{"id":3167,"date":"2026-07-21T15:39:42","date_gmt":"2026-07-21T15:39:42","guid":{"rendered":"https:\/\/huyuglobal.com\/?p=3167"},"modified":"2026-07-21T15:39:44","modified_gmt":"2026-07-21T15:39:44","slug":"how-much-to-replace-a-circuit-breaker","status":"publish","type":"post","link":"https:\/\/huyuglobal.com\/vi\/blog\/how-much-to-replace-a-circuit-breaker\/","title":{"rendered":"Thay th\u1ebf m\u1ed9t c\u1ea7u dao t\u1ed1n bao nhi\u00eau: Ph\u00e2n t\u00edch chi ph\u00ed ho\u00e0n ch\u1ec9nh"},"content":{"rendered":"

M\u1ed9t ch\u1ee7 nh\u00e0 \u1edf Atlanta nh\u1eadn th\u1ea5y trong l\u1ea7n th\u1ee9 ba c\u00f4 \u1ea5y ph\u1ea3i \u0111\u1eb7t l\u1ea1i c\u1ea7u dao b\u1ebfp r\u1eb1ng n\u00f3 \u1ea5m khi ch\u1ea1m v\u00e0o v\u00e0 c\u00f3 m\u00f9i nh\u1ef1a ch\u00e1y. C\u00f4 \u1ea5y ngay l\u1eadp t\u1ee9c g\u1ecdi th\u1ee3 \u0111i\u1ec7n, ng\u01b0\u1eddi \u0111\u00e3 thay th\u1ebf c\u1ea7u dao 20-amp b\u1ecb l\u1ed7i c\u1ee7a c\u00f4 \u1ea5y trong v\u00f2ng ch\u01b0a \u0111\u1ea7y ba m\u01b0\u01a1i ph\u00fat v\u1edbi t\u1ed5ng chi ph\u00ed l\u00e0 $185 \u2014 ch\u1ec9 $15 cho ph\u1ea7n c\u1ee9ng thay th\u1ebf v\u00e0 $170 cho cu\u1ed9c g\u1ecdi d\u1ecbch v\u1ee5 v\u00e0 c\u00f4ng lao \u0111\u1ed9ng. C\u00e2u h\u1ecfi v\u1ec1 chi ph\u00ed thay th\u1ebf c\u1ea7u dao l\u00e0 bao nhi\u00eau<\/strong> th\u01b0\u1eddng c\u00f3 c\u00e2u tr\u1ea3 l\u1eddi \u0111\u01a1n gi\u1ea3n, nh\u01b0ng c\u00e2u tr\u1ea3 l\u1eddi \u0111\u00f2i h\u1ecfi nhi\u1ec1u h\u01a1n ch\u1ec9 l\u00e0 m\u1ed9t ph\u1ea1m vi s\u1ed1 tham chi\u1ebfu $150-$400 cho m\u1ed9t c\u00f4ng vi\u1ec7c thay th\u1ebf c\u1ef1c \u0111\u01a1n \u0111i\u1ec3n h\u00ecnh do th\u1ee3 \u0111i\u1ec7n c\u00f3 gi\u1ea5y ph\u00e9p th\u1ef1c hi\u1ec7n. Chi ph\u00ed th\u1ef1c t\u1ebf ph\u1ee5 thu\u1ed9c m\u1ea1nh m\u1ebd v\u00e0o m\u1ed9t s\u1ed1 y\u1ebfu t\u1ed1 nh\u01b0 lo\u1ea1i c\u1ea7u dao, kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn b\u1ea3ng \u0111i\u1ec7n, an to\u00e0n khi t\u1eaft c\u00f4ng t\u1eafc ch\u00ednh, v\u00e0 c\u00e1c h\u01b0 h\u1ecfng c\u00f3 th\u1ec3 do c\u1ea7u dao c\u0169 g\u00e2y ra cho thanh bus ph\u00eda sau b\u1ea3ng \u0111i\u1ec7n. B\u1eb1ng c\u00e1ch n\u00e0y, ch\u1ee7 nh\u00e0 s\u1ebd chu\u1ea9n b\u1ecb t\u1ed1t h\u01a1n cho chi ph\u00ed s\u1eeda ch\u1eefa v\u00e0 c\u00f3 th\u1ec3 ph\u00e2n bi\u1ec7t \u0111\u01b0\u1ee3c gi\u00e1 h\u1ee3p l\u00fd v\u1edbi b\u00e1o gi\u00e1 b\u1ecb th\u1ed5i ph\u1ed3ng.<\/p>\n

