{"id":21295,"date":"2026-01-16T16:04:33","date_gmt":"2026-01-16T08:04:33","guid":{"rendered":"https:\/\/viox.com\/?p=21295"},"modified":"2026-01-16T16:04:35","modified_gmt":"2026-01-16T08:04:35","slug":"how-to-test-ev-charger-6ma-dc-leakage-protection","status":"publish","type":"post","link":"https:\/\/test.viox.com\/cs\/how-to-test-ev-charger-6ma-dc-leakage-protection\/","title":{"rendered":"Jak testovat ochranu nab\u00edje\u010dky EV proti zemn\u00edmu \u00faniku: Ov\u011b\u0159en\u00ed vybavovac\u00edch \u00farovn\u00ed 6mA DC"},"content":{"rendered":"<div class=\"product-intro\">\n<p><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Electrician-using-Fluke-1664-FC-to-test-EV-charger-6mA-DC-leakage-protection.webp\" alt=\"Electrician using Fluke 1664 FC to test EV charger 6mA DC leakage protection\" \/>Elektrik\u00e1\u0159 pou\u017e\u00edv\u00e1 Fluke 1664 FC k testov\u00e1n\u00ed ochrany proti \u00faniku stejnosm\u011brn\u00e9ho proudu 6 mA u nab\u00edje\u010dky EV.<\/p>\n<p>Pokud jste instalovali komer\u010dn\u00ed nab\u00edjec\u00ed stanici pro elektromobily, pouh\u00e9 zapnut\u00ed a kontrola, zda se auto nab\u00edj\u00ed, nesta\u010d\u00ed. Neviditeln\u00e9 riziko v modern\u00ed infrastruktu\u0159e pro elektromobily je <strong>\u00danik stejnosm\u011brn\u00e9ho proudu<\/strong>\u2014 jev, kter\u00fd m\u016f\u017ee ti\u0161e \u201coslepit\u201d va\u0161e nad\u0159azen\u00e9 RCD typu A a u\u010dinit tak ochranu cel\u00e9ho objektu proti zemn\u00edmu \u00faniku zbyte\u010dnou.<\/p>\n<p>Ov\u011b\u0159en\u00ed <strong>\u00darove\u0148 vybaven\u00ed 6 mA DC<\/strong> je kritick\u00fdm posledn\u00edm krokem p\u0159i uv\u00e1d\u011bn\u00ed do provozu jak\u00e9hokoli EVSE (Electric Vehicle Supply Equipment) re\u017eimu 3. Tato p\u0159\u00edru\u010dka se zam\u011b\u0159uje v\u00fdhradn\u011b na praktick\u00e9 ov\u011b\u0159en\u00ed shody s normou IEC 62955.<\/p>\n<p>Tento \u010dl\u00e1nek slou\u017e\u00ed jako posledn\u00ed d\u00edl na\u0161\u00ed trilogie o ochran\u011b EV:<\/p>\n<ol>\n<li><strong>Architektura:<\/strong> <a href=\"https:\/\/test.viox.com\/cs\/commercial-vs-residential-ev-charging-protection-guide\/\">Komer\u010dn\u00ed vs. Reziden\u010dn\u00ed ochrana nab\u00edjen\u00ed EV<\/a> (N\u00e1vrh syst\u00e9mu)<\/li>\n<li><strong>V\u00fdb\u011br:<\/strong> <a href=\"https:\/\/test.viox.com\/cs\/rccb-ev-charging-type-b-vs-type-f-vs-type-ev\/\">V\u00fdb\u011br RCD typu B vs. typu F vs. typu EV<\/a> (V\u00fdb\u011br komponent)<\/li>\n<li><strong>Ov\u011b\u0159en\u00ed:<\/strong> <strong>Jak testovat ochranu 6mA DC<\/strong> (Tato p\u0159\u00edru\u010dka)<\/li>\n<\/ol>\n<hr \/>\n<h2>\u010c\u00e1st 1: Vybaven\u00ed (Pro\u010d v\u00e1\u0161 standardn\u00ed tester nebude fungovat)<\/h2>\n<p>B\u011b\u017enou chybou, kterou vid\u00edme v ter\u00e9nu, je, \u017ee se dodavatel\u00e9 sna\u017e\u00ed ov\u011b\u0159it nab\u00edje\u010dky EV pomoc\u00ed standardn\u00edch tester\u016f z\u00e1suvek nebo star\u0161\u00edch multifunk\u010dn\u00edch tester\u016f ur\u010den\u00fdch pouze pro ochranu AC. <strong>To je nebezpe\u010dn\u00e9 a ne\u00fa\u010dinn\u00e9.