{"id":1409,"date":"2026-09-08T02:15:23","date_gmt":"2026-09-08T02:15:23","guid":{"rendered":"https:\/\/lanshanelectric.com\/?p=1409"},"modified":"2026-09-08T02:15:26","modified_gmt":"2026-09-08T02:15:26","slug":"kim-loai-boc-switchgear-vs-kim-loai-kem-theo","status":"publish","type":"post","link":"https:\/\/lanshanelectric.com\/vi\/metal-clad-switchgear-vs-metal-enclosed\/","title":{"rendered":"Thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch b\u1ecdc kim lo\u1ea1i so v\u1edbi kim lo\u1ea1i k\u00e8m theo: \u0110i\u1ec1u g\u00ec quan tr\u1ecdng?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i v\u00e0 thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft k\u00e8m theo kim lo\u1ea1i c\u00f3 th\u1ec3 tr\u00f4ng gi\u1ed1ng nhau trong m\u1ed9t \u0111\u1ec1 xu\u1ea5t. c\u1ea3 hai m\u00f4 t\u1ea3 \u0111\u1ec1u \u0111\u1ec1 xu\u1ea5t thi\u1ebft b\u1ecb b\u00ean trong v\u1ecf kim lo\u1ea1i, nh\u01b0ng kh\u00f4ng cho ng\u01b0\u1eddi mua bi\u1ebft m\u1ecdi th\u1ee9 v\u1ec1 quy\u1ec1n truy c\u1eadp b\u1ea3o tr\u00ec, hi\u1ec7u su\u1ea5t l\u1ed7i ho\u1eb7c y\u00eau c\u1ea7u l\u1eafp \u0111\u1eb7t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 kh\u00e1c bi\u1ec7t quan tr\u1ecdng nh\u1ea5t khi m\u1ed9t c\u00e1i g\u00ec \u0111\u00f3 c\u1ea7n ch\u00fa \u00fd. m\u1ed9t feeder c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u00f4 l\u1eadp m\u00e0 kh\u00f4ng l\u00e0m gi\u00e1n \u0111o\u1ea1n c\u00e1c m\u1ea1ch kh\u00f4ng li\u00ean quan?C\u00e1c ng\u0103n n\u00e0o v\u1eabn c\u00f2n tr\u00e0n \u0111\u1ea7y n\u0103ng l\u01b0\u1ee3ng?B\u1eb1ng ch\u1ee9ng n\u00e0o h\u1ed7 tr\u1ee3 m\u1ed9t tuy\u00ean b\u1ed1 h\u1ed3 quang-kh\u00e1ng?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H\u01b0\u1edbng d\u1eabn n\u00e0y so s\u00e1nh c\u00e1c thi\u1ebft k\u1ebf th\u00f4ng qua c\u00e1c c\u00e2u h\u1ecfi v\u1eadn h\u00e0nh \u0111\u00f3, gi\u00fap c\u00e1c k\u1ef9 s\u01b0 d\u1ef1 \u00e1n v\u00e0 nh\u00f3m mua s\u1eafm \u0111\u00e1nh gi\u00e1 nhi\u1ec1u h\u01a1n t\u00ean n\u1ed9i c\u00e1c.<\/p>\n\n\n\n<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><h2>M\u1ee5c l\u1ee5c<\/h2><nav><ul><li><a href=\"#what-is-metal-clad-switchgear\">Thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch b\u1ecdc kim lo\u1ea1i l\u00e0 g\u00ec?<\/a><\/li><li><a href=\"#what-does-metal-enclosed-switchgear-actually-mean\">Metal Enclosed Switchgear Th\u1ef1c s\u1ef1 c\u00f3 ngh\u0129a l\u00e0 g\u00ec?<\/a><\/li><li><a href=\"#metal-clad-vs-metal-enclosed-switchgear-at-a-glance\">S\u01a1 l\u01b0\u1ee3c v\u1ec1 Metal Clad vs Metal Enclosed Switchgear<\/a><\/li><li><a href=\"#start-with-the-maintenance-task-not-the-cabinet-label\">B\u1eaft \u0111\u1ea7u v\u1edbi Nhi\u1ec7m v\u1ee5 b\u1ea3o tr\u00ec, kh\u00f4ng ph\u1ea3i Nh\u00e3n t\u1ee7<\/a><\/li><li><a href=\"#read-service-continuity-and-partition-classes-separately\">\u0110\u1ecdc Service Continuity v\u00e0 Partition Classes Ri\u00eang bi\u1ec7t<\/a><\/li><li><a href=\"#is-metal-clad-switchgear-automatically-arc-resistant\">L\u00e0 kim lo\u1ea1i Clad Switchgear t\u1ef1 \u0111\u1ed9ng Arc kh\u00e1ng?<\/a><\/li><li><a href=\"#compare-electrical-ratings-on-an-equal-basis\">So s\u00e1nh x\u1ebfp h\u1ea1ng \u0111i\u1ec7n tr\u00ean c\u01a1 s\u1edf b\u00ecnh \u0111\u1eb3ng<\/a><\/li><li><a href=\"#check-the-complete-room-layout\">Ki\u1ec3m tra B\u1ed1 c\u1ee5c ph\u00f2ng ho\u00e0n ch\u1ec9nh<\/a><\/li><li><a href=\"#match-the-design-to-the-operating-scenario\">Ph\u00f9 h\u1ee3p v\u1edbi thi\u1ebft k\u1ebf v\u1edbi k\u1ecbch b\u1ea3n v\u1eadn h\u00e0nh<\/a><\/li><li><a href=\"#request-evidence-before-approving-the-proposal\">Y\u00eau c\u1ea7u b\u1eb1ng ch\u1ee9ng tr\u01b0\u1edbc khi ph\u00ea duy\u1ec7t \u0111\u1ec1 xu\u1ea5t<\/a><\/li><li><a href=\"#evaluating-a-kyn-28-a-12-configuration\">\u0110\u00e1nh gi\u00e1 m\u1ed9t KYN28A-12 C\u1ea5u h\u00ecnh<\/a><\/li><li><a href=\"#conclusion\">K\u1ebft lu\u1eadn<\/a><\/li><li><a href=\"#faq\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<h2 id=\"what-is-metal-clad-switchgear\" class=\"wp-block-heading\">Thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch b\u1ecdc kim lo\u1ea1i l\u00e0 g\u00ec?<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/KYN28A-12-Armored-Removable-1.jpg\" alt=\"KYN28A-12 Thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch b\u1ecdc kim lo\u1ea1i AC c\u00f3 th\u1ec3 th\u00e1o r\u1eddi b\u1ecdc th\u00e9p\" class=\"wp-image-805\" srcset=\"https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/KYN28A-12-Armored-Removable-1.jpg 800w, https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/KYN28A-12-Armored-Removable-1-300x300.jpg 300w, https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/KYN28A-12-Armored-Removable-1-150x150.jpg 150w, https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/KYN28A-12-Armored-Removable-1-768x768.jpg 768w, https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/KYN28A-12-Armored-Removable-1-600x600.jpg 600w, https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/KYN28A-12-Armored-Removable-1-100x100.jpg 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Kim lo\u1ea1i clad switchgear l\u00e0 m\u1ed9t h\u00ecnh th\u1ee9c c\u1ee5 th\u1ec3 c\u1ee7a thi\u1ebft b\u1ecb kim lo\u1ea1i-bao b\u1ecdc.D\u01b0\u1edbi&nbsp;<a href=\"https:\/\/standards.ieee.org\/ieee\/C37.20.2\/11804\/\" target=\"_blank\" rel=\"noopener\">IEEE C37.20.2<\/a>, c\u00e1c t\u00ednh n\u0103ng x\u00e1c \u0111\u1ecbnh c\u1ee7a n\u00f3 bao g\u1ed3m drawout, c\u1ea7u dao ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng \u0111i\u1ec7n v\u00e0 r\u00e0o c\u1ea3n kim lo\u1ea1i n\u1ed1i \u0111\u1ea5t t\u00e1ch c\u00e1c khu v\u1ef1c ch\u1ee9c n\u0103ng ch\u00ednh. ch\u00fang bao g\u1ed3m xe bu\u00fdt ch\u00ednh, thi\u1ebft b\u1ecb \u0111o \u0111\u1ea1c v\u00e0 c\u00e1c k\u1ebft n\u1ed1i \u0111\u1ebfn ho\u1eb7c \u0111i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ef1 kh\u00e1c bi\u1ec7t h\u1eefu \u00edch l\u00e0 t\u1ed5 ch\u1ee9c n\u1ed9i b\u1ed9, kh\u00f4ng ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 \u0111\u1ed9 d\u00e0y c\u1ee7a v\u1ecf ngo\u00e0i. m\u1ed9t b\u1ea3n v\u1ebd ng\u0103n n\u00ean ti\u1ebft l\u1ed9 c\u00e1ch thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch, thanh c\u00e1i, k\u1ebft n\u1ed1i c\u00e1p v\u00e0 \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi ng\u01b0\u1eddi mua \u0111\u00e1nh gi\u00e1 thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i, b\u1ea3n v\u1ebd \u0111\u00f3 c\u00f3 nhi\u1ec1u th\u00f4ng tin h\u01a1n l\u00e0 m\u1ed9t tuy\u00ean b\u1ed1 chung v\u1ec1 \u201can to\u00e0n n\u00e2ng cao.