{"id":4780,"date":"2026-11-13T16:40:20","date_gmt":"2026-11-13T16:40:20","guid":{"rendered":"https:\/\/huyuglobal.com\/?p=4780"},"modified":"2026-11-13T16:40:22","modified_gmt":"2026-11-13T16:40:22","slug":"din-rail-size-for-mcb","status":"publish","type":"post","link":"https:\/\/huyuglobal.com\/vi\/blog\/din-rail-size-for-mcb\/","title":{"rendered":"K\u00edch th\u01b0\u1edbc Ray DIN cho MCB"},"content":{"rendered":"

DIN l\u00e0 vi\u1ebft t\u1eaft c\u1ee7a Deutsche Industrie Norm. DIN 46277 \u0111\u1ecbnh ngh\u0129a H\u1ed3 s\u01a1 c\u1ee7a Thanh ray Top Hat l\u00e0 \u0111\u1ed1i x\u1ee9ng \u0111\u1ec3 c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c g\u1eafn d\u1ec5 d\u00e0ng m\u00e0 kh\u00f4ng ph\u1ea3i lo l\u1eafng v\u1ec1 kho\u1ea3ng c\u00e1ch t\u1eeb m\u1ed7i c\u1ea1nh \u0111\u1ec3 c\u0103n ch\u1ec9nh thi\u1ebft b\u1ecb. Ti\u00eau chu\u1ea9n g\u1ed1c \u0111\u00e3 \u0111\u01b0\u1ee3c H\u00f2a h\u1ee3p th\u00e0nh EN 50022 r\u1ed3i IEC 60715 li\u00ean quan \u0111\u1ebfn Ti\u00eau chu\u1ea9n Tham chi\u1ebfu.<\/p>\n

The \u2192 C\u00e1i 35 mm<\/strong> K\u00edch th\u01b0\u1edbc thanh ray tr\u1edf th\u00e0nh k\u00edch th\u01b0\u1edbc thanh ray \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng v\u00e0 ph\u1ed5 bi\u1ebfn nh\u1ea5t v\u00ec chi\u1ec1u r\u1ed9ng thanh ray 35 mm cung c\u1ea5p m\u1ed9t k\u1eb9p \u1ed5n \u0111\u1ecbnh \u0111\u1ec3 c\u1ed1 \u0111\u1ecbnh k\u1ebft n\u1ed1i Tompson v\u00e0 n\u00f3 cho ph\u00e9p t\u00ednh \u0111\u1ed3ng nh\u1ea5t tr\u00ean c\u00e1c d\u00f2ng c\u1ea7u dao trong khi gi\u1eef ch\u00fang nh\u1ecf g\u1ecdn \u2013 chi\u1ec1u r\u1ed9ng th\u1ef1c t\u1ebf c\u1ee7a m\u1ed9t b\u1ea3ng 12 v\u1ecb tr\u00ed v\u1edbi thanh ray 35 mm kho\u1ea3ng 210 mm, \u0111\u1ecbnh d\u1ea1ng n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi m\u1ed9t v\u1ecf h\u1ed9p c\u00f3 chi\u1ec1u r\u1ed9ng kho\u1ea3ng 250 mm, b\u1ea5t k\u1ef3 k\u00edch th\u01b0\u1edbc r\u1ed9ng h\u01a1n s\u1ebd l\u00e3ng ph\u00ed kh\u00f4ng gian v\u1ecf h\u1ed9p qu\u00fd gi\u00e1 trong khi b\u1ea5t k\u1ef3 k\u00edch th\u01b0\u1edbc h\u1eb9p h\u01a1n s\u1ebd kh\u00f4ng gi\u1eef ch\u1eafc thi\u1ebft b\u1ecb \u0111\u1ecbnh m\u1ee9c 63 A khi m\u00f4-men xo\u1eafn \u0111\u1ea7u cu\u1ed1i \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng.<\/p>\n

C\u00e1c chi\u1ec1u r\u1ed9ng thanh ray kh\u00e1c c\u00f3 th\u1ec3 t\u00ecm th\u1ea5y l\u00e0 15 mm, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u1ecbch s\u1eed cho c\u00e1c kh\u1ed1i \u0111\u1ea7u cu\u1ed1i mini m\u00e0 v\u1eabn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ng\u00e0y nay. Thanh ray 75 mm d\u00e0nh cho thi\u1ebft b\u1ecb c\u00f4ng nghi\u1ec7p n\u1eb7ng v\u00e0 c\u00e1c c\u1ee5m \u0111\u1ea7u cu\u1ed1i l\u1edbn. C\u1ea7u dao v\u00e0 c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c kh\u00f4ng li\u00ean quan \u0111\u1ebfn nhau theo b\u1ea5t k\u1ef3 c\u00e1ch n\u00e0o, nh\u01b0ng c\u1ea3 hai m\u1ee5c \u0111\u1ec1u \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o c\u00f9ng m\u1ed9t danh m\u1ee5c, \u0111i\u1ec1u n\u00e0y g\u00e2y nh\u1ea7m l\u1eabn.<\/p>\n

Tr\u1ea3 l\u1eddi nhanh:<\/strong> M\u1ed7i MCB g\u1eafn v\u00e0o thanh ray r\u1ed9ng 35 mm nh\u01b0 \u0111\u01b0\u1ee3c n\u00eau trong IEC\/EN 60715. H\u1ed3 s\u01a1 n\u00e0y c\u00f3 hai chi\u1ec1u cao kh\u00e1c nhau \u2013 7.5 mm v\u00e0 15 mm. Phi\u00ean b\u1ea3n nh\u1ecf h\u01a1n (7.5 mm) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho MCB, C\u1ea7u dao d\u00f2ng r\u00f2 (RCBO), v\u00e0 kh\u1edfi \u0111\u1ed9ng t\u1eeb m\u00f4-\u0111un. Phi\u00ean b\u1ea3n l\u1edbn h\u01a1n (15 mm) cung c\u1ea5p \u0111\u1ed9 b\u1ec1n t\u0103ng th\u00eam cho c\u00e1c kh\u1ed1i \u0111\u1ea7u cu\u1ed1i l\u1edbn h\u01a1n v\u00e0 thi\u1ebft b\u1ecb c\u00f4ng nghi\u1ec7p. Chi\u1ec1u r\u1ed9ng m\u1ed9t c\u1ef1c c\u1ee7a MCB l\u00e0 17.5 mm, v\u00ec v\u1eady m\u1ed9t b\u1ea3ng ch\u1ee9a m\u01b0\u1eddi hai MCB c\u1ea7n 210 mm thanh ray \u0111\u1ec3 g\u1eafn ch\u00fang, \u0111i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 thanh ray s\u1eed d\u1ee5ng c\u1ea7n l\u1edbn h\u01a1n t\u1eeb 10 \u0111\u1ebfn 15 ph\u1ea7n tr\u0103m \u0111\u1ec3 ch\u1ee9a vi\u1ec7c g\u1eafn MCB m\u00e0 kh\u00f4ng c\u1ea3n tr\u1edf d\u00e2y k\u1ebft n\u1ed1i \u0111\u00fang c\u00e1ch.<\/p><\/blockquote>\n

Nh\u1eefng g\u00ec IEC 60715 Quy \u0111\u1ecbnh<\/h2>\n

IEC 60715<\/strong> quy \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc, \u0111\u1ed9 d\u00e0y v\u00e0 dung sai c\u1ee7a m\u1ed9t thanh ray. Nh\u1edd ti\u00eau chu\u1ea9n n\u00e0y, m\u1ed9t thanh ray do m\u1ed9t nh\u00e0 s\u1ea3n xu\u1ea5t l\u00e0m ra t\u01b0\u01a1ng th\u00edch v\u1edbi c\u00e1c thi\u1ebft b\u1ecb do nh\u00e0 s\u1ea3n xu\u1ea5t kh\u00e1c l\u00e0m. C\u00e1c k\u00edch th\u01b0\u1edbc duy nh\u1ea5t m\u00e0 ng\u01b0\u1eddi l\u1eafp \u0111\u1eb7t quan t\u00e2m khi s\u1eed d\u1ee5ng thanh ray l\u00e0 chi\u1ec1u r\u1ed9ng thanh ray (35 mm), chi\u1ec1u cao h\u1ed3 s\u01a1 (7.5 mm ho\u1eb7c 15 mm) v\u00e0 \u0111\u1ed9 d\u00e0y (\u0111\u1ed1i v\u1edbi h\u1ed3 s\u01a1 7.5 mm th\u01b0\u1eddng d\u00e0y 1 mm l\u00e0m b\u1eb1ng th\u00e9p c\u00e1n ngu\u1ed9i).<\/p>\n

