{"id":4521,"date":"2026-10-10T00:00:00","date_gmt":"2026-10-10T00:00:00","guid":{"rendered":"https:\/\/chac-electric.com\/?p=4521"},"modified":"2026-10-06T08:29:20","modified_gmt":"2026-10-06T08:29:20","slug":"ung-dung-he-thong-bao-ve-dong-dien-du-rong-rccb-va-elcb","status":"publish","type":"post","link":"https:\/\/chac-electric.com\/vi\/blog\/rccb-vs-elcb-residual-current-protection-wiring-applications\/","title":{"rendered":"RCCB vs ELCB: B\u1ea3o v\u1ec7 d\u00f2ng \u0111i\u1ec7n c\u00f2n l\u1ea1i, h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng"},"content":{"rendered":"

Khi m\u1ed9t ng\u01b0\u1eddi x\u00e2y d\u1ef1ng b\u1ea3ng \u0111i\u1ec7n \u1edf Manchester thay th\u1ebf m\u1ed9t thi\u1ebft b\u1ecb ch\u1ed1ng r\u00f2 r\u1ec9 \u0111\u1ea5t c\u0169, thi\u1ebft b\u1ecb m\u1edbi \u0111\u00e3 b\u1eadt ngay sau khi \u0111\u01b0\u1ee3c c\u1ea5p \u0111i\u1ec7n. Ng\u01b0\u1eddi l\u1eafp \u0111\u1eb7t \u0111\u00e3 sao ch\u00e9p \u0111\u01b0\u1eddng d\u1eabn trung t\u00ednh c\u0169 m\u00e0 kh\u00f4ng ki\u1ec3m tra c\u1ea5u tr\u00fac c\u1ee7a thi\u1ebft b\u1ecb. V\u1ea5n \u0111\u1ec1 n\u1eb1m \u1edf s\u1ef1 kh\u00f4ng t\u01b0\u01a1ng th\u00edch v\u1ec1 h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n v\u00e0 thu\u1eadt ng\u1eef, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 b\u1eb1ng ch\u1ee9ng cho th\u1ea5y h\u1ec7 th\u1ed1ng b\u1ea3o v\u1ec7 d\u00f2ng \u0111i\u1ec7n d\u01b0 kh\u00f4ng \u0111\u00e1ng tin c\u1eady.<\/p>\n

T\u00f3m t\u1eaft: M\u1ed9t RCCB<\/strong> Th\u00f4ng th\u01b0\u1eddng, thi\u1ebft b\u1ecb n\u00e0y l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb ng\u1eaft d\u00f2ng \u0111i\u1ec7n c\u00f2n s\u00f3t l\u1ea1i nh\u1eb1m ph\u00e1t hi\u1ec7n s\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng gi\u1eefa d\u00e2y d\u1eabn n\u1ed1i \u0111\u1ea5t v\u00e0 d\u00e2y d\u1eabn ti\u1ebfp \u0111\u1ea5t; \u201cELCB\u201d l\u00e0 m\u1ed9t thu\u1eadt ng\u1eef c\u0169 h\u01a1n ho\u1eb7c bao qu\u00e1t h\u01a1n \u0111\u1ec3 ch\u1ec9 c\u00e1c thi\u1ebft b\u1ecb ho\u1ea1t \u0111\u1ed9ng nh\u1edd \u0111i\u1ec7n \u00e1p ho\u1eb7c d\u00f2ng \u0111i\u1ec7n. Vi\u1ec7c mua s\u1eafm hi\u1ec7n \u0111\u1ea1i n\u00ean t\u1eadp trung v\u00e0o ti\u00eau chu\u1ea9n c\u1ee7a thi\u1ebft b\u1ecb, lo\u1ea1i d\u00f2ng \u0111i\u1ec7n c\u00f2n s\u00f3t l\u1ea1i, d\u00f2ng \u0111i\u1ec7n \u0111\u1ecbnh m\u1ee9c, c\u1ef1c, \u0111\u1ed9 nh\u1ea1y v\u00e0 s\u1ef1 ph\u1ed1i h\u1ee3p v\u1edbi h\u1ec7 th\u1ed1ng b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng. Th\u00f4ng th\u01b0\u1eddng, thi\u1ebft b\u1ecb ng\u1eaft d\u00f2ng \u0111i\u1ec7n c\u00f2n s\u00f3t l\u1ea1i kh\u00f4ng thay th\u1ebf MCB tr\u1eeb khi n\u00f3 l\u00e0 RCBO \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho c\u1ea3 hai ch\u1ee9c n\u0103ng.<\/p>\n

