{"id":3178,"date":"2026-07-23T15:15:46","date_gmt":"2026-07-23T15:15:46","guid":{"rendered":"https:\/\/huyuglobal.com\/?p=3178"},"modified":"2026-07-23T15:15:48","modified_gmt":"2026-07-23T15:15:48","slug":"what-is-a-shunt-trip","status":"publish","type":"post","link":"https:\/\/huyuglobal.com\/vi\/blog\/what-is-a-shunt-trip\/","title":{"rendered":"Shunt Trip l\u00e0 g\u00ec?"},"content":{"rendered":"<p>Khi b\u00e1o ch\u00e1y vang l\u00ean trong b\u1ebfp kh\u00e1ch s\u1ea1n, nhi\u1ec1u quy tr\u00ecnh c\u1ea7n di\u1ec5n ra \u0111\u1ed3ng th\u1eddi. B\u00e1o \u0111\u1ed9ng vang l\u00ean, \u0111\u00e8n nh\u1ea5p nh\u00e1y, h\u1ec7 th\u1ed1ng d\u1eadp l\u1eeda phun h\u00f3a ch\u1ea5t d\u1eadp l\u1eeda l\u00ean thi\u1ebft b\u1ecb n\u1ea5u \u0103n, v\u00e0, quan tr\u1ecdng nh\u1ea5t, to\u00e0n b\u1ed9 ngu\u1ed3n \u0111i\u1ec7n \u0111\u1ebfn thi\u1ebft b\u1ecb n\u1ea5u \u0103n b\u1ecb c\u1eaft ngay l\u1eadp t\u1ee9c, t\u1ef1 \u0111\u1ed9ng, m\u00e0 kh\u00f4ng c\u1ea7n can thi\u1ec7p th\u1ee7 c\u00f4ng. L\u00e0m th\u1ebf n\u00e0o \u0111i\u1ec1u \u0111\u00f3 x\u1ea3y ra? V\u1edbi s\u1ef1 tr\u1ee3 gi\u00fap c\u1ee7a m\u1ed9t shunt trip. M\u1ed9t shunt trip l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a c\u1ea7u dao, v\u00e0 \u0111\u1ea1i di\u1ec7n cho m\u1ed9t cu\u1ed9n \u0111i\u1ec7n t\u1eeb nh\u1ecf k\u00edch ho\u1ea1t c\u1ea7u dao nh\u01b0 m\u1ed9t ph\u1ea3n \u1ee9ng v\u1edbi t\u00edn hi\u1ec7u t\u1eeb xa. Nhi\u1ec1u ng\u01b0\u1eddi, bao g\u1ed3m c\u1ea3 th\u1ee3 \u0111i\u1ec7n, qu\u1ea3n l\u00fd c\u01a1 s\u1edf v\u00e0 thanh tra c\u00e1c t\u00f2a nh\u00e0, t\u1ef1 h\u1ecfi shunt trip l\u00e0 g\u00ec.<\/p>\n<h2>Shunt Trip l\u00e0 g\u00ec v\u00e0 n\u00f3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o<\/h2>\n<p>M\u1ed9t shunt trip \u0111\u1ec1 c\u1eadp \u0111\u1ebfn m\u1ed9t ph\u1ee5 ki\u1ec7n \u0111i\u1ec7n t\u1eeb \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi c\u1ea7u dao cho ph\u00e9p m\u1ed9t l\u1ea7n k\u00edch ho\u1ea1t t\u1eeb xa x\u1ea3y ra th\u00f4ng qua m\u1ed9t t\u00edn hi\u1ec7u b\u00ean ngo\u00e0i. \u00dd ngh\u0129a c\u1ee7a thu\u1eadt ng\u1eef \u201cshunt\u201d li\u00ean quan \u0111\u1ebfn k\u1ebft n\u1ed1i \u0111i\u1ec7n. Cu\u1ed9n k\u00edch ho\u1ea1t \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i theo c\u00e1ch song song, v\u00e0 khi c\u00f3 \u0111i\u1ec7n \u00e1p \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng, cu\u1ed9n \u0111i\u1ec7n t\u1eeb s\u1ebd b\u1eadt l\u00ean v\u00e0 ho\u1ea1t \u0111\u1ed9ng tr\u00ean thi\u1ebft b\u1ecb k\u00edch ho\u1ea1t b\u00ean trong. N\u00f3 t\u01b0\u01a1ng t\u1ef1 nh\u01b0 tr\u01b0\u1eddng h\u1ee3p khi c\u00f3 qu\u00e1 t\u1ea3i ho\u1eb7c ng\u1eafn m\u1ea1ch trong c\u1ea7u dao. \u0110\u00e2y l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb t\u00edch h\u1ee3p an to\u00e0n: n\u00f3 k\u1ebft n\u1ed1i th\u1ebf gi\u1edbi b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng c\u1ee7a b\u1ea3ng \u0111i\u1ec7n v\u1edbi th\u1ebf gi\u1edbi an to\u00e0n sinh m\u1ea1ng c\u1ee7a h\u1ec7 th\u1ed1ng b\u00e1o ch\u00e1y, n\u00fat d\u1eebng kh\u1ea9n c\u1ea5p, ho\u1eb7c c\u1ea3m bi\u1ebfn kh\u00ed \u0111\u1ed9c. \u0110\u1ec3 hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 c\u00e1ch c\u1ea7u dao ho\u1ea1t \u0111\u1ed9ng tr\u01b0\u1edbc khi shunt trip \u0111\u01b0\u1ee3c th\u00eam v\u00e0o, b\u00e0i vi\u1ebft c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 <a href=\"https:\/\/huyuglobal.com\/vi\/blog\/how-does-a-shunt-trip-breaker-work\/\">c\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u1ea7u dao shunt trip<\/a> gi\u1ea3i th\u00edch c\u01a1 ch\u1ebf b\u00ean trong v\u00e0 chu\u1ed7i \u0111i\u1ec7n m\u1ed9t c\u00e1ch chi ti\u1ebft.