{"id":1805,"date":"2026-06-22T08:35:00","date_gmt":"2026-06-22T08:35:00","guid":{"rendered":"https:\/\/www.haiyanele.com\/?p=1805"},"modified":"2026-07-01T03:36:10","modified_gmt":"2026-07-01T03:36:10","slug":"screw-free-terminal-blocks-guide","status":"publish","type":"post","link":"https:\/\/www.haiyanele.com\/vi\/selection-guide\/screw-free-terminal-blocks-guide\/","title":{"rendered":"B\u1ea1n bi\u1ebft g\u00ec v\u1ec1 Kh\u1ed1i \u0111\u1ea5u cu\u1ed1i kh\u00f4ng v\u00edt?"},"content":{"rendered":"

Kh\u1ed1i \u0111\u1ea5u cu\u1ed1i d\u1ea1ng v\u00edt \u0111\u00e3 l\u00e0 ph\u01b0\u01a1ng ph\u00e1p k\u1ebft n\u1ed1i m\u1eb7c \u0111\u1ecbnh trong c\u00e1c b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n c\u00f4ng nghi\u1ec7p trong nhi\u1ec1u th\u1eadp k\u1ef7 \u2014 \u0111\u00e1ng tin c\u1eady, d\u1ec5 hi\u1ec3u v\u00e0 c\u00f3 s\u1eb5n \u1edf m\u1ecdi n\u01a1i. V\u1ea5n \u0111\u1ec1 ph\u00e1t sinh trong m\u00f4i tr\u01b0\u1eddng rung \u0111\u1ed9ng cao v\u00e0 c\u00e1c ho\u1ea1t \u0111\u1ed9ng l\u1eafp r\u00e1p b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n quy m\u00f4 l\u1edbn: v\u00edt b\u1ecb l\u1ecfng do chu k\u1ef3 nhi\u1ec7t, v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c m\u00f4-men xo\u1eafn th\u1ee7 c\u00f4ng thay \u0111\u1ed5i gi\u1eefa nh\u1eefng ng\u01b0\u1eddi l\u1eafp \u0111\u1eb7t. C\u00f4ng ngh\u1ec7 kh\u00f4ng v\u00edt \u0111\u00e3 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n \u0111\u1ec3 gi\u1ea3i quy\u1ebft c\u1ea3 hai v\u1ea5n \u0111\u1ec1 n\u00e0y. H\u01b0\u1edbng d\u1eabn n\u00e0y ph\u00e2n t\u00edch s\u1ef1 kh\u00e1c bi\u1ec7t v\u1ec1 c\u01a1 h\u1ecdc, d\u1eef li\u1ec7u hi\u1ec7u su\u1ea5t v\u00e0 logic \u1ee9ng d\u1ee5ng \u0111\u1eb1ng sau m\u1ed7i ph\u01b0\u01a1ng ph\u00e1p k\u1ebft n\u1ed1i.<\/p>\n\n\n\n

T\u1ea1i sao C\u00f4ng ngh\u1ec7 kh\u00f4ng v\u00edt \u0111ang thay th\u1ebf c\u00e1c k\u1ebft n\u1ed1i truy\u1ec1n th\u1ed1ng<\/strong><\/h2>\n\n\n\n

Ti\u00eau chu\u1ea9n kh\u1ed1i \u0111\u1ea5u cu\u1ed1i d\u1ea1ng v\u00edt<\/a> k\u1eb9p d\u00e2y d\u1eabn v\u00e0o thanh c\u00e1i b\u1eb1ng c\u00e1ch chuy\u1ec3n \u0111\u1ed5i m\u00f4-men xo\u1eafn quay th\u00e0nh \u00e1p l\u1ef1c tuy\u1ebfn t\u00ednh. S\u1ef1 ph\u1ee5 thu\u1ed9c c\u01a1 h\u1ecdc \u0111\u00f3 t\u1ea1o ra hai ch\u1ebf \u0111\u1ed9 l\u1ed7i: si\u1ebft qu\u00e1 l\u1ecfng g\u00e2y ra h\u1ed3 quang; si\u1ebft qu\u00e1 ch\u1eb7t l\u00e0m \u0111\u1ee9t c\u00e1c s\u1ee3i \u0111\u1ed3ng. Trong t\u1ee7 \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 \u0111\u01b0\u1eddng s\u1eaft ho\u1eb7c b\u1ea3ng chuy\u1ec3n m\u1ea1ch ngo\u00e0i kh\u01a1i ti\u1ebfp x\u00fac v\u1edbi va \u0111\u1eadp c\u01a1 h\u1ecdc li\u00ean t\u1ee5c, ngay c\u1ea3 c\u00e1c v\u00edt \u0111\u01b0\u1ee3c si\u1ebft \u0111\u00fang c\u00e1ch c\u0169ng b\u1ecb l\u1ecfng theo th\u1eddi gian \u2014 y\u00eau c\u1ea7u si\u1ebft l\u1ea1i theo l\u1ecbch tr\u00ecnh l\u00e0m t\u0103ng chi ph\u00ed b\u1ea3o tr\u00ec trong su\u1ed1t v\u00f2ng \u0111\u1eddi c\u1ee7a h\u1ec7 th\u1ed1ng l\u1eafp \u0111\u1eb7t.<\/p>\n\n\n\n