\"Tham
C\u00c1C t\u00e0i li\u1ec7u tham kh\u1ea3o v\u1ec1 \u0111i\u1ec7n c\u1ee7a CHAC \u0111\u1ec3 l\u1eadp k\u1ebf ho\u1ea1ch d\u1ef1 \u00e1n.<\/figcaption><\/figure>\n

RCCB \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m g\u00ec?<\/h2>\n

M\u1ed9t RCCB s\u1ebd m\u1edf m\u1ea1ch khi d\u00f2ng \u0111i\u1ec7n c\u00f2n l\u1ea1i v\u01b0\u1ee3t qu\u00e1 \u0111\u1ed9 nh\u1ea1y c\u1ee7a thi\u1ebft b\u1ecb b\u00e1o \u0111\u1ed9ng. M\u1ed9t c\u1ea3m bi\u1ebfn h\u00ecnh c\u1ea7u s\u1ebd so s\u00e1nh d\u00f2ng \u0111i\u1ec7n trong c\u00e1c d\u00e2y d\u1eabn \u0111\u01b0\u1ee3c gi\u00e1m s\u00e1t; d\u00f2ng \u0111i\u1ec7n tho\u00e1t ra qua ng\u01b0\u1eddi, khung thi\u1ebft b\u1ecb ho\u1eb7c \u0111\u01b0\u1eddng d\u1eabn kh\u00f4ng mong mu\u1ed1n s\u1ebd t\u1ea1o ra s\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng. Thi\u1ebft b\u1ecb n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 gi\u1ea3m nguy c\u01a1 ch\u1eadp \u0111i\u1ec7n v\u00e0 h\u1ecfa ho\u1ea1n, nh\u01b0ng n\u00f3 kh\u00f4ng \u0111\u1ea3m b\u1ea3o an to\u00e0n cho h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n b\u1ecb h\u01b0 h\u1ecfng v\u00e0 th\u01b0\u1eddng kh\u00f4ng c\u00f3 ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 qu\u00e1 t\u1ea3i.<\/p>\n

RCCBs \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi d\u00f2ng \u0111i\u1ec7n \u0111\u1ecbnh m\u1ee9c, s\u1ed1 c\u1ef1c, d\u00f2ng \u0111i\u1ec7n ho\u1ea1t \u0111\u1ed9ng c\u00f2n l\u1ea1i, ki\u1ec3u d\u1ea1ng s\u00f3ng d\u00f2ng \u0111i\u1ec7n c\u00f2n l\u1ea1i, ph\u1ed1i h\u1ee3p ng\u1eafn m\u1ea1ch v\u00e0 lo\u1ea1i l\u1eafp \u0111\u1eb7t. Vi\u1ec7c ch\u1ec9 \u0111\u1ecbnh \u201clo\u1ea1i\u201d r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi c\u00e1c t\u1ea3i c\u00f3 ch\u1ee9a thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed, b\u1ed9 ch\u1ec9nh l\u01b0u, b\u1ed9 \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 bi\u1ebfn \u0111\u1ed5i ho\u1eb7c c\u00e1c th\u00e0nh ph\u1ea7n kh\u00e1c c\u00f3 th\u1ec3 t\u1ea1o ra d\u00f2ng \u0111i\u1ec7n c\u00f2n l\u1ea1i c\u00f3 d\u1ea1ng xung ho\u1eb7c \u1ed5n \u0111\u1ecbnh. B\u1ea3ng d\u1eef li\u1ec7u thi\u1ebft b\u1ecb v\u00e0 c\u00e1c quy t\u1eafc \u0111\u1ecba ph\u01b0\u01a1ng s\u1ebd x\u00e1c \u0111\u1ecbnh l\u1ef1a ch\u1ecdn ch\u00ednh x\u00e1c.<\/p>\n

T\u1ea1i sao thu\u1eadt ng\u1eef ELCB l\u1ea1i g\u00e2y ra s\u1ef1 nh\u1ea7m l\u1eabn?<\/h2>\n