<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3181\" src=\"https:\/\/huyuglobal.com\/wp-content\/uploads\/2026\/07\/How-a-Shunt-Trip-Works-The-Electrical-and-Mechanical-Sequence.webp\" alt=\"C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a Shunt Trip Chu tr\u00ecnh \u0111i\u1ec7n v\u00e0 c\u01a1 h\u1ecdc\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>C\u00e1ch m\u1ed9t Shunt Trip ho\u1ea1t \u0111\u1ed9ng: Chu\u1ed7i \u0111i\u1ec7n v\u00e0 c\u01a1 kh\u00ed<\/h2>\n<p>M\u1ed9t c\u1ea7u dao ho\u1ea1t \u0111\u1ed9ng b\u00ean trong khi n\u00f3 b\u1ecb k\u00edch ho\u1ea1t do qu\u00e1 t\u1ea3i. Ph\u1ea7n bimetallic u\u1ed1n cong ho\u1eb7c cu\u1ed9n \u0111i\u1ec7n t\u1eeb l\u1ecfng ra, v\u00e0 do \u0111\u00f3 ch\u1ed1t \u0111\u01b0\u1ee3c gi\u1ea3i ph\u00f3ng. C\u00e1ch ho\u1ea1t \u0111\u1ed9ng c\u1ee7a c\u1ea7u dao shunt c\u00f3 ch\u00fat kh\u00e1c bi\u1ec7t v\u00ec vi\u1ec7c k\u00edch ho\u1ea1t x\u1ea3y ra b\u00ean trong nh\u01b0ng k\u1ebft qu\u1ea3 th\u00ec gi\u1ed1ng nhau. Quy tr\u00ecnh nh\u01b0 sau:<\/p>\n<ol>\n<li><span style=\"color: #ff0000;\">M\u1ed9t ti\u1ebfp \u0111i\u1ec3m th\u01b0\u1eddng m\u1edf \u0111\u00f3ng l\u1ea1i trong m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n b\u00ean ngo\u00e0i.<\/span>\u00a0Ti\u1ebfp \u0111i\u1ec3m n\u00e0y c\u00f3 th\u1ec3 thu\u1ed9c v\u1ec1 b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n b\u00e1o ch\u00e1y, c\u00f4ng t\u1eafc ng\u1eaft kh\u1ea9n c\u1ea5p, m\u1ed9t c\u00f4ng t\u1eafc vi m\u00f4 cho h\u1ec7 th\u1ed1ng ph\u00f2ng ch\u00e1y Ansul, m\u1ed9t c\u1ea3m bi\u1ebfn cho kh\u00ed \u0111\u1ed9c, ho\u1eb7c m\u1ed9t \u0111\u1ea7u ra c\u1ee7a h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd c\u01a1 s\u1edf. N\u00f3 k\u1ebft n\u1ed1i cu\u1ed9n shunt trip v\u1edbi ngu\u1ed3n \u0111i\u1ec7n \u0111i\u1ec1u khi\u1ec3n n\u00f3, th\u01b0\u1eddng l\u00e0 120 volt xoay chi\u1ec1u ho\u1eb7c 24 volt m\u1ed9t chi\u1ec1u.<\/li>\n<li><span style=\"color: #ff0000;\">Cu\u1ed9n shunt trip \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n.<\/span>\u00a0Khi \u0111i\u1ec7n \u0111i qua cu\u1ed9n, t\u1eeb tr\u01b0\u1eddng k\u00e9o m\u1ed9t ph\u1ea7n nh\u1ecf g\u1ecdi l\u00e0 plunger. Plunger sau \u0111\u00f3 t\u1ea1o ra m\u1ed9t k\u1ebft n\u1ed1i c\u01a1 kh\u00ed v\u1edbi thanh k\u00edch ho\u1ea1t b\u00ean trong c\u1ee7a c\u1ea7u dao. \u0110\u00e2y l\u00e0 c\u00f9ng m\u1ed9t c\u01a1 ch\u1ebf ch\u1ed1t m\u00e0 c\u00e1c y\u1ebfu t\u1ed1 nhi\u1ec7t v\u00e0 t\u1eeb t\u00ednh t\u00e1c \u0111\u1ed9ng l\u00ean.<\/li>\n<li><span style=\"color: #ff0000;\">Ch\u1ed1t k\u00edch ho\u1ea1t \u0111\u01b0\u1ee3c gi\u1ea3i ph\u00f3ng.<\/span>\u00a0Piston va ch\u1ea1m v\u00e0o thanh k\u00edch ho\u1ea1t, d\u1eabn \u0111\u1ebfn vi\u1ec7c ch\u1ed1t m\u1edf v\u00e0 n\u0103ng l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef trong c\u01a1 ch\u1ebf c\u1ea7u dao ho\u1ea1t \u0111\u1ed9ng \u0111\u1ec3 t\u00e1ch c\u00e1c ti\u1ebfp \u0111i\u1ec3m ch\u00ednh. Cu\u1ed1n s\u00e1ch gi\u1edd \u0111\u00e2y chuy\u1ec3n sang v\u1ecb tr\u00ed TRIP.<\/li>\n<li><span style=\"color: #ff0000;\">M\u1ea1ch \u0111i\u1ec7n \u0111\u01b0\u1ee3c ng\u1eaft n\u0103ng l\u01b0\u1ee3ng.\u00a0<\/span>Ngu\u1ed3n cung \u0111\u01b0\u1ee3c t\u00e1ch ra kh\u1ecfi t\u1ea3i, v\u00e0 c\u1ea7u dao gi\u1eef v\u1ecb tr\u00ed TRIP cho \u0111\u1ebfn khi th\u1ef1c hi\u1ec7n vi\u1ec7c \u0111\u1eb7t l\u1ea1i b\u1eb1ng tay. Cu\u1ed9n d\u00e2y shunt trip \u1edf tr\u1ea1ng th\u00e1i kh\u00f4ng c\u00f3 n\u0103ng l\u01b0\u1ee3ng do vi\u1ec7c m\u1edf l\u1ea1i ti\u1ebfp \u0111i\u1ec3m \u0111i\u1ec1u khi\u1ec3n ho\u1eb7c h\u00e0nh \u0111\u1ed9ng c\u1ee7a c\u01a1 ch\u1ebf ng\u1eaft b\u00ean trong.<\/li>\n<\/ol>\n<p>Vi\u1ec7c \u0111\u1eb7t l\u1ea1i c\u1ea7u dao shunt trip di\u1ec5n ra theo c\u00e1ch gi\u1ed1ng h\u1ec7t nh\u01b0 c\u1ea7u dao ti\u00eau chu\u1ea9n; b\u1ea1n ph\u1ea3i xoay c\u00f4ng t\u1eafc tr\u01b0\u1edbc ti\u00ean \u0111\u1ebfn v\u1ecb tr\u00ed OFF v\u00e0 sau \u0111\u00f3 \u0111\u1ebfn v\u1ecb tr\u00ed ON. H\u00e0nh \u0111\u1ed9ng \u0111\u1eb7t l\u1ea1i ph\u1ee5c v\u1ee5 \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng n\u1ea1p l\u1ea1i c\u01a1 ch\u1ebf shunt v\u00e0 chu\u1ea9n b\u1ecb c\u1ea7u dao cho l\u1ea7n k\u00edch ho\u1ea1t ti\u1ebfp theo. S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa c\u1ea7u dao shunt trip v\u00e0 c\u1ea7u dao ti\u00eau chu\u1ea9n, tuy nhi\u00ean, kh\u00f4ng n\u1eb1m \u1edf ph\u01b0\u01a1ng ph\u00e1p \u0111\u1eb7t l\u1ea1i m\u00e0 \u1edf c\u00e1ch kh\u1edfi \u0111\u1ed9ng trip.