K\u1eb9p n\u1eb1m \u1edf ph\u00eda sau c\u1ee7a thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf c\u00f3 l\u00f2 xo v\u00e0 s\u1ebd t\u1ef1 c\u1ed1 \u0111\u1ecbnh d\u01b0\u1edbi m\u00e9p tr\u01b0\u1edbc c\u1ee7a thanh ray r\u1ed3i sau \u0111\u00f3 b\u1eadt l\u00ean tr\u00ean m\u00e9p sau c\u1ee7a thanh ray. Kho\u1ea3ng c\u00e1ch di chuy\u1ec3n c\u1ee7a k\u1eb9p r\u1ea5t quan tr\u1ecdng, v\u00ec ch\u1ec9 nh\u1eefng thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c l\u00e0m \u0111\u1ec3 s\u1eed d\u1ee5ng v\u1edbi chi\u1ec1u cao m\u1eb7t c\u1eaft 7,5 mm m\u1edbi c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c k\u1eb9p v\u00e0o thanh ray c\u00f3 chi\u1ec1u cao m\u1eb7t c\u1eaft 15 mm mi\u1ec5n l\u00e0 ch\u00fang c\u00f3 \u0111\u1ee7 kho\u1ea3ng c\u00e1ch di chuy\u1ec3n. Ng\u01b0\u1ee3c l\u1ea1i, m\u1ed9t thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 s\u1eed d\u1ee5ng v\u1edbi m\u1eb7t c\u1eaft 15 mm s\u1ebd kh\u00f4ng v\u1eeba v\u1eb7n tr\u00ean thanh ray m\u1eb7t c\u1eaft 7,5 mm. Vi\u1ec7c tr\u1ed9n l\u1eabn kh\u00f4ng \u0111\u00fang hai lo\u1ea1i thi\u1ebft b\u1ecb n\u00e0y trong c\u00f9ng m\u1ed9t v\u1ecf l\u00e0 m\u1ed9t nguy\u00ean nh\u00e2n ph\u1ed5 bi\u1ebfn khi\u1ebfn c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed xu\u1ea5t hi\u1ec7n \u1edf m\u1ed9t g\u00f3c so v\u1edbi v\u1ecb tr\u00ed d\u1ef1 \u0111\u1ecbnh c\u1ee7a ch\u00fang.<\/p>\n

Vi\u1ec7c chu\u1ea9n h\u00f3a ph\u1ea7n b\u00ean thi\u1ebft b\u1ecb c\u1ee7a giao di\u1ec7n c\u0169ng t\u1ed3n t\u1ea1i v\u1edbi DIN 43880. Ti\u00eau chu\u1ea9n n\u00e0y quy \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc t\u1ed5ng th\u1ec3 c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb \u0111i\u1ec7n t\u1eed m\u00f4-\u0111un. M\u1ed9t thi\u1ebft b\u1ecb m\u00f4-\u0111un \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a l\u00e0 c\u00f3 chi\u1ec1u cao 80 mm cho m\u1ed9t m\u00f4-\u0111un ho\u00e0n ch\u1ec9nh. M\u1ed9t thi\u1ebft b\u1ecb m\u00f4-\u0111un c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a l\u00e0 m\u1ed9t n\u1eeda m\u00f4-\u0111un, n\u00f3i c\u00e1ch kh\u00e1c l\u00e0 45 mm. L\u01b0\u1edbi chi\u1ec1u r\u1ed9ng c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb m\u00f4-\u0111un, nh\u01b0 \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh trong ti\u00eau chu\u1ea9n DIN 43880, c\u0169ng \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a l\u00e0 17,5 mm. Do \u0111\u00f3, m\u1ed9t b\u1ed9 ng\u1eaft m\u1ea1ch nh\u1ecf EXB3 c\u00f3 d\u00f2ng \u0111\u1ecbnh m\u1ee9c t\u1eeb 6 \u0111\u1ebfn 63 A chi\u1ebfm ch\u00ednh x\u00e1c m\u1ed9t m\u00f4-\u0111un, v\u00e0 v\u00ec DIN 43880 cung c\u1ea5p s\u1ef1 chu\u1ea9n h\u00f3a cho c\u00e1c thi\u1ebft b\u1ecb g\u1eafn tr\u00ean thanh ray, n\u00f3 c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c g\u1eafn v\u00e0o c\u00f9ng m\u1ed9t thanh ray v\u1edbi m\u1ed9t kh\u1ed1i \u0111\u1ea7u cu\u1ed1i ho\u1eb7c r\u01a1 le h\u1eb9n gi\u1edd do nh\u00e0 s\u1ea3n xu\u1ea5t kh\u00e1c s\u1ea3n xu\u1ea5t.<\/p>\n

7,5 mm so v\u1edbi 15 mm: B\u1ea1n n\u00ean ch\u1ecdn m\u1eb7t c\u1eaft n\u00e0o?<\/h2>\n

M\u1eb7t c\u1eaft 7,5 mm \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e0m ti\u00eau chu\u1ea9n tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c b\u1ed9 ph\u1eadn ti\u00eau d\u00f9ng v\u00e0 b\u1ea3ng ph\u00e2n ph\u1ed1i do \u0111\u1ed9 m\u1ecfng, gi\u00e1 th\u1ea5p v\u00e0 \u0111\u1ed9 b\u1ec1n \u0111\u1ec3 gi\u1eef nhi\u1ec1u b\u1ed9 ng\u1eaft m\u1ea1ch; v\u1ecf b\u1ea3o v\u1ec7 c\u1ea3 hai \u0111\u1ea7u c\u1ee7a thanh ray, th\u01b0\u1eddng c\u00f3 th\u00eam m\u1ed9t \u0111i\u1ec3m h\u1ed7 tr\u1ee3 \u1edf gi\u1eefa.<\/p>\n

M\u1eb7t c\u1eaft 15 mm l\u00e0 phi\u00ean b\u1ea3n m\u1edf r\u1ed9ng c\u1ee7a ki\u1ec3u m\u1eb7t c\u1eaft m\u0169 ch\u1ecfm, v\u1edbi chi\u1ec1u r\u1ed9ng 35 mm gi\u1ed1ng nh\u01b0 m\u1eb7t c\u1eaft 7,5 mm, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng khi tr\u1ecdng l\u01b0\u1ee3ng tr\u00ean thanh ray n\u1eb7ng h\u01a1n so v\u1edbi b\u1ed9 ng\u1eaft m\u1ea1ch, v\u00ed d\u1ee5, c\u00f3 th\u1ec3 c\u00f3 c\u00e1c h\u00e0ng kh\u1ed1i \u0111\u1ea7u cu\u1ed1i n\u1eb7ng, c\u00e1c contactor l\u1edbn h\u01a1n, b\u1ed9 kh\u1edfi \u0111\u1ed9ng nh\u00f3m ho\u1eb7c thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng li\u00ean t\u1ee5c (t\u1ee9c l\u00e0 b\u1eadt t\u1eaft li\u00ean t\u1ee5c). \u0110\u1ed9 d\u00e0y th\u00eam c\u1ee7a m\u1eb7t c\u1eaft n\u00e0y cho ph\u00e9p n\u00f3 ch\u1ecbu \u0111\u01b0\u1ee3c t\u1ea3i xo\u1eafn, \u0111i\u1ec1u m\u00e0 n\u1ebfu kh\u00f4ng c\u00f3 c\u00f3 th\u1ec3 g\u00e2y ra v\u1ea5n \u0111\u1ec1.<\/p>\n

Quy t\u1eafc th\u1ef1c t\u1ebf cho ng\u01b0\u1eddi l\u00e0m b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n; n\u1ebfu m\u1ed9t h\u00e0ng ch\u1ec9 c\u00f3 c\u00e1c thi\u1ebft b\u1ecb m\u00f4-\u0111un \u0111\u01b0\u1ee3c \u0111\u1ecbnh m\u1ee9c l\u00ean \u0111\u1ebfn 63 A, th\u00ec m\u1eb7t c\u1eaft 7,5 mm s\u1ebd \u1ed5n; tuy nhi\u00ean, n\u1ebfu h\u00e0ng \u0111\u00f3 c\u00f3 c\u00e1c kh\u1ed1i \u0111\u1ea7u cu\u1ed1i v\u1edbi c\u00e1p 16 mm\u00b2, ho\u1eb7c c\u00f3 thi\u1ebft b\u1ecb r\u1ed9ng h\u01a1n 4 m\u00f4-\u0111un, th\u00ec n\u00ean s\u1eed d\u1ee5ng m\u1eb7t c\u1eaft 15 mm. Trong tr\u01b0\u1eddng h\u1ee3p c\u00f3 c\u00e1c m\u00f4-\u0111un h\u1ed7n h\u1ee3p, thi\u1ebft b\u1ecb c\u00f3 k\u1eb9p l\u1edbn nh\u1ea5t s\u1ebd l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh m\u1eb7t c\u1eaft n\u00e0o s\u1ebd ph\u00f9 h\u1ee3p nh\u1ea5t cho nh\u00f3m; tuy nhi\u00ean, c\u00e1c m\u00f4-\u0111un kh\u00e1c r\u1ea5t c\u00f3 th\u1ec3 v\u1eabn t\u01b0\u01a1ng th\u00edch v\u1edbi thi\u1ebft k\u1ebf l\u1edbn h\u01a1n.<\/p>\n