ECLB ban \u0111\u1ea7u \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 ch\u1ec9 c\u00e1c b\u1ed9 ng\u1eaft m\u1ea1ch r\u00f2 r\u1ec9 \u0111\u1ea5t c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng t\u1eeb \u0111i\u1ec7n \u00e1p tr\u00ean d\u00e2y \u0111\u1ea5t c\u1ee7a thi\u1ebft b\u1ecb. Hi\u1ec7n nay, nhi\u1ec1u th\u1ecb tr\u01b0\u1eddng s\u1eed d\u1ee5ng thu\u1eadt ng\u1eef n\u00e0y m\u1ed9t c\u00e1ch h\u1eddi h\u1ee3t \u0111\u1ec3 ch\u1ec9 c\u00e1c thi\u1ebft b\u1ecb d\u01b0 \u0111\u1ed9ng ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng d\u00f2ng \u0111i\u1ec7n. M\u1ed9t RCCB ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng d\u00f2ng \u0111i\u1ec7n v\u00e0 gi\u00e1m s\u00e1t s\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng trong d\u00e2y d\u1eabn b\u1ea3o v\u1ec7; n\u00f3 kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o s\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a \u0111i\u1ec7n \u00e1p tr\u00ean d\u00e2y \u0111i\u1ec7n b\u1ea3o v\u1ec7. Khi thay th\u1ebf ELCB, h\u00e3y x\u00e1c \u0111\u1ecbnh h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n, c\u1ea5u tr\u00fac k\u1ebft n\u1ed1i v\u00e0 c\u00e1c th\u00f4ng tin \u0111\u00e1nh d\u1ea5u tr\u00ean s\u1ea3n ph\u1ea9m tr\u01b0\u1edbc khi ch\u1ecdn m\u1ed9t thi\u1ebft b\u1ecb hi\u1ec7n \u0111\u1ea1i.<\/p>\n

RCD l\u00e0 thu\u1eadt ng\u1eef chung \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u ti\u00eau chu\u1ea9n v\u00e0 quy \u0111\u1ecbnh l\u1eafp \u0111\u1eb7t. M\u1ed9t RCCB l\u00e0 RCD kh\u00f4ng c\u00f3 ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng t\u00edch h\u1ee3p. RCBO k\u1ebft h\u1ee3p ch\u1ee9c n\u0103ng d\u00f2ng d\u01b0 v\u00e0 qu\u00e1 d\u00f2ng. M\u1ed9t RCCB \u0111\u01a1n thu\u1ea7n k\u1ebft h\u1ee3p v\u1edbi MCB c\u00f3 \u0111i\u1ec7n tr\u1edf \u0111\u1ecbnh m\u1ee9c ph\u00f9 h\u1ee3p c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t gi\u1ea3i ph\u00e1p h\u1ee3p l\u00fd, nh\u01b0ng c\u1eb7p thi\u1ebft b\u1ecb n\u00e0y ph\u1ea3i \u0111\u01b0\u1ee3c ph\u1ed1i h\u1ee3p \u0111\u1ec3 t\u00ednh to\u00e1n d\u00f2ng \u0111i\u1ec7n d\u1ef1 ki\u1ebfn v\u00e0 t\u00ednh ch\u1ecdn l\u1ecdc.<\/p>\n\n\n\n\n\n\n\n\n
Thu\u1eadt ng\u1eef v\u1ec1 thi\u1ebft b\u1ecb<\/th>\nCh\u1ee9c n\u0103ng ch\u00ednh<\/th>\nC\u00f3 bao g\u1ed3m hi\u1ec7n t\u01b0\u1ee3ng qu\u00e1 d\u00f2ng kh\u00f4ng?<\/th>\nKi\u1ec3m tra c\u1ee7a ng\u01b0\u1eddi mua<\/th>\n<\/tr>\n<\/thead>\n
RCCB<\/td>\nCh\u1ed1ng d\u00f2ng \u0111i\u1ec7n c\u00f2n l\u1ea1i<\/td>\nTh\u00f4ng th\u01b0\u1eddng kh\u00f4ng c\u00f3<\/td>\nK\u1ebft h\u1ee3p v\u1edbi MCB v\u00e0 x\u00e1c nh\u1eadn s\u1ef1 ph\u1ed1i h\u1ee3p.<\/td>\n<\/tr>\n
RCBO<\/td>\nCh\u1ed1ng d\u00f2ng \u0111i\u1ec7n d\u01b0 v\u00e0 qu\u00e1 d\u00f2ng<\/td>\nV\u00e2ng<\/td>\nKi\u1ec3m tra \u0111i\u1ec7n tr\u1edf c\u1ef1c, \u0111\u01b0\u1eddng cong, \u0111i\u1ec7n tr\u1edf ng\u1eaft v\u00e0 \u0111\u01b0\u1eddng d\u1eabn trung t\u00ednh.<\/td>\n<\/tr>\n
Legacy ELCB<\/td>\nC\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng \u0111i\u1ec7n \u00e1p ho\u1eb7c d\u00f2ng \u0111i\u1ec7n<\/td>\nS\u1ef1 kh\u00e1c nhau<\/td>\nTr\u01b0\u1edbc khi thay th\u1ebf, h\u00e3y x\u00e1c \u0111\u1ecbnh nguy\u00ean l\u00fd ho\u1ea1t \u0111\u1ed9ng c\u1ee7a thi\u1ebft b\u1ecb.<\/td>\n<\/tr>\n
RCD<\/td>\nTh\u1ec3 lo\u1ea1i d\u00f2ng \u0111i\u1ec7n c\u00f2n s\u00f3t l\u1ea1i chung<\/td>\nS\u1ef1 kh\u00e1c nhau<\/td>\nH\u00e3y \u0111\u1ecdc k\u1ef9 th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt v\u00e0 nh\u00e3n m\u00e1c c\u1ee7a s\u1ea3n ph\u1ea9m.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u1ee8ng d\u1ee5ng trong h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n v\u00e0 l\u1eafp \u0111\u1eb7t<\/h2>\n