<\/p>\n<h2>C\u00e1ch m\u00e0 C\u1ea7u Dao Shunt Trip Kh\u00e1c v\u1edbi C\u1ea7u Dao Ti\u00eau Chu\u1ea9n<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u0110\u1eb7c \u0111i\u1ec3m<\/th>\n<th>C\u1ea7u Dao \u0110i\u1ec7n Ti\u00eau Chu\u1ea9n<\/th>\n<th>C\u1ea7u Dao Shunt Trip<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Ph\u01b0\u01a1ng ph\u00e1p k\u00edch ho\u1ea1t<\/strong><\/td>\n<td>Qu\u00e1 t\u1ea3i nhi\u1ec7t v\u00e0 ng\u1eafn m\u1ea1ch t\u1eeb t\u00ednh ch\u1ec9<\/td>\n<td>Nhi\u1ec7t, t\u1eeb t\u00ednh, c\u1ed9ng v\u1edbi k\u00edch ho\u1ea1t \u0111i\u1ec7n t\u1eeb xa qua m\u1ed9t cu\u1ed9n d\u00e2y b\u00ean trong<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0110i\u1ec1u khi\u1ec3n b\u00ean ngo\u00e0i<\/strong><\/td>\n<td>Kh\u00f4ng \u2014 c\u1ea7u dao ch\u1ec9 ph\u1ea3n \u1ee9ng v\u1edbi d\u00f2ng \u0111i\u1ec7n tr\u00ean m\u1ea1ch c\u1ee7a ch\u00ednh n\u00f3<\/td>\n<td>B\u1ecb k\u00edch ho\u1ea1t b\u1edfi m\u1ed9t \u0111i\u1ec7n \u00e1p b\u00ean ngo\u00e0i \u00e1p d\u1ee5ng v\u00e0o m\u1ed9t c\u1eb7p \u0111\u1ea7u n\u1ed1i \u0111i\u1ec1u khi\u1ec3n ho\u1eb7c d\u00e2y d\u1eabn pigtail<\/td>\n<\/tr>\n<tr>\n<td><strong>\u0110i\u1ec7n \u00e1p \u0111i\u1ec1u khi\u1ec3n<\/strong><\/td>\n<td>Kh\u00f4ng \u00e1p d\u1ee5ng<\/td>\n<td>Th\u00f4ng th\u01b0\u1eddng 120 VAC ho\u1eb7c 24 VDC; ph\u1ea3i \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh khi \u0111\u1eb7t h\u00e0ng v\u00e0 ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi ngu\u1ed3n \u0111i\u1ec7n \u0111i\u1ec1u khi\u1ec3n c\u00f3 s\u1eb5n<\/td>\n<\/tr>\n<tr>\n<td><strong>\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/strong><\/td>\n<td>B\u1ea3o v\u1ec7 m\u1ea1ch nh\u00e1nh ti\u00eau chu\u1ea9n trong c\u00e1c b\u1ea3ng \u0111i\u1ec7n d\u00e2n d\u1ee5ng v\u00e0 th\u01b0\u01a1ng m\u1ea1i<\/td>\n<td>Ng\u1eebng ho\u1ea1t \u0111\u1ed9ng an to\u00e0n trong tr\u01b0\u1eddng h\u1ee3p h\u1ecfa ho\u1ea1n, m\u1ea1ch d\u1eebng kh\u1ea9n c\u1ea5p, c\u00e1ch ly t\u1ea3i t\u1eeb xa, ng\u1eaft ngu\u1ed3n \u0111i\u1ec7n thang m\u00e1y, ng\u0103n ch\u1eb7n b\u1ebfp<\/td>\n<\/tr>\n<tr>\n<td><strong>H\u00ecnh th\u1ee9c v\u1eadt l\u00fd<\/strong><\/td>\n<td>Th\u00e2n c\u1ea7u dao ti\u00eau chu\u1ea9n v\u1edbi m\u1ed9t tay c\u1ea7m \u0111\u01a1n<\/td>\n<td>Th\u00e2n c\u1ea7u dao ti\u00eau chu\u1ea9n v\u1edbi hai d\u00e2y \u0111i\u1ec1u khi\u1ec3n \u0111i\u1ec7n \u00e1p th\u1ea5p b\u1ed5 sung ho\u1eb7c \u0111\u1ea7u n\u1ed1i; n\u1ebfu kh\u00f4ng s\u1ebd gi\u1ed1ng h\u1ec7t v\u1ec1 m\u1eb7t h\u00ecnh th\u1ee9c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3182\" src=\"https:\/\/huyuglobal.com\/wp-content\/uploads\/2026\/07\/How-a-Shunt-Trip-Breaker-Differs-from-a-Standard-Breaker.webp\" alt=\"C\u00e1ch m\u00e0 C\u1ea7u Dao Shunt Trip Kh\u00e1c v\u1edbi C\u1ea7u Dao Ti\u00eau Chu\u1ea9n\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>N\u01a1i C\u1ea7n C\u1ea7u Dao Shunt Trip<\/h2>\n<p>T\u00ednh n\u0103ng shunt trip kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t t\u00f9y ch\u1ecdn b\u1ed5 sung. Thay v\u00e0o \u0111\u00f3, n\u00f3 \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u b\u1edfi c\u00e1c quy \u0111\u1ecbnh \u0111i\u1ec7n trong nhi\u1ec1u l\u1eafp \u0111\u1eb7t, do \u0111\u00f3 \u0111\u1ea3m b\u1ea3o ngu\u1ed3n cung \u0111i\u1ec7n b\u1ecb c\u1eaft \u0111\u1ee9t \u1edf nh\u1eefng khu v\u1ef1c nguy hi\u1ec3m khi x\u1ea3y ra h\u1ecfa ho\u1ea1n, ph\u00e1t hi\u1ec7n r\u00f2 r\u1ec9 kh\u00ed ho\u1eb7c khi c\u00f3 t\u00edn hi\u1ec7u d\u1eebng kh\u1ea9n c\u1ea5p. C\u00e1c \u1ee9ng d\u1ee5ng ch\u00ednh, d\u1ef1a tr\u00ean B\u1ed9 lu\u1eadt \u0110i\u1ec7n Qu\u1ed1c gia (NEC) v\u00e0 c\u0169ng nh\u01b0 c\u00e1c ti\u00eau chu\u1ea9n c\u1ee7a Hi\u1ec7p h\u1ed9i B\u1ea3o v\u1ec7 Ch\u00e1y Qu\u1ed1c gia (NFPA), bao g\u1ed3m c\u00e1c tr\u01b0\u1eddng h\u1ee3p sau.