{"id":16220,"date":"2026-09-23T00:44:05","date_gmt":"2026-09-23T00:44:05","guid":{"rendered":"https:\/\/www.hndfcrane.com\/?post_type=posts&#038;p=16220"},"modified":"2026-10-08T08:59:39","modified_gmt":"2026-10-08T08:59:39","slug":"overhead-crane-wire-rope-common-types-and-safety-requirements","status":"publish","type":"posts","link":"https:\/\/www.hndfcrane.com\/vi\/posts\/overhead-crane-wire-rope-common-types-and-safety-requirements\/","title":{"rendered":"D\u00e2y c\u00e1p th\u00e9p d\u00f9ng cho c\u1ea7n c\u1ea9u tr\u00ean cao: C\u00e1c lo\u1ea1i ph\u1ed5 bi\u1ebfn v\u00e0 y\u00eau c\u1ea7u an to\u00e0n"},"content":{"rendered":"<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><p>M\u1ee5c l\u1ee5c<\/p><nav><ul><li><a href=\"#purpose-and-construction-of-the-overhead-crane-wire-rope\">M\u1ee5c \u0111\u00edch v\u00e0 c\u1ea5u t\u1ea1o c\u1ee7a d\u00e2y c\u00e1p th\u00e9p c\u1ea7n c\u1ea9u tr\u00ean cao<\/a><\/li><li><a href=\"#classification-of-the-overhead-crane-wire-rope\">Ph\u00e2n lo\u1ea1i d\u00e2y c\u00e1p c\u1ee7a c\u1ea7n c\u1ea9u tr\u00ean cao<\/a><ul><li><a href=\"#1-classification-by-number-of-twisting-operations\">1. Ph\u00e2n lo\u1ea1i theo s\u1ed1 l\u1ea7n xo\u1eafn<\/a><\/li><li><a href=\"#2-classification-by-lay-direction\">2. Ph\u00e2n lo\u1ea1i theo h\u01b0\u1edbng th\u00f4ng th\u01b0\u1eddng<\/a><\/li><li><a href=\"#3-classification-by-lay-type\">3. Ph\u00e2n lo\u1ea1i theo lo\u1ea1i ng\u01b0\u1eddi b\u00ecnh th\u01b0\u1eddng<\/a><\/li><li><a href=\"#4-classification-by-wire-contact-condition\">4. Ph\u00e2n lo\u1ea1i theo t\u00ecnh tr\u1ea1ng ti\u1ebfp x\u00fac d\u00e2y d\u1eabn<\/a><\/li><li><a href=\"#5-non-standard-steel-wire-ropes\">5. D\u00e2y c\u00e1p th\u00e9p kh\u00f4ng ti\u00eau chu\u1ea9n<\/a><\/li><li><a href=\"#6-low-rotation-ropes-and-non-rotating-ropes\">6. D\u00e2y th\u1eebng c\u00f3 \u0111\u1ed9 xoay th\u1ea5p v\u00e0 d\u00e2y th\u1eebng kh\u00f4ng xoay<\/a><\/li><\/ul><\/li><li><a href=\"#safety-technical-requirements-for-overhead-crane-wire-rope-use\">C\u00e1c y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt an to\u00e0n \u0111\u1ed1i v\u1edbi vi\u1ec7c s\u1eed d\u1ee5ng d\u00e2y c\u00e1p th\u00e9p tr\u00ean c\u1ea7n c\u1ea9u tr\u00ean cao.<\/a><\/li><li><a href=\"#overhead-crane-wire-rope-inspection-and-maintenance-requirements\">Y\u00eau c\u1ea7u ki\u1ec3m tra v\u00e0 b\u1ea3o d\u01b0\u1ee1ng d\u00e2y c\u00e1p c\u1ea7n c\u1ea9u tr\u00ean cao<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<p>Trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng n\u00e2ng h\u1ea1, d\u00e2y c\u00e1p c\u1ee7a c\u1ea7n c\u1ea9u tr\u00ean cao l\u00e0 &quot;d\u00e2y s\u1ed1ng&quot;. N\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn an to\u00e0n n\u00e2ng h\u1ea1, s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a thi\u1ebft b\u1ecb v\u00e0 an to\u00e0n c\u1ee7a ng\u01b0\u1eddi v\u1eadn h\u00e0nh. N\u1ebfu l\u1ef1a ch\u1ecdn kh\u00f4ng \u0111\u00fang c\u00e1ch, b\u1ea3o tr\u00ec k\u00e9m ho\u1eb7c s\u1eed d\u1ee5ng v\u01b0\u1ee3t qu\u00e1 ti\u00eau chu\u1ea9n an to\u00e0n, c\u00e1c tai n\u1ea1n nghi\u00eam tr\u1ecdng nh\u01b0 \u0111\u1ee9t d\u00e2y v\u00e0 r\u01a1i v\u1eadt n\u1eb7ng c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng x\u1ea3y ra.