{"id":5311,"date":"2025-12-26T15:06:44","date_gmt":"2025-12-26T07:06:44","guid":{"rendered":"https:\/\/www.yroele.com\/?post_type=blog&#038;p=5311"},"modified":"2025-12-26T15:07:38","modified_gmt":"2025-12-26T07:07:38","slug":"why-does-a-circuit-breaker-trip-during-lightning-strikes","status":"publish","type":"blog","link":"https:\/\/www.yroele.com\/vi\/news\/why-does-a-circuit-breaker-trip-during-lightning-strikes","title":{"rendered":"T\u1ea1i sao c\u1ea7u dao ng\u1eaft m\u1ea1ch khi b\u1ecb s\u00e9t \u0111\u00e1nh?"},"content":{"rendered":"<p>S\u1ef1 b\u1ea5t th\u01b0\u1eddng v\u1ec1 \u0111i\u1ec7n do s\u00e9t \u0111\u00e1nh g\u00e2y ra l\u00e0 m\u1ed9t t\u00ecnh hu\u1ed1ng t\u01b0\u01a1ng \u0111\u1ed1i d\u1ec5 b\u1ecb hi\u1ec3u nh\u1ea7m trong s\u1ed1 c\u00e1c nguy\u00ean nh\u00e2n g\u00e2y ra <a href=\"https:\/\/www.yroele.com\/vi\/circuit-breaker\/\" target=\"_blank\" rel=\"noopener\">ng\u1eaft m\u1ea1ch<\/a> nh\u1eefng chuy\u1ebfn \u0111i.<\/p>\n<p>Nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng cho r\u1eb1ng c\u1ea7u dao s\u1ebd ch\u1ec9 ng\u1eaft khi qu\u00e1 t\u1ea3i ho\u1eb7c b\u1ea3n th\u00e2n c\u00f3 v\u1ea5n \u0111\u1ec1. Tuy nhi\u00ean, khi c\u00f3 gi\u00f4ng b\u00e3o, ngay c\u1ea3 khi c\u1ea7u dao \u0111\u01b0\u1ee3c ch\u1ecdn v\u00e0 l\u1eafp \u0111\u1eb7t \u0111\u00fang c\u00e1ch th\u00ec v\u1eabn c\u00f3 th\u1ec3 x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng v\u1ea5p ng\u00e3.<\/p>\n<p>Tr\u00ean th\u1ef1c t\u1ebf, t\u00ecnh tr\u1ea1ng n\u00e0y th\u01b0\u1eddng kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ed7i; thay v\u00e0o \u0111\u00f3, n\u00f3 ch\u1ec9 ra r\u1eb1ng b\u1ed9 ng\u1eaft m\u1ea1ch \u0111ang ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter wp-image-5313\" src=\"https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/12\/YRO-DC-circuit-breaker-MCB.webp?quality=85&strip=all\" alt=\"C\u1ea7u dao YRO DC MCB\" width=\"700\" height=\"700\" srcset=\"https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/12\/YRO-DC-circuit-breaker-MCB.webp?quality=85&strip=all 800w, https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/12\/YRO-DC-circuit-breaker-MCB-300x300.webp?quality=85&strip=all 300w, https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/12\/YRO-DC-circuit-breaker-MCB-150x150.webp?quality=85&strip=all 150w, https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/12\/YRO-DC-circuit-breaker-MCB-768x768.webp?quality=85&strip=all 768w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_76 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\">M\u1ee5c l\u1ee5c<\/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=\"Chuy\u1ec3n \u0111\u1ed5i m\u1ee5c l\u1ee5c\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Chuy\u1ec3n \u0111\u1ed5i<\/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.yroele.com\/vi\/news\/why-does-a-circuit-breaker-trip-during-lightning-strikes\/#Why_Can_Distant_Lightning_Strikes_Also_Cause_Damage\" >T\u1ea1i sao s\u00e9t \u0111\u00e1nh t\u1eeb xa c\u0169ng c\u00f3 th\u1ec3 g\u00e2y ra thi\u1ec7t h\u1ea1i?