<\/p>\n<ul>\n<li><span style=\"color: #ff0000;\">Ng\u0103n ch\u1eb7n h\u1ecfa ho\u1ea1n b\u1ebfp th\u01b0\u01a1ng m\u1ea1i.\u00a0<\/span>Trong tr\u01b0\u1eddng h\u1ee3p k\u00edch ho\u1ea1t m\u1ed9t h\u1ec7 th\u1ed1ng Ansul, Range Guard ho\u1eb7c b\u1ea5t k\u1ef3 ph\u01b0\u01a1ng ph\u00e1p h\u00f3a ch\u1ea5t \u01b0\u1edbt n\u00e0o \u0111\u1ec3 d\u1eadp l\u1eeda, t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb ch\u1eefa ch\u00e1y n\u1eb1m d\u01b0\u1edbi m\u00e1i che ph\u1ea3i b\u1ecb ng\u1eaft m\u1ea1ch \u0111i\u1ec7n. Tr\u01b0\u1eddng h\u1ee3p khi m\u1ed9t c\u1ea7u dao t\u1ef1 \u0111\u1ed9ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho m\u1ee5c \u0111\u00edch n\u00e0y l\u00e0 ph\u1ed5 bi\u1ebfn nh\u1ea5t trong th\u1ef1c t\u1ebf. Y\u00eau c\u1ea7u cho \u1ee9ng d\u1ee5ng n\u00e0y xu\u1ea5t ph\u00e1t t\u1eeb m\u00e3 NFPA 96 v\u00e0 t\u1eeb danh s\u00e1ch cho m\u1ed7i h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t. C\u00f4ng t\u1eafc vi m\u00f4 g\u1eafn trong \u0111\u1ea7u \u0111i\u1ec1u khi\u1ec3n c\u1ee7a h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y \u0111\u00f3ng m\u1ed9t trong c\u00e1c ti\u1ebfp \u0111i\u1ec3m c\u1ee7a n\u00f3 v\u00e0 d\u00f2ng \u0111i\u1ec7n b\u1eaft \u0111\u1ea7u ch\u1ea3y v\u00e0o cu\u1ed9n shunt trip, do \u0111\u00f3 m\u1edf m\u1ea1ch cho c\u00e1c c\u1ea7u dao v\u00e0 kh\u00f4ng cho ph\u00e9p c\u00e1c b\u1ebfp chi\u00ean, b\u1ebfp n\u01b0\u1edbng v\u00e0 b\u1ebfp t\u1eeb ho\u1ea1t \u0111\u1ed9ng trong khi h\u1ec7 th\u1ed1ng th\u00f4ng gi\u00f3 v\u1eabn ho\u1ea1t \u0111\u1ed9ng \u0111\u1ec3 lo\u1ea1i b\u1ecf kh\u00f3i.<\/li>\n<li><span style=\"color: #ff0000;\">Ng\u1eaft ngu\u1ed3n \u0111i\u1ec7n thang m\u00e1y.\u00a0<\/span>Vi\u1ec7c ng\u1eaft ngu\u1ed3n \u0111i\u1ec7n ch\u00ednh cho thang m\u00e1y l\u00e0 r\u1ea5t c\u1ea7n thi\u1ebft tr\u01b0\u1edbc khi b\u1eaft \u0111\u1ea7u x\u1ea3 n\u01b0\u1edbc t\u1eeb h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y n\u1eb1m trong ph\u00f2ng m\u00e1y ho\u1eb7c \u0111\u01b0\u1eddng d\u1eabn thang m\u00e1y \u0111\u1ec3 ng\u0103n n\u01b0\u1edbc g\u00e2y ra \u0111i\u1ec7n gi\u1eadt cho l\u00ednh c\u1ee9u h\u1ecfa b\u1eb1ng c\u00e1ch c\u1ea5p \u0111i\u1ec7n cho thi\u1ebft b\u1ecb \u0111i\u1ec7n. Ph\u01b0\u01a1ng ph\u00e1p ti\u00eau chu\u1ea9n \u0111\u1ec3 th\u1ef1c hi\u1ec7n vi\u1ec7c ng\u1eaft n\u00e0y li\u00ean quan \u0111\u1ebfn vi\u1ec7c l\u1eafp \u0111\u1eb7t m\u1ed9t c\u1ea7u dao shunt trip \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n b\u1edfi c\u1ea3m bi\u1ebfn nhi\u1ec7t ho\u1eb7c kh\u00f3i trong \u0111\u01b0\u1eddng d\u1eabn thang m\u00e1y. \u0110i\u1ec1u n\u00e0y tu\u00e2n th\u1ee7 NFPA 72 v\u00e0 \u0110i\u1ec1u 620 c\u1ee7a NEC.<\/li>\n<li><span style=\"color: #ff0000;\">M\u1ea1ch d\u1eebng kh\u1ea9n c\u1ea5p trong m\u00e1y m\u00f3c c\u00f4ng nghi\u1ec7p.<\/span>\u00a0\u0110\u1ec3 th\u1ef1c hi\u1ec7n vi\u1ec7c ng\u1eaft ho\u00e0n to\u00e0n c\u00e1c m\u00e1y m\u00f3c l\u1edbn nh\u01b0 h\u1ec7 th\u1ed1ng b\u0103ng t\u1ea3i ho\u1eb7c c\u00e1c t\u1ebf b\u00e0o s\u1ea3n xu\u1ea5t, m\u1ed9t n\u00fat d\u1eebng kh\u1ea9n c\u1ea5p th\u01b0\u1eddng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 ho\u1ea1t \u0111\u1ed9ng th\u00f4ng qua m\u1ed9t c\u1ea7u dao shunt trip, cho ph\u00e9p m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng v\u00e0 an to\u00e0n \u0111\u1ec3 ng\u1eaft k\u1ebft n\u1ed1i hi\u1ec7u qu\u1ea3 c\u00e1c thi\u1ebft b\u1ecb l\u1edbn m\u00e0 kh\u00f4ng c\u1ea7n cu\u1ed9n ti\u1ebfp \u0111i\u1ec3m \u0111\u1ec3 gi\u1eef d\u00f2ng \u0111i\u1ec7n ch\u1ea3y. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t ph\u1ed5 bi\u1ebfn trong m\u1ed9t s\u1ed1 ng\u00e0nh c\u00f4ng nghi\u1ec7p, bao g\u1ed3m ng\u00e0nh g\u1ed7 v\u00e0 s\u1ea3n xu\u1ea5t n\u1eb7ng.<\/li>\n<li><span style=\"color: #ff0000;\">Gi\u1ea3m t\u1ea3i t\u1eeb xa v\u00e0 qu\u1ea3n l\u00fd t\u00f2a nh\u00e0.