{"id":2292,"date":"2026-09-09T09:31:19","date_gmt":"2026-09-09T09:31:19","guid":{"rendered":"https:\/\/www.haiyanele.com\/?p=2292"},"modified":"2026-10-09T03:02:05","modified_gmt":"2026-10-09T03:02:05","slug":"how-to-choose-high-current-terminal-blocks-current-rating-cable-size-conductor-material-and-mounting","status":"publish","type":"post","link":"https:\/\/www.haiyanele.com\/vi\/blog\/terminal-block\/how-to-choose-high-current-terminal-blocks-current-rating-cable-size-conductor-material-and-mounting\/","title":{"rendered":"C\u00e1ch ch\u1ecdn kh\u1ed1i \u0111\u1ea7u cu\u1ed1i d\u00f2ng \u0111i\u1ec7n cao: \u0110\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n, k\u00edch th\u01b0\u1edbc c\u00e1p, v\u1eadt li\u1ec7u d\u00e2y d\u1eabn v\u00e0 l\u1eafp \u0111\u1eb7t"},"content":{"rendered":"

Tr\u1ea3 l\u1eddi nhanh<\/strong><\/h2>\n\n\n\n

Kh\u1ed1i \u0111\u1ea5u cu\u1ed1i d\u00f2ng \u0111i\u1ec7n cao n\u00ean \u0111\u01b0\u1ee3c l\u1ef1a ch\u1ecdn b\u1eb1ng c\u00e1ch kh\u1edbp \u0111\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n v\u00e0 \u0111i\u1ec7n \u00e1p, k\u00edch th\u01b0\u1edbc c\u00e1p, v\u1eadt li\u1ec7u d\u00e2y d\u1eabn, ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t v\u00e0 h\u1ec7 th\u1ed1ng k\u1ebft n\u1ed1i. S\u1ef1 k\u1ebft h\u1ee3p ph\u00f9 h\u1ee3p gi\u00fap ng\u0103n ng\u1eeba qu\u00e1 nhi\u1ec7t, k\u1eb9p k\u00e9m, l\u00e0m l\u1ea1i v\u00e0 ch\u1eadm tr\u1ec5 v\u1eadn h\u00e0nh.<\/p>\n\n\n\n

\u0110\u1ed1i v\u1edbi d\u00e2y d\u1eabn l\u1edbn, Haiyan s\u1eed d\u1ee5ng nh\u1ef1a k\u1ef9 thu\u1eadt gia c\u1ed1 v\u00e0 k\u1eb9p kh\u00f3a t\u1ea1i c\u00e1c \u0111\u1ea7u cu\u1ed1i d\u00f2ng \u0111i\u1ec7n cao c\u1ee7a m\u00ecnh. C\u00e1c t\u00f9y ch\u1ecdn l\u1eafp ray DIN v\u00e0 l\u1eafp b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n c\u0169ng \u0111\u01b0\u1ee3c cung c\u1ea5p cho c\u00e1c b\u1ed1 tr\u00ed t\u1ee7 kh\u00e1c nhau. Do \u0111\u00f3, c\u00f3 th\u1ec3 c\u1ea5u h\u00ecnh thi\u1ebft k\u1ebf \u0111\u1ea7u cu\u1ed1i v\u00e0 ki\u1ec3u l\u1eafp \u0111\u1eb7t theo kh\u00f4ng gian t\u1ee7 c\u00f3 s\u1eb5n, k\u00edch th\u01b0\u1edbc d\u00e2y d\u1eabn v\u00e0 ph\u01b0\u01a1ng ph\u00e1p k\u1ebft n\u1ed1i.<\/p>\n\n\n\n

X\u00e1c \u0111\u1ecbnh \u0111\u1ecbnh m\u1ee9c D\u00f2ng \u0111i\u1ec7n v\u00e0 \u0110i\u1ec7n \u00e1p C\u1ea7n thi\u1ebft<\/strong><\/h2>\n\n\n\n

