{"id":394,"date":"2024-08-07T17:22:24","date_gmt":"2024-08-07T15:22:24","guid":{"rendered":"https:\/\/gezhi-tech.com\/?p=394"},"modified":"2025-09-27T17:50:24","modified_gmt":"2025-09-27T15:50:24","slug":"clause-3-how-to-understand-the-definition-of-reinforced-insulation","status":"publish","type":"post","link":"https:\/\/gezhi-tech.com\/ro\/clause-3-how-to-understand-the-definition-of-reinforced-insulation\/","title":{"rendered":"Clauza 3 \u2013 Cum s\u0103 \u00een\u021belege\u021bi defini\u021bia \u201eizola\u021biei armate\u201d"},"content":{"rendered":"izola\u021bie \u00eent\u0103rit\u0103: izola\u021bie simpl\u0103 aplicat\u0103 p\u0103r\u021bilor sub tensiune, care asigur\u0103 un grad de protec\u021bie \u00eempotriva \u0219ocurilor electrice echivalent cu izolarea dubl\u0103 \u00een condi\u021biile specificate \u00een acest standard.
NOT\u0102 Nu se presupune c\u0103 izola\u021bia este o singur\u0103 bucat\u0103 omogen\u0103. Izola\u021bia poate cuprinde mai multe straturi care nu pot fi testate individual ca izola\u021bie suplimentar\u0103 sau izola\u021bie de baz\u0103.
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\nDin note, izola\u021biile suplimentare \u0219i de baz\u0103 pot fi testate una c\u00e2te una, ceea ce \u00eenseamn\u0103 c\u0103 izola\u021biile suplimentare \u0219i de baz\u0103 pot fi u\u0219or distinse \u0219i separate. \u00cen mod corespunz\u0103tor, dac\u0103 o izola\u021bie const\u0103 din mai multe straturi sau mai multe izola\u021bii care nu sunt u\u0219or de separat \u0219i de distins, dar este echivalent\u0103 cu o izola\u021bie dubl\u0103 \u00een efect real de izola\u021bie, poate fi definit\u0103 ca izola\u021bie armat\u0103; \u00een plus, dac\u0103 este doar un strat sau o singur\u0103 izola\u021bie dielectric\u0103, efectul s\u0103u de izolare este echivalent cu izolarea dubl\u0103, poate fi definit\u0103 \u0219i ca izola\u021bie armat\u0103.
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\nA\u0219a cum se arat\u0103 \u00een cele dou\u0103 imagini de mai jos, imaginea din st\u00e2nga este o fotografie a spatelui unui frigider. Placa de circuite din interior poate fi v\u0103zut\u0103 prin grila metalic\u0103 din imaginea din st\u00e2nga, iar fotografia intern\u0103 este imaginea din dreapta. Exist\u0103 p\u0103r\u021bi sub tensiune pe PCB, iar utilizatorul poate atinge grila. Aerul dintre golul grilei \u0219i p\u0103r\u021bile sub tensiune de pe placa de circuite poate forma o bucl\u0103 conductiv\u0103. Prin urmare, aceast\u0103 distan\u021b\u0103 poate fi determinat\u0103 ca un spa\u021biu liber cu izola\u021bie \u00eent\u0103rit\u0103. Deoarece clearance<\/strong><\/a>-ul \u0219i nbsp; \u0219i nbsp;este compus dintr-o bucl\u0103 de aer, bucla de aer nu poate fi separat\u0103 \u0219i nici m\u0103car nu \u0219tim unde s\u0103 \u00eemp\u0103r\u021bim acest aer \u00een mai multe p\u0103r\u021bi. Aici, dou\u0103 puncte trebuie remarcate. Dac\u0103 grilajul metalic nu este \u00eemp\u0103m\u00e2ntat, aerul dintre gril\u0103 \u0219i p\u0103r\u021bile sub tensiune din placa de circuit trebuie s\u0103 \u00eendeplineasc\u0103 cerin\u021bele de izola\u021bie \u00eent\u0103rit\u0103 (conform cerin\u021belor clauzei 8.2 pentru aparatul de clasa II), dac\u0103 grila metalic\u0103 este \u00eemp\u0103m\u00e2n\u021bat\u0103, atunci aerul dintre gril\u0103 \u0219i p\u0103r\u021bile sub tensiune din placa de circuit trebuie doar s\u0103 \u00eendeplineasc\u0103 cerin\u021bele de izola\u021bie de baz\u0103, deoarece izolarea de baz\u0103 plus \u00eemp\u0103m\u00e2ntarea este un aparat de Clasa I cu m\u0103suri de protec\u021bie dubl\u0103, iar utilizatorul poate atinge p\u0103r\u021bile metalice de \u00eemp\u0103m\u00e2ntare.
