{"id":1829,"date":"2015-11-24T22:17:36","date_gmt":"2015-11-24T15:17:36","guid":{"rendered":"https:\/\/www.baohoxanh.com\/blog\/?p=1829"},"modified":"2026-09-08T12:15:04","modified_gmt":"2026-09-08T05:15:04","slug":"thiet-bi-an-toan-dien-an-toan-tai-thanh-pho-ho-chi-minh","status":"publish","type":"post","link":"https:\/\/www.baohoxanh.com\/blog\/thiet-bi-an-toan-dien-an-toan-tai-thanh-pho-ho-chi-minh\/","title":{"rendered":"Trang B\u1ecb An To\u00e0n \u0110i\u1ec7n Theo C\u1ea5p \u0110i\u1ec7n \u00c1p Cho T\u1ed5 Th\u1ee3 \u0110i\u1ec7n"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">M\u1ed9t t\u1ed5 th\u1ee3 \u0111i\u1ec7n v\u00e0o ca c\u1ea7n bi\u1ebft ch\u00ednh x\u00e1c v\u1ecb tr\u00ed c\u1ee7a m\u00ecnh \u0111\u01b0\u1ee3c c\u1ea5p nh\u1eefng m\u00f3n g\u00ec v\u00e0 m\u00f3n n\u00e0o l\u00e0 b\u1eaft bu\u1ed9c. Danh m\u1ee5c vi\u1ebft chung chung ki\u1ec3u &#8220;trang b\u1ecb \u0111\u1ea7y \u0111\u1ee7 b\u1ea3o h\u1ed9 lao \u0111\u1ed9ng&#8221; s\u1ebd v\u1ee1 ngay khi t\u1ed5 t\u00e1ch th\u00e0nh ba nh\u00f3m vi\u1ec7c kh\u00e1c nhau trong c\u00f9ng m\u1ed9t bu\u1ed5i. B\u00e0i n\u00e0y \u0111i theo h\u01b0\u1edbng l\u1eadp b\u1ea3ng c\u1ea5p ph\u00e1t cho <a href=\"https:\/\/www.baohoxanh.com\/an-toan-dien\">nh\u00f3m trang b\u1ecb an to\u00e0n \u0111i\u1ec7n<\/a>: ghi m\u00f3n, g\u1eafn c\u1ea5p \u0111i\u1ec7n \u00e1p, ch\u1ec9 r\u00f5 ai ki\u1ec3m tr\u01b0\u1edbc ca v\u00e0 ki\u1ec3m c\u00e1i g\u00ec.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">L\u1eadp Danh M\u1ee5c Trang B\u1ecb B\u00e1m Theo C\u1ea5p \u0110i\u1ec7n \u00c1p C\u1ee7a T\u1eebng V\u1ecb Tr\u00ed<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c \u0111\u1ea7u ti\u00ean kh\u00f4ng ph\u1ea3i ch\u1ecdn h\u00e3ng m\u00e0 l\u00e0 ghi ra \u0111i\u1ec7n \u00e1p danh \u0111\u1ecbnh th\u1ef1c t\u1ebf c\u1ee7a t\u1eebng v\u1ecb tr\u00ed l\u00e0m vi\u1ec7c. Ng\u01b0\u1eddi thao t\u00e1c t\u1ee7 ph\u00e2n ph\u1ed1i 380\/220 V v\u00e0 ng\u01b0\u1eddi v\u00e0o ng\u0103n l\u1ed9 trung th\u1ebf 22 kV kh\u00f4ng th\u1ec3 d\u00f9ng chung m\u1ed9t b\u1ed9 trang b\u1ecb, d\u00f9 c\u00f9ng thu\u1ed9c m\u1ed9t t\u1ed5. B\u1ea3ng c\u1ea5p ph\u00e1t n\u00ean c\u00f3 b\u1ed1n c\u1ed9t: t\u00ean v\u1ecb tr\u00ed, \u0111i\u1ec7n \u00e1p danh \u0111\u1ecbnh, m\u00f3n b\u1eaft bu\u1ed9c, m\u00f3n c\u1ea5p th\u00eam theo \u0111\u1ea7u vi\u1ec7c. C\u1ed9t cu\u1ed1i l\u00e0 ch\u1ed7 \u0111\u1ec3 s\u00e0o c\u00e1ch \u0111i\u1ec7n, b\u1ed9 ti\u1ebfp \u0111\u1ecba di \u0111\u1ed9ng hay b\u1ed9 kh\u00f3a treo th\u1ebb, t\u00f9y c\u00f4ng vi\u1ec7c h\u00f4m \u0111\u00f3.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Khi \u0111i\u1ec7n \u00e1p danh \u0111\u1ecbnh \u0111\u00e3 ghi r\u00f5, m\u1ecdi m\u00f3n c\u00e1ch \u0111i\u1ec7n trong b\u1ed9 ph\u1ea3i \u0111\u01b0\u1ee3c ch\u1ecdn \u1edf c\u1ea5p b\u1eb1ng ho\u1eb7c cao h\u01a1n gi\u00e1 tr\u1ecb \u0111\u00f3. Ch\u1ecdn th\u1ea5p h\u01a1n th\u1ef1c t\u1ebf l\u00e0 l\u1ed7i n\u1eb7ng nh\u1ea5t trong kh\u00e2u c\u1ea5p ph\u00e1t, v\u00ec ng\u01b0\u1eddi d\u00f9ng v\u1eabn tin r\u1eb1ng m\u00ecnh \u0111ang \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7. Ch\u1ecdn cao h\u01a1n qu\u00e1 nhi\u1ec1u th\u00ec m\u00f3n \u0111\u1ed3 d\u00e0y v\u00e0 c\u1ee9ng, th\u1ee3 thao t\u00e1c kh\u00f3 v\u00e0 th\u01b0\u1eddng t\u1ef1 th\u00e1o ra gi\u1eefa ch\u1eebng. Ghi c\u1ea5p c\u00e1ch \u0111i\u1ec7n ngay c\u1ea1nh t\u00ean m\u00f3n trong b\u1ea3ng gi\u00fap th\u1ee7 kho kh\u00f4ng ph\u00e1t nh\u1ea7m khi h\u1ebft size.