{"id":525,"date":"2024-08-17T11:25:36","date_gmt":"2024-08-17T09:25:36","guid":{"rendered":"https:\/\/gezhi-tech.com\/?p=525"},"modified":"2025-09-27T17:50:23","modified_gmt":"2025-09-27T15:50:23","slug":"clause-3-how-to-understand-the-definition-of-class-ii-appliance","status":"publish","type":"post","link":"https:\/\/gezhi-tech.com\/ro\/clause-3-how-to-understand-the-definition-of-class-ii-appliance\/","title":{"rendered":"Clauza 3 \u2013 Cum s\u0103 \u00een\u021belege\u021bi defini\u021bia \u201eaparatului de clasa II\u201d"},"content":{"rendered":"aparat clasa II: aparat pe care nu se bazeaz\u0103 protec\u021bia \u00eempotriva \u0219ocurilor electrice <strong>izola\u021bie de baz\u0103 <\/strong>numai, dar \u00een care sunt prev\u0103zute m\u0103suri de siguran\u021b\u0103 suplimentare, cum ar fi <strong>dubla izolare <\/strong>sau <strong>izola\u021bie \u00eent\u0103rit\u0103<\/strong>, neexist\u00e2nd nicio prevedere pentru \u00eemp\u0103m\u00e2ntare de protec\u021bie sau dependen\u021b\u0103 de condi\u021biile de instalare. <br><em>NOTA 1 Un astfel de aparat poate fi de unul dintre urm\u0103toarele tipuri:<br>\u2013 un aparat av\u00e2nd o carcas\u0103 durabil\u0103 \u0219i substan\u021bial continu\u0103 din material izolator care \u00eenvele\u0219te toate piesele metalice, cu excep\u021bia pieselor, cum ar fi pl\u0103cu\u021bele de identificare, \u0219uruburile \u0219i niturile, care sunt izolate de <strong>piese sub tensiune <\/strong>prin izola\u021bie cel pu\u021bin echivalent\u0103 cu <strong>izola\u021bie \u00eent\u0103rit\u0103<\/strong>; un astfel de aparat se numeste carcasa de izolare <strong>aparat clasa II<\/strong>;<br>\u2013 un aparat cu o carcas\u0103 metalic\u0103 substan\u021bial continu\u0103, \u00een care <strong>dubla izolare <\/strong>sau <strong>izola\u021bie \u00eent\u0103rit\u0103 <\/strong>este folosit peste tot; un astfel de aparat se numeste carcasa metalica <strong>aparat clasa II<\/strong>;<br>\u2013 un aparat care este o combina\u021bie a unei carcase de izola\u021bie <strong>aparat clasa II <\/strong>\u0219i o carcas\u0103 metalic\u0103 <strong>aparat clasa II<\/strong>.<br>NOTA 2 Carcasa unei carcase izolatoare <strong>aparat clasa II <\/strong>poate forma o parte sau \u00eentregul <strong>izola\u021bie suplimentar\u0103 <\/strong>sau al <strong>izola\u021bie \u00eent\u0103rit\u0103<\/strong>.<\/em><br>\nAici g\u00e2ndim din perspectiva dublelor precau\u021bii. Pe l\u00e2ng\u0103 izola\u021bia de baz\u0103, produsul are nevoie \u0219i de un alt strat de izola\u021bie, adic\u0103 de m\u0103suri de izolare dubl\u0103 pentru a se asigura c\u0103, dac\u0103 orice strat de izola\u021bie e\u0219ueaz\u0103, va exista un alt strat de izola\u021bie care s\u0103 joace \u00een continuare un rol de protec\u021bie. Efectul anti-\u0219oc electric al izola\u021biei ranforsate este echivalent cu izolarea dubl\u0103 \u00een majoritatea cazurilor, deci este, de asemenea, considerat a fi o modalitate eficient\u0103 de precau\u021bie dubl\u0103. Aparatele din clasa II definite de standard subliniaz\u0103 \u00een principal faptul c\u0103 aparatul realizeaz\u0103 efectul de izolare dubl\u0103 prin carcasa proprie, fire izolate \u0219i mantale de fire izolate. Aparatele cu m\u0103suri de \u00eemp\u0103m\u00e2ntare sunt aparate de Clasa I, astfel \u00eenc\u00e2t aparatele de Clasa II nu au \u00eemp\u0103m\u00e2ntare de protec\u021bie.<br><br>Cu excep\u021bia aparatelor din clasa 0, toate aparatele cu suprafa\u021b\u0103 mare din plastic sau carcase izolatoare sunt \u00een general proiectate ca aparate din clasa a II-a. Cu toate acestea, exist\u0103 \u0219i unele motoare cu carcas\u0103 metalic\u0103, de\u0219i produsul poate \u00eendeplini cerin\u021bele aparatelor din clasa a II-a, exist\u0103 totu\u0219i o m\u0103sur\u0103 de protec\u021bie la p\u0103m\u00e2nt pe motor. Acest aparat este considerat un aparat de Clasa I. Notele la aceast\u0103 clauz\u0103 ofer\u0103 o introducere \u00een caracteristicile structurale ale tuturor aparatelor posibile din Clasa II.