<\/p>\n\n\n\n<p>D\u00e2y c\u00e1p th\u00e9p d\u00f9ng tr\u00ean c\u1ea7n c\u1ea9u ph\u1ea3i tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n GB\/T 20118; trong tr\u01b0\u1eddng h\u1ee3p y\u00eau c\u1ea7u cao h\u01a1n, s\u1ebd s\u1eed d\u1ee5ng d\u00e2y c\u00e1p th\u00e9p tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n GB\/T 8918. Th\u00f4ng th\u01b0\u1eddng, ng\u01b0\u1eddi ta s\u1eed d\u1ee5ng d\u00e2y c\u00e1p th\u00e9p c\u00f3 ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi d\u00e2y c\u00e1p, v\u00e0 h\u1ec7 s\u1ed1 an to\u00e0n c\u1ee7a d\u00e2y c\u00e1p th\u00e9p ph\u1ea3i tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n GB\/T 3811 ho\u1eb7c h\u1ee3p \u0111\u1ed3ng.<\/p>\n\n\n\n<p>Vi\u1ec7c l\u1ef1a ch\u1ecdn d\u00e2y c\u00e1p th\u00e9p \u0111\u01b0\u1ee3c quy\u1ebft \u0111\u1ecbnh d\u1ef1a tr\u00ean ki\u1ec3u d\u00e2y c\u00e1p, \u0111\u1ed9 b\u1ec1n c\u1ee7a d\u00e2y, \u0111\u01b0\u1eddng k\u00ednh d\u00e2y c\u00e1p, v\u1eadt li\u1ec7u l\u00f5i, t\u00ecnh tr\u1ea1ng b\u1ec1 m\u1eb7t d\u00e2y v\u00e0 c\u1ea5p \u0111\u1ed9 d\u00e2y. D\u00e2y c\u00e1p ph\u1ea3i \u0111\u01b0\u1ee3c b\u00f4i tr\u01a1n \u0111\u00fang th\u1eddi gian v\u00e0 \u0111\u00fang c\u00e1ch, v\u00e0 c\u00f3 th\u1ec3 b\u1ed5 sung th\u00eam thi\u1ebft b\u1ecb b\u00f4i tr\u01a1n d\u00e2y c\u00e1p khi c\u1ea7n thi\u1ebft.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"601\" src=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/10\/Overhead-Crane-Wire-Rope.png\" alt=\"\" class=\"wp-image-16276\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"purpose-and-construction-of-the-overhead-crane-wire-rope\">M\u1ee5c \u0111\u00edch v\u00e0 c\u1ea5u t\u1ea1o c\u1ee7a d\u00e2y c\u00e1p th\u00e9p c\u1ea7n c\u1ea9u tr\u00ean cao<\/h2>\n\n\n\n<p>D\u00e2y c\u00e1p th\u00e9p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong c\u00e1c c\u01a1 c\u1ea5u n\u00e2ng h\u1ea1, \u0111i\u1ec1u ch\u1ec9nh g\u00f3c nghi\u00eang v\u00e0 k\u00e9o c\u1ee7a m\u00e1y m\u00f3c n\u00e2ng, v\u00e0 c\u0169ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng bu\u1ed9c, c\u1ed9t v\u00e0 c\u0103ng d\u00e2y.<\/p>\n\n\n\n<p>Theo y\u00eau c\u1ea7u s\u1eed d\u1ee5ng, d\u00e2y c\u00e1p th\u00e9p \u0111\u01b0\u1ee3c chia th\u00e0nh ba c\u1ea5p \u0111\u1ed9 d\u1ef1a tr\u00ean \u0111\u1ed9 b\u1ec1n (s\u1ed1 chu k\u1ef3 u\u1ed1n cong cho ph\u00e9p): d\u00e2y c\u00e1p lo\u1ea1i \u0111\u1eb7c bi\u1ec7t \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho thang m\u00e1y ch\u1edf kh\u00e1ch, d\u00e2y c\u00e1p c\u1ea5p I d\u00f9ng cho c\u1ea7n c\u1ea9u, v\u00e0 d\u00e2y c\u00e1p c\u1ea5p II d\u00f9ng cho c\u00e1c ho\u1ea1t \u0111\u1ed9ng n\u00e2ng h\u1ea1, c\u0103ng v\u00e0 k\u00e9o.