T\u1ea5t c\u1ea3 c\u00e1c d\u00e2y d\u1eabn \u0111i\u1ec7n \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 th\u00f4ng th\u01b0\u1eddng \u0111\u1ec1u \u0111i qua l\u00f5i c\u1ea3m bi\u1ebfn; m\u1ed9t \u0111\u01b0\u1eddng bypass trung t\u00ednh ho\u1eb7c \u0111\u01b0\u1eddng n\u1ed1i trung t\u00ednh chung c\u00f3 th\u1ec3 t\u1ea1o ra s\u1ef1 gi\u1eadt \u0111i\u1ec7n ngay l\u1eadp t\u1ee9c. D\u00e2y \u0111i\u1ec7n b\u1ea3o v\u1ec7 kh\u00f4ng \u0111i qua l\u00f5i c\u1ea3m bi\u1ebfn. H\u00e3y tu\u00e2n th\u1ee7 c\u00e1c ch\u1ec9 d\u1eabn v\u1ec1 d\u00f2ng \u0111i\u1ec7n v\u00e0 t\u1ea3i c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t, y\u00eau c\u1ea7u m\u00f4-men xo\u1eafn v\u00e0 h\u01b0\u1edbng d\u1eabn v\u1ec1 n\u00fat th\u1eed nghi\u1ec7m. Kh\u00f4ng bao gi\u1edd k\u1ebft n\u1ed1i trung t\u00ednh v\u00e0 d\u00e2y \u0111i\u1ec7n c\u00f9ng m\u1ed9t h\u01b0\u1edbng d\u01b0\u1edbi \u0111i\u1ec3m n\u1ed1i \u0111\u01b0\u1ee3c ph\u00e9p.<\/p>\n

\"C\u1ea3nh
C\u00c1C t\u00e0i li\u1ec7u tham kh\u1ea3o v\u1ec1 \u0111i\u1ec7n c\u1ee7a CHAC \u0111\u1ec3 l\u1eadp k\u1ebf ho\u1ea1ch d\u1ef1 \u00e1n.<\/figcaption><\/figure>\n

\u0110\u1ed1i v\u1edbi b\u1ea3ng ph\u00e2n ph\u1ed1i trong nh\u00e0, m\u1ed9t danh s\u00e1ch Gi\u1ea3i ph\u00e1p RCCB<\/strong><\/a> C\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 b\u1eb1ng b\u1ed9 ng\u1eaft d\u00f2ng qu\u00e1 d\u00f2ng ri\u00eang bi\u1ec7t. Trong tr\u01b0\u1eddng h\u1ee3p c\u1ea7n thi\u1ebft l\u1eadp b\u1ea3o v\u1ec7 k\u1ebft h\u1ee3p, vui l\u00f2ng xem x\u00e9t PXB6L-63 RCBO<\/strong><\/a> Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt. A CQB2-63 MCB<\/a> C\u00f3 th\u1ec3 l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng ph\u1ed1i h\u1ee3p khi \u0111i\u1ec7n \u00e1p, \u0111\u01b0\u1eddng cong v\u00e0 c\u1ea5p \u0111\u1ed9 ng\u1eaft d\u00f2ng t\u01b0\u01a1ng \u1ee9ng v\u1edbi h\u1ec7 th\u1ed1ng l\u1eafp \u0111\u1eb7t.<\/p>\n

