{"id":3610,"date":"2022-10-21T14:46:53","date_gmt":"2022-10-21T07:46:53","guid":{"rendered":"https:\/\/bestray.com\/blog\/?p=3610"},"modified":"2024-02-27T15:58:33","modified_gmt":"2024-02-27T08:58:33","slug":"tieu-chuan-tcvn-6379-1998","status":"publish","type":"post","link":"https:\/\/bestray.com\/blog\/tieu-chuan-tcvn-6379-1998\/","title":{"rendered":"TCVN 6379:1998 &#8211; Ti\u00eau chu\u1ea9n qu\u1ed1c gia v\u1ec1 thi\u1ebft b\u1ecb ch\u1eefa ch\u00e1y"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Hi\u1ec7n nay, khi thi c\u00f4ng hay thi\u1ebft k\u1ebf l\u1eafp \u0111\u1eb7t h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y c\u1ea7n ph\u1ea3i \u0111\u1ea3m b\u1ea3o c\u00e1c ti\u00eau chu\u1ea9n Vi\u1ec7t Nam. <\/span><b><i>TCVN 6379:1998<\/i><\/b><span style=\"font-weight: 400;\"> l\u00e0 ti\u00eau chu\u1ea9n d\u00e0nh cho c\u00e1c tr\u1ee5 n\u01b0\u1edbc ch\u1eefa ch\u00e1y gi\u00fap ph\u00e1t huy t\u1ed1i \u0111a kh\u1ea3 n\u0103ng ch\u1eefa ch\u00e1y v\u00e0 b\u1ea3o v\u1ec7 con ng\u01b0\u1eddi an to\u00e0n. Tuy nhi\u00ean kh\u00f4ng ph\u1ea3i ch\u1ee7 th\u1ea7u n\u00e0o c\u0169ng bi\u1ebft \u0111\u1ebfn ti\u00eau chu\u1ea9n TCVN 6379:1998 trong vi\u1ec7c l\u1eafp \u0111\u1eb7t c\u00e1c thi\u1ebft b\u1ecb ch\u1eefa ch\u00e1y. \u0110\u1ec3 c\u00f3 th\u1ec3 nh\u1eadn bi\u1ebft c\u00e1c thi\u1ebft b\u1ecb ch\u1eefa ch\u00e1y c\u00f3 \u0111\u1ea1t chu\u1ea9n theo ti\u00eau chu\u1ea9n TCVN 6379:1998, h\u00e3y c\u00f9ng Bestray t\u00ecm hi\u1ec3u m\u1ed9t s\u1ed1 th\u00f4ng tin \u0111\u01b0\u1ee3c \u0111\u1ec1 c\u1eadp d\u01b0\u1edbi \u0111\u00e2y nh\u00e9!<\/span><\/p>\n<h2><strong>1. Kh\u00e1i qu\u00e1t v\u1ec1 TCVN 6379:1998<\/strong><\/h2>\n<h3><strong>1.1. \u0110\u1ecbnh ngh\u0129a v\u1ec1 TCVN 6379:1998<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">TCVN 6379:1998 l\u00e0 ti\u00eau chu\u1ea9n \u00e1p d\u1ee5ng cho c\u00e1c tr\u1ee5 n\u01b0\u1edbc ch\u1eefa ch\u00e1y \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t v\u00e0o h\u1ec7 th\u1ed1ng c\u1ea5p n\u01b0\u1edbc nh\u01b0: h\u1ec7 th\u1ed1ng c\u1ea5p n\u01b0\u1edbc b\u00ean ngo\u00e0i c\u1ee7a t\u00f2a nh\u00e0 ho\u1eb7c c\u00f4ng tr\u00ecnh, c\u1ea5p n\u01b0\u1edbc \u0111\u00f4 th\u1ecb,&#8230; C\u00e1c b\u1ed9 ph\u1eadn c\u1ee7a tr\u1ee5 n\u01b0\u1edbc \u0111\u1ec1u \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf ph\u00f9 h\u1ee3p v\u1edbi ti\u00eau chu\u1ea9n TCVN 6379:1998.<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<h3><strong>1.2. Ph\u1ea1m vi \u00e1p d\u1ee5ng<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">Ti\u00eau chu\u1ea9n TCVN 6379:1998 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho t\u1ea5t c\u1ea3 c\u00e1c tr\u1ee5 n\u01b0\u1edbc ch\u1eefa ch\u00e1y \u0111\u1eb7t \u1edf c\u00e1c con \u0111\u01b0\u1eddng chuy\u00ean d\u1ee5ng, nh\u1eb1m m\u1ee5c \u0111\u00edch cung c\u1ea5p n\u01b0\u1edbc khi c\u1ea7n thi\u1ebft khi x\u1ea3y ra h\u1ecfa ho\u1ea1n.\u00a0<\/span><\/p>\n<h2><strong>2. Quy \u0111\u1ecbnh chung<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">\u0110\u1ed1i v\u1edbi c\u00e1c b\u1ed9 ph\u1eadn tr\u00ean tr\u1ee5 n\u01b0\u1edbc ch\u1eefa ch\u00e1y c\u1ea7n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u00e0 s\u1ea3n xu\u1ea5t tu\u00e2n th\u1ee7 theo c\u00e1c ti\u00eau chu\u1ea9n sau:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">TCVN 209:1996 &#8211; Ren h\u00ecnh thang v\u1edbi k\u00edch th\u01b0\u1edbc \u0111\u01b0\u1eddng k\u00ednh ren l\u00e0 10<\/span><span style=\"font-weight: 400;\">\u00f7640mm. \u0110\u00e2y l\u00e0 k\u00edch th\u01b0\u1edbc c\u01a1 b\u1ea3n c\u1ee7a b\u1ed9 ph\u1eadn.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">TCVN 210:1966 &#8211; Dung sai c\u1ee7a ren h\u00ecnh thang c\u00f3 k\u00edch th\u01b0\u1edbc \u0111\u01b0\u1eddng k\u00ednh 10\u00f7300mm.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">TCVN 257:1985 &#8211; V\u1eadt li\u1ec7u kim lo\u1ea1i. Th\u1eed \u0111\u1ed9 c\u1ee9ng theo ph\u01b0\u01a1ng ph\u00e1p Rockwell.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">TCVN 385:1970 &#8211; V\u1eadt li\u1ec7u \u0111\u00fac t\u1eeb gang x\u00e1m. C\u00f3 s\u1ef1 sai l\u1ec7ch cho ph\u00e9p v\u1ec1 k\u00edch th\u01b0\u1edbc v\u00e0 kh\u1ed1i l\u01b0\u1ee3ng. L\u01b0\u1ee3ng d\u01b0 cho gia c\u00f4ng c\u01a1.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">TCVN 1917:1993 &#8211; Ren h\u1ec7 m\u00e9t. L\u1eafp gh\u00e9p c\u00f3 kho\u1ea3ng c\u00e1ch h\u1edf. Dung sai.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">TCVN 2003:1977 &#8211; V\u00f2ng \u0111\u1ec7m cao su c\u00f3 m\u1eb7t tr\u00f2n \u0111\u1ec3 t\u1ea1o \u0111\u1ed9 k\u00edn cho c\u00e1c thi\u1ebft b\u1ecb n\u00e9n v\u00e0 th\u1ee7y l\u1ef1c.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">TCVN 2097:1993 &#8211; S\u01a1n. Ph\u01b0\u01a1ng ph\u00e1p h\u1ed7 tr\u1ee3 x\u00e1c \u0111\u1ecbnh \u0111\u1ed9 b\u00e1m d\u00ednh c\u1ee7a m\u1ea3ng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">TCVN 2254:1977 &#8211; Ren h\u00ecnh thang.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">TCVN 4681:1989 &#8211; Ren \u1ed1ng h\u00ecnh tr\u1ee5.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">TCVN 5739:1993 &#8211; Thi\u1ebft b\u1ecb ph\u00f2ng ch\u00e1y ch\u1eefa ch\u00e1y. \u0110\u1ea7u n\u1ed1i.<\/span><\/li>\n<\/ul>\n<p><em><strong>Xem th\u00eam<\/strong><\/em>: <a href=\"https:\/\/bestray.com\/blog\/tieu-chuan-tcvn5408-1991\/\" target=\"_blank\" rel=\"noopener\"><strong>TCVN 5408:1991<\/strong><\/a> \u2013 Ti\u00eau chu\u1ea9n v\u1ec1 b\u1ea3o v\u1ec7 \u0103n m\u00f2n c\u1ee7a l\u1edbp m\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng<\/p>\n<h2><strong>3. Thu\u1eadt ng\u1eef<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">Trong ti\u00eau chu\u1ea9n TCVN 6379:1998 c\u00f3 xu\u1ea5t hi\u1ec7n m\u1ed9t s\u1ed1 thu\u1eadt ng\u1eef nh\u01b0 sau:<\/span><\/p>\n<h3><strong>3.1.Tr\u1ee5 n\u01b0\u1edbc ch\u1eefa ch\u00e1y<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">\u0110\u00e2y l\u00e0 thi\u1ebft b\u1ecb quan tr\u1ecdng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 l\u1eafp \u0111\u1eb7t v\u00e0o h\u1ec7 th\u1ed1ng \u0111\u01b0\u1eddng \u1ed1ng c\u1ea5p n\u01b0\u1edbc ph\u1ee5c v\u1ee5 cho vi\u1ec7c ch\u1eefa ch\u00e1y. Tr\u1ee5 n\u01b0\u1edbc bao g\u1ed3m c\u00e1c b\u1ed9 ph\u1eadn nh\u01b0 th\u00e2n tr\u1ee5, van, h\u1ecdng ch\u1edd c\u00f3 c\u1ea5u t\u1ea1o v\u00e0 k\u00edch th\u01b0\u1edbc theo ti\u00eau chu\u1ea9n TCVN 6379:1998.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Tr\u1ee5 n\u01b0\u1edbc ch\u1eefa ch\u00e1y bao g\u1ed3m hai lo\u1ea1i ch\u00ednh l\u00e0 tr\u1ee5 n\u01b0\u1edbc ch\u1eefa ch\u00e1y n\u1ed5i v\u00e0 tr\u1ee5 n\u01b0\u1edbc ch\u1eefa ch\u00e1y ng\u1ea7m.<\/span><\/p>\n<h4><strong>3.1.1. Tr\u1ee5 n\u01b0\u1edbc ch\u1eefa ch\u00e1y n\u1ed5i<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">\u0110\u00e2y l\u00e0 lo\u1ea1i tr\u1ee5 n\u01b0\u1edbc m\u00e0 to\u00e0n b\u1ed9 tr\u1ee5 n\u01b0\u1edbc n\u1ed5i tr\u00ean m\u1eb7t \u0111\u1ea5t c\u00f3 chi\u1ec1u cao quy \u0111\u1ecbnh theo ti\u00eau chu\u1ea9n TCVN 6379:1998.