<\/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.yroele.com\/vi\/news\/why-does-a-circuit-breaker-trip-during-lightning-strikes\/#How_Does_Transient_Overvoltage_Affect_Circuit_Breaker_Operation\" >Qu\u00e1 \u0111i\u1ec7n \u00e1p tho\u00e1ng qua \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 ng\u1eaft m\u1ea1ch nh\u01b0 th\u1ebf n\u00e0o?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.yroele.com\/vi\/news\/why-does-a-circuit-breaker-trip-during-lightning-strikes\/#The_More_Sensitive_the_Load_The_More_Prone_It_Is_to_Tripping_During_a_Lightning_Strike\" >T\u1ea3i c\u00e0ng nh\u1ea1y c\u1ea3m th\u00ec c\u00e0ng d\u1ec5 b\u1ecb v\u1ea5p khi b\u1ecb s\u00e9t \u0111\u00e1nh<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.yroele.com\/vi\/news\/why-does-a-circuit-breaker-trip-during-lightning-strikes\/#Characteristics_of_Sensitive_Loads\" >\u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a t\u1ea3i nh\u1ea1y c\u1ea3m<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.yroele.com\/vi\/news\/why-does-a-circuit-breaker-trip-during-lightning-strikes\/#Why_Are_Sensitive_Loads_More_Likely_to_Cause_Circuit_Breaker_Tripping\" >T\u1ea1i sao c\u00e1c t\u1ea3i nh\u1ea1y c\u1ea3m c\u00f3 nhi\u1ec1u kh\u1ea3 n\u0103ng g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng ng\u1eaft m\u1ea1ch h\u01a1n?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.yroele.com\/vi\/news\/why-does-a-circuit-breaker-trip-during-lightning-strikes\/#The_Importance_of_System_Coordination_in_Lightning_Protection\" >T\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c ph\u1ed1i h\u1ee3p h\u1ec7 th\u1ed1ng trong ch\u1ed1ng s\u00e9t<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.yroele.com\/vi\/news\/why-does-a-circuit-breaker-trip-during-lightning-strikes\/#The_Importance_of_Circuit_Breaker_Design_and_Quality_Under_Lightning_Strike_Conditions\" >T\u1ea7m quan tr\u1ecdng c\u1ee7a thi\u1ebft k\u1ebf v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u1ea7u dao trong \u0111i\u1ec1u ki\u1ec7n s\u00e9t \u0111\u00e1nh<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.yroele.com\/vi\/news\/why-does-a-circuit-breaker-trip-during-lightning-strikes\/#Conclusion\" >Ph\u1ea7n k\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Why_Can_Distant_Lightning_Strikes_Also_Cause_Damage\"><\/span><strong>T\u1ea1i sao s\u00e9t \u0111\u00e1nh t\u1eeb xa c\u0169ng c\u00f3 th\u1ec3 g\u00e2y ra thi\u1ec7t h\u1ea1i?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>C\u00f3 m\u1ed9t t\u00ecnh hu\u1ed1ng d\u1ec5 b\u1ecb b\u1ecf qua trong vi\u1ec7c ch\u1ed1ng s\u00e9t: ngay c\u1ea3 khi s\u00e9t kh\u00f4ng \u0111\u00e1nh tr\u1ef1c ti\u1ebfp v\u00e0o t\u00f2a nh\u00e0 ho\u1eb7c \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n, n\u00f3 v\u1eabn c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn h\u1ec7 th\u1ed1ng \u0111i\u1ec7n.