{"id":5232,"date":"2025-11-21T16:07:54","date_gmt":"2025-11-21T08:07:54","guid":{"rendered":"https:\/\/www.yroele.com\/?post_type=blog&#038;p=5232"},"modified":"2025-11-21T16:07:54","modified_gmt":"2025-11-21T08:07:54","slug":"what-are-the-signs-of-a-defective-circuit-breaker","status":"publish","type":"blog","link":"https:\/\/www.yroele.com\/vi\/news\/what-are-the-signs-of-a-defective-circuit-breaker","title":{"rendered":"D\u1ea5u hi\u1ec7u c\u1ee7a b\u1ed9 ng\u1eaft m\u1ea1ch b\u1ecb l\u1ed7i l\u00e0 g\u00ec?"},"content":{"rendered":"<p>Ch\u1ee9c n\u0103ng ch\u00ednh c\u1ee7a m\u1ed9t <a href=\"https:\/\/www.yroele.com\/vi\/circuit-breaker\/\" target=\"_blank\" rel=\"noopener\">ng\u1eaft m\u1ea1ch<\/a> nh\u1eb1m b\u1ea3o v\u1ec7 s\u1ef1 v\u1eadn h\u00e0nh an to\u00e0n c\u1ee7a h\u1ec7 th\u1ed1ng \u0111i\u1ec7n. Tuy nhi\u00ean, gi\u1ed1ng nh\u01b0 h\u1ea7u h\u1ebft c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n, c\u1ea7u dao c\u00f3 th\u1ec3 g\u1eb7p m\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 khi th\u1eddi gian s\u1eed d\u1ee5ng t\u0103ng l\u00ean. M\u1ed9t s\u1ed1 v\u1ea5n \u0111\u1ec1 kh\u00f4ng bi\u1ec3u hi\u1ec7n tri\u1ec7u ch\u1ee9ng r\u00f5 r\u00e0ng \u1edf giai \u0111o\u1ea1n \u0111\u1ea7u m\u00e0 \u0111\u00fang h\u01a1n l\u00e0 nh\u1eafc nh\u1edf b\u1ea1n m\u1ed9t c\u00e1ch tinh t\u1ebf r\u1eb1ng c\u00f3 nh\u1eefng r\u1ee7i ro trong h\u1ec7 th\u1ed1ng \u0111i\u1ec7n. N\u1ebfu b\u1ecf qua nh\u1eefng d\u1ea5u hi\u1ec7u n\u00e0y c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn an to\u00e0n \u0111i\u1ec7n, th\u1eadm ch\u00ed d\u1eabn \u0111\u1ebfn h\u01b0 h\u1ecfng thi\u1ebft b\u1ecb.<\/p>\n<p>B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u1edbi thi\u1ec7u nh\u1eefng hi\u1ec7n t\u01b0\u1ee3ng b\u1ea5t th\u01b0\u1eddng th\u01b0\u1eddng g\u1eb7p c\u1ee7a <a href=\"https:\/\/www.yroele.com\/vi\/circuit-breaker\/\" target=\"_blank\" rel=\"noopener\">b\u1ed9 ng\u1eaft m\u1ea1ch<\/a>, gi\u1ea3i th\u00edch \u00fd ngh\u0129a c\u1ee7a c\u00e1c hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y v\u00e0 \u0111\u01b0a ra c\u00e1c g\u1ee3i \u00fd x\u1eed l\u00fd t\u01b0\u01a1ng \u1ee9ng.<\/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\/what-are-the-signs-of-a-defective-circuit-breaker\/#Common_Indicators_of_Circuit_Breaker_Defects\" >C\u00e1c d\u1ea5u hi\u1ec7u th\u01b0\u1eddng g\u1eb7p c\u1ee7a l\u1ed7i b\u1ed9 ng\u1eaft m\u1ea1ch<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.yroele.com\/vi\/news\/what-are-the-signs-of-a-defective-circuit-breaker\/#Frequent_and_Unexplained_Tripping\" >v\u1ea5p ng\u00e3 th\u01b0\u1eddng xuy\u00ean v\u00e0 kh\u00f4ng gi\u1ea3i th\u00edch \u0111\u01b0\u1ee3c<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.yroele.com\/vi\/news\/what-are-the-signs-of-a-defective-circuit-breaker\/#Visible_Damage_or_Discoloration_on_the_Exterior\" >Thi\u1ec7t