{"id":503,"date":"2024-08-14T16:41:17","date_gmt":"2024-08-14T14:41:17","guid":{"rendered":"https:\/\/gezhi-tech.com\/?p=503"},"modified":"2025-09-27T17:50:23","modified_gmt":"2025-09-27T15:50:23","slug":"clause-3-how-to-understand-the-definition-of-class-i-appliance","status":"publish","type":"post","link":"https:\/\/gezhi-tech.com\/vi\/clause-3-how-to-understand-the-definition-of-class-i-appliance\/","title":{"rendered":"Kho\u1ea3n 3 \u2013 C\u00e1ch hi\u1ec3u \u0111\u1ecbnh ngh\u0129a \u201cthi\u1ebft b\u1ecb lo\u1ea1i I\u201d"},"content":{"rendered":"thi\u1ebft b\u1ecb c\u1ea5p I: thi\u1ebft b\u1ecb trong \u0111\u00f3 vi\u1ec7c b\u1ea3o v\u1ec7 ch\u1ed1ng \u0111i\u1ec7n gi\u1eadt kh\u00f4ng ch\u1ec9 d\u1ef1a v\u00e0o c\u00e1ch \u0111i\u1ec7n c\u01a1 b\u1ea3n m\u00e0 c\u00f2n bao g\u1ed3m bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba an to\u00e0n b\u1ed5 sung, trong \u0111\u00f3 c\u00e1c b\u1ed9 ph\u1eadn d\u1eabn \u0111i\u1ec7n ch\u1ea1m t\u1edbi \u0111\u01b0\u1ee3c \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi d\u00e2y d\u1eabn n\u1ed1i \u0111\u1ea5t b\u1ea3o v\u1ec7 trong h\u1ec7 th\u1ed1ng \u0111i d\u00e2y c\u1ed1 \u0111\u1ecbnh c\u1ee7a h\u1ec7 th\u1ed1ng l\u1eafp \u0111\u1eb7t theo c\u00e1ch nh\u01b0 v\u1eady c\u00e1c b\u1ed9 ph\u1eadn d\u1eabn \u0111i\u1ec7n c\u00f3 th\u1ec3 ti\u1ebfp c\u1eadn \u0111\u01b0\u1ee3c kh\u00f4ng th\u1ec3 mang \u0111i\u1ec7n trong tr\u01b0\u1eddng h\u1ee3p c\u00e1ch \u0111i\u1ec7n c\u01a1 b\u1ea3n b\u1ecb h\u1ecfng<br><em>L\u01afU \u00dd \u0110i\u1ec1u kho\u1ea3n n\u00e0y bao g\u1ed3m d\u00e2y n\u1ed1i \u0111\u1ea5t b\u1ea3o v\u1ec7 trong d\u00e2y ngu\u1ed3n.<\/em><br>\nT\u1eeb kh\u00e1i ni\u1ec7m b\u1ea3o v\u1ec7 k\u00e9p, c\u00f3 hai bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba \u0111\u1ec3 b\u1ea3o v\u1ec7 ch\u1ed1ng \u0111i\u1ec7n gi\u1eadt. Bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba \u0111\u1ea7u ti\u00ean l\u00e0 c\u00e1ch \u0111i\u1ec7n c\u01a1 b\u1ea3n v\u00e0 bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba th\u1ee9 hai l\u00e0 n\u1ed1i \u0111\u1ea5t. N\u1ebfu c\u00e1ch \u0111i\u1ec7n c\u01a1 b\u1ea3n b\u1ecb h\u1ecfng (ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ee9t v\u1ecf d\u00e2y b\u00ean trong ho\u1eb7c h\u1ecfng c\u00e1ch \u0111i\u1ec7n gi\u1eefa cu\u1ed9n d\u00e2y v\u00e0 \u0111\u0129a stato trong \u0111\u1ed9ng c\u01a1), d\u00f2ng \u0111i\u1ec7n nguy hi\u1ec3m s\u1ebd ch\u1ea1y qua c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i c\u00f3 th\u1ec3 ti\u1ebfp c\u1eadn \u0111\u01b0\u1ee3c, ch\u1eb3ng h\u1ea1n nh\u01b0 v\u1ecf b\u1ecdc c\u1ee7a thi\u1ebft b\u1ecb ho\u1eb7c v\u1ecf b\u1ecdc. c\u1ee7a \u0111\u1ed9ng c\u01a1 qu\u1ea1t. Do \u0111\u00f3, n\u1ebfu c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i \u0111\u01b0\u1ee3c n\u1ed1i \u0111\u1ea5t, d\u00f2ng \u0111i\u1ec7n s\u1ebd \u0111\u01b0\u1ee3c chuy\u1ec3n qua n\u1ed1i \u0111\u1ea5t v\u00e0 s\u1ebd kh\u00f4ng ch\u1ea1y qua c\u01a1 th\u1ec3 con ng\u01b0\u1eddi, v\u00ec \u0111i\u1ec7n