<\/p>\n<p>S\u00f3ng \u0111i\u1ec7n \u00e1p sinh ra trong c\u01a1n gi\u00f4ng b\u00e3o truy\u1ec1n \u0111i nhanh ch\u00f3ng d\u1ecdc theo \u0111\u01b0\u1eddng d\u00e2y truy\u1ec1n t\u1ea3i, d\u00e2y ch\u1ed1ng s\u00e9t ho\u1eb7c \u0111\u01b0\u1eddng \u1ed1ng kim lo\u1ea1i ng\u1ea7m, \u0111\u1ebfn c\u00e1c thi\u1ebft b\u1ecb ph\u00e2n ph\u1ed1i c\u00e1ch xa h\u00e0ng tr\u0103m m\u00e9t, th\u1eadm ch\u00ed h\u00e0ng km. \u0110i\u1ec7n \u00e1p tr\u00ean \u0111\u01b0\u1eddng d\u00e2y t\u0103ng m\u1ea1nh trong kho\u1ea3ng th\u1eddi gian c\u1ef1c ng\u1eafn, t\u1ea1o ra qu\u00e1 \u0111i\u1ec7n \u00e1p nh\u1ea5t th\u1eddi (t\u0103ng v\u1ecdt) \u0111i v\u00e0o l\u01b0\u1edbi \u0111i\u1ec7n b\u00ean trong t\u00f2a nh\u00e0.<\/p>\n<p>Do \u0111\u00f3, h\u1ea7u h\u1ebft s\u00e9t g\u00e2y ra<a href=\"https:\/\/www.yroele.com\/vi\/dc-circuit-breaker\/miniature-circuit-breaker-dc550v-high-quality-yrl7-63dc-2p-popular-choice\/\" target=\"_blank\" rel=\"noopener\"> ng\u1eaft m\u1ea1ch<\/a> v\u1ea5p ng\u00e3 l\u00e0<strong> kh\u00f4ng<\/strong> do s\u00e9t \u0111\u00e1nh tr\u1ef1c ti\u1ebfp m\u00e0 l\u00e0 do s\u00e9t t\u1ea1o ra.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_Does_Transient_Overvoltage_Affect_Circuit_Breaker_Operation\"><\/span><strong>Qu\u00e1 \u0111i\u1ec7n \u00e1p tho\u00e1ng qua \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ho\u1ea1t \u0111\u1ed9ng c\u1ee7a b\u1ed9 ng\u1eaft m\u1ea1ch nh\u01b0 th\u1ebf n\u00e0o?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>M\u1eb7c d\u00f9 qu\u00e1 \u0111i\u1ec7n \u00e1p nh\u1ea5t th\u1eddi ch\u1ec9 t\u1ed3n t\u1ea1i \u1edf m\u1ee9c micro gi\u00e2y ho\u1eb7c mili gi\u00e2y nh\u01b0ng bi\u00ean \u0111\u1ed9 c\u1ee7a n\u00f3 v\u01b0\u1ee3t xa m\u1ee9c ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng c\u1ee7a h\u1ec7 th\u1ed1ng.<\/p>\n<p>Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, nh\u1eefng thay \u0111\u1ed5i sau c\u00f3 th\u1ec3 x\u1ea3y ra \u0111\u1ed3ng th\u1eddi b\u00ean trong b\u1ed9 ng\u1eaft m\u1ea1ch:<\/p>\n<ul>\n<li>Thay \u0111\u1ed5i \u0111i\u1ec7n \u00e1p \u0111\u1ed9t ng\u1ed9t g\u00e2y ra d\u00f2ng \u0111i\u1ec7n t\u1ee9c th\u1eddi b\u1ea5t th\u01b0\u1eddng<\/li>\n<li>L\u1ef1c \u0111i\u1ec7n t\u1eeb b\u00ean trong t\u0103ng m\u1ea1nh<\/li>\n<li>C\u01a1 quan b\u1ea3o v\u1ec7 an ninh ph\u00e1t hi\u1ec7n t\u00ecnh tr\u1ea1ng ho\u1ea1t \u0111\u1ed9ng b\u1ea5t th\u01b0\u1eddng<\/li>\n<\/ul>\n<p>Qu\u00e1 \u0111i\u1ec7n \u00e1p ho\u1eb7c d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n b\u1eb1ng r\u01a1le qu\u00e1 d\u00f2ng\/qu\u00e1 \u00e1p b\u00ean trong b\u1ed9 ng\u1eaft m\u1ea1ch. C\u00e1c c\u01a1 ch\u1ebf b\u1ea3o v\u1ec7 n\u00e0y s\u1ebd g\u1eedi t\u00edn hi\u1ec7u b\u1ea5t th\u01b0\u1eddng \u0111\u1ebfn cu\u1ed9n d\u00e2y t\u00e1c \u0111\u1ed9ng ho\u1eb7c h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n, t\u1eeb \u0111\u00f3 g\u00e2y ra t\u00e1c \u0111\u1ed9ng c\u1eaft.