<\/p>\n\n\n\n<p>\u0110\u1ec3 ng\u0103n ng\u1eeba \u0103n m\u00f2n, b\u1ec1 m\u1eb7t d\u00e2y c\u00e1p th\u00e9p \u0111\u01b0\u1ee3c m\u1ea1 k\u1ebdm. Theo kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n, d\u00e2y c\u00e1p m\u1ea1 k\u1ebdm \u0111\u01b0\u1ee3c chia th\u00e0nh ba c\u1ea5p \u0111\u1ed9\u2014A, B v\u00e0 C\u2014trong \u0111\u00f3 c\u1ea5p \u0111\u1ed9 A c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n cao nh\u1ea5t.<\/p>\n\n\n\n<p>D\u00e2y c\u00e1p th\u00e9p \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh b\u1eb1ng c\u00e1ch qu\u1ea5n c\u00e1c s\u1ee3i th\u00e9p xung quanh m\u1ed9t l\u00f5i. \u0110\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a d\u00e2y c\u00e1p th\u00e9p d\u00f9ng cho c\u1ea7n c\u1ea9u tr\u00ean cao th\u01b0\u1eddng l\u00e0 1570\u20131960 N\/mm\u00b2; hi\u1ec7n nay, \u0111\u1ec3 l\u00e0m cho tang tr\u1ed1ng v\u00e0 r\u00f2ng r\u1ecdc c\u1ee7a t\u1eddi \u0111i\u1ec7n nh\u1eb9 h\u01a1n v\u00e0 nh\u1ecf g\u1ecdn h\u01a1n, d\u00e2y c\u00e1p th\u00e9p c\u00f3 xu h\u01b0\u1edbng \u0111\u1ea1t \u0111\u1ed9 b\u1ec1n cao h\u01a1n v\u00e0 \u0111\u01b0\u1eddng k\u00ednh nh\u1ecf h\u01a1n, do \u0111\u00f3 \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a d\u00e2y c\u00e1p th\u00e9p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng tr\u00ean t\u1eddi \u0111i\u1ec7n n\u01b0\u1edbc ngo\u00e0i hi\u1ec7n nay ch\u1ee7 y\u1ebfu tr\u00ean 2000 N\/mm\u00b2, gi\u00fap ch\u00fang nh\u1eb9 h\u01a1n v\u00e0 nh\u1ecf g\u1ecdn h\u01a1n \u0111\u00e1ng k\u1ec3.<\/p>\n\n\n\n<p>L\u00f5i c\u00f3 ch\u1ee9c n\u0103ng n\u00e2ng \u0111\u1ee1, \u1ed5n \u0111\u1ecbnh v\u00e0 b\u00f4i tr\u01a1n d\u00e2y c\u00e1p, \u0111\u1ed3ng th\u1eddi t\u0103ng t\u00ednh linh ho\u1ea1t c\u1ee7a n\u00f3. L\u00f5i \u0111\u01b0\u1ee3c chia th\u00e0nh l\u00f5i th\u00e9p (d\u00e2y th\u00e9p ho\u1eb7c d\u00e2y c\u00e1p m\u1ecfng), l\u00f5i h\u1eefu c\u01a1 (l\u00f5i gai d\u1ea7u ho\u1eb7c l\u00f5i s\u1ee3i) v\u00e0 l\u00f5i ami\u0103ng; d\u00e2y c\u00e1p l\u00f5i th\u00e9p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho nhi\u1ec7t \u0111\u1ed9 cao ho\u1eb7c qu\u1ea5n nhi\u1ec1u l\u1edbp.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"classification-of-the-overhead-crane-wire-rope\">Ph\u00e2n lo\u1ea1i d\u00e2y c\u00e1p c\u1ee7a c\u1ea7n c\u1ea9u tr\u00ean cao<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"1-classification-by-number-of-twisting-operations\">1. Ph\u00e2n lo\u1ea1i theo s\u1ed1 l\u1ea7n xo\u1eafn<\/h3>\n\n\n\n<p>C\u00f3 lo\u1ea1i d\u00e2y th\u1eebng m\u1ed9t l\u1edbp v\u00e0 lo\u1ea1i d\u00e2y th\u1eebng hai l\u1edbp.