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\nPompa submersibil\u0103 prezentat\u0103 mai jos are \u00een interior un motor cu st\u00e2lp umbrit, cu \u00eenf\u0103\u0219ur\u0103rile \u00eenvelite \u00een izola\u021bie galben\u0103. Pentru a preveni deteriorarea apei, \u00eentregul stator al motorului este \u00eenvelit \u00een r\u0103\u0219in\u0103 epoxidic\u0103. Dup\u0103 ce \u00eenf\u0103\u0219ur\u0103rile sunt \u00eenf\u0103\u0219urate, nu este posibil\u0103 testarea eficient\u0103 a izola\u021biei de baz\u0103 \u0219i a izola\u021biei suplimentare. \u00cenainte de turnarea r\u0103\u0219inii epoxidice, izola\u021bia galben\u0103 poate fi considerat\u0103 izola\u021bie de baz\u0103, iar r\u0103\u0219ina epoxidic\u0103 poate fi considerat\u0103 izola\u021bie suplimentar\u0103. Cu toate acestea, atunci c\u00e2nd r\u0103\u0219ina epoxidic\u0103 este turnat\u0103 \u00een carcasa pompei, aceasta va adera foarte str\u00e2ns la materialul izolator galben \u0219i cele dou\u0103 materiale nu pot fi separate pentru evaluare, cum ar fi evaluarea testelor de rezisten\u021b\u0103 electric\u0103. Prin urmare, se formeaz\u0103 izola\u021bie \u00eent\u0103rit\u0103 de la \u00eenf\u0103\u0219urarea pompei la suprafa\u021ba r\u0103\u0219inii epoxidice accesibil\u0103 extern.
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\n<\/figure>","protected":false},"excerpt":{"rendered":"

izola\u021bie \u00eent\u0103rit\u0103: izola\u021bie simpl\u0103 aplicat\u0103 p\u0103r\u021bilor sub tensiune, care asigur\u0103 un grad de protec\u021bie \u00eempotriva \u0219ocurilor electrice echivalent cu izolarea dubl\u0103 \u00een condi\u021biile specificate \u00een acest standard.NOT\u0102 Nu se presupune c\u0103 izola\u021bia este o singur\u0103 bucat\u0103 omogen\u0103. Izola\u021bia poate cuprinde mai multe straturi care nu pot fi testate individual ca izola\u021bie suplimentar\u0103 sau izola\u021bie de…<\/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":[74,76,105,77,75],"class_list":["post-394","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-conductor-or-conductive-part-intended-to-be-energized-in-normal-use-including-a-neutral-conductor-but-by-convention-not-a-pen-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\/394","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=394"}],"version-history":[{"count":41,"href":"https:\/\/gezhi-tech.com\/ro\/wp-json\/wp\/v2\/posts\/394\/revisions"}],"predecessor-version":[{"id":1909,"href":"https:\/\/gezhi-tech.com\/ro\/wp-json\/wp\/v2\/posts\/394\/revisions\/1909"}],"wp:attachment":[{"href":"https:\/\/gezhi-tech.com\/ro\/wp-json\/wp\/v2\/media?parent=394"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gezhi-tech.com\/ro\/wp-json\/wp\/v2\/categories?post=394"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gezhi-tech.com\/ro\/wp-json\/wp\/v2\/tags?post=394"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}