Thay v\u00ec ch\u1ecdn \u0111\u1ea7u cu\u1ed1i theo k\u00edch th\u01b0\u1edbc c\u00e1p, quy tr\u00ecnh n\u00ean b\u1eaft \u0111\u1ea7u v\u1edbi t\u1ea3i d\u1ef1 ki\u1ebfn tr\u00ean m\u1ea1ch v\u00e0 \u0111\u1ecbnh m\u1ee9c \u0111i\u1ec7n \u00e1p c\u1ee7a kh\u1ed1i \u0111\u1ea7u cu\u1ed1i<\/a>. \u0110i\u1ec1u n\u00e0y l\u00e0 do c\u00e1c k\u1ebft n\u1ed1i d\u00f2ng \u0111i\u1ec7n cao c\u00f3 xu h\u01b0\u1edbng ho\u1ea1t \u0111\u1ed9ng \u1edf nhi\u1ec7t \u0111\u1ed9 cao h\u01a1n khi nhi\u1ec1u m\u1ea1ch \u0111\u01b0\u1ee3c t\u1ea3i \u0111\u01b0\u1ee3c l\u1eafp r\u00e1p trong m\u1ed9t t\u1ee7.<\/p>\n\n\n\n

Ki\u1ec3m tra \u0111\u1ecbnh m\u1ee9c c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t v\u00e0 \u0111i\u1ec1u ki\u1ec7n l\u1eafp \u0111\u1eb7t tr\u01b0\u1edbc khi ph\u00ea duy\u1ec7t. \u0110\u1ecbnh m\u1ee9c d\u00f2ng \u0111i\u1ec7n c\u1ee7a kh\u1ed1i \u0111\u1ea5u cu\u1ed1i ch\u1ec9 h\u1eefu \u00edch khi d\u00e2y d\u1eabn, h\u1ec7 th\u1ed1ng k\u1eb9p v\u00e0 vi\u1ec7c l\u1eafp \u0111\u1eb7t xung quanh c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng trong gi\u1edbi h\u1ea1n quy \u0111\u1ecbnh. \u0110\u1ed1i v\u1edbi c\u00e1c kh\u1ed1i \u0111\u1ea5u cu\u1ed1i b\u1eb1ng \u0111\u1ed3ng d\u00e0nh cho m\u1ee5c \u0111\u00edch c\u00f4ng nghi\u1ec7p ho\u1eb7c t\u01b0\u01a1ng t\u1ef1, IEC 60947-7-1:2025 quy \u0111\u1ecbnh c\u00e1c y\u00eau c\u1ea7u \u0111\u1ed1i v\u1edbi kh\u1ed1i \u0111\u1ea5u cu\u1ed1i v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn k\u1eb9p c\u1ee7a ch\u00fang.<\/p>\n\n\n\n

Gh\u00e9p n\u1ed1i Kh\u1ed1i \u0111\u1ea5u cu\u1ed1i v\u1edbi K\u00edch th\u01b0\u1edbc C\u00e1p<\/strong><\/h2>\n\n\n\n

Gh\u00e9p n\u1ed1i ph\u1ea1m vi d\u00e2y d\u1eabn c\u1ee7a \u0111\u1ea7u cu\u1ed1i v\u1edbi ti\u1ebft di\u1ec7n c\u00e1p th\u1ef1c t\u1ebf v\u00e0 ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ea5u cu\u1ed1i. M\u1ed9t d\u00e2y d\u1eabn v\u1eeba kh\u00edt c\u00f3 th\u1ec3 kh\u00f3 \u0111\u1eb7t \u0111\u00fang c\u00e1ch, trong khi ph\u1ea1m vi k\u1eb9p kh\u00f4ng ph\u00f9 h\u1ee3p c\u00f3 th\u1ec3 \u0111\u1ec3 l\u1ea1i di\u1ec7n t\u00edch ti\u1ebfp x\u00fac kh\u00f4ng \u0111\u1ee7 v\u00e0 t\u0103ng \u0111i\u1ec7n tr\u1edf t\u1ea1i k\u1ebft n\u1ed1i.<\/p>\n\n\n