\"5<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
Thi\u1ebft b\u1ecb<\/th>\n1P+N, 2P, 3P, 3P+N, 4P<\/th>\nChi\u1ec1u r\u1ed9ng<\/th>\nM\u00f4-\u0111un<\/th>\n<\/tr>\n<\/thead>\n
B\u1ed9 ng\u1eaft m\u1ea1ch nh\u1ecf m\u1ed9t c\u1ef1c (MCB)<\/td>\n1 C\u1ef1c<\/td>\n17,5 mm<\/td>\n1 M\u00f4-\u0111un<\/td>\n<\/tr>\n
B\u1ed9 ng\u1eaft m\u1ea1ch nh\u1ecf c\u00f3 trung t\u00ednh chuy\u1ec3n m\u1ea1ch<\/td>\n1 C\u1ef1c + Trung t\u00ednh<\/td>\n35 mm<\/td>\n2 M\u00f4-\u0111un<\/td>\n<\/tr>\n
B\u1ed9 ng\u1eaft m\u1ea1ch nh\u1ecf hai c\u1ef1c<\/td>\n2 C\u1ef1c<\/td>\n35 mm<\/td>\n2 M\u00f4-\u0111un<\/td>\n<\/tr>\n
B\u1ed9 ng\u1eaft m\u1ea1ch nh\u1ecf ba c\u1ef1c<\/td>\n3 C\u1ef1c<\/td>\n52,5 mm<\/td>\n3 M\u00f4-\u0111un<\/td>\n<\/tr>\n
B\u1ed9 ng\u1eaft m\u1ea1ch nh\u1ecf b\u1ed1n c\u1ef1c<\/td>\n4 C\u1ef1c<\/td>\n70 mm<\/td>\n4 M\u00f4-\u0111un<\/td>\n<\/tr>\n
C\u1ea7u dao ch\u1ed1ng r\u00f2 d\u00f2ng (RCBO) m\u00f4-\u0111un \u0111\u01a1n<\/td>\n1 C\u1ef1c + Trung t\u00ednh<\/td>\n17,5 \u2013 18 mm<\/td>\n1 M\u00f4-\u0111un<\/td>\n<\/tr>\n
C\u1ea7u dao ch\u1ed1ng r\u00f2 d\u00f2ng (RCBO) hai m\u00f4-\u0111un<\/td>\n1 C\u1ef1c + Trung t\u00ednh<\/td>\n35 mm<\/td>\n2 M\u00f4-\u0111un<\/td>\n<\/tr>\n
C\u1ea7u dao ch\u1ed1ng r\u00f2 d\u00f2ng (RCCB)(2P, 4P)<\/td>\n2 c\u1ef1c ho\u1eb7c 4 c\u1ef1c<\/td>\n35 mm ho\u1eb7c 70 mm<\/td>\n2 m\u00f4-\u0111un ho\u1eb7c 4 m\u00f4-\u0111un<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

C\u1ea3 hai d\u00f2ng d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec1u c\u1ea7n l\u01b0u \u00fd. RCBO m\u00f4-\u0111un \u0111\u01a1n l\u00e0 m\u1ed9t s\u1ea3n ph\u1ea9m r\u1ea5t h\u1eefu \u00edch v\u00ec n\u00f3 k\u1ebft h\u1ee3p b\u1ea3o v\u1ec7 r\u00f2 d\u00f2ng v\u00e0 qu\u00e1 d\u00f2ng trong kh\u00f4ng gian c\u1ee7a m\u1ed9t C\u1ea7u dao Miniature. Do \u0111\u00f3, m\u1ed9t b\u1ed9 ti\u00eau th\u1ee5 ng\u00e0y nay c\u00f3 th\u1ec3 ch\u1ee9a t\u00e1m RCBO v\u1edbi chi\u1ec1u r\u1ed9ng 140 mm, so v\u1edbi tr\u01b0\u1edbc \u0111\u00e2y l\u00e0 t\u00e1m RCBO c\u1ed9ng v\u1edbi RCCB ch\u00ednh v\u1edbi chi\u1ec1u r\u1ed9ng 210 mm; phi\u00ean b\u1ea3n hai m\u00f4-\u0111un ph\u1ed5 bi\u1ebfn h\u01a1n trong c\u00e1c thi\u1ebft k\u1ebf c\u0169 v\u00e0\/ho\u1eb7c cho c\u00e1c \u0111\u1ecbnh m\u1ee9c l\u1edbn h\u01a1n 32 A, y\u00eau c\u1ea7u kh\u00f4ng gian cho c\u01a1 ch\u1ebf c\u1ee7a ch\u00fang.<\/p>\n

S\u1ed1 c\u1ef1c c\u1ee7a thi\u1ebft b\u1ecb trong B\u1ea3ng n\u00e0y l\u00e0 l\u00fd do th\u01b0\u1eddng th\u1ea5y m\u1ed9t d\u1ea3i MCB \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh d\u1ef1a tr\u00ean s\u1ed1 l\u01b0\u1ee3ng m\u00f4-\u0111un h\u01a1n l\u00e0 k\u00edch th\u01b0\u1edbc v\u1eadt l\u00fd \u0111o \u0111\u01b0\u1ee3c. Khi m\u1ed9t l\u1ecbch tr\u00ecnh b\u1ea3ng ghi \u201c12 way,\u201d n\u00f3 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn m\u01b0\u1eddi hai m\u00f4-\u0111un c\u00f3 s\u1eb5n \u0111\u1ec3 g\u1eafn thi\u1ebft b\u1ecb l\u00ean thanh d\u1eabn h\u01b0\u1edbng, kh\u00f4ng ph\u1ea3i m\u01b0\u1eddi hai thi\u1ebft b\u1ecb t\u1ed5ng c\u1ed9ng. Do \u0111\u00f3, n\u1ebfu m\u1ed9t nh\u00e0 thi\u1ebft k\u1ebf l\u1eafp \u0111\u1ea7y m\u01b0\u1eddi hai v\u1ecb tr\u00ed v\u1edbi MCB m\u1ed9t c\u1ef1c v\u00e0 sau \u0111\u00f3 th\u00eam m\u1ed9t thi\u1ebft b\u1ecb ch\u1ed1ng r\u00f2 d\u00f2ng (RCD), th\u00ec anh\/c\u00f4 \u1ea5y \u0111\u00e3 l\u1ea5p \u0111\u1ea7y to\u00e0n b\u1ed9 thanh d\u1eabn h\u01b0\u1edbng c\u1ee7a b\u1ed9 ti\u00eau th\u1ee5 v\u1edbi c\u00e1c thi\u1ebft b\u1ecb.<\/p>\n

\u0110o Thanh D\u1eabn H\u01b0\u1edbng B\u1ea1n Hi\u1ec7n C\u00f3<\/h2>\n

B\u1ea1n c\u00f3 th\u1ec3 \u0111o thanh d\u1eabn h\u01b0\u1edbng c\u1ee7a b\u1ed9 ti\u00eau th\u1ee5 b\u1eb1ng c\u00e1ch \u0111o ba ch\u1ec9 s\u1ed1 nh\u1eadn d\u1ea1ng cho thanh d\u1eabn d\u01b0\u1edbi \u0111\u00e2y trong v\u00f2ng ch\u01b0a \u0111\u1ea7y ba m\u01b0\u01a1i gi\u00e2y b\u1eb1ng th\u01b0\u1edbc k\u1ebb. Chi\u1ec1u r\u1ed9ng: \u0111o t\u1eeb t\u00e2m m\u1eb7t ph\u1eb3ng c\u1ee7a m\u0169 \u0111\u1ebfn t\u00e2m m\u1eb7t ph\u1eb3ng \u0111\u1ed1i di\u1ec7n; k\u00edch th\u01b0\u1edbc n\u00e0y th\u01b0\u1eddng kho\u1ea3ng 35 mm qua m\u1ed7i m\u1eb7t ph\u1eb3ng c\u1ee7a thanh d\u1eabn.<\/p>\n

Chi\u1ec1u cao H\u1ed3 s\u01a1 (thanh d\u1eabn ti\u00eau chu\u1ea9n \u0111\u1ecdc kho\u1ea3ng 7,5 mm v\u00e0 phi\u00ean b\u1ea3n s\u00e2u l\u00e0 15 mm) \u0111o kho\u1ea3ng c\u00e1ch gi\u1eefa m\u1eb7t ph\u1eb3ng c\u1ee7a h\u1ed3 s\u01a1 v\u00e0 m\u1eb7t d\u01b0\u1edbi c\u1ee7a m\u00e9p. \u0110\u1ed9 d\u00e0y H\u1ed3 s\u01a1 th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111o t\u1eeb h\u1ed3 s\u01a1 th\u00e9p, v\u00ec th\u00e9p th\u01b0\u1eddng d\u00e0y h\u01a1n c\u00e1c h\u1ed3 s\u01a1 kh\u00e1c khi\u1ebfn vi\u1ec7c \u0111o kh\u00f3 h\u01a1n v\u00e0 th\u01b0\u1eddng kh\u00f4ng th\u1ec3 \u0111o \u0111\u01b0\u1ee3c trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng.<\/p>\n