h\u1ea1i c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y ho\u1eb7c s\u1ef1 \u0111\u1ed5i m\u00e0u \u1edf b\u00ean ngo\u00e0i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.yroele.com\/vi\/news\/what-are-the-signs-of-a-defective-circuit-breaker\/#Abnormal_Heating_During_Operation\" >Nhi\u1ec7t \u0111\u1ed9 b\u1ea5t th\u01b0\u1eddng trong qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.yroele.com\/vi\/news\/what-are-the-signs-of-a-defective-circuit-breaker\/#Inability_to_Maintain_Reset_State\" >Kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng duy tr\u00ec tr\u1ea1ng th\u00e1i thi\u1ebft l\u1eadp l\u1ea1i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.yroele.com\/vi\/news\/what-are-the-signs-of-a-defective-circuit-breaker\/#Presence_of_Abnormal_Noise\" >S\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a ti\u1ebfng \u1ed3n b\u1ea5t th\u01b0\u1eddng<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.yroele.com\/vi\/news\/what-are-the-signs-of-a-defective-circuit-breaker\/#Mechanical_Sticking\" >D\u00ednh c\u01a1 kh\u00ed<\/a><\/li><\/ul><\/li><\/ul><\/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\/what-are-the-signs-of-a-defective-circuit-breaker\/#If_I_Want_to_Troubleshoot_a_Circuit_Breaker_How_Should_I_Proceed\" >N\u1ebfu t\u00f4i mu\u1ed1n kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 c\u1ea7u dao, t\u00f4i n\u00ean ti\u1ebfn h\u00e0nh nh\u01b0 th\u1ebf n\u00e0o?<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.yroele.com\/vi\/news\/what-are-the-signs-of-a-defective-circuit-breaker\/#Basic_Safety_Checks\" >Ki\u1ec3m tra an to\u00e0n c\u01a1 b\u1ea3n<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.yroele.com\/vi\/news\/what-are-the-signs-of-a-defective-circuit-breaker\/#Check_the_Load_Condition\" >Ki\u1ec3m tra t\u00ecnh tr\u1ea1ng t\u1ea3i<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.yroele.com\/vi\/news\/what-are-the-signs-of-a-defective-circuit-breaker\/#Testing_with_a_Multimeter\" >Ki\u1ec3m tra b\u1eb1ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.yroele.com\/vi\/news\/what-are-the-signs-of-a-defective-circuit-breaker\/#Key_Takeaways\" >B\u00e0i h\u1ecdc ch\u00ednh<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Common_Indicators_of_Circuit_Breaker_Defects\"><\/span><strong>C\u00e1c d\u1ea5u hi\u1ec7u th\u01b0\u1eddng g\u1eb7p c\u1ee7a l\u1ed7i b\u1ed9 ng\u1eaft m\u1ea1ch<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h4><span class=\"ez-toc-section\" id=\"Frequent_and_Unexplained_Tripping\"><\/span><strong>v\u1ea5p ng\u00e3 th\u01b0\u1eddng xuy\u00ean v\u00e0 kh\u00f4ng gi\u1ea3i th\u00edch \u0111\u01b0\u1ee3c<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>N\u1ebfu m\u1ee9c ti\u00eau th\u1ee5 \u0111i\u1ec7n kh\u00f4ng t\u0103ng v\u00e0 kh\u00f4ng c\u00f3 thi\u1ebft b\u1ecb