\n
\"L\u1ef1a<\/figure>\n<\/div>\n\n\n

\u0110\u1ed1i v\u1edbi c\u00e1p l\u1edbn, h\u00e3y ki\u1ec3m tra chi\u1ec1u d\u00e0i tu\u1ed1t v\u1ecf, \u0111\u1ea7u v\u00e0o d\u00e2y d\u1eabn, kh\u00f4ng gian u\u1ed1n cong v\u00e0 li\u1ec7u c\u00f3 \u0111\u01b0\u1ee3c ph\u00e9p s\u1eed d\u1ee5ng \u0111\u1ea7u cos ho\u1eb7c chu\u1ea9n b\u1ecb kh\u00e1c hay kh\u00f4ng. Kh\u00f4ng ch\u1ec9 ch\u1ecdn theo \u0111\u01b0\u1eddng k\u00ednh c\u00e1p danh ngh\u0129a; ph\u1ea1m vi d\u00e2y d\u1eabn \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh c\u1ee7a \u0111\u1ea7u cu\u1ed1i n\u00ean ki\u1ec3m so\u00e1t quy\u1ebft \u0111\u1ecbnh.<\/p>\n\n\n\n

Ki\u1ec3m tra V\u1eadt li\u1ec7u D\u00e2y d\u1eabn: \u0110\u1ed3ng, Nh\u00f4m ho\u1eb7c Cu\/Al<\/strong><\/h2>\n\n\n\n

X\u00e1c nh\u1eadn xem \u0111\u1ea7u cu\u1ed1i c\u00f3 \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t cho \u0111\u1ed3ng, nh\u00f4m hay c\u1ea3 hai tr\u01b0\u1edbc khi \u0111\u1eb7t h\u00e0ng hay kh\u00f4ng. \u0110\u1ed3ng v\u00e0 nh\u00f4m c\u00f3 c\u00e1c \u0111\u1eb7c t\u00ednh c\u01a1 h\u1ecdc v\u00e0 \u0111i\u1ec7n kh\u00e1c nhau, v\u00ec v\u1eady m\u1ed9t \u0111\u1ea7u cu\u1ed1i ch\u1ec9 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho \u0111\u1ed3ng kh\u00f4ng n\u00ean \u0111\u01b0\u1ee3c coi l\u00e0 ph\u00f9 h\u1ee3p cho d\u00e2y d\u1eabn nh\u00f4m.<\/p>\n\n\n

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\"Kh\u1ea3<\/figure>\n<\/div>\n\n\n

\u0110\u1ed1i v\u1edbi c\u00e1c k\u1ebft n\u1ed1i nh\u00f4m ho\u1eb7c h\u1ed7n h\u1ee3p Cu\/Al, h\u00e3y x\u00e1c minh kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch, chu\u1ea9n b\u1ecb d\u00e2y d\u1eabn, y\u00eau c\u1ea7u m\u00f4-men xo\u1eafn v\u00e0 b\u1ea5t k\u1ef3 h\u1ee3p ch\u1ea5t n\u1ed1i ho\u1eb7c x\u1eed l\u00fd b\u1ec1 m\u1eb7t n\u00e0o \u0111\u01b0\u1ee3c nh\u00e0 s\u1ea3n xu\u1ea5t n\u00eau r\u00f5. M\u1ed9t \u0111i\u1ec3m l\u1ed7i ti\u1ec1m \u1ea9n l\u00e0 m\u1ed9t k\u1ebft n\u1ed1i v\u1eeba v\u1eb7n v\u1ec1 m\u1eb7t c\u01a1 h\u1ecdc nh\u01b0ng kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t cho v\u1eadt li\u1ec7u d\u00e2y d\u1eabn.<\/p>\n\n\n\n

So s\u00e1nh Ph\u01b0\u01a1ng ph\u00e1p L\u1eafp \u0111\u1eb7t v\u00e0 K\u1ebft n\u1ed1i<\/strong><\/h2>\n\n\n\n