<\/p>\n<p><img decoding=\"async\" class=\"size-full wp-image-5315 aligncenter\" src=\"https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/12\/Transient-Overvoltage.jpg?quality=85&strip=all\" alt=\"Qu\u00e1 \u0111i\u1ec7n \u00e1p tho\u00e1ng qua\" width=\"600\" height=\"552\" srcset=\"https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/12\/Transient-Overvoltage.jpg?quality=85&strip=all 600w, https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/12\/Transient-Overvoltage-300x276.jpg?quality=85&strip=all 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"The_More_Sensitive_the_Load_The_More_Prone_It_Is_to_Tripping_During_a_Lightning_Strike\"><\/span><strong>T\u1ea3i c\u00e0ng nh\u1ea1y c\u1ea3m th\u00ec c\u00e0ng d\u1ec5 b\u1ecb v\u1ea5p khi b\u1ecb s\u00e9t \u0111\u00e1nh<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>D\u01b0\u1edbi \u1ea3nh h\u01b0\u1edfng c\u1ee7a qu\u00e1 \u0111i\u1ec7n \u00e1p nh\u1ea5t th\u1eddi ho\u1eb7c d\u00f2ng \u0111i\u1ec7n \u0111\u1ed9t bi\u1ebfn do s\u00e9t t\u1ea1o ra, t\u1ea3i c\u00e0ng nh\u1ea1y c\u1ea3m (t\u1ee9c l\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu dao \u0111\u1ed9ng \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n c\u00e0ng th\u1ea5p) th\u00ec kh\u1ea3 n\u0103ng ng\u1eaft m\u1ea1ch c\u1ee7a c\u1ea7u dao c\u00e0ng cao.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Characteristics_of_Sensitive_Loads\"><\/span><strong>\u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a t\u1ea3i nh\u1ea1y c\u1ea3m<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<table>\n<tbody>\n<tr>\n<td>\n<p><strong><b>Lo\u1ea1i t\u1ea3i<\/b><\/strong><\/p>\n<\/td>\n<td>\n<p><strong><b>Dung sai dao \u0111\u1ed9ng \u0111i\u1ec7n \u00e1p\/d\u00f2ng \u0111i\u1ec7n<\/b><\/strong><\/p>\n<\/td>\n<td>\n<p><strong><b>V\u00ed d\u1ee5 ph\u1ed5 bi\u1ebfn<\/b><\/strong><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p>Thi\u1ebft b\u1ecb \u0110i\u1ec7n t\u1eed\/Truy\u1ec1n th\u00f4ng (PLC, m\u00e1y ch\u1ee7, b\u1ed9 bi\u1ebfn t\u1ea7n, b\u1ed9 bi\u1ebfn t\u1ea7n PV, v.v.)<\/p>\n<\/td>\n<td>\n<p>\u0110\u1ed9 l\u1ec7ch \u0111i\u1ec7n \u00e1p \u0111\u1ecbnh m\u1ee9c \u00b15% ho\u1eb7c th\u1eadm ch\u00ed nh\u1ecf h\u01a1n; r\u1ea5t nh\u1ea1y c\u1ea3m v\u1edbi d\u00f2ng \u0111i\u1ec7n \u0111\u1ed9t ng\u1ed9t<\/p>\n<\/td>\n<td>\n<p>Trung t\u00e2m d\u1eef li\u1ec7u, h\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p>D\u1ee5ng c\u1ee5 ch\u00ednh x\u00e1c (d\u1ee5ng c\u1ee5 \u0111o l\u01b0\u1eddng, thi\u1ebft b\u1ecb th\u00ed nghi\u1ec7m)<\/p>\n<\/td>\n<td>\n<p>Kh\u1ea3 n\u0103ng ch\u1ecbu qu\u00e1 \u00e1p qu\u00e1 m\u1ee9c c\u1ef1c th\u1ea5p, th\u01b0\u1eddng \u0111\u01b0\u1ee3c trang b\u1ecb b\u1ed9 b\u1ea3o v\u1ec7 \u0111\u1ed9t bi\u1ebfn<\/p>\n<\/td>\n<td>\n<p>D\u1ee5ng c\u1ee5 ph\u00f2ng th\u00ed nghi\u1ec7m, thi\u1ebft b\u1ecb \u0111o l\u01b0\u1eddng<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p>\u0110\u1ed9ng c\u01a1\/B\u1ed9 truy\u1ec1n \u0111\u1ed9ng t\u1ea7n s\u1ed1<\/p>\n<\/td>\n<td>\n<p>Y\u00eau c\u1ea7u dung sai cao h\u01a1n \u0111\u1ed1i v\u1edbi s\u1ee5t \u00e1p v\u00e0 t\u0103ng \u0111\u1ed9t bi\u1ebfn \u0111i\u1ec7n \u00e1p nh\u1ea5t th\u1eddi; d\u00f2ng \u0111i\u1ec7n t\u0103ng c\u00f3 th\u1ec3 g\u00e2y m\u1ea5t \u0111\u1ed3ng b\u1ed9 ho\u1eb7c l\u00e0m h\u1ecfng c\u00e1c b\u1ed9 ph\u1eadn ngu\u1ed3n<\/p>\n<\/td>\n<td>\n<p>Qu\u1ea1t, m\u00e1y b\u01a1m, m\u00e1y n\u00e9n l\u1edbn<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td>\n<p>Chi\u1ebfu s\u00e1ng chung, t\u1ea3i \u1ed5 c\u1eafm<\/p>\n<\/td>\n<td>\n<p>Kh\u1ea3 n\u0103ng ch\u1ecbu \u0111\u1ef1ng \u0111i\u1ec7n \u00e1p qu\u00e1 \u0111\u1ed9 t\u01b0\u01a1ng \u0111\u1ed1i cao h\u01a1n; s\u1ef1 \u0111\u1ed9t bi\u1ebfn th\u01b0\u1eddng xuy\u00ean \u00edt c\u00f3 kh\u1ea3 n\u0103ng g\u00e2y v\u1ea5p ng\u00e3<\/p>\n<\/td>\n<td>\n<p>Chi\u1ebfu s\u00e1ng gia \u0111\u00ecnh, \u1ed5 c\u1eafm ti\u00eau chu\u1ea9n<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><span class=\"ez-toc-section\" id=\"Why_Are_Sensitive_Loads_More_Likely_to_Cause_Circuit_Breaker_Tripping\"><\/span><strong>T\u1ea1i sao c\u00e1c t\u1ea3i nh\u1ea1y c\u1ea3m c\u00f3 nhi\u1ec1u kh\u1ea3 n\u0103ng g\u00e2y ra hi\u1ec7n t\u01b0\u1ee3ng ng\u1eaft m\u1ea1ch h\u01a1n?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Khi s\u00e9t \u0111\u00e1nh x\u1ea3y ra, qu\u00e1 \u0111i\u1ec7n \u00e1p nh\u1ea5t th\u1eddi m\u00e0 n\u00f3 g\u00e2y ra s\u1ebd t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n kh\u1edfi \u0111\u1ed9ng, \u0111i\u1ec7n \u00e1p ph\u1ee5c h\u1ed3i nh\u1ea5t th\u1eddi v\u00e0 dao \u0111\u1ed9ng t\u1ea7n s\u1ed1 cao b\u00ean trong b\u1ed9 ng\u1eaft m\u1ea1ch. Thi\u1ebft b\u1ecb t\u1ea3i c\u00e0ng nh\u1ea1y c\u1ea3m v\u1edbi s\u1ef1 dao \u0111\u1ed9ng c\u1ee7a \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n th\u00ec m\u1ea1ch b\u1ea3o v\u1ec7 b\u00ean trong c\u1ee7a n\u00f3 c\u00e0ng c\u00f3 nhi\u1ec1u kh\u1ea3 n\u0103ng \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t khi b\u1ecb va ch\u1ea1m v\u00e0 n\u00f3 s\u1ebd ph\u1ea3n h\u1ed3i t\u00edn hi\u1ec7u l\u1ed7i v\u1ec1 l\u01b0\u1edbi \u0111i\u1ec7n, khi\u1ebfn c\u1ea7u dao b\u1ecb ng\u1eaft.<\/p>\n<p>\u0110\u1ec3 gi\u1ea3m nguy c\u01a1 v\u1ea5p nh\u1ea7m do \u0111\u1ed9 nh\u1ea1y t\u1ea3i g\u00e2y ra, c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n m\u1ed9t lo\u1ea1t bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7, bao g\u1ed3m l\u1eafp \u0111\u1eb7t <a href=\"https:\/\/www.yroele.com\/vi\/surge-protective-device\/\" target=\"_blank\" rel=\"noopener\">thi\u1ebft b\u1ecb ch\u1ed1ng s\u00e9t lan