<\/span><\/p>\n<h4><strong>3.1.2. Tr\u1ee5 n\u01b0\u1edbc ch\u1eefa ch\u00e1y ng\u1ea7m<\/strong><\/h4>\n<p><span style=\"font-weight: 400;\">\u0110\u00e2y l\u00e0 lo\u1ea1i tr\u1ee5 n\u01b0\u1edbc \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf, l\u1eafp \u0111\u1eb7t to\u00e0n b\u1ed9 d\u01b0\u1edbi m\u1eb7t \u0111\u1ea5t. Khi mu\u1ed1n l\u1ea5y n\u01b0\u1edbc t\u1eeb tr\u1ee5 ng\u1ea7m c\u1ea7n ph\u1ea3i d\u00f9ng c\u1ed9t l\u1ea5y n\u01b0\u1edbc.<\/span><\/p>\n<h3><strong>3.2. C\u1ed9t l\u1ea5y n\u01b0\u1edbc<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">C\u1ed9t l\u1ea5y n\u01b0\u1edbc ch\u1eefa ch\u00e1y l\u00e0 thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng \u0111\u01b0\u1ee3c trang b\u1ecb theo c\u00e1c xe ch\u1eefa ch\u00e1y, n\u1ed1i v\u1edbi tr\u1ee5 ng\u1ea7m \u0111\u1ec3 l\u1ea5y n\u01b0\u1edbc. Lo\u1ea1i c\u1ed9t n\u00e0y th\u01b0\u1eddng c\u00f3 hai h\u1ecdng ch\u1edd \u0111\u1ec3 xe ch\u1eefa ch\u00e1y c\u00f3 th\u1ec3 h\u00fat n\u01b0\u1edbc tr\u1ef1c ti\u1ebfp qua c\u1ed9t ho\u1eb7c l\u1eafp v\u00e0o v\u00f2i ch\u1eefa ch\u00e1y \u0111\u1ec3 h\u00fat n\u01b0\u1edbc v\u00e0o xe ho\u1eb7c ch\u1eefa ch\u00e1y tr\u1ef1c ti\u1ebfp.<\/span><\/p>\n<h2><strong>4. Th\u00f4ng s\u1ed1 v\u00e0 k\u00edch th\u01b0\u1edbc c\u01a1 b\u1ea3n<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">Theo ti\u00eau chu\u1ea9n TCVN 6379:1998, k\u00edch th\u01b0\u1edbc v\u00e0 th\u00f4ng s\u1ed1 c\u1ee7a c\u00e1c tr\u1ee5 n\u01b0\u1edbc c\u1ea7n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u0111\u00fang v\u00e0 ki\u1ec3m tra nghi\u00eam ng\u1eb7t. C\u00e1c k\u00edch th\u01b0\u1edbc \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh r\u00f5 trong ti\u00eau chu\u1ea9n TCVN 6379:1998 nh\u01b0 sau:<\/span><\/p>\n<h3><strong>4.1. K\u00edch th\u01b0\u1edbc tr\u1ee5 n\u1ed5i<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">T\u1ed5ng k\u00edch th\u01b0\u1edbc c\u1ee7a tr\u1ee5 n\u01b0\u1edbc n\u1ed5i theo quy \u0111\u1ecbnh TCVN 6379:1998 l\u00e0 645cm, k\u00edch th\u01b0\u1edbc chi ti\u1ebft bao g\u1ed3m:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">K\u00edch th\u01b0\u1edbc \u0111\u01b0\u1eddng k\u00ednh n\u1eafp \u0111\u1eady: 120cm<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">B\u1ea1c ren<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Th\u00e2n tr\u1ee5: 425cm<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">C\u00e1nh van<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">L\u1ed7 x\u1ea3 n\u01b0\u1edbc \u0111\u1ecdng<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Van: 100cm<\/span><\/li>\n<\/ul>\n<figure id=\"attachment_3611\" aria-describedby=\"caption-attachment-3611\" style=\"width: 2560px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3611 size-full\" src=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/thiet-ke-tru-nuoc-day-noi--scaled.jpg\" alt=\"ti\u00eau chu\u1ea9n TCVN 6379:1998 \" width=\"2560\" height=\"2480\" srcset=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/thiet-ke-tru-nuoc-day-noi--scaled.jpg 2560w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/thiet-ke-tru-nuoc-day-noi--300x291.jpg 300w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/thiet-ke-tru-nuoc-day-noi--1024x992.jpg 1024w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/thiet-ke-tru-nuoc-day-noi--768x744.jpg 768w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/thiet-ke-tru-nuoc-day-noi--1536x1488.jpg 1536w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/thiet-ke-tru-nuoc-day-noi--2048x1984.jpg 2048w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/thiet-ke-tru-nuoc-day-noi--696x674.jpg 696w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/thiet-ke-tru-nuoc-day-noi--1068x1035.jpg 1068w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/thiet-ke-tru-nuoc-day-noi--1920x1860.jpg 1920w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/><figcaption id=\"caption-attachment-3611\" class=\"wp-caption-text\">Thi\u1ebft k\u1ebf c\u1ee7a tr\u1ee5 n\u01b0\u1edbc ch\u1eefa ch\u00e1y n\u1ed5i<\/figcaption><\/figure>\n<h3><strong>4.2. K\u00edch th\u01b0\u1edbc tr\u1ee5 ch\u00ecm<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">T\u1ed5ng k\u00edch th\u01b0\u1edbc tr\u1ee5 ch\u1eefa ch\u00e1y ch\u00ecm theo quy \u0111\u1ecbnh TCVN 6379:1998 l\u00e0 1175cm, trong \u0111\u00f3 k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c b\u1ed9 ph\u1eadn chi ti\u1ebft l\u00e0:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">K\u00edch th\u01b0\u1edbc \u0111\u01b0\u1eddng k\u00ednh n\u1eafp b\u1ea3n v\u1ec7 van: 150cm<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">H\u1ecdng v\u00e0 n\u1eafp h\u1ecdng nh\u1ecf<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Th\u00e2n tr\u1ee5: 925cm<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">H\u1ecdng v\u00e0 n\u1eafp h\u1ecdng l\u1edbn<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Tr\u1ee5c van<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">C\u00e1nh van<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">L\u1ed7 x\u1ea3 n\u01b0\u1edbc \u0111\u1ecdng<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">X\u00edch b\u1ea3o v\u1ec7 n\u1eafp\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Van: 100cm<\/span><\/li>\n<\/ul>\n<figure id=\"attachment_3612\" aria-describedby=\"caption-attachment-3612\" style=\"width: 1626px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-3612\" src=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/chi-tiet-tru-nuoc-day-chim-.jpg\" alt=\"T\u1ed5ng k\u00edch th\u01b0\u1edbc tr\u1ee5 ch\u1eefa ch\u00e1y ch\u00ecm theo quy \u0111\u1ecbnh TCVN 6379:1998\" width=\"1626\" height=\"1444\" srcset=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/chi-tiet-tru-nuoc-day-chim-.jpg 1626w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/chi-tiet-tru-nuoc-day-chim--300x266.jpg 300w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/chi-tiet-tru-nuoc-day-chim--1024x909.jpg 1024w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/chi-tiet-tru-nuoc-day-chim--768x682.jpg 768w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/chi-tiet-tru-nuoc-day-chim--1536x1364.jpg 1536w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/chi-tiet-tru-nuoc-day-chim--696x618.jpg 696w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/chi-tiet-tru-nuoc-day-chim--1068x948.jpg 1068w\" sizes=\"auto, (max-width: 1626px) 100vw, 1626px\" \/><figcaption id=\"caption-attachment-3612\" class=\"wp-caption-text\">C\u00e1c chi ti\u1ebft c\u1ee7a m\u1ed9t tr\u1ee5 n\u01b0\u1edbc ch\u1eefa ch\u00e1y ch\u00ecm<\/figcaption><\/figure>\n<h3><strong>4.3. K\u00edch th\u01b0\u1edbc c\u1ed9t l\u1ea5y n\u01b0\u1edbc<\/strong><\/h3>\n<p><span style=\"font-weight: 400;\">K\u00edch th\u01b0\u1edbc c\u1ee7a m\u1ed9t c\u1ed1t l\u1ea5y n\u01b0\u1edbc theo ti\u00eau chu\u1ea9n TCVN 6379:1998 l\u00e0 430cm x 1090cm.