<\/p>\n\n\n\n<ul>\n<li>D\u00e2y th\u1eebng m\u1ed9t l\u1edbp: Lo\u1ea1i d\u00e2y n\u00e0y \u0111\u01b0\u1ee3c xo\u1eafn tr\u1ef1c ti\u1ebfp t\u1eeb c\u00e1c s\u1ee3i th\u00e9p th\u00e0nh d\u00e2y th\u1eebng trong m\u1ed9t thao t\u00e1c duy nh\u1ea5t, kh\u00f4ng qua qu\u00e1 tr\u00ecnh xo\u1eafn c\u00e1c s\u1ee3i th\u00e9p th\u00e0nh t\u1eebng b\u00f3 nh\u1ecf r\u1ed3i m\u1edbi xo\u1eafn c\u00e1c b\u00f3 nh\u1ecf th\u00e0nh d\u00e2y th\u1eebng. N\u00f3 c\u00f3 \u0111\u1ed9 c\u1ee9ng cao v\u00e0 \u0111\u1ed9 d\u1ebbo k\u00e9m, kh\u00f3 u\u1ed1n cong, v\u00e0 ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho d\u00e2y c\u0103ng, d\u00e2y gi\u1eb1ng ho\u1eb7c c\u00e1c \u1ee9ng d\u1ee5ng ch\u1ecbu t\u1ea3i m\u00e0 kh\u00f4ng c\u1ea7n u\u1ed1n cong th\u01b0\u1eddng xuy\u00ean.<\/li>\n\n\n\n<li>D\u00e2y c\u00e1p xo\u1eafn \u0111\u00f4i: C\u00e1c s\u1ee3i th\u00e9p \u0111\u01b0\u1ee3c xo\u1eafn th\u00e0nh t\u1eebng b\u00f3 nh\u1ecf, sau \u0111\u00f3 c\u00e1c b\u00f3 nh\u1ecf n\u00e0y \u0111\u01b0\u1ee3c xo\u1eafn l\u1ea1i th\u00e0nh d\u00e2y c\u00e1p, tr\u1ea3i qua hai c\u00f4ng \u0111o\u1ea1n xo\u1eafn. Lo\u1ea1i d\u00e2y n\u00e0y c\u00f3 \u0111\u1ed9 d\u1ebbo dai t\u1ed1t v\u00e0 d\u1ec5 u\u1ed1n cong, th\u00edch h\u1ee3p \u0111\u1ec3 lu\u1ed3n qua r\u00f2ng r\u1ecdc v\u00e0 tang tr\u1ed1ng, v\u00e0 l\u00e0 lo\u1ea1i d\u00e2y c\u00e1p th\u00e9p \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t trong c\u1ea7n c\u1ea9u.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"2-classification-by-lay-direction\">2. Ph\u00e2n lo\u1ea1i theo h\u01b0\u1edbng th\u00f4ng th\u01b0\u1eddng<\/h3>\n\n\n\n<p>C\u00f3 c\u00e1c lo\u1ea1i d\u00e2y th\u1eebng b\u1ec7n ki\u1ec3u lang, b\u1ec7n ki\u1ec3u th\u00f4ng th\u01b0\u1eddng v\u00e0 b\u1ec7n ki\u1ec3u xen k\u1ebd, nh\u01b0 th\u1ec3 hi\u1ec7n trong H\u00ecnh 1. Trong s\u1ed1 \u0111\u00f3, d\u00e2y th\u1eebng b\u1ec7n ki\u1ec3u th\u00f4ng th\u01b0\u1eddng \u00edt b\u1ecb xo\u1eafn ho\u1eb7c l\u1ecfng l\u1ebbo v\u00e0 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"946\" src=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/09\/Wire-rope-lay-directions.png\" alt=\"\" class=\"wp-image-16244\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"3-classification-by-lay-type\">3. Ph\u00e2n lo\u1ea1i theo lo\u1ea1i ng\u01b0\u1eddi b\u00ecnh th\u01b0\u1eddng<\/h3>\n\n\n\n<p>H\u01b0\u1edbng b\u1ed1 tr\u00ed c\u00e1c s\u1ee3i d\u00e2y: b\u00ean tr\u00e1i b\u1ed1 tr\u00ed theo h\u01b0\u1edbng s, b\u00ean ph\u1ea3i b\u1ed1 tr\u00ed theo h\u01b0\u1edbng z, v\u1edbi c\u00e1c d\u00e2y ngo\u00e0i \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed d\u1ecdc theo tr\u1ee5c c\u1ee7a s\u1ee3i d\u00e2y; h\u01b0\u1edbng b\u1ed1 tr\u00ed c\u1ee7a d\u00e2y c\u00e1p: b\u00ean tr\u00e1i b\u1ed1 tr\u00ed theo h\u01b0\u1edbng S, b\u00ean ph\u1ea3i b\u1ed1 tr\u00ed theo h\u01b0\u1edbng Z, v\u1edbi c\u00e1c s\u1ee3i ngo\u00e0i \u0111\u01b0\u1ee3c b\u1ed1 tr\u00ed d\u1ecdc theo tr\u1ee5c c\u1ee7a d\u00e2y c\u00e1p.