T\u1ed5ng chi ph\u00ed nh\u00ecn t\u1ed5ng quan: Ph\u1ee5 t\u00f9ng, C\u00f4ng lao \u0111\u1ed9ng v\u00e0 Cu\u1ed9c g\u1ecdi d\u1ecbch v\u1ee5<\/h2>\n

B\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y minh h\u1ecda s\u1ef1 ph\u00e2n t\u00edch th\u1ef1c t\u1ebf c\u00e1c chi ph\u00ed li\u00ean quan \u0111\u1ebfn vi\u1ec7c thay th\u1ebf m\u1ed9t c\u1ea7u dao \u0111i\u1ec3n h\u00ecnh trong nh\u00e0. Gi\u00e1 c\u1ea3 ph\u1ea3n \u00e1nh m\u1ee9c gi\u00e1 gi\u1eefa n\u0103m 2025 cho h\u1ea7u h\u1ebft c\u00e1c khu v\u1ef1c \u1edf c\u1ea3 Hoa K\u1ef3 v\u00e0 V\u01b0\u01a1ng qu\u1ed1c Anh. Gi\u00e1 c\u00f4ng lao \u0111\u1ed9ng c\u00f3 th\u1ec3 thay \u0111\u1ed5i theo t\u1eebng khu v\u1ef1c. Th\u00e0nh ph\u1ed1 s\u1ebd t\u00ednh ph\u00ed cao h\u01a1n nhi\u1ec1u so v\u1edbi khu v\u1ef1c n\u00f4ng th\u00f4n nh\u01b0ng gi\u00e1 c\u00e1c linh ki\u1ec7n th\u00ec kh\u00e1 t\u01b0\u01a1ng \u0111\u1ed3ng.<\/p>\n