N\u1ebfu Chi\u1ec1u r\u1ed9ng \u0111\u1ecdc l\u00e0 32 mm = H\u1ed3 s\u01a1 G, kh\u00f4ng \u0111\u1ed1i x\u1ee9ng (c\u00f3 c\u00e1c ph\u1ea7n) Thanh d\u1eabn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong thi\u1ebft b\u1ecb M\u1ef9 v\u00e0 Anh c\u0169 v\u00e0 v\u1eabn c\u00f3 s\u1eb5n trong m\u1ed9t s\u1ed1 b\u1ea3ng c\u00f4ng nghi\u1ec7p. Do \u0111\u00f3, thi\u1ebft b\u1ecb Thanh d\u1eabn G s\u1ebd kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi h\u1ed3 s\u01a1 35 mm. V\u00ec v\u1eady, n\u1ebfu b\u1ea1n mu\u1ed1n thay th\u1ebf thi\u1ebft b\u1ecb Thanh d\u1eabn G b\u1eb1ng thi\u1ebft b\u1ecb cho Thanh d\u1eabn ti\u00eau chu\u1ea9n 35 mm, b\u1ea1n s\u1ebd c\u1ea7n so s\u00e1nh Thanh d\u1eabn G v\u1edbi Thanh d\u1eabn ti\u00eau chu\u1ea9n 35 mm.<\/p>\n

Th\u1ee9 t\u01b0, ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t c\u00f3 th\u1ec3 l\u00e0 c\u1ed1 \u0111\u1ecbnh ho\u1eb7c k\u1eb9p v\u00e0o t\u1ea5m l\u01b0ng c\u1ee7a t\u1ee7. Ph\u01b0\u01a1ng ph\u00e1p c\u1ed1 \u0111\u1ecbnh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thay th\u1ebf ho\u1eb7c m\u1edf r\u1ed9ng; tuy nhi\u00ean, ph\u01b0\u01a1ng ph\u00e1p k\u1eb9p c\u00f3 th\u1ec3 kh\u00f4ng \u0111\u01b0\u1ee3c, v\u00ec s\u1ef1 h\u1ed7 tr\u1ee3 \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh b\u1edfi khu\u00f4n t\u1ee7. \u0110i\u1ec1u n\u00e0y s\u1ebd \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c c\u00f3 th\u1ec3 n\u00e2ng c\u1ea5p b\u1ea3ng t\u1ea1i ch\u1ed7 hay ph\u1ea3i thay th\u1ebf to\u00e0n b\u1ed9 b\u1ed9 ti\u00eau th\u1ee5 nh\u01b0 m\u1ed9t th\u1ef1c th\u1ec3.<\/p>\n

\"C\u00e1ch<\/p>\n

C\u00e1ch \u0110\u1ecbnh K\u00edch Th\u01b0\u1edbc Thanh D\u1eabn Cho B\u1ea3ng<\/h2>\n

Vi\u1ec7c t\u00ednh to\u00e1n c\u00e1ch \u0110\u1ecbnh K\u00edch Th\u01b0\u1edbc Thanh Ray Cho B\u1ea3ng M\u1ea1ch, c\u00e1c ph\u00e9p t\u00ednh t\u1ed5ng th\u1ec3 d\u1ef1a tr\u00ean ph\u01b0\u01a1ng ph\u00e1p s\u1ed1 h\u1ecdc c\u1ee7a Vi\u1ec7c T\u00ednh To\u00e1n (+ bi\u00ean \u0111\u1ed9) b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng s\u1ed1 Module t\u1eeb L\u1ecbch tr\u00ecnh MM v\u00e0 nh\u00e2n v\u1edbi 17,5 MM, Th\u00eam kh\u00f4ng gian C\u00f4ng t\u1eafc Ch\u00ednh\/RCD n\u1ebfu ch\u01b0a \u0111\u01b0\u1ee3c t\u00ednh, v\u00e0 th\u00eam +10%-15% cho c\u00e1c M\u1ea1ch s\u1ebd xu\u1ea5t hi\u1ec7n n\u1ebfu b\u1ea3ng m\u1ea1ch \u0111\u01b0\u1ee3c b\u00e0n giao.<\/p>\n\n\n\n\n\n\n\n\n\n
B\u1ea3ng M\u1ea1ch<\/th>\nC\u00e1c m\u00f4-\u0111un c\u1ea7n thi\u1ebft<\/th>\nChi\u1ec1u d\u00e0i ray<\/th>\nChi\u1ec1u r\u1ed9ng t\u1ee7 \u0111i\u1ec3n h\u00ecnh<\/th>\n<\/tr>\n<\/thead>\n
B\u1ea3ng ph\u1eb3ng nh\u1ecf<\/td>\n8 m\u00f4-\u0111un<\/td>\nRay 140mm<\/td>\nT\u1ee7 200mm (8-10 ng\u0103n)<\/td>\n<\/tr>\n
Nh\u00e0 3 ph\u00f2ng ng\u1ee7<\/td>\n1 c\u00f4ng t\u1eafc ch\u00ednh, 10 MCB, 13 m\u00f4-\u0111un<\/td>\nRay 228mm<\/td>\nT\u1ee7 250mm (12-14 ng\u0103n)<\/td>\n<\/tr>\n
Nh\u00e0 c\u00f3 8 RCBO v\u00e0 1 c\u00f4ng t\u1eafc ch\u00ednh<\/td>\n10 m\u00f4-\u0111un<\/td>\nRay 175mm<\/td>\nT\u1ee7 230mm (10-12 ng\u0103n)<\/td>\n<\/tr>\n
B\u1ea3ng th\u01b0\u01a1ng m\u1ea1i nh\u1ecf (18 ng\u0103n)<\/td>\n20 m\u00f4-\u0111un<\/td>\nRay 350mm<\/td>\nT\u1ee7 400mm (18-21 ng\u0103n)<\/td>\n<\/tr>\n
B\u1ea3ng 3 pha (12 ng\u0103n 3 c\u1ef1c v\u1edbi c\u00f4ng t\u1eafc ch\u00ednh)<\/td>\n36 ho\u1eb7c nhi\u1ec1u h\u01a1n (c\u1ed9ng v\u1edbi c\u00f4ng t\u1eafc ch\u00ednh)<\/td>\nRay 630mm<\/td>\nT\u1ee7 700mm (2 h\u00e0ng)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The \u2192 C\u00e1i chi\u1ec1u r\u1ed9ng t\u1ee7 kh\u00e1c v\u1edbi chi\u1ec1u d\u00e0i ray<\/a>, v\u00e0 \u0111i\u1ec1u n\u00e0y g\u00e2y nh\u1ea7m l\u1eabn cho ng\u01b0\u1eddi \u0111\u1eb7t h\u00e0ng t\u1eeb catalogue. M\u1ed9t b\u1ea3ng \u201c12 ng\u0103n\u201d c\u00f3 12 v\u1ecb tr\u00ed m\u00f4-\u0111un s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c tr\u00ean ray r\u1ed9ng 250mm, v\u00ec ray \u0111\u01b0\u1ee3c k\u1eb9p gi\u1eefa hai gi\u00e1 \u0111\u1ee1 \u0111\u1ea7u cu\u1ed1i, v\u00e0 khung c\u1eeda t\u1ee7 chi\u1ebfm ph\u1ea7n c\u00f2n l\u1ea1i c\u1ee7a kh\u00f4ng gian.<\/p>\n

Chi\u1ec1u s\u00e2u v\u00e0 chi\u1ec1u cao t\u1ee7 x\u00e1c \u0111\u1ecbnh kh\u00f4ng gian c\u00f3 s\u1eb5n \u0111\u1ec3 l\u1eafp \u0111\u1eb7t v\u00e0 kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o chi\u1ec1u r\u1ed9ng t\u1ee7. V\u00ed d\u1ee5, v\u1edbi 200 mm ray s\u1eed d\u1ee5ng \u0111\u01b0\u1ee3c v\u00e0 chi\u1ec1u s\u00e2u t\u1ee7 100 mm, b\u1ea1n s\u1ebd kh\u00f4ng th\u1ec3 \u0111\u00f3ng t\u1ee7 l\u1ea1i n\u1ebfu c\u00f3 thi\u1ebft b\u1ecb nh\u00f4 ra 85mm t\u1eeb ray, sau khi d\u00e2y \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i. Khi k\u00edch th\u01b0\u1edbc v\u1eadt l\u00fd c\u1ee7a h\u1ed9p \u0111i\u1ec7n \u0111\u01b0\u1ee3c x\u00e1c minh n\u1eb1m trong gi\u1edbi h\u1ea1n ch\u1ea5p nh\u1eadn \u0111\u01b0\u1ee3c (chi\u1ec1u cao v\u00e0 chi\u1ec1u s\u00e2u), h\u1ed9p \u0111i\u1ec7n n\u00ean \u0111\u01b0\u1ee3c ki\u1ec3m tra kho\u1ea3ng c\u00e1ch v\u1edbi k\u00edch th\u01b0\u1edbc v\u1eadt l\u00fd c\u1ee7a thi\u1ebft b\u1ecb tr\u01b0\u1edbc khi \u0111\u1eb7t h\u00e0ng b\u1ea3ng. L\u1ed6I N\u00c0Y CH\u1ec8 X\u1ea2Y RA duy nh\u1ea5t trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t b\u1ea3ng th\u1ef1c t\u1ebf.<\/p>\n