<\/p>\n\n\n\n<p>Trong k\u00fd hi\u1ec7u d\u00e2y c\u00e1p th\u00e9p, ch\u1eef c\u00e1i \u0111\u1ea7u ti\u00ean l\u00e0 h\u01b0\u1edbng xo\u1eafn c\u1ee7a c\u00e1c s\u1ee3i nh\u1ecf, ch\u1eef c\u00e1i th\u1ee9 hai l\u00e0 h\u01b0\u1edbng xo\u1eafn c\u1ee7a d\u00e2y c\u00e1p; ngh\u0129a l\u00e0, c\u00e1c s\u1ee3i nh\u1ecf \u0111\u01b0\u1ee3c xo\u1eafn tr\u01b0\u1edbc theo ki\u1ec3u s ho\u1eb7c z, v\u00e0 d\u00e2y c\u00e1p l\u1edbn ho\u00e0n ch\u1ec9nh cu\u1ed1i c\u00f9ng \u0111\u01b0\u1ee3c xo\u1eafn theo ki\u1ec3u S ho\u1eb7c Z. Theo h\u01b0\u1edbng xo\u1eafn v\u00e0 ki\u1ec3u xo\u1eafn, d\u00e2y c\u00e1p th\u00e9p \u0111\u01b0\u1ee3c chia th\u00e0nh b\u1ed1n lo\u1ea1i: xo\u1eafn thu\u1eadn tr\u00e1i SZ, xo\u1eafn thu\u1eadn ph\u1ea3i ZS, xo\u1eafn ngang ph\u1ea3i ZZ v\u00e0 xo\u1eafn ngang tr\u00e1i SS.<\/p>\n\n\n\n<ul>\n<li>D\u00e2y c\u00e1p th\u00e9p xo\u1eafn th\u01b0\u1eddng (sZ, zS): kh\u00f4ng b\u1ecb l\u1ecfng ho\u1eb7c xo\u1eafn, th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong m\u00e1y m\u00f3c n\u00e2ng h\u1ea1; tuy nhi\u00ean, n\u00f3 c\u00f3 kh\u1ea3 n\u0103ng ti\u1ebfp x\u00fac k\u00e9m v\u00e0 tu\u1ed5i th\u1ecd ng\u1eafn.<\/li>\n\n\n\n<li>D\u00e2y c\u00e1p th\u00e9p Lang lay (zZ, sS): c\u00f3 kh\u1ea3 n\u0103ng ti\u1ebfp x\u00fac t\u1ed1t, \u0111\u1ed9 m\u00e0i m\u00f2n th\u1ea5p, b\u1ec1 m\u1eb7t nh\u1eb5n, \u0111\u1ed9 d\u1ebbo t\u1ed1t v\u00e0 tu\u1ed5i th\u1ecd cao; tuy nhi\u00ean, n\u00f3 t\u1ef1 xoay v\u00e0 d\u1ec5 b\u1ecb l\u1ecfng.<\/li>\n\n\n\n<li>D\u00e2y c\u00e1p th\u00e9p xo\u1eafn xen k\u1ebd (aZ, aS): c\u00f3 hi\u1ec7u su\u1ea5t tuy\u1ec7t v\u1eddi (nh\u01b0ng quy tr\u00ecnh ph\u1ee9c t\u1ea1p v\u00e0 \u00edt \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"4-classification-by-wire-contact-condition\">4. Ph\u00e2n lo\u1ea1i theo t\u00ecnh tr\u1ea1ng ti\u1ebfp x\u00fac d\u00e2y d\u1eabn<\/h3>\n\n\n\n<p>C\u00f3 c\u00e1c lo\u1ea1i d\u00e2y c\u00e1p ti\u1ebfp x\u00fac \u0111i\u1ec3m, d\u00e2y c\u00e1p ti\u1ebfp x\u00fac \u0111\u01b0\u1eddng th\u1eb3ng v\u00e0 d\u00e2y c\u00e1p ti\u1ebfp x\u00fac m\u1eb7t, nh\u01b0 th\u1ec3 hi\u1ec7n trong h\u00ecnh d\u01b0\u1edbi \u0111\u00e2y. Trong s\u1ed1 \u0111\u00f3, d\u00e2y c\u00e1p ti\u1ebfp x\u00fac \u0111\u01b0\u1eddng th\u1eb3ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i tr\u00ean c\u1ea7n c\u1ea9u v\u00ec c\u00f3 \u1ee9ng su\u1ea5t ti\u1ebfp x\u00fac gi\u1eefa c\u00e1c s\u1ee3i d\u00e2y th\u1ea5p, kh\u1ea3 n\u0103ng ch\u1ed1ng m\u00e0i m\u00f2n t\u1ed1t v\u00e0 tu\u1ed5i th\u1ecd cao.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"800\" src=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/09\/Wire-rope-contact-states.png\" alt=\"\" class=\"wp-image-16245\"\/><\/figure>\n\n\n\n<p>Theo c\u1ea5u tr\u00fac m\u1eb7t c\u1eaft ngang, d\u00e2y c\u00e1p ti\u1ebfp x\u00fac \u0111\u01b0\u1eddng d\u00e2y \u0111\u01b0\u1ee3c chia th\u00e0nh lo\u1ea1i th\u00f4 b\u00ean ngo\u00e0i (X\u2014lo\u1ea1i Seale), lo\u1ea1i th\u00f4-m\u1ecbn (W\u2014lo\u1ea1i Warrington) v\u00e0 lo\u1ea1i \u0111\u1eb7c (T\u2014lo\u1ea1i Filler), nh\u01b0 th\u1ec3 