tr\u1edf gi\u1eefa c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i c\u00f3 th\u1ec3 ti\u1ebfp c\u1eadn c\u1ee7a thi\u1ebft b\u1ecb v\u00e0 d\u00e2y d\u1eabn n\u1ed1i \u0111\u1ea5t b\u00ean ngo\u00e0i th\u01b0\u1eddng r\u1ea5t nh\u1ecf so v\u1edbi con ng\u01b0\u1eddi. th\u00e2n h\u00ecnh. D\u00f2ng \u0111i\u1ec7n s\u1ebd ch\u1ea1y qua \u0111\u01b0\u1eddng d\u1eabn c\u00f3 \u0111i\u1ec7n tr\u1edf th\u1ea5p, t\u1ee9c l\u00e0 s\u1ebd b\u1ecb pha lo\u00e3ng ra l\u01b0\u1edbi n\u1ed1i \u0111\u1ea5t b\u00ean ngo\u00e0i th\u00f4ng qua d\u00e2y d\u1eabn n\u1ed1i \u0111\u1ea5t. D\u00e2y d\u1eabn n\u1ed1i \u0111\u1ea5t b\u1ea3o v\u1ec7 trong h\u1ec7 th\u1ed1ng d\u00e2y c\u1ed1 \u0111\u1ecbnh c\u1ee7a h\u1ec7 th\u1ed1ng l\u1eafp \u0111\u1eb7t m\u00e0 ch\u00fang t\u00f4i \u0111\u1ec1 c\u1eadp \u1edf \u0111\u00e2y ch\u00ednh l\u00e0 d\u00e2y n\u1ed1i \u0111\u1ea5t b\u1ea3o v\u1ec7 trong h\u1ec7 th\u1ed1ng d\u00e2y c\u1ed1 \u0111\u1ecbnh, hi\u1ec3u \u0111\u01a1n gi\u1ea3n l\u00e0 \u1ed5 c\u1eafm n\u1ed1i \u0111\u1ea5t trong \u1ed5 c\u1eafm \u0111i\u1ec7n gia \u0111\u00ecnh ch\u00fang ta. D\u00f2ng \u0111i\u1ec7n ch\u1ea1y xu\u1ed1ng tr\u00e1i \u0111\u1ea5t th\u00f4ng qua \u1ed5 c\u1eafm n\u00e0y. Tr\u00e1i \u0111\u1ea5t l\u00e0 m\u1ed9t ch\u1ea5t d\u1eabn \u0111i\u1ec7n t\u1ed1t v\u00f4 h\u1ea1n. Ch\u00fang ta c\u00f3 th\u1ec3 hi\u1ec3u r\u1eb1ng tr\u00e1i \u0111\u1ea5t l\u00e0m lo\u00e3ng \u0111i nh\u1eefng \u0111i\u1ec7n t\u00edch n\u00e0y, hay ch\u00fang ta c\u00f3 c\u00f9ng \u0111i\u1ec7n th\u1ebf v\u1edbi tr\u00e1i \u0111\u1ea5t v\u00ec ch\u00fang ta \u0111ang \u0111\u1ee9ng tr\u00ean tr\u00e1i \u0111\u1ea5t. Ch\u1ec9 khi c\u00f3 s\u1ef1 kh\u00e1c bi\u1ec7t ti\u1ec1m n\u0103ng th\u00ec d\u00f2ng \u0111i\u1ec7n m\u1edbi \u0111\u01b0\u1ee3c t\u1ea1o ra. V\u00ec v\u1eady, s\u1ebd kh\u00f4ng c\u00f3 d\u00f2ng \u0111i\u1ec7n ch\u1ea1y qua c\u01a1 th\u1ec3 con ng\u01b0\u1eddi v\u00e0 kh\u00f4ng c\u00f3 nguy hi\u1ec3m. \u0110\u00fang nh\u01b0 t\u00ean g\u1ecdi, d\u00e2y d\u1eabn n\u1ed1i \u0111\u1ea5t b\u1ea3o v\u1ec7 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 b\u1ea3o v\u1ec7, \u0111\u00f3 l\u00e0 nh\u1eefng g\u00ec ch\u00fang t\u00f4i \u0111\u00e3 \u0111\u1ec1 c\u1eadp \u1edf tr\u00ean. Khi x\u1ea3y ra s\u1ef1 c\u1ed1 r\u00f2 r\u1ec9, d\u00f2ng \u0111i\u1ec7n r\u00f2 r\u1ec9 c\u00f3 th\u1ec3 truy\u1ec1n xu\u1ed1ng \u0111\u1ea5t.<br>V\u00ed d\u1ee5: V\u1ec1 c\u01a1 b\u1ea3n, c\u00e1c thi\u1ebft b\u1ecb c\u00f3 v\u1ecf kim lo\u1ea1i l\u1edbn \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf l\u00e0 thi\u1ebft b\u1ecb C\u1ea5p I, ch\u1eb3ng h\u1ea1n nh\u01b0 d\u00e0n n\u00f3ng c\u1ee7a m\u00e1y \u0111i\u1ec1u h\u00f2a kh\u00f4ng kh\u00ed, b\u1ebfp n\u01b0\u1edbng \u0111i\u1ec7n, v.v. Tuy nhi\u00ean, m\u1ed9t s\u1ed1 s\u1ea3n ph\u1ea9m m\u00e1y h\u00fat m\u00f9i c\u00f3 v\u1ecf kim lo\u1ea1i c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf l\u00e0 thi\u1ebft b\u1ecb C\u1ea5p II m\u00e0 kh\u00f4ng c\u1ea7n n\u1ed1i \u0111\u1ea5t. <br>D\u00e2y m\u00e0u xanh l\u00e1 c\u00e2y trong h\u00ecnh b\u00ean d\u01b0\u1edbi l\u00e0 d\u00e2y d\u1eabn n\u1ed1i \u0111\u1ea5t ho\u1eb7c d\u00e2y d\u1eabn n\u1ed1i \u0111\u1ea5t.