{"id":21668,"date":"2026-03-17T18:50:32","date_gmt":"2026-03-17T10:50:32","guid":{"rendered":"https:\/\/viox.com\/?p=21668"},"modified":"2026-03-17T18:50:35","modified_gmt":"2026-03-17T10:50:35","slug":"rcb-full-form-residual-current-breaker","status":"publish","type":"post","link":"https:\/\/test.viox.com\/cs\/rcb-full-form-residual-current-breaker\/","title":{"rendered":"RCB \u2013 pln\u00fd v\u00fdznam v elektrotechnice: Vysv\u011btlen\u00ed proudov\u00e9ho chr\u00e1ni\u010de (pr\u016fvodce 2026)"},"content":{"rendered":"<div class=\"product-intro\">\n<p>P\u0159i hled\u00e1n\u00ed <strong>RCB Pln\u00fd V\u00fdznam v Elektrotechnice<\/strong>, hled\u00e1te jasnou odpov\u011b\u010f: <strong>RCB znamen\u00e1 Jisti\u010d Zbytkov\u00e9ho Proudu (Residual Current Breaker)<\/strong>. Toto \u017eivot zachra\u0148uj\u00edc\u00ed elektrick\u00e9 bezpe\u010dnostn\u00ed za\u0159\u00edzen\u00ed je navr\u017eeno k ochran\u011b p\u0159ed \u00farazem elektrick\u00fdm proudem a po\u017e\u00e1rem detekc\u00ed svodov\u00e9ho proudu \u2013 proudu, kter\u00fd unik\u00e1 z ur\u010den\u00e9 cesty obvodu, nap\u0159\u00edklad skrze t\u011blo osoby nebo po\u0161kozenou izolaci.<\/p>\n<p>Ale pochopen\u00ed <strong>RCB Pln\u00fd V\u00fdznam<\/strong> je jen za\u010d\u00e1tek. V re\u00e1ln\u00fdch elektrick\u00fdch instalac\u00edch se term\u00edn RCB \u010dasto pou\u017e\u00edv\u00e1 zam\u011bniteln\u011b s RCD (Residual Current Device) a RCCB (Residual Current Circuit Breaker), co\u017e vytv\u00e1\u0159\u00ed zmatek pro mnoho elektrik\u00e1\u0159\u016f, in\u017een\u00fdr\u016f a majitel\u016f dom\u016f.<\/p>\n<p>Tento komplexn\u00ed pr\u016fvodce pro rok 2026 vysv\u011btluje nejen co <strong>RCB Pln\u00fd V\u00fdznam<\/strong> znamen\u00e1, ale tak\u00e9 jak Jisti\u010de Zbytkov\u00e9ho Proudu funguj\u00ed, z\u00e1sadn\u00ed rozd\u00edly mezi RCB, RCCB, RCD a RCBO, kdy pou\u017e\u00edt ka\u017ed\u00fd typ za\u0159\u00edzen\u00ed pro ochranu proti zbytkov\u00e9mu proudu a re\u00e1ln\u00e9 aplikace, kter\u00e9 mohou zachr\u00e1nit \u017eivoty.<\/p>\n<h2>Co je RCB Pln\u00fd V\u00fdznam v Elektrotechnice?<\/h2>\n<p>V elektrick\u00fdch syst\u00e9mech, <strong>RCB Pln\u00fd V\u00fdznam<\/strong> znamen\u00e1 <strong>Proudov\u00fd chr\u00e1ni\u010d<\/strong>.<\/p>\n<p>RCB je ochrann\u00e9 za\u0159\u00edzen\u00ed spojen\u00e9 s detekc\u00ed <strong>svodov\u00e9ho proudu<\/strong> nebo <strong>zbytkov\u00e9ho proudu<\/strong>. Jednodu\u0161e \u0159e\u010deno, neust\u00e1le monitoruje rovnov\u00e1hu mezi proudem tekouc\u00edm ven \u017eiv\u00fdm vodi\u010dem a proudem vracej\u00edc\u00edm se nulov\u00fdm vodi\u010dem. Pokud \u010d\u00e1st tohoto proudu unikne \u2013 nap\u0159\u00edklad skrze po\u0161kozenou izolaci, vadn\u00e9 za\u0159\u00edzen\u00ed nebo skrze osobu dot\u00fdkaj\u00edc\u00ed se \u017eiv\u00fdch \u010d\u00e1st\u00ed \u2013 za\u0159\u00edzen\u00ed detekuje tuto nerovnov\u00e1hu a okam\u017eit\u011b vypne, aby odpojilo obvod.<\/p>\n<figure>\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/RCB-Full-Form-Residual-Current-Breaker-device-installed-in-distribution-board.webp\" alt=\"RCB Full Form Residual Current Breaker device installed in distribution board\" style=\"max-width: 100%; display: block; margin: 0 auto;\"><figcaption><em>RCB (Jisti\u010d Zbytkov\u00e9ho Proudu) bezpe\u010dn\u011b instalov\u00e1n v elektrick\u00e9m rozvad\u011b\u010di pro ochranu proti zemn\u00edmu svodu.<\/em><\/figcaption><\/figure>\n<h3>Tabulka rychl\u00e9 orientace<\/h3>\n<table border=\"1\" style=\"border-collapse: collapse; width: 100%;\">\n<thead>\n<tr>\n<th style=\"padding: 8px; text-align: left;\">Term\u00edn<\/th>\n<th style=\"padding: 8px; text-align: left;\">Pln\u00fd V\u00fdznam<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><strong>RCB Pln\u00fd V\u00fdznam<\/strong><\/td>\n<td style=\"padding: 8px;\">Proudov\u00fd chr\u00e1ni\u010d<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Hlavn\u00ed \u00da\u010del<\/strong><\/td>\n<td style=\"padding: 8px;\">Detekovat zbytkov\u00fd proud nebo zemn\u00ed svod a odpojit obvod<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Prim\u00e1rn\u00ed Bezpe\u010dnostn\u00ed Hodnota<\/strong><\/td>\n<td style=\"padding: 8px;\">Sn\u00ed\u017eit riziko \u00farazu elektrick\u00fdm proudem a zabr\u00e1nit elektrick\u00fdm po\u017e\u00e1r\u016fm zp\u016fsoben\u00fdm zemn\u00edmi poruchami<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>B\u011b\u017en\u011b Zam\u011b\u0148ov\u00e1no S<\/strong><\/td>\n<td style=\"padding: 8px;\"><a href=\"https:\/\/test.viox.com\/cs\/rcd-vs-mcb-understanding-the-key-differences-in-electrical-protection-devices\/\">proudov\u00fd chr\u00e1ni\u010d (RCD)<\/a>, <a href=\"https:\/\/test.viox.com\/cs\/rccb-full-form-understanding-residual-current-circuit-breakers\/\">RCCB<\/a>, <a href=\"https:\/\/test.viox.com\/cs\/rcbo-vs-rccb-mcb-comparison-space-cost-selectivity\/\">RCBO<\/a>a <a href=\"https:\/\/test.viox.com\/cs\/mcb-full-form-in-electrical\/\">MCB<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Tak\u017ee pokud je va\u0161\u00edm jedin\u00fdm c\u00edlem odpov\u011bd\u011bt <strong>co je RCB Pln\u00fd V\u00fdznam<\/strong>, odpov\u011b\u010f je p\u0159\u00edmo\u010dar\u00e1: <strong>Proudov\u00fd chr\u00e1ni\u010d<\/strong>. Ale pokud chcete skute\u010dn\u011b porozum\u011bt elektrick\u00e9 bezpe\u010dnosti a \u010dinit informovan\u00e1 rozhodnut\u00ed o ochran\u011b obvod\u016f, mus\u00edte pochopit, jak se tento term\u00edn pou\u017e\u00edv\u00e1 v praxi a jak se li\u0161\u00ed od souvisej\u00edc\u00edch za\u0159\u00edzen\u00ed.<\/p>\n<h2>Co D\u011bl\u00e1 RCB?<\/h2>\n<p>RCB (Jisti\u010d Zbytkov\u00e9ho Proudu) je speci\u00e1ln\u011b navr\u017een k odpojen\u00ed obvodu, kdy\u017e detekuje rozd\u00edl mezi odchoz\u00edm proudem a vracej\u00edc\u00edm se proudem. Za norm\u00e1ln\u00edch, zdrav\u00fdch provozn\u00edch podm\u00ednek by se proud odch\u00e1zej\u00edc\u00ed \u017eiv\u00fdm vodi\u010dem m\u011bl p\u0159esn\u011b shodovat s proudem vracej\u00edc\u00edm se nulov\u00fdm vodi\u010dem.<\/p>\n<p>Kdy\u017e dojde k nerovnov\u00e1ze \u2013 co\u017e znamen\u00e1, \u017ee \u010d\u00e1st proudu se ub\u00edr\u00e1 ne\u00famyslnou cestou k zemi \u2013 RCB to interpretuje jako nebezpe\u010dn\u00fd svod nebo poruchov\u00fd stav a vypne b\u011bhem milisekund, typicky 25-40 milisekund. Tato rychl\u00e1 reakce je z\u00e1sadn\u00ed, proto\u017ee nastane d\u0159\u00edve, ne\u017e m\u016f\u017ee elektrick\u00fd \u0161ok zp\u016fsobit fibrilaci komor, nej\u010dast\u011bj\u0161\u00ed p\u0159\u00ed\u010dinu smrti elektrick\u00fdm proudem.<\/p>\n<p>Proto jsou za\u0159\u00edzen\u00ed typu RCB nezbytn\u00e1 pro:<\/p>\n<ul>\n<li><strong>Ochrana p\u0159ed \u00farazem elektrick\u00fdm proudem<\/strong> \u2013 Detekci proudu prot\u00e9kaj\u00edc\u00edho t\u011blem osoby do zem\u011b<\/li>\n<li><strong>Ochrana proti zemn\u00edmu \u00faniku<\/strong> \u2013 Identifikaci poruch izolace nebo zemn\u00edch poruch d\u0159\u00edve, ne\u017e zp\u016fsob\u00ed po\u017e\u00e1ry<\/li>\n<li><strong>Sn\u00ed\u017een\u00ed rizika po\u017e\u00e1ru<\/strong> \u2013 Prevenci elektrick\u00fdch po\u017e\u00e1r\u016f zp\u016fsoben\u00fdch trval\u00fdmi svodov\u00fdmi proudy, kter\u00e9 generuj\u00ed teplo<\/li>\n<li><strong>Zv\u00fd\u0161en\u00e1 bezpe\u010dnost ve vlhk\u00e9m prost\u0159ed\u00ed<\/strong> \u2013 Kritick\u00e1 ochrana v koupeln\u00e1ch, kuchyn\u00edch, venkovn\u00edch prostor\u00e1ch a dal\u0161\u00edch m\u00edstech n\u00e1chyln\u00fdch k vlhkosti<\/li>\n<li><strong>Ochrana za\u0159\u00edzen\u00ed<\/strong> \u2013 Ochrana citliv\u00e9 elektroniky p\u0159ed po\u0161kozen\u00edm zemn\u00ed poruchou<\/li>\n<\/ul>\n<p>Tento z\u00e1sadn\u00ed rozd\u00edl vysv\u011btluje, pro\u010d RCB nen\u00ed tot\u00e9\u017e co \u010dist\u011b nadproudov\u00e9 za\u0159\u00edzen\u00ed, jako je <a href=\"https:\/\/test.viox.com\/cs\/what-is-a-miniature-circuit-breaker-mcb\/\">MCB (miniaturn\u00ed jisti\u010d)<\/a>. Zat\u00edmco MCB chr\u00e1n\u00ed proti p\u0159et\u00ed\u017een\u00ed a zkrat\u016fm, nemohou detekovat mal\u00e9 svodov\u00e9 proudy, kter\u00e9 p\u0159edstavuj\u00ed riziko \u00farazu elektrick\u00fdm proudem.<\/p>\n<h2>Jak Funguje RCB? Princip Fungov\u00e1n\u00ed<\/h2>\n<p>Abyste skute\u010dn\u011b porozum\u011bli <strong>RCB Pln\u00fd V\u00fdznam<\/strong> a jeho d\u016fle\u017eitosti, mus\u00edte pochopit z\u00e1kladn\u00ed princip fungov\u00e1n\u00ed detekce zbytkov\u00e9ho proudu.<\/p>\n<figure>\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/How-RCB-Residual-Current-Breaker-works-diagram-showing-current-balance-detection.webp\" alt=\"How RCB Residual Current Breaker works diagram showing current balance detection\" style=\"max-width: 100%; display: block; margin: 0 auto;\"><figcaption><em>Diagram ilustruj\u00edc\u00ed princip fungov\u00e1n\u00ed RCB a jak jeho toroidn\u00ed transform\u00e1tor detekuje rovnov\u00e1hu proudu a svod.<\/em><\/figcaption><\/figure>\n<p>RCB pou\u017e\u00edv\u00e1 diferenci\u00e1ln\u00ed proudov\u00fd transform\u00e1tor (tak\u00e9 naz\u00fdvan\u00fd toroidn\u00ed transform\u00e1tor nebo transform\u00e1tor s vyv\u00e1\u017een\u00fdm j\u00e1drem), kter\u00fd obklopuje jak \u017eiv\u00fd, tak nulov\u00fd vodi\u010d. Ve zdrav\u00e9m obvodu se magnetick\u00e1 pole generovan\u00e1 odchoz\u00edm a vracej\u00edc\u00edm se proudem dokonale vyru\u0161\u00ed, co\u017e m\u00e1 za n\u00e1sledek nulov\u00fd \u010dist\u00fd magnetick\u00fd tok v j\u00e1dru transform\u00e1toru.