<br>\n<figure class=\"wp-block-image size-full\"><br>\n<img loading=\"lazy\" decoding=\"async\" width=\"778\" height=\"378\" src=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/class-II-appliance-1.png\" alt=\"\" class=\"wp-image-496\" srcset=\"https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/class-II-appliance-1.png 778w, https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/class-II-appliance-1-300x146.png 300w, https:\/\/gezhi-tech.com\/wp-content\/uploads\/2024\/08\/class-II-appliance-1-768x373.png 768w\" sizes=\"auto, (max-width: 778px) 100vw, 778px\" \/><br>\n<\/figure><br>\nFigura 11 \u2013 Exemple de degaj\u0103ri \u00een standardul IEC 60335-1 ofer\u0103 un exemplu simplu. Pe baza acestei figuri, ne putem g\u00e2ndi la caracteristicile de baz\u0103 ale aparatului de clasa a II-a, construc\u021biei de clasa a II-a, aparatului de clasa I \u0219i construc\u021biei de clasa I.<br>","protected":false},"excerpt":{"rendered":"<p>aparat clasa II: aparat pe care nu se bazeaz\u0103 protec\u021bia \u00eempotriva \u0219ocurilor electrice izola\u021bie de baz\u0103 numai, dar \u00een care sunt prev\u0103zute m\u0103suri de siguran\u021b\u0103 suplimentare, cum ar fi dubla izolare sau izola\u021bie \u00eent\u0103rit\u0103, neexist\u00e2nd nicio prevedere pentru \u00eemp\u0103m\u00e2ntare de protec\u021bie sau dependen\u021b\u0103 de condi\u021biile de instalare. NOTA 1 Un astfel de aparat poate fi&#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":[74,80,82,83,84,162,159,105,147,161,77,75],"class_list":["post-525","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-relies-upon-basic-insulation-only-there-being-no-means-for-the-connection-of-conductive-accessible-parts-if-any-to-the-protective-conductor-in-t","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-appliance-in-which-protection-against-electric-shock-does-not-rely-on-basic-insulation-only-but-in-which-additional-safety-precautions-are-provided-such-as-double-insulation-or-reinforced-insulation","tag-part-of-an-appliance-for-which-protection-against-electric-shock-relies-upon-double-insulation-or-reinforced-insulation","tag-double-precaution","tag-earthing","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-single-insulation-applied-to-live-parts-that-provides-a-degree-of-protection-against-electric-shock-equivalent-to-double-insulation-under-the-conditions-specified-in-this-standard","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":"ro","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\/ro\/wp-json\/wp\/v2\/posts\/525","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gezhi-tech.com\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gezhi-tech.com\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gezhi-tech.com\/ro\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gezhi-tech.com\/ro\/wp-json\/wp\/v2\/comments?post=525"}],"version-history":[{"count":60,"href":"https:\/\/gezhi-tech.com\/ro\/wp-json\/wp\/v2\/posts\/525\/revisions"}],"predecessor-version":[{"id":2836,"href":"https:\/\/gezhi-tech.com\/ro\/wp-json\/wp\/v2\/posts\/525\/revisions\/2836"}],"wp:attachment":[{"href":"https:\/\/gezhi-tech.com\/ro\/wp-json\/wp\/v2\/media?parent=525"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gezhi-tech.com\/ro\/wp-json\/wp\/v2\/categories?post=525"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gezhi-tech.com\/ro\/wp-json\/wp\/v2\/tags?post=525"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}