<style>\/*! ph\u1ea7n t\u1eed - v3.23.0 - 05-08-2024 *\/ v\u00e0 lt;br \/ v\u00e0 lt;br.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px} .elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style><figure class=\"wp-block-image\"><br>\n<img decoding=\"async\" src=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/Electrical-Wiring-Diagrams-for-Air-Conditioning-Systems-\u2013-Part-Two.jpg\" alt=\"\"\/><br>\n<\/figure><br>\nD\u00e0n n\u00f3ng \u0111i\u1ec1u h\u00f2a c\u00f3 v\u1ecf kim lo\u1ea1i<br>\n<figure class=\"wp-block-image\"><br>\n<img decoding=\"async\" src=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/outdoor-unit.jpg\" alt=\"\"\/><br>\n<\/figure><br>\nVi\u1ec7c n\u1ed1i \u0111\u1ea5t b\u1ea3o v\u1ec7 ng\u01b0\u1eddi s\u1eed d\u1ee5ng thi\u1ebft b\u1ecb kh\u1ecfi b\u1ecb \u0111i\u1ec7n gi\u1eadt b\u1eb1ng c\u00e1ch n\u00e0o?<br>\n<br>\nN\u1ebfu m\u1ed9t thi\u1ebft b\u1ecb c\u00f3 v\u1ecf kim lo\u1ea1i (v\u00ed d\u1ee5 nh\u01b0 m\u00e1y n\u01b0\u1edbng b\u00e1nh m\u1ef3) b\u1ecb l\u1ed7i khi\u1ebfn d\u00e2y \u0111i\u1ec7n ti\u1ebfp x\u00fac v\u1edbi v\u1ecf kim lo\u1ea1i, n\u1ebfu v\u1ecf kim lo\u1ea1i kh\u00f4ng \u0111\u01b0\u1ee3c n\u1ed1i \u0111\u1ea5t, n\u00f3 s\u1ebd tr\u1edf n\u00ean c\u00f3 \u0111i\u1ec7n v\u00e0 b\u1ea5t k\u1ef3 ai ch\u1ea1m v\u00e0o s\u1ebd b\u1ecb \u0111i\u1ec7n gi\u1eadt.<br>\n<br>\nTuy nhi\u00ean, n\u1ebfu l\u1ed7i t\u01b0\u01a1ng t\u1ef1 x\u1ea3y ra \u1edf m\u00e1y n\u01b0\u1edbng b\u00e1nh m\u1ef3 c\u00f3 v\u1ecf kim lo\u1ea1i \u0111\u01b0\u1ee3c n\u1ed1i \u0111\u1ea5t th\u00ec l\u00fac n\u00e0y ch\u00fang ta s\u1ebd b\u1ecb \u0111o\u1ea3n m\u1ea1ch v\u00e0 d\u00f2ng \u0111i\u1ec7n cao s\u1ebd ch\u1ea1y qua, do \u0111\u00f3 ng\u1eaft c\u1ea7u dao v\u00e0 lo\u1ea1i b\u1ecf t\u00ecnh tr\u1ea1ng nguy hi\u1ec3m. Kh\u00f4ng c\u00f3 l\u00fac n\u00e0o v\u1ee5 \u00e1n tr\u1edf n\u00ean s\u1ed1ng \u0111\u1ed9ng. H\u01a1n n\u1eefa, b\u00e2y gi\u1edd b\u1ea1n \u0111\u00e3 bi\u1ebft c\u00f3 l\u1ed7i v\u00e0 c\u00f3 th\u1ec3 nh\u1edd th\u1ee3 \u0111i\u1ec7n s\u1eeda ch\u1eefa.<br>\n<br>\n\u0110i\u1ec7n tr\u1edf c\u1ee7a c\u01a1 th\u1ec3 con ng\u01b0\u1eddi cao t\u1edbi 100000 ohm trong \u0111i\u1ec1u ki\u1ec7n kh\u00f4 r\u00e1o v\u00e0 c\u00f3 th\u1ec3 gi\u1ea3m xu\u1ed1ng th\u1ea5p t\u1edbi 1000 ohm \u0111\u1ed1i v\u1edbi da \u01b0\u1edbt v\u00e0 n\u1ee9t n\u1ebb.<br>\n<br>\n\u0110i\u1ec7n tr\u1edf c\u1ee7a \u0111\u01b0\u1eddng \u0111\u1ea5t \u0111\u01b0\u1ee3c gi\u1eef \u1edf m\u1ee9c th\u1ea5p \u1edf m\u1ee9c 1 ohm. B\u00e2y gi\u1edd khi x\u1ea3y ra s\u1ef1 c\u1ed1 ho\u1eb7c c\u00f3 s\u1ef1 r\u00f2 r\u1ec9 d\u00f2ng \u0111i\u1ec7n, trong h\u1ec7 th\u1ed1ng n\u1ed1i \u0111\u1ea5t, d\u00f2ng \u0111i\u1ec7n n\u00e0y s\u1ebd ch\u1ea1y t\u1eeb d\u00e2y d\u1eabn n\u1ed1i \u0111\u1ea5t t\u1ee9c l\u00e0 n\u1ed1i \u0111\u1ea5t. Trong h\u1ec7 th\u1ed1ng kh\u00f4ng c\u00f3 n\u1ed1i \u0111\u1ea5t, s\u1ef1 ch\u1ea1m v\u00e0o c\u1ee7a con ng\u01b0\u1eddi c\u00f3 th\u1ec3 t\u1ea1o ra \u0111\u01b0\u1eddng d\u1eabn c\u00f3 \u0111i\u1ec7n tr\u1edf nh\u1ecf nh\u1ea5t \u0111\u1ed1i v\u1edbi d\u00f2ng \u0111i\u1ec7n s\u1ef1 c\u1ed1 ho\u1eb7c d\u00f2ng \u0111i\u1ec7n r\u00f2 r\u1ec9.