m\u1edbi n\u00e0o \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i, nh\u01b0ng c\u1ea7u dao th\u01b0\u1eddng xuy\u00ean ng\u1eaft m\u1ea1ch khi t\u1ea3i b\u00ecnh th\u01b0\u1eddng, \u0111i\u1ec1u n\u00e0y th\u01b0\u1eddng cho th\u1ea5y c\u00e1c b\u1ed9 ph\u1eadn b\u00ean trong c\u1ee7a thi\u1ebft b\u1ecb \u0111\u00e3 b\u1ecb hao m\u00f2n v\u00e0 m\u1ea5t kh\u1ea3 n\u0103ng x\u1eed l\u00fd d\u00f2ng \u0111i\u1ec7n ch\u00ednh x\u00e1c. V\u00ec trong tr\u01b0\u1eddng h\u1ee3p b\u00ecnh th\u01b0\u1eddng, c\u1ea7u dao kh\u1ecfe m\u1ea1nh ch\u1ec9 c\u1eaft m\u1ea1ch khi ph\u00e1t hi\u1ec7n qu\u00e1 t\u1ea3i ho\u1eb7c l\u1ed7i.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Visible_Damage_or_Discoloration_on_the_Exterior\"><\/span><strong>Thi\u1ec7t h\u1ea1i c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y ho\u1eb7c s\u1ef1 \u0111\u1ed5i m\u00e0u \u1edf b\u00ean ngo\u00e0i<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>N\u1ebfu ph\u00e1t hi\u1ec7n th\u1ea5y v\u1ebft ch\u00e1y, tan ch\u1ea3y, v\u1ebft n\u1ee9t ho\u1eb7c thay \u0111\u1ed5i m\u00e0u s\u1eafc tr\u00ean <a href=\"https:\/\/www.yroele.com\/vi\/circuit-breaker\/\" target=\"_blank\" rel=\"noopener\">ng\u1eaft m\u1ea1ch<\/a> nh\u00e0 \u1edf, nh\u1eefng nguy\u00ean nh\u00e2n n\u00e0y th\u01b0\u1eddng do qu\u00e1 nhi\u1ec7t c\u1ee5c b\u1ed9 ho\u1eb7c c\u00e1c v\u1ea5n \u0111\u1ec1 ti\u1ebfp x\u00fac b\u00ean trong. C\u1ea7u dao c\u00f3 hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m tra k\u1ecbp th\u1eddi \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh xem c\u00f3 c\u1ea7n thay th\u1ebf hay kh\u00f4ng.<\/p>\n<p>C\u00e1c thi\u1ec7t h\u1ea1i th\u01b0\u1eddng g\u1eb7p bao g\u1ed3m:<\/p>\n<ul>\n<li>C\u00f3 v\u1ebft ch\u00e1y s\u00e9m ho\u1eb7c v\u00f9ng ch\u00e1y s\u00e9m g\u1ea7n kh\u1ed1i thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i<\/li>\n<li>V\u1ecf m\u1ec1m \u0111i v\u00e0 bi\u1ebfn d\u1ea1ng<\/li>\n<li>\u0102n m\u00f2n \u0111\u00e3 x\u1ea3y ra t\u1ea1i nh\u00e0 ga<\/li>\n<\/ul>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-5234 aligncenter\" src=\"https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/11\/Visible-Damage-or-Discoloration-on-the-Exterior.webp?quality=85&strip=all\" alt=\"Thi\u1ec7t h\u1ea1i c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y ho\u1eb7c s\u1ef1 \u0111\u1ed5i m\u00e0u \u1edf b\u00ean ngo\u00e0i\" width=\"800\" height=\"499\" srcset=\"https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/11\/Visible-Damage-or-Discoloration-on-the-Exterior.webp?quality=85&strip=all 800w, https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/11\/Visible-Damage-or-Discoloration-on-the-Exterior-300x187.webp?quality=85&strip=all 300w, https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/11\/Visible-Damage-or-Discoloration-on-the-Exterior-768x479.webp?quality=85&strip=all 