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ed9 c\u01a1 b\u1ea3n c\u1ee7a m\u1ed9t v\u1ecb tr\u00ed l\u00e0m vi\u1ec7c trong nh\u00e0 m\u00e1y th\u01b0\u1eddng g\u1ed3m c\u00e1c nh\u00f3m d\u01b0\u1edbi \u0111\u00e2y, x\u1ebfp theo th\u1ee9 t\u1ef1 ng\u01b0\u1eddi th\u1ee3 ch\u1ea1m v\u00e0o ch\u00fang trong ca:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>C\u00e1ch ly b\u00e0n tay<\/strong>: g\u0103ng c\u00e1ch \u0111i\u1ec7n \u0111\u00fang c\u1ea5p, k\u00e8m g\u0103ng l\u00f3t th\u1ea5m m\u1ed3 h\u00f4i v\u00e0 g\u0103ng da b\u1ecdc ngo\u00e0i ch\u1ed1ng r\u00e1ch.<\/li><li><strong>C\u00e1ch ly b\u00e0n ch\u00e2n v\u00e0 s\u00e0n \u0111\u1ee9ng<\/strong>: \u1ee7ng ho\u1eb7c gi\u00e0y c\u00e1ch \u0111i\u1ec7n, th\u1ea3m tr\u1ea3i tr\u01b0\u1edbc c\u1eeda t\u1ee7, b\u1ee5c c\u00e1ch \u0111i\u1ec7n khi thao t\u00e1c cao.<\/li><li><strong>Ki\u1ec3m tra v\u00e0 thao t\u00e1c<\/strong>: b\u00fat th\u1eed \u0111i\u1ec7n, s\u00e0o c\u00e1ch \u0111i\u1ec7n, b\u1ed9 ti\u1ebfp \u0111\u1ecba di \u0111\u1ed9ng, kh\u00f3a v\u00e0 th\u1ebb treo c\u1ea3nh b\u00e1o.<\/li><li><strong>Che ch\u1eafn ph\u1ea7n mang \u0111i\u1ec7n l\u00e2n c\u1eadn<\/strong>: t\u1ea5m che, \u1ed1ng b\u1ecdc thanh c\u00e1i, t\u1ea5m ph\u1ee7 \u0111\u1ea7u c\u1ef1c trong ng\u0103n t\u1ee7 ch\u1eadt.<\/li><li><strong>Ch\u1ed1ng h\u1ed3 quang<\/strong>: qu\u1ea7n \u00e1o v\u00e0 t\u1ea5m che m\u1eb7t ch\u1ed1ng h\u1ed3 quang cho v\u1ecb tr\u00ed c\u00f3 thao t\u00e1c \u0111\u00f3ng c\u1eaft.<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/www.baohoxanh.com\/blog\/wp-content\/uploads\/2015\/11\/thiet-bi-an-toan-dien.jpg\" alt=\"B\u1ed9 trang b\u1ecb an to\u00e0n \u0111i\u1ec7n c\u1ea5p ph\u00e1t cho m\u1ed9t t\u1ed5 th\u1ee3 \u0111i\u1ec7n\" loading=\"lazy\" width=\"640\" height=\"640\" title=\"\"><figcaption class=\"wp-element-caption\">M\u1ed9t b\u1ed9 c\u1ea5p ph\u00e1t \u0111\u1ea7y \u0111\u1ee7 g\u1ed3m nhi\u1ec1u nh\u00f3m m\u00f3n kh\u00e1c nhau, m\u1ed7i nh\u00f3m ch\u1eb7n m\u1ed9t \u0111\u01b0\u1eddng d\u1eabn d\u00f2ng \u0111i\u1ec7n qua c\u01a1 th\u1ec3.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Gh\u00e9p C\u1ea5p C\u1ee7a G\u0103ng V\u00e0 Th\u1ea3m, C\u00f2n \u1ee6ng Th\u00ec \u0110\u1ecdc Theo Thang Ri\u00eang<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ba nh\u00f3m hay b\u1ecb l\u1ec7ch c\u1ea5p nh\u1ea5t trong m\u1ed9t b\u1ed9 l\u00e0 g\u0103ng tay, th\u1ea3m v\u00e0 \u1ee7ng, v\u00ec m\u1ed7i lo\u1ea1i \u0111i theo m\u1ed9t ti\u00eau chu\u1ea9n ri\u00eang. G\u0103ng c\u00e1ch \u0111i\u1ec7n thu\u1ed9c ph\u1ea1m vi <a href=\"https:\/\/standards.globalspec.com\/std\/2055726\/iec-60903\" rel=\"nofollow noopener\" target=\"_blank\">IEC 60903<\/a>, th\u1ea3m c\u00e1ch \u0111i\u1ec7n thu\u1ed9c IEC 61111, c\u00f2n gi\u00e0y v\u00e0 \u1ee7ng c\u00e1ch \u0111i\u1ec7n thu\u1ed9c EN 50321-1:2018. G\u0103ng v\u00e0 th\u1ea3m d\u00f9ng chung m\u1ed9t thang class n\u00ean gh\u00e9p th\u1eb3ng v\u1ec1 c\u00f9ng m\u1ed9t ng\u01b0\u1ee1ng \u0111i\u1ec7n \u00e1p \u0111\u01b0\u1ee3c; gi\u00e0y v\u00e0 \u1ee7ng th\u00ec kh\u00f4ng, thang c\u1ea5p c\u1ee7a ch\u00fang ng\u1eafn h\u01a1n h\u1eb3n v\u00e0 ph\u1ea3i \u0111\u1ecdc t\u00e1ch ra.