\u201d Y\u00eau c\u1ea7u nh\u00e0 cung c\u1ea5p x\u00e1c \u0111\u1ecbnh t\u1eebng ng\u0103n v\u00e0 gi\u1ea3i th\u00edch c\u00e1c \u0111i\u1ec1u ki\u1ec7n truy c\u1eadp c\u1ee7a n\u00f3. sau \u0111\u00f3 so s\u00e1nh c\u00e1c \u0111i\u1ec1u ki\u1ec7n \u0111\u00f3 v\u1edbi c\u00f4ng vi\u1ec7c m\u00e0 nh\u00f3m b\u1ea3o tr\u00ec c\u1ee7a b\u1ea1n mong \u0111\u1ee3i th\u1ef1c hi\u1ec7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 bi\u1ebft th\u00f4ng tin c\u01a1 b\u1ea3n v\u1ec1 ch\u1ee9c n\u0103ng ph\u00e2n ph\u1ed1i v\u00e0 b\u1ea3o v\u1ec7 c\u1ee7a thi\u1ebft b\u1ecb, h\u00e3y xem h\u01b0\u1edbng d\u1eabn c\u1ee7a ch\u00fang t\u00f4i&nbsp;<a href=\"https:\/\/lanshanelectric.com\/vi\/thiet-bi-dong-cat-trung-the-la-gi-va-no-hoat-dong-nhu-the-nao\/\">l\u00e0m th\u1ebf n\u00e0o trung th\u1ebf switchgear ho\u1ea1t \u0111\u1ed9ng<\/a>.<\/p>\n\n\n\n<h2 id=\"what-does-metal-enclosed-switchgear-actually-mean\" class=\"wp-block-heading\">Metal Enclosed Switchgear Th\u1ef1c s\u1ef1 c\u00f3 ngh\u0129a l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u201cKim lo\u1ea1i k\u00e8m theo\u201d l\u00e0 m\u00f4 t\u1ea3 r\u1ed9ng h\u01a1n.N\u00f3 kh\u00f4ng t\u1ef1 \u0111\u1ed9ng c\u00f3 ngh\u0129a l\u00e0 thi\u1ebft b\u1ecb \u0111i\u1ec7n \u00e1p th\u1ea5p, m\u1ed9t ng\u0103n kh\u00f4ng chia nh\u1ecf ho\u1eb7c m\u1ed9t s\u1ef1 s\u1eafp x\u1ebfp chuy\u1ec3n \u0111\u1ed5i v\u00e0 c\u1ea7u ch\u00ec.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ed d\u1ee5,&nbsp;<a href=\"https:\/\/webstore.iec.ch\/en\/publication\/96236\" target=\"_blank\" rel=\"noopener\">IEC 62271-200<\/a>&nbsp;bao g\u1ed3m c\u00e1c c\u1ee5m l\u1eafp r\u00e1p kim lo\u1ea1i AC \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c tr\u00ean 1 kV v\u00e0 l\u00ean \u0111\u1ebfn v\u00e0 bao g\u1ed3m 52 kV. Ph\u1ea1m vi c\u1ee7a n\u00f3 bao g\u1ed3m l\u1eafp \u0111\u1eb7t trong nh\u00e0 v\u00e0 ngo\u00e0i tr\u1eddi, v\u1edbi c\u00e1c ng\u0103n c\u00e1ch nhi\u1ec7t b\u1eb1ng kh\u00f4ng kh\u00ed ho\u1eb7c ch\u1ee9a \u0111\u1ea7y ch\u1ea5t l\u1ecfng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong m\u1ed9t \u0111\u1eb7c t\u1ea3 d\u1ef1a tr\u00ean IEEE, \u201cthi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft ng\u1eaft k\u00e8m theo kim lo\u1ea1i\u201d c\u00f3 \u00fd ngh\u0129a c\u1ee5 th\u1ec3 h\u01a1n b\u00ean d\u01b0\u1edbi&nbsp;<a href=\"https:\/\/standards.ieee.org\/ieee\/C37.20.3\/10518\/\" target=\"_blank\" rel=\"noopener\">IEEE C37.20.3<\/a>. Ph\u1ea1m vi c\u1ee7a ti\u00eau chu\u1ea9n \u0111\u00f3 bao g\u1ed3m m\u1ed9t s\u1ed1 s\u1eafp x\u1ebfp thi\u1ebft b\u1ecb, bao g\u1ed3m c\u00f4ng t\u1eafc, c\u1ea7u ch\u00ec v\u00e0 c\u1ea7u dao.Kh\u00f4ng n\u00ean gi\u1ea3m xu\u1ed1ng th\u00e0nh \u201cthi\u1ebft b\u1ecb kh\u00f4ng c\u00f3 c\u1ea7u dao.\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Do \u0111\u00f3, so s\u00e1nh thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i v\u1edbi \u201cthi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft k\u00e8m theo kim lo\u1ea1i\u201d \u0111\u00f2i h\u1ecfi m\u1ed9t s\u1ef1 l\u00e0m r\u00f5 tr\u01b0\u1edbc ti\u00ean: \u0111\u1ec1 xu\u1ea5t th\u1ee9 hai m\u00f4 t\u1ea3 l\u1eafp r\u00e1p v\u00e0 ti\u00eau chu\u1ea9n th\u1ef1c t\u1ebf n\u00e0o?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t so s\u00e1nh c\u00f3 \u00fd ngh\u0129a b\u1eaft \u0111\u1ea7u v\u1edbi hai thi\u1ebft k\u1ebf \u0111\u01b0\u1ee3c ghi l\u1ea1i ch\u1ee9 kh\u00f4ng ph\u1ea3i hai nh\u00e3n \u0111\u01b0\u1ee3c coi l\u00e0 \u0111\u1ed1i l\u1eadp nhau.<\/p>\n\n\n\n<h2 id=\"metal-clad-vs-metal-enclosed-switchgear-at-a-glance\" class=\"wp-block-heading\">S\u01a1 l\u01b0\u1ee3c v\u1ec1 Metal Clad vs Metal Enclosed Switchgear<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1eed d\u1ee5ng b\u1ea3ng n\u00e0y nh\u01b0 m\u1ed9t c\u00f4ng c\u1ee5 s\u00e0ng l\u1ecdc \u0111\u1ec1 xu\u1ea5t.N\u00f3 t\u00e1ch thu\u1eadt ng\u1eef x\u00e2y d\u1ef1ng t\u1eeb hi\u1ec7u su\u1ea5t c\u1ea7n x\u00e1c nh\u1eadn \u0111\u1ed9c l\u1eadp.S\u1ef1 ph\u00e2n bi\u1ec7t x\u00e2y d\u1ef1ng theo ph\u1ea1m vi IEEE t\u01b0\u01a1ng \u1ee9ng; c\u00e1c h\u00e0ng c\u00f2n l\u1ea1i l\u00e0 c\u00e1c c\u00e2u h\u1ecfi \u0111\u1ec3 gi\u1ea3i quy\u1ebft v\u1edbi c\u00e1c t\u00e0i li\u1ec7u d\u1ef1 \u00e1n.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\"><strong>\u0110i\u1ec3m so s\u00e1nh<\/strong><\/th><th class=\"has-text-align-left\" data-align=\"left\"><strong>Kim lo\u1ea1i clad switchgear<\/strong><\/th><th class=\"has-text-align-left\" data-align=\"left\"><strong>C\u00e1c thi\u1ebft k\u1ebf b\u1ecdc kim lo\u1ea1i kh\u00e1c<\/strong><\/th><th class=\"has-text-align-left\" data-align=\"left\"><strong>B\u1eb1ng ch\u1ee9ng \u0111\u1ec3 y\u00eau c\u1ea7u<\/strong><\/th><\/tr><\/thead><tbody><tr><td class=\"has-text-align-left\" data-align=\"left\">X\u00e2y d\u1ef1ng<\/td><td class=\"has-text-align-left\" data-align=\"left\">Ph\u00e2n chia \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng c\u00e1c r\u00e0o ch\u1eafn kim lo\u1ea1i n\u1ed1i \u0111\u1ea5t theo IEEE C37.20.2<\/td><td class=\"has-text-align-left\" data-align=\"left\">S\u1ef1 s\u1eafp x\u1ebfp ph\u1ee5 thu\u1ed9c v\u00e0o ti\u00eau chu\u1ea9n v\u00e0 thi\u1ebft k\u1ebf \u00e1p d\u1ee5ng<\/td><td class=\"has-text-align-left\" data-align=\"left\">B\u1ea3n v\u1ebd ng\u0103n v\u00e0 ti\u00eau chu\u1ea9n c\u00f4ng b\u1ed1<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Thi\u1ebft b\u1ecb chuy\u1ec3n m\u1ea1ch<\/td><td class=\"has-text-align-left\" data-align=\"left\">M\u00e1y r\u00fat, m\u00e1y c\u1eaft v\u1eadn h\u00e0nh b\u1eb1ng \u0111i\u1ec7n theo IEEE C37.20.2<\/td><td class=\"has-text-align-left\" data-align=\"left\">C\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00f4ng t\u1eafc, c\u1ea7u ch\u00ec ho\u1eb7c c\u1ea7u dao<\/td><td class=\"has-text-align-left\" data-align=\"left\">L\u1ecbch tr\u00ecnh thi\u1ebft b\u1ecb v\u00e0 nhi\u1ec7m v\u1ee5 chuy\u1ec3n \u0111\u1ed5i<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Truy c\u1eadp b\u1ea3o tr\u00ec<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u0110\u00e1nh gi\u00e1 t\u1eebng nhi\u1ec7m v\u1ee5 b\u1ea3o tr\u00ec \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u0110\u00e1nh gi\u00e1 t\u1eebng nhi\u1ec7m v\u1ee5 b\u1ea3o