<\/strong><\/p>\n<p>Standardn\u00ed testery RCD injektuj\u00ed st\u0159\u00eddav\u00fd poruchov\u00fd proud. Nemohou generovat plynul\u00fd stejnosm\u011brn\u00fd zbytkov\u00fd proud pot\u0159ebn\u00fd k testov\u00e1n\u00ed RDC-DD (Residual Direct Current Detecting Device). Pro ov\u011b\u0159en\u00ed shody s <strong>IEC 62955<\/strong>, pot\u0159ebujete tester schopn\u00fd generovat p\u0159esn\u00fd stejnosm\u011brn\u00fd rampov\u00fd proud za\u010d\u00ednaj\u00edc\u00ed od 2 mA.<\/p>\n<h3>Po\u017eadovan\u00e1 sada n\u00e1stroj\u016f<\/h3>\n<p>Chcete-li tento test prov\u00e9st legitimn\u011b, mus\u00edte pou\u017e\u00edt multifunk\u010dn\u00ed instala\u010dn\u00ed tester, kter\u00fd konkr\u00e9tn\u011b podporuje <strong>Testov\u00e1n\u00ed RCD typu B \/ typu EV<\/strong>.<\/p>\n<p><strong>Tabulka 1: Srovn\u00e1n\u00ed testovac\u00edho za\u0159\u00edzen\u00ed pro nab\u00edje\u010dky EV<\/strong><\/p>\n<table style=\"border-collapse: collapse; width: 100%; margin-bottom: 20px;\" border=\"1\" cellspacing=\"0\" cellpadding=\"10\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th>Za\u0159\u00edzen\u00ed<\/th>\n<th>Schopnost testov\u00e1n\u00ed DC<\/th>\n<th>Re\u017eim IEC 62955<\/th>\n<th>Typical Application<\/th>\n<th>Kl\u00ed\u010dov\u00e1 vlastnost<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Standardn\u00ed tester z\u00e1suvek<\/strong><\/td>\n<td>\u274c \u017d\u00e1dn\u00e1<\/td>\n<td>\u274c Ne<\/td>\n<td>Kontrola majitelem domu<\/td>\n<td>Vhodn\u00e9 pouze pro polaritu zapojen\u00ed<\/td>\n<\/tr>\n<tr>\n<td><strong>Z\u00e1kladn\u00ed tester RCD<\/strong><\/td>\n<td>\u274c Pouze AC (typ AC\/A)<\/td>\n<td>\u274c Ne<\/td>\n<td>B\u011b\u017en\u00e9 dom\u00e1c\u00ed pou\u017eit\u00ed<\/td>\n<td>Nedok\u00e1\u017ee detekovat \u00fanik stejnosm\u011brn\u00e9ho proudu<\/td>\n<\/tr>\n<tr>\n<td><strong>Fluke 1664 FC + FEV300<\/strong><\/td>\n<td>\u2705 6mA DC Ramp<\/td>\n<td>\u2705 Ano<\/td>\n<td>Profesion\u00e1ln\u00ed uveden\u00ed do provozu<\/td>\n<td>Automatick\u00e1 testovac\u00ed sekvence a bezpe\u010dnostn\u00ed p\u0159edb\u011b\u017en\u00fd test<\/td>\n<\/tr>\n<tr>\n<td><strong>Metrel Eurotest XC\/XE<\/strong><\/td>\n<td>\u2705 6mA DC Ramp<\/td>\n<td>\u2705 Ano<\/td>\n<td>Profesion\u00e1ln\u00ed uveden\u00ed do provozu<\/td>\n<td>Podrobn\u00e9 nab\u00eddky specifick\u00e9 pro EVSE<\/td>\n<\/tr>\n<tr>\n<td><strong>Megger MFT1741+<\/strong><\/td>\n<td>\u2705 