u6247\u63a5\u7ebf\u76d2\u6216\u5c06\u5ba4\u5185\u63a5\u7ebf\u76d2\u7528\u4e8e\u5ba4\u5916\u5b89\u88c5\u3002\u5982\u679c\u9009\u62e9\u9519\u8bef\u7684\u63a5\u7ebf\u76d2\uff0c\u540a\u6247\u53ef\u80fd\u4f1a\u81ea\u884c\u7834\u88c2\u6216\u6f0f\u6c34\u3002\u5b89\u88c5\u524d\uff0c\u52a1\u5fc5\u68c0\u67e5\u63a5\u7ebf\u76d2\u4e0a\u662f\u5426\u6807\u660e\u4e86\u6b63\u786e\u7684\u7528\u9014\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Loose_Mounting\"><\/span><strong><b>\u677e\u6563\u5b89\u88c5<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u5982\u679c\u63a5\u7ebf\u76d2\u5728\u63d2\u62d4\u7535\u6e90\u7ebf\u6216\u6253\u5f00\u76d6\u5b50\u65f6\u4f1a\u79fb\u52a8\uff0c\u8bf4\u660e\u5b83\u4eec\u7684\u8d28\u91cf\u4e0d\u597d\u3002\u8fd9\u79cd\u79fb\u52a8\u4f1a\u635f\u574f\u7535\u7ebf\u7edd\u7f18\u5c42\uff0c\u5e76\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\u5bfc\u81f4\u8fde\u63a5\u65ad\u5f00\u3002\u5e94\u8be5\u5c06\u63a5\u7ebf\u76d2\u7262\u56fa\u5730\u56fa\u5b9a\u5728\u5efa\u7b51\u7269\u4e0a\uff0c\u8fd9\u6837\u5b83\u4eec\u624d\u80fd\u4fdd\u6301\u6570\u5341\u5e74\u4e0d\u53d8\u3002.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Electrical_Junction_Box_Installation_Best_Practices\"><\/span><strong><b>\u7535\u6c14\u63a5\u7ebf\u76d2\u5b89\u88c5\u6700\u4f73\u5b9e\u8df5<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49443\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-4.jpg\" alt=\"\u7535\u6c14\u63a5\u7ebf\u76d2\uff084\uff09\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-4.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-4-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-4-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-4-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Plan_Box_Placement_before_Wiring\"><\/span><strong><b>\u5e03\u7ebf\u524d\u786e\u5b9a\u63a5\u7ebf\u76d2\u4f4d\u7f6e<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u63d0\u524d\u89c4\u5212\u597d\u5f00\u5173\u3001\u63d2\u5ea7\u548c\u63a5\u7ebf\u70b9\u7684\u4f4d\u7f6e\u3002\u5f00\u59cb\u5e03\u7ebf\u524d\uff0c\u6807\u8bb0\u51fa\u5899\u67f1\u7684\u4f4d\u7f6e\u548c\u63a5\u7ebf\u76d2\u7684\u9ad8\u5ea6\u3002\u7a0d\u52a0\u89c4\u5212\u5c31\u80fd\u8282\u7701\u5927\u91cf\u65f6\u95f4\u548c\u7cbe\u529b\uff0c\u5e76\u786e\u4fdd\u63a5\u7ebf\u76d2\u5b89\u88c5\u5728\u6b63\u786e\u7684\u4f4d\u7f6e\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Label_Circuits_Clearly\"><\/span><strong><b>\u6e05\u6670\u6807\u6ce8\u7535\u8def<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u5373\u4f7f\u89c4\u8303\u6ca1\u6709\u5f3a\u5236\u8981\u6c42\uff0c\u5728\u63a5\u7ebf\u76d2\u76d6\u5185\u4fa7\u8d34\u4e0a\u6807\u7b7e\u4e5f\u662f\u4e2a\u597d\u4e3b\u610f\uff0c\u4ece\u957f