\"T\u1ed5ng<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
Th\u00e0nh ph\u1ea7n Chi ph\u00ed<\/th>\nPh\u1ea1m vi \u0111i\u1ec3n h\u00ecnh<\/th>\nGhi Ch\u00fa<\/th>\n<\/tr>\n<\/thead>\n
C\u1ea7u dao c\u1ef1c \u0111\u01a1n ti\u00eau chu\u1ea9n (15A ho\u1eb7c 20A)<\/strong><\/td>\n$5\u2013$20<\/td>\nMCB nhi\u1ec7t t\u1eeb c\u01a1 b\u1ea3n cho b\u1ea3ng \u0111i\u1ec7n d\u00e2n d\u1ee5ng. Chi ph\u00ed ph\u1ee5 thu\u1ed9c v\u00e0o th\u01b0\u01a1ng hi\u1ec7u v\u00e0 lo\u1ea1i b\u1ea3ng \u0111i\u1ec7n \u2014 c\u1ea7u dao Square D QO c\u00f3 gi\u00e1 cao h\u01a1n so v\u1edbi lo\u1ea1i t\u01b0\u01a1ng \u0111\u01b0\u01a1ng chung, nh\u01b0ng vi\u1ec7c s\u1eed d\u1ee5ng c\u1ea7u dao \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea \u0111\u00fang l\u00e0 kh\u00f4ng th\u1ec3 th\u01b0\u01a1ng l\u01b0\u1ee3ng.<\/td>\n<\/tr>\n
C\u1ea7u dao c\u1ef1c \u0111\u00f4i (30A\u201360A)<\/strong><\/td>\n$15\u2013$50<\/td>\nD\u00f9ng cho thi\u1ebft b\u1ecb 240 volt \u2014 m\u00e1y s\u1ea5y, b\u00ecnh n\u00f3ng l\u1ea1nh, \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed, b\u1ed9 s\u1ea1c EV. D\u00f2ng \u0111i\u1ec7n l\u1edbn h\u01a1n v\u00e0 ch\u1ec9 s\u1ed1 ng\u1eaft cao h\u01a1n l\u00e0m t\u0103ng gi\u00e1.<\/td>\n<\/tr>\n
C\u1ea7u dao GFCI (c\u1ef1c \u0111\u01a1n)<\/strong><\/td>\n$40\u2013$70<\/td>\nK\u1ebft h\u1ee3p b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng v\u00e0 ch\u1ed1ng r\u00f2 \u0111\u1ea5t trong m\u1ed9t thi\u1ebft b\u1ecb. Y\u00eau c\u1ea7u \u1edf ph\u00f2ng t\u1eafm, b\u1ebfp, gara v\u00e0 m\u1ea1ch ngo\u00e0i tr\u1eddi. \u0110i\u1ec7n t\u1eed b\u00ean trong l\u00e0m t\u0103ng chi ph\u00ed.<\/td>\n<\/tr>\n
C\u1ea7u dao AFCI (c\u1ef1c \u0111\u01a1n)<\/strong><\/td>\n$35\u2013$60<\/td>\nCung c\u1ea5p b\u1ea3o v\u1ec7 ch\u1ed1ng h\u1ed3 quang. Y\u00eau c\u1ea7u \u1edf h\u1ea7u h\u1ebft c\u00e1c khu v\u1ef1c sinh ho\u1ea1t c\u1ee7a nh\u00e0 m\u1edbi. Ch\u1ee9a b\u1ed9 vi x\u1eed l\u00fd ph\u00e2n t\u00edch d\u1ea1ng s\u00f3ng d\u00f2ng \u0111i\u1ec7n \u0111\u1ec3 nh\u1eadn d\u1ea1ng h\u1ed3 quang.<\/td>\n<\/tr>\n
C\u1ea7u dao ch\u1ee9c n\u0103ng k\u00e9p (AFCI\/GFCI)<\/strong><\/td>\n$50\u2013$90<\/td>\nK\u1ebft h\u1ee3p b\u1ea3o v\u1ec7 ch\u1ed1ng h\u1ed3 quang, ch\u1ed1ng r\u00f2 \u0111\u1ea5t v\u00e0 qu\u00e1 d\u00f2ng trong m\u1ed9t thi\u1ebft b\u1ecb duy nh\u1ea5t. B\u1ea3o v\u1ec7 to\u00e0n di\u1ec7n nh\u1ea5t cho m\u1ed9t m\u1ea1ch \u0111\u01a1n.<\/td>\n<\/tr>\n
C\u1ea7u dao ch\u00ednh (100A\u2013200A)<\/strong><\/td>\n$50\u2013$200+<\/td>\nC\u1ea7u dao ch\u00ednh l\u1edbn h\u01a1n, \u0111\u1eaft h\u01a1n v\u00e0 ph\u1ea3i \u0111\u01b0\u1ee3c thay th\u1ebf b\u1edfi th\u1ee3 \u0111i\u1ec7n c\u00f3 gi\u1ea5y ph\u00e9p. C\u00e1c \u0111\u1ea7u c\u1eafm v\u00e0o v\u1eabn c\u00f2n \u0111i\u1ec7n ngay c\u1ea3 khi c\u1ea7u dao ch\u00ednh t\u1eaft, v\u00e0 vi\u1ec7c thay c\u1ea7u dao ch\u00ednh th\u01b0\u1eddng y\u00eau c\u1ea7u k\u00e9o \u0111\u1ed3ng h\u1ed3 ho\u1eb7c ph\u1ed1i h\u1ee3p v\u1edbi c\u00f4ng ty \u0111i\u1ec7n l\u1ef1c.<\/td>\n<\/tr>\n
C\u00f4ng lao \u0111\u1ed9ng (th\u1ee3 \u0111i\u1ec7n, gi\u1edd \u0111\u1ea7u ti\u00ean \/ ph\u00ed g\u1ecdi d\u1ecbch v\u1ee5 t\u1ed1i thi\u1ec3u)<\/strong><\/td>\n$100\u2013$250<\/td>\n\u0110\u00e2y l\u00e0 ph\u1ea7n l\u1edbn nh\u1ea5t trong t\u1ed5ng chi ph\u00ed cho vi\u1ec7c thay th\u1ebf m\u1ed9t c\u1ea7u dao \u0111\u01a1n l\u1ebb. Th\u1eddi gian c\u1ee7a th\u1ee3 \u0111i\u1ec7n bao g\u1ed3m di chuy\u1ec3n, ch\u1ea9n \u0111o\u00e1n, c\u00e1ch ly, thay th\u1ebf, ki\u1ec3m tra v\u00e0 d\u1ecdn d\u1eb9p. Nhi\u1ec1u th\u1ee3 \u0111i\u1ec7n t\u00ednh ph\u00ed g\u1ecdi d\u1ecbch v\u1ee5 t\u1ed1i thi\u1ec3u bao g\u1ed3m gi\u1edd l\u00e0m vi\u1ec7c \u0111\u1ea7u ti\u00ean.<\/td>\n<\/tr>\n
Lao \u0111\u1ed9ng b\u1ed5 sung (n\u1ebfu c\u1ea7n)<\/strong><\/td>\n$50\u2013$150 cho m\u1ed7i gi\u1edd b\u1ed5 sung<\/td>\nN\u1ebfu thanh d\u1eabn \u0111i\u1ec7n b\u1ecb h\u01b0 h\u1ecfng, n\u1ebfu b\u1ea3ng \u0111i\u1ec7n c\u1ea7n \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch ho\u1eb7c s\u1eeda ch\u1eefa, ho\u1eb7c n\u1ebfu c\u1ea7n thay th\u1ebf th\u00eam c\u1ea7u dao, th\u1eddi gian lao \u0111\u1ed9ng s\u1ebd t\u0103ng l\u00ean.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u0110\u1ed1i v\u1edbi m\u1ed9t thay th\u1ebf c\u1ea7u dao \u0111\u01a1n gi\u1ea3n<\/strong> \u2014 m\u1ed9t c\u1ea7u dao \u0111\u01a1n c\u1ef1c 20 amp ti\u00eau chu\u1ea9n, \u0111\u01b0\u1ee3c thay th\u1ebf b\u1edfi th\u1ee3 \u0111i\u1ec7n c\u00f3 gi\u1ea5y ph\u00e9p trong m\u1ed9t b\u1ea3ng \u0111i\u1ec7n hi\u1ec7n \u0111\u1ea1i, d\u1ec5 ti\u1ebfp c\u1eadn \u2014 t\u1ed5ng chi ph\u00ed th\u01b0\u1eddng l\u00e0 $150 \u0111\u1ebfn $250. \u0110\u1ed1i v\u1edbi c\u1ea7u dao chuy\u00ean d\u1ee5ng \u2014 GFCI, AFCI ho\u1eb7c thi\u1ebft b\u1ecb \u0111a ch\u1ee9c n\u0103ng \u2014 t\u1ed5ng chi ph\u00ed t\u0103ng l\u00ean $200 \u0111\u1ebfn $400. \u0110\u1ed1i v\u1edbi thay th\u1ebf c\u1ea7u dao ch\u00ednh, chi ph\u00ed c\u00f3 th\u1ec3 l\u00ean \u0111\u1ebfn $500 \u0111\u1ebfn $800 ho\u1eb7c h\u01a1n, t\u00f9y thu\u1ed9c v\u00e0o \u0111\u1ed9 ph\u1ee9c t\u1ea1p c\u1ee7a ng\u1eaft k\u1ebft n\u1ed1i d\u1ecbch v\u1ee5 v\u00e0 s\u1ef1 ph\u1ed1i h\u1ee3p v\u1edbi ti\u1ec7n \u00edch. C\u00e1c ngu\u1ed3n t\u00e0i nguy\u00ean c\u1ea3i t\u1ea1o nh\u00e0 nh\u01b0 Th\u1ee3 S\u1eeda Ch\u1eefa Gia \u0110\u00ecnh<\/a> v\u00e0 HomeAdvisor<\/a> c\u00f4ng b\u1ed1 d\u1eef li\u1ec7u gi\u00e1 t\u1ed5ng h\u1ee3p h\u1ed7 tr\u1ee3 c\u00e1c ph\u1ea1m vi n\u00e0y.<\/p>\n