Ng\u01b0\u1eddi mua n\u00ean so s\u00e1nh c\u00e1c l\u1ef1a ch\u1ecdn RCCB v\u00e0 RCBO nh\u01b0 th\u1ebf n\u00e0o?<\/h2>\n\n\n\n\n\n\n\n\n
Khu v\u1ef1c quy\u1ebft \u0111\u1ecbnh<\/th>\nRCCB c\u1ed9ng v\u1edbi MCB<\/th>\nRCBO<\/th>\nT\u00e1c \u0111\u1ed9ng c\u1ee7a vi\u1ec7c l\u1ef1a ch\u1ecdn<\/th>\n<\/tr>\n<\/thead>\n
Kh\u00f4ng gian b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n<\/td>\nTh\u00f4ng th\u01b0\u1eddng l\u00e0 v\u1ecb tr\u00ed c\u1ee7a c\u00e1c module ri\u00eang bi\u1ec7t<\/td>\nCh\u1ee9c n\u0103ng k\u1ebft h\u1ee3p c\u00f3 th\u1ec3 \u0111\u01a1n gi\u1ea3n h\u00f3a c\u00e1c m\u1ea1ch \u0111i\u1ec7n<\/td>\nKi\u1ec3m tra \u0111\u1ed9 r\u1ed9ng v\u00e0 b\u1ed1 tr\u00ed trung l\u1eadp.<\/td>\n<\/tr>\n
C\u1ea5u tr\u00fac ph\u00e2n t\u00e1ch l\u1ed7i<\/td>\nM\u1ed9t thi\u1ebft b\u1ecb RCCB c\u00f3 th\u1ec3 g\u00e2y ra s\u1ef1 gi\u1eadt \u0111i\u1ec7n cho nhi\u1ec1u m\u1ea1ch \u0111i\u1ec7n.<\/td>\nC\u00f3 th\u1ec3 c\u00f4 l\u1eadp m\u1ed9t nh\u00e1nh ri\u00eang l\u1ebb khi \u00e1p d\u1ee5ng \u0111\u00fang c\u00e1ch<\/td>\nSo s\u00e1nh v\u1ec1 t\u00ednh li\u00ean t\u1ee5c v\u00e0 t\u00e1c \u0111\u1ed9ng c\u1ee7a chuy\u1ebfn \u0111i g\u00e2y phi\u1ec1n to\u00e1i.<\/td>\n<\/tr>\n
B\u1ea3o tr\u00ec<\/td>\nHai thi\u1ebft b\u1ecb v\u00e0 h\u1ed3 s\u01a1 ph\u1ed1i h\u1ee3p<\/td>\nM\u1ed9t thi\u1ebft b\u1ecb c\u00f3 c\u00e1c d\u1ea5u hi\u1ec7u k\u1ebft h\u1ee3p<\/td>\nH\u00e3y gi\u1eef cho c\u00e1c th\u1ee7 t\u1ee5c v\u1ec1 pin d\u1ef1 ph\u00f2ng v\u00e0 n\u00fat th\u1eed nghi\u1ec7m lu\u00f4n r\u00f5 r\u00e0ng.<\/td>\n<\/tr>\n
Nguy\u00ean nh\u00e2n chi ph\u00ed<\/td>\nC\u1eb7p thi\u1ebft b\u1ecb, busbar, nh\u00e2n c\u00f4ng, t\u00ednh ch\u1ecdn l\u1ecdc<\/td>\n\u0110\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt v\u00e0 s\u1ed1 l\u01b0\u1ee3ng c\u1ee7a \u0111\u01a1n v\u1ecb<\/td>\nH\u00e3y so s\u00e1nh t\u1ed5ng chi ph\u00ed l\u1eafp \u0111\u1eb7t, kh\u00f4ng ch\u1ec9 l\u00e0 gi\u00e1 m\u1ed7i \u0111\u01a1n v\u1ecb.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

C\u00e1c ti\u00eau chu\u1ea9n v\u00e0 ki\u1ec3m tra th\u1eed nghi\u1ec7m n\u00e0o ng\u0103n ng\u1eeba \u0111\u01b0\u1ee3c nh\u1eefng sai l\u1ea7m khi l\u1ef1a ch\u1ecdn RCCB?<\/h2>\n

IEC 61008-1 \u00e1p d\u1ee5ng cho c\u00e1c thi\u1ebft b\u1ecb RCCB kh\u00f4ng c\u00f3 t\u00ednh n\u0103ng b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng t\u00edch h\u1ee3p, trong khi IEC 61009-1 \u00e1p d\u1ee5ng cho c\u00e1c thi\u1ebft b\u1ecb RCBO. C\u00e1c quy t\u1eafc l\u1eafp \u0111\u1eb7t IEC 60364 v\u00e0 b\u1ed9 quy chu\u1ea9n h\u1ec7 th\u1ed1ng \u0111i\u1ec7n \u0111\u1ecba ph\u01b0\u01a1ng quy \u0111\u1ecbnh n\u01a1i c\u1ea7n thi\u1ebft ph\u1ea3i c\u00f3 t\u00ednh n\u0103ng b\u1ea3o v\u1ec7 d\u00f2ng d\u01b0. C\u00e1c ti\u00eau chu\u1ea9n n\u00e0y quy \u0111\u1ecbnh h\u00e0nh vi v\u00e0 c\u00e1c b\u00e0i ki\u1ec3m tra c\u1ee7a thi\u1ebft b\u1ecb; ch\u00fang kh\u00f4ng ch\u1ee9ng nh\u1eadn to\u00e0n b\u1ed9 b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t m\u00e0 kh\u00f4ng tu\u00e2n th\u1ee7 theo h\u01b0\u1edbng d\u1eabn.<\/p>\n