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Tay van m\u1edf van tr\u1ee5 ng\u1ea7m<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Van h\u1ecdng ch\u1edd<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u0110\u1ea7u n\u1ed1i h\u1ecdng ch\u1edd<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Th\u00e2n c\u1ed9t n\u01b0\u1edbc ch\u1eefa ch\u00e1y<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u0110\u1ea7u n\u1ed1i \u0111\u1ec3 n\u1ed1i v\u1edbi tr\u1ee5 ng\u1ea7m<\/span><\/li>\n<\/ul>\n<figure id=\"attachment_3613\" aria-describedby=\"caption-attachment-3613\" style=\"width: 1720px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-3613\" src=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/bo-phan-cua-mot-tru-day-nuoc-.jpg\" alt=\"K\u00edch th\u01b0\u1edbc c\u1ee7a m\u1ed9t c\u1ed1t l\u1ea5y n\u01b0\u1edbc theo ti\u00eau chu\u1ea9n TCVN 6379:1998 \" width=\"1720\" height=\"1224\" srcset=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/bo-phan-cua-mot-tru-day-nuoc-.jpg 1720w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/bo-phan-cua-mot-tru-day-nuoc--300x213.jpg 300w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/bo-phan-cua-mot-tru-day-nuoc--1024x729.jpg 1024w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/bo-phan-cua-mot-tru-day-nuoc--768x547.jpg 768w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/bo-phan-cua-mot-tru-day-nuoc--1536x1093.jpg 1536w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/bo-phan-cua-mot-tru-day-nuoc--696x495.jpg 696w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/10\/bo-phan-cua-mot-tru-day-nuoc--1068x760.jpg 1068w\" sizes=\"auto, (max-width: 1720px) 100vw, 1720px\" \/><figcaption id=\"caption-attachment-3613\" class=\"wp-caption-text\">B\u1ed9 ph\u1eadn chi ti\u1ebft c\u1ee7a m\u1ed9t c\u1ed9t l\u1ea5y n\u01b0\u1edbc<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">Ngo\u00e0i c\u00e1c k\u00edch th\u01b0\u1edbc c\u1ee7a tr\u1ee5 n\u01b0\u1edbc ch\u1eefa ch\u00e1y \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh theo ti\u00eau chu\u1ea9n TCVN 6379:1998, c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt c\u1ee7a c\u00e1c tr\u1ee5 ch\u1eefa ch\u00e1y c\u0169ng ph\u1ea3i tu\u00e2n th\u1ee7 nghi\u00eam ng\u1eb7t ti\u00eau chu\u1ea9n TCVN 6379:1998, tr\u00e1nh \u0111\u1ec3 x\u1ea3y ra nh\u1eefng tr\u01b0\u1eddng h\u1ee3p sai s\u00f3t.<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><strong>Th\u00f4ng s\u1ed1<\/strong><\/td>\n<td><strong>Tr\u1ee5 n\u1ed5i<\/strong><\/td>\n<td><strong>Tr\u1ee5 ng\u1ea7m<\/strong><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">\u00c1p su\u1ea5t ho\u1ea1t \u0111\u1ed9ng, Mpa <\/span><span style=\"font-weight: 400;\">(Kg\/cm<\/span><span style=\"font-weight: 400;\">2<\/span><span style=\"font-weight: 400;\">), kh\u00f4ng \u0111\u01b0\u1ee3c b\u00e9 h\u01a1n.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">K\u00edch th\u01b0\u1edbc \u0111\u01b0\u1eddng k\u00ednh trong th\u00e2n tr\u1ee5 n\u01b0\u1edbc (mm).<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Chi\u1ec1u cao n\u00e2ng c\u1ee7a van (mm).<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u0110\u1ed9 r\u01a1 c\u1ee7a van khi m\u1edf (mm) kh\u00f4ng \u0111\u01b0\u1ee3c l\u1edbn h\u01a1n.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Chi\u1ec1u cao tr\u1ee5 n\u01b0\u1edbc (mm).<\/span><\/p>\n<p><span style=\"font-weight: 400;\">S\u1ed1 v\u00f2ng quay c\u1ea7n thi\u1ebft \u0111\u1ec3 m\u1edf van ho\u00e0n to\u00e0n (v\u00f2ng).<\/span><\/p>\n<p><span style=\"font-weight: 400;\">H\u1ec7 s\u1ed1 hao h\u1ee5t \u00e1p su\u1ea5t trong tr\u1ee5 n\u01b0\u1edbc (s<\/span><span style=\"font-weight: 400;\">2<\/span><span style=\"font-weight: 400;\">m<\/span><span style=\"font-weight: 400;\">-5<\/span><span style=\"font-weight: 400;\">), kh\u00f4ng \u0111\u01b0\u1ee3c l\u1edbn h\u01a1n.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u0110\u01b0\u1eddng k\u00ednh b\u00ean tr\u1ecdng h\u1ecdng ch\u1edd (mm):<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">H\u1ecdng ch\u1edd l\u1edbn<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">H\u1ecdng ch\u1edd nh\u1ecf<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Kh\u1edbp n\u1ed1i v\u1edbi c\u1ed9t l\u1ea5y n\u01b0\u1edbc.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Th\u00f4ng s\u1ed1 m\u1eb7t b\u00edch:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">K\u00edch th\u01b0\u1eddng \u0111\u01b0\u1eddng k\u00ednh v\u00f2ng tr\u00f2n t\u00e2m l\u1ed7 b\u1eaft bulong (mm\u00b1 0,65)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">K\u00edch th\u01b0\u1edbc \u0111\u01b0\u1eddng k\u00ednh b\u1eaft bu l\u00f4ng (mm)<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">S\u1ed1 l\u1ed7<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Kh\u1ed1i l\u01b0\u1ee3ng tr\u1ee5 n\u01b0\u1edbc (kg), kh\u00f4ng \u0111\u01b0\u1ee3c l\u1edbn h\u01a1n.<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1(10)<\/span><\/p>\n<p><span style=\"font-weight: 400;\">125<\/span><\/p>\n<p><span style=\"font-weight: 400;\">30<\/span><\/p>\n<p><span style=\"font-weight: 400;\">0,4<\/span><\/p>\n<p><span style=\"font-weight: 400;\">1175<\/span><\/p>\n<p><span style=\"font-weight: 400;\">15<\/span><\/p>\n<p><span style=\"font-weight: 400;\">1,2&#215;10<\/span><span style=\"font-weight: 400;\">3<\/span><\/p>\n<p><span style=\"font-weight: 400;\">110<\/span><\/p>\n<p><span style=\"font-weight: 400;\">69<\/span><\/p>\n<p><span style=\"font-weight: 400;\">&#8211;<\/span><\/p>\n<p><span style=\"font-weight: 400;\">280<\/span><\/p>\n<p><span style=\"font-weight: 400;\">22<\/span><\/p>\n<p><span style=\"font-weight: 400;\">6<\/span><\/p>\n<p><span style=\"font-weight: 400;\">150<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1(10)<\/span><\/p>\n<p><span style=\"font-weight: 400;\">125<\/span><\/p>\n<p><span style=\"font-weight: 400;\">30<\/span><\/p>\n<p><span style=\"font-weight: 400;\">0,4<\/span><\/p>\n<p><span style=\"font-weight: 400;\">645<\/span><\/p>\n<p><span style=\"font-weight: 400;\">15<\/span><\/p>\n<p><span style=\"font-weight: 400;\">1,2&#215;10<\/span><span style=\"font-weight: 400;\">3<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Ren \u1ed1ng 6\u201d<\/span><\/p>\n<p><span style=\"font-weight: 400;\">280<\/span><\/p>\n<p><span style=\"font-weight: 400;\">22<\/span><\/p>\n<p><span style=\"font-weight: 400;\">6<\/span><\/p>\n<p><span style=\"font-weight: 400;\">95<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p><em><strong>Xem th\u00eam<\/strong><\/em>:<\/p>\n<ul>\n<li>Ti\u00eau chu\u1ea9n<a href=\"https:\/\/bestray.com\/blog\/nema-ve1\/\" target=\"_blank\" rel=\"noopener\"><strong> NEMA VE1<\/strong><\/a>:2017, CSA C22.2 No. 126.1-17<\/li>\n<li><a href=\"https:\/\/bestray.com\/blog\/tieu-chuan-astm\/\" target=\"_blank\" rel=\"noopener\"><strong>Ti\u00eau chu\u1ea9n ASTM<\/strong> <\/a>\u2013 Ti\u00eau chu\u1ea9n ng\u00e0nh s\u1eaft th\u00e9p x\u00e2y d\u1ef1ng<\/li>\n<\/ul>\n<h2><strong>5. Y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">Theo ti\u00eau chu\u1ea9n TCVN 6379:1998 quy \u0111\u1ecbnh v\u1ec1 c\u00e1c thi\u1ebft b\u1ecb ch\u1eefa ch\u00e1y, tr\u1ee5 ch\u1eefa ch\u00e1y khi s\u1ea3n xu\u1ea5t ph\u1ea3i tu\u00e2n th\u1ee7 c\u00e1c y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt nghi\u00eam ng\u1eb7t. C\u1ee5 th\u1ec3 c\u00e1c y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt nh\u01b0 sau:<\/span><\/p>\n<p><span style=\"font-weight: 400;\">5.1. Tr\u1ee5 n\u01b0\u1edbc ch\u1eefa ch\u00e1y ph\u1ea3i \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o ph\u00f9 h\u1ee3p v\u1edbi ti\u00eau chu\u1ea9n TCVN 6379:1998. K\u1ebft c\u1ea5u, k\u00edch th\u01b0\u1edbc t\u01b0\u01a1ng t\u1ef1 v\u00e0 \u0111\u01b0\u1ee3c ch\u1ea5p thu\u1eadn c\u1ee7a c\u00e1c c\u01a1 quan ph\u00f2ng ch\u00e1y ch\u1eefa ch\u00e1y.