Ray c\u00f3 thay \u0111\u1ed5i theo qu\u1ed1c gia kh\u00f4ng?<\/h2>\n

Ray KH\u00d4NG THAY \u0110\u1ed4I theo qu\u1ed1c gia. Ray 35mm (IEC 60715) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i tr\u00ean to\u00e0n th\u1ebf gi\u1edbi, v\u00ec v\u1eady kh\u00f4ng c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa ray 35mm mua \u1edf Trung Qu\u1ed1c (Th\u01b0\u1ee3ng H\u1ea3i) so v\u1edbi ray 35mm mua \u1edf T\u00e2y \u00c2u (Rotterdam).<\/p>\n

C\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 c\u00e1ch thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t v\u00e0 s\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y d\u1eabn \u0111\u1ebfn ba khu v\u1ef1c ri\u00eang bi\u1ec7t v\u00e0 kh\u00e1c bi\u1ec7t cho ch\u1ee7 nh\u00e0.<\/p>\n

B\u1eafc M\u1ef9 c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t l\u1edbn nh\u1ea5t v\u00ec trung t\u00e2m t\u1ea3i d\u00e2n d\u1ee5ng B\u1eafc M\u1ef9 l\u00e0 m\u1ed9t t\u1ee7 \u0111\u1ed9c quy\u1ec1n (\u0111\u01b0\u1ee3c bao k\u00edn ho\u00e0n to\u00e0n) th\u01b0\u1eddng kh\u00f4ng c\u00f3 ray DIN v\u00ec c\u00e1c c\u1ea7u dao \u0111\u01b0\u1ee3c k\u1eb9p tr\u1ef1c ti\u1ebfp v\u00e0o thanh c\u00e1i\/busbar lo\u1ea1i stab-on. Khi ray DIN xu\u1ea5t hi\u1ec7n trong c\u00f4ng vi\u1ec7c th\u01b0\u01a1ng m\u1ea1i v\u00e0 c\u00f4ng nghi\u1ec7p \u1edf B\u1eafc M\u1ef9, chi\u1ec1u r\u1ed9ng ray ti\u00eau chu\u1ea9n l\u00e0 35 mm v\u00e0 trong c\u00e1c h\u1ec7 th\u1ed1ng quang \u0111i\u1ec7n (n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi) v\u00e0 b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n, n\u00f3 ng\u00e0y c\u00e0ng ph\u1ed5 bi\u1ebfn h\u01a1n. Thi\u1ebft b\u1ecb c\u0169 c\u00f3 th\u1ec3 \u0111\u00e3 s\u1eed d\u1ee5ng ray G 32 mm.<\/p>\n

Qu\u1ea7n \u0111\u1ea3o Anh v\u00e0 Ireland \u0111\u00e3 s\u1eed d\u1ee5ng thanh ray DIN 35 mm cho nhi\u1ec1u B\u1ed9 ti\u00eau th\u1ee5 hi\u1ec7n \u0111\u1ea1i h\u01a1n c\u1ee7a h\u1ecd; tuy nhi\u00ean, nhi\u1ec1u b\u1ea3ng c\u1ea7u ch\u00ec t\u1eeb nh\u1eefng n\u0103m 1970 v\u00e0 \u0111\u1ea7u nh\u1eefng n\u0103m 1980 \u0111\u00e3 s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p g\u1eafn kh\u00e1c; do \u0111\u00f3, m\u1ed9t RCBO d\u00e0nh cho b\u1ea3ng c\u1ea7u ch\u00ec t\u1eeb nh\u1eefng n\u0103m 1980 c\u00f3 th\u1ec3 c\u1ea7n m\u1ed9t b\u1ed9 chuy\u1ec3n \u0111\u1ed5i \u0111\u1ec3 g\u1eafn v\u00e0o B\u1ed9 ti\u00eau th\u1ee5 hi\u1ec7n \u0111\u1ea1i. \u00dac v\u00e0 New Zealand \u0111\u00e3 tu\u00e2n theo ti\u00eau chu\u1ea9n IEC s\u1eed d\u1ee5ng thanh ray 35 mm v\u00e0 \u0111\u00e3 ph\u00e1t tri\u1ec3n c\u00e1c m\u00f4-\u0111un r\u1ed9ng 17,5 mm v\u00e0 c\u00e1c b\u1ed9 ng\u1eaft c\u1ee7a h\u1ecd gi\u1ed1ng nh\u01b0 \u1edf ch\u00e2u \u00c2u. M\u1ed9t s\u1ed1 nh\u00e0 s\u1ea3n xu\u1ea5t Nh\u1eadt B\u1ea3n \u0111ang s\u1ea3n xu\u1ea5t b\u1ed9 ng\u1eaft v\u00e0 ph\u1ee5 ki\u1ec7n theo c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u01a1 b\u1ea3n gi\u1ed1ng nh\u01b0 c\u00e1c m\u1eabu ch\u00e2u \u00c2u, v\u00e0 h\u1ecd c\u0169ng s\u1eed d\u1ee5ng thanh ray 35 mm v\u00e0 dung sai JIS c\u00f3 th\u1ec3 t\u01b0\u01a1ng th\u00edch cho \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf. \u1ea4n \u0110\u1ed9, Trung \u0110\u00f4ng v\u00e0 \u0110\u00f4ng Nam \u00c1 \u0111\u1ec1u ho\u00e0n to\u00e0n tu\u00e2n th\u1ee7 IEC.<\/p>\n

S\u1ef1 kh\u00e1c bi\u1ec7t l\u1edbn kh\u00e1c gi\u1eefa c\u00e1c khu v\u1ef1c kh\u00f4ng ph\u1ea3i l\u00e0 v\u1ec1 k\u00edch th\u01b0\u1edbc c\u1ee7a thanh ray m\u00e0 l\u00e0 k\u00edch th\u01b0\u1edbc c\u1ee7a THI\u1ebeT B\u1eca th\u1ef1c t\u1ebf. M\u1ed9t trung t\u00e2m t\u1ea3i \u0111\u01a1n \u1edf B\u1eafc M\u1ef9 c\u00f3 chi\u1ec1u r\u1ed9ng kho\u1ea3ng 25 mm v\u00e0 d\u00e0y 1 inch m\u1ed7i c\u1ef1c, do \u0111\u00f3, n\u00f3 c\u00f3 d\u1ea1ng k\u00edch th\u01b0\u1edbc ho\u00e0n to\u00e0n kh\u00e1c; do \u0111\u00f3, m\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng cho th\u1ecb tr\u01b0\u1eddng B\u1eafc M\u1ef9 s\u1ebd kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c thi\u1ebft b\u1ecb m\u00f4-\u0111un IEC, v\u00e0 quy\u1ebft \u0111\u1ecbnh v\u1ec1 k\u00edch th\u01b0\u1edbc thanh ray ch\u1ec9 \u0111\u01b0\u1ee3c \u0111\u01b0a ra sau khi d\u1ef1 \u00e1n \u0111\u00e3 \u00e1p d\u1ee5ng h\u1ec7 th\u1ed1ng IEC cho vi\u1ec7c l\u1eafp \u0111\u1eb7t.<\/p>\n

V\u1eadt li\u1ec7u thanh ray, \u0111\u1ed9 d\u00e0y v\u00e0 l\u00fd do thanh ray r\u1ebb ti\u1ec1n b\u1ecb h\u1ecfng<\/h2>\n