tr\u00ec \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t<\/td><td class=\"has-text-align-left\" data-align=\"left\">H\u01b0\u1edbng d\u1eabn truy c\u1eadp v\u00e0 ranh gi\u1edbi c\u00e1ch ly<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">Hi\u1ec7u su\u1ea5t h\u1ed3 quang b\u00ean trong<\/td><td class=\"has-text-align-left\" data-align=\"left\">Kh\u00f4ng suy ra t\u1eeb t\u00ean c\u00f4ng tr\u00ecnh<\/td><td class=\"has-text-align-left\" data-align=\"left\">Kh\u00f4ng suy ra t\u1eeb t\u00ean c\u00f4ng tr\u00ecnh<\/td><td class=\"has-text-align-left\" data-align=\"left\">B\u1eb1ng ch\u1ee9ng ki\u1ec3m tra \u00e1p d\u1ee5ng v\u00e0 \u0111i\u1ec1u ki\u1ec7n l\u1eafp \u0111\u1eb7t<\/td><\/tr><tr><td class=\"has-text-align-left\" data-align=\"left\">S\u1ef1 ph\u00f9 h\u1ee3p c\u1ee7a d\u1ef1 \u00e1n<\/td><td class=\"has-text-align-left\" data-align=\"left\">So s\u00e1nh v\u1edbi c\u00e1c y\u00eau c\u1ea7u v\u1eadn h\u00e0nh<\/td><td class=\"has-text-align-left\" data-align=\"left\">So s\u00e1nh v\u1edbi c\u00e1c y\u00eau c\u1ea7u t\u01b0\u01a1ng t<\/td><td class=\"has-text-align-left\" data-align=\"left\">X\u1ebfp h\u1ea1ng, b\u1ed1 c\u1ee5c v\u00e0 sai l\u1ec7ch k\u1ef9 thu\u1eadt \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea3ng c\u1ed1 t\u00ecnh tr\u00e1nh tuy\u00ean b\u1ed1 m\u1ed9t danh m\u1ee5c ph\u1ed5 bi\u1ebfn t\u1ed1t h\u01a1n. m\u1ed9t \u0111\u1ec1 xu\u1ea5t ch\u1ec9 tr\u1edf n\u00ean th\u00edch h\u1ee3p h\u01a1n khi kh\u1ea3 n\u0103ng \u0111\u01b0\u1ee3c ghi l\u1ea1i c\u1ee7a n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi c\u00f4ng vi\u1ec7c.<\/p>\n\n\n\n<h2 id=\"start-with-the-maintenance-task-not-the-cabinet-label\" class=\"wp-block-heading\">B\u1eaft \u0111\u1ea7u v\u1edbi Nhi\u1ec7m v\u1ee5 b\u1ea3o tr\u00ec, kh\u00f4ng ph\u1ea3i Nh\u00e3n t\u1ee7<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Khi l\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i, h\u00e3y vi\u1ebft ra c\u00e1c ho\u1ea1t \u0111\u1ed9ng b\u1ea3o tr\u00ec quan tr\u1ecdng cho c\u01a1 s\u1edf. \u201cB\u1ea3o tr\u00ec d\u1ec5 d\u00e0ng\u201d l\u00e0 qu\u00e1 r\u1ed9ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1. ki\u1ec3m tra Breaker, ki\u1ec3m tra c\u00e1p v\u00e0 c\u00f4ng vi\u1ec7c thanh c\u00e1i n\u00ean \u0111\u01b0\u1ee3c th\u1ea3o lu\u1eadn ri\u00eang.<\/p>\n\n\n\n<h3 id=\"breaker-inspection-and-replacement\" class=\"wp-block-heading\">Ki\u1ec3m tra v\u00e0 thay th\u1ebf b\u1ed9 ng\u1eaft<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Y\u00eau c\u1ea7u nh\u00e0 cung c\u1ea5p \u0111i b\u1ed9 qua c\u00e1c \u0111i\u1ec1u ki\u1ec7n \u0111\u01b0\u1ee3c ghi l\u1ea1i \u0111\u1ec3 r\u00fat m\u00e1y c\u1eaft. nh\u1eefng g\u00ec ph\u1ea3i \u0111\u01b0\u1ee3c c\u00f4 l\u1eadp? nh\u1eefng g\u00ec v\u1eabn c\u00f2n tr\u00e0n \u0111\u1ea7y n\u0103ng l\u01b0\u1ee3ng \u0111\u1eb1ng sau c\u00e1c r\u00e0o c\u1ea3n?Nh\u1eefng thi\u1ebft b\u1ecb x\u1eed l\u00fd v\u00e0 kh\u00f4ng gian l\u00e0m vi\u1ec7c \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i v\u1edbi b\u1ed9 ng\u1eaft d\u1ef1 ph\u00f2ng \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t, y\u00eau c\u1ea7u x\u00e1c nh\u1eadn kh\u1ea3 n\u0103ng thay th\u1ebf l\u1eabn nhau, x\u1ebfp h\u1ea1ng, k\u1ebft n\u1ed1i \u0111i\u1ec1u khi\u1ec3n v\u00e0 kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch c\u01a1 h\u1ecdc. kh\u00f4ng ph\u00ea duy\u1ec7t m\u1ed9t ph\u1ee5 t\u00f9ng ch\u1ec9 v\u00ec k\u00edch th\u01b0\u1edbc khung c\u1ee7a n\u00f3 xu\u1ea5t hi\u1ec7n t\u01b0\u01a1ng t.<\/p>\n\n\n\n<h3 id=\"cable-and-busbar-access\" class=\"wp-block-heading\">Truy c\u1eadp c\u00e1p v\u00e0 thanh c\u00e1i<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ti\u1ebfp theo, h\u1ecfi v\u1ec1 khoang c\u00e1p \u0111i v\u00e0 bus ch\u00ednh. truy c\u1eadp c\u00f3 y\u00eau c\u1ea7u ranh gi\u1edbi t\u1eaft m\u00e1y kh\u00e1c v\u1edbi ki\u1ec3m tra c\u1ea7u dao kh\u00f4ng?C\u00f3 th\u1ec3 ngu\u1ed3n kh\u00e1c c\u1ea5p n\u0103ng l\u01b0\u1ee3ng cho c\u00e1p?B\u1ea3n v\u1ebd n\u00e0o thi\u1ebft l\u1eadp \u0111i\u1ec1u ki\u1ec7n cho ph\u00e9p?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t c\u1ea7u dao c\u00f3 th\u1ec3 th\u00e1o r\u1eddi kh\u00f4ng bao gi\u1edd \u0111\u01b0\u1ee3c coi l\u00e0 s\u1ef1 cho ph\u00e9p l\u00e0m vi\u1ec7c tr\u00ean c\u00e1c d\u00e2y d\u1eabn b\u1ecb l\u1ed9. S\u1ef1 c\u00f4 l\u1eadp, x\u00e1c minh v\u00e0 nh\u00e2n vi\u00ean c\u00f3 tr\u00ecnh \u0111\u1ed9 v\u1eabn r\u1ea5t c\u1ea7n thi\u1ebft. M\u1ef9&nbsp;<a href=\"https:\/\/www.osha.gov\/laws-regs\/regulations\/standardnumber\/1910\/1910.333\" target=\"_blank\" rel=\"noopener\">Y\u00eau c\u1ea7u th\u1ef1c h\u00e0nh c\u00f4ng vi\u1ec7c \u0111i\u1ec7n c\u1ee7a OSHA<\/a>&nbsp;minh h\u1ecda t\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c kh\u1eed n\u0103ng l\u01b0\u1ee3ng v\u00e0 c\u00e1c quy tr\u00ecnh l\u00e0m vi\u1ec7c \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t; c\u00e1c y\u00eau c\u1ea7u hi\u1ec7n h\u00e0nh c\u1ee7a \u0111\u1ecba ph\u01b0\u01a1ng ph\u1ea3i chi ph\u1ed1i d\u1ef1 \u00e1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ee5c ti\u00eau mua h\u00e0ng l\u00e0 x\u00e1c \u0111\u1ecbnh ranh gi\u1edbi b\u1ea3o tr\u00ec d\u1ef1 \u0111\u1ecbnh tr\u01b0\u1edbc khi thi\u1ebft b\u1ecb \u0111\u1ebfn ch\u1ee9 kh\u00f4ng ph\u1ea3i \u1ee9ng bi\u1ebfn khi ng\u1eebng ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<h2 id=\"read-service-continuity-and-partition-classes-separately\" class=\"wp-block-heading\">\u0110\u1ecdc Service Continuity v\u00e0 Partition Classes Ri\u00eang bi\u1ec7t<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi m\u1ed9t d\u1ef1 \u00e1n d\u1ef1a tr\u00ean IEC, kh\u00f4ng d\u1ecbch c\u1ee5m t\u1eeb thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i tr\u1ef1c ti\u1ebfp th\u00e0nh m\u1ed9t ph\u00e2n lo\u1ea1i IEC ho\u00e0n ch\u1ec9nh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ea5t lo\u1ea1i li\u00ean t\u1ee5c d\u1ecbch v\u1ee5, ho\u1eb7c LSC, m\u00f4 t\u1ea3 m\u00e0 c\u00e1c ng\u0103n \u0111i\u1ec7n \u00e1p cao kh\u00e1c ho\u1eb7c c\u00e1c \u0111\u01a1n v\u1ecb ch\u1ee9c n\u0103ng c\u00f3 th\u1ec3 v\u1eabn c\u00f2n tr\u00e0n \u0111\u1ea7y n\u0103ng l\u01b0\u1ee3ng khi m\u1ed9t ng\u0103n truy c\u1eadp \u0111\u01b0\u1ee3c m\u1edf trong c\u00e1c \u0111i\u1ec1u ki\u1ec7n x\u00e1c \u0111\u1ecbnh.N\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t \u0111i\u1ec3m s\u1ed1 \u0111\u1ed9 tin c\u1eady ho\u1eb7c m\u1ed9t s\u1ef1 \u0111\u1ea3m b\u1ea3o c\u1ee7a s\u1ea3n xu\u1ea5t kh\u00f4ng b\u1ecb gi\u00e1n \u0111o\u1ea1n.S\u1eeda \u0111\u1ed5i n\u0103m 2024 cho IEC 62271-200 ph\u00e2n bi\u1ec7t r\u00f5 r\u00e0ng LSC t\u1eeb \u0111\u1ed9 tin c\u1eady c\u1ee7a thi\u1ebft b.