Nh\u1eefng sai l\u1ea7m ph\u1ed5 bi\u1ebfn bao g\u1ed3m vi\u1ec7c ch\u1ecdn thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 ki\u1ec3u AC cho m\u1ed9t t\u1ea3i c\u00f3 y\u00eau c\u1ea7u lo\u1ea1i d\u1ea1ng s\u00f3ng c\u00f2n l\u1ea1i kh\u00e1c, \u0111\u1ecbnh tuy\u1ebfn thi\u1ebft b\u1ecb ph\u00e2n ph\u1ed1i \u0111i\u1ec7n kh\u00f4ng t\u1ea3i b\u00ean ngo\u00e0i c\u1ea3m bi\u1ebfn, b\u1ecf qua thi\u1ebft b\u1ecb ch\u1ed1ng qu\u00e1 d\u00f2ng \u0111i\u1ec7n, v\u00e0 cho r\u1eb1ng n\u00fat th\u1eed nghi\u1ec7m c\u00f3 th\u1ec3 ki\u1ec3m tra m\u1ecdi tr\u01b0\u1eddng h\u1ee3p l\u1ed7i. Th\u1ef1c hi\u1ec7n th\u1eed nghi\u1ec7m theo c\u00e1c kho\u1ea3ng th\u1eddi gian quy \u0111\u1ecbnh b\u1edfi nh\u00e0 s\u1ea3n xu\u1ea5t ho\u1eb7c theo quy \u0111\u1ecbnh \u0111\u1ecba ph\u01b0\u01a1ng, v\u00e0 \u0111i\u1ec1u tra m\u1ecdi s\u1ef1 c\u1ed1 b\u1ea5t th\u01b0\u1eddng x\u1ea3y ra thay v\u00ec l\u1eb7p \u0111i l\u1eb7p l\u1ea1i vi\u1ec7c reset.<\/p>\n

C\u00e1c \u0111\u1ed9i mua s\u1eafm n\u00ean y\u00eau c\u1ea7u th\u00f4ng tin v\u1ec1 ti\u00eau chu\u1ea9n s\u1ea3n ph\u1ea9m, d\u00f2ng \u0111i\u1ec7n r\u00f2 r\u1ec9 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1, \u0111i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m, ph\u1ea1m vi \u0111\u1ea7u n\u1ed1i, s\u01a1 \u0111\u1ed3 d\u00e2y \u0111i\u1ec7n, th\u00f4ng tin ph\u1ed1i h\u1ee3p ng\u1eafn m\u1ea1ch v\u00e0 gi\u1edbi h\u1ea1n m\u00f4i tr\u01b0\u1eddng. Vi\u1ec7c so s\u00e1nh trung th\u1ef1c n\u00ean d\u1ef1a tr\u00ean d\u1eef li\u1ec7u \u1ee9ng d\u1ee5ng \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c minh v\u00e0 l\u1ecbch tr\u00ecnh l\u1eafp \u0111\u1eb7t, ch\u1ee9 kh\u00f4ng n\u00ean d\u1ef1a tr\u00ean nh\u00e3n hi\u1ec7u qu\u1ea3ng c\u00e1o.<\/p>\n

C\u00e1c c\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n

RCCB \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m g\u00ec?<\/h3>\n

RCCB ph\u00e1t hi\u1ec7n d\u00f2ng \u0111i\u1ec7n d\u01b0 v\u00e0 ng\u1eaft m\u1ea1ch khi s\u1ef1 m\u1ea5t c\u00e2n b\u1eb1ng \u0111\u1ea1t \u0111\u1ebfn ng\u01b0\u1ee1ng \u0111\u1ecbnh m\u1ee9c. N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 b\u1ea3o v\u1ec7 ch\u1ed1ng s\u1ed1c v\u00e0 r\u00f2 r\u1ec9 khi c\u1ea7n thi\u1ebft, nh\u01b0ng th\u00f4ng th\u01b0\u1eddng n\u00f3 kh\u00f4ng b\u1ea3o v\u1ec7 ch\u1ed1ng qu\u00e1 t\u1ea3i ho\u1eb7c ng\u1eafn m\u1ea1ch. N\u00ean k\u1ebft h\u1ee3p v\u1edbi thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 d\u00f2ng \u0111i\u1ec7n qu\u00e1 d\u00f2ng ph\u00f9 h\u1ee3p.<\/p>\n