6mA DC Ramp<\/td>\n<td>\u2705 Ano<\/td>\n<td>Profesion\u00e1ln\u00ed uveden\u00ed do provozu<\/td>\n<td>\u201cTechnologie \u201dm\u011b\u0159i\u010de spolehlivosti\u201c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<blockquote><p><strong>Pozn\u00e1mka:<\/strong> RDC-DD je navr\u017een tak, aby detekoval \u00fanik stejnosm\u011brn\u00e9ho proudu &gt;6 mA a odpojil nap\u00e1jen\u00ed, aby se zabr\u00e1nilo magnetizaci (saturaci) nad\u0159azen\u00e9ho RCD typu A. Pokud to netestujete, spol\u00e9h\u00e1te se na v\u00edru, nikoli na fyziku.<\/p><\/blockquote>\n<figure style=\"margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Internal-diagram-of-RDC-DD-showing-DC-leakage-detection-mechanism.webp\" alt=\"Internal diagram of RDC-DD showing DC leakage detection mechanism\" \/><figcaption style=\"text-align: center; font-style: italic; color: #555; margin-top: 8px;\">Vnit\u0159n\u00ed sch\u00e9ma RDC-DD zobrazuj\u00edc\u00ed mechanismus detekce \u00faniku stejnosm\u011brn\u00e9ho proudu, ilustruj\u00edc\u00ed princip zru\u0161en\u00ed toku.<\/figcaption><\/figure>\n<hr \/>\n<h2>\u010c\u00e1st 2: Postup (Ov\u011b\u0159en\u00ed krok za krokem)<\/h2>\n<p>Testov\u00e1n\u00ed \u00faniku stejnosm\u011brn\u00e9ho proudu se li\u0161\u00ed od standardn\u00edho testov\u00e1n\u00ed AC RCD. Pou\u017e\u00edv\u00e1me <strong>Rampov\u00fd test<\/strong> sp\u00ed\u0161e ne\u017e jednoduch\u00fd test doby vybaven\u00ed. Chceme v\u011bd\u011bt <em>p\u0159esn\u011b<\/em> kdy za\u0159\u00edzen\u00ed vypne, ne jen <em>pokud<\/em> \u017ee vypne.<\/p>\n<h3>Krok 1: Odpojte vozidlo<\/h3>\n<p><strong>D\u016fle\u017eit\u00e9 bezpe\u010dnostn\u00ed varov\u00e1n\u00ed:<\/strong> Nikdy neprov\u00e1d\u011bjte testov\u00e1n\u00ed elektrick\u00e9 bezpe\u010dnosti, kdy\u017e je auto p\u0159ipojeno.<br \/>\nPalubn\u00ed nab\u00edje\u010dka (OBC) uvnit\u0159 EV obsahuje kondenz\u00e1tory a EMI filtry, kter\u00e9 mohou do obvodu zav\u00e9st kapacitu. To m\u016f\u017ee absorbovat testovac\u00ed proud nebo vytv\u00e1\u0159et \u0161um, co\u017e vede k nep\u0159esn\u00fdm hodnot\u00e1m nebo potenci\u00e1ln\u00edmu po\u0161kozen\u00ed citliv\u00e9 elektroniky vozidla.<\/p>\n<ul>\n<li><strong>Akce:<\/strong> Odpojte EV. Nab\u00edjec\u00ed stanice by m\u011bla b\u00fdt ve stavu \u201cA\u201d (pohotovostn\u00ed re\u017eim) nebo \u201cB\u201d (detekov\u00e1no vozidlo) prost\u0159ednictv\u00edm simulace adapt\u00e9ru.<\/li>\n<\/ul>\n<h3>Krok 2: P\u0159ipojte testovac\u00ed adapt\u00e9r<\/h3>\n<p>Proto\u017ee nem\u016f\u017eete bezpe\u010dn\u011b strkat sondy do \u017eiv\u00e9 z\u00e1suvky typu 2, pou\u017eijte testovac\u00ed adapt\u00e9r EV (jako je Fluke FEV300).<\/p>\n<ol>\n<li>Zasu\u0148te adapt\u00e9r do nab\u00edjec\u00ed z\u00e1suvky.