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">EN 50321-1:2018 ch\u1ec9 \u0111\u1eb7t ra hai c\u1ea5p cho gi\u00e0y v\u00e0 \u1ee7ng c\u00e1ch \u0111i\u1ec7n: class 00 d\u00f9ng \u1edf l\u01b0\u1edbi danh \u0111\u1ecbnh t\u1edbi 500 V xoay chi\u1ec1u v\u00e0 750 V m\u1ed9t chi\u1ec1u, class 0 t\u1edbi 1.000 V xoay chi\u1ec1u v\u00e0 1.500 V m\u1ed9t chi\u1ec1u. Thang n\u00e0y d\u1eebng \u1edf \u0111\u00f3, kh\u00f4ng c\u00f3 gi\u00e0y hay \u1ee7ng c\u00e1ch \u0111i\u1ec7n class 1, 2, 3, 4. Trong ph\u1ea1m vi ti\u00eau chu\u1ea9n c\u00f3 c\u00e2u nh\u1eafc t\u1edbi vi\u1ec7c l\u00e0m tr\u00ean ho\u1eb7c g\u1ea7n ph\u1ea7n mang \u0111i\u1ec7n \u0111\u1ebfn 36.000 V xoay chi\u1ec1u v\u00e0 25.000 V m\u1ed9t chi\u1ec1u, nh\u01b0ng \u0111\u00f3 l\u00e0 m\u00f4 t\u1ea3 m\u00f4i tr\u01b0\u1eddng n\u01a1i \u0111\u00f4i \u1ee7ng c\u00f3 m\u1eb7t, kh\u00f4ng ph\u1ea3i m\u1ee9c \u0111i\u1ec7n \u00e1p \u0111\u00f4i \u1ee7ng ch\u1eb7n \u0111\u01b0\u1ee3c. S\u00e1u c\u1ea5p t\u1eeb 500 V \u0111\u1ebfn 36.000 V l\u00e0 thang c\u1ee7a g\u0103ng theo IEC 60903 v\u00e0 th\u1ea3m theo IEC 61111. Gi\u00e0y \u1ee7ng theo EN 50321-1 c\u00f2n ph\u1ea3i \u0111\u1ea1t th\u00eam m\u1ed9t trong ba ti\u00eau chu\u1ea9n gi\u00e0y an to\u00e0n l\u00e0 EN ISO 20345, EN ISO 20346 v\u00e0 EN ISO 20347 \u1edf ph\u1ea7n \u0111\u1ebf v\u1edbi m\u0169i.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>C\u1ea5p c\u00e1ch \u0111i\u1ec7n<\/th><th>\u0110i\u1ec7n \u00e1p s\u1eed d\u1ee5ng t\u1ed1i \u0111a (xoay chi\u1ec1u)<\/th><th>V\u1ecb tr\u00ed th\u01b0\u1eddng g\u1eb7p trong nh\u00e0 m\u00e1y<\/th><\/tr><\/thead><tbody><tr><td>Class 00<\/td><td>500 V<\/td><td>T\u1ee7 \u0111i\u1ec1u khi\u1ec3n, h\u1ed9p n\u1ed1i, m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n t\u00e1ch ri\u00eang<\/td><\/tr><tr><td>Class 0<\/td><td>1.000 V<\/td><td>T\u1ee7 ph\u00e2n ph\u1ed1i 380\/220 V, t\u1ee7 \u0111\u1ed9ng l\u1ef1c, b\u1ea3ng \u0111i\u1ec7n x\u01b0\u1edfng<\/td><\/tr><tr><td>Class 1<\/td><td>7.500 V<\/td><td>M\u1ea1ch 3,3 kV v\u00e0 6 kV trong tr\u1ea1m n\u1ed9i b\u1ed9 nh\u00e0 m\u00e1y<\/td><\/tr><tr><td>Class 2<\/td><td>17.000 V<\/td><td>L\u01b0\u1edbi n\u1ed9i b\u1ed9 10 kV v\u00e0 15 kV; kh\u00f4ng \u0111\u1ee7 cho l\u01b0\u1edbi 22 kV<\/td><\/tr><tr><td>Class 3<\/td><td>26.500 V<\/td><td>Tr\u1ea1m bi\u1ebfn \u00e1p v\u00e0 ng\u0103n l\u1ed9 \u1edf c\u1ea5p 22 kV<\/td><\/tr><tr><td>Class 4<\/td><td>36.000 V<\/td><td>C\u1ea5p cao nh\u1ea5t c\u1ee7a thang ph\u00e2n lo\u1ea1i n\u00e0y<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">Thang s\u00e1u c\u1ea5p n\u00e0y l\u00e0 c\u1ee7a g\u0103ng theo IEC 60903 v\u00e0 th\u1ea3m theo IEC 61111. Gi\u00e0y v\u00e0 \u1ee7ng theo EN 50321-1:2018 n\u1eb1m ngo\u00e0i b\u1ea3ng v\u00ec ch\u1ec9 c\u00f3 class 00 v\u00e0 class 0.