{"id":15,"date":"2024-06-11T10:49:12","date_gmt":"2024-06-11T08:49:12","guid":{"rendered":"https:\/\/gezhi-tech.com\/?p=15"},"modified":"2025-09-27T17:50:27","modified_gmt":"2025-09-27T15:50:27","slug":"foreword-2","status":"publish","type":"post","link":"https:\/\/gezhi-tech.com\/vi\/foreword-2\/","title":{"rendered":"L\u1eddi n\u00f3i \u0111\u1ea7u-2"},"content":{"rendered":"D\u1ef1a v\u00e0o t\u00ean c\u1ee7a c\u00e1c m\u1ec7nh \u0111\u1ec1, ng\u01b0\u1eddi \u0111\u1ecdc c\u0169ng c\u00f3 th\u1ec3 bi\u1ebft \u0111\u01b0\u1ee3c n\u1ed9i dung c\u1ea7n t\u1eadp trung v\u00e0o m\u1ed7i m\u1ec7nh \u0111\u1ec1. H\u1ea7u h\u1ebft c\u00e1c ti\u00eau chu\u1ea9n v\u1ec1 s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ecdc qua m\u1ee5c l\u1ee5c \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c \u00fd t\u01b0\u1edfng chung. \u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi s\u1eed d\u1ee5ng ti\u00eau chu\u1ea9n thi\u1ebfu kinh nghi\u1ec7m, ch\u00fang t\u00f4i khuy\u00ean b\u1ea1n n\u00ean ch\u1ee7 \u0111\u1ed9ng suy ngh\u0129 v\u1ec1 c\u00e1c t\u00ecnh hu\u1ed1ng nguy hi\u1ec3m c\u00f3 th\u1ec3 li\u00ean quan \u0111\u1ebfn ch\u1ee7 \u0111\u1ec1 \u0111\u00f3 khi nh\u00ecn th\u1ea5y t\u00ean c\u00e1c \u0111i\u1ec1u kho\u1ea3n; \u0111\u1ed1i v\u1edbi nh\u1eefng \u0111\u1ed9c gi\u1ea3 c\u00f3 kinh nghi\u1ec7m, m\u1ee5c l\u1ee5c th\u1ef1c s\u1ef1 l\u00e0 m\u1ed9t c\u1eeda s\u1ed5 nhanh \u0111\u1ec3 t\u00ecm hi\u1ec3u ti\u00eau chu\u1ea9n. H\u1ea7u h\u1ebft c\u00e1c ti\u00eau chu\u1ea9n IEC \u0111\u1ec1u c\u00f3 c\u1ea5u tr\u00fac v\u0103n b\u1ea3n t\u01b0\u01a1ng t\u1ef1 nhau, ch\u1ee7 y\u1ebfu \u1edf s\u00e1u m\u1ec7nh \u0111\u1ec1 t\u1eeb th\u1ee9 nh\u1ea5t \u0111\u1ebfn th\u1ee9 s\u00e1u, t\u1ea5t c\u1ea3 \u0111\u1ec1u c\u00f3 c\u00f9ng m\u1ed9t ch\u1ee7 \u0111\u1ec1. C\u00e1c \u0111i\u1ec1u kho\u1ea3n ti\u1ebfp theo, do c\u00e1c s\u1ea3n ph\u1ea9m kh\u00e1c nhau n\u00ean y\u00eau c\u1ea7u t\u01b0\u01a1ng \u1ee9ng c\u0169ng kh\u00e1c nhau, do \u0111\u00f3 t\u1eadp trung v\u00e0o c\u00e1c ch\u1ee7 \u0111\u1ec1 kh\u00e1c nhau. T\u1eeb quan \u0111i\u1ec3m an to\u00e0n, t\u1ea5t c\u1ea3 c\u00e1c \u0111i\u1ec1u \u0111\u01b0\u1ee3c li\u1ec7t k\u00ea trong ti\u00eau chu\u1ea9n n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u1ed1ng nh\u1ea5t \u0111\u1ec3 ng\u0103n ng\u1eeba n\u0103m lo\u1ea1i r\u1ee7i ro sau, t\u1ee9c l\u00e0 \u0111i\u1ec7n gi\u1eadt, ch\u1ea5n th\u01b0\u01a1ng do nhi\u1ec7t, ch\u1ea5n th\u01b0\u01a1ng c\u01a1 h\u1ecdc, nguy c\u01a1 h\u1ecfa ho\u1ea1n v\u00e0 nguy c\u01a1 b\u1ee9c x\u1ea1 