<\/li>\n<li>Nastavte adapt\u00e9r na <strong>Stav C<\/strong> (Nab\u00edjen\u00ed) pro uzav\u0159en\u00ed styka\u010de EVSE.<\/li>\n<li>Ov\u011b\u0159te p\u0159\u00edtomnost nap\u011bt\u00ed a spr\u00e1vnou rotaci f\u00e1z\u00ed na va\u0161em testeru.<\/li>\n<li><strong>D\u016fle\u017eit\u00e9:<\/strong> P\u0159ed pokra\u010dov\u00e1n\u00edm ov\u011b\u0159te kontinuitu ochrann\u00e9ho uzemn\u011bn\u00ed (PE). Pokud je impedance zemn\u00ed smy\u010dky p\u0159\u00edli\u0161 vysok\u00e1, test RCD sel\u017ee bez ohledu na kvalitu za\u0159\u00edzen\u00ed.<\/li>\n<\/ol>\n<h3>Krok 3: Vyberte test DC Ramp<\/h3>\n<p>Na va\u0161em multifunk\u010dn\u00edm testeru:<\/p>\n<ol>\n<li>Vyberte <strong>Test RCD<\/strong>.<\/li>\n<li>Zvolte typ RCD: <strong>Typ B<\/strong> nebo <strong>Typ EV<\/strong> (li\u0161\u00ed se podle zna\u010dky).<\/li>\n<li>Zvolte re\u017eim: <strong>Ramp (Rampa)<\/strong> (\u010dasto symbolizov\u00e1no ikonou schodi\u0161t\u011b).<\/li>\n<li>Nastavte jmenovit\u00fd proud: <strong>6 mA<\/strong>.<\/li>\n<\/ol>\n<p><strong>Pro\u010d Rampu?<\/strong> Jednoduch\u00fd test \u201cPro\u0161el\/Nepro\u0161el\u201d okam\u017eit\u011b vst\u0159\u00edkne 6 mA. Pokud to vypne, skv\u011bl\u00e9 \u2013 ale bylo to citliv\u00e9 p\u0159i 2 mA (p\u0159\u00edli\u0161 citliv\u00e9\/ru\u0161iv\u00e9 vyp\u00edn\u00e1n\u00ed) nebo p\u0159esn\u011b p\u0159i 6 mA? Test Ramp (Rampa) pomalu zvy\u0161uje stejnosm\u011brn\u00fd proud, aby na\u0161el p\u0159esn\u00fd bod zlomu.<\/p>\n<p><strong>Tabulka 2: Testovac\u00ed parametry a krit\u00e9ria p\u0159ijatelnosti<\/strong><\/p>\n<table style=\"border-collapse: collapse; width: 100%; margin-bottom: 20px;\" border=\"1\" cellspacing=\"0\" cellpadding=\"10\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th>Testovac\u00ed parametr<\/th>\n<th>Po\u017eadavek IEC 62955<\/th>\n<th>Typick\u00fd v\u00fdsledek za\u0159\u00edzen\u00ed VIOX<\/th>\n<th>Krit\u00e9ria pro \u00fasp\u011b\u0161n\u00e9\/ne\u00fasp\u011b\u0161n\u00e9 hodnocen\u00ed<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Testovac\u00ed proud<\/strong><\/td>\n<td>Hladk\u00fd DC (rostouc\u00ed)<\/td>\n<td>NEUPLAT\u0147UJE SE<\/td>\n<td>Mus\u00ed b\u00fdt DC, ne pulzuj\u00edc\u00ed AC<\/td>\n<\/tr>\n<tr>\n<td><strong>Jmenovit\u00e1 \u00farove\u0148 vypnut\u00ed<\/strong><\/td>\n<td>6 mA DC<\/td>\n<td>4,5 mA \u2013 5,8 mA<\/td>\n<td><strong>Mus\u00ed b\u00fdt \u2264 6,0 mA<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>Minim\u00e1ln\u00ed \u00farove\u0148 vypnut\u00ed<\/strong><\/td>\n<td>&gt; 3 mA (nefunk\u010dn\u00ed)<\/td>\n<td>3,5 mA \u2013 4,0 mA<\/td>\n<td><strong>Mus\u00ed b\u00fdt &gt; 3,0 mA<\/strong> (aby se zabr\u00e1nilo ru\u0161iv\u00e9mu vyp\u00edn\u00e1n\u00ed)<\/td>\n<\/tr>\n<tr>\n<td><strong>Doba