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Y\u00eau c\u1ea7u danh m\u1ee5c LSC \u0111\u01b0\u1ee3c khai b\u00e1o c\u1ee7a t\u1eebng \u0111\u01a1n v\u1ecb ch\u1ee9c n\u0103ng c\u00f3 li\u00ean quan, \u0111i\u1ec1u ki\u1ec7n truy c\u1eadp ng\u0103n c\u1ee7a n\u00f3 v\u00e0 l\u1edbp ph\u00e2n v\u00f9ng li\u00ean quan. y\u00eau c\u1ea7u nh\u00e0 cung c\u1ea5p gi\u1ea3i th\u00edch k\u00fd hi\u1ec7u ph\u00e2n v\u00f9ng tr\u00ean b\u1ea3n v\u1ebd x\u00e2y d\u1ef1ng, thay v\u00ec coi ch\u1eef vi\u1ebft t\u1eaft l\u00e0 b\u1eb1ng ch\u1ee9ng \u0111\u1ea7y \u0111\u1ee7.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi so s\u00e1nh thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i, \u0111i\u1ec1u n\u00e0y t\u1ea1o ra m\u1ed9t c\u00e2u h\u1ecfi ch\u1ea5p nh\u1eadn h\u1eefu \u00edch: \u201cS\u1ef1 s\u1eafp x\u1ebfp truy c\u1eadp \u0111\u01b0\u1ee3c ghi l\u1ea1i c\u00f3 h\u1ed7 tr\u1ee3 nhi\u1ec7m v\u1ee5 b\u1ea3o tr\u00ec d\u1ef1 \u0111\u1ecbnh c\u1ee7a ch\u00fang t\u00f4i kh\u00f4ng?\u201d<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t \u0111\u1eb7c t\u1ea3 ch\u1ec9 \u0111\u01a1n gi\u1ea3n y\u00eau c\u1ea7u \u201ct\u00ednh li\u00ean t\u1ee5c d\u1ecbch v\u1ee5 t\u1ed1i \u0111a\u201d \u0111\u1ec3 l\u1ea1i qu\u00e1 nhi\u1ec1u m\u1edf \u0111\u1ec3 gi\u1ea3i th\u00edch.N\u00eau r\u00f5 thi\u1ebft b\u1ecb n\u00e0o b\u1ea1n c\u1ea7n truy c\u1eadp v\u00e0 m\u1ea1ch n\u00e0o kh\u00e1c m\u00e0 b\u1ea1n d\u1ef1 \u0111\u1ecbnh gi\u1eef cung c\u1ea5p.Vi\u1ec7c xem x\u00e9t k\u1ef9 thu\u1eadt sau \u0111\u00f3 c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh xem s\u1ef1 s\u1eafp x\u1ebfp \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t c\u00f3 h\u1ed7 tr\u1ee3 m\u1ee5c ti\u00eau \u0111\u00f3 hay kh\u00f4ng.<\/p>\n\n\n\n<h2 id=\"is-metal-clad-switchgear-automatically-arc-resistant\" class=\"wp-block-heading\">L\u00e0 kim lo\u1ea1i Clad Switchgear t\u1ef1 \u0111\u1ed9ng Arc kh\u00e1ng?<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"800\" height=\"535\" src=\"https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/product08.jpg\" alt=\"kim lo\u1ea1i clad switchgear\" class=\"wp-image-891\" srcset=\"https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/product08.jpg 800w, https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/product08-300x201.jpg 300w, https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/product08-768x514.jpg 768w, https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/product08-600x401.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ed1 Thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i m\u00f4 t\u1ea3 k\u1ebft c\u1ea5u; hi\u1ec7u su\u1ea5t h\u1ed3 quang b\u00ean trong \u0111\u00f2i h\u1ecfi ph\u1ea3i c\u00f3 s\u1ef1 \u0111\u00e1nh gi\u00e1 ri\u00eang.&nbsp;<a href=\"https:\/\/standards.ieee.org\/ieee\/C37.20.7\/11176\/\" target=\"_blank\" rel=\"noopener\">IEEE C37.20.7<\/a>&nbsp;gi\u1ea3i quy\u1ebft vi\u1ec7c ki\u1ec3m tra v\u00e0 \u0111\u00e1nh gi\u00e1 c\u00e1c l\u1ed7i h\u1ed3 quang b\u00ean trong, bao g\u1ed3m c\u1ea3 c\u00e1c c\u00e2n nh\u1eafc v\u1ec1 d\u1ecbch v\u1ee5 v\u00e0 l\u1eafp \u0111\u1eb7t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi m\u1ed9t \u0111\u1ec1 xu\u1ea5t IEC, y\u00eau c\u1ea7u ph\u00e2n lo\u1ea1i h\u1ed3 quang n\u1ed9i b\u1ed9 \u0111\u01b0\u1ee3c khai b\u00e1o, n\u1ebfu c\u1ea7n, v\u00e0 b\u1eb1ng ch\u1ee9ng h\u1ed7 tr\u1ee3.\u0110\u1ed1i v\u1edbi m\u1ed9t \u0111\u1ec1 xu\u1ea5t c\u1ee7a IEEE, y\u00eau c\u1ea7u ch\u1ec9 \u0111\u1ecbnh v\u00e0 c\u01a1 s\u1edf th\u1eed nghi\u1ec7m ch\u1ed1ng h\u1ed3 quang t\u01b0\u01a1ng \u1ee9ng. kh\u00f4ng gi\u1ea3 \u0111\u1ecbnh hai h\u1ec7 th\u1ed1ng ch\u1ec9 \u0111\u1ecbnh c\u00f3 th\u1ec3 ho\u00e1n \u0111\u1ed5i cho nhau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi xem x\u00e9t thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i, h\u00e3y y\u00eau c\u1ea7u nh\u00e0 cung c\u1ea5p x\u00e1c \u0111\u1ecbnh d\u00f2ng \u0111i\u1ec7n, th\u1eddi l\u01b0\u1ee3ng, c\u00e1c m\u1eb7t c\u00f3 th\u1ec3 ti\u1ebfp c\u1eadn v\u00e0 \u0111i\u1ec1u ki\u1ec7n bao v\u00e2y \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m tra. Nh\u1eadn h\u01b0\u1edbng d\u1eabn c\u00e0i \u0111\u1eb7t li\u00ean quan \u0111\u1ebfn hi\u1ec7u su\u1ea5t \u0111\u00f3, bao g\u1ed3m m\u1ecdi tuy\u1ebfn \u0111\u01b0\u1eddng gi\u1ea3m \u00e1p, \u1ed1ng d\u1eabn ho\u1eb7c h\u1ea1n ch\u1ebf trong ph\u00f2ng. Nh\u1eefng c\u00e2u h\u1ecfi n\u00e0y xu\u1ea5t ph\u00e1t t\u1eeb nhu c\u1ea7u \u0111\u00e1nh gi\u00e1 vi\u1ec7c l\u1eafp r\u00e1p trong c\u00e0i \u0111\u1eb7t d\u1ef1 \u0111\u1ecbnh c\u1ee7a n\u00f3, kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t t\u1ee7 \u0111\u1ed9c l\u1eadp.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sau \u0111\u00f3 so s\u00e1nh c\u00e0i \u0111\u1eb7t \u0111\u1ec1 xu\u1ea5t v\u1edbi t\u00e0i li\u1ec7u \u0111\u00f3. n\u01a1i s\u1eafp x\u1ebfp ph\u00f2ng kh\u00e1c nhau, y\u00eau c\u1ea7u l\u00e0m r\u00f5 k\u1ef9 thu\u1eadt b\u1eb1ng v\u0103n b\u1ea3n tr\u01b0\u1edbc khi ph\u00ea duy\u1ec7t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u1ea3 ph\u00e2n v\u00f9ng l\u1eabn ph\u00e2n lo\u1ea1i h\u1ed3 quang b\u00ean trong \u0111\u1ec1u kh\u00f4ng lo\u1ea1i b\u1ecf nhu c\u1ea7u \u0111\u00e1nh gi\u00e1 an to\u00e0n \u0111i\u1ec7n.H\u00e3y coi c\u00e1c tuy\u00ean b\u1ed1 nh\u01b0 \u201cb\u1eb1ng ch\u1ee9ng h\u1ed3 quang\u201dl\u00e0 l\u00fd do \u0111\u1ec3 y\u00eau c\u1ea7u c\u00e1c \u0111i\u1ec1u ki\u1ec7n v\u00e0 b\u1eb1ng ch\u1ee9ng ch\u00ednh x\u00e1c, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 s\u1ef1 thay th\u1ebf cho ch\u00fang.<\/p>\n\n\n\n<h2 id=\"compare-electrical-ratings-on-an-equal-basis\" class=\"wp-block-heading\">So s\u00e1nh x\u1ebfp h\u1ea1ng \u0111i\u1ec7n tr\u00ean c\u01a1 s\u1edf b\u00ecnh \u0111\u1eb3ng<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Hai \u0111\u1ec1 xu\u1ea5t thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i kh\u00f4ng t\u01b0\u01a1ng \u0111\u01b0\u01a1ng ch\u1ec9 v\u00ec c\u00e1c m\u1ee5c nh\u1eadp \u0111i\u1ec7n \u00e1p v\u00e0 d\u00f2ng \u0111i\u1ec7n c\u1ee7a ch\u00fang tr\u00f4ng gi\u1ed1ng nhau.