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Abnormal_Heating_During_Operation\"><\/span><strong>Nhi\u1ec7t \u0111\u1ed9 b\u1ea5t th\u01b0\u1eddng trong qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>B\u1ed9 ng\u1eaft m\u1ea1ch s\u1ebd t\u1ea1o ra nhi\u1ec7t nh\u1eb9 trong qu\u00e1 tr\u00ecnh ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng, \u0111i\u1ec1u n\u00e0y l\u00e0 b\u00ecnh th\u01b0\u1eddng. Tuy nhi\u00ean, n\u1ebfu nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi b\u00ecnh th\u01b0\u1eddng, \u0111i\u1ec1u \u0111\u00f3 th\u01b0\u1eddng cho th\u1ea5y \u0111i\u1ec7n tr\u1edf qu\u00e1 m\u1ee9c ho\u1eb7c t\u1ea3i qu\u00e1 cao. Qu\u00e1 nhi\u1ec7t li\u00ean t\u1ee5c s\u1ebd l\u00e0m t\u0103ng t\u1ed1c \u0111\u1ed9 l\u00e3o h\u00f3a c\u1ee7a thi\u1ebft b\u1ecb, \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn tu\u1ed5i th\u1ecd s\u1eed d\u1ee5ng c\u1ee7a thi\u1ebft b\u1ecb v\u00e0 c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh ngu\u1ed3n \u0111\u00e1nh l\u1eeda ti\u1ec1m \u1ea9n, v\u00ec v\u1eady c\u1ea7n gi\u1ea3i quy\u1ebft k\u1ecbp th\u1eddi.<\/p>\n<p>H\u00e3y ch\u00fa \u00fd \u0111\u1ebfn s\u1ef1 an to\u00e0n khi ki\u1ec3m tra nhi\u1ec7t \u0111\u1ed9; tr\u00e1nh ch\u1ea1m v\u00e0o c\u1ea7u dao khi tay \u01b0\u1edbt ho\u1eb7c khi \u0111\u1ee9ng tr\u00ean v\u1eadt li\u1ec7u d\u1eabn \u0111i\u1ec7n.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Inability_to_Maintain_Reset_State\"><\/span><strong>Kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng duy tr\u00ec tr\u1ea1ng th\u00e1i thi\u1ebft l\u1eadp l\u1ea1i<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Khi m\u1ed9t<a href=\"https:\/\/www.yroele.com\/vi\/circuit-breaker\/\" target=\"_blank\" rel=\"noopener\"> ng\u1eaft m\u1ea1ch<\/a> ng\u1eaft v\u00e0 c\u1ed1 g\u1eafng k\u1ebft n\u1ed1i l\u1ea1i, n\u1ebfu c\u00f4ng t\u1eafc kh\u00f4ng th\u1ec3 duy tr\u00ec \u1edf v\u1ecb tr\u00ed \u0111\u00f3ng m\u00e0 ngay l\u1eadp t\u1ee9c b\u1eadt tr\u1edf l\u1ea1i tr\u1ea1ng th\u00e1i m\u1edf, t\u00ecnh tr\u1ea1ng n\u00e0y c\u00f3 th\u1ec3 do \u0111o\u1ea3n m\u1ea1ch \u1edf m\u1ea1ch ngo\u00e0i ho\u1eb7c h\u1ecfng c\u1ea5u tr\u00fac c\u01a1 h\u1ecdc b\u00ean trong c\u1ea7u dao, khi\u1ebfn c\u1ea7u dao kh\u00f4ng th\u1ec3 kh\u00f3a b\u00ecnh th\u01b0\u1eddng.<\/p>\n<p><img decoding=\"async\" class=\"size-full wp-image-5235 aligncenter\" src=\"https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/11\/Inability-to-Maintain-Reset-State.webp?quality=85&strip=all\" alt=\"Kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng duy tr\u00ec tr\u1ea1ng th\u00e1i thi\u1ebft l\u1eadp l\u1ea1i\" width=\"800\" height=\"800\" srcset=\"https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/11\/Inability-to-Maintain-Reset-State.webp?quality=85&strip=all 