vypnut\u00ed<\/strong><\/td>\n<td>\u2264 10 sekund<\/td>\n<td>&lt; 2 sekundy<\/td>\n<td>\u2264 10 sekund<\/td>\n<\/tr>\n<tr>\n<td><strong>Teplota okol\u00ed<\/strong><\/td>\n<td>-25 \u00b0C a\u017e 40 \u00b0C<\/td>\n<td>Pokojov\u00e1 teplota<\/td>\n<td>Zkontrolujte sn\u00ed\u017een\u00ed jmenovit\u00e9ho v\u00fdkonu v\u00fdrobce<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Krok 4: Prove\u010fte test Ramp (Rampa)<\/h3>\n<p>Stiskn\u011bte tla\u010d\u00edtko <strong>TEST<\/strong> .<\/p>\n<ol>\n<li>Tester ov\u011b\u0159\u00ed, zda je st\u0159\u00eddav\u00fd pr\u016fb\u011bh \u010dist\u00fd.<\/li>\n<li>Za\u010dne vst\u0159ikovat stejnosm\u011brn\u00fd proud, po\u010d\u00ednaje p\u0159ibli\u017en\u011b 2 mA.<\/li>\n<li>Proud se zvy\u0161uje v mal\u00fdch kroc\u00edch (nap\u0159. po 0,5 mA).<\/li>\n<li><strong>PR\u00c1SK!<\/strong> Styka\u010d EVSE by se m\u011bl otev\u0159\u00edt.<\/li>\n<li><strong>P\u0159e\u010dt\u011bte si v\u00fdsledek:<\/strong> Obrazovka zobraz\u00ed <em>p\u0159esn\u011b ten<\/em> proud v okam\u017eiku vypnut\u00ed.\n<ul>\n<li><em>P\u0159\u00edklad v\u00fdsledku:<\/em> <strong>5,4 mA<\/strong> (PRO\u0160EL)<\/li>\n<li><em>P\u0159\u00edklad v\u00fdsledku:<\/em> <strong>&gt;6,0 mA<\/strong> (NEPRO\u0160EL \u2013 Nebezpe\u010dn\u00e9)<\/li>\n<li><em>P\u0159\u00edklad v\u00fdsledku:<\/em> <strong>2,1 mA<\/strong> (NEPRO\u0160EL \u2013 P\u0159\u00edli\u0161 citliv\u00e9)<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>Krok 5: Dokumentujte v\u00fdsledky<\/h3>\n<p>Z d\u016fvod\u016f odpov\u011bdnosti a z\u00e1ruky zdokumentujte konkr\u00e9tn\u00ed hodnotu vypnut\u00ed.<\/p>\n<ul>\n<li>Vyfo\u0165te obrazovku testeru.<\/li>\n<li>Pou\u017eijte software jako Fluke Connect k ulo\u017een\u00ed dat do cloudu.<\/li>\n<li>Poznamenejte si teplotu okol\u00ed, proto\u017ee extr\u00e9mn\u00ed teplo m\u016f\u017ee ovlivnit magnetickou permeabilitu u levn\u011bj\u0161\u00edch jader (viz n\u00e1\u0161 <a href=\"https:\/\/test.viox.com\/cs\/electrical-derating-temperature-altitude-grouping-factors\/\">Hlavn\u00ed pr\u016fvodce sn\u00ed\u017een\u00edm elektrick\u00e9ho v\u00fdkonu<\/a>).<\/li>\n<\/ul>\n<figure style=\"margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Fluke-FEV300-adapter-connected-to-VIOX-EV-charging-station-for-RCD-testing.webp\" alt=\"Fluke FEV300 adapter connected to VIOX EV charging station for RCD testing\" \/><figcaption style=\"text-align: center; font-style: italic; color: #555; margin-top: 8px;\">Adapt\u00e9r Fluke FEV300 p\u0159ipojen\u00fd k nab\u00edjec\u00ed stanici VIOX EV pro testov\u00e1n\u00ed RCD ve stavu C (nab\u00edjen\u00ed).