<br>\n<br>\nDo \u0111\u00f3, vi\u1ec7c n\u1ed1i \u0111\u1ea5t ch\u1eafc ch\u1eafn s\u1ebd gi\u00fap b\u1ea1n tr\u00e1nh b\u1ecb \u0111i\u1ec7n gi\u1eadt.<br>\n<figure class=\"wp-block-image is-resized\"><br>\n<img decoding=\"async\" src=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/In-what-way-does-earthing-protect-the-user-of-an-appliance-from-an-electric-shock.jpg\" alt=\"\" style=\"width:661px;height:auto\"\/><br>\n<\/figure><figure class=\"wp-block-image is-resized\"><br>\n<img decoding=\"async\" src=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/electrical-grounding6_1520827200.gif\" alt=\"\" style=\"width:655px;height:auto\"\/><br>\n<\/figure><figure class=\"wp-block-image\"><br>\n<img decoding=\"async\" src=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/what-is-electrical-grounding-1.jpg\" alt=\"\"\/><br>\n<\/figure><figure class=\"wp-block-image\"><br>\n<img decoding=\"async\" src=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/HomeEarthRodAustralia1-935x1024.jpg\" alt=\"\"\/><br>\n<\/figure><figure class=\"wp-block-image is-resized\"><br>\n<img decoding=\"async\" src=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/Fundamentals-of-Electricity.jpg\" alt=\"\" style=\"width:536px;height:auto\"\/><br>\n<\/figure><br>\n\u0110\u1ed1i v\u1edbi ng\u01b0\u1eddi d\u00f9ng th\u00f4ng th\u01b0\u1eddng, n\u1ebfu s\u1ea3n ph\u1ea9m \u0111\u01b0\u1ee3c trang b\u1ecb ph\u00edch c\u1eafm c\u00f3 ba ch\u00e2n th\u00ec \u0111\u00f3 th\u01b0\u1eddng l\u00e0 thi\u1ebft b\u1ecb Lo\u1ea1i I.<br>C\u00f3 hai tr\u01b0\u1eddng h\u1ee3p \u0111\u1eb7c bi\u1ec7t<br>C\u00e1i \u0111\u1ea7u ti\u00ean, ch\u1eb3ng h\u1ea1n nh\u01b0 ph\u00edch c\u1eafm c\u1ee7a V\u01b0\u01a1ng qu\u1ed1c Anh, th\u01b0\u1eddng c\u00f3 ba ch\u00e2n, m\u1ed9t trong s\u1ed1 \u0111\u00f3 d\u00e0i h\u01a1n hai ch\u00e2n c\u00f2n l\u1ea1i. Ch\u00e2n d\u00e0i nh\u1ea5t n\u00e0y \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 n\u1ed1i \u0111\u1ea5t. Tuy nhi\u00ean, \u0111\u00f4i khi ch\u00e2n n\u1ed1i \u0111\u1ea5t c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c thay th\u1ebf b\u1eb1ng v\u1eadt li\u1ec7u phi kim lo\u1ea1i. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, thi\u1ebft b\u1ecb kh\u00f4ng c\u00f3 bi\u1ec7n ph\u00e1p n\u1ed1i \u0111\u1ea5t v\u00e0 s\u1ea3n ph\u1ea9m kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh l\u00e0 thi\u1ebft b\u1ecb c\u1ea5p I. Ngo\u00e0i ra, ch\u00e2n c\u1eafm c\u00f3 th\u1ec3 v\u1eabn l\u00e0 kim lo\u1ea1i nh\u01b0ng b\u00ean trong kh\u00f4ng c\u00f3 \u0111\u1ea7u n\u1ed1i \u0111\u1ea5t. T\u01b0\u01a1ng t\u1ef1, thi\u1ebft b\u1ecb kh\u00f4ng th\u1ec3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh l\u00e0 thi\u1ebft b\u1ecb lo\u1ea1i I.