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">X\u00e2y d\u1ef1ng m\u1ed9t l\u1ecbch tr\u00ecnh chung bao g\u1ed3m \u0111i\u1ec7n \u00e1p \u0111\u1ecbnh m\u1ee9c, m\u1ee9c \u0111\u1ed9 ch\u1ecbu \u0111\u01b0\u1ee3c c\u00e1ch \u0111i\u1ec7n, d\u00f2ng \u0111i\u1ec7n li\u00ean t\u1ee5c, th\u1eddi gian ng\u1eafn ch\u1ecbu \u0111\u01b0\u1ee3c d\u00f2ng \u0111i\u1ec7n v\u00e0 th\u1eddi l\u01b0\u1ee3ng, v\u00e0 c\u00e1c nhi\u1ec7m v\u1ee5 chuy\u1ec3n \u0111\u1ed5i c\u1ea7n thi\u1ebft.\u0110\u00e2y l\u00e0 nh\u1eefng kh\u00eda c\u1ea1nh ri\u00eang bi\u1ec7t c\u1ee7a m\u1ed9t khung \u0111\u00e1nh gi\u00e1 v\u00e0 x\u00e1c minh c\u1ee7a h\u1ed9i \u0111\u1ed3ng.<\/p>\n\n\n\n<h3 id=\"separate-carrying-current-from-interrupting-current\" class=\"wp-block-heading\">T\u00e1ch d\u00f2ng mang kh\u1ecfi d\u00f2ng \u0111i\u1ec7n gi\u00e1n \u0111o\u1ea1n<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">D\u00f2ng \u0111i\u1ec7n m\u00e0 m\u1ea1ch mang trong ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng kh\u00f4ng ph\u1ea3i l\u00e0 y\u00eau c\u1ea7u t\u01b0\u01a1ng t\u1ef1 nh\u01b0 d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 m\u00e0 thi\u1ebft b\u1ecb ng\u1eaft c\u1ee7a n\u00f3 ph\u1ea3i x\u00f3a. \u0111\u00e1nh gi\u00e1 nhi\u1ec7m v\u1ee5 c\u1ee7a c\u1ea7u dao c\u0169ng nh\u01b0 x\u1ebfp h\u1ea1ng l\u1eafp r\u00e1p;&nbsp;<a href=\"https:\/\/webstore.iec.ch\/en\/publication\/99635\" target=\"_blank\" rel=\"noopener\">IEC 62271-100<\/a>&nbsp;\u0111\u1ecba ch\u1ec9 b\u1ed9 ng\u1eaft m\u1ea1ch AC v\u00e0 c\u00e1c th\u1eed nghi\u1ec7m t\u1ea1o-ph\u00e1 v\u1ee1 c\u1ee7a ch\u00fang. m\u1ed9t m\u00ecnh t\u00e0i li\u1ec7u b\u1ed9 ng\u1eaft kh\u00f4ng thi\u1ebft l\u1eadp hi\u1ec7u su\u1ea5t l\u1eafp r\u00e1p ho\u00e0n ch\u1ec9nh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Xem x\u00e9t m\u1ed9t so s\u00e1nh minh h\u1ecda: m\u1ed9t \u0111\u1ec1 ngh\u1ecb n\u00eau ra m\u1ed9t th\u1eddi gian ng\u1eafn ch\u1ecbu \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 25 kA cho m\u1ed9t gi\u00e2y, trong khi m\u1ed9t nh\u00e0 n\u01b0\u1edbc kh\u00e1c 25 kA cho ba gi\u00e2y. c\u00e1c gi\u00e1 tr\u1ecb hi\u1ec7n t\u1ea1i ph\u00f9 h\u1ee3p, nh\u01b0ng th\u1eddi l\u01b0\u1ee3ng khai b\u00e1o kh\u00f4ng ghi l\u1ea1i c\u1ea3 hai gi\u00e1 tr\u1ecb v\u00e0 c\u00f3 k\u1ef9 s\u01b0 b\u1ea3o v\u1ec7 x\u00e1c minh nhi\u1ec7m v\u1ee5 y\u00eau c\u1ea7u. nh\u1eefng s\u1ed1 li\u1ec7u v\u00ed d\u1ee5 n\u00e0y kh\u00f4ng ph\u1ea3i l\u00e0 x\u1ebfp h\u1ea1ng s\u1ea3n ph\u1ea9m Lanshan, v\u00e0 kh\u00f4ng c\u00f3 con s\u1ed1 n\u00ean nh\u1ea7m l\u1eabn v\u1edbi m\u1ed9t \u0111\u00e1nh gi\u00e1 th\u1eed nghi\u1ec7m h\u1ed3 quang n\u1ed9i b.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi vi\u1ec7c mua s\u1eafm thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i, h\u00e3y cung c\u1ea5p nghi\u00ean c\u1ee9u l\u1ed7i h\u1ec7 th\u1ed1ng ho\u1eb7c d\u1eef li\u1ec7u m\u1ee9c l\u1ed7i \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1ed1ng nh\u1ea5t. Y\u00eau c\u1ea7u k\u1ef9 s\u01b0 d\u1ef1 \u00e1n \u0111i\u1ec1u ch\u1ec9nh c\u00e1c y\u00eau c\u1ea7u \u0111\u00f3 v\u1edbi thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c cung c\u1ea5p thay v\u00ec ch\u1ea5p nh\u1eadn x\u1ebfp h\u1ea1ng \u201cl\u00ean t\u1edbi\u201d kh\u00f4ng gi\u1ea3i th\u00edch \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<h3 id=\"include-the-site-conditions\" class=\"wp-block-heading\">Bao g\u1ed3m c\u00e1c \u0111i\u1ec1u ki\u1ec7n trang web<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ghi l\u1ea1i \u0111i\u1ec1u ki\u1ec7n m\u00f4i tr\u01b0\u1eddng xung quanh, \u0111\u1ed9 cao, \u0111\u1ed9 \u1ea9m v\u00e0 b\u1ea5t k\u1ef3 ti\u1ebfp x\u00fac m\u00f4i tr\u01b0\u1eddng b\u1ea5t th\u01b0\u1eddng. h\u1ecfi xem c\u00e1c x\u1ebfp h\u1ea1ng \u0111\u00e3 n\u00eau \u00e1p d\u1ee5ng t\u1ea1i trang web \u0111\u00f3 ho\u1eb7c y\u00eau c\u1ea7u \u0111i\u1ec1u ch\u1ec9nh. \u0111i\u1ec1u ki\u1ec7n d\u1ecbch v\u1ee5 ph\u1ed5 bi\u1ebfn \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft b\u1edfi&nbsp;<a href=\"https:\/\/webstore.iec.ch\/en\/publication\/71439\" target=\"_blank\" rel=\"noopener\">IEC 62271-1<\/a>, b\u00ean c\u1ea1nh c\u00e1c ti\u00eau chu\u1ea9n thi\u1ebft b\u1ecb li\u00ean quan.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y c\u0169ng l\u00e0 n\u01a1i b\u1ea1n n\u00ean gi\u1ea3i quy\u1ebft xem tham s\u1ed1 \u0111\u01b0\u1ee3c xu\u1ea5t b\u1ea3n thu\u1ed9c v\u1ec1 c\u1ea5u h\u00ecnh \u0111\u01b0\u1ee3c cung c\u1ea5p hay ch\u1ec9 thu\u1ed9c v\u1ec1 d\u00f2ng s\u1ea3n ph\u1ea9m r\u1ed9ng h\u01a1n.<\/p>\n\n\n\n<h2 id=\"check-the-complete-room-layout\" class=\"wp-block-heading\">Ki\u1ec3m tra B\u1ed1 c\u1ee5c ph\u00f2ng ho\u00e0n ch\u1ec9nh<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e1nh gi\u00e1 thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i trong ph\u00f2ng m\u00e0 n\u00f3 s\u1ebd chi\u1ebfm.Y\u00eau c\u1ea7u b\u1ea3n v\u1ebd c\u00e0i \u0111\u1eb7t bao g\u1ed3m l\u1ed1i \u0111i v\u1eadn h\u00e0nh, tuy\u1ebfn \u0111\u01b0\u1eddng x\u1eed l\u00fd c\u1ea7u dao, r\u00e3nh c\u00e1p, c\u1eeda m\u1edf v\u00e0 b\u1ea5t k\u1ef3 l\u1ed1i v\u00e0o ph\u00eda sau n\u00e0o.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Y\u00eau c\u1ea7u nh\u00e0 cung c\u1ea5p cho th\u1ea5y n\u01a1i m\u00e0 m\u1ed9t b\u1ed9 ng\u1eaft r\u00fat ra s\u1ebd \u0111\u1ee9ng v\u00e0 l\u00e0m th\u1ebf n\u00e0o n\u00f3 s\u1ebd \u0111\u1ea1t \u0111\u1ebfn khu v\u1ef1c d\u1ecbch v\u1ee5. m\u1ed9t ph\u00e1c th\u1ea3o n\u1ed9i c\u00e1c k\u00edch th\u01b0\u1edbc kh\u00f4ng tr\u1ea3 l\u1eddi nh\u1eefng c\u00e2u h\u1ecfi \u0111\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i v\u1edbi y\u00eau c\u1ea7u hi\u1ec7u su\u1ea5t h\u1ed3 quang b\u00ean trong, h\u00e3y ph\u1ed1i h\u1ee3p b\u1ed1 c\u1ee5c v\u1edbi c\u00e1c \u0111i\u1ec1u ki\u1ec7n l\u1eafp \u0111\u1eb7t v\u00e0 x\u1ea3 \u0111\u01b0\u1ee3c ghi l\u1ea1i. Khung ki\u1ec3m tra h\u1ed3 quang c\u00f3 li\u00ean quan bao g\u1ed3m c\u00e1c c\u00e2n nh\u1eafc l\u1eafp \u0111\u1eb7t, v\u00ec v\u1eady thi\u1ebft k\u1ebf ph\u00f2ng kh\u00f4ng n\u00ean \u0111\u01b0\u1ee3c coi l\u00e0 m\u1ed9t quy\u1ebft \u0111\u1ecbnh ki\u1ebfn tr\u00fac kh\u00f4ng li\u00ean quan.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u0169ng y\u00eau c\u1ea7u m\u1ed9t s\u1ef1 s\u1eafp x\u1ebfp m\u1edf r\u1ed9ng \u0111\u1ec1 xu\u1ea5t. k\u1ebft th\u00fac n\u00e0o c\u00f3 s\u1eb5n cho c\u00e1c b\u1ea3ng b\u1ed5 sung? c\u00f4ng vi\u1ec7c trong t\u01b0\u01a1ng lai s\u1ebd y\u00eau c\u1ea7u quy\u1ec1n truy c\u1eadp m\u00e0 c\u00e1c kh\u1ed1i b\u1ed1 tr\u00ed ban \u0111\u1ea7u?