hi\u1ec7n trong H\u00ecnh a l\u00e0 lo\u1ea1i th\u00f4 b\u00ean ngo\u00e0i, b l\u00e0 lo\u1ea1i th\u00f4-m\u1ecbn v\u00e0 c l\u00e0 lo\u1ea1i \u0111\u1eb7c. Trong \u0111\u00f3, lo\u1ea1i th\u00f4-m\u1ecbn (b), t\u1ee9c l\u00e0 d\u00e2y c\u00e1p lo\u1ea1i Warrington W, \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong t\u1eddi \u0111i\u1ec7n v\u00ec h\u1ec7 s\u1ed1 l\u1ea5p \u0111\u1ea7y cao, \u0111\u1ed9 d\u1ebbo t\u1ed1t v\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i m\u1ea1nh.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1170\" height=\"498\" src=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/09\/Line-contact-wire-rope-cross-sections.png\" alt=\"\" class=\"wp-image-16248\"\/><\/figure>\n\n\n\n<p>C\u01a1 c\u1ea5u n\u00e2ng c\u1ee7a c\u1ea7n c\u1ea9u t\u1ed1t nh\u1ea5t n\u00ean s\u1eed d\u1ee5ng d\u00e2y c\u00e1p th\u00e9p lo\u1ea1i hai l\u1edbp, ti\u1ebfp x\u00fac th\u1eb3ng, lo\u1ea1i th\u00f4-m\u1ecbn (W) c\u00f3 \u0111\u1ed9 xo\u1eafn \u0111\u1ec1u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"5-non-standard-steel-wire-ropes\">5. D\u00e2y c\u00e1p th\u00e9p kh\u00f4ng ti\u00eau chu\u1ea9n<\/h3>\n\n\n\n<p>\u0110\u1ec3 c\u1ea3i thi\u1ec7n \u0111\u1ed9 b\u1ec1n k\u00e9o c\u1ee7a d\u00e2y c\u00e1p th\u00e9p v\u00e0 gi\u1ea3m \u0111\u01b0\u1eddng k\u00ednh c\u1ee7a n\u00f3 xu\u1ed1ng m\u1ee9c t\u1ed1i thi\u1ec3u, hi\u1ec7n nay \u1edf n\u01b0\u1edbc ngo\u00e0i ng\u01b0\u1eddi ta \u0111ang s\u1eed d\u1ee5ng c\u00e1c lo\u1ea1i d\u00e2y c\u00e1p th\u00e9p phi ti\u00eau chu\u1ea9n chuy\u00ean d\u1ee5ng. V\u00ed d\u1ee5, c\u00e1c thi\u1ebft b\u1ecb n\u00e2ng \u0111i\u1ec7n ki\u1ec3u AS c\u1ee7a c\u00f4ng ty STAHL (\u0110\u1ee9c) ch\u1ee7 y\u1ebfu s\u1eed d\u1ee5ng d\u00e2y c\u00e1p th\u00e9p tr\u00f2n Warrington\u2013Seale phi ti\u00eau chu\u1ea9n 6\u00d735+7 (l\u00f5i s\u1ee3i) c\u1ee7a \u0110\u1ee9c, nh\u01b0 h\u00ecnh minh h\u1ecda b\u00ean d\u01b0\u1edbi.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"900\" height=\"600\" src=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/09\/Non-standard-wire-rope-cross-section.png\" alt=\"\" class=\"wp-image-16254\"\/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"6-low-rotation-ropes-and-non-rotating-ropes\">6. D\u00e2y th\u1eebng c\u00f3 \u0111\u1ed9 xoay th\u1ea5p v\u00e0 d\u00e2y th\u1eebng kh\u00f4ng xoay<\/h3>\n\n\n\n<p>Khi t\u1ef7 l\u1ec7 lu\u1ed3n d\u00e2y t\u1eddi l\u00e0 1\/1, t\u1ee9c l\u00e0 v\u1edbi m\u00f3c \u0111\u01a1n, n\u00ean ch\u1ecdn lo\u1ea1i d\u00e2y c\u00f3 \u0111\u1ed9 xoay th\u1ea5p, ch\u1eb3ng h\u1ea1n nh\u01b0 d\u00e2y 18\u00d77 (l\u00f5i s\u1ee3i) \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong H\u00ecnh (1); khi kh\u1ea3 n\u0103ng n\u00e2ng l\u1edbn ho\u1eb7c chi\u1ec1u cao n\u00e2ng cao (H \u2265 40 m), n\u00ean s\u1eed d\u1ee5ng lo\u1ea1i d\u00e2y kh\u00f4ng xoay, ch\u1eb3ng h\u1ea1n nh\u01b0 d\u00e2y 36\u00d77 (l\u00f5i th\u00e9p) \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong H\u00ecnh (2).