Chi ph\u00ed \u1ea9n: Khi vi\u1ec7c thay th\u1ebf c\u1ea7u dao \u0111\u01a1n gi\u1ea3n tr\u1edf th\u00e0nh m\u1ed9t d\u1ef1 \u00e1n l\u1edbn h\u01a1n<\/h2>\n

Kh\u00f4ng ph\u1ea3i t\u1ea5t c\u1ea3 c\u00e1c thay \u0111\u1ed5i c\u1ea7u dao ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 l\u1ea5y c\u1ea7u dao c\u0169 ra v\u00e0 l\u1eafp c\u1ea7u dao m\u1edbi v\u00e0o. C\u00f3 nhi\u1ec1u kh\u00eda c\u1ea1nh c\u00f3 th\u1ec3 bi\u1ebfn m\u1ed9t d\u1ecbch v\u1ee5 $200 th\u00e0nh m\u1ed9t d\u1ecbch v\u1ee5 t\u1ed1n k\u00e9m. Chi ph\u00ed \u201c\u1ea9n\u201d ph\u1ed5 bi\u1ebfn nh\u1ea5t l\u00e0 thanh d\u1eabn \u0111i\u1ec7n b\u1ecb ch\u00e1y. Thanh d\u1eabn \u0111i\u1ec7n l\u00e0 m\u1ed9t d\u00e2y d\u1eabn l\u00e0m b\u1eb1ng kim lo\u1ea1i n\u1eb1m b\u00ean trong b\u1ea3ng \u0111i\u1ec7n v\u00e0 c\u00f3 ch\u1ee9c n\u0103ng truy\u1ec1n \u0111i\u1ec7n \u0111\u1ebfn c\u00e1c c\u1ea7u dao. V\u1ea5n \u0111\u1ec1 l\u00e0 khi m\u1ed9t c\u1ea7u dao b\u1ecb h\u1ed3 quang trong th\u1eddi gian d\u00e0i (th\u01b0\u1eddng x\u1ea3y ra n\u1ebfu c\u1ea7u dao l\u1ecfng tr\u00ean thanh d\u1eabn ho\u1eb7c kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi lo\u1ea1i b\u1ea3ng n\u00e0y), nhi\u1ec7t \u0111\u1ed9 c\u00f3 th\u1ec3 l\u00e0m ch\u00e1y thanh d\u1eabn \u0111i\u1ec7n t\u1ea1i \u0111i\u1ec3m k\u1ebft n\u1ed1i. Do \u0111\u00f3, n\u1ebfu thanh d\u1eabn \u0111i\u1ec7n b\u1ecb ch\u00e1y, n\u00f3 ph\u1ea3i \u0111\u01b0\u1ee3c thay th\u1ebf, \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c b\u1ea3ng \u0111i\u1ec7n c\u0169ng ph\u1ea3i \u0111\u01b0\u1ee3c thay th\u1ebf. Thay th\u1ebf b\u1ea3ng \u0111i\u1ec7n kh\u00e1 t\u1ed1n k\u00e9m \u2013 t\u1eeb $1500 \u0111\u1ebfn $3000 n\u1ebfu ch\u1ec9 l\u00e0m vi\u1ec7c n\u00e0y.<\/p>\n