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ecdc b\u1ea3ng theo chi\u1ec1u ng\u01b0\u1ee3c l\u1ea1i c\u0169ng c\u00f3 \u00edch: bi\u1ebft v\u1ecb tr\u00ed l\u00e0m vi\u1ec7c \u1edf 22 kV th\u00ec lo\u1ea1i ngay g\u0103ng v\u00e0 th\u1ea3m \u1edf class 0, 1 v\u00e0 2 ra kh\u1ecfi danh s\u00e1ch mua. V\u1edbi l\u01b0\u1edbi h\u1ea1 \u00e1p trong x\u01b0\u1edfng, class 0 l\u00e0 m\u1ee9c th\u01b0\u1eddng \u0111\u01b0\u1ee3c ch\u1ecdn cho c\u1ea3 g\u0103ng l\u1eabn th\u1ea3m. C\u1ea5p class lu\u00f4n \u0111\u01b0\u1ee3c in ho\u1eb7c d\u1eadp n\u1ed5i tr\u00ean th\u00e2n s\u1ea3n ph\u1ea9m. M\u00f3n n\u00e0o m\u1edd nh\u00e3n t\u1edbi m\u1ee9c kh\u00f4ng \u0111\u1ecdc \u0111\u01b0\u1ee3c c\u1ea5p th\u00ec coi nh\u01b0 kh\u00f4ng x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c c\u1ea5p, v\u00e0 kh\u00f4ng ph\u00e1t ra hi\u1ec7n tr\u01b0\u1eddng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ph\u00e2n B\u1ed9 Trang B\u1ecb Cho Ba Nh\u00f3m V\u1ecb Tr\u00ed Th\u01b0\u1eddng G\u1eb7p Trong Nh\u00e0 M\u00e1y<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u00f3m th\u1ee9 nh\u1ea5t l\u00e0 th\u1ee3 thao t\u00e1c t\u1ee7 ph\u00e2n ph\u1ed1i v\u00e0 t\u1ee7 \u0111\u1ed9ng l\u1ef1c trong x\u01b0\u1edfng, l\u00e0m vi\u1ec7c \u1edf 380\/220 V. B\u1ed9 c\u1ee7a h\u1ecd g\u1ed3m g\u0103ng class 0, gi\u00e0y c\u00e1ch \u0111i\u1ec7n, b\u00fat th\u1eed \u0111i\u1ec7n hai c\u1ef1c v\u00e0 m\u1ed9t t\u1ea5m <a href=\"https:\/\/www.baohoxanh.com\/tham-cach-dien\">th\u1ea3m cao su l\u00f3t s\u00e0n t\u1ee7 \u0111i\u1ec7n<\/a> tr\u1ea3i c\u1ed1 \u0111\u1ecbnh tr\u01b0\u1edbc c\u1eeda t\u1ee7. Th\u1ea3m \u1edf v\u1ecb tr\u00ed n\u00e0y hay b\u1ecb b\u1ecf qu\u00ean v\u00ec n\u1eb1m d\u01b0\u1edbi ch\u00e2n v\u00e0 b\u00e1m d\u1ea7u; n\u00ean \u0111\u01b0a n\u00f3 v\u00e0o danh m\u1ee5c ki\u1ec3m k\u00ea t\u00e0i s\u1ea3n thay v\u00ec coi l\u00e0 v\u1eadt t\u01b0 ti\u00eau hao.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u00f3m th\u1ee9 hai v\u00e0o tr\u1ea1m bi\u1ebfn \u00e1p v\u00e0 ng\u0103n l\u1ed9 trung th\u1ebf. Ngo\u00e0i <a href=\"https:\/\/www.baohoxanh.com\/gang-tay-cach-dien\">g\u0103ng c\u00e1ch \u0111i\u1ec7n theo c\u1ea5p \u0111i\u1ec7n \u00e1p<\/a> \u1edf c\u1ea5p t\u01b0\u01a1ng \u1ee9ng \u0111i\u1ec7n \u00e1p tr\u1ea1m, b\u1ed9 n\u00e0y b\u1eaft bu\u1ed9c c\u00f3 s\u00e0o c\u00e1ch \u0111i\u1ec7n \u0111\u1ec3 thao t\u00e1c t\u1eeb xa v\u00e0 b\u1ed9 ti\u1ebfp \u0111\u1ecba di \u0111\u1ed9ng \u0111\u1ec3 n\u1ed1i \u0111\u1ea5t ph\u1ea7n v\u1eeba c\u1eaft \u0111i\u1ec7n. <a href=\"https:\/\/www.baohoxanh.com\/ung-cach-dien\">\u1ee6ng c\u00e1ch \u0111i\u1ec7n<\/a> thay cho gi\u00e0y v\u00ec n\u1ec1n tr\u1ea1m th\u01b0\u1eddng \u1ea9m v\u00e0 ng\u01b0\u1eddi th\u1ee3 ph\u1ea3i b\u01b0\u1edbc qua r\u00e3nh c\u00e1p. \u0110\u00f4i \u1ee7ng \u1edf \u0111\u00e2y ch\u1ec9 ch\u1eb7n \u0111\u01b0\u1eddng d\u1eabn d\u00f2ng t\u1eeb ng\u01b0\u1eddi xu\u1ed1ng \u0111\u1ea5t v\u00e0 \u0111\u1ee9ng sau c\u1eaft \u0111i\u1ec7n, th\u1eed x\u00e1c nh\u1eadn, n\u1ed1i \u0111\u1ea5t; n\u00f3 kh\u00f4ng n\u00e2ng ng\u01b0\u1eddi th\u1ee3 l\u00ean m\u1ee9c \u0111\u01b0\u1ee3c ph\u00e9p ch\u1ea1m ph\u1ea7n mang \u0111i\u1ec7n 22 kV. T\u1ea5m che m\u1eb7t v\u00e0 qu\u1ea7n \u00e1o ch\u1ed1ng h\u1ed3 quang \u0111i k\u00e8m khi c\u00f3 thao t\u00e1c \u0111\u00f3ng c\u1eaft.