<\/p>\n<p>Kdy\u017e v\u0161ak dojde ke svodu \u2013 a\u0165 u\u017e skrze po\u0161kozenou izolaci, vniknut\u00ed vlhkosti nebo osobu dot\u00fdkaj\u00edc\u00ed se \u017eiv\u00fdch \u010d\u00e1st\u00ed \u2013 \u010d\u00e1st proudu se vrac\u00ed ke zdroji alternativn\u00ed cestou (typicky skrze ochrannou zem nebo zem). To vytv\u00e1\u0159\u00ed nerovnov\u00e1hu v magnetick\u00fdch pol\u00edch, indukuj\u00edc\u00ed nap\u011bt\u00ed v sekund\u00e1rn\u00edm vinut\u00ed transform\u00e1toru. Kdy\u017e toto nap\u011bt\u00ed p\u0159ekro\u010d\u00ed p\u0159edem stanovenou prahovou hodnotu (odpov\u00eddaj\u00edc\u00ed jmenovit\u00e9mu zbytkov\u00e9mu provozn\u00edmu proudu za\u0159\u00edzen\u00ed, typicky 10mA, 30mA, 100mA nebo 300mA), spust\u00ed rel\u00e9ov\u00fd mechanismus, kter\u00fd mechanicky vypne kontakty jisti\u010de.<\/p>\n<h3>Z\u00e1kladn\u00ed Provozn\u00ed Logika<\/h3>\n<table border=\"1\" style=\"border-collapse: collapse; width: 100%;\">\n<thead>\n<tr>\n<th style=\"padding: 8px; text-align: left;\">Stav Obvodu<\/th>\n<th style=\"padding: 8px; text-align: left;\">Co RCB Detekuje<\/th>\n<th style=\"padding: 8px; text-align: left;\">Typick\u00fd V\u00fdsledek<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><strong>Normal operation<\/strong><\/td>\n<td style=\"padding: 8px;\">Odchoz\u00ed proud se p\u0159esn\u011b rovn\u00e1 vracej\u00edc\u00edmu se proudu<\/td>\n<td style=\"padding: 8px;\">\u017d\u00e1dn\u00e9 vypnut\u00ed \u2013 obvod z\u016fst\u00e1v\u00e1 pod nap\u011bt\u00edm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Zemn\u00ed svod<\/strong><\/td>\n<td style=\"padding: 8px;\">Odchoz\u00ed proud p\u0159ekra\u010duje vracej\u00edc\u00ed se proud<\/td>\n<td style=\"padding: 8px;\">Vypnut\u00ed, pokud svod p\u0159ekro\u010d\u00ed citlivost za\u0159\u00edzen\u00ed (nap\u0159. 30mA)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Osoba se dotkne vadn\u00e9ho za\u0159\u00edzen\u00ed<\/strong><\/td>\n<td style=\"padding: 8px;\">\u010c\u00e1st proudu prot\u00e9k\u00e1 t\u011blem osoby do zem\u011b<\/td>\n<td style=\"padding: 8px;\">Okam\u017eit\u00e9 vypnut\u00ed b\u011bhem 25-40ms, zabra\u0148uj\u00edc\u00ed smrteln\u00e9mu \u0161oku<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Porucha izolace<\/strong><\/td>\n<td style=\"padding: 8px;\">Postupn\u00e9 nebo n\u00e1hl\u00e9 svodov\u00e9 proudy do zem\u011b<\/td>\n<td style=\"padding: 8px;\">Vypnut\u00ed, kdy\u017e kumulativn\u00ed svod dos\u00e1hne prahov\u00e9 hodnoty<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Tento princip je d\u016fvodem, pro\u010d je ochrana proti zbytkov\u00e9mu proudu tak kritick\u00e1 v obvodech, kde je riziko kontaktu s \u010dlov\u011bkem v\u00fdznamn\u00e9, a pro\u010d je na\u0159\u00edzena elektrick\u00fdmi p\u0159edpisy, jako je <a href=\"https:\/\/test.viox.com\/cs\/nec-vs-iec-terminology-correspondence\/\">NEC (N\u00e1rodn\u00ed elektrotechnick\u00fd p\u0159edpis)<\/a> a normami IEC pro specifick\u00e9 aplikace.<\/p>\n<h2>Technick\u00e9 Specifikace RCB, Kter\u00e9 Byste M\u011bli Zn\u00e1t<\/h2>\n<p>Porozum\u011bn\u00ed <strong>RCB Pln\u00fd V\u00fdznam<\/strong> tak\u00e9 znamen\u00e1 zn\u00e1t kl\u00ed\u010dov\u00e9 technick\u00e9 parametry, kter\u00e9 definuj\u00ed v\u00fdkon za\u0159\u00edzen\u00ed:<\/p>\n<table border=\"1\" style=\"border-collapse: collapse; width: 100%;\">\n<thead>\n<tr>\n<th style=\"padding: 8px; text-align: left;\">Parametr<\/th>\n<th style=\"padding: 8px; text-align: left;\">Typick\u00e9 hodnoty<\/th>\n<th style=\"padding: 8px; text-align: left;\">\u00da\u010del<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><strong>Jmenovit\u00fd rezidu\u00e1ln\u00ed proud (I\u0394n)<\/strong><\/td>\n<td style=\"padding: 8px;\">10mA, 30mA, 100mA, 300mA, 500mA<\/td>\n<td style=\"padding: 8px;\">Prahov\u00e1 hodnota citlivosti vypnut\u00ed \u2013 ni\u017e\u0161\u00ed hodnoty poskytuj\u00ed lep\u0161\u00ed ochranu p\u0159ed \u00farazem elektrick\u00fdm proudem<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Doba odezvy<\/strong><\/td>\n<td style=\"padding: 8px;\">25-40 milisekund (p\u0159i jmenovit\u00e9m I\u0394n)<\/td>\n<td style=\"padding: 8px;\">Rychlost odpojen\u00ed \u2013 kritick\u00e1 pro prevenci smrteln\u00fdch \u00faraz\u016f elektrick\u00fdm proudem<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Jmenovit\u00e9 nap\u011bt\u00ed (Ue)<\/strong><\/td>\n<td style=\"padding: 8px;\">230V AC (jednof\u00e1zov\u00e9), 400V AC (t\u0159\u00edf\u00e1zov\u00e9)<\/td>\n<td style=\"padding: 8px;\">Maxim\u00e1ln\u00ed trval\u00e9 provozn\u00ed nap\u011bt\u00ed<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Jmenovit\u00fd proud (In)<\/strong><\/td>\n<td style=\"padding: 8px;\">16A, 25A, 32A, 40A, 63A, 80A, 100A, 125A<\/td>\n<td style=\"padding: 8px;\">Maxim\u00e1ln\u00ed proudov\u00e9 zat\u00ed\u017een\u00ed, kter\u00e9 za\u0159\u00edzen\u00ed dok\u00e1\u017ee trvale p\u0159en\u00e1\u0161et<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Po\u010det p\u00f3l\u016f<\/strong><\/td>\n<td style=\"padding: 8px;\">2-p\u00f3lov\u00e9 (1P+N), 4-p\u00f3lov\u00e9 (3P+N)<\/td>\n<td style=\"padding: 8px;\">Konfigurace obvodu \u2013 jednof\u00e1zov\u00fd nebo t\u0159\u00edf\u00e1zov\u00fd<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Typ<\/strong><\/td>\n<td style=\"padding: 8px;\">Typ AC, Typ A, Typ B, Typ F<\/td>\n<td style=\"padding: 8px;\">Citlivost na pr\u016fb\u011bh vlny \u2013 ur\u010duje, jak\u00e9 typy unikaj\u00edc\u00edch proud\u016f lze detekovat<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Vyp\u00ednac\u00ed schopnost<\/strong><\/td>\n<td style=\"padding: 8px;\">6kA, 10kA (typick\u00e9 pro RCCB)<\/td>\n<td style=\"padding: 8px;\">Schopnost bezpe\u010dn\u011b p\u0159eru\u0161it poruchov\u00e9 proudy<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Podrobn\u00e9 pokyny pro v\u00fdb\u011br spr\u00e1vn\u00e9 citlivosti naleznete v na\u0161em \u010dl\u00e1nku o <a href=\"https:\/\/test.viox.com\/cs\/how-to-choose-the-right-rccb-sensitivity\/\">jak vybrat spr\u00e1vnou citlivost RCCB<\/a>.<\/p>\n<h2>Je RCB tot\u00e9\u017e co RCCB nebo RCD? Vyjasn\u011bn\u00ed nejasnost\u00ed<\/h2>\n<p>Toto je \u010d\u00e1st, kterou mnoho konkuren\u010dn\u00edch str\u00e1nek nedok\u00e1\u017ee adekv\u00e1tn\u011b vysv\u011btlit, p\u0159esto je z\u00e1sadn\u00ed pro pochopen\u00ed <strong>RCB Pln\u00fd V\u00fdznam<\/strong> v kontextu.<\/p>\n<figure>\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/Difference-between-RCB-RCCB-RCD-and-RCBO-circuit-breakers-comparison.webp\" alt=\"Difference between RCB RCCB RCD and RCBO circuit breakers comparison\" style=\"max-width: 100%; display: block; margin: 0 auto;\"><figcaption><em>Vizu\u00e1ln\u00ed srovn\u00e1vac\u00ed tabulka rozeb\u00edraj\u00edc\u00ed rozd\u00edly a funkce mezi jisti\u010di RCB, RCCB, RCD a RCBO.<\/em><\/figcaption><\/figure>\n<h3>RCB jako \u0161irok\u00fd nebo zjednodu\u0161en\u00fd term\u00edn<\/h3>\n<p>Na n\u011bkter\u00fdch trz\u00edch a v b\u011b\u017en\u00fdch rozhovorech, <strong>RCB<\/strong> se pou\u017e\u00edv\u00e1 jako \u0161irok\u00fd nebo zjednodu\u0161en\u00fd term\u00edn pro jak\u00fdkoli jisti\u010d, kter\u00fd reaguje na rezidu\u00e1ln\u00ed proud. \u010casto jej neform\u00e1ln\u011b pou\u017e\u00edvaj\u00ed elektrik\u00e1\u0159i a v regionech, kde nen\u00ed p\u0159esn\u00e1 terminologie striktn\u011b vy\u017eadov\u00e1na. Tato nep\u0159esnost v\u0161ak m\u016f\u017ee v\u00e9st k nejasnostem p\u0159i specifikaci za\u0159\u00edzen\u00ed nebo interpretaci technick\u00e9 dokumentace.<\/p>\n<h3>RCD jako \u0161ir\u0161\u00ed kategori\u00e1ln\u00ed term\u00edn<\/h3>\n<p><strong>proudov\u00fd chr\u00e1ni\u010d (RCD)<\/strong> obvykle znamen\u00e1 <strong>Proudov\u00fd chr\u00e1ni\u010d<\/strong>. Je to zast\u0159e\u0161uj\u00edc\u00ed term\u00edn pou\u017e\u00edvan\u00fd v norm\u00e1ch IEC a na mnoha mezin\u00e1rodn\u00edch trz\u00edch pro celou rodinu za\u0159\u00edzen\u00ed, kter\u00e1 poskytuj\u00ed ochranu proti rezidu\u00e1ln\u00edmu proudu. RCD se m\u016f\u017ee vztahovat na:<\/p>\n<ul>\n<li>Proudov\u00e9 chr\u00e1ni\u010de (RCCB)<\/li>\n<li>Jisti\u010de rezidu\u00e1ln\u00edho proudu s nadproudovou ochranou (RCBO)<\/li>\n<li>Monitory rezidu\u00e1ln\u00edho proudu (RCM)<\/li>\n<li>P\u0159enosn\u00e9 RCD (z\u00e1suvkov\u00e9 RCD)<\/li>\n<\/ul>\n<p>Podrobn\u00e9 srovn\u00e1n\u00ed naleznete v na\u0161em komplexn\u00edm pr\u016fvodci <a href=\"https:\/\/test.viox.com\/cs\/rcd-vs-mcb-understanding-the-key-differences-in-electrical-protection-devices\/\">Rozd\u00edly mezi RCD a MCB<\/a>.<\/p>\n<h3>RCCB jako specifi\u010dt\u011bj\u0161\u00ed n\u00e1zev za\u0159\u00edzen\u00ed<\/h3>\n<p><strong>RCCB<\/strong> znamen\u00e1 <strong>Proudov\u00fd chr\u00e1ni\u010d<\/strong>. Ve v\u011bt\u0161in\u011b modern\u00edch produktov\u00fdch katalog\u016f, technick\u00fdch norem (jako je IEC 61008) a odborn\u00fdch elektrotechnick\u00fdch diskus\u00edch je to p\u0159esn\u00fd n\u00e1zev za\u0159\u00edzen\u00ed pro jisti\u010d, kter\u00fd:<\/p>\n<ul>\n<li>Vyp\u00edn\u00e1 p\u0159i rezidu\u00e1ln\u00edm proudu (zemn\u00edm \u00faniku)<\/li>\n<li>NEPOSKYTUJE nadproudovou ochranu (\u017e\u00e1dn\u00e1 vestav\u011bn\u00e1 funkce MCB)<\/li>\n<li>Vy\u017eaduje samostatn\u00fd MCB nebo pojistku pro ochranu proti p\u0159et\u00ed\u017een\u00ed a zkratu<\/li>\n<\/ul>\n<p>Zjist\u011bte v\u00edce v na\u0161em podrobn\u00e9m <a href=\"https:\/\/test.viox.com\/cs\/rccb-full-form-understanding-residual-current-circuit-breakers\/\">Pr\u016fvodce \u00fapln\u00fdm formul\u00e1\u0159em RCCB<\/a>.