truy\u1ec1n<\/a>, l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb c\u00f3 ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 qu\u00e1 \u00e1p v\u00e0 thi\u1ebft l\u1eadp h\u1ec7 th\u1ed1ng n\u1ed1i \u0111\u1ea5t ch\u1ed1ng s\u00e9t ho\u00e0n ch\u1ec9nh. Nh\u1eefng bi\u1ec7n ph\u00e1p n\u00e0y c\u00f3 th\u1ec3 n\u00e2ng cao hi\u1ec7u qu\u1ea3 \u0111\u1ed9 tin c\u1eady t\u1ed5ng th\u1ec3 v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh v\u1eadn h\u00e0nh c\u1ee7a h\u1ec7 th\u1ed1ng \u0111i\u1ec7n.<\/p>\n<h3><strong><img decoding=\"async\" class=\"size-full wp-image-5314 aligncenter\" src=\"https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/12\/YRO-lightning-rods-and-surge-protectors.webp?quality=85&strip=all\" alt=\"C\u1ed9t thu l\u00f4i v\u00e0 thi\u1ebft b\u1ecb ch\u1ed1ng s\u00e9t YRO\" width=\"800\" height=\"800\" srcset=\"https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/12\/YRO-lightning-rods-and-surge-protectors.webp?quality=85&strip=all 800w, https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/12\/YRO-lightning-rods-and-surge-protectors-300x300.webp?quality=85&strip=all 300w, https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/12\/YRO-lightning-rods-and-surge-protectors-150x150.webp?quality=85&strip=all 150w, https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/12\/YRO-lightning-rods-and-surge-protectors-768x768.webp?quality=85&strip=all 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/strong><\/h3>\n<h2><span class=\"ez-toc-section\" id=\"The_Importance_of_System_Coordination_in_Lightning_Protection\"><\/span><strong>T\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c ph\u1ed1i h\u1ee3p h\u1ec7 th\u1ed1ng trong ch\u1ed1ng s\u00e9t<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/www.yroele.com\/vi\/circuit-breaker\/\" target=\"_blank\" rel=\"noopener\">B\u1ed9 ng\u1eaft m\u1ea1ch<\/a> ch\u1ec9 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a h\u1ec7 th\u1ed1ng b\u1ea3o v\u1ec7 \u0111i\u1ec7n, kh\u00f4ng ph\u1ea3i to\u00e0n b\u1ed9.<\/p>\n<p>Khi x\u1ea3y ra s\u00e9t \u0111\u00e1nh, t\u00ednh \u1ed5n \u0111\u1ecbnh c\u1ee7a h\u1ec7 th\u1ed1ng ph\u1ea7n l\u1edbn ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c c\u00f3 s\u1ef1 ph\u1ed1i h\u1ee3p t\u1ed1t gi\u1eefa c\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 kh\u00e1c nhau hay kh\u00f4ng.<\/p>\n<p>S\u1ef1 ph\u1ed1i h\u1ee3p h\u1ec7 th\u1ed1ng h\u1ee3p l\u00fd c\u00f3 th\u1ec3:<\/p>\n<ul>\n<li>Chuy\u1ec3n h\u01b0\u1edbng n\u0103ng l\u01b0\u1ee3ng tr\u01b0\u1edbc khi xung \u0111i\u1ec7n ch\u1ea1m t\u1edbi c\u1ea7u dao.<\/li>\n<li>Gi\u1ea3m t\u00e1c \u0111\u1ed9ng t\u1ee9c th\u1eddi l\u00ean c\u1ea7u dao.<\/li>\n<li>C\u1ea3i thi\u1ec7n s\u1ef1 \u1ed5n \u0111\u1ecbnh t\u1ed5ng th\u1ec3 c\u1ee7a h\u1ec7 th\u1ed1ng cung c\u1ea5p \u0111i\u1ec7n.