Thanh ray \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t t\u1eeb Th\u00e9p c\u00e1n ngu\u1ed9i<\/strong> \u0111\u01b0\u1ee3c m\u1ea1 k\u1ebdm, v\u1edbi \u0111\u1ed9 d\u00e0y 1mm cho h\u1ed3 s\u01a1 7,5mm v\u00e0 th\u01b0\u1eddng t\u1eeb 1,5 \u0111\u1ebfn 2mm cho c\u00e1c h\u1ed3 s\u01a1 s\u00e2u h\u01a1n. L\u1edbp m\u1ea1 c\u1ee7a thanh ray r\u1ea5t quan tr\u1ecdng v\u00ec thanh ray l\u00e0 \u0111\u01b0\u1eddng d\u1eabn d\u1eabn \u0111i\u1ec7n trong tr\u01b0\u1eddng h\u1ee3p l\u1ed7i, v\u00e0 thanh ray m\u1ea1 k\u1ebdm s\u1ebd kh\u00f4ng b\u1ecb r\u1ec9 s\u00e9t t\u1ea1i c\u00e1c l\u1ed7 g\u1eafn trong kho\u1ea3ng 2 n\u0103m khi \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t trong m\u00f4i tr\u01b0\u1eddng \u1ea9m \u01b0\u1edbt nh\u01b0 ph\u00f2ng m\u00e1y.<\/p>\n

Thanh ray nh\u00f4m kh\u00f4ng n\u00ean \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho h\u00e0ng b\u1ed9 ng\u1eaft. Khi s\u1eed d\u1ee5ng thanh ray nh\u00f4m, thanh ray nh\u00f4m s\u1ebd bi\u1ebfn d\u1ea1ng d\u01b0\u1edbi t\u1ea3i tr\u1ecdng t\u1eadp trung khi k\u1eb9p c\u1ee7a thi\u1ebft b\u1ecb b\u1ecb th\u00e1o ra b\u1eb1ng c\u00e1ch \u0111\u00f2n b\u1ea9y. Khi thanh ray nh\u00f4m \u0111\u00e3 b\u1ecb bi\u1ebfn d\u1ea1ng, c\u00e1c thi\u1ebft b\u1ecb s\u1ebd kh\u00f4ng c\u00f2n v\u1eeba kh\u00edt trong thanh ray v\u00e0 thanh busbar c\u0169ng s\u1ebd kh\u00f4ng c\u0103n ch\u1ec9nh \u0111\u00fang. Do \u0111\u00f3, n\u1ebfu s\u1eed d\u1ee5ng thanh ray nh\u00f4m, s\u1ebd c\u1ea7n ph\u1ea3i th\u00e1o b\u1ecf v\u00e0 lo\u1ea1i b\u1ecf to\u00e0n b\u1ed9 thanh ray v\u00e0 t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb \u0111\u1ec3 x\u00e2y d\u1ef1ng l\u1ea1i h\u00e0ng.<\/span>.<\/p>\n

\u0110\u1ed8 D\u00c0Y c\u1ee7a thanh ray c\u0169ng l\u00e0 m\u1ed9t \u0111i\u1ec3m d\u1ec5 h\u1ecfng. Thanh ray d\u00e0y 0,6mm s\u1ebd b\u1ecb u\u1ed1n cong do l\u1ef1c t\u00e1c \u0111\u1ed9ng t\u1eeb vi\u1ec7c l\u1eafp \u0111\u1eb7t c\u00e1c thi\u1ebft b\u1ecb<\/span>. S\u1ef1 u\u1ed1n cong n\u00e0y s\u1ebd l\u00e0m c\u00e1c k\u1eb9p h\u01a1i n\u00e2ng l\u00ean khi c\u00e1c thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t, khi\u1ebfn c\u00e1c thi\u1ebft b\u1ecb c\u00f3 v\u1ebb nh\u01b0 \u0111\u00e3 \u0111\u01b0\u1ee3c g\u1eafn ch\u1eb7t trong khi th\u1ef1c t\u1ebf th\u00ec kh\u00f4ng. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong c\u00e1c h\u00e0ng ba pha 36 m\u00f4-\u0111un, \u0111\u00f3 l\u00e0 l\u00fd do c\u00e1c thanh ray c\u00f3 h\u1ed3 s\u01a1 s\u00e2u \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t cho c\u00e1c \u1ee9ng d\u1ee5ng y\u00eau c\u1ea7u chi\u1ec1u d\u00e0i thanh ray l\u1edbn.<\/p>\n

C\u1eaft, g\u1eafn v\u00e0 kho\u1ea3ng c\u00e1ch th\u00f4ng tho\u00e1ng<\/h2>\n

Thanh ray c\u00f3 s\u1eb5n v\u1edbi chi\u1ec1u d\u00e0i m\u1ed9t m\u00e9t v\u00e0 hai m\u00e9t. Thanh ray c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u1eaft t\u1ea1i c\u00f4ng tr\u01b0\u1eddng l\u1eafp \u0111\u1eb7t b\u1eb1ng c\u01b0a tay ho\u1eb7c m\u00e1y m\u00e0i g\u00f3c. Hai ti\u00eau ch\u00ed quan tr\u1ecdng nh\u1ea5t \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ed9t \u0111\u01b0\u1eddng c\u1eaft t\u1ed1t l\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng thanh ray \u0111\u01b0\u1ee3c c\u1eaft vu\u00f4ng g\u00f3c theo chi\u1ec1u d\u00e0i v\u00e0 \u0111\u1ea3m b\u1ea3o r\u1eb1ng c\u1ea3 hai \u0111\u1ea7u c\u1ee7a \u0111o\u1ea1n thanh ray m\u1edbi c\u1eaft \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch g\u1edd bavia. M\u1ed9t g\u1edd bavia tr\u00ean m\u00e9p c\u1ee7a thi\u1ebft b\u1ecb \u0111\u00f3 s\u1ebd ng\u0103n thi\u1ebft b\u1ecb k\u1eb9p v\u00e0o thanh ray v\u00e0 d\u1eabn \u0111\u1ebfn ph\u1ea3n \u1ee9ng t\u1ef1 nhi\u00ean l\u00e0 \u00e9p thi\u1ebft b\u1ecb v\u00e0o v\u1ecb tr\u00ed, \u0111i\u1ec1u n\u00e0y s\u1ebd l\u00e0m thanh ray b\u1ecb cong.<\/p>\n

Vi\u1ec7c cho ph\u00e9p c\u00e1c ch\u1eb7n \u0111\u1ea7u c\u00f3 kho\u1ea3ng c\u00e1ch kho\u1ea3ng 2-3mm \u1edf m\u1ed7i \u0111\u1ea7u l\u00e0 quan tr\u1ecdng do ch\u1ee9c n\u0103ng ch\u1ecbu t\u1ea3i c\u1ee7a ch\u00fang ch\u1ee9 kh\u00f4ng ch\u1ec9 mang t\u00ednh th\u1ea9m m\u1ef9. M\u1ed9t h\u00e0ng c\u1ea7u dao kh\u00f4ng c\u00f3 ch\u1eb7n \u0111\u1ea7u c\u00f3 th\u1ec3 tr\u01b0\u1ee3t sang b\u00ean, v\u00e0 m\u1ed9t h\u00e0ng thi\u1ebft b\u1ecb tr\u01b0\u1ee3t s\u1ebd k\u00e9o l\u01b0\u1ee3c thanh c\u00e1i l\u1ec7ch kh\u1ecfi v\u1ecb tr\u00ed. Do \u0111\u00f3, th\u1ef1c h\u00e0nh th\u00f4ng th\u01b0\u1eddng l\u00e0 s\u1eed d\u1ee5ng m\u1ed9t ch\u1eb7n \u0111\u1ea7u \u1edf m\u1ed7i \u0111\u1ea7u c\u1ee7a thanh ray mang h\u01a1n 10 thi\u1ebft b\u1ecb, ngo\u00e0i ra c\u00f2n c\u00f3 m\u1ed9t ch\u1eb7n \u1edf gi\u1eefa thanh ray.<\/p>\n

Kho\u1ea3ng c\u00e1ch cho d\u00e2y \u0111i\u1ec7n th\u01b0\u1eddng b\u1ecb b\u1ecf qua. Thi\u1ebft b\u1ecb nh\u00f4 ra 70-75mm v\u1ec1 ph\u00eda tr\u01b0\u1edbc so v\u1edbi m\u1eb7t thanh ray v\u00e0, b\u00ean trong v\u1ecf thi\u1ebft b\u1ecb, c\u00e1c d\u00e2y c\u00e1p s\u1ebd c\u1ea7n ph\u1ea3i u\u1ed1n cong, do \u0111\u00f3 b\u1ea3ng c\u1ea7n cung c\u1ea5p kh\u00f4ng gian tr\u1ed1ng 60mm ph\u00eda tr\u00ean thanh ray cho ph\u00eda v\u00e0o, v\u00e0 c\u00f9ng kho\u1ea3ng kh\u00f4ng gian \u0111\u00f3 ph\u00eda d\u01b0\u1edbi. M\u1ed9t RCBO \u0111\u1eb7t trong v\u1ecf n\u00f4ng s\u1ebd kh\u00f4ng cung c\u1ea5p \u0111\u1ee7 kho\u1ea3ng c\u00e1ch \u0111\u1ec3 u\u1ed1n d\u00e2y c\u00e1p, d\u1eabn \u0111\u1ebfn ho\u1eb7c n\u1eafp kh\u00f4ng th\u1ec3 \u0111\u00f3ng, ho\u1eb7c d\u00e2y c\u00e1p b\u1ecb k\u1eb9p.<\/p>\n