ho\u1eb7c h\u00f3a h\u1ecdc. Ti\u00eau chu\u1ea9n chia c\u00e1c \u0111i\u1ec1u kho\u1ea3n theo \u0111\u1eb7c \u0111i\u1ec3m c\u1ea5u tr\u00fac v\u00e0 ch\u1ee9c n\u0103ng c\u1ee7a s\u1ea3n ph\u1ea9m. Ph\u1ee5 l\u1ee5c-Ph\u1ee5 l\u1ee5c c\u00f3 th\u1ec3 coi l\u00e0 c\u00e1c m\u1ec7nh \u0111\u1ec1 ph\u1ee5 c\u1ee7a m\u1ec7nh \u0111\u1ec1 ch\u00ednh, c\u00f3 th\u1ec3 l\u00e0 nh\u1eefng y\u00eau c\u1ea7u chi ti\u1ebft, c\u1ee5 th\u1ec3 h\u01a1n cho c\u00e1c m\u1ec7nh \u0111\u1ec1 ch\u00ednh (nh\u01b0 Ph\u1ee5 l\u1ee5c B v\u00e0 Ph\u1ee5 l\u1ee5c S), ho\u1eb7c gi\u1ea3i th\u00edch, \u0111\u1ecbnh ngh\u0129a chi ti\u1ebft cho c\u00e1c m\u1ec7nh \u0111\u1ec1 ch\u00ednh (nh\u01b0 Ph\u1ee5 l\u1ee5c K). v\u00e0 Ph\u1ee5 l\u1ee5c M) ho\u1eb7c h\u01b0\u1edbng d\u1eabn th\u1ef1c hi\u1ec7n (nh\u01b0 Ph\u1ee5 l\u1ee5c O v\u00e0 Ph\u1ee5 l\u1ee5c Q). N\u1ed9i dung c\u1ee7a ch\u00fang kh\u00f4ng mang t\u00ednh quy\u1ebft \u0111\u1ecbnh \u0111\u1ed1i v\u1edbi s\u1ef1 hi\u1ec3u bi\u1ebft v\u1ec1 ti\u00eau chu\u1ea9n.<br>","protected":false},"excerpt":{"rendered":"<p>D\u1ef1a v\u00e0o t\u00ean c\u1ee7a c\u00e1c m\u1ec7nh \u0111\u1ec1, ng\u01b0\u1eddi \u0111\u1ecdc c\u0169ng c\u00f3 th\u1ec3 bi\u1ebft \u0111\u01b0\u1ee3c n\u1ed9i dung c\u1ea7n t\u1eadp trung v\u00e0o m\u1ed7i m\u1ec7nh \u0111\u1ec1. H\u1ea7u h\u1ebft c\u00e1c ti\u00eau chu\u1ea9n v\u1ec1 s\u1ea3n ph\u1ea9m cu\u1ed1i c\u00f9ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1ecdc qua m\u1ee5c l\u1ee5c \u0111\u1ec3 c\u00f3 \u0111\u01b0\u1ee3c \u00fd t\u01b0\u1edfng chung. \u0110\u1ed1i v\u1edbi nh\u1eefng ng\u01b0\u1eddi s\u1eed d\u1ee5ng ti\u00eau chu\u1ea9n thi\u1ebfu&#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":[2],"tags":[150],"class_list":["post-15","post","type-post","status-publish","format-standard","hentry","category-general","tag-general-information"],"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\/15","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=15"}],"version-history":[{"count":19,"href":"https:\/\/gezhi-tech.com\/vi\/wp-json\/wp\/v2\/posts\/15\/revisions"}],"predecessor-version":[{"id":757,"href":"https:\/\/gezhi-tech.com\/vi\/wp-json\/wp\/v2\/posts\/15\/revisions\/757"}],"wp:attachment":[{"href":"https:\/\/gezhi-tech.com\/vi\/wp-json\/wp\/v2\/media?parent=15"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gezhi-tech.com\/vi\/wp-json\/wp\/v2\/categories?post=15"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gezhi-tech.com\/vi\/wp-json\/wp\/v2\/tags?post=15"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}