C\u00e1c \u0111i\u1ec1u ki\u1ec7n b\u1ed5 sung g\u00f3p ph\u1ea7n v\u00e0o chi ph\u00ed thay th\u1ebf \u0111\u01b0\u1ee3c b\u00e1o c\u00e1o l\u00e0 c\u00e1c th\u01b0\u01a1ng hi\u1ec7u b\u1ea3ng \u0111i\u1ec7n \u2013 Federal Pacific Electric Stab\u2011Lok, Zinsco ho\u1eb7c c\u00e1c th\u01b0\u01a1ng hi\u1ec7u Challenger \u0111\u1eddi \u0111\u1ea7u kh\u00e1c. Th\u1ee3 \u0111i\u1ec7n th\u01b0\u1eddng kh\u00f4ng thay th\u1ebf m\u1ed9t c\u1ea7u dao trong c\u00e1c b\u1ea3ng n\u00e0y v\u00ec h\u1ecd coi \u0111\u00f3 l\u00e0 nguy c\u01a1 ch\u00e1y n\u1ed5 v\u00e0 s\u1ebd xem x\u00e9t thay th\u1ebf to\u00e0n b\u1ed9 b\u1ea3ng \u0111i\u1ec7n nh\u01b0 m\u1ed9t gi\u1ea3i ph\u00e1p thay th\u1ebf. C\u00e1c ng\u00f4i nh\u00e0 s\u1eed d\u1ee5ng d\u00e2y nh\u00f4m th\u01b0\u1eddng c\u1ea7n c\u00e1c c\u00f4ng ngh\u1ec7 nh\u1ea5t \u0111\u1ecbnh \u0111\u1ec3 thay th\u1ebf c\u1ea7u dao \u0111\u00fang c\u00e1ch, \u0111i\u1ec1u n\u00e0y \u0111\u1ed3ng ngh\u0129a v\u1edbi chi ph\u00ed cao h\u01a1n trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y. H\u01a1n n\u1eefa, n\u1ebfu b\u1ea3ng \u0111i\u1ec7n \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf nh\u1eefng n\u01a1i kh\u00f3 ti\u1ebfp c\u1eadn nh\u01b0 kh\u00f4ng gian crawl nh\u1ecf ho\u1eb7c h\u1ed9p ngo\u00e0i tr\u1eddi b\u1ecb r\u1ec9 s\u00e9t, \u0111i\u1ec1u n\u00e0y c\u0169ng s\u1ebd l\u00e0m t\u0103ng chi ph\u00ed lao \u0111\u1ed9ng cho d\u1ecbch v\u1ee5. \u0110\u1ec3 \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 x\u00e1c \u0111\u1ecbnh c\u1ea7u dao thay th\u1ebf ch\u00ednh x\u00e1c cho m\u1ed9t b\u1ea3ng \u0111i\u1ec7n v\u00e0 m\u1ea1ch c\u1ee5 th\u1ec3, h\u01b0\u1edbng d\u1eabn c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 <\/span>k\u00edch th\u01b0\u1edbc c\u1ea7u dao b\u1ea1n c\u1ea7n<\/a> bao g\u1ed3m quy tr\u00ecnh l\u1ef1a ch\u1ecdn ampacity v\u00e0 \u0111\u01b0\u1eddng cong ng\u1eaft.<\/span><\/p>\n

\"B\u1ea1n<\/p>\n

B\u1ea1n c\u00f3 th\u1ec3 t\u1ef1 thay th\u1ebf c\u1ea7u dao v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed lao \u0111\u1ed9ng kh\u00f4ng?<\/h2>\n