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">5.2. Tr\u1ee5 n\u01b0\u1edbc c\u1ea7n ch\u1ecbu \u0111\u01b0\u1ee3c \u00e1p su\u1ea5t th\u1eed kh\u00f4ng \u0111\u01b0\u1ee3c d\u01b0\u1edbi 1,5Mpa. Khi \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p th\u1eed 6.10 th\u00ec kh\u00f4ng \u0111\u01b0\u1ee3c c\u00f3 xu\u1ea5t hi\u1ec7n d\u1ea5u hi\u1ec7u n\u1ee9t g\u00e3y ho\u1eb7c bi\u1ebfn d\u1ea1ng.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">5.3. Sau khi l\u1eafp r\u00e1p tr\u1ee5 n\u01b0\u1edbc c\u1ea7n ph\u1ea3i \u0111\u1ea3m b\u1ea3o:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Tr\u1ee5 n\u01b0\u1edbc \u0111\u01b0\u1ee3c l\u1eafp k\u00edn, c\u00f3 \u00e1p su\u1ea5t th\u1ee7y l\u1ef1c kh\u00f4ng nh\u1ecf h\u01a1n 1 Mpa.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Momen xoay \u0111\u1ec3 m\u1edf\/\u0111\u00f3ng van tr\u1ee5 n\u01b0\u1edbc khi \u00e1p su\u1ea5t n\u01b0\u1edbc kh\u00f4ng l\u1edbn h\u01a1n 150Nm v\u00e0 kh\u00f4ng nh\u1ecf h\u01a1n 1 Mpa. Khi d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p th\u1eed 6.11 \u1edf tr\u1ea1ng th\u00e1i van \u0111\u00f3ng th\u00ec kh\u00f4ng cho ph\u00e9p x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng r\u00f2 r\u1ec9 \u1edf c\u00e1c m\u1ed1i n\u1ed1i v\u00e0 tr\u00ean th\u00e2n c\u1ee7a tr\u1ee5 n\u01b0\u1edbc.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">5.4. Van tr\u1ee5 n\u01b0\u1edbc v\u00e0 k\u1ebft c\u1ea5u truy\u1ec1n \u0111\u1ed9ng van ph\u1ea3i ch\u1ecbu \u0111\u01b0\u1ee3c t\u1ea3i tr\u1ecdng l\u1edbn h\u01a1n 3,104N. Khi \u00e1p d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p th\u1eed 6.13 th\u00ec van kh\u00f4ng \u0111\u01b0\u1ee3c b\u1ecb \u0111\u1ee9t, h\u1ecfng ren hay h\u1ecfng c\u00e1c ch\u1ed1t t\u1ef3.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">5.5. L\u01b0\u1ee3ng n\u01b0\u1edbc \u0111\u1ecdng l\u1ea1i \u1edf c\u00e1c tr\u1ee5 kh\u00f4ng \u0111\u01b0\u1ee3c l\u1edbn h\u01a1n <\/span><span style=\"font-weight: 400;\">50cm<\/span><span style=\"font-weight: 400;\">3<\/span><span style=\"font-weight: 400;\">. Trong tr\u01b0\u1eddng h\u1ee3p n\u01b0\u1edbc \u0111\u1ecdng l\u1ea1i l\u1edbn h\u01a1n <\/span><span style=\"font-weight: 400;\">50cm<\/span><span style=\"font-weight: 400;\">3<\/span><span style=\"font-weight: 400;\"> th\u00ec ph\u1ea3i \u0111\u01b0\u1ee3c s\u1ef1 \u0111\u1ed3ng \u00fd c\u1ee7a c\u00e1c c\u01a1 quan c\u00f3 th\u1ea9m quy\u1ec1n li\u00ean quan.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">5.6. K\u00edch th\u01b0\u1edbc \u0111\u01b0\u1eddng k\u00ednh l\u1ed7 x\u1ea3 n\u01b0\u1edbc c\u1ee7a th\u00e2n tr\u1ee5 kh\u00f4ng b\u00e9 h\u01a1n 8mm, \u1edf \u0111\u1ea7u ra c\u1ee7a l\u1ed7 x\u1ea3 n\u01b0\u1edbc \u0111\u1ecdng l\u00e0 ren \u1ed1ng h\u00ecnh tr\u1ee5 \u201c\u00f4 \u00bd\u201d theo c\u00e1c ti\u00eau chu\u1ea9n TCVN 4681:1989, TCVN 6379:1998.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">5.7. Ren ngo\u00e0i c\u1ee7a kh\u1edbp n\u1ed1i c\u1ee7a c\u1ed9t l\u1ea5y n\u01b0\u1edbc l\u00e0 lo\u1ea1i ren \u1ed1ng h\u00ecnh tr\u1ee5 \u201c\u00f4 6\u201d v\u1edbi dung sai 8g theo ti\u00eau chu\u1ea9n TCVN 1917:1993.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">5.8. H\u1ecdng ch\u1edd tr\u1ee5 n\u01b0\u1edbc n\u1ed5i ph\u1ea3i ph\u00f9 h\u1ee3p v\u1edbi \u0111\u1ea7u n\u1ed1i DR.2-125 c\u1ee7a h\u1ecdng l\u1edbn v\u00e0 \u0111\u1ea7u n\u1ed1i lo\u1ea1i \u0110T.1-77 \u0111\u1ed1i v\u1edbi h\u1ecdng nh\u1ecf theo ti\u00eau chu\u1ea9n TCVN 5739:1993, TCVN 6379:1998.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">5.9. Ren tr\u1ee5c van c\u00f3 d\u1ea1ng h\u00ecnh thang theo ti\u00eau chu\u1ea9n TCVN 209:1996, TCVN 210:1966, TCVN 6379:1998, TCVN 2254:1977.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">5.10. M\u1ed1i gh\u00e9p ren gi\u1eefa ph\u1ea7n c\u00e1nh v\u00e0 th\u00e2n van l\u00e0 7H\/8g theo ti\u00eau chu\u1ea9n TCVN 1917:1993, TCVN 6379:1998.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">5.11. Van v\u00e0 th\u00e2n c\u1ee7a tr\u1ee5 \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o b\u1eb1ng v\u1eadt li\u1ec7u c\u00f3 c\u01a1 t\u00ednh v\u00e0 ch\u1ed1ng \u0103n m\u00f2n kh\u00f4ng nh\u1ecf h\u01a1n gang x\u00e1m GX 15-32.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">5.12. Tr\u1ee5c van c\u00f3 ph\u1ea7n ren c\u1ee7a tr\u1ee5 n\u01b0\u1edbc ph\u1ea3i \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng th\u00e9p kh\u00f4ng g\u1ec9, c\u00f3 t\u00ednh ch\u1ea5t c\u01a1 l\u00fd kh\u00f4ng th\u1ea5p h\u01a1n them 30 Cr 13.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">5.13. Ph\u1ea7n c\u00f3 ren \u1edf kh\u1edbp v\u1eb7n c\u1ee7a tr\u1ee5 ng\u1ea7m ph\u1ea3i l\u00e0m b\u1eb1ng v\u1eadt li\u1ec7u c\u00f3 c\u01a1 t\u00ednh v\u00e0 t\u00ednh ch\u1ed1ng \u0103n m\u00f2n kh\u00f4ng \u0111\u01b0\u1ee3c th\u1ea5p h\u01a1n \u0111\u1ed3ng thau <\/span><span style=\"font-weight: 400;\">CuZn<\/span><span style=\"font-weight: 400;\">4<\/span><span style=\"font-weight: 400;\">Si ho\u1eb7c h\u1ee3p kim \u0111\u1ed3ng Cu<\/span><span style=\"font-weight: 400;\">5<\/span><span style=\"font-weight: 400;\">Sn<\/span><span style=\"font-weight: 400;\">5<\/span><span style=\"font-weight: 400;\">Zn<\/span><span style=\"font-weight: 400;\">5<\/span><span style=\"font-weight: 400;\">Pb. K\u1ebft c\u1ea5u v\u00e0 c\u00e1ch c\u1ed1 \u0111\u1ecbnh tr\u1ee5c van ph\u1ea3i \u0111\u1ea3m b\u1ea3o \u0111\u1ed9 ch\u1eafc ch\u1eafn c\u1ee7a c\u00e1c kh\u1edbp n\u1ed1i v\u00e0 kh\u00f4ng \u0111\u1ec3 x\u1ea3y ra tr\u01b0\u1eddng h\u1ee3p kh\u1edbp n\u1ed1i b\u1ecb xoay khi m\u1edf kh\u00f3a c\u1ed9t l\u1ea5y n\u01b0\u1edbc.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">5.14. V\u00f2ng \u0111\u1ec7m c\u1ee7a van ph\u1ea3i \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng v\u1eadt li\u1ec7u cao su ch\u1ecbu nhi\u1ec7t, ch\u1ecbu l\u1ea1nh, c\u00f3 \u0111\u1ed9 c\u1ee9ng cao v\u00e0 ch\u1ecbu \u0111\u01b0\u1ee3c m\u00f4i tr\u01b0\u1eddng \u0103n m\u00f2n theo ti\u00eau chu\u1ea9n TCVN 2003-77, TCVN 6379:1998. \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng c\u00e1c v\u1eadt li\u1ec7u c\u00f3 t\u00ednh ch\u1ea5t t\u01b0\u01a1ng \u0111\u01b0\u01a1ng.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">5.15. Sai s\u1ed1 v\u1ec1 kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 k\u00edch th\u01b0\u1edbc c\u1ee7a v\u1eadt \u0111\u01b0\u1ee3c l\u00e0m t\u1eeb gang x\u00e1m ph\u1ea3i c\u00f3 \u0111\u1ed9 \u0111\u00e1p \u1ee9ng c\u1ea5p 3 theo TCVN 385:70, TCVN 6379:1998.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">5.16. Chi ti\u1ebft c\u1ee7a van n\u1ed1i v\u1edbi tr\u1ee5c ph\u1ea3i \u0111\u01b0\u1ee3c l\u00e0m b\u1eb1ng c\u00e1c v\u1eadt li\u1ec7u c\u00f3 t\u00ednh ch\u1ea5t c\u01a1 b\u1ea3n kh\u00f4ng k\u00e9m h\u1ee3p kim \u0111\u1ed3ng thau m\u00e1c CuZn<\/span><span style=\"font-weight: 400;\">4<\/span><span style=\"font-weight: 400;\">Si ho\u1eb7c h\u1ee3p kim \u0111\u1ed3ng m\u00e1c Cu<\/span><span style=\"font-weight: 400;\">5<\/span><span style=\"font-weight: 400;\">Sn<\/span><span style=\"font-weight: 400;\">5<\/span><span style=\"font-weight: 400;\">Zn<\/span><span style=\"font-weight: 400;\">5<\/span><span style=\"font-weight: 400;\">Pb.