Kh\u1ed1i \u0111\u1ea5u cu\u1ed1i kh\u00f4ng v\u00edt s\u1eed d\u1ee5ng c\u01a1 ch\u1ebf l\u00f2 xo \u0111\u01b0\u1ee3c n\u1ea1p tr\u01b0\u1edbc \u0111\u1ec3 duy tr\u00ec \u00e1p l\u1ef1c k\u1eb9p kh\u00f4ng \u0111\u1ed5i b\u1ea5t k\u1ec3 rung \u0111\u1ed9ng, gi\u00e3n n\u1edf nhi\u1ec7t ho\u1eb7c m\u1ee9c \u0111\u1ed9 k\u1ef9 n\u0103ng c\u1ee7a ng\u01b0\u1eddi l\u1eafp \u0111\u1eb7t. L\u00f2 xo t\u1ef1 \u0111\u1ed9ng \u0111i\u1ec1u ch\u1ec9nh khi d\u00e2y d\u1eabn \u0111\u1ed3ng gi\u00e3n n\u1edf v\u00e0 co l\u1ea1i qua c\u00e1c chu k\u1ef3 nhi\u1ec7t \u0111\u1ed9. V\u00ec l\u00fd do n\u00e0y, c\u00e1c kh\u1ed1i \u0111\u1ea5u cu\u1ed1i kh\u00f4ng v\u00edt kh\u00f4ng c\u1ea7n b\u1ea3o tr\u00ec trong su\u1ed1t v\u00f2ng \u0111\u1eddi d\u1ecbch v\u1ee5 \u0111\u1ea7y \u0111\u1ee7 c\u1ee7a b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n. <\/p>\n\n\n\n

Hai lo\u1ea1i kh\u1ed1i \u0111\u1ea5u cu\u1ed1i kh\u00f4ng v\u00edt<\/strong><\/h2>\n\n\n\n

Kh\u1ed1i \u0111\u1ea5u cu\u1ed1i d\u1ea1ng k\u1eb9p l\u00f2 xo<\/strong><\/h3>\n\n\n\n
\"Kh\u1ed1i<\/figure>\n\n\n\n

Thi\u1ebft k\u1ebf k\u1eb9p l\u00f2 xo s\u1eed d\u1ee5ng l\u00f2 xo th\u00e9p kh\u00f4ng g\u1ec9 \u0111\u1ec3 \u00e9p d\u00e2y v\u00e0o thanh c\u00e1i \u0111\u1ed3ng m\u1ea1 thi\u1ebfc. L\u1ef1c k\u1eb9p duy tr\u00ec \u1ed5n \u0111\u1ecbnh b\u1ea5t k\u1ec3 k\u1ef9 thu\u1eadt c\u1ee7a ng\u01b0\u1eddi l\u1eafp \u0111\u1eb7t \u2014 m\u1ed9t l\u1ee3i th\u1ebf quan tr\u1ecdng trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng l\u1eafp r\u00e1p b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n l\u1edbn, n\u01a1i h\u00e0ng ch\u1ee5c k\u1ef9 thu\u1eadt vi\u00ean l\u00e0m vi\u1ec7c \u0111\u1ed3ng th\u1eddi v\u00e0 s\u1ef1 bi\u1ebfn \u0111\u1ed5i m\u00f4-men xo\u1eafn l\u00e0 kh\u00f4ng th\u1ec3 tr\u00e1nh kh\u1ecfi. C\u00e1c \u1ee9ng d\u1ee5ng \u0111\u01b0\u1eddng s\u1eaft v\u00e0 h\u00e0ng h\u1ea3i ch\u1ec9 \u0111\u1ecbnh kh\u1ed1i \u0111\u1ea5u cu\u1ed1i d\u1ea1ng k\u1eb9p l\u00f2 xo<\/a> \u0111\u1eb7c bi\u1ec7t v\u00ec va \u0111\u1eadp c\u01a1 h\u1ecdc l\u00e0 \u0111i\u1ec1u ki\u1ec7n ho\u1ea1t \u0111\u1ed9ng h\u00e0ng ng\u00e0y, kh\u00f4ng ph\u1ea3i l\u00e0 tr\u01b0\u1eddng h\u1ee3p ngo\u1ea1i l\u1ec7.<\/p>\n\n\n\n