Thay th\u1ebf m\u1ed9t c\u1ea7u dao th\u00f4ng th\u01b0\u1eddng, ch\u1eb3ng h\u1ea1n nh\u01b0 thi\u1ebft b\u1ecb m\u1ed9t c\u1ef1c b\u00ecnh th\u01b0\u1eddng c\u00f3 d\u00f2ng \u0111i\u1ec7n 15 ho\u1eb7c 20 ampe, trong m\u1ed9t b\u1ea3ng \u0111i\u1ec7n hi\u1ec7n \u0111\u1ea1i l\u00e0 kh\u1ea3 thi \u0111\u1ed1i v\u1edbi ng\u01b0\u1eddi c\u00f3 k\u1ef9 n\u0103ng \u0111\u1ee7. Chi ph\u00ed c\u1ee7a m\u1ed9t c\u1ea7u dao m\u1edbi th\u01b0\u1eddng dao \u0111\u1ed9ng t\u1eeb $5 \u0111\u1ebfn $20, t\u00f9y thu\u1ed9c v\u00e0o lo\u1ea1i c\u1ea7u dao. Vi\u1ec7c thay th\u1ebf kh\u00e1 \u0111\u01a1n gi\u1ea3n, ch\u1ec9 c\u1ea7n t\u1eaft c\u1ea7u dao ch\u00ednh \u0111\u1ec3 ng\u1eaft \u0111i\u1ec7n kh\u1ecfi thanh c\u00e1i, ki\u1ec3m tra r\u1eb1ng thanh c\u00e1i kh\u00f4ng c\u00f3 \u0111i\u1ec7n b\u1eb1ng thi\u1ebft b\u1ecb ki\u1ec3m tra kh\u00f4ng ti\u1ebfp x\u00fac. Th\u00e1o c\u1ea7u dao b\u1ecb h\u1ecfng, ng\u1eaft d\u00e2y t\u1ea3i, g\u1eafn c\u1ea7u dao m\u1edbi v\u00e0 \u0111\u1ea3m b\u1ea3o n\u00f3 \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh ch\u1eafc ch\u1eafn tr\u00ean thanh c\u00e1i l\u00e0 nh\u1eefng b\u01b0\u1edbc c\u1ea7n thi\u1ebft.<\/p>\n

Tuy nhi\u00ean, n\u1ebfu c\u00f4ng t\u1eafc an to\u00e0n ch\u00ednh kh\u00f4ng th\u1ec3 t\u1eaft v\u00ec b\u1ecb k\u1eb9t, kh\u00f3 ti\u1ebfp c\u1eadn (nh\u01b0 trong ph\u00f2ng \u0111i\u1ec7n b\u1ecb kh\u00f3a trong t\u00f2a nh\u00e0 c\u0103n h\u1ed9), ho\u1eb7c n\u1ebfu ch\u00ednh n\u00f3 \u0111ang \u0111\u01b0\u1ee3c thay th\u1ebf, h\u00e3y thu\u00ea m\u1ed9t th\u1ee3 \u0111i\u1ec7n chuy\u00ean nghi\u1ec7p \u0111\u1ec3 l\u00e0m vi\u1ec7c n\u00e0y cho b\u1ea1n. L\u00e0m vi\u1ec7c v\u1edbi thanh c\u00e1i \u0111ang c\u00f3 \u0111i\u1ec7n m\u00e0 kh\u00f4ng c\u00f3 thi\u1ebft b\u1ecb b\u1ea3o h\u1ed9 ch\u1ed1ng tia h\u1ed3 quang ho\u1eb7c d\u1ee5ng c\u1ee5 c\u00e1ch \u0111i\u1ec7n c\u00f3 th\u1ec3 c\u1ef1c k\u1ef3 nguy hi\u1ec3m. T\u1ed5 ch\u1ee9c An to\u00e0n \u0110i\u1ec7n Qu\u1ed1c t\u1ebf (ESFI) cung c\u1ea5p th\u00f4ng tin h\u1eefu \u00edch v\u1ec1 an to\u00e0n trong c\u00f4ng vi\u1ec7c \u0111i\u1ec7n d\u00e2n d\u1ee5ng v\u00e0 cho bi\u1ebft tr\u01b0\u1edbc khi th\u1ef1c hi\u1ec7n b\u1ea5t k\u1ef3 c\u00f4ng vi\u1ec7c n\u00e0o nh\u01b0 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 c\u1ea7u dao, b\u1ea3ng \u0111i\u1ec7n ph\u1ea3i \u0111\u01b0\u1ee3c ng\u1eaft \u0111i\u1ec7n. N\u1ebfu b\u1ea1n c\u1ea3m th\u1ea5y kh\u00f4ng tho\u1ea3i m\u00e1i ho\u1eb7c nghi ng\u1edd v\u1ec1 \u0111i\u1ec1u g\u00ec \u0111\u00f3, chi ph\u00ed b\u1ea1n ph\u1ea3i tr\u1ea3 khi thu\u00ea th\u1ee3 \u0111i\u1ec7n ($150-250 cho m\u1ed9t c\u00f4ng vi\u1ec7c) th\u1ea5p h\u01a1n nhi\u1ec1u so v\u1edbi chi ph\u00ed c\u1ee7a m\u1ed9t c\u00fa \u0111i\u1ec7n gi\u1eadt ho\u1eb7c m\u1ed9t v\u1ee5 ch\u00e1y.<\/p>\n