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">5.17. L\u1edbp s\u01a1n ph\u1ee7 b\u00ean ngo\u00e0i tr\u1ee5 n\u01b0\u1edbc kh\u00f4ng \u0111\u01b0\u1ee3c bong tr\u00f3c, ph\u1ea3i \u0111\u1ea3m b\u1ea3o \u0111i\u1ec1u ki\u1ec7n v\u1eadn h\u00e0nh theo ti\u00eau chu\u1ea9n TCVN 6379:1998. Ph\u1ea7n n\u1eafp b\u1ea3o v\u1ec7 tr\u1ee5c van \u1edf \u0111\u1ea7u tr\u1ee5 n\u1ed5i c\u1ea7n \u0111\u01b0\u1ee3c s\u01a1n ph\u1ea3n quang m\u00e0u da cam ho\u1eb7c m\u00e0u v\u00e0ng.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">5.18. Ph\u1ea7n h\u00ecnh vu\u00f4ng \u0111\u1ec3 n\u1ed1i tr\u1ee5 n\u01b0\u1edbc ng\u1ea7m v\u1edbi c\u1ed9t n\u01b0\u1edbc ph\u1ea3i c\u00f3 k\u00edch th\u01b0\u1edbc 22x22mm, \u0111\u1ed9 ch\u00ednh x\u00e1c l\u00e0 -0,5. B\u1ec1 m\u1eb7t c\u1ee7a ph\u1ea7n h\u00ecnh vu\u00f4ng ph\u1ea3i c\u00f3 \u0111\u1ed9 c\u1ee9ng n\u1eb1m trong kho\u1ea3ng t\u1eeb 26-38 HRC.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">5.19. N\u1eafp \u0111\u1eady c\u1ee7a tr\u1ee5 n\u01b0\u1edbc ng\u1ea7m ph\u1ea3i l\u00e0 lo\u1ea1i l\u1eadt, kh\u00f4ng g\u00e2y c\u1ea3n tr\u1edf trong qu\u00e1 tr\u00ecnh l\u1eafp c\u1ed9t l\u1ea5y n\u01b0\u1edbc. Tr\u1ee5c van v\u00e0 n\u1eafp \u0111\u1eady c\u1ee7a h\u1ecdng n\u01b0\u1edbc ph\u1ea3i m\u1edf b\u1eb1ng ch\u00eca kh\u00f3a 5 c\u1ea1nh Z22.<\/span><\/p>\n<h2><strong>6. Ph\u01b0\u01a1ng ph\u00e1p th\u1eed<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">6.1. Th\u1eed nghi\u1ec7m c\u00e1c tr\u1ee5 n\u01b0\u1edbc ch\u1eefa ch\u00e1y \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong \u0111i\u1ec1u ki\u1ec7n:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u00c1p su\u1ea5t kh\u00ed quy\u1ec3n: 760 Hg.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Nhi\u1ec7t \u0111\u1ed9: 25 &#8211; 30<\/span><span style=\"font-weight: 400;\">\u00b0C.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u0110\u1ed9 \u1ea9m: 85 &#8211; 95%.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">6.2. Ki\u1ec3m tra \u00e1p su\u1ea5t ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng \u00e1p k\u1ebf c\u00f3 gi\u1edbi h\u1ea1n \u0111o c\u1ef1c \u0111\u1ea1i l\u00e0 2Mpa v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c kh\u00f4ng nh\u1ecf h\u01a1n 1,5.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">6.3. Ki\u1ec3m tra k\u00edch th\u01b0\u1edbc \u0111\u01b0\u1eddng k\u00ednh trong v\u00e0 ph\u1ea7n h\u00ecnh vu\u00f4ng c\u1ee7a tr\u1ee5c van b\u1eb1ng th\u01b0\u1edbc c\u1eb7p c\u00f3 sai s\u1ed1 \u00b1 0,5mm. Ki\u1ec3m tra \u0111\u1ed9 c\u1ee9ng theo TCVN 257:1985, TCVN 6379:1998.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">6.4. Ki\u1ec3m tra \u0111\u1ed9 n\u00e2ng c\u1ee7a van v\u00e0 k\u00edch th\u01b0\u1edbc c\u1ee7a van b\u1eb1ng th\u01b0\u1edbc \u0111o c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c 0,5.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">6.5. Ki\u1ec3m tra \u0111\u1ed9 r\u01a1 c\u1ee7a van b\u1eb1ng th\u01b0\u1edbc \u0111o c\u00f3 khe h\u1edf.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">6.6. Ki\u1ec3m tra k\u00edch th\u01b0\u1edbc bi\u00ean, chi\u1ec1u cao tr\u1ee5 n\u01b0\u1edbc v\u00e0 k\u00edch th\u01b0\u1edbc li\u00ean k\u1ebft b\u1eb1ng th\u01b0\u1edbc c\u00f3 chia v\u1ea1ch milimet v\u1edbi c\u1ea5p ch\u00ednh x\u00e1c 3.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">6.7. Ki\u1ec3m tra s\u1ed1 v\u00f2ng quay c\u1ea7n thi\u1ebft \u0111\u1ec3 m\u1edf van ho\u00e0n to\u00e0n b\u1eb1ng c\u00e1ch \u0111\u1ebfm tr\u1ef1c ti\u1ebfp, ki\u1ec3m tra ren b\u1eb1ng \u0111\u01b0\u1eddng ki\u1ec3m ren, ki\u1ec3m tra s\u1ef1 \u0111\u1ecbnh v\u1ecb n\u1eafp tr\u1ee5 b\u1eb1ng m\u1eaft, ki\u1ec3m tra kh\u1ed1i l\u01b0\u1ee3ng v\u00e0 k\u00edch th\u01b0\u1edbc v\u1eadt \u0111\u00fac b\u1eb1ng th\u01b0\u1edbc \u0111o b\u1eb1ng c\u00e2n c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c +0,5kg v\u00e0 th\u01b0\u1edbc \u0111o c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c c\u1ea5p 3.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">6.8. H\u1ec7 s\u1ed1 hao h\u1ee5t \u00e1p su\u1ea5t trong tr\u1ee5 n\u01b0\u1edbc ch\u1eefa ch\u00e1y \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh theo c\u00f4ng th\u1ee9c:<\/span><\/p>\n<p><i><span style=\"font-weight: 400;\">S <\/span><\/i><span style=\"font-weight: 400;\">= \u0394<\/span><i><span style=\"font-weight: 400;\">h <\/span><\/i><span style=\"font-weight: 400;\">\/ <\/span><i><span style=\"font-weight: 400;\">Q<\/span><\/i><i><span style=\"font-weight: 400;\">2<\/span><\/i><\/p>\n<p><span style=\"font-weight: 400;\">Trong \u0111\u00f3:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u0394<\/span><i><span style=\"font-weight: 400;\">h <\/span><\/i><span style=\"font-weight: 400;\">l\u00e0 \u00e1p su\u1ea5t hao h\u1ee5t trong tr\u1ee5 n\u01b0\u1edbc (m).<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Q l\u00e0 l\u01b0u l\u01b0\u1ee3ng n\u01b0\u1edbc (m3\/s).<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">6.9. Ki\u1ec3m tra kh\u1ed1i l\u01b0\u1ee3ng tr\u1ee5 n\u01b0\u1edbc b\u1eb1ng c\u00e2n, c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c trung b\u00ecnh v\u00e0 thang c\u00e2n c\u1ef1c \u0111\u1ea1i 500kg.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">6.10. Ki\u1ec3m tra kh\u1ea3 n\u0103ng ch\u1ecbu \u00e1p tr\u1ee5 n\u01b0\u1edbc \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng \u00e1p su\u1ea5t n\u01b0\u1edbc 1,5 Mpa trong 1 ph\u00fat v\u1edbi van h\u1edf. \u0110o \u00e1p su\u1ea5t b\u1eb1ng k\u1ebf \u00e1p 2,5 Mpa v\u00e0 c\u1ea5p ch\u00ednh x\u00e1c kh\u00f4ng nh\u1ecf h\u01a1n c\u1ea5p 1,5.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">6.11. Ki\u1ec3m tra \u0111\u1ed9 k\u00edn c\u1ee7a tr\u1ee5 n\u01b0\u1edbc theo ti\u00eau chu\u1ea9n TCVN 6379:1998 \u1edf \u00e1p su\u1ea5t 1Mpa trong 1 ph\u00fat v\u1edbi c\u1ea3 van m\u1edf v\u00e0 van \u0111\u00f3ng.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">6.12. D\u00f9ng l\u1ef1c k\u1ebf \u0111\u1ec3 \u0111o momen quay khi \u0111\u00f3ng\/m\u1edf van b\u1eb1ng kh\u00f3a tay van c\u1ee7a c\u1ed9t l\u1ea5y n\u01b0\u1edbc.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">6.13. Ki\u1ec3m tra c\u01a1 c\u1ea5u d\u1eabn \u0111\u1ed9ng van, \u0111\u1ed9 b\u1ec1n c\u01a1 h\u1ecdc b\u1eb1ng c\u00e1ch t\u00e1c d\u1ee5ng m\u1ed9t l\u1ef1c n\u00e9n l\u00ean van ho\u1eb7c k\u00e9o d\u1ecdc tr\u1ee5c \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng l\u1ef1c k\u1ebf, ho\u1eb7c t\u1ea1o th\u00e0nh b\u1edfi t\u1ea3i tr\u1ecdng c\u00f3 kh\u1ed1i l\u01b0\u1ee3ng 3000kg trong th\u1eddi gian 3 ph\u00fat.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">6.14. L\u01b0\u1ee3ng n\u01b0\u1edbc \u0111\u1ecdng l\u1ea1i trong tr\u1ee5 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng hi\u1ec7u s\u1ed1 gi\u1eefa l\u01b0\u1ee3ng n\u01b0\u1edbc r\u00f3t v\u00e0o tr\u1ee5 n\u01b0\u1edbc \u1edf tr\u1ea1ng th\u00e1i kh\u00f4, \u0111\u1eb7t \u0111\u1ee9ng, \u0111\u00f3ng k\u00edn v\u00e0 l\u01b0\u1ee3ng n\u01b0\u1edbc ch\u1ea3y ra ngo\u00e0i trong th\u1eddi gian 3 ph\u00fat. L\u01b0\u1ee3ng n\u01b0\u1edbc \u0111\u1ec3 ki\u1ec3m tra khi r\u00f3t v\u00e0o tr\u1ee5 kh\u00f4ng nh\u1ecf h\u01a1n 2&#215;10<\/span><span style=\"font-weight: 400;\">-3<\/span><span style=\"font-weight: 400;\"> m<\/span><span style=\"font-weight: 400;\">3<\/span><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">6.15. Ki\u1ec3m tra th\u00f4ng s\u1ed1, k\u00edch th\u01b0\u1edbc l\u1ed7 x\u1ea3 n\u01b0\u1edbc \u0111\u1ecdng v\u00e0 kh\u1edbp n\u1ed1i b\u1eb1ng d\u1ee5ng c\u1ee5 \u0111o th\u00f4ng d\u1ee5ng.