<\/span>\u00a0Trong c\u00e1c t\u00f2a nh\u00e0 th\u01b0\u01a1ng m\u1ea1i, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u1ea7u dao shunt trip \u0111\u1ec3 ng\u1eaft k\u1ebft n\u1ed1i c\u00e1c t\u1ea3i kh\u00f4ng c\u1ea7n thi\u1ebft theo l\u1ec7nh c\u1ee7a h\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd t\u00f2a nh\u00e0 ho\u1eb7c b\u1ed9 \u0111i\u1ec1u khi\u1ec3n ph\u1ea3n h\u1ed3i nhu c\u1ea7u, gi\u00fap qu\u1ea3n l\u00fd nhu c\u1ea7u \u0111\u1ec9nh v\u00e0 tr\u00e1nh c\u00e1c kho\u1ea3n ph\u00ed ph\u1ea1t.<\/li>\n<\/ul>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3183\" src=\"https:\/\/huyuglobal.com\/wp-content\/uploads\/2026\/07\/Where-Shunt-Trip-Breakers-Are-Required.webp\" alt=\"N\u01a1i C\u1ea7n C\u1ea7u Dao Shunt Trip\" width=\"1448\" height=\"1086\" \/><\/p>\n<h2>\u0110i\u1ec1u g\u00ec k\u00edch ho\u1ea1t m\u1ed9t shunt trip, v\u00e0 c\u00e1ch m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i<\/h2>\n<p>M\u1ed9t ti\u1ebfp \u0111i\u1ec3m m\u1edf \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 k\u00edch ho\u1ea1t shunt trip, c\u00f3 th\u1ec3 bao g\u1ed3m c\u00e1c thi\u1ebft b\u1ecb nh\u01b0 r\u01a1 le b\u00e1o ch\u00e1y, c\u00f4ng t\u1eafc vi m\u00f4 c\u1ee7a h\u1ec7 th\u1ed1ng d\u1eadp l\u1eeda, ho\u1eb7c r\u01a1 le c\u1ee7a b\u1ed9 \u0111i\u1ec1u khi\u1ec3n l\u1eadp tr\u00ecnh. C\u00e1ch m\u00e0 ch\u1ee9c n\u0103ng shunt trip \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf c\u00f3 ngh\u0129a l\u00e0 m\u1ea1ch ch\u1ec9 n\u00ean \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n trong m\u1ed9t kho\u1ea3ng th\u1eddi gian r\u1ea5t ng\u1eafn, ch\u1ec9 trong th\u1eddi gian c\u1ea7n thi\u1ebft \u0111\u1ec3 c\u1ea7u dao ng\u1eaft. Trong m\u1ed9t s\u1ed1 tr\u01b0\u1eddng h\u1ee3p, ti\u1ebfp \u0111i\u1ec3m \u0111i\u1ec1u khi\u1ec3n c\u00f3 th\u1ec3 gi\u1eef l\u1ea1i, c\u00f3 ngh\u0129a l\u00e0 m\u1ed9t r\u01a1 le ho\u1eb7c c\u00f4ng t\u1eafc ri\u00eang bi\u1ec7t ph\u1ea3i c\u00f3 kh\u1ea3 n\u0103ng ng\u1eaft \u0111i\u1ec7n cho cu\u1ed9n shunt trip khi x\u1ea3y ra s\u1ef1 c\u1ed1 ng\u1eaft; n\u1ebfu kh\u00f4ng l\u00e0m nh\u01b0 v\u1eady, cu\u1ed9n s\u1ebd b\u1ecb ch\u00e1y v\u00e0 ch\u1ee9c n\u0103ng an to\u00e0n s\u1ebd kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng. \u0110i\u1ec7n \u00e1p \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng n\u00ean t\u01b0\u01a1ng \u1ee9ng v\u1edbi \u0111\u1ecbnh m\u1ee9c \u0111i\u1ec7n \u00e1p c\u1ee7a cu\u1ed9n shunt trip. S\u1eed d\u1ee5ng \u0111i\u1ec7n \u00e1p kh\u00e1c s\u1ebd l\u00e0m h\u1ecfng m\u1ea1ch.<\/p>\n<h2>C\u00e1c y\u1ebfu t\u1ed1 c\u1ea7n xem x\u00e9t khi l\u1eafp \u0111\u1eb7t v\u00e0 b\u1ea3o tr\u00ec<\/h2>\n<p>Quy tr\u00ecnh l\u1eafp \u0111\u1eb7t m\u1ed9t c\u1ea7u dao shunt trip g\u1ea7n nh\u01b0 t\u01b0\u01a1ng t\u1ef1 nh\u01b0 vi\u1ec7c l\u1eafp \u0111\u1eb7t b\u1ea5t k\u1ef3 c\u1ea7u dao ti\u00eau chu\u1ea9n n\u00e0o c\u00f3 k\u00edch th\u01b0\u1edbc khung t\u01b0\u01a1ng t\u1ef1, nh\u01b0ng c\u00f3 m\u1ed9t y\u1ebfu t\u1ed1 quan tr\u1ecdng c\u1ea7n xem x\u00e9t - hai d\u00e2y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u01a1 ch\u1ebf shunt trip ph\u1ea3i \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi m\u1ea1ch ho\u1ea1t \u0111\u1ed9ng b\u00ean ngo\u00e0i. Nh\u1eefng d\u00e2y n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i sao cho c\u00e1c \u0111\u1ea7u c\u1ee7a ch\u00fang, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 pigtails, c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y b\u00ean ngo\u00e0i v\u1ecf c\u1ee7a c\u1ea7u dao. Nh\u01b0ng khi k\u1ebft n\u1ed1i ch\u00fang, c\u0169ng quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111\u1ecbnh h\u01b0\u1edbng ch\u00ednh x\u00e1c n\u1ebfu c\u1ea7n thi\u1ebft, v\u00ec cu\u1ed9n d\u00e2y ho\u1ea1t \u0111\u1ed9ng tr\u00ean d\u00f2ng \u0111i\u1ec7n m\u1ed9t chi\u1ec1u sau khi quy tr\u00ecnh l\u1eafp \u0111\u1eb7t ho\u00e0n t\u1ea5t, kh\u00f4ng c\u1ea7n b\u1ea5t k\u1ef3 ho\u1ea1t \u0111\u1ed9ng b\u1ea3o tr\u00ec \u0111\u1eb7c bi\u1ec7t n\u00e0o cho c\u1ea7u dao shunt trip. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 b\u1ea3o tr\u00ec th\u00f4ng th\u01b0\u1eddng c\u1ea7n thi\u1ebft cho b\u1ea5t k\u1ef3 c\u1ea7u dao n\u00e0o s\u1ebd \u0111\u1ee7 cho c\u1ea7u dao shunt trip - c\u1ea7u dao c\u1ea7n \u0111\u01b0\u1ee3c ki\u1ec3m tra th\u01b0\u1eddng xuy\u00ean, ki\u1ec3m tra b\u1eb1ng m\u1eaft \u0111\u1ec3 ph\u00e1t hi\u1ec7n qu\u00e1 nhi\u1ec7t v\u00e0 \u0103n m\u00f2n, c\u0169ng nh\u01b0 \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m th\u1ec9nh tho\u1ea3ng. Vi\u1ec7c th\u1eed nghi\u1ec7m th\u01b0\u1eddng xuy\u00ean c\u1ea7u dao shunt trip n\u00ean \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u00edt nh\u1ea5t m\u1ed9t l\u1ea7n m\u1ed7i n\u0103m nh\u01b0 \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t b\u1edfi NFPA v\u00e0 c\u00e1c nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb, \u0111i\u1ec1u n\u00e0y g\u1ee3i \u00fd vi\u1ec7c m\u00f4 ph\u1ecfng t\u00ecnh hu\u1ed1ng kh\u1ea9n c\u1ea5p v\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u1ea7u dao ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang c\u00e1ch khi c\u1ea7n thi\u1ebft.<\/p>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 \u0111i\u1ec7n n\u1eb1m c\u1ea1nh c\u00e1c c\u1ea7u dao shunt trip trong m\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n hi\u1ec7n \u0111\u1ea1i - c\u00e1c MCB ti\u00eau chu\u1ea9n, c\u00e1c c\u1ea7u dao GFCI, c\u00e1c RCBO v\u00e0 c\u00e1c c\u1ea7u dao c\u00f3 \u0111\u1ecbnh m\u1ee9c DC cho c\u00e1c \u1ee9ng d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi v\u00e0 pin - HUYU s\u1ea3n xu\u1ea5t m\u1ed9t lo\u1ea1t c\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 \u0111\u01b0\u1ee3c ch\u1ee9ng nh\u1eadn. M\u1ed9t m\u1ea1ch y\u00eau c\u1ea7u shunt trip \u0111\u1ec3 t\u00edch h\u1ee3p an to\u00e0n ch\u00e1y c\u00f3 th\u1ec3 c\u0169ng y\u00eau c\u1ea7u b\u1ea3o v\u1ec7 r\u00f2 r\u1ec9 \u0111\u1ea5t cho c\u00e1c \u1ed5 c\u1eafm m\u00e0 n\u00f3 ph\u1ee5c v\u1ee5, v\u00e0 m\u1ed9t RCBO nh\u01b0 <a href=\"https:\/\/huyuglobal.com\/vi\/product\/hum18le-63-rcbo-breaker\/\">HUM18LE\u201163 RCBO<\/a> k\u1ebft h\u1ee3p b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng v\u00e0 d\u00f2ng r\u00f2 trong m\u1ed9t thi\u1ebft b\u1ecb DIN\u2011rail duy nh\u1ea5t. \u0110\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 ch\u1ecdn b\u1ed9 ng\u1eaft ph\u00f9 h\u1ee3p cho b\u1ea5t k\u1ef3 m\u1ea1ch n\u00e0o, h\u01b0\u1edbng d\u1eabn c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 <a href=\"https:\/\/huyuglobal.com\/vi\/blog\/what-size-circuit-breaker-do-i-need\/\">k\u00edch th\u01b0\u1edbc c\u1ea7u dao b\u1ea1n c\u1ea7n<\/a> gi\u1ea3i th\u00edch quy tr\u00ecnh \u0111\u1ecbnh c\u1ee1 d\u1ef1a tr\u00ean NEC cho c\u1ea3 \u1ee9ng d\u1ee5ng ti\u00eau chu\u1ea9n v\u00e0 chuy\u00ean bi\u1ec7t.<\/p>\n<h2>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n<h3>\u0110i\u1ec1u g\u00ec k\u00edch ho\u1ea1t shunt trip?<\/h3>\n<p>C\u01a1 ch\u1ebf shunt trip \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t khi m\u1ed9t ti\u1ebfp \u0111i\u1ec3m b\u00ean ngo\u00e0i th\u01b0\u1eddng \u1edf v\u1ecb tr\u00ed m\u1edf \u0111\u00f3ng l\u1ea1i do s\u1ef1 c\u1ed1 an to\u00e0n. Ti\u1ebfp \u0111i\u1ec3m n\u00e0y c\u00f3 th\u1ec3 l\u00e0 r\u01a1 le b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n b\u00e1o ch\u00e1y, c\u00f4ng t\u1eafc, c\u1ea3m bi\u1ebfn nhi\u1ec7t ho\u1eb7c kh\u00f3i, c\u00f4ng t\u1eafc vi m\u00f4 c\u1ee7a h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y, c\u1ea3m bi\u1ebfn kh\u00ed \u0111\u1ed9c, n\u00fat d\u1eebng kh\u1ea9n c\u1ea5p ho\u1eb7c k\u1ebft qu\u1ea3 \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi h\u1ec7 th\u1ed1ng gi\u00e1m s\u00e1t t\u00f2a nh\u00e0. Khi ti\u1ebfp \u0111i\u1ec3m \u0111\u00f3ng l\u1ea1i, \u0111i\u1ec7n \u00e1p \u0111i\u1ec1u khi\u1ec3n, th\u01b0\u1eddng trong ph\u1ea1m vi 120 VAC ho\u1eb7c 24 VDC, k\u00edch ho\u1ea1t cu\u1ed9n shunt trip, d\u1eabn \u0111\u1ebfn vi\u1ec7c ng\u1eaft b\u1ed9 ng\u1eaft.<\/p>\n<h3>M\u1ee5c \u0111\u00edch c\u1ee7a shunt trip l\u00e0 g\u00ec?