<\/p>\n<h3>Pro\u010d na t\u00e9to terminologii z\u00e1le\u017e\u00ed pro SEO a kupuj\u00edc\u00ed za\u0159\u00edzen\u00ed<\/h3>\n<p>Mnoho u\u017eivatel\u016f hled\u00e1 <strong>RCB Pln\u00fd V\u00fdznam<\/strong>, ale ve skute\u010dnosti pot\u0159ebuj\u00ed pochopit vztah a rozd\u00edly mezi t\u011bmito souvisej\u00edc\u00edmi term\u00edny:<\/p>\n<ul>\n<li><strong>RCB<\/strong> \u2013 Neform\u00e1ln\u00ed nebo zjednodu\u0161en\u00fd term\u00edn<\/li>\n<li><strong>proudov\u00fd chr\u00e1ni\u010d (RCD)<\/strong> \u2013 \u0160irok\u00e1 kategorie zahrnuj\u00edc\u00ed v\u0161echna za\u0159\u00edzen\u00ed na ochranu proti rezidu\u00e1ln\u00edmu proudu<\/li>\n<li><strong>RCCB<\/strong> \u2013 Specifick\u00e9 ozna\u010den\u00ed produktu pouze pro ochranu proti rezidu\u00e1ln\u00edmu proudu<\/li>\n<li><strong>RCBO<\/strong> \u2013 Kombinovan\u00e1 ochrana proti rezidu\u00e1ln\u00edmu proudu A nadproudu v jednom za\u0159\u00edzen\u00ed<\/li>\n<\/ul>\n<p>Pochopen\u00ed t\u011bchto rozd\u00edl\u016f je z\u00e1sadn\u00ed, kdy\u017e:<\/p>\n<ul>\n<li>\u010cten\u00ed elektrick\u00fdch v\u00fdkres\u016f a specifikac\u00ed<\/li>\n<li>Objedn\u00e1v\u00e1n\u00ed za\u0159\u00edzen\u00ed od dodavatel\u016f<\/li>\n<li>Zaji\u0161t\u011bn\u00ed souladu s p\u0159edpisy<\/li>\n<li>\u0158e\u0161en\u00ed probl\u00e9m\u016f s koordinac\u00ed ochrany<\/li>\n<li>Komunikace s mezin\u00e1rodn\u00edmi partnery<\/li>\n<\/ul>\n<h3>Komplexn\u00ed srovn\u00e1vac\u00ed tabulka: RCB vs RCD vs RCCB vs RCBO<\/h3>\n<table border=\"1\" style=\"border-collapse: collapse; width: 100%;\">\n<thead>\n<tr>\n<th style=\"padding: 8px; text-align: left;\">Term\u00edn<\/th>\n<th style=\"padding: 8px; text-align: left;\">\u00dapln\u00fd formul\u00e1\u0159<\/th>\n<th style=\"padding: 8px; text-align: left;\">Jak se b\u011b\u017en\u011b pou\u017e\u00edv\u00e1<\/th>\n<th style=\"padding: 8px; text-align: left;\">Nadproudov\u00e1 ochrana<\/th>\n<th style=\"padding: 8px; text-align: left;\">Ochrana proti rezidu\u00e1ln\u00edmu proudu<\/th>\n<th style=\"padding: 8px; text-align: left;\">Kl\u00ed\u010dov\u00e1 aplika\u010dn\u00ed pozn\u00e1mka<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><strong>RCB<\/strong><\/td>\n<td style=\"padding: 8px;\">Proudov\u00fd chr\u00e1ni\u010d<\/td>\n<td style=\"padding: 8px;\">Neform\u00e1ln\u00ed\/obecn\u00fd term\u00edn v b\u011b\u017en\u00e9m pou\u017e\u00edv\u00e1n\u00ed<\/td>\n<td style=\"padding: 8px;\">Z\u00e1le\u017e\u00ed na kontextu<\/td>\n<td style=\"padding: 8px;\">Ano<\/td>\n<td style=\"padding: 8px;\">M\u016f\u017ee b\u00fdt nejednozna\u010dn\u00fd \u2013 objasn\u011bte, kter\u00fd konkr\u00e9tn\u00ed typ za\u0159\u00edzen\u00ed je zam\u00fd\u0161len<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>proudov\u00fd chr\u00e1ni\u010d (RCD)<\/strong><\/td>\n<td style=\"padding: 8px;\">Proudov\u00fd chr\u00e1ni\u010d<\/td>\n<td style=\"padding: 8px;\">\u0160irok\u00fd kategori\u00e1ln\u00ed term\u00edn IEC pokr\u00fdvaj\u00edc\u00ed v\u0161echna za\u0159\u00edzen\u00ed na ochranu proti rezidu\u00e1ln\u00edmu proudu<\/td>\n<td style=\"padding: 8px;\">Li\u0161\u00ed se podle typu<\/td>\n<td style=\"padding: 8px;\">Ano<\/td>\n<td style=\"padding: 8px;\">Zast\u0159e\u0161uj\u00edc\u00ed term\u00edn \u2013 nejedn\u00e1 se o konkr\u00e9tn\u00ed ozna\u010den\u00ed produktu<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>RCCB<\/strong><\/td>\n<td style=\"padding: 8px;\">Proudov\u00fd chr\u00e1ni\u010d<\/td>\n<td style=\"padding: 8px;\">P\u0159esn\u00fd term\u00edn produktu v modern\u00edch kataloz\u00edch a norm\u011b IEC 61008<\/td>\n<td style=\"padding: 8px;\">Ne \u2013 vy\u017eaduje samostatn\u00fd MCB<\/td>\n<td style=\"padding: 8px;\">Ano<\/td>\n<td style=\"padding: 8px;\">Vyhrazen\u00e1 ochrana proti zemn\u00edmu \u00faniku \u2013 nejb\u011b\u017en\u011bj\u0161\u00ed v obytn\u00fdch\/komer\u010dn\u00edch prostorech<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>RCBO<\/strong><\/td>\n<td style=\"padding: 8px;\">Proudov\u00fd chr\u00e1ni\u010d s nadproudovou ochranou<\/td>\n<td style=\"padding: 8px;\">Kombinovan\u00e9 ochrann\u00e9 za\u0159\u00edzen\u00ed dle IEC 61009<\/td>\n<td style=\"padding: 8px;\">Ano \u2013 integrovan\u00e1 funkce MCB<\/td>\n<td style=\"padding: 8px;\">Ano<\/td>\n<td style=\"padding: 8px;\">Prostorov\u011b \u00fasporn\u00e9 \u0159e\u0161en\u00ed v\u0161e v jednom \u2013 ide\u00e1ln\u00ed pro ochranu jednotliv\u00fdch obvod\u016f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Pro hlub\u0161\u00ed technick\u00e9 srovn\u00e1n\u00ed a pokyny pro v\u00fdb\u011br si p\u0159e\u010dt\u011bte n\u00e1\u0161 \u010dl\u00e1nek o <a href=\"https:\/\/test.viox.com\/cs\/rcbo-vs-rccb-mcb-comparison-space-cost-selectivity\/\">Srovn\u00e1n\u00ed RCBO vs RCCB a MCB<\/a>.<\/p>\n<h2>RCB vs MCB: Pochopen\u00ed z\u00e1sadn\u00edho rozd\u00edlu<\/h2>\n<p>Dal\u0161\u00edm \u010dast\u00fdm d\u016fvodem, pro\u010d lid\u00e9 hledaj\u00ed <strong>RCB Pln\u00fd V\u00fdznam<\/strong> je zmatek ohledn\u011b toho, zda je RCB jednodu\u0161e jin\u00fd typ jisti\u010de, jako je <a href=\"https:\/\/test.viox.com\/cs\/mcb-full-form-in-electrical\/\">MCB<\/a>. Odpov\u011b\u010f je jednozna\u010dn\u011b ne \u2013 slou\u017e\u00ed z\u00e1sadn\u011b odli\u0161n\u00fdm ochrann\u00fdm funkc\u00edm.<\/p>\n<h3>Srovn\u00e1n\u00ed zam\u011b\u0159en\u00ed ochrany<\/h3>\n<p>. <strong>MCB (miniaturn\u00ed jisti\u010d)<\/strong> prim\u00e1rn\u011b chr\u00e1n\u00ed proti:<\/p>\n<ul>\n<li><strong>Podm\u00ednky p\u0159et\u00ed\u017een\u00ed<\/strong> \u2013 Kdy\u017e p\u0159ipojen\u00e9 zat\u00ed\u017een\u00ed p\u0159ekro\u010d\u00ed jmenovitou kapacitu obvodu<\/li>\n<li><strong>Poruchy zkratu<\/strong> \u2013 Kdy\u017e se \u017eiv\u00e9 a nulov\u00e9 vodi\u010de dostanou do p\u0159\u00edm\u00e9ho kontaktu, co\u017e zp\u016fsob\u00ed extr\u00e9mn\u011b vysok\u00e9 poruchov\u00e9 proudy<\/li>\n<li><strong>Tepeln\u00e9 po\u0161kozen\u00ed<\/strong> \u2013 Prevence p\u0159eh\u0159\u00e1t\u00ed vodi\u010d\u016f a degradace izolace v d\u016fsledku trval\u00e9ho nadproudu<\/li>\n<\/ul>\n<p>. <strong>Za\u0159\u00edzen\u00ed typu RCB<\/strong> (RCCB\/RCD) prim\u00e1rn\u011b chr\u00e1n\u00ed proti:<\/p>\n<ul>\n<li><strong>Zbytkov\u00fd proud<\/strong> \u2013 Proud unikaj\u00edc\u00ed do zem\u011b ne\u00famysln\u00fdmi cestami<\/li>\n<li><strong>Zemn\u00ed svodov\u00e9 poruchy<\/strong> \u2013 Porucha izolace umo\u017e\u0148uj\u00edc\u00ed pr\u016ftok proudu do zem\u011b<\/li>\n<li><strong>Riziko \u00farazu elektrick\u00fdm proudem<\/strong> \u2013 Proud prot\u00e9kaj\u00edc\u00ed t\u011blem osoby do zem\u011b<\/li>\n<li><strong>Elektrick\u00fd po\u017e\u00e1r od zemn\u00edch poruch<\/strong> \u2013 Trval\u00e9 svodov\u00e9 proudy, kter\u00e9 mohou zap\u00e1lit okoln\u00ed materi\u00e1ly<\/li>\n<\/ul>\n<h3>Pro\u010d pot\u0159ebujete oba typy ochrany<\/h3>\n<p>Tento z\u00e1sadn\u00ed rozd\u00edl znamen\u00e1, \u017ee \u017e\u00e1dn\u00e9 z t\u011bchto za\u0159\u00edzen\u00ed nem\u016f\u017ee pln\u011b nahradit druh\u00e9:<\/p>\n<ul>\n<li>. <strong>MCB samotn\u00fd<\/strong> v\u00e1s NEBUDE chr\u00e1nit p\u0159ed \u00farazem elektrick\u00fdm proudem, pokud se dotknete \u017eiv\u00e9 \u010d\u00e1sti, proto\u017ee proud prot\u00e9kaj\u00edc\u00ed va\u0161\u00edm t\u011blem (obvykle 50-100 mA pro smrteln\u00fd \u00faraz) je hluboko pod prahem vypnut\u00ed MCB (obvykle 6-32 A pro obytn\u00e9 obvody)<\/li>\n<li>. <strong>RCCB samotn\u00fd<\/strong> NEBUDE chr\u00e1nit va\u0161e veden\u00ed p\u0159ed p\u0159et\u00ed\u017een\u00edm nebo po\u0161kozen\u00edm zkratem, proto\u017ee reaguje pouze na nerovnov\u00e1hu proudu, nikoli na celkovou velikost proudu<\/li>\n<\/ul>\n<p>Podrobn\u00e9 vysv\u011btlen\u00ed, pro\u010d jisti\u010de samotn\u00e9 nezabr\u00e1n\u00ed \u00farazu elektrick\u00fdm proudem, si p\u0159e\u010dt\u011bte <a href=\"https:\/\/test.viox.com\/cs\/why-circuit-breakers-dont-protect-people\/\">pro\u010d jisti\u010de nechr\u00e1n\u00ed lidi<\/a>.<\/p>\n<h3>Rychl\u00e1 referen\u010dn\u00ed tabulka RCB vs MCB<\/h3>\n<table border=\"1\" style=\"border-collapse: collapse; width: 100%;\">\n<thead>\n<tr>\n<th style=\"padding: 8px; text-align: left;\">Typ za\u0159\u00edzen\u00ed<\/th>\n<th style=\"padding: 8px; text-align: left;\">Prim\u00e1rn\u00ed zam\u011b\u0159en\u00ed ochrany<\/th>\n<th style=\"padding: 8px; text-align: left;\">Co detekuje<\/th>\n<th style=\"padding: 8px; text-align: left;\">Typick\u00fd vyp\u00ednac\u00ed proud<\/th>\n<th style=\"padding: 8px; text-align: left;\">Doba odezvy<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><strong>RCB\/RCCB<\/strong><\/td>\n<td style=\"padding: 8px;\">Svodov\u00fd proud a \u00faraz elektrick\u00fdm proudem<\/td>\n<td style=\"padding: 8px;\">Nerovnov\u00e1ha proudu mezi \u017eiv\u00fdm a nulov\u00fdm vodi\u010dem<\/td>\n<td style=\"padding: 8px;\">10mA \u2013 300mA<\/td>\n<td style=\"padding: 8px;\">25-40 milisekund<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>MCB<\/strong><\/td>\n<td style=\"padding: 8px;\">P\u0159et\u00ed\u017een\u00ed a zkrat<\/td>\n<td style=\"padding: 8px;\">Celkov\u00e1 velikost proudu v obvodu<\/td>\n<td style=\"padding: 8px;\">6A \u2013 125A (obytn\u00e9\/lehk\u00e9 komer\u010dn\u00ed)<\/td>\n<td style=\"padding: 8px;\">Sekundy (p\u0159et\u00ed\u017een\u00ed) a\u017e milisekundy (zkrat)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Komplexn\u00ed pokyny, kdy pou\u017e\u00edt kter\u00fd typ za\u0159\u00edzen\u00ed, naleznete v <a href=\"https:\/\/test.viox.com\/cs\/why-use-rccb-instead-of-mcb\/\">pro\u010d pou\u017e\u00edvat RCCB m\u00edsto MCB<\/a>.