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">6.16. Ki\u1ec3m tra s\u1ef1 c\u1ed1 \u0111\u1ecbnh c\u1ee7a c\u00e1c kh\u1edbp n\u1ed1i b\u1eb1ng c\u00e1ch v\u1eb7n ch\u1eb7t h\u1ebft c\u1ee1 c\u1ed9t l\u1ea5y n\u01b0\u1edbc v\u00e0o tr\u1ee5 ng\u1ea7m ho\u1eb7c v\u00f2i phun \u0111\u1ed1i v\u1edbi tr\u1ee5 n\u1ed5i.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">6.17. Ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng s\u01a1n b\u1ec1 m\u1eb7t tr\u1ee5 theo TCVN 2097:1993, TCVN 6379:1998.<\/span><\/p>\n<h2><strong>7. Ghi nh\u00e3n, bao g\u00f3i, v\u1eadn chuy\u1ec3n v\u00e0 b\u1ea3o qu\u1ea3n<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">Theo ti\u00eau chu\u1ea9n TCVN 6379:1998, vi\u1ec7c ghi nh\u00e3n v\u00e0o c\u00e1c s\u1ea3n ph\u1ea9m tr\u1ee5 n\u01b0\u1edbc \u0111\u1ec3 ph\u00e2n bi\u1ec7t \u0111\u01b0\u1ee3c c\u00e1c lo\u1ea1i v\u1edbi nhau, nh\u1eadn bi\u1ebft \u0111\u01b0\u1ee3c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt, n\u01a1i xu\u1ea5t x\u1ee9 v\u00e0 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m c\u1ea7n l\u01b0u \u00fd. Ngo\u00e0i ra, qu\u00e1 tr\u00ecnh bao g\u00f3i v\u00e0 v\u1eadn chuy\u1ec3n h\u1ebft s\u1ee9c l\u00e0 quan tr\u1ecdng, n\u00f3 gi\u00fap c\u00e1c tr\u1ee5 n\u01b0\u1edbc \u0111\u01b0\u1ee3c v\u1eadn chuy\u1ec3n \u0111i xa \u0111\u1ea3m b\u1ea3o an to\u00e0n, kh\u00f4ng b\u1ecb h\u01b0 h\u1ecfng hay thi\u1ebfu b\u1ea5t k\u1ef3 b\u1ed9 ph\u1eadn n\u00e0o. C\u00e1c tr\u1ee5 n\u01b0\u1edbc th\u01b0\u1eddng \u0111\u1eb7t ngo\u00e0i m\u00f4i tr\u01b0\u1eddng ch\u1ecbu t\u00e1c \u0111\u1ed9ng c\u1ee7a th\u1eddi ti\u1ebft nh\u01b0 m\u01b0a, n\u1eafng ho\u1eb7c tr\u1ee5 n\u01b0\u1edbc ng\u1ea7m \u0111\u1eb7t d\u01b0\u1edbi m\u1eb7t \u0111\u1ea5t. V\u1eady c\u1ea7n ph\u1ea3i bi\u1ebft b\u1ea3o qu\u1ea3n \u0111\u00fang c\u00e1ch, theo ti\u00eau chu\u1ea9n TCVN 6379:1998 \u0111\u00e3 quy \u0111\u1ecbnh, \u0111\u1ec3 c\u00e1c thi\u1ebft b\u1ecb s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng l\u00e2u b\u1ec1n, kh\u00f4ng m\u1ea5t nhi\u1ec1u chi ph\u00ed s\u1eeda ch\u1eefa v\u00e0 thay th\u1ebf.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Tr\u00ean c\u00e1c tr\u1ee5 n\u01b0\u1edbc c\u1ea7n ph\u1ea3i \u0111\u01b0\u1ee3c ghi r\u00f5, \u0111\u1ea7y \u0111\u1ee7 c\u00e1c n\u1ed9i dung:<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">T\u00ean s\u1ea3n ph\u1ea9m ho\u1eb7c c\u00e1c d\u1ea5u hi\u1ec7u h\u00e0ng h\u00f3a \u0111\u1eb7c tr\u01b0ng c\u1ee7a nh\u00e0 ch\u1ebf t\u1ea1o.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Lo\u1ea1i tr\u1ee5 n\u01b0\u1edbc.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">N\u0103m s\u1ea3n xu\u1ea5t.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">S\u1ed1 li\u1ec7u ti\u00eau chu\u1ea9n.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Th\u00f4ng tin n\u00e0y \u0111\u01b0\u1ee3c d\u00e1n ph\u00eda sau h\u1ecdng l\u1edbn \u0111\u1ed1i v\u1edbi tr\u1ee5 n\u01b0\u1edbc n\u1ed5i v\u00e0 th\u00e2n d\u01b0\u1edbi \u0111\u1ed1i v\u1edbi tr\u1ee5 n\u01b0\u1edbc ng\u1ea7m.<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ph\u1ea7n ren h\u1edf v\u00e0 c\u00e1c chi ti\u1ebft c\u00f3 b\u1ec1 m\u1eb7t kh\u00f4ng s\u01a1n ph\u1ea3i \u0111\u01b0\u1ee3c b\u00f4i m\u1ee1 \u0111\u1ec3 b\u1ea3o qu\u1ea3n.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">M\u1ed7i tr\u1ee5 n\u01b0\u1edbc tr\u01b0\u1edbc khi \u0111\u00f3ng g\u00f3i ph\u1ea3i k\u00e8m theo m\u1ed9t t\u00e0i li\u1ec7u h\u01b0\u1edbng d\u1eabn l\u1eafp \u0111\u1eb7t v\u00e0 v\u1eadn h\u00e0nh ho\u1ea1t \u0111\u1ed9ng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">C\u00e1c tr\u1ee5 n\u01b0\u1edbc c\u1ea7n \u0111\u01b0\u1ee3c b\u1ea3o qu\u1ea3n \u1edf nh\u1eefng n\u01a1i kh\u00f4 r\u00e1o v\u00e0 c\u1ea7n \u0111\u00f3ng van tr\u01b0\u1edbc khi b\u1ea3o qu\u1ea3n v\u00e0 v\u1eadn chuy\u1ec3n \u0111i nhi\u1ec1u n\u01a1i.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Khi v\u1eadn chuy\u1ec3n c\u1ea7n ki\u1ec3m tra c\u00e1c thi\u1ebft b\u1ecb \u0111\u1ea7y \u0111\u1ee7 v\u00e0 g\u00f3i ri\u00eang t\u1eebng thi\u1ebft b\u1ecb cho c\u1ed1 \u0111\u1ecbnh v\u00e0 ch\u1eafc ch\u1eafn. N\u1ebfu tr\u1ee5 n\u01b0\u1edbc \u0111\u01b0\u1ee3c \u0111\u00f3ng th\u00e0nh c\u00e1c ki\u1ec7n th\u00ec kh\u00f4ng \u0111\u01b0\u1ee3c g\u00f3i qu\u00e1 6 c\u00e1i\/ ki\u1ec7n \u0111\u1ed1i v\u1edbi tr\u1ee5 n\u1ed5i v\u00e0 10 c\u00e1i\/ ki\u1ec7n \u0111\u1ed1i v\u1edbi tr\u1ee5 ch\u00ecm.<\/span><\/li>\n<\/ul>\n<h2><strong>8. T\u1ed5ng k\u1ebft<\/strong><\/h2>\n<p><span style=\"font-weight: 400;\">H\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y ph\u1ea3i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf theo ti\u00eau chu\u1ea9n TCVN 6379:1998 \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o an to\u00e0n cho c\u00f4ng tr\u00ecnh thi\u1ebft k\u1ebf v\u00e0 thu\u1eadn l\u1ee3i trong vi\u1ec7c h\u1ed7 tr\u1ee3 ch\u1eefa ch\u00e1y khi c\u1ea7n thi\u1ebft. Ti\u00eau chu\u1ea9n TCVN 6379:1998 d\u00e0nh cho c\u00e1c tr\u1ee5 n\u01b0\u1edbc ch\u1eefa ch\u00e1y \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf nhi\u1ec1u khu v\u1ef1c. \u0110\u00e2y l\u00e0 m\u1ed9t h\u1ec7 th\u1ed1ng c\u1ea7n thi\u1ebft v\u00e0 r\u1ea5t quan tr\u1ecdng n\u1ebfu c\u00f3 x\u1ea3y ra m\u1ed9t v\u1ee5 ch\u00e1y n\u1ed5, gi\u00fap l\u1ef1c l\u01b0\u1ee3ng ph\u00f2ng ch\u00e1y ch\u1eefa ch\u00e1y c\u00f3 th\u1ec3 ho\u00e0n th\u00e0nh nhi\u1ec7m v\u1ee5 c\u1ee7a m\u00ecnh.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 h\u1ea1n ch\u1ebf t\u00ecnh tr\u1ea1ng ch\u00e1y n\u1ed5 x\u1ea3y ra th\u00ec c\u00e1c c\u00f4ng tr\u00ecnh c\u1ea7n \u0111\u01b0\u1ee3c trang b\u1ecb h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y \u0111\u1ea7y \u0111\u1ee7 \u0111\u00fang theo ti\u00eau chu\u1ea9n, \u0111\u1ea3m b\u1ea3o c\u00e1c \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n kh\u00f4ng b\u1ecb \u0111\u1ee9t g\u00e3y g\u00e2y ra ch\u1eadp \u0111i\u1ec7n. C\u00e1c \u0111\u01b0\u1eddng d\u00e2y d\u1eabn ph\u1ea3i \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7, t\u1ea1o n\u00ean s\u1ef1 th\u1ea9m m\u1ef9 cho c\u00f4ng tr\u00ecnh th\u00ec c\u00e1c nh\u00e0 \u0111\u1ea7u t\u01b0 v\u00e0 ch\u1ee7 th\u1ea7u c\u00f3 th\u1ec3 tham kh\u1ea3o th\u00eam m\u1ed9t s\u1ed1 s\u1ea3n ph\u1ea9m nh\u01b0 thang m\u00e1ng c\u00e1p, m\u00e1ng l\u01b0\u1edbi,&#8230; Hi\u1ec7n nay, c\u00f3 r\u1ea5t nhi\u1ec1u n\u01a1i cung c\u1ea5p c\u00e1c thi\u1ebft b\u1ecb n\u00e0y nh\u01b0ng n\u1ebfu b\u1ea1n \u0111ang c\u1ea7n t\u00ecm m\u1ed9t n\u01a1i uy t\u00edn, c\u00f3 ch\u1ea5t l\u01b0\u1ee3ng cao th\u00ec Bestray l\u00e0 l\u1ef1a ch\u1ecdn ho\u00e0n h\u1ea3o d\u00e0nh cho b\u1ea1n.