<\/h3>\n<p>Shunt trip \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 cho ph\u00e9p ng\u1eaft t\u1eeb xa b\u1ed9 ng\u1eaft m\u1ea1ch th\u00f4ng qua t\u00edn hi\u1ec7u an to\u00e0n b\u00ean ngo\u00e0i, c\u1eaft ngu\u1ed3n \u0111i\u1ec7n kh\u1ecfi khu v\u1ef1c nguy hi\u1ec3m m\u00e0 kh\u00f4ng c\u1ea7n ai ph\u1ea3i t\u1eaft th\u1ee7 c\u00f4ng. C\u00f4ng ngh\u1ec7 n\u00e0y cho ph\u00e9p k\u1ebft h\u1ee3p ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng c\u1ee7a b\u1ed9 ng\u1eaft v\u1edbi c\u00e1c ch\u1ee9c n\u0103ng an to\u00e0n sinh m\u1ea1ng do h\u1ec7 th\u1ed1ng b\u00e1o ch\u00e1y, thi\u1ebft b\u1ecb d\u1eebng kh\u1ea9n c\u1ea5p v\u00e0 c\u1ea3m bi\u1ebfn kh\u00ed cung c\u1ea5p.<\/p>\n<h3>B\u1ed9 ng\u1eaft shunt trip \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u \u1edf \u0111\u00e2u?<\/h3>\n<p><strong>B\u1ed9 ng\u1eaft shunt trip<\/strong>\u00a0Ph\u1ea7n l\u1edbn \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u trong b\u1ebfp th\u01b0\u01a1ng m\u1ea1i \u0111\u1ec3 t\u1eaft thi\u1ebft b\u1ecb n\u1ea5u \u0103n khi h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t, trong ph\u00f2ng m\u00e1y thang m\u00e1y \u0111\u1ec3 ng\u1eaft ngu\u1ed3n \u0111i\u1ec7n thang m\u00e1y tr\u01b0\u1edbc khi h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y b\u1eb1ng n\u01b0\u1edbc \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t, v\u00e0 trong m\u00e1y m\u00f3c c\u00f4ng nghi\u1ec7p \u0111\u1ec3 th\u1ef1c hi\u1ec7n m\u1ea1ch d\u1eebng kh\u1ea9n c\u1ea5p v\u1edbi \u0111\u1ea3m b\u1ea3o ng\u1eaft an to\u00e0n. C\u00e1c y\u00eau c\u1ea7u n\u00e0y \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh b\u1edfi NFPA 96, NFPA 72 v\u00e0 NEC.<\/p>\n<h3>Shunt trip th\u01b0\u1eddng \u1edf tr\u1ea1ng th\u00e1i m\u1edf hay \u0111\u00f3ng?<\/h3>\n<p>M\u1ea1ch cho cu\u1ed9n shunt trip th\u01b0\u1eddng \u1edf tr\u1ea1ng th\u00e1i m\u1edf. Trong ho\u1ea1t \u0111\u1ed9ng b\u00ecnh th\u01b0\u1eddng c\u1ee7a m\u1ea1ch, c\u00e1c ti\u1ebfp \u0111i\u1ec3m \u0111i\u1ec1u khi\u1ec3n v\u1eabn m\u1edf v\u00e0 kh\u00f4ng cung c\u1ea5p \u0111i\u1ec7n cho cu\u1ed9n. Khi x\u1ea3y ra s\u1ef1 c\u1ed1 an to\u00e0n, c\u00e1c ti\u1ebfp \u0111i\u1ec3m \u0111\u00f3ng l\u1ea1i, do \u0111\u00f3 \u0111i\u1ec7n \u00e1p \u0111\u01b0\u1ee3c c\u1ea5p cho cu\u1ed9n, cu\u1ed9n \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t d\u1eabn \u0111\u1ebfn vi\u1ec7c ng\u1eaft b\u1ed9 ng\u1eaft \u0111i\u1ec7n. Khi b\u1ed9 ng\u1eaft \u0111ang b\u1eadt, c\u00e1c ti\u1ebfp \u0111i\u1ec3m ngu\u1ed3n ch\u00ednh \u0111\u00f3ng, trong khi khi b\u1ecb ng\u1eaft ho\u1eb7c t\u1eaft, c\u00e1c ti\u1ebfp \u0111i\u1ec3m m\u1edf. Thu\u1eadt ng\u1eef \u201cth\u01b0\u1eddng m\u1edf\u201d li\u00ean quan \u0111\u1ebfn m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n k\u00edch ho\u1ea1t shunt trip.<\/p>\n<h2>T\u00e0i li\u1ec7u tham kh\u1ea3o<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.nfpa.org\" rel=\"nofollow noopener\" target=\"_blank\">Hi\u1ec7p h\u1ed9i B\u1ea3o v\u1ec7 Ch\u00e1y Qu\u1ed1c gia (NFPA) \u2014 NFPA 96 v\u00e0 NFPA 72<\/a>. Ti\u00eau chu\u1ea9n \u0111i\u1ec1u ch\u1ec9nh h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y b\u1ebfp th\u01b0\u01a1ng m\u1ea1i v\u00e0 ng\u1eaft ngu\u1ed3n thang m\u00e1y, bao g\u1ed3m y\u00eau c\u1ea7u ng\u1eaft \u0111i\u1ec7n t\u1ef1 \u0111\u1ed9ng qua b\u1ed9 ng\u1eaft shunt trip.<\/li>\n<li><a href=\"https:\/\/www.eaton.com\" rel=\"nofollow noopener\" target=\"_blank\">Eaton \u2014 B\u1ed9 ng\u1eaft Shunt Trip v\u00e0 Ph\u1ee5 ki\u1ec7n<\/a>. Nh\u00e0 s\u1ea3n xu\u1ea5t b\u1ed9 ng\u1eaft shunt trip d\u00e2n d\u1ee5ng v\u00e0 th\u01b0\u01a1ng m\u1ea1i, v\u1edbi h\u01b0\u1edbng d\u1eabn \u1ee9ng d\u1ee5ng v\u00e0 s\u01a1 \u0111\u1ed3 \u0111\u1ea5u d\u00e2y cho c\u00e1c c\u1ea5u h\u00ecnh \u0111i\u1ec1u khi\u1ec3n ph\u1ed5 bi\u1ebfn.<\/li>\n<li><a href=\"https:\/\/www.se.com\" rel=\"nofollow noopener\" target=\"_blank\">Schneider Electric \u2014 Ph\u1ee5 ki\u1ec7n Shunt Trip v\u00e0 Gi\u1ea3i ph\u00f3ng \u0111i\u1ec7n \u00e1p th\u1ea5p<\/a>. Th\u00f4ng tin nh\u00e0 s\u1ea3n xu\u1ea5t v\u1ec1 c\u00e1c b\u1ed9 ph\u1eadn shunt trip cho Square D v\u00e0 c\u00e1c d\u00f2ng b\u1ed9 ng\u1eaft kh\u00e1c, bao g\u1ed3m c\u00e1c t\u00f9y ch\u1ecdn \u0111i\u1ec7n \u00e1p \u0111i\u1ec1u khi\u1ec3n v\u00e0 y\u00eau c\u1ea7u l\u1eafp \u0111\u1eb7t.