<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"546\" src=\"https:\/\/www.hndfcrane.com\/wp-content\/uploads\/2026\/09\/Low-rotation-and-non-rotating-wire-ropes.png\" alt=\"\" class=\"wp-image-16250\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"safety-technical-requirements-for-overhead-crane-wire-rope-use\">C\u00e1c y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt an to\u00e0n \u0111\u1ed1i v\u1edbi vi\u1ec7c s\u1eed d\u1ee5ng d\u00e2y c\u00e1p th\u00e9p tr\u00ean c\u1ea7n c\u1ea9u tr\u00ean cao.<\/h2>\n\n\n\n<ul>\n<li>Tr\u01b0\u1edbc khi s\u1eed d\u1ee5ng, ph\u1ea3i ki\u1ec3m tra d\u00e2y c\u00e1p xem c\u00f3 b\u1ecb h\u01b0 h\u1ecfng kh\u00f4ng; tr\u01b0\u1edbc khi v\u1eadn h\u00e0nh, ki\u1ec3m tra xem c\u00f3 b\u1ecb \u0111\u1ee9t d\u00e2y, bi\u1ebfn d\u1ea1ng, \u0103n m\u00f2n v\u00e0 b\u1eb9p kh\u00f4ng.<\/li>\n\n\n\n<li>D\u00e2y c\u00e1p th\u00e9p kh\u00f4ng \u0111\u01b0\u1ee3c c\u00f3 c\u00e1c khuy\u1ebft t\u1eadt nh\u01b0 u\u1ed1n cong g\u1ea5p kh\u00fac, v\u00f2ng xo\u1eafn, \u0111\u1ee9t d\u00e2y ho\u1eb7c b\u1ecb b\u1eb9p.<\/li>\n\n\n\n<li>Khi t\u1ea1o v\u00f2ng \u1edf cu\u1ed1i d\u00e2y c\u00e1p th\u00e9p, ph\u1ea3i s\u1eed d\u1ee5ng \u00edt nh\u1ea5t ba k\u1eb9p d\u00e2y c\u00e1p th\u00e9p; n\u1ebfu s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p n\u1ed1i, chi\u1ec1u d\u00e0i \u0111o\u1ea1n n\u1ed1i ph\u1ea3i kh\u00f4ng nh\u1ecf h\u01a1n 15 l\u1ea7n \u0111\u01b0\u1eddng k\u00ednh d\u00e2y c\u00e1p th\u00e9p, nh\u01b0ng kh\u00f4ng nh\u1ecf h\u01a1n 300 mm.<\/li>\n\n\n\n<li>Nghi\u00eam c\u1ea5m tuy\u1ec7t \u0111\u1ed1i vi\u1ec7c n\u1ed1i c\u00e1c d\u00e2y c\u00e1p th\u00e9p b\u1eb1ng c\u00e1ch th\u1eaft n\u00fat, v\u00e0 d\u00e2y c\u00e1p th\u00e9p d\u00f9ng tr\u00ean t\u1eddi kh\u00f4ng \u0111\u01b0\u1ee3c c\u00f3 m\u1ed1i n\u1ed1i.<\/li>\n\n\n\n<li>N\u1ebfu ph\u00e1t hi\u1ec7n d\u1ea7u r\u00f2 r\u1ec9 tr\u00ean d\u00e2y c\u00e1p trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng (tr\u1eeb d\u00e2y c\u00e1p m\u1edbi), \u0111i\u1ec1u \u0111\u00f3 cho th\u1ea5y d\u00e2y c\u00e1p \u0111\u00e3 b\u1ecb bi\u1ebfn d\u1ea1ng nghi\u00eam tr\u1ecdng; c\u1ea7n d\u1eebng c\u00f4ng vi\u1ec7c ngay l\u1eadp t\u1ee9c v\u00e0 ki\u1ec3m tra, x\u1eed l\u00fd d\u00e2y c\u00e1p.<\/li>\n\n\n\n<li>D\u00e2y c\u00e1p th\u00e9p ph\u1ea3i lu\u00f4n \u0111\u01b0\u1ee3c gi\u1eef s\u1ea1ch s\u1ebd v\u00e0 th\u01b0\u1eddng \u0111\u01b0\u1ee3c tra d\u1ea7u m\u1ed9t l\u1ea7n m\u1ed7i n\u0103m, b\u1eb1ng d\u1ea7u chuy\u00ean d\u1ee5ng cho d\u00e2y c\u00e1p th\u00e9p ho\u1eb7c d\u1ea7u xi lanh (nhi\u1ec7t \u0111\u1ed9 d\u1ea7u kh\u00f4ng \u0111\u01b0\u1ee3c v\u01b0\u1ee3t qu\u00e1 80 \u00b0C).<\/li>\n\n\n\n<li>D\u00e2y c\u00e1p th\u00e9p tr\u00ean <a href=\"https:\/\/www.hndfcrane.com\/vi\/crane-rope-drum\/\">tang tr\u1ed1ng c\u1ea7n c\u1ea9u tr\u00ean cao<\/a> Ph\u1ea3i gi\u1eef l\u1ea1i \u00edt nh\u1ea5t 3 cu\u1ed9n d\u00e2y an to\u00e0n.