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u00f3m th\u1ee9 ba l\u00e0m vi\u1ec7c l\u01b0u \u0111\u1ed9ng: k\u00e9o d\u00e2y t\u1ea1m, \u0111\u1ea5u n\u1ed1i m\u00e1y h\u00e0n, s\u1eeda chi\u1ebfu s\u00e1ng ngo\u00e0i tr\u1eddi. B\u1ed9 c\u1ee7a h\u1ecd nh\u1eb9 h\u01a1n nh\u01b0ng ph\u1ea3i mang theo \u0111\u1ee7, v\u00ec kh\u00f4ng c\u00f3 t\u1ee7 \u0111\u1ed3 ngh\u1ec1 c\u1ed1 \u0111\u1ecbnh \u1edf hi\u1ec7n tr\u01b0\u1eddng. C\u00e1ch g\u1ecdn nh\u1ea5t l\u00e0 m\u1ed9t t\u00fai c\u1ea5p ph\u00e1t ni\u00eam phong g\u1ed3m g\u0103ng \u0111\u00fang c\u1ea5p, b\u00fat th\u1eed \u0111i\u1ec7n, kh\u00f3a v\u00e0 th\u1ebb treo, k\u00e8m phi\u1ebfu ghi ng\u00e0y th\u1eed nghi\u1ec7m g\u1ea7n nh\u1ea5t c\u1ee7a t\u1eebng m\u00f3n. T\u00fai tr\u1ea3 v\u1ec1 kho cu\u1ed1i ca \u0111\u1ec3 th\u1ee7 kho \u0111\u1ed1i chi\u1ebfu s\u1ed1 l\u01b0\u1ee3ng.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/www.baohoxanh.com\/blog\/wp-content\/uploads\/2016\/08\/gang-tay-cach-dien-ha-ap-regeltex-GCD0007.jpg\" alt=\"G\u0103ng tay c\u00e1ch \u0111i\u1ec7n h\u1ea1 \u00e1p d\u00f9ng khi thao t\u00e1c t\u1ee7 ph\u00e2n ph\u1ed1i\" loading=\"lazy\" width=\"640\" height=\"640\" title=\"\"><figcaption class=\"wp-element-caption\">G\u0103ng d\u00f9ng cho thao t\u00e1c t\u1ee7 h\u1ea1 \u00e1p ph\u1ea3i \u0111\u1ecdc \u0111\u01b0\u1ee3c c\u1ea5p in tr\u00ean th\u00e2n g\u0103ng tr\u01b0\u1edbc khi ph\u00e1t cho th\u1ee3.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Ki\u1ec3m B\u00fat Th\u1eed \u0110i\u1ec7n Tr\u01b0\u1edbc Khi Tin V\u00e0o K\u1ebft Qu\u1ea3 N\u00f3 B\u00e1o<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00fat th\u1eed \u0111i\u1ec7n l\u00e0 m\u00f3n m\u00e0 ng\u01b0\u1eddi th\u1ee3 \u0111\u1eb7t ni\u1ec1m tin g\u1ea7n nh\u01b0 tuy\u1ec7t \u0111\u1ed1i, n\u00ean ch\u00ednh n\u00f3 ph\u1ea3i \u0111\u01b0\u1ee3c ki\u1ec3m ngay tr\u01b0\u1edbc khi d\u00f9ng. Thao t\u00e1c \u0111\u00fang g\u1ed3m ba b\u01b0\u1edbc: th\u1eed b\u00fat tr\u00ean m\u1ed9t ngu\u1ed3n ch\u1eafc ch\u1eafn c\u00f3 \u0111i\u1ec7n, th\u1eed l\u00ean \u0111i\u1ec3m c\u1ea7n ki\u1ec3m, r\u1ed3i th\u1eed l\u1ea1i tr\u00ean ngu\u1ed3n c\u00f3 \u0111i\u1ec7n l\u1ea7n n\u1eefa. N\u1ebfu b\u01b0\u1edbc ba kh\u00f4ng s\u00e1ng ho\u1eb7c kh\u00f4ng k\u00eau, k\u1ebft qu\u1ea3 \u1edf b\u01b0\u1edbc hai m\u1ea5t gi\u00e1 tr\u1ecb v\u00e0 ph\u1ea3i l\u00e0m l\u1ea1i b\u1eb1ng b\u00fat kh\u00e1c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/standards.iteh.ai\/catalog\/standards\/clc\/fae9cfff-1eb5-4ed8-80e9-62c086e098a5\/en-61243-3-2014\" rel=\"nofollow noopener\" target=\"_blank\">IEC 61243-3<\/a> \u00e1p d\u1ee5ng cho b\u00fat th\u1eed \u0111i\u1ec7n hai c\u1ef1c c\u1ea7m tay d\u00f9ng \u1edf \u0111i\u1ec7n \u00e1p xoay chi\u1ec1u kh\u00f4ng qu\u00e1 1.000 V v\u00e0 m\u1ed9t chi\u1ec1u kh\u00f4ng qu\u00e1 1.500 V, t\u1ea7n s\u1ed1 danh \u0111\u1ecbnh t\u1eeb 