Lo\u1ea1i RCCB hay ELCB n\u00e0o t\u1ed1t h\u01a1n?<\/h3>\n

\u0110\u1ed1i v\u1edbi vi\u1ec7c l\u1eafp \u0111\u1eb7t m\u1edbi, h\u00e3y ch\u1ecdn thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi m\u00e3 ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng thay v\u00ec ch\u1ec9 d\u1ef1a v\u00e0o nh\u00e3n hi\u1ec7u. C\u00f4ng ngh\u1ec7 RCCB ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng d\u00f2ng \u0111i\u1ec7n hi\u1ec7n \u0111\u1ea1i th\u01b0\u1eddng d\u1ec5 d\u00e0ng \u0111\u1ecbnh r\u00f5 h\u01a1n so v\u1edbi c\u00e1c thi\u1ebft b\u1ecb ELCB ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng \u0111i\u1ec7n \u00e1p c\u0169, nh\u01b0ng vi\u1ec7c \u1ee9ng d\u1ee5ng v\u00e0 h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n ch\u00ednh x\u00e1c s\u1ebd quy\u1ebft \u0111\u1ecbnh t\u00ednh ph\u00f9 h\u1ee3p.<\/p>\n

S\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa RCD v\u00e0 RCCB l\u00e0 g\u00ec?<\/h3>\n

RCD l\u00e0 m\u1ed9t danh m\u1ee5c chung cho c\u00e1c thi\u1ebft b\u1ecb d\u00f2ng d\u01b0. RCCB l\u00e0 m\u1ed9t lo\u1ea1i RCD c\u1ee5 th\u1ec3 kh\u00f4ng c\u00f3 ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng t\u00edch h\u1ee3p. RCBO l\u00e0 m\u1ed9t RCD c\u00f3 ch\u1ee9c n\u0103ng b\u1ea3o v\u1ec7 qu\u00e1 d\u00f2ng.<\/p>\n

RCCB v\u00e0 MCB l\u00e0 g\u00ec?<\/h3>\n

M\u1ed9t thi\u1ebft b\u1ecb RCCB \u0111\u00e1p \u1ee9ng t\u00ecnh tr\u1ea1ng m\u1ea5t c\u00e2n b\u1eb1ng d\u00f2ng \u0111i\u1ec7n, trong khi m\u1ed9t thi\u1ebft b\u1ecb MCB \u0111\u00e1p \u1ee9ng t\u00ecnh tr\u1ea1ng qu\u00e1 t\u1ea3i v\u00e0 ng\u1eafn m\u1ea1ch. Ch\u00fang gi\u1ea3i quy\u1ebft c\u00e1c nguy hi\u1ec3m kh\u00e1c nhau v\u00e0 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f9ng nhau. M\u1ed9t thi\u1ebft b\u1ecb c\u00f3 nh\u00e3n RCBO k\u1ebft h\u1ee3p c\u1ea3 hai ch\u1ee9c n\u0103ng khi c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a n\u00f3 ph\u00f9 h\u1ee3p.<\/p>\n

RCCB \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u00e0m g\u00ec?<\/h3>\n

N\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ng\u1eaft k\u1ebft n\u1ed1i m\u1ea1ch khi d\u00f2ng r\u00f2 r\u1ec9 ho\u1eb7c d\u00f2ng d\u01b0 v\u01b0\u1ee3t qu\u00e1 c\u00e0i \u0111\u1eb7t, gi\u00fap gi\u1ea3m nguy c\u01a1 \u0111i\u1ec7n gi\u1eadt v\u00e0 h\u1ecfa ho\u1ea1n. Tr\u01b0\u1edbc khi ch\u1ecdn m\u1ed9t thi\u1ebft b\u1ecb, h\u00e3y x\u00e1c nh\u1eadn \u0111\u1ed9 nh\u1ea1y c\u1ea3m, lo\u1ea1i d\u00f2ng r\u00f2 r\u1ec9, s\u1ed1 c\u1ef1c v\u00e0 y\u00eau c\u1ea7u l\u1eafp \u0111\u1eb7t t\u1ea1i \u0111\u1ecba ph\u01b0\u01a1ng.<\/p>\n

RCCB ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/h3>\n

Thi\u1ebft b\u1ecb so s\u00e1nh d\u00f2ng \u0111i\u1ec7n trong c\u00e1c d\u00e2y d\u1eabn \u0111ang \u0111\u01b0\u1ee3c gi\u00e1m s\u00e1t. S\u1ef1 kh\u00e1c bi\u1ec7t cho th\u1ea5y m\u1ed9t ph\u1ea7n d\u00f2ng \u0111i\u1ec7n \u0111ang \u0111i ng\u01b0\u1ee3c l\u1ea1i h\u01b0\u1edbng d\u1ef1 \u0111\u1ecbnh, do \u0111\u00f3 c\u01a1 ch\u1ebf ng\u1eaft m\u1ea1ch s\u1ebd m\u1edf m\u1ea1ch. Vi\u1ec7c \u0111\u1ecbnh tuy\u1ebfn trung t\u00ednh \u0111\u00fang c\u00e1ch v\u00e0 ki\u1ec3m tra \u0111\u1ecbnh k\u1ef3 l\u00e0 r\u1ea5t c\u1ea7n thi\u1ebft.<\/p>\n