<\/p>\n<h2>RCB vs RCCB vs RCBO: V\u00fdb\u011br spr\u00e1vn\u00e9ho za\u0159\u00edzen\u00ed<\/h2>\n<p>Pokud jste hledali <strong>RCB Pln\u00fd V\u00fdznam<\/strong>, pravd\u011bpodobn\u011b jste na za\u010d\u00e1tku sv\u00e9 cesty k pochopen\u00ed elektrick\u00e9 ochrany. Dal\u0161\u00edm kritick\u00fdm krokem je rozhodnut\u00ed, kter\u00fd konkr\u00e9tn\u00ed typ za\u0159\u00edzen\u00ed skute\u010dn\u011b pot\u0159ebujete pro svou aplikaci.<\/p>\n<h3>RCB \/ RCCB: Vyhrazen\u00e1 ochrana proti zbytkov\u00e9mu proudu<\/h3>\n<p>V praktick\u00fdch diskus\u00edch, kdy\u017e \u010dten\u00e1\u0159i hledaj\u00ed <strong>RCB Pln\u00fd V\u00fdznam<\/strong>, \u010dasto se ve skute\u010dnosti ptaj\u00ed na <strong>RCCB<\/strong> , proto\u017ee to je p\u0159esn\u00e9 ozna\u010den\u00ed produktu, se kter\u00fdm se setkaj\u00ed na:<\/p>\n<ul>\n<li>Datov\u00e9 listy a katalogy v\u00fdrobc\u016f<\/li>\n<li>Sch\u00e9mata a v\u00fdkresy elektrick\u00fdch panel\u016f<\/li>\n<li>Certifikace produkt\u016f (UL, CE, IEC)<\/li>\n<li>Nab\u00eddky a faktury dodavatel\u016f<\/li>\n<\/ul>\n<p>RCCB poskytuje pouze ochranu proti zbytkov\u00e9mu proudu. Mus\u00ed b\u00fdt instalov\u00e1n v s\u00e9rii s MCB nebo pojistkou, aby byla zaji\u0161t\u011bna kompletn\u00ed ochrana obvodu. Toto je tradi\u010dn\u00ed p\u0159\u00edstup pou\u017e\u00edvan\u00fd ve v\u011bt\u0161in\u011b obytn\u00fdch a komer\u010dn\u00edch instalac\u00ed.<\/p>\n<p><strong>Typick\u00e1 konfigurace instalace RCCB:<\/strong><\/p>\n<pre><code>Hlavn\u00ed nap\u00e1jen\u00ed \u2192 RCCB (nap\u0159. 40A, 30mA) \u2192 V\u00edce MCB \u2192 Jednotliv\u00e9 obvody<\/code><\/pre>\n<h3>RCBO: Kombinovan\u00e1 ochrana v jednom za\u0159\u00edzen\u00ed<\/h3>\n<p>. <strong>RCBO (Jisti\u010d zbytkov\u00e9ho proudu s nadproudovou ochranou)<\/strong> kombinuje ochranu proti zbytkov\u00e9mu proudu A nadproudovou ochranu (funkce MCB) v jednom kompaktn\u00edm za\u0159\u00edzen\u00ed. To znamen\u00e1, \u017ee pokr\u00fdv\u00e1:<\/p>\n<ul>\n<li>Ochrana proti zemn\u00edmu \u00faniku (jako RCCB)<\/li>\n<li>Ochrana proti p\u0159et\u00ed\u017een\u00ed (jako tepeln\u00fd prvek MCB)<\/li>\n<li>Ochrana proti zkratu (jako magnetick\u00fd prvek MCB)<\/li>\n<\/ul>\n<p><strong>Typick\u00e1 konfigurace instalace RCBO:<\/strong><\/p>\n<pre><code>Hlavn\u00ed nap\u00e1jen\u00ed \u2192 Jednotliv\u00e9 RCBO \u2192 Jednotliv\u00e9 obvody<\/code><\/pre>\n<p>Podrobn\u00e9 technick\u00e9 srovn\u00e1n\u00ed v\u010detn\u011b prostorov\u00fdch n\u00e1rok\u016f, anal\u00fdzy n\u00e1klad\u016f a hledisek selektivity viz <a href=\"https:\/\/test.viox.com\/cs\/rcbo-vs-rccb-mcb-comparison-space-cost-selectivity\/\">Srovn\u00e1n\u00ed RCBO vs RCCB a MCB<\/a>.<\/p>\n<h3>Srovn\u00e1n\u00ed za\u0159\u00edzen\u00ed: Pokryt\u00ed ochranou<\/h3>\n<table border=\"1\" style=\"border-collapse: collapse; width: 100%;\">\n<thead>\n<tr>\n<th style=\"padding: 8px; text-align: left;\">Term\u00edn za\u0159\u00edzen\u00ed<\/th>\n<th style=\"padding: 8px; text-align: left;\">Ochrana proti rezidu\u00e1ln\u00edmu proudu<\/th>\n<th style=\"padding: 8px; text-align: left;\">Ochrana proti p\u0159et\u00ed\u017een\u00ed<\/th>\n<th style=\"padding: 8px; text-align: left;\">Ochrana proti zkratu<\/th>\n<th style=\"padding: 8px; text-align: left;\">Typick\u00fd p\u0159\u00edpad pou\u017eit\u00ed<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><strong>RCB\/RCCB<\/strong><\/td>\n<td style=\"padding: 8px;\">\u2713 Ano<\/td>\n<td style=\"padding: 8px;\">\u2717 Ne<\/td>\n<td style=\"padding: 8px;\">\u2717 Ne<\/td>\n<td style=\"padding: 8px;\">Skupinov\u00e1 ochrana pro v\u00edce obvod\u016f \u2013 vy\u017eaduje samostatn\u00e9 MCB v dal\u0161\u00edm sm\u011bru<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>RCBO<\/strong><\/td>\n<td style=\"padding: 8px;\">\u2713 Ano<\/td>\n<td style=\"padding: 8px;\">\u2713 Ano<\/td>\n<td style=\"padding: 8px;\">\u2713 Ano<\/td>\n<td style=\"padding: 8px;\">Individu\u00e1ln\u00ed ochrana obvodu \u2013 komplexn\u00ed \u0159e\u0161en\u00ed, nen\u00ed pot\u0159eba samostatn\u00fd MCB<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>MCB<\/strong><\/td>\n<td style=\"padding: 8px;\">\u2717 Ne<\/td>\n<td style=\"padding: 8px;\">\u2713 Ano<\/td>\n<td style=\"padding: 8px;\">\u2713 Ano<\/td>\n<td style=\"padding: 8px;\">Pouze nadproudov\u00e1 ochrana \u2013 vy\u017eaduje samostatn\u00e9 RCCB v p\u0159ed\u0159azen\u00e9m sm\u011bru pro ochranu p\u0159ed \u00farazem elektrick\u00fdm proudem<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Kdy zvolit RCCB vs RCBO<\/h3>\n<p><strong>Zvolte konfiguraci RCCB + MCB, kdy\u017e:<\/strong><\/p>\n<ul>\n<li>Chr\u00e1n\u00edte v\u00edce obvod\u016f jedn\u00edm proudov\u00fdm chr\u00e1ni\u010dem (n\u00e1kladov\u011b efektivn\u00ed pro skupiny)<\/li>\n<li>Pracujete se st\u00e1vaj\u00edc\u00edmi instalacemi, kter\u00e9 ji\u017e maj\u00ed MCB<\/li>\n<li>Prostor v rozvad\u011b\u010di nen\u00ed siln\u011b omezen<\/li>\n<li>Chcete zjednodu\u0161en\u00e9 odstra\u0148ov\u00e1n\u00ed probl\u00e9m\u016f (vypnut\u00ed jednoho RCCB indikuje svod n\u011bkde ve skupin\u011b)<\/li>\n<\/ul>\n<p><strong>Zvolte konfiguraci RCBO, kdy\u017e:<\/strong><\/p>\n<ul>\n<li>Je vy\u017eadov\u00e1na individu\u00e1ln\u00ed ochrana obvodu (lep\u0161\u00ed selektivita \u2013 vypne se pouze vadn\u00fd obvod)<\/li>\n<li>Prostor v rozvad\u011b\u010di je omezen (RCBO jsou kompaktn\u011bj\u0161\u00ed ne\u017e kombinace RCCB + MCB)<\/li>\n<li>Chcete minimalizovat ru\u0161iv\u00e9 vyp\u00edn\u00e1n\u00ed (porucha na jednom obvodu neovlivn\u00ed ostatn\u00ed)<\/li>\n<li>K\u00f3d vy\u017eaduje vyhrazenou ochranu pro specifick\u00e9 obvody (nap\u0159., <a href=\"https:\/\/test.viox.com\/cs\/ev-charger-circuit-breaker-sizing-guide-7kw-22kw\/\">Obvody nab\u00edje\u010dky EV<\/a>)<\/li>\n<\/ul>\n<p>Praktick\u00e9 pokyny pro v\u00fdb\u011br viz <a href=\"https:\/\/test.viox.com\/cs\/how-to-select-the-right-rcbo\/\">jak vybrat spr\u00e1vn\u00fd RCBO<\/a>.<\/p>\n<h2>Kde jsou vy\u017eadov\u00e1na a pou\u017e\u00edv\u00e1na za\u0159\u00edzen\u00ed typu RCB?<\/h2>\n<p>Porozum\u011bn\u00ed <strong>RCB Pln\u00fd V\u00fdznam<\/strong> z\u00edsk\u00e1 v\u011bt\u0161\u00ed smysl, kdy\u017e v\u00edte, kde jsou tato za\u0159\u00edzen\u00ed zachra\u0148uj\u00edc\u00ed \u017eivoty skute\u010dn\u011b vy\u017eadov\u00e1na a instalov\u00e1na.<\/p>\n<figure>\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/Where-to-install-RCB-in-electrical-panel-residential-installation.webp\" alt=\"Where to install RCB in electrical panel residential installation\" style=\"max-width: 100%; display: block; margin: 0 auto;\"><figcaption><em>Podrobn\u00e9 sch\u00e9ma zapojen\u00ed, kter\u00e9 p\u0159esn\u011b ukazuje, kam instalovat RCB ve standardn\u00edm bytov\u00e9m elektrick\u00e9m rozvad\u011b\u010di.<\/em><\/figcaption><\/figure>\n<h3>M\u00edsta na\u0159\u00edzen\u00e1 k\u00f3dem (po\u017eadavky NEC a IEC)<\/h3>\n<p>Modern\u00ed elektrick\u00e9 k\u00f3dy st\u00e1le v\u00edce na\u0159izuj\u00ed ochranu proti zbytkov\u00e9mu proudu v oblastech s vysok\u00fdm rizikem:<\/p>\n<p><strong>Bytov\u00e9 instalace:<\/strong><\/p>\n<ul>\n<li>Koupelnov\u00e9 obvody (v\u0161echny z\u00e1suvky a osv\u011btlen\u00ed v bl\u00edzkosti zdroj\u016f vody)<\/li>\n<li>Kuchy\u0148sk\u00e9 z\u00e1suvky na pracovn\u00ed desce (do 6 stop od d\u0159ez\u016f)<\/li>\n<li>Venkovn\u00ed z\u00e1suvky a obvody osv\u011btlen\u00ed<\/li>\n<li>Z\u00e1suvky v gar\u00e1\u017ei a nedokon\u010den\u00e9m suter\u00e9nu<\/li>\n<li>Obvody pr\u00e1delny<\/li>\n<li>Vybaven\u00ed baz\u00e9n\u016f, v\u00ed\u0159ivek a hork\u00fdch van<\/li>\n<li><a href=\"https:\/\/test.viox.com\/cs\/commercial-vs-residential-ev-charging-protection-guide\/\">Nab\u00edjec\u00ed stanice pro elektromobily<\/a><\/li>\n<\/ul>\n<p><strong>Komer\u010dn\u00ed a pr\u016fmyslov\u00e9 instalace:<\/strong><\/p>\n<ul>\n<li>Z\u00e1suvky pro p\u0159enosn\u00e9 n\u00e1\u0159ad\u00ed a za\u0159\u00edzen\u00ed na staveni\u0161t\u00edch<\/li>\n<li>Venkovn\u00ed obvody a obvody ve vlhk\u00e9m prost\u0159ed\u00ed<\/li>\n<li>Zdravotnick\u00e1 za\u0159\u00edzen\u00ed (prostory pro p\u00e9\u010di o pacienty)<\/li>\n<li>Zem\u011bd\u011blsk\u00e9 budovy (prostory pro chov hospod\u00e1\u0159sk\u00fdch zv\u00ed\u0159at)<\/li>\n<li>P\u0159\u00edstavy a lodn\u00ed doky<\/li>\n<li>Do\u010dasn\u00e9 rozvody energie<\/li>\n<li><a href=\"https:\/\/test.viox.com\/cs\/pv-dc-protection-explained-mcbs-fuses-and-spds-vs-rcds\/\">Sol\u00e1rn\u00ed fotovoltaick\u00e9 syst\u00e9my<\/a> (kde je to relevantn\u00ed)<\/li>\n<\/ul>\n<p>Komplexn\u00ed po\u017eadavky k\u00f3du NEC viz <a href=\"https:\/\/test.viox.com\/cs\/nec-code-for-junction-boxes\/\">NEC norma pro spojovac\u00ed krabice<\/a> a souvisej\u00edc\u00ed po\u017eadavky na ochranu.