\"C\u1eaft,<\/p>\n

Thanh ray v\u00e0 v\u1ecf thi\u1ebft b\u1ecb ph\u1ea3i \u0111\u01b0\u1ee3c k\u1ebft h\u1ee3p v\u1edbi thanh c\u00e1i<\/h2>\n

Thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c \u0111\u1eb7t tr\u00ean thanh ray v\u00e0 k\u1ebft n\u1ed1i b\u1eb1ng thanh c\u00e1i l\u01b0\u1ee3c. Thanh c\u00e1i c\u00f3 v\u1ecb tr\u00ed b\u01b0\u1edbc c\u1ed1 \u0111\u1ecbnh 18mm, bao g\u1ed3m m\u00f4-\u0111un 17,5mm c\u1ed9ng v\u1edbi kho\u1ea3ng c\u00e1ch. C\u1ea7n th\u1eadn tr\u1ecdng khi l\u00e0m vi\u1ec7c v\u1edbi c\u00e1c h\u00e0ng h\u1ed7n h\u1ee3p v\u00ec thanh c\u00e1i v\u1edbi b\u01b0\u1edbc 18mm s\u1ebd kh\u00f4ng th\u1eb3ng h\u00e0ng v\u1edbi c\u00e1c thi\u1ebft b\u1ecb c\u00f3 chi\u1ec1u r\u1ed9ng 18mm do m\u1ed7i thi\u1ebft b\u1ecb c\u00f3 v\u1ecb tr\u00ed l\u1eafp \u0111\u1eb7t h\u01a1i kh\u00e1c nhau. Thanh c\u00e1i s\u1ebd kh\u00f4ng tr\u1ea3i \u0111\u00fang cho RCBO 2 m\u00f4-\u0111un; s\u1ebd c\u00f3 kho\u1ea3ng tr\u1ed1ng. M\u1ed9t h\u00e0ng m\u00f4-\u0111un n\u00ean \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf tr\u01b0\u1edbc b\u1eb1ng m\u00f4-\u0111un, sau \u0111\u00f3 thi\u1ebft k\u1ebf b\u1eb1ng thi\u1ebft b\u1ecb theo c\u00e1ch m\u00e0 n\u00f3 s\u1ebd \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cu\u1ed1i c\u00f9ng. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p linh ho\u1ea1t h\u01a1n khi \u0111\u1eb7t h\u00e0ng thanh c\u00e1i, v\u00ec n\u00f3 s\u1ebd \u0111\u01b0\u1ee3c \u0111\u1eb7t theo s\u1ed1 l\u01b0\u1ee3ng t\u1eebng lo\u1ea1i thi\u1ebft b\u1ecb c\u1ea7n, thay v\u00ec theo s\u1ed1 thanh c\u00e1i c\u00f3 th\u1ec3 v\u1eeba trong v\u1ecf thi\u1ebft b\u1ecb.<\/p>\n

Khi m\u1ed9t h\u00e0ng c\u00f3 c\u1ea3 thi\u1ebft b\u1ecb d\u00f2ng d\u01b0 hai c\u1ef1c v\u00e0 b\u1ed1n c\u1ef1c \u0111\u1eb7t trong c\u00f9ng m\u1ed9t h\u00e0ng, c\u01a1 ch\u1ebf b\u01b0\u1edbc l\u1ea1i thay \u0111\u1ed5i. Ph\u1ea1m vi thi\u1ebft b\u1ecb d\u00f2ng d\u01b0 c\u00f3 th\u1ec3 kh\u00e1c bi\u1ec7t \u0111\u00e1ng k\u1ec3 v\u1ec1 s\u1ed1 l\u01b0\u1ee3ng m\u00f4-\u0111un gi\u1eefa c\u00e1c thi\u1ebft k\u1ebf. V\u00ed d\u1ee5, RCCB b\u1ed1n c\u1ef1c<\/a> cho b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ba pha y\u00eau c\u1ea7u 70 mm. \u0110i\u1ec1u n\u00e0y t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi b\u1ed1n m\u1ea1ch kh\u00f4ng th\u1ec3 s\u1eed d\u1ee5ng cho m\u1ea1ch ra.<\/p>\n

C\u00e1ch HUYU K\u1ebft N\u1ed1i<\/h2>\n

Thi\u1ebft b\u1ecb m\u00f4-\u0111un c\u1ee7a ch\u00fang t\u00f4i \u0111\u01b0\u1ee3c t\u1ea1o ra v\u1edbi m\u1ed9t m\u00f4-\u0111un 17,5 mm<\/strong> v\u00e0 giao di\u1ec7n ray 35 mm, do \u0111\u00f3 x\u00e1c \u0111\u1ecbnh li\u1ec7u m\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng t\u1eeb vi\u1ec7c s\u1eed d\u1ee5ng nhi\u1ec1u th\u01b0\u01a1ng hi\u1ec7u m\u00e0 kh\u00f4ng c\u1ea7n ph\u1ea3i l\u00e0m l\u1ea1i ch\u00fang hay kh\u00f4ng. D\u00f2ng EXB3<\/a> cung c\u1ea5p ph\u1ea1m vi \u0111\u1ea7y \u0111\u1ee7 cho c\u00e1c m\u1ee9c \u0111\u00e1nh gi\u00e1 \u0111\u01b0\u1eddng cong B, C v\u00e0 D v\u1edbi c\u00e1c m\u1ee9c 6, 8, 10, 15, 20, 25, 32, 40, 50, 63 amp \u1edf 6 kA, trong c\u00e1c c\u1ea5u h\u00ecnh c\u1ef1c \u0111\u01a1n, \u0111\u00f4i, ba v\u00e0 b\u1ed1n c\u1ef1c, s\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t h\u00ecnh h\u1ecdc k\u1eb9p tr\u00ean to\u00e0n b\u1ed9 ph\u1ea1m vi, cho ph\u00e9p c\u00e1c h\u00e0ng thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t m\u00e0 kh\u00f4ng c\u1ea7n ch\u00eam.<\/p>\n

So s\u00e1nh, b\u1ed9 ng\u1eaft m\u1ea1ch v\u1ecf \u0111\u00fac EXM3<\/a> c\u00f3 th\u1ec3 cung c\u1ea5p d\u1ecbch v\u1ee5 t\u1eeb m\u1ee9c 16 amp \u0111\u1ebfn 250 amp v\u00e0 l\u00e0 m\u1ed9t l\u1edbp l\u1eafp \u0111\u1eb7t ho\u00e0n to\u00e0n kh\u00e1c; thi\u1ebft b\u1ecb n\u00e0y \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t b\u1eb1ng c\u00e1ch g\u1eafn v\u00e0o m\u1ed9t t\u1ea5m, thay v\u00ec k\u1eb9p v\u00e0o ray. Vi\u1ec7c hi\u1ec3u r\u00f5 s\u1ef1 kh\u00e1c bi\u1ec7t n\u00e0y l\u00e0 c\u1ea7n thi\u1ebft khi thi\u1ebft k\u1ebf b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n, v\u00ec gi\u1ea3 \u0111\u1ecbnh h\u1ee3p l\u00fd l\u00e0 t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb s\u1ebd l\u00e0 m\u00f4-\u0111un; s\u1ef1 chuy\u1ec3n \u0111\u1ed5i n\u00e0y th\u01b0\u1eddng x\u1ea3y ra \u1edf kho\u1ea3ng 125 amp, n\u01a1i b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n ng\u1eebng l\u00e0 B\u1ed9 ti\u00eau th\u1ee5 v\u00e0 tr\u1edf th\u00e0nh B\u1ea3ng chuy\u1ec3n m\u1ea1ch. Khi ch\u00fang t\u00f4i y\u00eau c\u1ea7u th\u00f4ng tin v\u1ec1 m\u1ed9t b\u1ea3ng, ch\u00fang t\u00f4i h\u1ecfi ba \u0111i\u1ec1u: S\u1ed1 l\u01b0\u1ee3ng m\u00f4-\u0111un, c\u1ea5u h\u00ecnh c\u1ef1c v\u00e0 chi\u1ec1u r\u1ed9ng v\u1ecf. Ba gi\u00e1 tr\u1ecb n\u00e0y x\u00e1c \u0111\u1ecbnh s\u1ed1 l\u01b0\u1ee3ng ray, thanh c\u00e1i v\u00e0 l\u1ed1i \u0111i t\u01b0\u01a1ng \u1ee9ng; n\u1ebfu kh\u00f4ng \u0111\u01b0\u1ee3c cung c\u1ea5p c\u00f9ng y\u00eau c\u1ea7u c\u1ee7a b\u1ea1n, b\u00e1o gi\u00e1 c\u1ee7a b\u1ea1n s\u1ebd ch\u1ec9 ph\u1ea3n \u00e1nh chi ph\u00ed s\u1ea3n ph\u1ea9m m\u00e0 kh\u00f4ng ph\u1ea3i b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n.<\/p>\n