<br>\u1ea2nh b\u00ean d\u01b0\u1edbi hi\u1ec3n th\u1ecb ph\u00edch c\u1eafm n\u00e0y.<br>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\"><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><figure class=\"wp-block-image size-full\"><br>\n<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/1-PC-UK-Electrical-Plug-13A-250V-3-Pins-Wiring-Assembly-Plugs-High-Quality-UK-Dubai.webp\" alt=\"\" class=\"wp-image-514\" srcset=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/1-PC-UK-Electrical-Plug-13A-250V-3-Pins-Wiring-Assembly-Plugs-High-Quality-UK-Dubai.webp 800w, https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/1-PC-UK-Electrical-Plug-13A-250V-3-Pins-Wiring-Assembly-Plugs-High-Quality-UK-Dubai-300x300.webp 300w, https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/1-PC-UK-Electrical-Plug-13A-250V-3-Pins-Wiring-Assembly-Plugs-High-Quality-UK-Dubai-150x150.webp 150w, https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/1-PC-UK-Electrical-Plug-13A-250V-3-Pins-Wiring-Assembly-Plugs-High-Quality-UK-Dubai-768x768.webp 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><br>\n<\/figure><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><figure class=\"wp-block-image size-full\"><br>\n<img loading=\"lazy\" decoding=\"async\" width=\"256\" height=\"197\" src=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/BSI-plug-with-a-metal-earthing-pin.jpg\" alt=\"\" class=\"wp-image-515\"\/><br>\n<\/figure><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><figure class=\"wp-block-image size-full\"><br>\n<img loading=\"lazy\" decoding=\"async\" width=\"199\" height=\"253\" src=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/UK-3-pin-electrical-plug-13-amp-fuse.jpg\" alt=\"\" class=\"wp-image-518\"\/><br>\n<\/figure><\/div><\/div><div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\"><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><figure class=\"wp-block-image size-full is-resized\"><br>\n<img loading=\"lazy\" decoding=\"async\" width=\"225\" height=\"225\" src=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/BSI-plug-with-a-plastic-earthing-pin.jpg\" alt=\"\" class=\"wp-image-516\" style=\"width:337px;height:auto\" srcset=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/BSI-plug-with-a-plastic-earthing-pin.jpg 225w, https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/BSI-plug-with-a-plastic-earthing-pin-150x150.jpg 150w\" sizes=\"auto, (max-width: 225px) 100vw, 225px\" \/><br>\n<figcaption class=\"wp-element-caption\">thay th\u1ebf ch\u00e2n n\u1ed1i \u0111\u1ea5t kim lo\u1ea1i b\u1eb1ng ch\u00e2n nh\u1ef1a trong ph\u00edch c\u1eafm BSI<\/figcaption><\/figure><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><figure class=\"wp-block-image size-full is-resized\"><br>\n<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"274\" src=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/class-2-BSI-plug.jpg\" alt=\"\" class=\"wp-image-517\" style=\"width:370px;height:auto\"\/><br>\n<figcaption