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1ea1i xem x\u00e9t thi\u1ebft k\u1ebf, \u0111i b\u1ed9 qua c\u00e0i \u0111\u1eb7t, v\u1eadn h\u00e0nh, lo\u1ea1i b\u1ecf v\u00e0 m\u1edf r\u1ed9ng nh\u01b0 b\u1ed1n ho\u1ea1t \u0111\u1ed9ng ri\u00eang bi\u1ec7t. \u0111\u00e1nh d\u1ea5u m\u1ecdi giao di\u1ec7n ch\u01b0a \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft tr\u00ean b\u1ea3n v\u1ebd v\u00e0 ph\u00e2n c\u00f4ng tr\u00e1ch nhi\u1ec7m tr\u01b0\u1edbc khi c\u00f4ng vi\u1ec7c d\u00e2n s\u1ef1 \u0111\u01b0\u1ee3c ho\u00e0n th\u00e0nh.<\/p>\n\n\n\n<h2 id=\"match-the-design-to-the-operating-scenario\" class=\"wp-block-heading\">Ph\u00f9 h\u1ee3p v\u1edbi thi\u1ebft k\u1ebf v\u1edbi k\u1ecbch b\u1ea3n v\u1eadn h\u00e0nh<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c v\u00ed d\u1ee5 sau \u0111\u00e2y l\u00e0 c\u00e1c khung quy\u1ebft \u0111\u1ecbnh, kh\u00f4ng tuy\u00ean b\u1ed1 r\u1eb1ng m\u1ed9t n\u1ed9i c\u00e1c c\u1ee5 th\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ed9t k\u1ebft qu\u1ea3 c\u1ee5 th.<\/p>\n\n\n\n<h3 id=\"a-process-plant-with-several-important-feeders\" class=\"wp-block-heading\">M\u1ed9t nh\u00e0 m\u00e1y x\u1eed l\u00fd v\u1edbi m\u1ed9t s\u1ed1 b\u1ed9 c\u1ea5p li\u1ec7u quan tr\u1ecdng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u1ea3 s\u1eed m\u1ed9t l\u1eafp r\u00e1p \u0111\u1ebfn cung c\u1ea5p nhi\u1ec1u khu v\u1ef1c s\u1ea3n xu\u1ea5t. ch\u1ee7 s\u1edf h\u1eefu mu\u1ed1n ki\u1ec3m tra m\u1ed9t b\u1ed9 ph\u1eadn ng\u1eaft trung chuy\u1ec3n trong khi duy tr\u00ec c\u00e1c ngu\u1ed3n cung c\u1ea5p kh\u00e1c m\u00e0 thi\u1ebft k\u1ebf \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t cho ph\u00e9p.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y, thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i \u0111\u00e1ng \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 so v\u1edbi y\u00eau c\u1ea7u truy c\u1eadp b\u1ea3o tr\u00ec \u0111\u01b0\u1ee3c ghi ch\u00e9p r\u00f5 r\u00e0ng. tuy nhi\u00ean, y\u00eau c\u1ea7u k\u1ef9 s\u01b0 ki\u1ec3m tra quy tr\u00ecnh s\u1eafp x\u1ebfp cung c\u1ea5p, b\u1ea3o v\u1ec7 v\u00e0 t\u1eaft m\u00e1y ho\u00e0n ch\u1ec9nh. ch\u1ec9 ri\u00eang danh m\u1ee5c bao v\u00e2y kh\u00f4ng th\u1ec3 tr\u1ea3 l\u1eddi li\u1ec7u m\u1ed9t khu v\u1ef1c s\u1ea3n xu\u1ea5t s\u1ebd v\u1eabn ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<h3 id=\"a-dedicated-transformer-supply\" class=\"wp-block-heading\">M\u1ed9t ngu\u1ed3n cung c\u1ea5p m\u00e1y bi\u1ebfn \u00e1p chuy\u00ean d\u1ee5ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u1ea3 s\u1eed m\u1ed9t d\u1ef1 \u00e1n kh\u00e1c c\u00f3 m\u1ed9t b\u1ed9 c\u1ea5p li\u1ec7u bi\u1ebfn \u00e1p duy nh\u1ea5t v\u00e0 m\u1ed9t c\u1eeda s\u1ed5 t\u1eaft m\u00e1y \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1ecfa thu\u1eadn. so s\u00e1nh s\u1ef1 s\u1eafp x\u1ebfp c\u1ea7u ch\u00ec chuy\u1ec3n \u0111\u1ed5i ho\u1eb7c ng\u1eaft m\u1ea1ch \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t v\u1edbi c\u00e1c y\u00eau c\u1ea7u b\u1ea3o v\u1ec7 v\u00e0 v\u1eadn h\u00e0nh th\u1ef1c t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng lo\u1ea1i tr\u1eeb m\u1ed9t thi\u1ebft k\u1ebf kim lo\u1ea1i k\u00e8m theo ph\u00f9 h\u1ee3p v\u00ec n\u00f3 thi\u1ebfu m\u1ed9t nh\u00e3n ti\u1ebfp th\u1ecb \u01b0a th\u00edch. b\u1eb1ng nhau, kh\u00f4ng thay th\u1ebf m\u1ed9t s\u1ef1 s\u1eafp x\u1ebfp b\u1ed9 ng\u1eaft \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh v\u1edbi m\u1ed9t t\u00f9y ch\u1ecdn \u0111\u01a1n gi\u1ea3n h\u01a1n m\u00e0 kh\u00f4ng c\u00f3 s\u1ef1 ch\u1ea5p thu\u1eadn k\u1ef9 thu\u1eadt.<\/p>\n\n\n\n<h3 id=\"an-existing-installation-needing-expansion\" class=\"wp-block-heading\">M\u1ed9t c\u00e0i \u0111\u1eb7t hi\u1ec7n c\u00f3 c\u1ea7n m\u1edf r\u1ed9ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi m\u1ed9t d\u1ef1 \u00e1n m\u1edf r\u1ed9ng, h\u00e3y \u0111\u00e1nh gi\u00e1 thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i d\u1ef1a tr\u00ean giao di\u1ec7n bus hi\u1ec7n c\u00f3, s\u01a1 \u0111\u1ed3 \u0111i\u1ec1u khi\u1ec3n, k\u00edch th\u01b0\u1edbc l\u1eafp \u0111\u1eb7t v\u00e0 d\u1eef li\u1ec7u l\u1ed7i c\u00f3 s\u1eb5n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Y\u00eau c\u1ea7u nh\u00e0 cung c\u1ea5p x\u00e1c \u0111\u1ecbnh m\u1ecdi giao di\u1ec7n c\u1ea7n x\u00e1c minh.M\u1ed9t t\u00ean gia \u0111\u00ecnh thi\u1ebft b\u1ecb kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t tuy\u00ean b\u1ed1 t\u01b0\u01a1ng th\u00edch. c\u00f3 th\u1ec3 ph\u00e2n ph\u1ed1i h\u1eefu \u00edch l\u00e0 m\u1ed9t b\u1ea3n v\u1ebd giao di\u1ec7n \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u v\u00e0 m\u1ed9t danh s\u00e1ch c\u00e1c tr\u00e1ch nhi\u1ec7m \u0111\u00e3 th\u1ecfa thu\u1eadn.<\/p>\n\n\n\n<h2 id=\"request-evidence-before-approving-the-proposal\" class=\"wp-block-heading\">Y\u00eau c\u1ea7u b\u1eb1ng ch\u1ee9ng tr\u01b0\u1edbc khi ph\u00ea duy\u1ec7t \u0111\u1ec1 xu\u1ea5t<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c g\u1eedi thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i ph\u1ea3i cho ph\u00e9p ng\u01b0\u1eddi \u0111\u00e1nh gi\u00e1 k\u1ebft n\u1ed1i t\u1eebng y\u00eau c\u1ea7u b\u1ed3i th\u01b0\u1eddng quan tr\u1ecdng v\u1edbi m\u1ed9t t\u00e0i li\u1ec7u c\u00f3 th\u1ec3 nh\u1eadn d\u1ea1ng \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Y\u00eau c\u1ea7u c\u1ea5u h\u00ecnh \u0111\u1ec1 xu\u1ea5t, x\u1ebfp h\u1ea1ng \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t, s\u1eafp x\u1ebfp chung, b\u1ea3n v\u1ebd ng\u0103n v\u00e0 b\u1eb1ng ch\u1ee9ng ki\u1ec3m tra lo\u1ea1i c\u00f3 li\u00ean quan. \u0111\u1ed3ng \u00fd c\u00e1c h\u1ed3 s\u01a1 ki\u1ec3m tra th\u01b0\u1eddng xuy\u00ean b\u1eaft bu\u1ed9c v\u00e0 ph\u1ea1m vi ch\u1ea5p nh\u1eadn c\u1ee7a nh\u00e0 m\u00e1y ri\u00eang bi\u1ec7t, do \u0111\u00f3, ki\u1ec3m tra s\u1ea3n xu\u1ea5t kh\u00f4ng b\u1ecb nh\u1ea7m l\u1eabn v\u1edbi b\u1eb1ng ch\u1ee9ng c\u1ee7a m\u1ecdi y\u00eau c\u1ea7u thi\u1ebft k.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Trong tr\u01b0\u1eddng h\u1ee3p c\u00e1ch l\u1eafp r\u00e1p \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t kh\u00e1c v\u1edbi c\u00e1ch s\u1eafp x\u1ebfp \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m, h\u00e3y h\u1ecfi xem b\u1eb1ng ch\u1ee9ng v\u1eabn c\u00f3 th\u1ec3 \u00e1p d\u1ee5ng \u0111\u01b0\u1ee3c nh\u01b0 th\u1ebf n\u00e0o.