<\/p>\n<h3>M\u00edsta instalace s vysokou prioritou<\/h3>\n<p>I kdy\u017e to nen\u00ed v\u00fdslovn\u011b na\u0159\u00edzeno, ochrana RCB\/RCCB se d\u016frazn\u011b doporu\u010duje pro:<\/p>\n<ul>\n<li><strong>V\u0161echny z\u00e1suvky<\/strong> v syst\u00e9mech uzemn\u011bn\u00ed TT (b\u011b\u017en\u00e9 ve venkovsk\u00fdch oblastech)<\/li>\n<li><strong>Obvody nap\u00e1jej\u00edc\u00ed za\u0159\u00edzen\u00ed t\u0159\u00eddy I<\/strong> (spot\u0159ebi\u010de s kovov\u00fdm pouzdrem s odkryt\u00fdmi vodiv\u00fdmi \u010d\u00e1stmi)<\/li>\n<li><strong>P\u0159enosn\u00e9 za\u0159\u00edzen\u00ed<\/strong> pou\u017e\u00edvan\u00e9 venku nebo ve vlhk\u00fdch m\u00edstech<\/li>\n<li><strong>Obvody ve star\u0161\u00edch budov\u00e1ch<\/strong> se st\u00e1rnouc\u00ed izolac\u00ed<\/li>\n<li><strong>Jak\u00fdkoli obvod, kde je po\u017eadov\u00e1na zv\u00fd\u0161en\u00e1 bezpe\u010dnost<\/strong><\/li>\n<\/ul>\n<h3>P\u0159\u00edklady aplikac\u00ed v re\u00e1ln\u00e9m sv\u011bt\u011b<\/h3>\n<p><strong>Bytov\u00fd p\u0159\u00edklad:<\/strong><br \/>\n    Typick\u00fd modern\u00ed d\u016fm m\u016f\u017ee m\u00edt:<\/p>\n<ul>\n<li>Jeden 40A\/30mA RCCB chr\u00e1n\u00edc\u00ed v\u0161echny obvody z\u00e1suvek (ob\u00fdvac\u00ed pokoje, lo\u017enice)<\/li>\n<li>Jeden 40A\/30mA RCCB chr\u00e1n\u00edc\u00ed obvody ve vlhk\u00fdch prostor\u00e1ch (koupelny, kuchyn\u011b, pr\u00e1delna)<\/li>\n<li>Jeden 63A\/100mA RCCB chr\u00e1n\u00edc\u00ed venkovn\u00ed a gar\u00e1\u017eov\u00e9 obvody<\/li>\n<li>Obvody osv\u011btlen\u00ed mohou b\u00fdt pouze na MCB (a\u010dkoli n\u011bkter\u00e9 k\u00f3dy nyn\u00ed vy\u017eaduj\u00ed ochranu RCD pro v\u0161echny obvody)<\/li>\n<\/ul>\n<p><strong>Komer\u010dn\u00ed p\u0159\u00edklad:<\/strong><br \/>\n    Kancel\u00e1\u0159sk\u00e1 budova m\u016f\u017ee pou\u017e\u00edvat:<\/p>\n<ul>\n<li>Individu\u00e1ln\u00ed RCBO 20A\/30mA pro ka\u017ed\u00fd z\u00e1suvkov\u00fd okruh v kancel\u00e1\u0159sk\u00e9 oblasti<\/li>\n<li>RCCB 30mA pro v\u0161echny z\u00e1suvky pro v\u0161eobecn\u00e9 pou\u017eit\u00ed<\/li>\n<li>RCCB 100mA nebo 300mA pro po\u017e\u00e1rn\u00ed signalizaci a nouzov\u00e9 osv\u011btlen\u00ed (pro zabr\u00e1n\u011bn\u00ed ru\u0161iv\u00e9mu vybavov\u00e1n\u00ed)<\/li>\n<\/ul>\n<p>Podrobn\u00e9 pokyny pro uspo\u0159\u00e1d\u00e1n\u00ed panelu a koordinaci ochrany naleznete v <a href=\"https:\/\/test.viox.com\/cs\/circuit-protection-selection-framework-a-5-step-guide-for-panel-builders-iec-60947\/\">r\u00e1mec pro v\u00fdb\u011br ochrany obvodu<\/a>.<\/p>\n<h2>Pro\u010d je ochrana pomoc\u00ed RCB d\u016fle\u017eit\u00e1: \u017divot zachra\u0148uj\u00edc\u00ed rozd\u00edl<\/h2>\n<p>B\u011b\u017en\u00fd nadproudov\u00fd jisti\u010d (MCB nebo MCCB) nedok\u00e1\u017ee detekovat ka\u017ed\u00fd nebezpe\u010dn\u00fd stav \u00faniku proudu. Proto z\u016fst\u00e1v\u00e1 ochrana proti rezidu\u00e1ln\u00edmu proudu kriticky d\u016fle\u017eit\u00e1 a je st\u00e1le v\u00edce vy\u017eadov\u00e1na bezpe\u010dnostn\u00edmi p\u0159edpisy pro elektrick\u00e1 za\u0159\u00edzen\u00ed po cel\u00e9m sv\u011bt\u011b.<\/p>\n<h3>Riziko \u00farazu elektrick\u00fdm proudem bez ochrany RCB<\/h3>\n<p>Zva\u017ete tento sc\u00e9n\u00e1\u0159: Pou\u017e\u00edv\u00e1te elektrick\u00e9 n\u00e1\u0159ad\u00ed s po\u0161kozenou izolac\u00ed. Kovov\u00e9 pouzdro se stane \u017eiv\u00fdm p\u0159i 230 V, ale poruchov\u00fd proud tekouc\u00ed do zem\u011b ochrann\u00fdm zemnic\u00edm vodi\u010dem n\u00e1\u0159ad\u00ed je pouze 200 mA \u2013 hluboko pod prahem vybaven\u00ed 16A MCB. MCB to pova\u017euje za norm\u00e1ln\u00ed provoz a nevybav\u00ed.<\/p>\n<p>Nyn\u00ed se dotknete kovov\u00e9ho pouzdra. Proud prot\u00e9k\u00e1 va\u0161\u00edm t\u011blem do zem\u011b. Ji\u017e 30 mA p\u0159es srdce m\u016f\u017ee zp\u016fsobit fibrilaci komor a smrt. MCB st\u00e1le nevybav\u00ed, proto\u017ee 30 mA je ve srovn\u00e1n\u00ed s jeho jmenovit\u00fdm proudem 16 A zanedbateln\u00e9.<\/p>\n<p><strong>S RCB\/RCCB (citlivost 30 mA):<\/strong><br \/>\n    V okam\u017eiku, kdy dojde k poru\u0161e (je\u0161t\u011b ne\u017e se dotknete n\u00e1\u0159ad\u00ed), RCCB detekuje \u00fanik 200 mA a vybav\u00ed do 40 milisekund, \u010d\u00edm\u017e odpoj\u00ed obvod a zcela zabr\u00e1n\u00ed sc\u00e9n\u00e1\u0159i \u00farazu elektrick\u00fdm proudem.<\/p>\n<p>Proto <a href=\"https:\/\/test.viox.com\/cs\/why-circuit-breakers-dont-protect-people\/\">samotn\u00e9 jisti\u010de nechr\u00e1n\u00ed lidi<\/a> a pro\u010d jsou za\u0159\u00edzen\u00ed typu RCB nezbytn\u00e1 pro ochranu p\u0159ed \u00farazem elektrick\u00fdm proudem.<\/p>\n<h3>Prevence po\u017e\u00e1ru prost\u0159ednictv\u00edm detekce zemn\u00edho spojen\u00ed<\/h3>\n<p>Trval\u00e9 zemn\u00ed svodov\u00e9 proudy, dokonce i tak n\u00edzk\u00e9 jako 300-500 mA, mohou generovat dostate\u010dn\u00e9 teplo ve \u0161patn\u00fdch spojen\u00edch nebo prost\u0159ednictv\u00edm karbonizovan\u00fdch izola\u010dn\u00edch cest k zap\u00e1len\u00ed okoln\u00edch ho\u0159lav\u00fdch materi\u00e1l\u016f. Tradi\u010dn\u00ed nadproudov\u00e1 za\u0159\u00edzen\u00ed tyto poruchov\u00e9 proudy nedetekuj\u00ed, proto\u017ee jsou pod prahem p\u0159et\u00ed\u017een\u00ed.<\/p>\n<p>Za\u0159\u00edzen\u00ed RCB\/RCCB s jmenovit\u00fdm proudem 100 mA nebo 300 mA poskytuj\u00ed protipo\u017e\u00e1rn\u00ed ochranu detekc\u00ed t\u011bchto nebezpe\u010dn\u00fdch svodov\u00fdch proud\u016f d\u0159\u00edve, ne\u017e mohou zp\u016fsobit vzn\u00edcen\u00ed. To je zvl\u00e1\u0161t\u011b d\u016fle\u017eit\u00e9 v:<\/p>\n<ul>\n<li>Star\u0161\u00edch budov\u00e1ch se zhor\u0161uj\u00edc\u00ed se izolac\u00ed kabel\u016f<\/li>\n<li>Zem\u011bd\u011blsk\u00fdch budov\u00e1ch s po\u0161kozen\u00edm kabel\u016f hlodavci<\/li>\n<li>Venkovn\u00edch instalac\u00edch vystaven\u00fdch vlhkosti a UV degradaci<\/li>\n<li>Pr\u016fmyslov\u00fdch prost\u0159ed\u00edch s drsn\u00fdmi podm\u00ednkami<\/li>\n<\/ul>\n<p>Souvisej\u00edc\u00ed strategie protipo\u017e\u00e1rn\u00ed ochrany naleznete v <a href=\"https:\/\/test.viox.com\/cs\/electrical-cabinet-fire-protection-causes-prevention-guide\/\">pr\u016fvodci protipo\u017e\u00e1rn\u00ed ochranou elektrick\u00fdch rozvad\u011b\u010d\u016f<\/a>.<\/p>\n<h2>B\u011b\u017en\u00e9 probl\u00e9my s vybavov\u00e1n\u00edm RCB a \u0159e\u0161en\u00ed<\/h2>\n<p>Porozum\u011bn\u00ed <strong>RCB Pln\u00fd V\u00fdznam<\/strong> tak\u00e9 znamen\u00e1 v\u011bd\u011bt, jak \u0159e\u0161it b\u011b\u017en\u00e9 probl\u00e9my se za\u0159\u00edzen\u00edmi na ochranu proti rezidu\u00e1ln\u00edmu proudu:<\/p>\n<table border=\"1\" style=\"border-collapse: collapse; width: 100%;\">\n<thead>\n<tr>\n<th style=\"padding: 8px; text-align: left;\">Probl\u00e9m<\/th>\n<th style=\"padding: 8px; text-align: left;\">Mo\u017en\u00e1 p\u0159\u00ed\u010dina<\/th>\n<th style=\"padding: 8px; text-align: left;\">\u0158e\u0161en\u00ed<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u010cast\u00e9 obt\u011b\u017euj\u00edc\u00ed zakop\u00e1v\u00e1n\u00ed<\/strong><\/td>\n<td style=\"padding: 8px;\">Akumulovan\u00fd \u00fanik z v\u00edce spot\u0159ebi\u010d\u016f; p\u0159\u00edli\u0161 vysok\u00e1 citlivost pro d\u00e9lku obvodu<\/td>\n<td style=\"padding: 8px;\">Pou\u017eijte vy\u0161\u0161\u00ed jmenovitou citlivost (nap\u0159. 100 mA m\u00edsto 30 mA) pro dlouh\u00e9 obvody; rozd\u011blte obvody, abyste sn\u00ed\u017eili kumulativn\u00ed \u00fanik; zkontrolujte vniknut\u00ed vlhkosti<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Nelze resetovat po vybaven\u00ed<\/strong><\/td>\n<td style=\"padding: 8px;\">Trval\u00e9 zemn\u00ed spojen\u00ed v p\u0159ipojen\u00e9m za\u0159\u00edzen\u00ed nebo kabel\u00e1\u017ei<\/td>\n<td style=\"padding: 8px;\">Odpojte z\u00e1t\u011b\u017ee jednu po druh\u00e9, abyste identifikovali vadn\u00e9 za\u0159\u00edzen\u00ed; pou\u017eijte tester izola\u010dn\u00edho odporu ke kontrole kabel\u00e1\u017ee<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Nevybav\u00ed p\u0159i stisknut\u00ed testovac\u00edho tla\u010d\u00edtka<\/strong><\/td>\n<td style=\"padding: 8px;\">Selh\u00e1n\u00ed za\u0159\u00edzen\u00ed; mechanick\u00e9 zablokov\u00e1n\u00ed; ztr\u00e1ta nap\u011bt\u00ed pru\u017einy<\/td>\n<td style=\"padding: 8px;\">Okam\u017eit\u011b vym\u011b\u0148te \u2013 za\u0159\u00edzen\u00ed neposkytuje ochranu; nikdy se nespol\u00e9hejte na vadn\u00fd RCD<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Vybav\u00ed okam\u017eit\u011b po zapnut\u00ed<\/strong><\/td>\n<td style=\"padding: 8px;\">Vysok\u00fd zap\u00ednac\u00ed proud z kapacitn\u00edch z\u00e1t\u011b\u017e\u00ed; N-E porucha za za\u0159\u00edzen\u00edm<\/td>\n<td style=\"padding: 8px;\">Zkontrolujte poruchy mezi nulou a zem\u00ed; pou\u017eijte \u010dasov\u011b zpo\u017ed\u011bn\u00fd nebo typ B RCD pro obvody s pohony s prom\u011bnn\u00fdmi ot\u00e1\u010dkami nebo elektronick\u00fdmi z\u00e1t\u011b\u017eemi<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>N\u00e1hodn\u00e9 vybavov\u00e1n\u00ed b\u011bhem bou\u0159ek<\/strong><\/td>\n<td style=\"padding: 8px;\">Proudov\u00e9 r\u00e1zy z bl\u00edzk\u00fdch \u00fader\u016f blesku<\/td>\n<td style=\"padding: 8px;\">Instalace <a href=\"https:\/\/test.viox.com\/cs\/what-is-a-surge-protection-device\/\">p\u0159ep\u011b\u0165ov\u00e9 ochrany (SPD)<\/a> p\u0159ed RCCB; zajist\u011bte \u0159\u00e1dn\u00e9 uzemn\u011bn\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Podrobn\u00e9 postupy pro odstra\u0148ov\u00e1n\u00ed probl\u00e9m\u016f naleznete v <a href=\"https:\/\/test.viox.com\/cs\/how-to-check-rccb-functionality-maintenance-guide\/\">jak zkontrolovat funk\u010dnost RCCB<\/a>.