\u8fdc\u6765\u770b\u975e\u5e38\u5b9e\u7528\u3002\u7b80\u5355\u7684\u6807\u7b7e\uff0c\u4f8b\u5982\u8bf4\u660e\u63a5\u7ebf\u76d2\u8fde\u63a5\u5230\u54ea\u4e2a\u7535\u8def\u6216\u7528\u9014\uff0c\u5c31\u80fd\u5e2e\u52a9\u65b0\u5458\u5de5\u66f4\u5feb\u5730\u627e\u51fa\u95ee\u9898\u6240\u5728\uff0c\u800c\u65e0\u9700\u731c\u6d4b\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Leave_Extra_Wire_Length\"><\/span><strong><b>\u9884\u7559\u989d\u5916\u7684\u7535\u7ebf\u957f\u5ea6<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u89c4\u8303\u4e0a\u8bf4\u8981\u7559\u51fa\u516d\u82f1\u5bf8\u7684\u7ebf\u5934\uff0c\u4f46\u6700\u597d\u8fd8\u662f\u591a\u7559\u4e00\u4e9b\u3002\u957f\u4e00\u70b9\u7684\u7535\u7ebf\u66f4\u5bb9\u6613\u62fc\u63a5\uff0c\u800c\u4e14\u5982\u679c\u4ee5\u540e\u9700\u8981\u79fb\u9664\u7834\u635f\u7684\u7edd\u7f18\u5c42\uff0c\u4e5f\u65b9\u4fbf\u64cd\u4f5c\u3002\u4e0d\u8fc7\uff0c\u4e5f\u4e0d\u8981\u7559\u5f97\u592a\u957f\uff0c\u4ee5\u514d\u63a5\u7ebf\u76d2\u592a\u6ee1\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Use_High-Quality_Enclosures\"><\/span><strong><b>\u4f7f\u7528\u9ad8\u8d28\u91cf\u5916\u58f3<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u5ec9\u4ef7\u7684\u96c6\u88c5\u7bb1\u53ef\u80fd\u4f1a\u5f2f\u66f2\u3001\u7834\u635f\uff0c\u6216\u8005\u87ba\u4e1d\u5b54\u4e0d\u5339\u914d\u3002\u5982\u679c\u60a8\u4ece\u50cfKDM Steel\u8fd9\u6837\u4fe1\u8a89\u826f\u597d\u7684\u516c\u53f8\u8d2d\u4e70\u4f18\u8d28\u96c6\u88c5\u7bb1\uff0c\u60a8\u7684\u96c6\u88c5\u7bb1\u5728\u5b89\u88c5\u8fc7\u7a0b\u4e2d\u4ee5\u53ca\u5efa\u7b51\u7269\u7684\u6574\u4e2a\u4f7f\u7528\u5bff\u547d\u671f\u95f4\u90fd\u80fd\u4fdd\u6301\u5b8c\u597d\u3002\u8d28\u91cf\u81f3\u5173\u91cd\u8981\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Follow_Manufacturer_Instructions\"><\/span><strong><b>\u8bf7\u9075\u5faa\u5236\u9020\u5546\u8bf4\u660e\u3002<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u6bcf\u4e2a\u63a5\u7ebf\u76d2\u90fd\u9644\u6709\u5236\u9020\u5546\u63d0\u4f9b\u7684\u5b89\u88c5\u8bf4\u660e\uff0c\u5305\u62ec\u5b89\u88c5\u65b9\u6cd5\u3001\u5bb9\u91cf\uff08\u7acb\u65b9\u82f1\u5bf8\uff09\u4ee5\u53ca\u7528\u9014\u3002\u8bf7\u4ed4\u7ec6\u9605\u8bfb\u3002\u6309\u7167\u8fd9\u4e9b\u6b65\u9aa4\u64cd\u4f5c\uff0c\u60a8\u5c31\u80fd\u786e\u4fdd\u5b89\u88c5\u7b26\u5408\u89c4\u8303\uff0c\u5e76\u4f7f\u63a5\u7ebf\u76d2\u6b63\u5e38\u5de5\u4f5c\u3002.