Kh\u1ed1i \u0111\u1ea5u cu\u1ed1i d\u1ea1ng \u0111\u1ea9y v\u00e0o<\/strong><\/h3>\n\n\n\n
\"Kh\u1ed1i<\/figure>\n\n\n\n

C\u00f4ng ngh\u1ec7 \u0111\u1ea9y v\u00e0o cho ph\u00e9p d\u00e2y d\u1eabn c\u1ee9ng ho\u1eb7c c\u00f3 \u0111\u1ea7u cos \u0111\u01b0\u1ee3c c\u1eafm tr\u1ef1c ti\u1ebfp v\u00e0o kh\u1ed1i \u0111\u1ea5u cu\u1ed1i m\u00e0 kh\u00f4ng c\u1ea7n m\u1edf k\u1eb9p. Kh\u00f4ng c\u1ea7n d\u1ee5ng c\u1ee5 cho d\u00e2y c\u1ee9ng \u2014 d\u00e2y d\u1eabn \u0111\u01b0\u1ee3c \u0111\u1eb7t v\u00e0 kh\u00f3a trong m\u1ed9t chuy\u1ec3n \u0111\u1ed9ng. \u0110i\u1ec1u n\u00e0y c\u1eaft gi\u1ea3m th\u1eddi gian k\u1ebft n\u1ed1i t\u1edbi 50% so v\u1edbi ph\u01b0\u01a1ng ph\u00e1p s\u1eed d\u1ee5ng v\u00edt, \u0111i\u1ec1u n\u00e0y quan tr\u1ecdng khi m\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n duy nh\u1ea5t ch\u1ee9a h\u00e0ng tr\u0103m \u0111i\u1ec3m k\u1ebft n\u1ed1i. HYJXH<\/a> s\u1ea3n xu\u1ea5t 2 tri\u1ec7u \u0111\u1ea7u n\u1ed1i kh\u1ed1i \u0111\u1ea5u cu\u1ed1i<\/a> h\u00e0ng n\u0103m \u0111\u1ec3 h\u1ed7 tr\u1ee3 nhu c\u1ea7u ng\u00e0y c\u00e0ng t\u0103ng n\u00e0y tr\u00ean c\u00e1c \u1ee9ng d\u1ee5ng n\u0103ng l\u01b0\u1ee3ng m\u1eb7t tr\u1eddi, l\u01b0u tr\u1eef v\u00e0 \u0111i\u1ec1u khi\u1ec3n c\u00f4ng nghi\u1ec7p.<\/p>\n\n\n\n

M\u1ed9t bi\u1ebfn th\u1ec3 c\u1eafm d\u1ea1ng kh\u1ed1i \u0111\u1ea7u cu\u1ed1i v\u00edt k\u1ebft h\u1ee3p t\u00ednh m\u00f4-\u0111un c\u1ee7a c\u00e1c \u0111\u1ea7u n\u1ed1i c\u00f3 th\u1ec3 c\u1eafm v\u1edbi k\u1eb9p ki\u1ec3u v\u00edt \u2014 cho ph\u00e9p c\u00e1c d\u00e2y n\u1ed1i \u0111\u01b0\u1ee3c n\u1ed1i s\u1eb5n k\u1ebft n\u1ed1i t\u1ea1i m\u1ed9t \u0111\u1ea7u n\u1ed1i trong qu\u00e1 tr\u00ecnh l\u1eafp \u0111\u1eb7t, gi\u1ea3m th\u1eddi gian l\u1eafp r\u00e1p t\u1ea1i ch\u1ed7 m\u00e0 kh\u00f4ng l\u00e0m gi\u1ea3m \u00e1p l\u1ef1c ti\u1ebfp x\u00fac.<\/p>\n\n\n\n