class=\"wp-element-caption\">thay th\u1ebf ch\u00e2n n\u1ed1i \u0111\u1ea5t kim lo\u1ea1i b\u1eb1ng ch\u00e2n nh\u1ef1a trong ph\u00edch c\u1eafm BSI<\/figcaption><\/figure><\/div><\/div><br>\nTh\u1ee9 hai l\u00e0 thi\u1ebft b\u1ecb c\u00f3 bi\u1ec7n ph\u00e1p n\u1ed1i \u0111\u1ea5t, nh\u01b0ng bi\u1ec7n ph\u00e1p n\u1ed1i \u0111\u1ea5t n\u00e0y \u0111\u01b0\u1ee3c n\u1ed1i tr\u1ef1c ti\u1ebfp v\u1edbi d\u00e2y d\u1eabn n\u1ed1i \u0111\u1ea5t b\u1ea3o v\u1ec7 t\u1eeb m\u1ed9t v\u1ecb tr\u00ed c\u1ed1 \u0111\u1ecbnh tr\u00ean PCB. C\u00e1c b\u1ed9 ph\u1eadn kh\u00e1c c\u1ee7a thi\u1ebft b\u1ecb, k\u1ec3 c\u1ea3 c\u00e1c b\u1ed9 ph\u1eadn kim lo\u1ea1i ch\u1ea1m t\u1edbi \u0111\u01b0\u1ee3c, n\u1ebfu c\u00f3, kh\u00f4ng \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi b\u1ea5t k\u1ef3 d\u00e2y d\u1eabn n\u1ed1i \u0111\u1ea5t n\u00e0o. C\u00e1 nh\u00e2n t\u00f4i cho r\u1eb1ng bi\u1ec7n ph\u00e1p n\u1ed1i \u0111\u1ea5t tr\u00ean PCB l\u00e0 n\u1ed1i \u0111\u1ea5t ch\u1ee9c n\u0103ng ch\u1ee9 kh\u00f4ng ph\u1ea3i n\u1ed1i \u0111\u1ea5t b\u1ea3o v\u1ec7. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh l\u00e0 thi\u1ebft b\u1ecb lo\u1ea1i II. Tuy nhi\u00ean, ch\u00fang ta c\u0169ng c\u1ea7n xem x\u00e9t ngh\u0129a v\u1ee5 th\u00f4ng b\u00e1o cho ng\u01b0\u1eddi d\u00f9ng. Ng\u01b0\u1eddi d\u00f9ng ch\u1ec9 c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh m\u1ee9c \u0111\u1ed9 b\u1ea3o v\u1ec7 c\u1ee7a thi\u1ebft b\u1ecb d\u1ef1a tr\u00ean s\u1ed1 ch\u00e2n tr\u00ean ph\u00edch c\u1eafm c\u1ee7a thi\u1ebft b\u1ecb. \u0110\u1ed3ng th\u1eddi, \u0111\u1ed1i v\u1edbi h\u1ea7u h\u1ebft nh\u1eefng ng\u01b0\u1eddi h\u00e0nh ngh\u1ec1 trong ng\u00e0nh ki\u1ec3m tra, th\u1eed nghi\u1ec7m, khi g\u1eb7p ph\u1ea3i t\u00ecnh hu\u1ed1ng n\u00e0y, h\u1ecd c\u0169ng s\u1ebd x\u00e1c \u0111\u1ecbnh thi\u1ebft b\u1ecb l\u00e0 thi\u1ebft b\u1ecb lo\u1ea1i I. Do \u0111\u00f3, trong th\u1eed nghi\u1ec7m v\u00e0 \u0111\u00e1nh gi\u00e1 th\u1ef1c t\u1ebf, vi\u1ec7c \u0111\u00e1nh gi\u00e1 thi\u1ebft b\u1ecb n\u00e0y l\u00e0 thi\u1ebft b\u1ecb lo\u1ea1i I c\u00f3 th\u1ec3 tr\u00e1nh \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 r\u1ee7i ro v\u1ec1 an to\u00e0n phi s\u1ea3n ph\u1ea9m. S\u01a1 \u0111\u1ed3 m\u1ea1ch d\u01b0\u1edbi \u0111\u00e2y cho th\u1ea5y c\u1ea5u tr\u00fac n\u1ed1i \u0111\u1ea5t ch\u1ee9c n\u0103ng n\u00e0y.<br>\n<figure class=\"wp-block-image is-resized\"><br>\n<img decoding=\"async\" src=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/is-it-a-protective-impedance.png\" alt=\"\" style=\"width:610px;height:auto\"\/><br>\n<\/figure><br>\nc\u00e1ch \u0111i\u1ec7n c\u01a1 b\u1ea3n cho \u0111\u01b0\u1eddng r\u00f2 v\u00e0 khe h\u1edf kh\u00f4ng kh\u00ed trong thi\u1ebft b\u1ecb c\u1ea5p I<br>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\"><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><figure class=\"wp-block-image size-large\"><br>\n<img