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong><b>\u7ed3\u8bba<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u6bcf\u4f4d\u719f\u7ec3\u7684\u5b89\u88c5\u4eba\u5458\u90fd\u9700\u8981\u4e86\u89e3\u7535\u6c14\u63a5\u7ebf\u76d2\u7684\u76f8\u5173\u89c4\u5b9a\u3002\u9075\u5faa\u7f8e\u56fd\u56fd\u5bb6\u7535\u6c14\u89c4\u8303 (NEC) \u5e76\u4ece KDM Steel \u7b49\u4fe1\u8a89\u826f\u597d\u7684\u516c\u53f8\u8d2d\u4e70\u4f18\u8d28\u63a5\u7ebf\u76d2\uff0c\u53ef\u4ee5\u786e\u4fdd\u60a8\u7684\u7cfb\u7edf\u5b89\u5168\u3001\u5408\u6cd5\u4e14\u7ecf\u4e45\u8010\u7528\u3002. <a href=\"https:\/\/www.kdmsteel.com\/zh\/\">KDM\u94a2\u94c1<\/a>\u00a0\u6211\u4eec\u63d0\u4f9b\u7ecf\u4e45\u8010\u7528\u4e14\u7b26\u5408\u89c4\u8303\u7684\u8bbe\u8ba1\uff0c\u65e0\u8bba\u60a8\u9700\u8981\u575a\u56fa\u7684\u5de5\u4e1a\u7bb1\u8fd8\u662f\u53ef\u9760\u7684\u5546\u4e1a\u5916\u58f3\uff0c\u6211\u4eec\u90fd\u80fd\u6ee1\u8db3\u60a8\u7684\u9700\u6c42\u3002. <a href=\"https:\/\/www.kdmsteel.com\/zh\/\u63a5\u89e6\/\"><strong><b>\u8054\u7cfb\u6211\u4eec<\/b><\/strong><\/a>\u00a0\u7acb\u5373\u83b7\u53d6\u60a8\u7684\u4e13\u5c5e\u62a5\u4ef7\u3002.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQs\"><\/span><strong><b>\u5e38\u89c1\u95ee\u9898\u89e3\u7b54<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50318\" src=\"http:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-1.jpg\" alt=\"\u7535\u6c14\u63a5\u7ebf\u76d2\" width=\"1280\" height=\"720\" srcset=\"https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-1.jpg 1280w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-1-150x84.jpg 150w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-1-768x432.jpg 768w, https:\/\/www.kdmsteel.com\/wp-content\/uploads\/2026\/03\/Electrical-Junction-Box-1-18x10.jpg 18w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Can_you_legally_hide_a_junction_box_behind_drywall_or_ceiling\"><\/span><strong><b>\u662f\u5426\u53ef\u4ee5\u5408\u6cd5\u5730\u5c06\u63a5\u7ebf\u76d2\u9690\u85cf\u5728\u77f3\u818f\u677f\u6216\u5929\u82b1\u677f\u540e\u9762\uff1f<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u7edd\u5bf9\u4e0d\u884c\u3002\u6839\u636e\u7f8e\u56fd\u56fd\u5bb6\u7535\u6c14\u89c4\u8303 (NEC) 314.29 \u6761\u89c4\u5b9a\uff0c\u6240\u6709\u63a5\u7ebf\u76d2\u90fd\u5fc5\u987b\u80fd\u591f\u5728\u4e0d\u62c6\u9664\u4efb\u4f55\u5efa\u7b51\u7ed3\u6784\u7684\u60c5\u51b5\u4e0b\u89e6\u53ca\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_many_wires_are_allowed_inside_a_junction_box\"><\/span><strong><b>\u63a5\u7ebf\u76d2\u5185\u6700\u591a\u5141\u8bb8\u5bb9\u7eb3\u591a\u5c11\u6839\u7535\u7ebf\uff1f<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u6839\u636eNEC 314.16\u7684\u8ba1\u7b97\uff0c\u63a5\u7ebf\u76d2\u7684\u5c3a\u5bf8\u53d6\u51b3\u4e8e\u5176\u5bb9\u79ef\uff08\u7acb\u65b9\u82f1\u5bf8\uff09\u548c\u7535\u7ebf\u89c4\u683c\u3002\u60a8\u5fc5\u987b\u5c06\u63a5\u7ebf\u76d2\u4e0a\u6807\u6ce8\u7684\u5c3a\u5bf8\u4e0e\u6bcf\u6839\u5bfc\u7ebf\u3001\u8bbe\u5907\u548c\u914d\u4ef6\u7684\u5c3a\u5bf8\u8fdb\u884c\u6bd4\u8f83\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Do_all_junction_boxes_need_a_cover\"><\/span><strong><b>\u6240\u6709\u63a5\u7ebf\u76d2\u90fd\u9700\u8981\u76d6\u5b50\u5417\uff1f<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u6839\u636e\u7f8e\u56fd\u56fd\u5bb6\u7535\u6c14\u89c4\u8303 (NEC) 314.25 \u6761\u89c4\u5b9a\uff0c\u6bcf\u4e2a\u7535\u8def\u76d2\u90fd\u9700\u8981\u76d6\u5b50\u3002\u76d6\u5b50\u53ef\u4ee5\u9632\u6b62\u6c61\u67d3\u7269\u8fdb\u5165\u3001\u706b\u82b1\u6cc4\u6f0f\u4ee5\u53ca\u610f\u5916\u89e6\u78b0\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Are_plastic_junction_boxes_safer_than_metal_ones\"><\/span><strong><b>\u5851\u6599\u63a5\u7ebf\u76d2\u6bd4\u91d1\u5c5e\u63a5\u7ebf\u76d2\u66f4\u5b89\u5168\u5417\uff1f<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u4e24\u8005\u5e76\u65e0\u7edd\u5bf9\u7684\u4f18\u52a3\u4e4b\u5206\uff0c\u53ea\u662f\u7528\u9014\u4e0d\u540c\u3002\u5851\u6599\u63a5\u7ebf\u76d2\u4e0d\u5bfc\u7535\uff0c\u9002\u5408\u5bb6\u5ead\u4f7f\u7528\u3002\u800c\u91d1\u5c5e\u63a5\u7ebf\u76d2\u5219\u66f4\u575a\u56fa\u8010\u7528\uff0c\u63a5\u5730\u6027\u80fd\u66f4\u4f73\uff0c\u66f4\u9002\u7528\u4e8e\u5546\u4e1a\u548c\u5de5\u4e1a\u573a\u6240\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_are_the_clearance_requirements_around_junction_boxes\"><\/span><strong><b>\u63a5\u7ebf\u76d2\u5468\u56f4\u7684\u51c0\u7a7a\u8981\u6c42\u662f\u4ec0\u4e48\uff1f<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>NEC 314.29 \u89c4\u5b9a\uff0c\u53ef\u8bbf\u95ee\u6027\u81f3\u5173\u91cd\u8981\u3002\u76d6\u5b50\u5e94\u80fd\u8f7b\u677e\u6253\u5f00\uff0c\u65e0\u9700\u4efb\u4f55\u7ef4\u4fee\u3002NEC 110.26 \u5219\u9488\u5bf9\u5927\u578b\u5c01\u95ed\u7a7a\u95f4\u5185\u7684\u5de5\u4f5c\u533a\u57df\u5236\u5b9a\u4e86\u5177\u4f53\u63aa\u65bd\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Is_labeling_required_inside_junction_boxes\"><\/span><strong><b>\u63a5\u7ebf\u76d2\u5185\u90e8\u662f\u5426\u9700\u8981\u8d34\u6807\u7b7e\uff1f<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u5728\u666e\u901a\u63a5\u7ebf\u76d2\u5185\uff0c\u7f8e\u56fd\u56fd\u5bb6\u7535\u6c14\u89c4\u8303 (NEC) \u5e76\u975e\u603b\u662f\u8981\u6c42\u8d34\u6807\u7b7e\u3002\u7136\u800c\uff0c\u7ed9\u7535\u7ebf\u8d34\u6807\u7b7e\u662f\u4e2a\u597d\u4e3b\u610f\uff0c\u53ef\u4ee5\u4e3a\u4ee5\u540e\u7684\u7535\u5de5\u8282\u7701\u65f6\u95f4\u548c\u7cbe\u529b\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_is_the_difference_between_a_junction_box_and_an_outlet_box\"><\/span><strong><b>\u63a5\u7ebf\u76d2\u548c\u51fa\u7ebf\u76d2\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u63a5\u7ebf\u76d2\u7528\u4e8e\u8fde\u63a5\u5404\u79cd\u7ebf\u8def\uff0c\u800c\u63d2\u5ea7\u