\u0110\u1ed1i v\u1edbi ch\u1ee7 nh\u00e0 ch\u1ecdn t\u1ef1 thay c\u1ea7u dao, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i s\u1eed d\u1ee5ng c\u1ea7u dao thay th\u1ebf ph\u00f9 h\u1ee3p. Lo\u1ea1i c\u1ea7u dao n\u00ean \u0111\u01b0\u1ee3c ghi r\u00f5 tr\u00ean nh\u00e3n b\u1ea3ng \u0111i\u1ec7n \u2013 v\u00ed d\u1ee5, b\u1ea3ng \u0111i\u1ec7n c\u1ee7a Square D y\u00eau c\u1ea7u s\u1eed d\u1ee5ng c\u1ea7u dao Homeline, trong khi b\u1ea3ng \u0111i\u1ec7n Siemens y\u00eau c\u1ea7u s\u1eed d\u1ee5ng c\u1ea7u dao Siemens Type QP. Vi\u1ec7c s\u1eed d\u1ee5ng lo\u1ea1i c\u1ea7u dao kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi b\u1ea3ng \u0111i\u1ec7n d\u00f9 v\u1eeba v\u1eb7n ho\u00e0n h\u1ea3o l\u00e0 b\u1ea5t h\u1ee3p ph\u00e1p v\u00e0 c\u00f3 th\u1ec3 g\u00e2y ra ch\u00e1y n\u1ed5. HUYU s\u1ea3n xu\u1ea5t nhi\u1ec1u lo\u1ea1i c\u1ea7u dao thay th\u1ebf cho c\u00e1c \u1ee9ng d\u1ee5ng AC v\u00e0 DC kh\u00e1c nhau nh\u01b0 MCB, RCBO v\u00e0 c\u00e1c c\u1ea7u dao chuy\u00ean d\u1ee5ng. \u0110\u1ec3 hi\u1ec3u s\u00e2u h\u01a1n v\u1ec1 ch\u1ee9ng nh\u1eadn m\u00e0 m\u1ed7i c\u1ea7u dao trong b\u1ea3ng \u0111i\u1ec7n ph\u1ea3i c\u00f3, b\u00e0i vi\u1ebft c\u1ee7a ch\u00fang t\u00f4i v\u1ec1 <\/span>c\u00e1c c\u1ea7u dao UL 489<\/a> gi\u1ea3i th\u00edch c\u00e1c y\u00eau c\u1ea7u th\u1eed nghi\u1ec7m v\u00e0 li\u1ec7t k\u00ea.<\/span><\/p>\n

C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n

Chi ph\u00ed th\u1ee3 \u0111i\u1ec7n thay c\u1ea7u dao l\u00e0 bao nhi\u00eau?<\/h3>\n

Thay th\u1ebf m\u1ed9t c\u1ea7u dao m\u1ed9t c\u1ef1c ti\u00eau chu\u1ea9n th\u01b0\u1eddng c\u00f3 chi ph\u00ed t\u1eeb $150 \u0111\u1ebfn $400. Chi ph\u00ed n\u00e0y bao g\u1ed3m ph\u00ed g\u1ecdi d\u1ecbch v\u1ee5, c\u00f4ng lao \u0111\u1ed9ng v\u00e0 chi ph\u00ed c\u1ea7u dao. Thay th\u1ebf c\u1ea7u dao GFCI ho\u1eb7c AFCI s\u1ebd c\u00f3 gi\u00e1 t\u1eeb $200 \u0111\u1ebfn $400. Gi\u00e1 c\u1ea3 thay \u0111\u1ed5i t\u00f9y theo khu v\u1ef1c, kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn b\u1ea3ng \u0111i\u1ec7n v\u00e0 vi\u1ec7c c\u00f4ng vi\u1ec7c \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong gi\u1edd h\u00e0nh ch\u00ednh hay l\u00e0 cu\u1ed9c g\u1ecdi kh\u1ea9n c\u1ea5p.<\/p>\n