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">C\u00f4ng ty Bestray c\u00f3 h\u01a1n 15 n\u0103m kinh nghi\u1ec7m trong vi\u1ec7c s\u1ea3n xu\u1ea5t v\u00e0 cung c\u1ea5p c\u00e1c thi\u1ebft b\u1ecb b\u1ea3o v\u1ec7 d\u00e2y d\u1eabn nh\u01b0 <\/span><strong><a href=\"https:\/\/bestray.com\/cable-management\/thang-cap\/\" target=\"_blank\" rel=\"noopener\">thang c\u00e1p<\/a>, <a href=\"https:\/\/bestray.com\/cable-management\/mang-cap\/\" target=\"_blank\" rel=\"noopener\">m\u00e1ng c\u00e1p<\/a>, <a href=\"https:\/\/bestray.com\/cable-management\/mang-luoi\/\" target=\"_blank\" rel=\"noopener\">m\u00e1ng l\u01b0\u1edbi<\/a><\/strong><span style=\"font-weight: 400;\"><strong>,<\/strong> thi\u1ebft b\u1ecb \u0111i\u1ec7n<\/span><span style=\"font-weight: 400;\">,<\/span><strong><a href=\"https:\/\/bestray.com\/blog\/lua-chon-phu-kien-mang-cap\/\" target=\"_blank\" rel=\"noopener\"> ph\u1ee5 ki\u1ec7n m\u00e1ng c\u00e1p<\/a><\/strong><span style=\"font-weight: 400;\">,&#8230; V\u1edbi s\u1ea3n ph\u1ea9m \u0111a d\u1ea1ng v\u1ec1 m\u1eabu m\u00e3, \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c nhu c\u1ea7u c\u1ee7a kh\u00e1ch h\u00e0ng n\u00ean Bestray \u0111ang \u0111\u01b0\u1ee3c r\u1ea5t nhi\u1ec1u nh\u00e0 \u0111\u1ea7u t\u01b0 tin t\u01b0\u1edfng v\u00e0 s\u1eed d\u1ee5ng. Ch\u00fang t\u00f4i lu\u00f4n mang t\u1edbi gi\u00e1 tr\u1ecb b\u1ec1n v\u1eefng cho c\u00f4ng tr\u00ecnh x\u00e2y d\u1ef1ng, n\u00e2ng cao v\u1ecb th\u1ebf h\u00ecnh \u1ea3nh s\u1ea3n ph\u1ea9m Vi\u1ec7t Nam tr\u00ean th\u1ecb tr\u01b0\u1eddng th\u1ebf gi\u1edbi.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 t\u00ecm hi\u1ec3u th\u00eam v\u1ec1 c\u00e1c s\u1ea3n ph\u1ea9m, b\u1ea1n c\u00f3 th\u1ec3 theo d\u00f5i ho\u1eb7c tham kh\u1ea3o th\u00eam c\u00e1c th\u00f4ng tin h\u1eefu \u00edch kh\u00e1c t\u1ea1i trang web c\u1ee7a ch\u00fang t\u00f4i. Ngo\u00e0i ra, \u0111\u1ec3 \u0111\u01b0\u1ee3c gi\u1ea3i \u0111\u00e1p c\u00e1c th\u1eafc m\u1eafc nhanh ch\u00f3ng th\u00ec b\u1ea1n c\u00f3 th\u1ec3 li\u00ean h\u1ec7 qua s\u1ed1 hotline: 0909089678 \u0111\u1ec3 \u0111\u01b0\u1ee3c nh\u00e2n vi\u00ean t\u01b0 v\u1ea5n h\u1ed7 tr\u1ee3 nhi\u1ec7t t\u00ecnh.<\/span><\/p>\n<figure id=\"attachment_1810\" aria-describedby=\"caption-attachment-1810\" style=\"width: 1778px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-1810\" src=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2021\/11\/Bai-13-Hinh-16.jpg\" alt=\"thang c\u00e1p\" width=\"1778\" height=\"1000\" srcset=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2021\/11\/Bai-13-Hinh-16.jpg 1778w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2021\/11\/Bai-13-Hinh-16-300x169.jpg 300w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2021\/11\/Bai-13-Hinh-16-1024x576.jpg 1024w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2021\/11\/Bai-13-Hinh-16-768x432.jpg 768w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2021\/11\/Bai-13-Hinh-16-1536x864.jpg 1536w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2021\/11\/Bai-13-Hinh-16-696x391.jpg 696w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2021\/11\/Bai-13-Hinh-16-1068x601.jpg 1068w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2021\/11\/Bai-13-Hinh-16-747x420.jpg 747w\" sizes=\"auto, (max-width: 1778px) 100vw, 1778px\" \/><figcaption id=\"caption-attachment-1810\" class=\"wp-caption-text\">ng\u00e3 ba<\/figcaption><\/figure>\n<figure id=\"attachment_2721\" aria-describedby=\"caption-attachment-2721\" style=\"width: 1778px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-2721\" src=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/01\/Hinh-9-A10-36-1.jpg\" alt=\"k\u1ef9 thu\u1eadt \u0111i\u1ec7n QCVN\" width=\"1778\" height=\"1000\" srcset=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/01\/Hinh-9-A10-36-1.jpg 1778w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/01\/Hinh-9-A10-36-1-300x169.jpg 300w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/01\/Hinh-9-A10-36-1-1024x576.jpg 1024w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/01\/Hinh-9-A10-36-1-768x432.jpg 768w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/01\/Hinh-9-A10-36-1-1536x864.jpg 1536w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/01\/Hinh-9-A10-36-1-696x391.jpg 696w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/01\/Hinh-9-A10-36-1-1068x601.jpg 1068w\" sizes=\"auto, (max-width: 1778px) 100vw, 1778px\" \/><figcaption id=\"caption-attachment-2721\" class=\"wp-caption-text\">Khay c\u00e1p s\u01a1n t\u0129nh \u0111i\u1ec7n<\/figcaption><\/figure>\n<figure id=\"attachment_3058\" aria-describedby=\"caption-attachment-3058\" style=\"width: 1778px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-3058\" src=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-1-Mang-Luoi-A69-2.jpg\" alt=\"Khay c\u00e1p Bestray m\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng\" width=\"1778\" height=\"1000\" srcset=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-1-Mang-Luoi-A69-2.jpg 1778w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-1-Mang-Luoi-A69-2-300x169.jpg 300w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-1-Mang-Luoi-A69-2-1024x576.jpg 1024w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-1-Mang-Luoi-A69-2-768x432.jpg 768w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-1-Mang-Luoi-A69-2-1536x864.jpg 1536w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-1-Mang-Luoi-A69-2-696x391.jpg 696w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-1-Mang-Luoi-A69-2-1068x601.jpg 1068w\" sizes=\"auto, (max-width: 1778px) 100vw, 1778px\" \/><figcaption id=\"caption-attachment-3058\" class=\"wp-caption-text\"><span style=\"font-size: 16px;\">Khay c\u00e1p Bestray m\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng<\/span><\/figcaption><\/figure>\n<figure id=\"attachment_3046\" aria-describedby=\"caption-attachment-3046\" style=\"width: 1778px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-3046\" src=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-3-Thang-Mang-Cap-A59-24.jpg\" alt=\"Thang c\u00e1p Bestray\" width=\"1778\" height=\"1000\" srcset=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-3-Thang-Mang-Cap-A59-24.jpg 1778w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-3-Thang-Mang-Cap-A59-24-300x169.jpg 300w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-3-Thang-Mang-Cap-A59-24-1024x576.jpg 1024w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-3-Thang-Mang-Cap-A59-24-768x432.jpg 768w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-3-Thang-Mang-Cap-A59-24-1536x864.jpg 1536w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-3-Thang-Mang-Cap-A59-24-696x391.jpg 696w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-3-Thang-Mang-Cap-A59-24-1068x601.jpg 1068w\" sizes=\"auto, (max-width: 1778px) 100vw, 1778px\" \/><figcaption id=\"caption-attachment-3046\" class=\"wp-caption-text\">C\u1ecdc ti\u1ebfp \u0111\u1ecba gi\u00fap ch\u1ed1ng s\u00e9t hi\u1ec7u qu\u1ea3 v\u00e0 h\u1ea1n ch\u1ebf thi\u1ec7t h\u1ea1i do s\u00e9t g\u00e2y ra, nh\u01b0ng h\u1ec7 th\u1ed1ng ti\u1ebfp \u0111\u1ecba ch\u1ed1ng s\u00e9t c\u1ea7n \u0111\u01b0\u1ee3c thi c\u00f4ng c\u1ea9n th\u1eadn, \u0111\u00fang quy tr\u00ecnh<\/figcaption><\/figure>\n<figure id=\"attachment_2927\" aria-describedby=\"caption-attachment-2927\" style=\"width: 