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"overhead-crane-wire-rope-inspection-and-maintenance-requirements\">Y\u00eau c\u1ea7u ki\u1ec3m tra v\u00e0 b\u1ea3o d\u01b0\u1ee1ng d\u00e2y c\u00e1p c\u1ea7n c\u1ea9u tr\u00ean cao<\/h2>\n\n\n\n<ul>\n<li>Ti\u1ebfn h\u00e0nh ki\u1ec3m tra tr\u1ef1c quan tr\u01b0\u1edbc khi v\u1eadn h\u00e0nh m\u1ed7i ng\u00e0y.<\/li>\n\n\n\n<li>Ti\u1ebfn h\u00e0nh ki\u1ec3m tra chi ti\u1ebft v\u00e0 ghi ch\u00e9p l\u1ea1i m\u1ed7i tu\u1ea7n.<\/li>\n\n\n\n<li>Ti\u1ebfn h\u00e0nh b\u1ea3o d\u01b0\u1ee1ng v\u00e0 b\u00f4i tr\u01a1n to\u00e0n di\u1ec7n m\u1ed7i th\u00e1ng m\u1ed9t l\u1ea7n.<\/li>\n\n\n\n<li>L\u1eadp s\u1ed5 theo d\u00f5i s\u1eed d\u1ee5ng d\u00e2y c\u00e1p th\u00e9p \u0111\u1ec3 theo d\u00f5i tu\u1ed5i th\u1ecd s\u1eed d\u1ee5ng.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"Trong c\u00e1c ho\u1ea1t \u0111\u1ed9ng n\u00e2ng h\u1ea1, d\u00e2y c\u00e1p th\u00e9p c\u1ee7a c\u1ea7n c\u1ea9u tr\u00ean cao l\u00e0 \u201cd\u00e2y s\u1ed1ng\u201d. N\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn an to\u00e0n n\u00e2ng h\u1ea1, s\u1ef1 \u1ed5n \u0111\u1ecbnh c\u1ee7a thi\u1ebft b\u1ecb v\u00e0 an to\u00e0n c\u1ee7a ng\u01b0\u1eddi v\u1eadn h\u00e0nh. N\u1ebfu l\u1ef1a ch\u1ecdn kh\u00f4ng \u0111\u00fang, b\u1ea3o tr\u00ec k\u00e9m ho\u1eb7c s\u1eed d\u1ee5ng v\u01b0\u1ee3t qu\u00e1 ti\u00eau chu\u1ea9n an to\u00e0n, c\u00e1c tai n\u1ea1n nghi\u00eam tr\u1ecdng nh\u01b0 \u0111\u1ee9t d\u00e2y v\u00e0 r\u01a1i h\u00e0ng h\u00f3a c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng x\u1ea3y ra. D\u00e2y c\u00e1p th\u00e9p d\u00f9ng tr\u00ean c\u1ea7n c\u1ea9u ph\u1ea3i tu\u00e2n th\u1ee7 ti\u00eau chu\u1ea9n GB\/T [\u2026]","protected":false},"featured_media":16259,"parent":0,"menu_order":0,"template":"single-SEO-Table.php","posts_category":[197],"posts_tag":[381],"acf":[],"_links":{"self":[{"href":"https:\/\/www.hndfcrane.com\/vi\/wp-json\/wp\/v2\/xmxposts\/16220"}],"collection":[{"href":"https:\/\/www.hndfcrane.com\/vi\/wp-json\/wp\/v2\/xmxposts"}],"about":[{"href":"https:\/\/www.hndfcrane.com\/vi\/wp-json\/wp\/v2\/types\/posts"}],"version-history":[{"count":15,"href":"https:\/\/www.hndfcrane.com\/vi\/wp-json\/wp\/v2\/xmxposts\/16220\/revisions"}],"predecessor-version":[{"id":16278,"href":"https:\/\/www.hndfcrane.com\/vi\/wp-json\/wp\/v2\/xmxposts\/16220\/revisions\/16278"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hndfcrane.com\/vi\/wp-json\/wp\/v2\/media\/16259"}],"wp:attachment":[{"href":"https:\/\/www.hndfcrane.com\/vi\/wp-json\/wp\/v2\/media?parent=16220"}],"wp:term":[{"taxonomy":"posts_category","embeddable":true,"href":"https:\/\/www.hndfcrane.com\/vi\/wp-json\/wp\/v2\/posts_category?post=16220"},{"taxonomy":"posts_tag","embeddable":true,"href":"https:\/\/www.hndfcrane.com\/vi\/wp-json\/wp\/v2\/posts_tag?post=16220"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}