<\/li>\n<\/ul>\n<p>N\u1ebfu kh\u00f4ng c\u00f3 thi\u1ebft k\u1ebf t\u00edch h\u1ee3p nh\u01b0 v\u1eady, c\u1ea7u dao c\u00f3 th\u1ec3 bu\u1ed9c ph\u1ea3i ch\u1ecbu \u00e1p l\u1ef1c \u0111\u1ed9t bi\u1ebfn v\u01b0\u1ee3t qu\u00e1 vai tr\u00f2 d\u1ef1 \u0111\u1ecbnh c\u1ee7a n\u00f3, d\u1eabn \u0111\u1ebfn t\u00ecnh tr\u1ea1ng ng\u1eaft \u0111i\u1ec7n th\u01b0\u1eddng xuy\u00ean h\u01a1n.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"The_Importance_of_Circuit_Breaker_Design_and_Quality_Under_Lightning_Strike_Conditions\"><\/span><strong>T\u1ea7m quan tr\u1ecdng c\u1ee7a thi\u1ebft k\u1ebf v\u00e0 ch\u1ea5t l\u01b0\u1ee3ng c\u1ea7u dao trong \u0111i\u1ec1u ki\u1ec7n s\u00e9t \u0111\u00e1nh<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Hi\u1ec7u su\u1ea5t kh\u00e1c nhau <a href=\"https:\/\/www.yroele.com\/vi\/circuit-breaker\/\" target=\"_blank\" rel=\"noopener\">b\u1ed9 ng\u1eaft m\u1ea1ch<\/a> trong m\u00f4i tr\u01b0\u1eddng b\u1ecb s\u00e9t \u0111\u00e1nh kh\u00f4ng ho\u00e0n to\u00e0n gi\u1ed1ng nhau.<\/p>\n<p>C\u00e1c chi ti\u1ebft thi\u1ebft k\u1ebf nh\u01b0 c\u1ea5u tr\u00fac ti\u1ebfp \u0111i\u1ec3m, h\u1ec7 th\u1ed1ng d\u1eadp h\u1ed3 quang v\u00e0 ph\u01b0\u01a1ng ph\u00e1p c\u00e0i \u0111\u1eb7t c\u1eaft \u0111\u1ec1u s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn ch\u1ebf \u0111\u1ed9 ph\u1ea3n \u1ee9ng c\u1ee7a m\u00e1y c\u1eaft trong c\u00e1c s\u1ef1 ki\u1ec7n nh\u1ea5t th\u1eddi.<\/p>\n<p>B\u1ed9 ng\u1eaft m\u1ea1ch c\u00f3 hi\u1ec7u su\u1ea5t \u1ed5n \u0111\u1ecbnh v\u00e0 thi\u1ebft k\u1ebf ho\u00e0n thi\u1ec7n th\u01b0\u1eddng c\u00f3 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m sau:<\/p>\n<ul>\n<li>N\u00f3 c\u00f3 th\u1ec3 duy tr\u00ec \u1ed5n \u0111\u1ecbnh trong c\u00e1c r\u1ed1i lo\u1ea1n \u0111i\u1ec7n ng\u1eafn h\u1ea1n<\/li>\n<li>H\u00e0nh \u0111\u1ed9ng nhanh ch\u00f3ng v\u00e0 d\u1ee9t kho\u00e1t khi v\u01b0\u1ee3t ng\u01b0\u1ee1ng<\/li>\n<li>V\u1eabn c\u00f3 kh\u1ea3 n\u0103ng reset \u0111\u00e1ng tin c\u1eady sau khi b\u1ecb s\u00e9t \u0111\u00e1nh<\/li>\n<\/ul>\n<p>B\u1ed9 ng\u1eaft m\u1ea1ch qu\u00e1 ch\u1eadm c\u00f3 th\u1ec3 l\u00e0m t\u0103ng nguy c\u01a1 h\u01b0 h\u1ecfng thi\u1ebft b\u1ecb.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-5312 aligncenter\" src=\"https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/12\/YRO-AC-molded-case-circuit-breaker-MCCB.webp?quality=85&strip=all\" alt=\"C\u1ea7u dao v\u1ecf \u0111\u00fac YRO AC MCCB\" width=\"800\" height=\"800\" srcset=\"https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/12\/YRO-AC-molded-case-circuit-breaker-MCCB.webp?quality=85&strip=all 800w, https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/12\/YRO-AC-molded-case-circuit-breaker-MCCB-300x300.webp?quality=85&strip=all 300w, https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/12\/YRO-AC-molded-case-circuit-breaker-MCCB-150x150.webp?quality=85&strip=all 