{"id":18598,"date":"2022-01-07T13:54:37","date_gmt":"2022-01-07T12:54:37","guid":{"rendered":"https:\/\/www.souteze.cz\/magazin\/?p=18598"},"modified":"2023-06-29T14:39:35","modified_gmt":"2023-06-29T12:39:35","slug":"proudovy-chranic-neboli-rcd","status":"publish","type":"post","link":"https:\/\/www.souteze.cz\/magazin\/proudovy-chranic-neboli-rcd\/","title":{"rendered":"Proudov\u00fd chr\u00e1ni\u010d neboli RCD"},"content":{"rendered":"\n<p><strong>Je v na\u0161ich domovn\u00edch rozvad\u011b\u010d\u00edch t\u00e9m\u011b\u0159 t\u0159icet let, p\u0159esto z\u016fst\u00e1v\u00e1 prakticky nezn\u00e1m\u00fd a docela z\u00e1hadn\u00fd. Proudov\u00fd chr\u00e1ni\u010d, lidov\u011b \u201ediferenci\u00e1ln\u00ed\u201c. \u010casto je pro pohodl\u00ed, zejm\u00e9na v \u010dl\u00e1nc\u00edch a sch\u00e9matech, pops\u00e1n obecn\u00fdm p\u00edsmenem RCD (Residual Current Protection Device). Nej\u010dast\u011bji n\u00e1s chr\u00e1n\u00ed p\u0159ed \u00fa\u010dinky \u00farazu elektrick\u00fdm proudem p\u0159i poru\u0161e pou\u017e\u00edvan\u00e9 elektroinstalace. Bohu\u017eel ne ve v\u0161ech situac\u00edch.<\/strong><\/p>\n\n\n\n<h2>Co jsou to proudov\u00e9 chr\u00e1ni\u010de?<\/h2>\n\n\n\n<p>Jak jsme ji\u017e uvedli v\u00fd\u0161e, RCD m\u00e1 na trhu n\u011bkolik jmen. Naz\u00fdv\u00e1 se mimo jin\u00e9 proudov\u00fd chr\u00e1ni\u010d, diferenci\u00e1l a sp\u00edna\u010d ochrany p\u0159ed \u00farazem elektrick\u00fdm proudem. Setk\u00e1me se tak\u00e9 s n\u00e1zvem RCD z anglick\u00e9ho zbytkov\u00e9ho proudu. V\u0161echny znamenaj\u00ed jedno za\u0159\u00edzen\u00ed, jeho\u017e \u00fakolem je odpojit obvod, kdy\u017e se do n\u011bj proud\u00edc\u00ed proud nerovn\u00e1 proudu vych\u00e1zej\u00edc\u00edmu. Jin\u00fdmi slovy,\u00a0<a rel=\"noreferrer noopener\" href=\"https:\/\/www.sfos.cz\/148-proudove-chranice\" target=\"_blank\"><span class=\"has-inline-color has-vivid-cyan-blue-color\">proudov\u00e9 chr\u00e1ni\u010de<\/span><\/a>\u00a0poskytuj\u00ed ochranu p\u0159ed \u00farazem pomoc\u00ed <a href=\"https:\/\/www.kalkulator.cz\/elektrina\" target=\"_blank\" rel=\"noreferrer noopener\">elekt\u0159iny<\/a> a tak\u00e9 takov\u00fdm po\u0161kozen\u00edm p\u0159et\u00ed\u017een\u00e9ho elektrick\u00e9ho za\u0159\u00edzen\u00ed, kter\u00e9 by mohlo v\u00e9st k po\u017e\u00e1ru. Sp\u00edna\u010d RCD je jedn\u00edm z neodd\u011bliteln\u00fdch prvk\u016f v\u0161ech elektroinstalac\u00ed.<\/p>\n\n\n\n<p>Vzhledem k d\u016fle\u017eitosti proudov\u00fdch chr\u00e1ni\u010d\u016f pro bezpe\u010dnost by m\u011bla b\u00fdt jejich \u00fa\u010dinnost kontrolov\u00e1na alespo\u0148 jednou m\u011bs\u00ed\u010dn\u011b. Chcete-li kontrolu prov\u00e9st, sta\u010d\u00ed stisknout testovac\u00ed tla\u010d\u00edtko, abyste zjistili, zda pojistka funguje spr\u00e1vn\u011b. Nem\u011bly by b\u00fdt testov\u00e1ny \u010dast\u011bji, proto\u017ee to ovliv\u0148uje opot\u0159eben\u00ed jeho mechanism\u016f. Ze stejn\u00e9ho d\u016fvodu bychom tak\u00e9 nem\u011bli k testov\u00e1n\u00ed pou\u017e\u00edvat p\u0159ij\u00edma\u010de s vysok\u00fdm v\u00fdkonem.<\/p>\n\n\n\n<h2>Konstrukce proudov\u00e9ho chr\u00e1ni\u010de<\/h2>\n\n\n\n<p>Tradi\u010dn\u00ed proudov\u00fd chr\u00e1ni\u010d se skl\u00e1d\u00e1 ze \u010dty\u0159 prvk\u016f: kontakt\u016f proudov\u00e9ho obvodu spolu s tla\u010d\u00edtkem, kter\u00e9 aktivuje \u010dinnost za\u0159\u00edzen\u00ed, spou\u0161t\u011b, co\u017e je nej\u010dast\u011bji polarizovan\u00e9 rel\u00e9, testovac\u00edho obvodu, kter\u00fd umo\u017e\u0148uje kontrolu jeho \u010dinnosti a Ferrantiho transform\u00e1tor. Posledn\u00ed z uveden\u00fdch komponent\u016f je nezbytn\u00fd pro spr\u00e1vnou funkci jisti\u010de. Je zodpov\u011bdn\u00fd za m\u011b\u0159en\u00ed svodov\u00e9ho proudu.