T\u00f4i c\u00f3 c\u1ea7n th\u1ee3 \u0111i\u1ec7n \u0111\u1ec3 thay c\u1ea7u dao kh\u00f4ng?<\/h3>\n

Thay m\u1ed9t c\u1ea7u dao th\u00f4ng th\u01b0\u1eddng l\u00e0 kh\u1ea3 thi khi c\u00f4ng t\u1eafc ch\u00ednh \u0111\u00e3 t\u1eaft v\u00e0 thanh c\u00e1i \u0111\u01b0\u1ee3c ki\u1ec3m tra kh\u00f4ng c\u00f3 \u0111i\u1ec7n. N\u1ebfu b\u1ea1n kh\u00f4ng th\u1ec3 t\u1eaft c\u00f4ng t\u1eafc ch\u00ednh, b\u1ea3ng \u0111i\u1ec7n l\u00e0 h\u1ec7 th\u1ed1ng c\u0169 ho\u1eb7c th\u01b0\u01a1ng hi\u1ec7u b\u1ecb thu h\u1ed3i, c\u00f3 h\u01b0 h\u1ecfng \u1edf thanh c\u00e1i, ho\u1eb7c b\u1ea1n c\u1ea3m th\u1ea5y kh\u00f4ng ch\u1eafc ch\u1eafn khi l\u00e0m vi\u1ec7c b\u00ean trong b\u1ea3ng \u0111i\u1ec7n, b\u1ea1n c\u1ea7n m\u1ed9t th\u1ee3 \u0111i\u1ec7n c\u00f3 gi\u1ea5y ph\u00e9p.<\/p>\n

M\u1ed9t th\u1ee3 \u0111i\u1ec7n m\u1ea5t bao l\u00e2u \u0111\u1ec3 thay th\u1ebf m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch?<\/h3>\n

Vi\u1ec7c thay th\u1ebf b\u1ed9 ng\u1eaft m\u1ea1ch \u0111\u01a1n gi\u1ea3n ti\u00eau t\u1ed1n t\u1eeb 15 \u0111\u1ebfn 30 ph\u00fat c\u1ee7a th\u1ee3 \u0111i\u1ec7n, ch\u01b0a t\u00ednh th\u1eddi gian di chuy\u1ec3n. Qu\u00e1 tr\u00ecnh bao g\u1ed3m t\u1eaft m\u1ea1ch, lo\u1ea1i b\u1ecf b\u1ed9 ng\u1eaft c\u0169, l\u1eafp b\u1ed9 ng\u1eaft m\u1edbi v\u00e0 ki\u1ec3m tra. N\u1ebfu ph\u1ea3i thay b\u1ed9 ng\u1eaft ch\u00ednh ho\u1eb7c c\u1ea7n thay \u0111\u1ed5i trong b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n kh\u00f3 ti\u1ebfp c\u1eadn, thao t\u00e1c s\u1ebd m\u1ea5t m\u1ed9t gi\u1edd ho\u1eb7c l\u00e2u h\u01a1n.<\/p>\n

C\u00f3 r\u1ebb h\u01a1n khi s\u1eeda ch\u1eefa hay thay th\u1ebf m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch kh\u00f4ng?<\/h3>\n

B\u1ed9 ng\u1eaft m\u1ea1ch kh\u00f4ng th\u1ec3 s\u1eeda ch\u1eefa \u0111\u01b0\u1ee3c <\/strong>N\u1ebfu m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch b\u1ecb h\u1ecfng (n\u00f3ng l\u00ean, ph\u00e1t ra ti\u1ebfng vo ve, ng\u1eaft li\u00ean t\u1ee5c ho\u1eb7c c\u00f3 d\u1ea5u hi\u1ec7u h\u01b0 h\u1ecfng r\u00f5 r\u00e0ng) th\u00ec b\u1ed9 ng\u1eaft m\u1ea1ch \u0111\u00f3 ph\u1ea3i \u0111\u01b0\u1ee3c thay th\u1ebf. Gi\u00e1 c\u1ee7a m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch thay th\u1ebf n\u1eb1m trong kho\u1ea3ng $5 - $90 trong khi chi ph\u00ed thi\u1ec7t h\u1ea1i do b\u1ed9 ng\u1eaft m\u1ea1ch b\u1ecb l\u1ed7i g\u00e2y ra c\u00f2n \u0111\u1eaft h\u01a1n nhi\u1ec1u.<\/p>\n

T\u00e0i li\u1ec7u tham kh\u1ea3o<\/h2>\n