&nbsp;<a href=\"https:\/\/webstore.iec.ch\/en\/publication\/69468\" target=\"_blank\" rel=\"noopener\">IEC TR 62271-307<\/a>&nbsp;cung c\u1ea5p h\u01b0\u1edbng d\u1eabn v\u1ec1 vi\u1ec7c m\u1edf r\u1ed9ng hi\u1ec7u l\u1ef1c c\u1ee7a type-test trong c\u00e1c h\u1ecd thi\u1ebft b\u1ecb.M\u1ed9t s\u1ef1 kh\u00e1c bi\u1ec7t kh\u00f4ng t\u1ef1 \u0111\u1ed9ng l\u00e0m m\u1ea5t hi\u1ec7u l\u1ef1c m\u1ed9t \u0111\u1ec1 xu\u1ea5t, nh\u01b0ng n\u00f3 k\u00eau g\u1ecdi m\u1ed9t s\u1ef1 bi\u1ec7n minh k\u1ef9 thu\u1eadt h\u01a1n l\u00e0 m\u1ed9t gi\u1ea3 \u0111\u1ecbnh.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i, ghi l\u1ea1i c\u00e1c \u0111i\u1ec3m ch\u01b0a \u0111\u01b0\u1ee3c gi\u1ea3i quy\u1ebft trong l\u1ecbch tr\u00ecnh sai l\u1ec7ch k\u1ef9 thu\u1eadt. cung c\u1ea5p cho m\u1ed7i m\u1ee5c m\u1ed9t ch\u1ee7 s\u1edf h\u1eefu, m\u1ed9t t\u00e0i li\u1ec7u d\u1ef1 ki\u1ebfn v\u00e0 m\u1ed9t tr\u1ea1ng th\u00e1i ph\u00ea duy\u1ec7t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi s\u01a1 \u0111\u1ed3 \u0111i\u1ec1u khi\u1ec3n, y\u00eau c\u1ea7u m\u00f4 t\u1ea3 ch\u1ee9c n\u0103ng cho bi\u1ebft t\u00edn hi\u1ec7u n\u00e0o b\u1eaft \u0111\u1ea7u chuy\u1ebfn \u0111i, s\u1ef1 ki\u1ec7n n\u00e0o t\u1ea1o ra c\u1ea3nh b\u00e1o v\u00e0 c\u00e1ch x\u1eed l\u00fd m\u1ea5t ngu\u1ed3n \u0111i\u1ec7n ph\u1ee5. X\u00e1c \u0111\u1ecbnh ai cung c\u1ea5p v\u00e0 ph\u00ea duy\u1ec7t c\u00e0i \u0111\u1eb7t b\u1ea3o v\u1ec7. \u0110i\u1ec1u n\u00e0y ng\u0103n kh\u00f4ng cho l\u1ecbch tr\u00ecnh thi\u1ebft b\u1ecb ho\u00e0n ch\u1ec9nh r\u00f5 r\u00e0ng kh\u00f4ng \u0111\u01b0\u1ee3c giao tr\u00e1ch nhi\u1ec7m ki\u1ec3m so\u00e1t quan tr\u1ecdng.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Cu\u1ed1i c\u00f9ng, l\u00e0m cho c\u00e1c ti\u00eau ch\u00ed ch\u1ea5p nh\u1eadn c\u1ee5 th\u1ec3: b\u1ea3n v\u1ebd n\u00e0o ph\u1ea3i \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t, ch\u1ee9c n\u0103ng n\u00e0o s\u1ebd \u0111\u01b0\u1ee3c ch\u1ee9ng minh v\u00e0 h\u1ed3 s\u01a1 n\u00e0o ph\u1ea3i \u0111i k\u00e8m v\u1edbi vi\u1ec7c giao h\u00e0ng?\u0110i\u1ec1u n\u00e0y bi\u1ebfn nh\u1eefng l\u1eddi h\u1ee9a r\u1ed9ng r\u00e3i th\u00e0nh nh\u1eefng cam k\u1ebft c\u00f3 th\u1ec3 xem x\u00e9t l\u1ea1i m\u00e0 kh\u00f4ng gi\u1ea3 v\u1edd r\u1eb1ng m\u1ed9t danh s\u00e1ch ki\u1ec3m tra chung c\u00f3 th\u1ec3 thay th\u1ebf k\u1ef9 thu\u1eadt d\u1ef1 \u00e1n.<\/p>\n\n\n\n<h2 id=\"evaluating-a-kyn-28-a-12-configuration\" class=\"wp-block-heading\">\u0110\u00e1nh gi\u00e1 m\u1ed9t KYN28A-12 C\u1ea5u h\u00ecnh<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/Company-Products09.jpg\" alt=\"S\u1ea3n ph\u1ea9m c\u1ee7a C\u00f4ng ty\" class=\"wp-image-944\" srcset=\"https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/Company-Products09.jpg 800w, https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/Company-Products09-300x225.jpg 300w, https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/Company-Products09-768x576.jpg 768w, https:\/\/lanshanelectric.com\/wp-content\/uploads\/2026\/08\/Company-Products09-600x450.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">c\u1ee7a Lanshan&nbsp;<a href=\"https:\/\/lanshanelectric.com\/vi\/san-pham\/kyn28a-12-boc-thep-co-the-thao-roi-ac-kim-loai-kem-theo-switchgear\/\">KYN28A-12 trung th\u1ebf switchgear<\/a>&nbsp;\u0111\u01b0\u1ee3c tr\u00ecnh b\u00e0y v\u1edbi m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch ch\u00e2n kh\u00f4ng c\u00f3 th\u1ec3 thu h\u1ed3i v\u00e0 b\u1ed9 ng\u1eaft ri\u00eang bi\u1ec7t, thanh c\u00e1i, c\u00e1p v\u00e0 c\u00e1c ng\u0103n \u0111i\u1ec1u khi\u1ec3n \u0111i\u1ec7n \u00e1p th\u1ea5p. nh\u1eefng t\u00ednh n\u0103ng \u0111\u00f3 l\u00e0m cho n\u00f3 c\u00f3 li\u00ean quan \u0111\u1ebfn m\u1ed9t \u0111\u00e1nh gi\u00e1 thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft c\u00f3 th\u1ec3 thu h\u1ed3i, ng\u0103n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi xem x\u00e9t c\u1ea5u h\u00ecnh thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i n\u00e0y, h\u00e3y y\u00eau c\u1ea7u b\u1ea3ng d\u1eef li\u1ec7u v\u00e0 b\u1ed9 b\u1ea3n v\u1ebd d\u00e0nh ri\u00eang cho d\u1ef1 \u00e1n. x\u00e1c nh\u1eadn x\u1ebfp h\u1ea1ng \u0111\u01b0\u1ee3c cung c\u1ea5p, c\u00e1c th\u00e0nh ph\u1ea7n \u0111\u01b0\u1ee3c ch\u1ecdn, phi\u00ean b\u1ea3n ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng, \u0111i\u1ec1u ki\u1ec7n truy c\u1eadp v\u00e0 t\u00e0i li\u1ec7u ki\u1ec3m tra h\u1ed7 tr.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng x\u1eed l\u00fd m\u1ed9t ph\u1ea1m vi tham s\u1ed1 lo\u1ea1t r\u1ed9ng nh\u01b0 \u0111\u00e1nh gi\u00e1 \u0111\u1ea3m b\u1ea3o c\u1ee7a m\u1ed9t l\u1eafp r\u00e1p KYN28A-12 c\u1ee5 th\u1ec3. t\u01b0\u01a1ng t\u1ef1 nh\u01b0 v\u1eady, kh\u00f4ng suy ra s\u1ef1 ph\u00f9 h\u1ee3p c\u1ee7a IEEE, m\u1ed9t lo\u1ea1i LSC ho\u1eb7c hi\u1ec7u su\u1ea5t h\u1ed3 quang b\u00ean trong ch\u1ec9 t\u1eeb t\u00ean s\u1ea3n ph\u1ea9m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">G\u1eedi s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1eddng \u0111\u01a1n, \u0111i\u1ec7n \u00e1p h\u1ec7 th\u1ed1ng, d\u1eef li\u1ec7u m\u1ee9c l\u1ed7i, l\u1ecbch tr\u00ecnh trung chuy\u1ec3n v\u00e0 b\u1ed1 tr\u00ed c\u00e0i \u0111\u1eb7t v\u1edbi y\u00eau c\u1ea7u c\u1ee7a b\u1ea1n. nh\u1eefng \u0111\u1ea7u v\u00e0o n\u00e0y cung c\u1ea5p cho cu\u1ed9c th\u1ea3o lu\u1eadn k\u1ef9 thu\u1eadt m\u1ed9t \u0111i\u1ec3m kh\u1edfi \u0111\u1ea7u c\u1ee5 th.<\/p>\n\n\n\n<h2 id=\"conclusion\" class=\"wp-block-heading\">K\u1ebft lu\u1eadn<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ef1a ch\u1ecdn thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i kh\u00f4ng ph\u1ea3i l\u00e0 ch\u1ecdn v\u1ecf b\u1ecdc \u00e2m thanh \u0111\u00e1ng k\u1ec3 h\u01a1n. \u0110\u00f3 l\u00e0 v\u1ec1 vi\u1ec7c k\u1ebft h\u1ee3p x\u00e2y d\u1ef1ng, truy c\u1eadp b\u1ea3o tr\u00ec, nhi\u1ec7m v\u1ee5 \u0111i\u1ec7n v\u00e0 hi\u1ec7u su\u1ea5t \u0111\u01b0\u1ee3c x\u00e1c minh v\u1edbi c\u00e0i \u0111\u1eb7t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">X\u00e1c \u0111\u1ecbnh nhi\u1ec7m v\u1ee5 b\u1ea3o tr\u00ec tr\u01b0\u1edbc ti\u00ean. so s\u00e1nh c\u00e1c \u0111\u1ec1 xu\u1ea5t tr\u00ean c\u00f9ng m\u1ed9t c\u01a1 s\u1edf \u0111\u00e1nh gi\u00e1, t\u00e1ch bi\u1ec7t c\u00e1c y\u00eau c\u1ea7u b\u1ea3o hi\u1ec3m d\u1ecbch v\u1ee5-li\u00ean t\u1ee5c t\u1eeb b\u1eb1ng ch\u1ee9ng h\u1ed3 quang n\u1ed9i b\u1ed9 v\u00e0 gi\u1ea3i quy\u1ebft c\u00e1c giao di\u1ec7n ph\u00f2ng tr\u01b0\u1edbc khi ph\u00ea duy\u1ec7t.