<\/p>\n\n\n\n<h2>Typy proudov\u00fdch chr\u00e1ni\u010d\u016f<\/h2>\n\n\n\n<p><strong>V sou\u010dasn\u00e9 dob\u011b je na trhu n\u011bkolik typ\u016f proudov\u00fdch chr\u00e1ni\u010d\u016f. D\u011bl\u00ed se podle n\u011bkolika krit\u00e9ri\u00ed:<\/strong><\/p>\n\n\n\n<ol><li>provozn\u00ed proud (vysoce citliv\u00fd, st\u0159edn\u00ed citliv\u00fd, sp\u00edna\u010d s n\u00edzkou citlivost\u00ed),<\/li><li>typy detekovan\u00fdch svodov\u00fdch proud\u016f (AC &#8211; sinusov\u00fd st\u0159\u00eddav\u00fd proud, A &#8211; sinusov\u00fd st\u0159\u00eddav\u00fd proud a polousm\u011brn\u011bn\u00fd a pulzn\u00ed proud, B &#8211; st\u0159\u00eddav\u00fd proud sinusov\u00fd, sinusov\u00fd, celovlnn\u00fd usm\u011brn\u011bn\u00fd proud, pulzn\u00ed i stejnosm\u011brn\u00fd proud),<\/li><li>nadproudov\u00e1 ochrana (RCCB &#8211; proudov\u00fd chr\u00e1ni\u010d bez vestav\u011bn\u00e9 nadproudov\u00e9 ochrany, RCBO &#8211; proudov\u00fd chr\u00e1ni\u010d s nadproudovou ochranou ). RCD prod\u00e1vaj\u00ed obchody specializovan\u00e9 na elektrick\u00e1 za\u0159\u00edzen\u00ed. Pamatujte, \u017ee p\u0159ed n\u00e1kupem se rozhodn\u011b vyplat\u00ed nechat si poradit od specialist\u016f v tomto oboru.<\/li><\/ol>\n\n\n\n<h2>Nezbytn\u00e9 p\u0159\u00edslu\u0161enstv\u00ed<\/h2>\n\n\n\n<p>P\u0159i zabezpe\u010den\u00ed na\u0161\u00ed elektroinstalace mohou b\u00fdt krom\u011b proudov\u00fdch chr\u00e1ni\u010d\u016f mimo\u0159\u00e1dn\u011b n\u00e1pomocn\u00e9 r\u016fzn\u00e9 p\u0159\u00edslu\u0161enstv\u00ed s nimi souvisej\u00edc\u00ed. Jde mimo jin\u00e9 o speci\u00e1ln\u00ed pomocn\u00e9 kontakty, d\u00edky kter\u00fdm m\u016f\u017eeme ovl\u00e1dat \u010dinnost sp\u00edna\u010de na d\u00e1lku. Krom\u011b toho existuj\u00ed tak\u00e9 u\u017eite\u010dn\u00e9 syst\u00e9my, kter\u00e9 aktivuj\u00ed proudov\u00e9 chr\u00e1ni\u010de v p\u0159\u00edpad\u011b jejich odpojen\u00ed. P\u0159edstavuj\u00ed jakousi dvoj\u00ed ochranu. Na trhu je tak\u00e9 mnoho signaliza\u010dn\u00edch kontakt\u016f, kter\u00e9 n\u00e1m d\u00e1vaj\u00ed v\u011bd\u011bt o provozu za\u0159\u00edzen\u00ed.<\/p>\n<!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Je v na\u0161ich domovn\u00edch rozvad\u011b\u010d\u00edch t\u00e9m\u011b\u0159 t\u0159icet let, p\u0159esto z\u016fst\u00e1v\u00e1 prakticky nezn\u00e1m\u00fd a docela z\u00e1hadn\u00fd. Proudov\u00fd chr\u00e1ni\u010d, lidov\u011b \u201ediferenci\u00e1ln\u00ed\u201c. \u010casto je pro pohodl\u00ed, zejm\u00e9na v<\/p>\n","protected":false},"author":10,"featured_media":18602,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1179],"tags":[1188],"acf":[],"_links":{"self":[{"href":"https:\/\/www.souteze.cz\/magazin\/wp-json\/wp\/v2\/posts\/18598"}],"collection":[{"href":"https:\/\/www.souteze.cz\/magazin\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.souteze.cz\/magazin\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.souteze.cz\/magazin\/wp-json\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/www.souteze.cz\/magazin\/wp-json\/wp\/v2\/comments?post=18598"}],"version-history":[{"count":3,"href":"https:\/\/www.souteze.cz\/magazin\/wp-json\/wp\/v2\/posts\/18598\/revisions"}],"predecessor-version":[{"id":19007,"href":"https:\/\/www.souteze.cz\/magazin\/wp-json\/wp\/v2\/posts\/18598\/revisions\/19007"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.souteze.cz\/magazin\/wp-json\/wp\/v2\/media\/18602"}],"wp:attachment":[{"href":"https:\/\/www.souteze.cz\/magazin\/wp-json\/wp\/v2\/media?parent=18598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.souteze.cz\/magazin\/wp-json\/wp\/v2\/categories?post=18598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.souteze.cz\/magazin\/wp-json\/wp\/v2\/tags?post=18598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}