Ch\u1ecdn h\u1ec7 th\u1ed1ng l\u1eafp \u0111\u1eb7t theo b\u1ed1 tr\u00ed t\u1ee7, kh\u00f4ng gian c\u00f3 s\u1eb5n, kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn d\u1ecbch v\u1ee5 v\u00e0 h\u1ed7 tr\u1ee3 c\u01a1 h\u1ecdc c\u1ea7n thi\u1ebft. M\u1ed9t kh\u1ed1i \u0111\u1ea5u cu\u1ed1i ch\u1ecbu t\u1ea3i n\u1eb7ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng Ray DIN<\/a> ho\u1eb7c l\u1eafp b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n, t\u00f9y thu\u1ed9c v\u00e0o thi\u1ebft k\u1ebf v\u00e0 \u1ee9ng d\u1ee5ng \u0111\u01b0\u1ee3c nh\u00e0 s\u1ea3n xu\u1ea5t ch\u1ec9 \u0111\u1ecbnh.<\/p>\n\n\n\n

Ph\u01b0\u01a1ng ph\u00e1p k\u1ebft n\u1ed1i c\u0169ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn quy tr\u00ecnh l\u00e0m vi\u1ec7c l\u1eafp \u0111\u1eb7t. K\u1eb9p v\u00edt<\/a> cung c\u1ea5p m\u1ed9t b\u01b0\u1edbc si\u1ebft ch\u1eb7t x\u00e1c \u0111\u1ecbnh v\u00e0 y\u00eau c\u1ea7u ki\u1ec3m so\u00e1t m\u00f4-men xo\u1eafn ch\u00ednh x\u00e1c; h\u1ec7 th\u1ed1ng l\u00f2 xo ho\u1eb7c k\u1eb9p kh\u00e1c c\u00f3 th\u1ec3 gi\u1ea3m c\u00f4ng vi\u1ec7c si\u1ebft ch\u1eb7t l\u1ea1i, nh\u01b0ng \u0111\u1ea7u cu\u1ed1i v\u1eabn ph\u1ea3i \u0111\u01b0\u1ee3c ch\u1ecdn cho d\u00e2y d\u1eabn v\u00e0 \u1ee9ng d\u1ee5ng.<\/p>\n\n\n\n

Y\u1ebfu t\u1ed1 l\u1ef1a ch\u1ecdn<\/strong><\/th>Nh\u1eefng \u0111i\u1ec1u c\u1ea7n x\u00e1c minh<\/strong><\/th>T\u1ea1i sao n\u00f3 quan tr\u1ecdng<\/strong><\/th><\/tr><\/thead>
L\u1eafp r\u00e1p<\/strong><\/td>L\u1eafp ray DIN ho\u1eb7c l\u1eafp b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n<\/td>X\u00e1c nh\u1eadn s\u1ef1 ph\u00f9 h\u1ee3p v\u1edbi t\u1ee7 v\u00e0 kh\u1ea3 n\u0103ng ti\u1ebfp c\u1eadn d\u1ecbch v\u1ee5<\/td><\/tr>
Ph\u01b0\u01a1ng ph\u00e1p k\u1ebft n\u1ed1i<\/strong><\/td>H\u1ec7 th\u1ed1ng k\u1eb9p v\u00edt, l\u00f2 xo ho\u1eb7c \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t<\/td>X\u00e1c \u0111\u1ecbnh c\u00e1c y\u00eau c\u1ea7u \u0111\u1ea5u cu\u1ed1i v\u00e0 ki\u1ec3m tra<\/td><\/tr>
Ph\u1ea1m vi c\u00e1p<\/strong><\/td>Ti\u1ebft di\u1ec7n v\u00e0 chu\u1ea9n b\u1ecb d\u00e2y d\u1eabn th\u1ef1c t\u1ebf<\/td>\u0110\u1ea3m b\u1ea3o \u0111\u1eb7t d\u00e2y d\u1eabn v\u00e0 k\u1eb9p \u0111\u00fang c\u00e1ch<\/td><\/tr>
Kh\u1ea3 n\u0103ng t\u01b0\u01a1ng th\u00edch v\u1eadt li\u1ec7u<\/strong><\/td>Ph\u00ea duy\u1ec7t cho \u0111\u1ed3ng, nh\u00f4m ho\u1eb7c Cu\/Al<\/td>Ng\u0103n ng\u1eeba c\u00e1c k\u1ebft h\u1ee3p d\u00e2y d\u1eabn-\u0111\u1ea7u cu\u1ed1i kh\u00f4ng t\u01b0\u01a1ng th\u00edch<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Xem x\u00e9t \u0110\u1ed9 t\u0103ng Nhi\u1ec7t \u0111\u1ed9, M\u00f4-men xo\u1eafn v\u00e0 \u0110\u1ed9 tin c\u1eady D\u00e0i h\u1ea1n<\/strong><\/h2>\n\n\n\n