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi m\u1ed9t cu\u1ed9c th\u1ea3o lu\u1eadn c\u1ee5 th\u1ec3 v\u1ec1 d\u1ef1 \u00e1n,&nbsp;<a href=\"https:\/\/lanshanelectric.com\/vi\/lien-he-voi-chung-toi\/\">li\u00ean h\u1ec7 Lanshan Electric<\/a>&nbsp;v\u1edbi s\u01a1 \u0111\u1ed3 \u0111\u01a1n d\u00f2ng c\u1ee7a b\u1ea1n, y\u00eau c\u1ea7u v\u1eadn h\u00e0nh v\u00e0 d\u1eef li\u1ec7u m\u1ee9c l\u1ed7i. y\u00eau c\u1ea7u xem x\u00e9t c\u1ea5u h\u00ecnh x\u00e1c \u0111\u1ecbnh thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t, t\u00e0i li\u1ec7u h\u1ed7 tr\u1ee3 v\u00e0 m\u1ecdi \u0111i\u1ec1u ki\u1ec7n k\u1ef9 thu\u1eadt c\u00f2n l\u1ea1i.<\/p>\n\n\n\n<h2 id=\"faq\" class=\"wp-block-heading\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\n<h3 id=\"what-is-the-main-difference-between-metal-clad-and-metal-enclosed-switchgear\" class=\"wp-block-heading\">S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa kim lo\u1ea1i b\u1ecdc v\u00e0 kim lo\u1ea1i k\u00e8m theo switchgear l\u00e0 g\u00ec?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Kim lo\u1ea1i k\u00e8m theo l\u00e0 m\u00f4 t\u1ea3 r\u1ed9ng h\u01a1n. thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i theo IEEE C37.20.2 \u0111\u00e3 x\u00e1c \u0111\u1ecbnh ng\u0103n c\u00e1ch, r\u00e0o c\u1ea3n kim lo\u1ea1i n\u1ed1i \u0111\u1ea5t v\u00e0 b\u1ed9 ng\u1eaft m\u1ea1ch r\u00fat ra. so s\u00e1nh ch\u00ednh x\u00e1c ph\u1ee5 thu\u1ed9c v\u00e0o ti\u00eau chu\u1ea9n v\u00e0 x\u00e2y d\u1ef1ng c\u1ee7a l\u1eafp r\u00e1p thay th.<\/p>\n\n\n\n<h3 id=\"is-metal-enclosed-switchgear-only-used-at-low-voltage\" class=\"wp-block-heading\">Thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft k\u00e8m theo kim lo\u1ea1i ch\u1ec9 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u1edf \u0111i\u1ec7n \u00e1p th\u1ea5p?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ed1 IEC 62271-200 bao g\u1ed3m c\u00e1c c\u1ee5m kim lo\u1ea1i AC c\u00f3 v\u1ecf b\u1ecdc t\u1eeb 1 kV \u0111\u1ebfn 52 kV. B\u1ea3n th\u00e2n thu\u1eadt ng\u1eef n\u00e0y kh\u00f4ng x\u00e1c \u0111\u1ecbnh lo\u1ea1i \u0111i\u1ec7n \u00e1p ho\u1eb7c c\u00e1ch b\u1ed1 tr\u00ed b\u00ean trong.<\/p>\n\n\n\n<h3 id=\"does-metal-clad-switchgear-provide-automatic-arc-flash-protection\" class=\"wp-block-heading\">Thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i c\u00f3 b\u1ea3o v\u1ec7 \u0111\u00e8n flash h\u1ed3 quang t\u1ef1 \u0111\u1ed9ng kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">S\u1ed1 Thu\u1eadt ng\u1eef x\u00e2y d\u1ef1ng kh\u00f4ng thi\u1ebft l\u1eadp hi\u1ec7u su\u1ea5t h\u1ed3 quang b\u00ean trong. y\u00eau c\u1ea7u ph\u00e2n lo\u1ea1i ho\u1eb7c ch\u1ec9 \u0111\u1ecbnh \u00e1p d\u1ee5ng, h\u1ed7 tr\u1ee3 c\u00e1c th\u1eed nghi\u1ec7m v\u00e0 \u0111i\u1ec1u ki\u1ec7n l\u1eafp \u0111\u1eb7t, v\u00e0 gi\u1eef l\u1ea1i \u0111\u00e1nh gi\u00e1 an to\u00e0n \u0111i\u1ec7n c\u1ee7a d\u1ef1 \u00e1n.<\/p>\n\n\n\n<h3 id=\"can-a-breaker-be-serviced-while-other-circuits-remain-energized\" class=\"wp-block-heading\">B\u1ed9 ng\u1eaft c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c b\u1ea3o d\u01b0\u1ee1ng trong khi c\u00e1c m\u1ea1ch kh\u00e1c v\u1eabn \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n kh\u00f4ng?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec1u \u0111\u00f3 ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ef1 s\u1eafp x\u1ebfp ng\u0103n t\u00e0i li\u1ec7u, \u0111i\u1ec1u ki\u1ec7n truy c\u1eadp cho ph\u00e9p v\u00e0 th\u1ee7 t\u1ee5c trang web.M\u1ed9t b\u1ed9 ng\u1eaft c\u00f3 th\u1ec3 r\u00fat ra m\u1ed9t m\u00ecnh kh\u00f4ng thi\u1ebft l\u1eadp ranh gi\u1edbi t\u1eaft m\u00e1y \u0111\u01b0\u1ee3c ph\u00e9p ho\u1eb7c cho ph\u00e9p l\u00e0m vi\u1ec7c tr\u00ean c\u00e1c b\u1ed9 ph\u1eadn ti\u1ebfp x\u00fac v\u1edbi n\u0103ng l\u01b0\u1ee3ng.<\/p>\n\n\n\n<h3 id=\"what-should-i-submit-for-a-metal-clad-switchgear-enquiry\" class=\"wp-block-heading\">T\u00f4i n\u00ean g\u1eedi g\u00ec cho y\u00eau c\u1ea7u v\u1ec1 thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Cung c\u1ea5p s\u01a1 \u0111\u1ed3 \u0111\u01b0\u1eddng \u0111\u01a1n, \u0111i\u1ec7n \u00e1p h\u1ec7 th\u1ed1ng, th\u00f4ng tin m\u1ee9c l\u1ed7i, t\u1ea3i trung chuy\u1ec3n, y\u00eau c\u1ea7u b\u1ea3o v\u1ec7 v\u00e0 b\u1ed1 tr\u00ed l\u1eafp \u0111\u1eb7t. bao g\u1ed3m ti\u00eau chu\u1ea9n y\u00eau c\u1ea7u, k\u1ef3 v\u1ecdng b\u1ea3o tr\u00ec v\u00e0 b\u1ea5t k\u1ef3 hi\u1ec7u su\u1ea5t h\u1ed3 quang b\u00ean trong \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh n\u00e0o \u0111\u1ec3 c\u1ea5u h\u00ecnh \u0111\u1ec1 xu\u1ea5t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c xem x\u00e9t ch\u1ed1ng l\u1ea1i ch\u00fang.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>So s\u00e1nh thi\u1ebft b\u1ecb \u0111\u00f3ng c\u1eaft b\u1ecdc kim lo\u1ea1i v\u00e0 thi\u1ebft k\u1ebf k\u00e8m theo kim lo\u1ea1i \u0111\u1ec3 b\u1ea3o tr\u00ec, x\u1ebfp h\u1ea1ng l\u1ed7i v\u00e0 b\u1ea3o v\u1ec7 h\u1ed3 quang. g\u1eedi cho Lanshan th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n.<\/p>","protected":false},"author":1,"featured_media":805,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[38,36,40,39,41,37],"class_list":["post-1409","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-iec-62271-200","tag-medium-voltage-switchgear","tag-metal-clad-switchgear","tag-metal-enclosed-switchgear","tag-switchgear-maintenance","tag-switchgear-selection"],"_links":{"self":[{"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/posts\/1409","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/comments?post=1409"}],"version-history":[{"count":1,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/posts\/1409\/revisions"}],"predecessor-version":[{"id":1410,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/posts\/1409\/revisions\/1410"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/media\/805"}],"wp:attachment":[{"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/media?parent=1409"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/categories?post=1409"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lanshanelectric.com\/vi\/wp-json\/wp\/v2\/tags?post=1409"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}