76d2\u7528\u4e8e\u5b58\u653e\u5f00\u5173\u6216\u63d2\u5ea7\u7b49\u8bbe\u5907\u3002\u5b9e\u9645\u4e0a\uff0c\u8fd9\u4e24\u4e2a\u672f\u8bed\u7ecf\u5e38\u6307\u4ee3\u540c\u4e00\u4e8b\u7269\uff0c\u5927\u591a\u6570\u76d2\u5b50\u90fd\u80fd\u517c\u5177\u8fd9\u4e24\u79cd\u529f\u80fd\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_you_reuse_an_old_junction_box_during_renovations\"><\/span><strong><b>\u88c5\u4fee\u65f6\u53ef\u4ee5\u91cd\u590d\u4f7f\u7528\u65e7\u7684\u63a5\u7ebf\u76d2\u5417\uff1f<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u662f\u7684\uff0c\u5982\u679c\u63a5\u7ebf\u76d2\u72b6\u51b5\u826f\u597d\uff0c\u6ca1\u6709\u88c2\u7f1d\u6216\u5176\u4ed6\u635f\u574f\uff0c\u5c31\u53ef\u4ee5\u7ee7\u7eed\u4f7f\u7528\u3002\u53ea\u9700\u786e\u4fdd\u5b83\u80fd\u591f\u627f\u53d7\u65b0\u7684\u7ebf\u8def\uff0c\u5e76\u4e14\u6240\u6709\u63a5\u5730\u8fde\u63a5\u90fd\u5b8c\u597d\u65e0\u635f\u5373\u53ef\u3002.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Are_junction_boxes_required_in_industrial_installations\"><\/span><strong><b>\u5de5\u4e1a\u88c5\u7f6e\u4e2d\u662f\u5426\u9700\u8981\u63a5\u7ebf\u76d2\uff1f<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u662f\u7684\uff0c\u7531\u4e8e\u5b89\u5168\u6cd5\u89c4\u548c\u73af\u5883\u4fdd\u62a4\u65b9\u9762\u7684\u8003\u8651\uff0c\u5de5\u4e1a\u573a\u6240\u7684\u6807\u51c6\u5f80\u5f80\u66f4\u52a0\u4e25\u683c\u3002\u4f01\u4e1a\u751f\u4ea7\u7684\u91cd\u578b\u9632\u62a4\u7f69\u901a\u5e38\u7528\u4e8e\u8f66\u95f4\u548c\u5176\u4ed6\u4e25\u82db\u7684\u73af\u5883\u3002.<\/p>","protected":false},"excerpt":{"rendered":"<p>Have you ever had an electrical test fail because of a mistake in a junction box that did not seem important? You are not alone. It can be hard to find your way around the National Electrical Code (NEC), but following the rules for junction boxes is necessary for safety and compliance. This guide breaks [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":50318,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"disabled","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-50307","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Top Electrical Junction Box Rules You Must Follow for Safety &amp; Compliance - KDM Steel<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.kdmsteel.com\/zh\/\u9876\u7ea7\u7535\u6c14\u63a5\u7ebf\u76d2\u89c4\u5219\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Top Electrical Junction Box Rules You Must Follow for Safety &amp; Compliance - KDM Steel\" \/>\n<meta property=\"og:description\" content=\"Have you ever had an electrical test fail because of a mistake in a junction box that did not seem important? 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