{"id":383,"date":"2024-08-05T15:16:55","date_gmt":"2024-08-05T13:16:55","guid":{"rendered":"https:\/\/gezhi-tech.com\/?p=383"},"modified":"2025-09-27T17:50:24","modified_gmt":"2025-09-27T15:50:24","slug":"clause-3-how-to-understand-the-definition-of-double-insulation","status":"publish","type":"post","link":"https:\/\/gezhi-tech.com\/fr\/clause-3-how-to-understand-the-definition-of-double-insulation\/","title":{"rendered":"Clause 3 \u2013 Comment comprendre la d\u00e9finition de \u00ab double isolation \u00bb"},"content":{"rendered":"double isolation : syst\u00e8me d&#8217;isolation comprenant \u00e0 la fois une isolation de base et une isolation suppl\u00e9mentaire<br>\n<br>\nLa d\u00e9finition vise uniquement \u00e0 simplifier la description de l&#8217;isolation de base et de l&#8217;isolation suppl\u00e9mentaire dans la norme, en utilisant un nom pour d\u00e9crire deux noms.<br>\n<br>\nComme le montre la figure ci-dessous, le cordon d&#8217;alimentation comporte deux couches d&#8217;isolation, la gaine int\u00e9rieure du fil et la gaine ext\u00e9rieure du fil noir, qui est d\u00e9finie comme une double isolation.<br>\n<br>\nComme le montrent les deux images suivantes (ventilateur), la gaine interne des fils conducteurs sur l&#8217;image de gauche est une isolation de base et la plaque inf\u00e9rieure du bo\u00eetier ext\u00e9rieur est une isolation suppl\u00e9mentaire.<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=\"640\" height=\"480\" src=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/basic-insulation-internal-view.jpg\" alt=\"\" class=\"wp-image-319\" srcset=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/basic-insulation-internal-view.jpg 640w, https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/basic-insulation-internal-view-300x225.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><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=\"640\" height=\"480\" src=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/basic-insulation.jpg\" alt=\"\" class=\"wp-image-320\" srcset=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/basic-insulation.jpg 640w, https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/basic-insulation-300x225.jpg 300w\" sizes=\"auto, (max-width: 640px) 100vw, 640px\" \/><br>\n<\/figure><\/div><\/div><figure class=\"wp-block-image size-full\"><br>\n<img loading=\"lazy\" decoding=\"async\" width=\"853\" height=\"480\" src=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/double-insulation.gif\" alt=\"\" class=\"wp-image-389\"\/><br>\n<\/figure><br>\nL&#8217;image du circuit imprim\u00e9 suivante a un effet d&#8217;animation. Le c\u00f4t\u00e9 droit de la ligne pointill\u00e9e est la partie inaccessible avec une tension de fonctionnement de 220-240 V, et le c\u00f4t\u00e9 gauche de la ligne pointill\u00e9e est la partie accessible avec une tension de fonctionnement maximale de 24 V (en supposant que la structure \u00e0 l&#8217;emplacement du pointill\u00e9 est la partie accessible avec une tension de fonctionnement maximale de 220-240 V). la ligne a satisfait aux exigences de double isolation ou d&#8217;isolation renforc\u00e9e). Afin d&#8217;assurer une isolation efficace, d&#8217;une mani\u00e8re g\u00e9n\u00e9rale, les fils du c\u00f4t\u00e9 droit de la ligne pointill\u00e9e (fils internes rouge et bleu) ne peuvent pas toucher les fils internes relativement fins de gauche. La gaine du fil droit constitue une isolation de base, car la gaine du fil est en contact direct avec les parties sous tension et constitue la premi\u00e8re couche de protection pour les parties sous tension. La gaine du fil gauche ne peut \u00eatre d\u00e9finie que comme isolation suppl\u00e9mentaire, mais sa conformit\u00e9 aux exigences d&#8217;isolation suppl\u00e9mentaire de la clause 29.3 sera analys\u00e9e lors de l&#8217;introduction de la clause 29.3.<br>Il convient de noter ici que la gaine du fil gauche ne peut pas \u00eatre d\u00e9finie comme une isolation de base et que la gaine du fil droit ne peut pas \u00eatre une isolation suppl\u00e9mentaire.<br>\n<figure class=\"wp-block-image size-full\"><br>\n<img loading=\"lazy\" decoding=\"async\" width=\"853\" height=\"480\" src=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/double-insulation-in-switch-power-supply.gif\" alt=\"\" class=\"wp-image-417\"\/><br>\n<\/figure>","protected":false},"excerpt":{"rendered":"<p>double isolation : syst\u00e8me d&#8217;isolation comprenant \u00e0 la fois une isolation de base et une isolation suppl\u00e9mentaire La d\u00e9finition vise uniquement \u00e0 simplifier la description de l&#8217;isolation de base et de l&#8217;isolation suppl\u00e9mentaire dans la norme, en utilisant un nom pour d\u00e9crire deux noms. Comme le montre la figure ci-dessous, le cordon d&#8217;alimentation comporte deux&#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":[74,76,75],"class_list":["post-383","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-insulation-system-comprising-both-basic-insulation-and-supplementary-insulation","tag-independent-insulation-applied-in-addition-to-basic-insulation-in-order-to-provide-protection-against-electric-shock-in-the-event-of-a-failure-of-basic-insulation"],"translation":{"provider":"WPGlobus","version":"3.0.1","language":"fr","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\/fr\/wp-json\/wp\/v2\/posts\/383","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gezhi-tech.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gezhi-tech.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gezhi-tech.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gezhi-tech.com\/fr\/wp-json\/wp\/v2\/comments?post=383"}],"version-history":[{"count":52,"href":"https:\/\/gezhi-tech.com\/fr\/wp-json\/wp\/v2\/posts\/383\/revisions"}],"predecessor-version":[{"id":1927,"href":"https:\/\/gezhi-tech.com\/fr\/wp-json\/wp\/v2\/posts\/383\/revisions\/1927"}],"wp:attachment":[{"href":"https:\/\/gezhi-tech.com\/fr\/wp-json\/wp\/v2\/media?parent=383"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gezhi-tech.com\/fr\/wp-json\/wp\/v2\/categories?post=383"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gezhi-tech.com\/fr\/wp-json\/wp\/v2\/tags?post=383"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}