C\u00e1c k\u1ebft n\u1ed1i d\u00f2ng \u0111i\u1ec7n cao n\u00ean \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 v\u1ec1 nhi\u1ec7t, \u0111\u1ed9 an to\u00e0n c\u01a1 h\u1ecdc v\u00e0 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh ti\u1ebfp x\u00fac d\u00e0i h\u1ea1n, kh\u00f4ng ch\u1ec9 v\u1ec1 t\u00ednh li\u00ean t\u1ee5c ban \u0111\u1ea7u. Tu\u00e2n theo m\u00f4-men xo\u1eafn si\u1ebft ch\u1eb7t \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh cho c\u00e1c \u0111\u1ea7u cu\u1ed1i v\u00edt v\u00e0 s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p l\u1eafp \u0111\u1eb7t c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t; si\u1ebft qu\u00e1 ch\u1eb7t c\u00f3 th\u1ec3 l\u00e0m h\u1ecfng c\u00e1c b\u1ed9 ph\u1eadn, trong khi si\u1ebft qu\u00e1 l\u1ecfng c\u00f3 th\u1ec3 l\u00e0m t\u0103ng \u0111i\u1ec7n tr\u1edf ti\u1ebfp x\u00fac.<\/p>\n\n\n\n

Trong qu\u00e1 tr\u00ecnh v\u1eadn h\u00e0nh, h\u00e3y ki\u1ec3m tra vi\u1ec7c \u0111\u1eb7t d\u00e2y d\u1eabn, t\u00ecnh tr\u1ea1ng \u0111\u1ea7u cu\u1ed1i, n\u1eafp b\u1ea3o v\u1ec7 v\u00e0 c\u00e1c b\u1ed9 ph\u1eadn c\u1ed1 \u0111\u1ecbnh c\u00f3 th\u1ec3 ti\u1ebfp c\u1eadn tr\u01b0\u1edbc khi c\u1ea5p \u0111i\u1ec7n. N\u1ebfu m\u1ed9t k\u1ebft n\u1ed1i sau \u0111\u00f3 c\u00f3 d\u1ea5u hi\u1ec7u \u0111\u1ed5i m\u00e0u, n\u00f3ng b\u1ea5t th\u01b0\u1eddng ho\u1eb7c c\u00e1c v\u1ea5n \u0111\u1ec1 s\u1ee5t \u00e1p l\u1eb7p \u0111i l\u1eb7p l\u1ea1i, h\u00e3y coi \u0111\u00f3 l\u00e0 v\u1ea5n \u0111\u1ec1 \u0111\u1ea5u cu\u1ed1i ti\u1ec1m \u1ea9n v\u00e0 ki\u1ec3m tra vi\u1ec7c l\u1eafp \u0111\u1eb7t thay v\u00ec ch\u1ec9 si\u1ebft ch\u1eb7t l\u1ea1i.<\/p>\n\n\n\n

Danh s\u00e1ch Ki\u1ec3m tra L\u1ef1a ch\u1ecdn Kh\u1ed1i \u0111\u1ea5u cu\u1ed1i D\u00f2ng \u0111i\u1ec7n Cao<\/strong><\/h2>\n\n\n\n

Tr\u01b0\u1edbc khi ph\u00ea duy\u1ec7t m\u1ed9t \u0111\u1ea7u cu\u1ed1i, h\u00e3y x\u00e1c nh\u1eadn:<\/p>\n\n\n\n