<\/figcaption><\/figure>\n<figure style=\"margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Wiring-diagram-for-EV-charger-RDC-DD-testing-setup.webp\" alt=\"Wiring diagram for EV charger RDC-DD testing setup\" \/><figcaption style=\"text-align: center; font-style: italic; color: #555; margin-top: 8px;\">Sch\u00e9ma zapojen\u00ed pro testovac\u00ed sestavu RDC-DD nab\u00edje\u010dky EV zobrazuj\u00edc\u00ed sekvenci p\u0159ipojen\u00ed od rozvodn\u00e9 desky k testeru.<\/figcaption><\/figure>\n<hr \/>\n<h2>\u010c\u00e1st 3: Odstra\u0148ov\u00e1n\u00ed probl\u00e9m\u016f s \u201cfale\u0161n\u011b negativn\u00edmi\u201d v\u00fdsledky\u201d<\/h2>\n<p>Koupili jste si vysoce kvalitn\u00ed VIOX RDC-DD, ale tester hl\u00e1s\u00ed \u201c\u017d\u00e1dn\u00e9 vypnut\u00ed\u201d. Ne\u017e obvin\u00edte za\u0159\u00edzen\u00ed, zkontrolujte tyto b\u011b\u017en\u00e9 chyby instalace.<\/p>\n<h3>Probl\u00e9m 1: Nespr\u00e1vn\u00e1 polarita zapojen\u00ed<\/h3>\n<p>Na rozd\u00edl od jednoduch\u00fdch elektromechanick\u00fdch AC MCB je mnoho elektronick\u00fdch modul\u016f RDC-DD <strong>citliv\u00fdch na sm\u011br<\/strong>. Pou\u017e\u00edvaj\u00ed senzor fluxgate, kter\u00fd o\u010dek\u00e1v\u00e1, \u017ee proud bude proudit z linky do z\u00e1t\u011b\u017ee.<\/p>\n<ul>\n<li><strong>P\u0159\u00edznak:<\/strong> Tester se rozb\u011bhne na 10 mA nebo v\u00edce a jednodu\u0161e vypr\u0161\u00ed \u010dasov\u00fd limit.<\/li>\n<li><strong>Diagn\u00f3za:<\/strong> Zkontrolujte sch\u00e9ma zapojen\u00ed. Zapojili jste nap\u00e1jen\u00ed do v\u00fdstupn\u00edch svorek?<\/li>\n<li><strong>\u0158e\u0161en\u00ed:<\/strong> Oto\u010dte zapojen\u00ed tak, aby odpov\u00eddalo ozna\u010den\u00ed \u201cLine\/Load\u201d nebo \u201cIn\/Out\u201d.<\/li>\n<\/ul>\n<h3>Probl\u00e9m 2: \u0160patn\u00e9 uzemn\u011bn\u00ed (probl\u00e9my se syst\u00e9mem TT)<\/h3>\n<p>V uzem\u0148ovac\u00edch syst\u00e9mech TT (b\u011b\u017en\u00e9 v n\u011bkter\u00fdch oblastech) se zemn\u00edc\u00ed cesta spol\u00e9h\u00e1 na zemn\u00edc\u00ed ty\u010d. Pokud je odpor p\u016fdy p\u0159\u00edli\u0161 vysok\u00fd (R<sub>A<\/sub> &gt; 100 \u03a9), tester nemus\u00ed b\u00fdt schopen dodat po\u017eadovan\u00fd testovac\u00ed proud, nebo detekuje nebezpe\u010dn\u00e9 dotykov\u00e9 nap\u011bt\u00ed (&gt; 50 V) na PE vodi\u010di a z bezpe\u010dnostn\u00edch d\u016fvod\u016f test p\u0159eru\u0161\u00ed.<\/p>\n<ul>\n<li><strong>\u0158e\u0161en\u00ed:<\/strong> Nejprve zm\u011b\u0159te Z<sub>S<\/sub> (Impedance zemn\u00edc\u00ed smy\u010dky). Viz <a href=\"https:\/\/test.viox.com\/cs\/understanding-ground-fault-protection\/\">Pochopen\u00ed ochrany proti zemn\u00edmu spojen\u00ed<\/a> pro p\u0159\u00edpustn\u00e9 limity.<\/li>\n<\/ul>\n<h3>Probl\u00e9m 3: Nen\u00ed aktivov\u00e1na funkce RDC-DD<\/h3>\n<p>N\u011bkter\u00e9 \u201cchytr\u00e9\u201d nab\u00edje\u010dky EV maj\u00ed funkci RDC-DD integrovanou do hlavn\u00ed desky PCB, ovladatelnou pomoc\u00ed firmwaru.