<\/p>\n<h2>Jak vybrat spr\u00e1vn\u00e9 za\u0159\u00edzen\u00ed po sezn\u00e1men\u00ed se s pln\u00fdm tvarem RCB<\/h2>\n<p>Pokud jste za\u010dali ot\u00e1zkou \u201cco je <strong>RCB Pln\u00fd V\u00fdznam<\/strong>?\u201d, jste nyn\u00ed vybaveni k informovan\u00fdm rozhodnut\u00edm. U\u017eite\u010dn\u00fdm dal\u0161\u00edm krokem je v\u0161ak ur\u010den\u00ed, kter\u00e9 konkr\u00e9tn\u00ed jm\u00e9no za\u0159\u00edzen\u00ed nebo produkt skute\u010dn\u011b pot\u0159ebujete pro svou aplikaci.<\/p>\n<h3>Rozhodovac\u00ed matice pro v\u00fdb\u011br<\/h3>\n<table border=\"1\" style=\"border-collapse: collapse; width: 100%;\">\n<thead>\n<tr>\n<th style=\"padding: 8px; text-align: left;\">Pokud je va\u0161e skute\u010dn\u00e1 pot\u0159eba\u2026<\/th>\n<th style=\"padding: 8px; text-align: left;\">M\u011bli byste specifikovat\u2026<\/th>\n<th style=\"padding: 8px; text-align: left;\">Kl\u00ed\u010dov\u00e9 \u00davahy<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><strong>Porozum\u011bn\u00ed pouze zkratce<\/strong><\/td>\n<td style=\"padding: 8px;\">Pln\u00fd tvar RCB \/ vysv\u011btlen\u00ed rodiny RCD<\/td>\n<td style=\"padding: 8px;\">Vzd\u011bl\u00e1vac\u00ed \u00fa\u010del \u2013 nen\u00ed pot\u0159eba n\u00e1kup<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Pouze ochrana proti svodu<\/strong> (s existuj\u00edc\u00edmi MCB)<\/td>\n<td style=\"padding: 8px;\">RCCB (specifick\u00e1 citlivost: 30 mA, 100 mA atd.)<\/td>\n<td style=\"padding: 8px;\">Nejefektivn\u011bj\u0161\u00ed z hlediska n\u00e1klad\u016f pro ochranu v\u00edce obvod\u016f; vy\u017eaduje samostatn\u00e9 MCB<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>\u00danik PLUS ochrana proti p\u0159et\u00ed\u017een\u00ed<\/strong> v jednom za\u0159\u00edzen\u00ed<\/td>\n<td style=\"padding: 8px;\">RCBO (specifikujte jmenovit\u00e9 hodnoty In i I\u0394n)<\/td>\n<td style=\"padding: 8px;\">Prostorov\u011b \u00fasporn\u00e9; lep\u0161\u00ed selektivita; vy\u0161\u0161\u00ed n\u00e1klady na obvod<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Pouze ochrana proti p\u0159et\u00ed\u017een\u00ed nebo zkratu<\/strong><\/td>\n<td style=\"padding: 8px;\">MCB (bez ochrany proti rezidu\u00e1ln\u00edmu proudu)<\/td>\n<td style=\"padding: 8px;\">NEPOSKYTUJE ochranu p\u0159ed \u00farazem elektrick\u00fdm proudem \u2013 mus\u00ed b\u00fdt kombinov\u00e1n s RCCB p\u0159ed\u0159azen\u00fdm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>P\u0159enosn\u00e1 ochrana p\u0159ed \u00farazem elektrick\u00fdm proudem<\/strong><\/td>\n<td style=\"padding: 8px;\">P\u0159enosn\u00fd adapt\u00e9r RCD \/ GFCI<\/td>\n<td style=\"padding: 8px;\">Do\u010dasn\u00e1 ochrana pro elektrick\u00e9 n\u00e1\u0159ad\u00ed a za\u0159\u00edzen\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Kritick\u00e9 parametry v\u00fdb\u011bru<\/h3>\n<p>P\u0159i specifikaci RCB\/RCCB\/RCBO mus\u00edte definovat:<\/p>\n<ol>\n<li><strong>Jmenovit\u00fd rezidu\u00e1ln\u00ed provozn\u00ed proud (I\u0394n):<\/strong> 10 mA, 30 mA, 100 mA, 300 mA\n<ul>\n<li>10 mA: Zv\u00fd\u0161en\u00e1 ochrana (l\u00e9ka\u0159sk\u00e9, speci\u00e1ln\u00ed aplikace)<\/li>\n<li>30 mA: Standardn\u00ed ochrana osob (vy\u017eadov\u00e1na pro z\u00e1suvky)<\/li>\n<li>100 mA: Protipo\u017e\u00e1rn\u00ed ochrana \/ sn\u00ed\u017een\u00e9 ru\u0161iv\u00e9 vybavov\u00e1n\u00ed<\/li>\n<li>300mA: Pouze ochrana proti po\u017e\u00e1ru (nikoli pro ochranu p\u0159ed \u00farazem elektrick\u00fdm proudem)<\/li>\n<\/ul>\n<\/li>\n<li><strong>Jmenovit\u00fd proud (In):<\/strong> Mus\u00ed p\u0159ekro\u010dit maxim\u00e1ln\u00ed o\u010dek\u00e1van\u00fd proud z\u00e1t\u011b\u017ee\n<ul>\n<li>B\u011b\u017en\u00e9 hodnoty: 25A, 40A, 63A, 80A, 100A<\/li>\n<\/ul>\n<\/li>\n<li><strong>Typ (citlivost na pr\u016fb\u011bh):<\/strong>\n<ul>\n<li>Typ AC: Detekuje pouze st\u0159\u00eddav\u00e9 sinusov\u00e9 rezidu\u00e1ln\u00ed proudy (postupn\u011b se vy\u0159azuje)<\/li>\n<li>Typ A: Detekuje st\u0159\u00eddav\u00e9 + pulzuj\u00edc\u00ed stejnosm\u011brn\u00e9 rezidu\u00e1ln\u00ed proudy (minimum pro modern\u00ed spot\u0159ebi\u010de)<\/li>\n<li>Typ B: Detekuje st\u0159\u00eddav\u00e9 + pulzuj\u00edc\u00ed stejnosm\u011brn\u00e9 + hladk\u00e9 stejnosm\u011brn\u00e9 proudy (vy\u017eadov\u00e1no pro <a href=\"https:\/\/test.viox.com\/cs\/rccb-ev-charging-type-b-vs-type-f-vs-type-ev\/\">EV nab\u00edje\u010dky<\/a>, VFD, sol\u00e1rn\u00ed invertory)<\/li>\n<li>Typ F: Vylep\u0161en\u00fd typ A s odolnost\u00ed v\u016f\u010di vysokofrekven\u010dn\u00edm slo\u017ek\u00e1m<\/li>\n<\/ul>\n<\/li>\n<li><strong>Po\u010det p\u00f3l\u016f:<\/strong> 2-p\u00f3lov\u00fd (1P+N) pro jednof\u00e1zov\u00e9, 4-p\u00f3lov\u00fd (3P+N) pro t\u0159\u00edf\u00e1zov\u00e9<\/li>\n<\/ol>\n<p>Pro komplexn\u00ed pokyny k v\u00fdb\u011bru viz <a href=\"https:\/\/test.viox.com\/cs\/how-to-choose-the-right-rccb-sensitivity\/\">jak vybrat spr\u00e1vnou citlivost RCCB<\/a>.<\/p>\n<h2>Instalace a \u00dadr\u017eba Osv\u011bd\u010den\u00fdch Postup\u016f<\/h2>\n<p>Porozum\u011bn\u00ed <strong>RCB Pln\u00fd V\u00fdznam<\/strong> je ne\u00fapln\u00e9 bez znalosti spr\u00e1vn\u00fdch postup\u016f instalace a \u00fadr\u017eby:<\/p>\n<h3>Pokyny pro instalaci<\/h3>\n<ul>\n<li>Instalujte proudov\u00e9 chr\u00e1ni\u010de na stran\u011b z\u00e1t\u011b\u017ee hlavn\u00edho odpojova\u010de, ale p\u0159ed jisti\u010de obvod\u016f<\/li>\n<li>Zajist\u011bte spr\u00e1vn\u00e9 odd\u011blen\u00ed nulov\u00e9ho vodi\u010de od zemnic\u00edho vodi\u010de za proudov\u00fdm chr\u00e1ni\u010dem (\u017e\u00e1dn\u00e9 propojen\u00ed N-PE)<\/li>\n<li>Ov\u011b\u0159te spr\u00e1vn\u00e9 p\u0159ipojen\u00ed f\u00e1zov\u00e9ho a nulov\u00e9ho vodi\u010de (obr\u00e1cen\u00e9 p\u0159ipojen\u00ed m\u016f\u017ee zp\u016fsobit poruchu)<\/li>\n<li>Dodr\u017eujte dostate\u010dn\u00e9 vzd\u00e1lenosti podle <a href=\"https:\/\/test.viox.com\/cs\/nec-110-26-forbidden-rectangle-panel-clearance\/\">NEC 110.26<\/a> po\u017eadavky<\/li>\n<li>Obvody jasn\u011b ozna\u010dte, abyste usnadnili odstra\u0148ov\u00e1n\u00ed probl\u00e9m\u016f<\/li>\n<li>P\u0159ed zapnut\u00edm z\u00e1t\u011b\u017ee otestujte funkci pomoc\u00ed vestav\u011bn\u00e9ho testovac\u00edho tla\u010d\u00edtka<\/li>\n<\/ul>\n<p>Podrobn\u00e9 pokyny k instalaci panelu naleznete v <a href=\"https:\/\/test.viox.com\/cs\/how-to-ground-an-electrical-panel\/\">jak uzemnit elektrick\u00fd panel<\/a>.<\/p>\n<h3>Pl\u00e1n \u00fadr\u017eby a testov\u00e1n\u00ed<\/h3>\n<table border=\"1\" style=\"border-collapse: collapse; width: 100%;\">\n<thead>\n<tr>\n<th style=\"padding: 8px; text-align: left;\">Test\/Kontrola<\/th>\n<th style=\"padding: 8px; text-align: left;\">Frekvence<\/th>\n<th style=\"padding: 8px; text-align: left;\">Postup<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\"><strong>Provoz testovac\u00edho tla\u010d\u00edtka<\/strong><\/td>\n<td style=\"padding: 8px;\">M\u011bs\u00ed\u010dn\u011b (reziden\u010dn\u00ed), T\u00fddn\u011b (komer\u010dn\u00ed\/pr\u016fmyslov\u00e9)<\/td>\n<td style=\"padding: 8px;\">Stiskn\u011bte testovac\u00ed tla\u010d\u00edtko \u2013 za\u0159\u00edzen\u00ed by m\u011blo okam\u017eit\u011b vypnout; resetujte a ov\u011b\u0159te norm\u00e1ln\u00ed provoz<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Testov\u00e1n\u00ed izola\u010dn\u00edho odporu<\/strong><\/td>\n<td style=\"padding: 8px;\">Ro\u010dn\u011b nebo po jak\u00e9koli elektroinstala\u010dn\u00ed pr\u00e1ci<\/td>\n<td style=\"padding: 8px;\">Odpojte z\u00e1t\u011b\u017ee; zm\u011b\u0159te izola\u010dn\u00ed odpor chr\u00e1n\u011bn\u00fdch obvod\u016f; m\u011bl by p\u0159ekro\u010dit 1M\u03a9<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Ov\u011b\u0159en\u00ed doby j\u00edzdy<\/strong><\/td>\n<td style=\"padding: 8px;\">Ka\u017ed\u00e9 2-3 roky nebo podle doporu\u010den\u00ed v\u00fdrobce<\/td>\n<td style=\"padding: 8px;\">Pou\u017eijte tester RCD k ov\u011b\u0159en\u00ed doby vypnut\u00ed p\u0159i 1\u00d7 I\u0394n (m\u011bla by b\u00fdt &lt;300 ms) a 5\u00d7 I\u0394n (m\u011bla by b\u00fdt &lt;40 ms)<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\"><strong>Vizu\u00e1ln\u00ed kontrola<\/strong><\/td>\n<td style=\"padding: 8px;\">Ka\u017edoro\u010dn\u011b<\/td>\n<td style=\"padding: 8px;\">Zkontrolujte zn\u00e1mky p\u0159eh\u0159\u00e1t\u00ed, po\u0161kozen\u00ed, koroze; ov\u011b\u0159te pevn\u00e9 spoje; zkontrolujte vniknut\u00ed vlhkosti<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Podrobn\u00e9 postupy \u00fadr\u017eby naleznete v <a href=\"https:\/\/test.viox.com\/cs\/how-to-check-rccb-functionality-maintenance-guide\/\">jak zkontrolovat funk\u010dnost proudov\u00e9ho chr\u00e1ni\u010de - pr\u016fvodce \u00fadr\u017ebou<\/a>.