16 2\/3 Hz \u0111\u1ebfn 500 Hz. Ti\u00eau chu\u1ea9n n\u00eau r\u00f5 lo\u1ea1i b\u00fat n\u00e0y d\u00f9ng trong \u0111i\u1ec1u ki\u1ec7n kh\u00f4 ho\u1eb7c \u1ea9m, c\u1ea3 trong nh\u00e0 l\u1eabn ngo\u00e0i tr\u1eddi, nh\u01b0ng kh\u00f4ng d\u00f9ng khi tr\u1eddi m\u01b0a v\u00e0 kh\u00f4ng d\u00f9ng li\u00ean t\u1ee5c. M\u1ed9t \u0111i\u1ec3m hay b\u1ecb hi\u1ec3u nh\u1ea7m: b\u00fat th\u1eed theo ti\u00eau chu\u1ea9n n\u00e0y kh\u00f4ng \u0111\u01b0\u1ee3c coi l\u00e0 thi\u1ebft b\u1ecb \u0111o.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/www.baohoxanh.com\/blog\/wp-content\/uploads\/2015\/12\/but-thu-dien-chinh-hang-chat-luong.jpg\" alt=\"B\u00fat th\u1eed \u0111i\u1ec7n d\u00f9ng ki\u1ec3m tra c\u00f3 \u0111i\u1ec7n tr\u01b0\u1edbc khi thao t\u00e1c\" loading=\"lazy\" width=\"640\" height=\"640\" title=\"\"><figcaption class=\"wp-element-caption\">B\u00fat th\u1eed \u0111i\u1ec7n ch\u1ec9 tr\u1ea3 l\u1eddi c\u00e2u h\u1ecfi c\u00f3 \u0111i\u1ec7n hay kh\u00f4ng, v\u00e0 b\u1ea3n th\u00e2n n\u00f3 ph\u1ea3i \u0111\u01b0\u1ee3c th\u1eed l\u1ea1i tr\u00ean ngu\u1ed3n \u0111\u00e3 bi\u1ebft.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Giao Vi\u1ec7c Ki\u1ec3m Tr\u01b0\u1edbc Ca Cho \u0110\u00fang Ng\u01b0\u1eddi V\u00e0 Ghi V\u00e0o S\u1ed5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00e2u ki\u1ec3m tr\u01b0\u1edbc ca th\u01b0\u1eddng h\u1ecfng \u1edf ch\u1ed7 ph\u00e2n vai ch\u1ee9 \u00edt khi h\u1ecfng \u1edf ph\u1ea7n k\u1ef9 thu\u1eadt. N\u1ebfu b\u1ea3ng ch\u1ec9 ghi m\u1ed9t d\u00f2ng &#8220;ki\u1ec3m tra trang b\u1ecb tr\u01b0\u1edbc khi l\u00e0m vi\u1ec7c&#8221; th\u00ec r\u1ed1t cu\u1ed9c kh\u00f4ng ai ki\u1ec3m, v\u00ec vi\u1ec7c \u0111\u00f3 kh\u00f4ng thu\u1ed9c v\u1ec1 ai c\u1ea3. C\u00e1ch g\u1ecdn l\u00e0 g\u00e1n m\u1ed7i m\u00f3n cho m\u1ed9t vai c\u1ee5 th\u1ec3: ng\u01b0\u1eddi tr\u1ef1c ti\u1ebfp d\u00f9ng, t\u1ed5 tr\u01b0\u1edfng, ho\u1eb7c th\u1ee7 kho. Ba vai n\u00e0y so\u00e1t ba l\u1edbp kh\u00e1c nhau v\u00e0 kh\u00f4ng thay th\u1ebf cho nhau \u0111\u01b0\u1ee3c.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1ch ph\u00e2n vai d\u01b0\u1edbi \u0111\u00e2y \u00e1p d\u1ee5ng \u0111\u01b0\u1ee3c cho ph\u1ea7n l\u1edbn t\u1ed5 \u0111i\u1ec7n trong nh\u00e0 m\u00e1y, v\u00e0 ch\u1ec9 c\u1ea7n m\u1ed9t cu\u1ed1n s\u1ed5 ho\u1eb7c m\u1ed9t bi\u1ec3u m\u1eabu duy nh\u1ea5t \u0111\u1ec3 ghi l\u1ea1i:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Ng\u01b0\u1eddi tr\u1ef1c ti\u1ebfp d\u00f9ng, \u0111\u1ea7u m\u1ed7i ca<\/strong>: nh\u00ecn v\u00e0 s\u1edd kh\u1eafp b\u1ec1 m\u1eb7t g\u0103ng, \u1ee7ng, th\u1ea3m \u0111\u1ec3 t\u00ecm v\u1ebft c\u1eaft, ch\u1ed7 r\u00e1ch, ch\u1ed7 ph\u1ed3ng r\u1ed9p; cu\u1ed9n c\u1ed5 g\u0103ng \u0111\u1ec3 n\u00e9n kh\u00ed trong l\u00f2ng g\u0103ng m\u00e0 d\u00f2 l\u1ed7 th\u1ee7ng, kh\u00f4ng th\u1ed5i b\u1eb1ng mi\u1ec7ng; b\u1ea5m th\u1eed b\u00fat tr\u00ean ngu\u1ed3n c\u00f3 \u0111i\u1ec7n.<\/li><li><strong>T\u1ed5 tr\u01b0\u1edfng, \u0111\u1ea7u m\u1ed7i ca<\/strong>: \u0111\u1ed1i chi\u1ebfu c\u1ea5p class in tr\u00ean t\u1eebng m\u00f3n v\u1edbi \u0111i\u1ec7n \u00e1p danh \u0111\u1ecbnh ghi trong phi\u1ebfu c\u00f4ng vi\u1ec7c, k\u00fd x\u00e1c nh\u1eadn tr\u01b0\u1edbc khi t\u1ed5 v\u00e0o v\u1ecb tr\u00ed.