150w, https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/12\/YRO-AC-molded-case-circuit-breaker-MCCB-768x768.webp?quality=85&strip=all 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong>Ph\u1ea7n k\u1ebft lu\u1eadn<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>S\u00e9t \u0111\u00e1nh khi\u1ebfn c\u1ea7u dao ng\u1eaft m\u1ea1ch th\u01b0\u1eddng l\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a \u1ea3nh h\u01b0\u1edfng t\u1ed5ng h\u1ee3p c\u1ee7a nhi\u1ec1u y\u1ebfu t\u1ed1, bao g\u1ed3m qu\u00e1 \u0111i\u1ec7n \u00e1p nh\u1ea5t th\u1eddi v\u00e0 \u0111\u1ed9 nh\u1ea1y c\u00f3 tr\u00e1ch nhi\u1ec7m.<\/p>\n<p>Trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p, ki\u1ec3u ng\u1eaft n\u00e0y kh\u00f4ng ph\u1ea3i l\u00e0 l\u1ed7i thi\u1ebft b\u1ecb m\u00e0 l\u00e0 ph\u1ea3n \u1ee9ng b\u00ecnh th\u01b0\u1eddng c\u1ee7a h\u1ec7 th\u1ed1ng b\u1ea3o v\u1ec7 \u0111i\u1ec7n trong \u0111i\u1ec1u ki\u1ec7n b\u1ea5t th\u01b0\u1eddng.<\/p>\n<p>Th\u00f4ng qua thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng h\u1ee3p l\u00fd, c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 ph\u00f9 h\u1ee3p v\u00e0 c\u1ea7u dao ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh, s\u1ed1 l\u1ea7n ng\u1eaft \u0111i\u1ec7n do s\u00e9t \u0111\u00e1nh c\u00f3 th\u1ec3 gi\u1ea3m b\u1edbt m\u00e0 v\u1eabn \u0111\u1ea3m b\u1ea3o an to\u00e0n.<\/p>","protected":false},"excerpt":{"rendered":"<p>Nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng cho r\u1eb1ng c\u1ea7u dao s\u1ebd ch\u1ec9 ng\u1eaft khi qu\u00e1 t\u1ea3i ho\u1eb7c b\u1ea3n th\u00e2n c\u00f3 v\u1ea5n \u0111\u1ec1. Tuy nhi\u00ean, khi c\u00f3 gi\u00f4ng b\u00e3o, ngay c\u1ea3 khi c\u1ea7u dao \u0111\u01b0\u1ee3c ch\u1ecdn v\u00e0 l\u1eafp \u0111\u1eb7t \u0111\u00fang c\u00e1ch th\u00ec v\u1eabn c\u00f3 th\u1ec3 x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng v\u1ea5p ng\u00e3.<\/p>","protected":false},"featured_media":5317,"template":"","meta":{"_acf_changed":false,"footnotes":""},"blog_category":[20],"class_list":["post-5311","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-knowledge"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.yroele.com\/vi\/wp-json\/wp\/v2\/blog\/5311","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yroele.com\/vi\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.yroele.com\/vi\/wp-json\/wp\/v2\/types\/blog"}],"version-history":[{"count":4,"href":"https:\/\/www.yroele.com\/vi\/wp-json\/wp\/v2\/blog\/5311\/revisions"}],"predecessor-version":[{"id":5320,"href":"https:\/\/www.yroele.com\/vi\/wp-json\/wp\/v2\/blog\/5311\/revisions\/5320"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.yroele.com\/vi\/wp-json\/wp\/v2\/media\/5317"}],"wp:attachment":[{"href":"https:\/\/www.yroele.com\/vi\/wp-json\/wp\/v2\/media?parent=5311"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.yroele.com\/vi\/wp-json\/wp\/v2\/blog_category?post=5311"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}