<\/p>\n<h2>Pochopen\u00ed souvisej\u00edc\u00edch za\u0159\u00edzen\u00ed pro elektrickou ochranu<\/h2>\n<p>Nyn\u00ed, kdy\u017e rozum\u00edte <strong>RCB Pln\u00fd V\u00fdznam<\/strong>, je u\u017eite\u010dn\u00e9 vid\u011bt, jak ochrana proti rezidu\u00e1ln\u00edmu proudu zapad\u00e1 do \u0161ir\u0161\u00edho ekosyst\u00e9mu elektrick\u00e9 bezpe\u010dnosti:<\/p>\n<h3>Kompletn\u00ed rodina ochrann\u00fdch za\u0159\u00edzen\u00ed<\/h3>\n<ul>\n<li><a href=\"https:\/\/test.viox.com\/cs\/mcb-full-form-in-electrical\/\"><strong>MCB (miniaturn\u00ed jisti\u010d)<\/strong><\/a> \u2013 Nadproudov\u00e1 ochrana pro obvody do 125A<\/li>\n<li><a href=\"https:\/\/test.viox.com\/cs\/mccb-full-form-molded-case-circuit-breaker\/\"><strong>MCCB (jisti\u010d v lisovan\u00e9m pouzd\u0159e)<\/strong><\/a> \u2013 Nadproudov\u00e1 ochrana pro obvody 100A-1600A<\/li>\n<li><a href=\"https:\/\/test.viox.com\/cs\/rccb-full-form-understanding-residual-current-circuit-breakers\/\"><strong>RCCB (zbytkov\u00fd proudov\u00fd chr\u00e1ni\u010d)<\/strong><\/a> \u2013 Pouze ochrana proti zemn\u00edmu \u00faniku<\/li>\n<li><a href=\"https:\/\/test.viox.com\/cs\/rcbo-vs-rccb-mcb-comparison-space-cost-selectivity\/\"><strong>RCBO<\/strong><\/a> \u2013 Kombinovan\u00e1 ochrana proti rezidu\u00e1ln\u00edmu proudu a nadproudu<\/li>\n<li><a href=\"https:\/\/test.viox.com\/cs\/gfci-vs-afci\/\"><strong>AFCI (obloukov\u00fd p\u0159eru\u0161ova\u010d)<\/strong><\/a> \u2013 Detekuje nebezpe\u010dn\u00e9 obloukov\u00e9 stavy<\/li>\n<li><a href=\"https:\/\/test.viox.com\/cs\/understanding-afdd-iec-62606-arc-fault-protection\/\"><strong>AFDD (Za\u0159\u00edzen\u00ed pro detekci obloukov\u00e9ho zkratu)<\/strong><\/a> \u2013 IEC ekvivalent AFCI<\/li>\n<li><a href=\"https:\/\/test.viox.com\/cs\/what-is-a-surge-protection-device\/\"><strong>SPD (P\u0159ep\u011b\u0165ov\u00e1 ochrana)<\/strong><\/a> \u2013 Chr\u00e1n\u00ed p\u0159ed nap\u011b\u0165ov\u00fdmi \u0161pi\u010dkami a bleskov\u00fdmi p\u0159ep\u011bt\u00edmi<\/li>\n<\/ul>\n<p>Pro komplexn\u00ed srovn\u00e1n\u00ed v\u0161ech t\u011bchto za\u0159\u00edzen\u00ed viz <a href=\"https:\/\/test.viox.com\/cs\/what-is-the-difference-between-mcb-mccb-rcb-rcd-rccb-and-rcbo\/\">rozd\u00edl mezi MCB, MCCB, RCB, RCD, RCCB a RCBO<\/a>.<\/p>\n<h3>Strategie koordinace ochrany<\/h3>\n<p>Spr\u00e1vn\u011b navr\u017een\u00e1 elektroinstalace vyu\u017e\u00edv\u00e1 v\u00edce vrstev ochrany:<\/p>\n<ol>\n<li><strong>Ochrana proti p\u0159ep\u011bt\u00ed<\/strong> \u2013 SPD na vstupu a citliv\u00e9m za\u0159\u00edzen\u00ed<\/li>\n<li><strong>Nadproudov\u00e1 ochrana<\/strong> \u2013 MCB nebo MCCB pro v\u0161echny obvody<\/li>\n<li><strong>Ochrana proti zbytkov\u00e9mu proudu<\/strong> \u2013 RCCB nebo RCBO pro ochranu p\u0159ed \u00farazem elektrick\u00fdm proudem a po\u017e\u00e1rem<\/li>\n<li><strong>Ochrana proti obloukov\u00e9mu zkratu<\/strong> \u2013 AFCI\/AFDD tam, kde to vy\u017eaduje norma<\/li>\n<li><strong>Ochrana za\u0159\u00edzen\u00ed<\/strong> \u2013 Jisti\u010de motor\u016f, tepeln\u00e1 nadproudov\u00e1 rel\u00e9<\/li>\n<\/ol>\n<p>Podrobn\u00e9 strategie koordinace naleznete v <a href=\"https:\/\/test.viox.com\/cs\/circuit-protection-selection-framework-a-5-step-guide-for-panel-builders-iec-60947\/\">r\u00e1mec pro v\u00fdb\u011br ochrany obvodu<\/a>.<\/p>\n<h2>Normy a certifikace pro za\u0159\u00edzen\u00ed RCB\/RCCB<\/h2>\n<p>P\u0159i specifikaci nebo n\u00e1kupu za\u0159\u00edzen\u00ed na z\u00e1klad\u011b va\u0161eho porozum\u011bn\u00ed <strong>RCB Pln\u00fd V\u00fdznam<\/strong>, zajist\u011bte, aby spl\u0148ovaly p\u0159\u00edslu\u0161n\u00e9 normy:<\/p>\n<h3>Mezin\u00e1rodn\u00ed standardy<\/h3>\n<ul>\n<li><strong>IEC 61008-1<\/strong> \u2013 Proudov\u00e9 chr\u00e1ni\u010de bez vestav\u011bn\u00e9 nadproudov\u00e9 ochrany (RCCB)<\/li>\n<li><strong>IEC 61009-1<\/strong> \u2013 Proudov\u00e9 chr\u00e1ni\u010de s vestav\u011bnou nadproudovou ochranou (RCBO)<\/li>\n<li><strong>IEC 60755<\/strong> \u2013 Obecn\u00e9 po\u017eadavky na proudov\u00e9 chr\u00e1ni\u010de<\/li>\n<li><strong>IEC 62606<\/strong> \u2013 Obecn\u00e9 po\u017eadavky na za\u0159\u00edzen\u00ed pro detekci obloukov\u00e9ho zkratu (AFDD)<\/li>\n<\/ul>\n<p>Podrobn\u00e9 po\u017eadavky norem naleznete v <a href=\"https:\/\/test.viox.com\/cs\/iec-61008-1-standard-rccb-requirements-explained\/\">Norma IEC 61008-1 - vysv\u011btlen\u00e9 po\u017eadavky na RCCB<\/a>.<\/p>\n<h3>Severoamerick\u00e9 standardy<\/h3>\n<ul>\n<li><strong>UL 943<\/strong> \u2013 P\u0159eru\u0161ova\u010de obvodu zemn\u00edho spojen\u00ed (GFCI)<\/li>\n<li><strong>UL 1053<\/strong> \u2013 Za\u0159\u00edzen\u00ed pro sn\u00edm\u00e1n\u00ed a rel\u00e9ov\u00e1n\u00ed zemn\u00edch poruch<\/li>\n<li><strong>NFPA 70 (NEC)<\/strong> \u2013 Po\u017eadavky National Electrical Code na ochranu GFCI<\/li>\n<\/ul>\n<p>Pro terminologickou korespondenci mezi syst\u00e9my viz <a href=\"https:\/\/test.viox.com\/cs\/nec-vs-iec-terminology-correspondence\/\">Korespondence terminologie NEC vs IEC<\/a>.<\/p>\n<h3>Region\u00e1ln\u00ed variace<\/h3>\n<ul>\n<li><strong>GFCI (p\u0159eru\u0161ova\u010d zemn\u00edho spojen\u00ed)<\/strong> \u2013 Severoamerick\u00fd term\u00edn, v podstat\u011b ekvivalentn\u00ed RCD\/RCCB<\/li>\n<li><strong>RCD (rezidu\u00e1ln\u00ed proudov\u00fd chr\u00e1ni\u010d)<\/strong> \u2013 Velk\u00e1 Brit\u00e1nie, Austr\u00e1lie, zem\u011b IEC<\/li>\n<li><strong>RCCB\/RCBO<\/strong> \u2013 P\u0159esn\u00e9 ozna\u010den\u00ed produkt\u016f IEC<\/li>\n<li><strong>Jisti\u010d zemn\u00edho svodu (ELCB)<\/strong> \u2013 Star\u0161\u00ed term\u00edn, z velk\u00e9 \u010d\u00e1sti zastaral\u00fd<\/li>\n<\/ul>\n<p>Pro podrobn\u00e9 srovn\u00e1n\u00ed viz <a href=\"https:\/\/test.viox.com\/cs\/rcd-vs-gfci-breaker-difference-iec-nec\/\">Rozd\u00edl mezi RCD a GFCI jisti\u010dem<\/a> a <a href=\"https:\/\/test.viox.com\/cs\/what-is-the-difference-between-rccb-and-elcb\/\">Rozd\u00edl mezi RCCB a ELCB<\/a>.<\/p>\n<h2>\u010casto kladen\u00e9 ot\u00e1zky o pln\u00e9m tvaru RCB<\/h2>\n<h3>Co je pln\u00fd tvar RCB?<\/h3>\n<p>Na str\u00e1nk\u00e1ch <strong>RCB Pln\u00fd V\u00fdznam<\/strong> je <strong>Proudov\u00fd chr\u00e1ni\u010d<\/strong>. Je to elektrick\u00e9 bezpe\u010dnostn\u00ed za\u0159\u00edzen\u00ed ur\u010den\u00e9 k ochran\u011b p\u0159ed \u00farazem elektrick\u00fdm proudem a elektrick\u00fdmi po\u017e\u00e1ry detekc\u00ed svodov\u00e9ho proudu (rezidu\u00e1ln\u00edho proudu) a odpojen\u00edm obvodu, kdy\u017e jsou detekov\u00e1ny nebezpe\u010dn\u00e9 \u00farovn\u011b.<\/p>\n<h3>Co znamen\u00e1 pln\u00fd tvar RCB v elektrotechnice?<\/h3>\n<p>V elektrick\u00fdch syst\u00e9mech, <strong>RCB Pln\u00fd V\u00fdznam v Elektrotechnice<\/strong> znamen\u00e1 <strong>Proudov\u00fd chr\u00e1ni\u010d<\/strong>\u2014term\u00edn za\u0159\u00edzen\u00ed spojen\u00fd s ochranou proti rezidu\u00e1ln\u00edmu proudu nebo zemn\u00edmu svodu. Monitoruje rovnov\u00e1hu mezi odchoz\u00edm a zp\u011btn\u00fdm proudem a vyp\u00edn\u00e1, kdy\u017e nerovnov\u00e1ha indikuje potenci\u00e1ln\u011b nebezpe\u010dn\u00fd stav svodu.<\/p>\n<h3>Je RCB tot\u00e9\u017e co RCCB?<\/h3>\n<p>Ne v\u017edy ve striktn\u00ed terminologii. V b\u011b\u017en\u00e9m pou\u017e\u00edv\u00e1n\u00ed n\u011bkte\u0159\u00ed lid\u00e9 pou\u017e\u00edvaj\u00ed RCB voln\u011b jako obecn\u00fd term\u00edn, ale <strong>RCCB (zbytkov\u00fd proudov\u00fd chr\u00e1ni\u010d)<\/strong> je p\u0159esn\u011bj\u0161\u00ed term\u00edn produktu v modern\u00edch kataloz\u00edch, technick\u00fdch specifikac\u00edch a norm\u00e1ch IEC. P\u0159i specifikaci za\u0159\u00edzen\u00ed v\u017edy pou\u017e\u00edvejte RCCB pro jasnost.<\/p>\n<h3>Je RCB tot\u00e9\u017e co RCD?<\/h3>\n<p>Ne tak docela. <strong>RCD (rezidu\u00e1ln\u00ed proudov\u00fd chr\u00e1ni\u010d)<\/strong> je obvykle \u0161ir\u0161\u00ed term\u00edn kategorie IEC, kter\u00fd zahrnuje v\u0161echny typy za\u0159\u00edzen\u00ed na ochranu proti rezidu\u00e1ln\u00edmu proudu, zat\u00edmco <strong>RCB<\/strong> je specifi\u010dt\u011bj\u0161\u00ed (i kdy\u017e n\u011bkdy neform\u00e1ln\u00ed) zkratka pou\u017e\u00edvan\u00e1 v n\u011bkter\u00fdch kontextech pro ochranu jisti\u010dem rezidu\u00e1ln\u00edho proudu. RCD je preferovan\u00fd zast\u0159e\u0161uj\u00edc\u00ed term\u00edn v technick\u00fdch norm\u00e1ch.<\/p>\n<h3>Jak\u00fd je rozd\u00edl mezi RCB a MCB?<\/h3>\n<p>. <strong>RCB\/RCCB<\/strong> se zam\u011b\u0159uje na detekci svodov\u00e9ho nebo rezidu\u00e1ln\u00edho proudu (typicky 10-300 mA) k prevenci \u00farazu elektrick\u00fdm proudem a po\u017e\u00e1r\u016f zp\u016fsoben\u00fdch zemn\u00edm spojen\u00edm, zat\u00edmco <a href=\"https:\/\/test.viox.com\/cs\/mcb-full-form-in-electrical\/\"><strong>MCB (miniaturn\u00ed jisti\u010d)<\/strong><\/a> se zam\u011b\u0159uje na nadproudovou ochranu (p\u0159et\u00ed\u017een\u00ed a zkrat, typicky 6-125 A). Slou\u017e\u00ed r\u016fzn\u00fdm ochrann\u00fdm funkc\u00edm a obvykle se pou\u017e\u00edvaj\u00ed spole\u010dn\u011b pro kompletn\u00ed ochranu obvodu.<\/p>\n<h3>Je RCBO lep\u0161\u00ed ne\u017e RCB\/RCCB?<\/h3>\n<p>Z\u00e1le\u017e\u00ed na aplikaci. An <a href=\"https:\/\/test.viox.com\/cs\/rcbo-vs-rccb-mcb-comparison-space-cost-selectivity\/\"><strong>RCBO<\/strong><\/a> kombinuje ochranu proti rezidu\u00e1ln\u00edmu proudu s nadproudovou ochranou v jednom za\u0159\u00edzen\u00ed, co\u017e je pohodln\u011bj\u0161\u00ed a prostorov\u011b \u00fasporn\u011bj\u0161\u00ed. RCCB jsou v\u0161ak n\u00e1kladov\u011b efektivn\u011bj\u0161\u00ed p\u0159i ochran\u011b v\u00edce obvod\u016f jedn\u00edm za\u0159\u00edzen\u00edm. Spr\u00e1vn\u00e1 volba z\u00e1vis\u00ed na c\u00edlech ochrany, prostoru v panelu, n\u00e1kladov\u00fdch omezen\u00edch a po\u017eadavc\u00edch na selektivitu.