800w, https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/11\/Inability-to-Maintain-Reset-State-300x300.webp?quality=85&strip=all 300w, https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/11\/Inability-to-Maintain-Reset-State-150x150.webp?quality=85&strip=all 150w, https:\/\/i1.wp.com\/www.yroele.com\/wp-content\/uploads\/2025\/11\/Inability-to-Maintain-Reset-State-768x768.webp?quality=85&strip=all 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Presence_of_Abnormal_Noise\"><\/span><strong>S\u1ef1 hi\u1ec7n di\u1ec7n c\u1ee7a ti\u1ebfng \u1ed3n b\u1ea5t th\u01b0\u1eddng<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Nh\u1eefng \u00e2m thanh \u00f9 \u00f9, r\u0103ng r\u1eafc ho\u1eb7c va ch\u1ea1m kim lo\u1ea1i trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh cho th\u1ea5y c\u00f3 h\u1ed3 quang \u0111i\u1ec7n, k\u1ebft n\u1ed1i l\u1ecfng ho\u1eb7c l\u1ed7i b\u1ed9 ph\u1eadn b\u00ean trong. Ti\u1ebfng \u1ed3n nh\u1eb9 khi t\u1ea3i cao l\u00e0 b\u00ecnh th\u01b0\u1eddng, nh\u01b0ng ti\u1ebfng \u1ed3n dai d\u1eb3ng c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m tra ho\u1eb7c thay th\u1ebf c\u1ea7u dao ngay l\u1eadp t\u1ee9c.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Mechanical_Sticking\"><\/span><strong>D\u00ednh c\u01a1 kh\u00ed<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Khi k\u00e9o b\u1eb1ng tay <a href=\"https:\/\/www.yroele.com\/vi\/circuit-breaker\/\" target=\"_blank\" rel=\"noopener\">ng\u1eaft m\u1ea1ch<\/a>, n\u1ebfu b\u1ea1n c\u1ea3m th\u1ea5y n\u00f3 b\u1ecb k\u1eb9t, l\u00f2 xo b\u1ecb h\u1ecfng ho\u1eb7c c\u1ea7n g\u1ea1t kh\u00f4ng tr\u1edf v\u1ec1 v\u1ecb tr\u00ed ban \u0111\u1ea7u th\u00ec ch\u1ee9ng t\u1ecf c\u00e1c b\u1ed9 ph\u1eadn c\u01a1 kh\u00ed b\u1ecb m\u00f2n ho\u1eb7c k\u1ebft c\u1ea5u b\u00ean trong b\u1ecb h\u1ecfng.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"If_I_Want_to_Troubleshoot_a_Circuit_Breaker_How_Should_I_Proceed\"><\/span><strong>N\u1ebfu t\u00f4i mu\u1ed1n kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 c\u1ea7u dao, t\u00f4i n\u00ean ti\u1ebfn h\u00e0nh nh\u01b0 th\u1ebf n\u00e0o?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Vi\u1ec7c kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 c\u1ea7u dao \u0111\u00f2i h\u1ecfi ph\u1ea3i ch\u00fa \u00fd \u0111\u1ebfn s\u1ef1 an to\u00e0n, s\u1eed d\u1ee5ng \u0111\u00fang c\u00f4ng c\u1ee5 v\u00e0 s\u1ef1 ki\u00ean nh\u1eabn. C\u00e1c v\u1ea5n \u0111\u1ec1 ph\u1ee9c t\u1ea1p h\u01a1n n\u00ean \u0111\u01b0\u1ee3c x\u1eed l\u00fd b\u1edfi m\u1ed9t th\u1ee3 \u0111i\u1ec7n chuy\u00ean nghi\u1ec7p. Ch\u00fang t\u00f4i c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n m\u1ed9t s\u1ed1 ki\u1ec3m tra c\u01a1 b\u1ea3n.