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

K\u00edch th\u01b0\u1edbc ti\u00eau chu\u1ea9n c\u1ee7a Ray DIN l\u00e0 bao nhi\u00eau?<\/h3>\n

Ray DIN \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a r\u1ed9ng 35mm, s\u1eed d\u1ee5ng c\u1ea5u h\u00ecnh m\u0169 ch\u1ecfm theo IEC\/EN 60715, v\u1edbi chi\u1ec1u cao l\u00e0 7,5mm (s\u1eed d\u1ee5ng c\u00f9ng v\u1edbi MCB ho\u1eb7c thi\u1ebft b\u1ecb m\u00f4-\u0111un) ho\u1eb7c 15mm (s\u1eed d\u1ee5ng c\u00f9ng v\u1edbi c\u00e1c kh\u1ed1i \u0111\u1ea7u cu\u1ed1i n\u1eb7ng h\u01a1n ho\u1eb7c thi\u1ebft b\u1ecb c\u00f4ng nghi\u1ec7p). C\u00f3 c\u00e1c chi\u1ec1u r\u1ed9ng kh\u00e1c t\u1ed3n t\u1ea1i. C\u1ee5 th\u1ec3 l\u00e0 15mm v\u00e0 75mm, nh\u01b0ng kh\u00f4ng c\u00e1i n\u00e0o trong s\u1ed1 n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00f9ng v\u1edbi MCB.<\/p>\n

Ray DIN d\u00e0nh cho MCB l\u00e0 g\u00ec?<\/h3>\n

Ray DIN l\u00e0 k\u00eanh kim lo\u1ea1i m\u00e0 MCB k\u1eb9p v\u00e0o khi \u0111\u1eb7t b\u00ean trong v\u1ecf. K\u1eb9p n\u1eb1m \u1edf m\u1eb7t sau c\u1ee7a MCB m\u00f3c d\u01b0\u1edbi m\u00e9p tr\u01b0\u1edbc c\u1ee7a Ray DIN v\u00e0 b\u1ea5m l\u00ean ph\u00eda sau c\u1ee7a Ray DIN, cho ph\u00e9p l\u1eafp \u0111\u1eb7t v\u00e0 th\u00e1o MCB m\u00e0 kh\u00f4ng c\u1ea7n s\u1eed d\u1ee5ng b\u1ea5t k\u1ef3 c\u00f4ng c\u1ee5 n\u00e0o sau khi ng\u1eaft ngu\u1ed3n cung c\u1ea5p.<\/p>\n

Chi\u1ec1u r\u1ed9ng c\u1ee7a b\u1ed9 ng\u1eaft m\u1ea1ch Ray DIN theo s\u1ed1 c\u1ef1c l\u00e0 bao nhi\u00eau?<\/h3>\n

Chi\u1ec1u r\u1ed9ng c\u1ee7a b\u1ed9 ng\u1eaft m\u1ea1ch Ray DIN m\u1ed9t c\u1ef1c l\u00e0 17,5 mm t\u01b0\u01a1ng \u0111\u01b0\u01a1ng m\u1ed9t m\u00f4-\u0111un. B\u1ed9 ng\u1eaft m\u1ea1ch hai c\u1ef1c s\u1ebd l\u00e0 35 mm, b\u1ed9 ng\u1eaft m\u1ea1ch ba c\u1ef1c s\u1ebd l\u00e0 52,5 mm v\u00e0 b\u1ed9 ng\u1eaft m\u1ea1ch b\u1ed1n c\u1ef1c s\u1ebd l\u00e0 70 mm. RCBO m\u1ed9t m\u00f4-\u0111un s\u1ebd c\u00f3 c\u00f9ng k\u00edch th\u01b0\u1edbc 17,5 mm nh\u01b0 c\u00e1c lo\u1ea1i b\u1ed9 ng\u1eaft m\u1ea1ch kh\u00e1c. Phi\u00ean b\u1ea3n hai m\u00f4-\u0111un s\u1ebd l\u00e0 35 mm.<\/p>\n

L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc Ray DIN?<\/h3>\n

\u0110\u1ec3 x\u00e1c \u0111\u1ecbnh k\u00edch th\u01b0\u1edbc v\u1ecf CMX, b\u1ea1n nh\u00e2n s\u1ed1 l\u01b0\u1ee3ng m\u00f4-\u0111un c\u1ea7n thi\u1ebft v\u1edbi 17,5 mm; ph\u00e9p t\u00ednh n\u00e0y cho b\u1ea1n chi\u1ec1u cao s\u1eed d\u1ee5ng t\u1ed5ng c\u1ed9ng c\u1ee7a v\u1ecf. B\u1ea1n th\u00eam m\u1ed9t 10-15% b\u1ed5 sung v\u00e0o \u0111\u00e1y b\u1ea3ng \u0111\u1ec3 d\u1ef1 ph\u00f2ng cho c\u00e1c m\u1ea1ch t\u01b0\u01a1ng lai. Chi\u1ec1u cao ray s\u1eed d\u1ee5ng tr\u00ean CMX 12 l\u1ed1i \u0111i kho\u1ea3ng 210 mm khi v\u1ecf r\u1ed9ng kho\u1ea3ng 250 mm.<\/p>\n

Ray DIN c\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng theo c\u00f9ng m\u1ed9t c\u00e1ch \u1edf t\u1ea5t c\u1ea3 c\u00e1c qu\u1ed1c gia kh\u00f4ng?<\/h3>\n

Kho\u1ea3ng 35 mm thanh DIN c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng l\u00e0 ti\u00eau chu\u1ea9n tr\u00ean h\u1ea7u h\u1ebft c\u00e1c qu\u1ed1c gia theo IEC 60715. S\u1ef1 kh\u00e1c bi\u1ec7t ch\u00ednh gi\u1eefa c\u00e1c qu\u1ed1c gia l\u00e0 do l\u1ecbch s\u1eed \u2013 c\u00e1c thi\u1ebft k\u1ebf trung t\u00e2m t\u1ea3i d\u00e2n d\u1ee5ng B\u1eafc M\u1ef9 s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng thanh busbar stab-on \u0111\u1ed9c quy\u1ec1n kh\u00f4ng s\u1eed d\u1ee5ng thanh DIN, trong khi c\u00e1c phi\u00ean b\u1ea3n c\u0169 c\u1ee7a b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n M\u1ef9 v\u00e0 Anh \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 l\u00e0m vi\u1ec7c v\u1edbi thanh G-rail 32 mm. C\u00e1c b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n Anh c\u0169 s\u1eed d\u1ee5ng thanh G-rail Anh, trong khi c\u00e1c ki\u1ec3u m\u1edbi h\u01a1n hi\u1ec7n y\u00eau c\u1ea7u b\u1ed9 chuy\u1ec3n \u0111\u1ed5i \u0111\u1ec3 s\u1eed d\u1ee5ng v\u1edbi thi\u1ebft b\u1ecb ki\u1ec3u m\u1edbi.<\/p>\n

C\u00f3 th\u1ec3 l\u1eafp thi\u1ebft b\u1ecb c\u00f3 c\u1ea5u h\u00ecnh n\u1ed5i 15 mm l\u00ean \u0111\u1ebf 7.5 mm kh\u00f4ng?<\/h3>\n

Th\u00f4ng th\u01b0\u1eddng kh\u00f4ng theo c\u00e1ch an to\u00e0n. Thi\u1ebft b\u1ecb kh\u00f4ng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 l\u1eafp tr\u00ean gi\u00e1 \u0111\u1ee1 n\u00f4ng, v\u00e0 c\u00e1c k\u1eb9p g\u1eafn tr\u00ean gi\u00e1 \u0111\u1ee1 s\u00e2u s\u1ebd cho ph\u00e9p di chuy\u1ec3n nhi\u1ec1u h\u01a1n so v\u1edbi gi\u00e1 \u0111\u1ee1 n\u00f4ng c\u00f3 th\u1ec3 ch\u1ee9a; do \u0111\u00f3, thi\u1ebft b\u1ecb ng\u1ed3i l\u1ecfng l\u1ebbo v\u00e0 c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng b\u1ecb k\u00e9o ra kh\u1ecfi thanh b\u1edfi m\u1ed9t l\u1ef1c k\u00e9o c\u00e1p. \u0110\u1ec3 \u0111\u1ea3m b\u1ea3o l\u1eafp \u0111\u1eb7t ch\u1eafc ch\u1eafn, lu\u00f4n kh\u1edbp thi\u1ebft b\u1ecb g\u1eafn v\u1edbi c\u1ea5u h\u00ecnh gi\u00e1 \u0111\u1ee1, ho\u1eb7c thay th\u1ebf gi\u00e1 \u0111\u1ee1.<\/p>\n

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