<\/p>\n<h3>Jakou hodnotu citlivosti bych m\u011bl zvolit pro RCB\/RCCB?<\/h3>\n<ul>\n<li><strong>10mA<\/strong> \u2013 Zv\u00fd\u0161en\u00e1 ochrana pro l\u00e9ka\u0159sk\u00e1 za\u0159\u00edzen\u00ed a speci\u00e1ln\u00ed aplikace<\/li>\n<li><strong>30mA<\/strong> \u2013 Standard pro ochranu osob p\u0159ed \u00farazem elektrick\u00fdm proudem (po\u017eadov\u00e1no pro z\u00e1suvky a mokr\u00e9 prostory)<\/li>\n<li><strong>100 mA<\/strong> \u2013 Protipo\u017e\u00e1rn\u00ed ochrana se sn\u00ed\u017een\u00fdm ru\u0161iv\u00fdm vyp\u00edn\u00e1n\u00edm (vhodn\u00e9 pro dlouh\u00e9 obvody)<\/li>\n<li><strong>300 mA<\/strong> \u2013 Pouze protipo\u017e\u00e1rn\u00ed ochrana, nen\u00ed vhodn\u00e1 pro p\u0159\u00edmou ochranu p\u0159ed \u00farazem elektrick\u00fdm proudem<\/li>\n<\/ul>\n<p>Pro podrobn\u00e9 pokyny k v\u00fdb\u011bru viz <a href=\"https:\/\/test.viox.com\/cs\/how-to-choose-the-right-rccb-sensitivity\/\">jak vybrat spr\u00e1vnou citlivost RCCB<\/a>.<\/p>\n<h3>Mohu pou\u017e\u00edt 3f\u00e1zov\u00fd RCCB pro jednof\u00e1zov\u00e9 obvody?<\/h3>\n<p>Ano, ale nen\u00ed to n\u00e1kladov\u011b efektivn\u00ed. 4p\u00f3lov\u00fd (3P+N) RCCB m\u016f\u017ee chr\u00e1nit jednof\u00e1zov\u00e9 obvody, ale plat\u00edte za nepou\u017eit\u00e9 p\u00f3ly. Pro jednof\u00e1zov\u00e9 aplikace je lep\u0161\u00ed pou\u017e\u00edt 2p\u00f3lov\u00fd (1P+N) RCCB. Pro souvisej\u00edc\u00ed ot\u00e1zky viz <a href=\"https:\/\/test.viox.com\/cs\/can-you-use-a-3-phase-mccb-for-single-phase\/\">m\u016f\u017eete pou\u017e\u00edt 3f\u00e1zov\u00fd MCCB pro jednof\u00e1zov\u00e9 nap\u00e1jen\u00ed<\/a>.<\/p>\n<h3>Jak \u010dasto bych m\u011bl testovat sv\u016fj RCB\/RCCB?<\/h3>\n<p>Stiskn\u011bte testovac\u00ed tla\u010d\u00edtko <strong>m\u011bs\u00ed\u010dn\u011b<\/strong> pro bytov\u00e9 instalace a <strong>t\u00fddn\u011b<\/strong> pro komer\u010dn\u00ed\/pr\u016fmyslov\u00e9 instalace. Profesion\u00e1ln\u00ed testov\u00e1n\u00ed doby vypnut\u00ed by m\u011blo b\u00fdt prov\u00e1d\u011bno ka\u017ed\u00e9 2-3 roky nebo podle doporu\u010den\u00ed v\u00fdrobce. Pro podrobn\u00e9 postupy viz <a href=\"https:\/\/test.viox.com\/cs\/how-to-check-rccb-functionality-maintenance-guide\/\">jak zkontrolovat funk\u010dnost RCCB<\/a>.<\/p>\n<h3>Pro\u010d mi RCB\/RCCB neust\u00e1le vyp\u00edn\u00e1?<\/h3>\n<p>Mezi b\u011b\u017en\u00e9 p\u0159\u00ed\u010diny pat\u0159\u00ed:<\/p>\n<ul>\n<li>Vadn\u00fd spot\u0159ebi\u010d se zemn\u00edm svodem<\/li>\n<li>Po\u0161kozen\u00e1 izolace kabel\u016f<\/li>\n<li>Vniknut\u00ed vlhkosti do venkovn\u00edch obvod\u016f<\/li>\n<li>Nahromad\u011bn\u00fd svod z v\u00edce spot\u0159ebi\u010d\u016f<\/li>\n<li>Nespr\u00e1vn\u00e9 p\u0159ipojen\u00ed nulov\u00e9ho vodi\u010de k zemi<\/li>\n<li>P\u0159\u00edli\u0161 vysok\u00e1 citlivost za\u0159\u00edzen\u00ed pro charakteristiky obvodu<\/li>\n<\/ul>\n<p>Pokyny pro odstra\u0148ov\u00e1n\u00ed probl\u00e9m\u016f naleznete v <a href=\"https:\/\/test.viox.com\/cs\/40a-vs-63a-rcd-nuisance-tripping-guide\/\">Pr\u016fvodce ru\u0161iv\u00fdm vyp\u00edn\u00e1n\u00edm RCD 40A vs 63A<\/a>.<\/p>\n<h3>Jak\u00fd je rozd\u00edl mezi RCCB typu A, typu B a typu AC?<\/h3>\n<ul>\n<li><strong>Typ AC<\/strong> \u2013 Detekuje pouze st\u0159\u00eddav\u00e9 sinusov\u00e9 rezidu\u00e1ln\u00ed proudy (minim\u00e1ln\u00ed standard, postupn\u011b se vy\u0159azuje)<\/li>\n<li><strong>Typ A<\/strong> \u2013 Detekuje st\u0159\u00eddav\u00e9 + pulzuj\u00edc\u00ed stejnosm\u011brn\u00e9 rezidu\u00e1ln\u00ed proudy (minimum pro modern\u00ed spot\u0159ebi\u010de s elektronick\u00fdm \u0159\u00edzen\u00edm)<\/li>\n<li><strong>Typ B<\/strong> \u2013 Detekuje st\u0159\u00eddav\u00e9 + pulzuj\u00edc\u00ed stejnosm\u011brn\u00e9 + hladk\u00e9 stejnosm\u011brn\u00e9 rezidu\u00e1ln\u00ed proudy (po\u017eadov\u00e1no pro nab\u00edje\u010dky EV, VFD, sol\u00e1rn\u00ed invertory)<\/li>\n<li><strong>Typ F<\/strong> \u2013 Vylep\u0161en\u00fd typ A s imunitou v\u016f\u010di vysok\u00fdm frekvenc\u00edm<\/li>\n<\/ul>\n<p>Pro aplikace nab\u00edjen\u00ed EV viz <a href=\"https:\/\/test.viox.com\/cs\/rccb-ev-charging-type-b-vs-type-f-vs-type-ev\/\">RCCB EV nab\u00edjen\u00ed Typ B vs Typ F vs Typ EV<\/a>.<\/p>\n<h2>Z\u00e1v\u011br: Za hranicemi pln\u00e9ho tvaru RCB<\/h2>\n<p>Pochopen\u00ed toho, \u017ee <strong>RCB Pln\u00fd V\u00fdznam<\/strong> znamen\u00e1 <strong>Proudov\u00fd chr\u00e1ni\u010d<\/strong> je jen v\u00fdchoz\u00ed bod. Skute\u010dn\u00e1 hodnota poch\u00e1z\u00ed z pochopen\u00ed:<\/p>\n<ul>\n<li><strong>Jak RCB funguj\u00ed<\/strong> \u2013 Detekce nerovnov\u00e1hy proudu k prevenci \u00farazu elektrick\u00fdm proudem a po\u017e\u00e1r\u016f<\/li>\n<li><strong>Terminologick\u00e9 rozd\u00edly<\/strong> \u2013 RCB vs RCD vs RCCB vs RCBO a kdy kter\u00fd term\u00edn pou\u017e\u00edt<\/li>\n<li><strong>Principy ochrany<\/strong> \u2013 Pro\u010d RCB dopl\u0148uj\u00ed, ale nenahrazuj\u00ed MCB<\/li>\n<li><strong>Krit\u00e9ria v\u00fdb\u011bru<\/strong> \u2013 V\u00fdb\u011br spr\u00e1vn\u00e9 citlivosti, typu a konfigurace pro va\u0161i aplikaci<\/li>\n<li><strong>Po\u017eadavky na instalaci<\/strong> \u2013 Spr\u00e1vn\u00e9 um\u00edst\u011bn\u00ed, zapojen\u00ed a testovac\u00ed postupy<\/li>\n<li><strong>Postupy \u00fadr\u017eby<\/strong> \u2013 Pravideln\u00e9 testov\u00e1n\u00ed a kontrola pro zaji\u0161t\u011bn\u00ed trval\u00e9 ochrany<\/li>\n<\/ul>\n<p>Ochrana proti zbytkov\u00e9mu proudu nen\u00ed voliteln\u00e1 \u2013 je to kritick\u00fd syst\u00e9m pro ochranu \u017eivota, kter\u00fd zabra\u0148uje \u00farazu elektrick\u00fdm proudem a po\u017e\u00e1r\u016fm zp\u016fsoben\u00fdm elekt\u0159inou. A\u0165 u\u017e jste elektrik\u00e1\u0159, in\u017een\u00fdr, spr\u00e1vce budovy nebo majitel domu, porozum\u011bn\u00ed <strong>RCB Pln\u00fd V\u00fdznam<\/strong> a jeho praktick\u00e9 d\u016fsledky v\u00e1m umo\u017en\u00ed \u010dinit informovan\u00e1 rozhodnut\u00ed o elektrick\u00e9 bezpe\u010dnosti.<\/p>\n<p>Pro dal\u0161\u00ed vzd\u011bl\u00e1v\u00e1n\u00ed a podrobn\u00e9 technick\u00e9 pokyny t\u00fdkaj\u00edc\u00ed se elektrick\u00fdch ochrann\u00fdch za\u0159\u00edzen\u00ed prozkoumejte na\u0161i obs\u00e1hlou knihovnu \u010dl\u00e1nk\u016f o <a href=\"https:\/\/test.viox.com\/cs\/types-of-circuit-breakers\/\">jisti\u010de<\/a>, <a href=\"https:\/\/test.viox.com\/cs\/what-is-breaker-selectivity-coordination-guide\/\">koordinaci ochrany<\/a>a <a href=\"https:\/\/test.viox.com\/cs\/understanding-ground-fault-protection\/\">syst\u00e9mech elektrick\u00e9 bezpe\u010dnosti<\/a>.<\/p>\n<hr>\n<p><strong>O spole\u010dnosti VIOX Electric<\/strong><\/p>\n<p>VIOX je p\u0159edn\u00ed v\u00fdrobce n\u00edzkonap\u011b\u0165ov\u00fdch elektrick\u00fdch ochrann\u00fdch za\u0159\u00edzen\u00ed, v\u010detn\u011b MCB, MCCB, RCCB, RCBO a kompletn\u00edch distribu\u010dn\u00edch \u0159e\u0161en\u00ed. S v\u00edce ne\u017e 12 lety zku\u0161enost\u00ed v oboru poskytujeme vysoce kvalitn\u00ed, certifikovan\u00e9 elektrick\u00e9 komponenty pro reziden\u010dn\u00ed, komer\u010dn\u00ed a pr\u016fmyslov\u00e9 aplikace po cel\u00e9m sv\u011bt\u011b.<\/p>\n<p><strong>Souvisej\u00edc\u00ed zdroje:<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/test.viox.com\/cs\/types-of-circuit-breakers\/\">Kompletn\u00ed pr\u016fvodce typy jisti\u010d\u016f<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/cs\/how-to-select-an-mccb-for-a-panel\/\">Jak vybrat MCCB pro panel<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/cs\/circuit-breaker-ratings-icu-ics-icw-icm\/\">Porozum\u011bn\u00ed jmenovit\u00fdm hodnot\u00e1m jisti\u010d\u016f<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/cs\/circuit-protection-selection-framework-a-5-step-guide-for-panel-builders-iec-60947\/\">R\u00e1mec pro v\u00fdb\u011br elektrick\u00fdch ochrann\u00fdch za\u0159\u00edzen\u00ed<\/a><\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>When searching for RCB Full Form in Electrical, you&#8217;re looking for a clear answer: RCB stands for Residual Current Breaker. This life-saving electrical safety device is designed to protect against electric shock and fire by detecting leakage current\u2014current that escapes the intended circuit path, such as through a person&#8217;s body or damaged insulation. But understanding [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":21669,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-21668","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/posts\/21668","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/comments?post=21668"}],"version-history":[{"count":1,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/posts\/21668\/revisions"}],"predecessor-version":[{"id":21670,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/posts\/21668\/revisions\/21670"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/media\/21669"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/media?parent=21668"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/categories?post=21668"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/tags?post=21668"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}