C\u00e1c ngu\u1ed3n ch\u00ednh th\u1ee9c n\u00e0o n\u00ean \u0111\u01b0\u1ee3c ng\u01b0\u1eddi mua x\u00e1c minh?<\/h2>\n
    \n
  1. IEC 61008-1<\/a><\/li>\n
  2. IEC 61009-1<\/a><\/li>\n
  3. NFPA 70 NEC<\/a><\/li>\n
  4. H\u01b0\u1edbng d\u1eabn an to\u00e0n \u0111i\u1ec7n c\u1ee7a C\u01a1 quan An to\u00e0n S\u1ee9c kh\u1ecfe C\u00f4ng nghi\u1ec7p V\u01b0\u01a1ng qu\u1ed1c Anh<\/a><\/li>\n<\/ol>\n

    Vi\u1ec7c l\u1ef1a ch\u1ecdn RCCB t\u1ed1t b\u1eaft \u0111\u1ea7u t\u1eeb \u0111\u01b0\u1eddng d\u1eabn hi\u1ec7n t\u1ea1i v\u00e0 k\u1ebft th\u00fac v\u1edbi m\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m v\u00e0 ghi ch\u00e9p \u0111\u1ea7y \u0111\u1ee7. \u0110\u1ecdc \u0111\u00e1nh gi\u00e1 c\u1ee7a CHAC Electric D\u1ea3i b\u1ea3o v\u1ec7 d\u00f2ng d\u01b0<\/a> H\u00e3y tu\u00e2n th\u1ee7 s\u01a1 \u0111\u1ed3 d\u00e2y \u0111i\u1ec7n c\u1ee7a b\u1ea1n v\u00e0 li\u00ean h\u1ec7 v\u1edbi \u0111\u1ed9i ng\u0169 k\u1ef9 thu\u1eadt \u0111\u1ec3 nh\u1eadn \u0111\u01b0\u1ee3c d\u1eef li\u1ec7u c\u1ea7n thi\u1ebft \u0111\u1ec3 so s\u00e1nh c\u00e1c nh\u00e0 cung c\u1ea5p m\u1ed9t c\u00e1ch c\u00f3 tr\u00e1ch nhi\u1ec7m.<\/p>","protected":false},"excerpt":{"rendered":"

    So s\u00e1nh thu\u1eadt ng\u1eef RCCB v\u00e0 ELCB, ho\u1ea1t \u0111\u1ed9ng d\u00f2ng \u0111i\u1ec7n c\u00f2n l\u1ea1i, h\u1ec7 th\u1ed1ng d\u00e2y \u0111i\u1ec7n, ph\u1ea1m vi \u00e1p d\u1ee5ng c\u1ee7a quy chu\u1ea9n, nh\u1eefng sai l\u1ea7m khi l\u1ef1a ch\u1ecdn v\u00e0 c\u00e1c \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf cho ng\u01b0\u1eddi mua.<\/p>","protected":false},"author":1,"featured_media":4518,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[119,167,234,235],"class_list":["post-4521","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-rccb","tag-electrical-protection","tag-residual-current-circuit-breaker","tag-elcb"],"blocksy_meta":{"styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":8}},"acf":[],"_links":{"self":[{"href":"https:\/\/chac-electric.com\/vi\/wp-json\/wp\/v2\/posts\/4521","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/chac-electric.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chac-electric.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chac-electric.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/chac-electric.com\/vi\/wp-json\/wp\/v2\/comments?post=4521"}],"version-history":[{"count":1,"href":"https:\/\/chac-electric.com\/vi\/wp-json\/wp\/v2\/posts\/4521\/revisions"}],"predecessor-version":[{"id":4530,"href":"https:\/\/chac-electric.com\/vi\/wp-json\/wp\/v2\/posts\/4521\/revisions\/4530"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/chac-electric.com\/vi\/wp-json\/wp\/v2\/media\/4518"}],"wp:attachment":[{"href":"https:\/\/chac-electric.com\/vi\/wp-json\/wp\/v2\/media?parent=4521"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chac-electric.com\/vi\/wp-json\/wp\/v2\/categories?post=4521"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chac-electric.com\/vi\/wp-json\/wp\/v2\/tags?post=4521"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}