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Basic_Safety_Checks\"><\/span><strong>Ki\u1ec3m tra an to\u00e0n c\u01a1 b\u1ea3n<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<ul>\n<li>C\u1eaft \u0111i\u1ec7n tr\u01b0\u1edbc khi ch\u1ea1m v\u00e0o b\u1ea5t k\u1ef3 b\u1ed9 ph\u1eadn n\u00e0o<\/li>\n<li>Ki\u1ec3m tra v\u1ecf xem c\u00f3 v\u1ebft ch\u00e1y ho\u1eb7c d\u1ea5u hi\u1ec7u qu\u00e1 n\u00f3ng kh\u00f4ng<\/li>\n<li>Vui l\u00f2ng x\u00e1c nh\u1eadn xem h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n c\u00f3 ch\u1eb7t ch\u1ebd v\u00e0 \u0111\u00e1ng tin c\u1eady kh\u00f4ng<\/li>\n<li>Ki\u1ec3m tra m\u1ecdi v\u1ea5n \u0111\u1ec1 nh\u01b0 \u0103n m\u00f2n, b\u1ee5i ho\u1eb7c h\u01a1i \u1ea9m<\/li>\n<\/ul>\n<h4><span class=\"ez-toc-section\" id=\"Check_the_Load_Condition\"><\/span><strong>Ki\u1ec3m tra t\u00ecnh tr\u1ea1ng t\u1ea3i<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>N\u1ebfu <a href=\"https:\/\/www.yroele.com\/vi\/circuit-breaker\/\" target=\"_blank\" rel=\"noopener\">ng\u1eaft m\u1ea1ch<\/a> ng\u1eaft ngay c\u1ea3 khi t\u1ea3i b\u00ecnh th\u01b0\u1eddng, h\u00e3y th\u1eed th\u00e1o m\u1ed9t s\u1ed1 thi\u1ebft b\u1ecb r\u1ed3i kh\u00f4i ph\u1ee5c ngu\u1ed3n \u0111i\u1ec7n \u0111\u1ec3 ki\u1ec3m tra. N\u1ebfu vi\u1ec7c ng\u1eaft d\u1eebng l\u1ea1i th\u00ec c\u00f3 th\u1ec3 l\u00e0 do qu\u00e1 t\u1ea3i ho\u1eb7c ph\u00e2n ph\u1ed1i kh\u00f4ng \u0111\u1ec1u.<\/p>\n<p>Tuy nhi\u00ean, n\u1ebfu n\u00f3 v\u1eabn ng\u1eaft th\u01b0\u1eddng xuy\u00ean ngay c\u1ea3 khi t\u1ea3i nh\u1eb9 th\u00ec c\u00f3 kh\u1ea3 n\u0103ng b\u1ed9 ng\u1eaft m\u1ea1ch \u0111\u00e3 b\u1ecb h\u1ecfng.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Testing_with_a_Multimeter\"><\/span><strong>Ki\u1ec3m tra b\u1eb1ng \u0111\u1ed3ng h\u1ed3 v\u1ea1n n\u0103ng<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>T\u00ecnh tr\u1ea1ng b\u00ean trong c\u1ee7a b\u1ed9 ng\u1eaft m\u1ea1ch c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 ban \u0111\u1ea7u b\u1eb1ng c\u00e1ch ki\u1ec3m tra tr\u1ea1ng th\u00e1i b\u1eadt-t\u1eaft, \u0111i\u1ec7n \u00e1p ho\u1eb7c gi\u00e1 tr\u1ecb \u0111i\u1ec7n tr\u1edf c\u1ee7a n\u00f3. N\u1ebfu s\u1ed1 \u0111\u1ecdc dao \u0111\u1ed9ng \u0111\u00e1ng k\u1ec3 ho\u1eb7c kh\u00f4ng \u1ed5n \u0111\u1ecbnh, trong h\u1ea7u h\u1ebft c\u00e1c tr\u01b0\u1eddng h\u1ee3p, \u0111i\u1ec1u \u0111\u00f3 cho th\u1ea5y c\u00e1c b\u1ed9 ph\u1eadn b\u00ean trong c\u1ee7a c\u1ea7u dao \u0111\u00e3 c\u0169, h\u01b0 h\u1ecfng ho\u1eb7c ti\u1ebfp x\u00fac k\u00e9m.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Key_Takeaways\"><\/span><strong>B\u00e0i h\u1ecdc ch\u00ednh<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Vi\u1ec7c x\u00e1c \u0111\u1ecbnh c\u00e1c t\u00edn hi\u1ec7u c\u1ea3nh b\u00e1o s\u1edbm, ch\u1eb3ng h\u1ea1n nh\u01b0 v\u1ea5p ng\u00e3 th\u01b0\u1eddng xuy\u00ean, \u00e2m thanh b\u1ea5t th\u01b0\u1eddng, h\u01b0 h\u1ecfng v\u1eadt l\u00fd ho\u1eb7c ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng \u1ed5n \u0111\u1ecbnh, c\u00f3 th\u1ec3 ng\u0103n ng\u1eeba c\u00e1c s\u1ef1 c\u1ed1 nh\u1ecf leo thang th\u00e0nh m\u1ed1i nguy hi\u1ec3m l\u1edbn. Ki\u1ec3m tra tr\u1ef1c quan th\u01b0\u1eddng xuy\u00ean v\u00e0 ch\u00fa \u00fd k\u1ecbp th\u1eddi \u0111\u1ebfn c\u00e1c t\u00ecnh tr\u1ea1ng b\u1ea5t th\u01b0\u1eddng l\u00e0 tuy\u1ebfn ph\u00f2ng th\u1ee7 \u0111\u1ea7u ti\u00ean c\u1ee7a b\u1ea1n tr\u01b0\u1edbc c\u00e1c s\u1ef1 c\u1ed1 v\u1ec1 \u0111i\u1ec7n. M\u1eb7c d\u00f9 vi\u1ec7c kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 c\u01a1 b\u1ea3n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u0111\u1ed1i v\u1edbi c\u00e1c s\u1ef1 c\u1ed1 nh\u1ecf nh\u01b0ng m\u1ecdi t\u00ecnh hu\u1ed1ng li\u00ean quan \u0111\u1ebfn r\u1ee7i ro an to\u00e0n ho\u1eb7c c\u00e1c s\u1ef1 c\u1ed1 \u0111ang di\u1ec5n ra \u0111\u1ec1u c\u1ea7n c\u00f3 d\u1ecbch v\u1ee5 \u0111i\u1ec7n chuy\u00ean nghi\u1ec7p.<\/p>\n<p>M\u1ed9t s\u1ef1 \u0111\u00e1ng tin c\u1eady <a href=\"https:\/\/www.yroele.com\/vi\/circuit-breaker\/\" target=\"_blank\" rel=\"noopener\">ng\u1eaft m\u1ea1ch<\/a> l\u00e0 c\u1ed1t l\u00f5i cho s\u1ef1 v\u1eadn h\u00e0nh \u1ed5n \u0111\u1ecbnh c\u1ee7a h\u1ec7 th\u1ed1ng \u0111i\u1ec7n. B\u1ea3o tr\u00ec \u0111\u00fang c\u00e1ch v\u00e0 thay th\u1ebf k\u1ecbp th\u1eddi c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n l\u00e2u d\u00e0i, b\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb v\u00e0 gi\u1eef cho ng\u00f4i nh\u00e0 ho\u1eb7c h\u1ec7 th\u1ed1ng k\u1ef9 thu\u1eadt c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh v\u00e0 li\u00ean t\u1ee5c.<\/p>","protected":false},"excerpt":{"rendered":"<p>B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u1edbi thi\u1ec7u nh\u1eefng hi\u1ec7n t\u01b0\u1ee3ng b\u1ea5t th\u01b0\u1eddng th\u01b0\u1eddng g\u1eb7p c\u1ee7a c\u1ea7u dao, gi\u1ea3i th\u00edch \u00fd ngh\u0129a c\u1ee7a nh\u1eefng hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y v\u00e0 \u0111\u01b0a ra nh\u1eefng g\u1ee3i \u00fd x\u1eed l\u00fd t\u01b0\u01a1ng \u1ee9ng.<\/p>","protected":false},"featured_media":5233,"template":"","meta":{"_acf_changed":false,"footnotes":""},"blog_category":[20],"class_list":["post-5232","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\/5232","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":1,"href":"https:\/\/www.yroele.com\/vi\/wp-json\/wp\/v2\/blog\/5232\/revisions"}],"predecessor-version":[{"id":5236,"href":"https:\/\/www.yroele.com\/vi\/wp-json\/wp\/v2\/blog\/5232\/revisions\/5236"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.yroele.com\/vi\/wp-json\/wp\/v2\/media\/5233"}],"wp:attachment":[{"href":"https:\/\/www.yroele.com\/vi\/wp-json\/wp\/v2\/media?parent=5232"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.yroele.com\/vi\/wp-json\/wp\/v2\/blog_category?post=5232"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}