<\/li>\n<li><a href=\"https:\/\/www.esfi.org\" rel=\"nofollow noopener\" target=\"_blank\">Electrical Safety Foundation International (ESFI) \u2014 An to\u00e0n \u0111i\u1ec7n trong b\u1ebfp th\u01b0\u01a1ng m\u1ea1i<\/a>. H\u01b0\u1edbng d\u1eabn v\u1ec1 t\u00edch h\u1ee3p h\u1ec7 th\u1ed1ng b\u1ea3o v\u1ec7 \u0111i\u1ec7n v\u00e0 h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y trong m\u00f4i tr\u01b0\u1eddng n\u1ea5u \u0103n th\u01b0\u01a1ng m\u1ea1i.<\/li>\n<\/ul>\n<p>A <strong>ng\u1eaft m\u1ea1ch kh\u1ea9n c\u1ea5p<\/strong> l\u00e0 li\u00ean k\u1ebft \u0111i\u1ec7n gi\u1eefa b\u1ed9 ng\u1eaft m\u1ea1ch v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng an to\u00e0n b\u1ea3o v\u1ec7 t\u00f2a nh\u00e0 c\u00f9ng ng\u01b0\u1eddi s\u1eed d\u1ee5ng. N\u00f3 l\u00e0 m\u1ed9t cu\u1ed9n solenoid \u0111i\u1ec7n t\u1eeb \u0111\u01a1n gi\u1ea3n, khi \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n b\u1edfi b\u00e1o ch\u00e1y, h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y ho\u1eb7c n\u00fat d\u1eebng kh\u1ea9n c\u1ea5p, s\u1ebd c\u01a1 h\u1ecdc k\u00edch ho\u1ea1t ng\u1eaft m\u1ea1ch v\u00e0 ng\u1eaft ngu\u1ed3n \u0111i\u1ec7n kh\u1ecfi khu v\u1ef1c nguy hi\u1ec3m. N\u00f3 \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u theo quy chu\u1ea9n trong b\u1ebfp th\u01b0\u01a1ng m\u1ea1i, ph\u00f2ng m\u00e1y thang m\u00e1y v\u00e0 m\u1ea1ch d\u1eebng kh\u1ea9n c\u1ea5p c\u00f4ng nghi\u1ec7p, v\u00e0 ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m tra h\u00e0ng n\u0103m \u0111\u1ec3 x\u00e1c nh\u1eadn ho\u1ea1t \u0111\u1ed9ng khi s\u1ef1 ki\u1ec7n thi\u1ebft k\u1ebf x\u1ea3y ra. B\u1ed9 ng\u1eaft ti\u00eau chu\u1ea9n b\u1ea3o v\u1ec7 d\u00e2y d\u1eabn. B\u1ed9 ng\u1eaft shunt trip b\u1ea3o v\u1ec7 d\u00e2y d\u1eabn v\u00e0 ph\u1ea3n h\u1ed3i khi b\u00e1o ch\u00e1y y\u00eau c\u1ea7u m\u1edf \u2014 v\u00e0 ch\u1ee9c n\u0103ng k\u00e9p n\u00e0y l\u00e0m cho n\u00f3 tr\u1edf th\u00e0nh thi\u1ebft b\u1ecb an to\u00e0n thi\u1ebft y\u1ebfu trong b\u1ea5t k\u1ef3 t\u00f2a nh\u00e0 n\u00e0o n\u01a1i c\u00f3 th\u1ec3 x\u1ea3y ra ch\u00e1y, r\u00f2 r\u1ec9 kh\u00ed ho\u1eb7c d\u1eebng kh\u1ea9n c\u1ea5p c\u1ea7n t\u1ef1 \u0111\u1ed9ng v\u00e0 ngay l\u1eadp t\u1ee9c ng\u1eaft ngu\u1ed3n \u0111i\u1ec7n.<\/p>","protected":false},"excerpt":{"rendered":"<p>When the fire alarm goes off in a hotel kitchen, several processes need to take place at the same time. The alarm goes off, and the lights flash, the fire suppression system sprays the extinguishing chemical on cooking equipment, and, most importantly of all, all the electric power to cooking equipment is cut off immediately, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3180,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-3178","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/huyuglobal.com\/vi\/wp-json\/wp\/v2\/posts\/3178","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/huyuglobal.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/huyuglobal.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/huyuglobal.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/huyuglobal.com\/vi\/wp-json\/wp\/v2\/comments?post=3178"}],"version-history":[{"count":2,"href":"https:\/\/huyuglobal.com\/vi\/wp-json\/wp\/v2\/posts\/3178\/revisions"}],"predecessor-version":[{"id":3184,"href":"https:\/\/huyuglobal.com\/vi\/wp-json\/wp\/v2\/posts\/3178\/revisions\/3184"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/huyuglobal.com\/vi\/wp-json\/wp\/v2\/media\/3180"}],"wp:attachment":[{"href":"https:\/\/huyuglobal.com\/vi\/wp-json\/wp\/v2\/media?parent=3178"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/huyuglobal.com\/vi\/wp-json\/wp\/v2\/categories?post=3178"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/huyuglobal.com\/vi\/wp-json\/wp\/v2\/tags?post=3178"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}