<\/li><li><strong>Th\u1ee7 kho, theo th\u00e1ng<\/strong>: so\u00e1t h\u1ea1n th\u1eed nghi\u1ec7m \u0111\u1ecbnh k\u1ef3 tr\u00ean phi\u1ebfu c\u1ee7a t\u1eebng m\u00f3n, t\u00e1ch ri\u00eang m\u00f3n qu\u00e1 h\u1ea1n, ghi ng\u00e0y nh\u1eadp v\u00e0 ng\u00e0y c\u1ea5p ph\u00e1t c\u1ee7a t\u1eebng l\u00f4.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Lo\u1ea1i Kh\u1ecfi T\u1ee7 C\u1ea5p Ph\u00e1t Nh\u1eefng M\u00f3n \u0110\u00e3 M\u1ea5t Kh\u1ea3 N\u0103ng C\u00e1ch \u0110i\u1ec7n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t m\u00f3n c\u00e1ch \u0111i\u1ec7n hi\u1ebfm khi h\u1ecfng d\u1ee9t kho\u00e1t m\u00e0 xu\u1ed1ng c\u1ea5p d\u1ea7n, n\u00ean ti\u00eau ch\u00ed lo\u1ea1i b\u1ecf ph\u1ea3i vi\u1ebft th\u00e0nh d\u1ea5u hi\u1ec7u quan s\u00e1t \u0111\u01b0\u1ee3c. V\u1ebft c\u1eaft, v\u1ebft r\u00e1ch, ch\u1ed7 ph\u1ed3ng r\u1ed9p, ch\u1ed7 m\u1ecfng b\u1ea5t th\u01b0\u1eddng hay l\u1ed7 kim \u0111\u1ec1u l\u00e0 c\u0103n c\u1ee9 lo\u1ea1i ngay, kh\u00f4ng ch\u1edd t\u1edbi k\u1ef3 th\u1eed nghi\u1ec7m. D\u1ea7u m\u1ee1, dung m\u00f4i v\u00e0 h\u00f3a ch\u1ea5t \u0103n m\u00f2n b\u00e1m l\u00e2u tr\u00ean cao su c\u0169ng l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng c\u00e1ch \u0111i\u1ec7n, n\u00ean m\u00f3n d\u00ednh h\u00f3a ch\u1ea5t ph\u1ea3i t\u00e1ch kh\u1ecfi t\u1ee7 d\u00f9 b\u1ec1 m\u1eb7t c\u00f2n nguy\u00ean.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Nh\u00e3n c\u1ea5p class m\u1edd ho\u1eb7c bong m\u1ea5t l\u00e0 l\u00fd do lo\u1ea1i b\u1ecf th\u1ee9 hai, ngang h\u00e0ng v\u1edbi h\u01b0 h\u1ecfng c\u01a1 h\u1ecdc. Kh\u00f4ng c\u00f3 nh\u00e3n th\u00ec kh\u00f4ng ai bi\u1ebft m\u00f3n \u0111\u00f3 d\u00f9ng cho \u0111i\u1ec7n \u00e1p n\u00e0o, v\u00e0 trong b\u1ea3ng c\u1ea5p ph\u00e1t n\u00f3 th\u00e0nh m\u1ed9t \u00f4 tr\u1ed1ng. M\u00f3n b\u1ecb lo\u1ea1i n\u00ean c\u1eaft b\u1ecf ho\u1eb7c \u0111\u00e1nh d\u1ea5u h\u1ee7y ngay t\u1ea1i ch\u1ed7, tr\u00e1nh b\u1ecb nh\u1eb7t l\u1ea1i d\u00f9ng t\u1ea1m. Ghi l\u00fd do lo\u1ea1i v\u00e0o s\u1ed5 \u0111\u1ec3 sau n\u00e0y bi\u1ebft nh\u00f3m n\u00e0o hao nhanh v\u00e0 hao v\u00ec l\u00fd do g\u00ec.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/www.baohoxanh.com\/blog\/wp-content\/uploads\/2016\/07\/ung-cao-su-cach-dien.jpg\" alt=\"\u1ee6ng cao su c\u00e1ch \u0111i\u1ec7n d\u00f9ng khi \u0111i l\u1ea1i trong tr\u1ea1m bi\u1ebfn \u00e1p\" loading=\"lazy\" width=\"640\" height=\"640\" title=\"\"><figcaption class=\"wp-element-caption\">\u1ee6ng c\u00e1ch \u0111i\u1ec7n ch\u1ecbu m\u00e0i m\u00f2n v\u00e0 \u1ea9m nhi\u1ec1u h\u01a1n g\u0103ng, n\u00ean c\u1ea7n so\u00e1t m\u1eb7t \u0111\u1ebf v\u00e0 ph\u1ea7n g\u1ea5p c\u1ed5 \u1ee7ng m\u1ed7i ca.