loading=\"lazy\" decoding=\"async\" width=\"819\" height=\"1024\" src=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/terminal-block-for-creepage-distance-819x1024.png\" alt=\"\" class=\"wp-image-582\" srcset=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/terminal-block-for-creepage-distance-819x1024.png 819w, https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/terminal-block-for-creepage-distance-240x300.png 240w, https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/terminal-block-for-creepage-distance-768x960.png 768w, https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/terminal-block-for-creepage-distance-1228x1536.png 1228w, https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/terminal-block-for-creepage-distance-1638x2048.png 1638w\" sizes=\"auto, (max-width: 819px) 100vw, 819px\" \/><br>\n<figcaption class=\"wp-element-caption\">\u0111\u01b0\u1eddng m\u00e0u \u0111\u1ecf th\u1ec3 hi\u1ec7n \u0111\u1ed9 r\u00f2 r\u1ec9 c\u1ee7a c\u00e1ch \u0111i\u1ec7n c\u01a1 b\u1ea3n.\u00a0Kho\u1ea3ng c\u00e1ch r\u00f2 r\u1ec9 l\u00e0 th\u00f4ng qua \u1ed1ng co nhi\u1ec7t c\u00e1ch nhi\u1ec7t c\u1ee7a v\u1ea5u \u0111\u1ea7u cu\u1ed1i v\u00e0 m\u1eb7t b\u00ean c\u1ee7a kh\u1ed1i \u0111\u1ea7u c\u1ef1c<\/figcaption><\/figure><\/div><div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><figure class=\"wp-block-image size-large\"><br>\n<img loading=\"lazy\" decoding=\"async\" width=\"821\" height=\"1024\" src=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/terminal-block-for-clearance-of-basic-insulation-821x1024.png\" alt=\"\" class=\"wp-image-581\" srcset=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/terminal-block-for-clearance-of-basic-insulation-821x1024.png 821w, https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/terminal-block-for-clearance-of-basic-insulation-240x300.png 240w, https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/terminal-block-for-clearance-of-basic-insulation-768x958.png 768w, https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/terminal-block-for-clearance-of-basic-insulation-1231x1536.png 1231w, https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/terminal-block-for-clearance-of-basic-insulation-1641x2048.png 1641w\" sizes=\"auto, (max-width: 821px) 100vw, 821px\" \/><br>\n<figcaption class=\"wp-element-caption\">\u0111\u01b0\u1eddng m\u00e0u \u0111\u1ecf th\u1ec3 hi\u1ec7n khe h\u1edf c\u1ee7a l\u1edbp c\u00e1ch \u0111i\u1ec7n c\u01a1 b\u1ea3n<\/figcaption><\/figure><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>thi\u1ebft b\u1ecb c\u1ea5p I: thi\u1ebft b\u1ecb trong \u0111\u00f3 vi\u1ec7c b\u1ea3o v\u1ec7 ch\u1ed1ng \u0111i\u1ec7n gi\u1eadt kh\u00f4ng ch\u1ec9 d\u1ef1a v\u00e0o c\u00e1ch \u0111i\u1ec7n c\u01a1 b\u1ea3n m\u00e0 c\u00f2n bao g\u1ed3m bi\u1ec7n ph\u00e1p ph\u00f2ng ng\u1eeba an to\u00e0n b\u1ed5 sung, trong \u0111\u00f3 c\u00e1c b\u1ed9 ph\u1eadn d\u1eabn \u0111i\u1ec7n ch\u1ea1m t\u1edbi \u0111\u01b0\u1ee3c \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi d\u00e2y d\u1eabn n\u1ed1i \u0111\u1ea5t b\u1ea3o v\u1ec7 trong h\u1ec7&#8230;<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[5],"tags":[74,82,162,105,147,161,70],"class_list":["post-503","post","type-post","status-publish","format-standard","hentry","category-terms-and-definitions","tag-insulation-applied-to-live-parts-to-provide-basic-protection-against-electric-shock","tag-appliance-in-which-protection-against-electric-shock-does-not-rely-on-basic-insulation-only-but-which-includes-an-additional-safety-precaution-in-that-conductive-accessible-parts-are-connected-to-the","tag-double-precaution","tag-conductor-or-conductive-part-intended-to-be-energized-in-normal-use-including-a-neutral-conductor-but-by-convention-not-a-pen-conductor","tag-protection-against-electric-shock","tag-protective-earthing-conductor","tag-flexible-cord-for-supply-purposes-that-is-fixed-to-the-appliance"],"translation":{"provider":"WPGlobus","version":"3.0.1","language":"vi","enabled_languages":["en","es","ar","de","ja","fr","ru","th","nl","it","fa","ko","pt","hi","ro","tr","vi","id","zu"],"languages":{"en":{"title":true,"content":true,"excerpt":false},"es":{"title":true,"content":true,"excerpt":false},"ar":{"title":true,"content":true,"excerpt":false},"de":{"title":true,"content":true,"excerpt":false},"ja":{"title":true,"content":true,"excerpt":false},"fr":{"title":true,"content":true,"excerpt":false},"ru":{"title":true,"content":true,"excerpt":false},"th":{"title":true,"content":true,"excerpt":false},"nl":{"title":true,"content":true,"excerpt":false},"it":{"title":true,"content":true,"excerpt":false},"fa":{"title":true,"content":true,"excerpt":false},"ko":{"title":true,"content":true,"excerpt":false},"pt":{"title":true,"content":true,"excerpt":false},"hi":{"title":true,"content":true,"excerpt":false},"ro":{"title":true,"content":true,"excerpt":false},"tr":{"title":true,"content":true,"excerpt":false},"vi":{"title":true,"content":true,"excerpt":false},"id":{"title":true,"content":true,"excerpt":false},"zu":{"title":true,"content":true,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/gezhi-tech.com\/vi\/wp-json\/wp\/v2\/posts\/503","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gezhi-tech.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gezhi-tech.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gezhi-tech.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gezhi-tech.com\/vi\/wp-json\/wp\/v2\/comments?post=503"}],"version-history":[{"count":80,"href":"https:\/\/gezhi-tech.com\/vi\/wp-json\/wp\/v2\/posts\/503\/revisions"}],"predecessor-version":[{"id":2292,"href":"https:\/\/gezhi-tech.com\/vi\/wp-json\/wp\/v2\/posts\/503\/revisions\/2292"}],"wp:attachment":[{"href":"https:\/\/gezhi-tech.com\/vi\/wp-json\/wp\/v2\/media?parent=503"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gezhi-tech.com\/vi\/wp-json\/wp\/v2\/categories?post=503"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gezhi-tech.com\/vi\/wp-json\/wp\/v2\/tags?post=503"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}