1778px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-2927\" src=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/02\/Hinh-9-A16-46.jpg\" alt=\"Ph\u1ee5 ki\u1ec7n khay c\u00e1p\" width=\"1778\" height=\"1000\" srcset=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/02\/Hinh-9-A16-46.jpg 1778w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/02\/Hinh-9-A16-46-300x169.jpg 300w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/02\/Hinh-9-A16-46-1024x576.jpg 1024w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/02\/Hinh-9-A16-46-768x432.jpg 768w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/02\/Hinh-9-A16-46-1536x864.jpg 1536w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/02\/Hinh-9-A16-46-696x391.jpg 696w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/02\/Hinh-9-A16-46-1068x601.jpg 1068w\" sizes=\"auto, (max-width: 1778px) 100vw, 1778px\" \/><figcaption id=\"caption-attachment-2927\" class=\"wp-caption-text\"><span style=\"font-size: 16px;\">Ph\u1ee5 ki\u1ec7n khay c\u00e1p<\/span><\/figcaption><\/figure>\n<figure id=\"attachment_2909\" aria-describedby=\"caption-attachment-2909\" style=\"width: 1778px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-2909\" src=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/02\/Hinh-3-A53-14.jpg\" alt=\"M\u00e1ng c\u00e1p\" width=\"1778\" height=\"1000\" srcset=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/02\/Hinh-3-A53-14.jpg 1778w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/02\/Hinh-3-A53-14-300x169.jpg 300w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/02\/Hinh-3-A53-14-1024x576.jpg 1024w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/02\/Hinh-3-A53-14-768x432.jpg 768w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/02\/Hinh-3-A53-14-1536x864.jpg 1536w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/02\/Hinh-3-A53-14-696x391.jpg 696w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/02\/Hinh-3-A53-14-1068x601.jpg 1068w\" sizes=\"auto, (max-width: 1778px) 100vw, 1778px\" \/><figcaption id=\"caption-attachment-2909\" class=\"wp-caption-text\"><span style=\"font-size: 16px;\">M\u00e1ng c\u00e1p<\/span><\/figcaption><\/figure>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2774\" src=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/01\/Thang-Mang-Cap-A47-22.jpg\" alt=\"m\u00e1ng c\u00e1p nh\u1ef1a\" width=\"1778\" height=\"1000\" srcset=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/01\/Thang-Mang-Cap-A47-22.jpg 1778w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/01\/Thang-Mang-Cap-A47-22-300x169.jpg 300w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/01\/Thang-Mang-Cap-A47-22-1024x576.jpg 1024w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/01\/Thang-Mang-Cap-A47-22-768x432.jpg 768w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/01\/Thang-Mang-Cap-A47-22-1536x864.jpg 1536w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/01\/Thang-Mang-Cap-A47-22-696x391.jpg 696w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/01\/Thang-Mang-Cap-A47-22-1068x601.jpg 1068w\" sizes=\"auto, (max-width: 1778px) 100vw, 1778px\" \/><\/p>\n<figure id=\"attachment_3054\" aria-describedby=\"caption-attachment-3054\" style=\"width: 1778px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-3054\" src=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-6-Mang-Luoi-A79-3.jpg\" alt=\"C\u00f4ng ty Bestray chuy\u00ean gia thang m\u00e1ng c\u00e1p\" width=\"1778\" height=\"1000\" srcset=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-6-Mang-Luoi-A79-3.jpg 1778w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-6-Mang-Luoi-A79-3-300x169.jpg 300w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-6-Mang-Luoi-A79-3-1024x576.jpg 1024w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-6-Mang-Luoi-A79-3-768x432.jpg 768w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-6-Mang-Luoi-A79-3-1536x864.jpg 1536w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-6-Mang-Luoi-A79-3-696x391.jpg 696w, https:\/\/bestray.com\/blog\/wp-content\/uploads\/2022\/03\/Hinh-6-Mang-Luoi-A79-3-1068x601.jpg 1068w\" sizes=\"auto, (max-width: 1778px) 100vw, 1778px\" \/><figcaption id=\"caption-attachment-3054\" class=\"wp-caption-text\"><span style=\"font-size: 16px;\">C\u00f4ng ty Bestray chuy\u00ean gia thang m\u00e1ng c\u00e1p<\/span><\/figcaption><\/figure>\n<p>&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<\/p>\n<h2><strong>C\u00f4ng Ty C\u1ed5 Ph\u1ea7n Bestray &#8211; Chuy\u00ean S\u1ea3n Xu\u1ea5t Thang M\u00e1ng C\u00e1p (Cable Tray, <\/strong><strong>Cable <\/strong><strong>Trunking)<\/strong><\/h2>\n<ul>\n<li><span style=\"font-size: 20px;\">\u0110\u1ecba ch\u1ec9: 180\/7b, \u1ea5p T\u00e2n Th\u1edbi 3, x\u00e3 T\u00e2n Hi\u1ec7p, huy\u1ec7n H\u00f3c M\u00f4n, TPHCM<\/span><\/li>\n<li><span style=\"font-size: 20px;\">\u0110i\u1ec7n Tho\u1ea1i: (028) 3713 3076 &#8211; 078 453 1668 &#8211; 0909 089 678<\/span><\/li>\n<li><span style=\"font-size: 20px;\">E-mail: sales@bestray<\/span><\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-5197\" src=\"https:\/\/bestray.com\/blog\/wp-content\/uploads\/2024\/02\/Thang-Mang-Cap-Bestray-Chat-Luong-Cao-\u2013-Giai-Phap-Bao-Ve-An-Toan-Cho-He-Thong-Dien-1.gif\" alt=\"thang m\u00e1ng c\u00e1p\" width=\"1080\" height=\"1080\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hi\u1ec7n nay, khi thi c\u00f4ng hay thi\u1ebft k\u1ebf l\u1eafp \u0111\u1eb7t h\u1ec7 th\u1ed1ng ch\u1eefa ch\u00e1y c\u1ea7n ph\u1ea3i \u0111\u1ea3m b\u1ea3o c\u00e1c ti\u00eau chu\u1ea9n Vi\u1ec7t Nam. TCVN 6379:1998 l\u00e0 ti\u00eau chu\u1ea9n d\u00e0nh cho c\u00e1c tr\u1ee5 n\u01b0\u1edbc ch\u1eefa ch\u00e1y gi\u00fap ph\u00e1t huy t\u1ed1i \u0111a kh\u1ea3 n\u0103ng ch\u1eefa ch\u00e1y v\u00e0 b\u1ea3o v\u1ec7 con ng\u01b0\u1eddi an to\u00e0n. Tuy nhi\u00ean kh\u00f4ng ph\u1ea3i [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":3655,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[122],"tags":[269],"class_list":{"0":"post-3610","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-xay-dung","8":"tag-tcvn"},"lang":"vi","translations":{"vi":3610},"pll_sync_post":[],"_links":{"self":[{"href":"https:\/\/bestray.com\/blog\/wp-json\/wp\/v2\/posts\/3610","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bestray.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bestray.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bestray.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/bestray.com\/blog\/wp-json\/wp\/v2\/comments?post=3610"}],"version-history":[{"count":4,"href":"https:\/\/bestray.com\/blog\/wp-json\/wp\/v2\/posts\/3610\/revisions"}],"predecessor-version":[{"id":5295,"href":"https:\/\/bestray.com\/blog\/wp-json\/wp\/v2\/posts\/3610\/revisions\/5295"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bestray.com\/blog\/wp-json\/wp\/v2\/media\/3655"}],"wp:attachment":[{"href":"https:\/\/bestray.com\/blog\/wp-json\/wp\/v2\/media?parent=3610"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bestray.com\/blog\/wp-json\/wp\/v2\/categories?post=3610"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bestray.com\/blog\/wp-json\/wp\/v2\/tags?post=3610"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}