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Tra Chu K\u1ef3 Th\u1eed Nghi\u1ec7m \u0110\u1ecbnh K\u1ef3 Theo T\u00e0i Li\u1ec7u \u0110i K\u00e8m L\u00f4 H\u00e0ng<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Th\u1eed nghi\u1ec7m \u0111\u1ecbnh k\u1ef3 l\u00e0 ph\u00e9p th\u1eed \u0111i\u1ec7n m\u00f4i th\u1ef1c hi\u1ec7n t\u1ea1i ph\u00f2ng th\u00ed nghi\u1ec7m, kh\u00e1c h\u1eb3n vi\u1ec7c so\u00e1t b\u1eb1ng m\u1eaft tr\u01b0\u1edbc ca v\u00e0 kh\u00f4ng thay th\u1ebf cho nhau. V\u1edbi g\u0103ng theo IEC 60903, h\u01b0\u1edbng d\u1eabn th\u1ef1c h\u00e0nh ph\u1ed5 bi\u1ebfn \u1edf ch\u00e2u \u00c2u n\u00eau m\u1ed1c th\u1eed l\u1ea1i sau m\u1ed7i s\u00e1u th\u00e1ng k\u1ec3 t\u1eeb khi g\u0103ng \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o s\u1eed d\u1ee5ng, c\u00f2n g\u0103ng nguy\u00ean trong kho ch\u01b0a c\u1ea5p ph\u00e1t th\u00ec m\u1ed1c l\u00e0 m\u01b0\u1eddi hai th\u00e1ng. \u0110\u00e2y l\u00e0 khuy\u1ebfn c\u00e1o th\u1ef1c h\u00e0nh, kh\u00f4ng ph\u1ea3i quy \u0111\u1ecbnh ph\u00e1p l\u00fd t\u1ea1i Vi\u1ec7t Nam.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u00ec v\u1eady, chu k\u1ef3 ghi v\u00e0o b\u1ea3ng c\u1ea5p ph\u00e1t ph\u1ea3i l\u1ea5y t\u1eeb hai ngu\u1ed3n: quy \u0111\u1ecbnh hi\u1ec7n h\u00e0nh \u0111ang \u00e1p d\u1ee5ng cho \u0111\u01a1n v\u1ecb, v\u00e0 t\u00e0i li\u1ec7u k\u1ef9 thu\u1eadt \u0111i k\u00e8m ch\u00ednh l\u00f4 h\u00e0ng \u0111\u00f3. Nh\u00e0 s\u1ea3n xu\u1ea5t th\u01b0\u1eddng in m\u1ed1c th\u1eed l\u1ea1i c\u00f9ng h\u1ea1n l\u01b0u kho ngay tr\u00ean h\u1ed9p ho\u1eb7c phi\u1ebfu xu\u1ea5t x\u01b0\u1edfng; ch\u00e9p \u0111\u00fang con s\u1ed1 \u0111\u00f3 v\u00e0o phi\u1ebfu theo d\u00f5i c\u1ee7a t\u1eebng m\u00f3n l\u00e0 c\u00e1ch ch\u1eafc ch\u1eafn nh\u1ea5t. Khi hai ngu\u1ed3n l\u1ec7ch nhau, l\u1ea5y m\u1ed1c ng\u1eafn h\u01a1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea3ng c\u1ea5p ph\u00e1t ch\u1ec9 c\u00f3 gi\u00e1 tr\u1ecb khi m\u1ed7i d\u00f2ng trong \u0111\u00f3 tr\u1ea3 l\u1eddi \u0111\u01b0\u1ee3c ba c\u00e2u: m\u00f3n n\u00e0y thu\u1ed9c c\u1ea5p n\u00e0o, ai \u0111\u00e3 so\u00e1t n\u00f3 s\u00e1ng nay, v\u00e0 h\u1ea1n th\u1eed nghi\u1ec7m c\u00f2n l\u1ea1i bao l\u00e2u.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Thi\u1ebft b\u1ecb an to\u00e0n \u0111i\u1ec7n cho ng\u01b0\u1eddi s\u1eed d\u1ee5ng<\/p>\n","protected":false},"author":969,"featured_media":33673,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6934],"tags":[186,595],"class_list":["post-1829","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-xoa-gsc","tag-do-bao-ho","tag-thiet-bi-an-toan-dien"],"_links":{"self":[{"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/posts\/1829","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/users\/969"}],"replies":[{"embeddable":true,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/comments?post=1829"}],"version-history":[{"count":23,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/posts\/1829\/revisions"}],"predecessor-version":[{"id":98142,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/posts\/1829\/revisions\/98142"}],"wp:attachment":[{"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/media?parent=1829"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/categories?post=1829"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.baohoxanh.com\/blog\/wp-json\/wp\/v2\/tags?post=1829"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}