<\/p>\n<ul>\n<li><strong>P\u0159\u00edznak:<\/strong> Nebyla detekov\u00e1na \u017e\u00e1dn\u00e1 aktivace.<\/li>\n<li><strong>\u0158e\u0161en\u00ed:<\/strong> Zkontrolujte konfigura\u010dn\u00ed aplikaci nab\u00edje\u010dky. Ujist\u011bte se, \u017ee je p\u0159epnuta mo\u017enost \u201cOchrana proti \u00faniku DC proudu\u201d. <strong>NA<\/strong>.<\/li>\n<\/ul>\n<p><strong>Tabulka 3: Rychl\u00e1 referen\u010dn\u00ed p\u0159\u00edru\u010dka pro odstra\u0148ov\u00e1n\u00ed probl\u00e9m\u016f<\/strong><\/p>\n<table style=\"border-collapse: collapse; width: 100%; margin-bottom: 20px;\" border=\"1\" cellspacing=\"0\" cellpadding=\"10\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th>P\u0159\u00edznak<\/th>\n<th>Pravd\u011bpodobn\u00e1 p\u0159\u00ed\u010dina<\/th>\n<th>Diagnostick\u00fd krok<\/th>\n<th>\u0158e\u0161en\u00ed<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Tester zobrazuje \u201cNo Trip\u201d (\u017d\u00e1dn\u00e1 aktivace)\u201d<\/strong><\/td>\n<td>Obr\u00e1cen\u00e1 polarita<\/td>\n<td>Zkontrolujte sm\u011br zapojen\u00ed<\/td>\n<td>Spr\u00e1vn\u011b p\u0159epojte vstup\/v\u00fdstup<\/td>\n<\/tr>\n<tr>\n<td><strong>\u201cError 4\u201d \/ \u201cHigh Z\u201d (Chyba 4 \/ Vysok\u00e1 Z)\u201d<\/strong><\/td>\n<td>\u0160patn\u00e9 uzemn\u011bn\u00ed (TT)<\/td>\n<td>Zm\u011b\u0159te R<sub>A<\/sub> \/ Z<sub>S<\/sub><\/td>\n<td>Zlep\u0161ete zemn\u00edc\u00ed elektrodu<\/td>\n<\/tr>\n<tr>\n<td><strong>\u017d\u00e1dn\u00e9 nap\u011bt\u00ed v z\u00e1suvce<\/strong><\/td>\n<td>Adapt\u00e9r ve stavu A<\/td>\n<td>Zkontrolujte LED diody adapt\u00e9ru<\/td>\n<td>Oto\u010dte knofl\u00edkem do polohy \u201cState C\u201d (Nab\u00edjen\u00ed)<\/td>\n<\/tr>\n<tr>\n<td><strong>Aktivace &gt; 6 mA (nap\u0159. 15 mA)<\/strong><\/td>\n<td>Nespr\u00e1vn\u00fd typ RCD<\/td>\n<td>Zkontrolujte \u0161t\u00edtek za\u0159\u00edzen\u00ed<\/td>\n<td>Ujist\u011bte se, \u017ee se jedn\u00e1 o 6mA RDC-DD, nikoli 30mA AC<\/td>\n<\/tr>\n<tr>\n<td><strong>Okam\u017eit\u00e1 aktivace (0 mA)<\/strong><\/td>\n<td>Existuj\u00edc\u00ed porucha<\/td>\n<td>Odpojte v\u00fdstup<\/td>\n<td>Vyhledejte poruchu DC zapojen\u00ed v downstreamu<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<figure style=\"margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Diagram-showing-correct-vs-reversed-wiring-polarity-for-electronic-RCDs.webp\" alt=\"Diagram showing correct vs reversed wiring polarity for electronic RCDs\" \/><figcaption style=\"text-align: center; font-style: italic; color: #555; margin-top: 8px;\">Sch\u00e9ma zn\u00e1zor\u0148uj\u00edc\u00ed spr\u00e1vnou vs. obr\u00e1cenou polaritu zapojen\u00ed pro elektronick\u00e9 RCD; obr\u00e1cen\u00e9 zapojen\u00ed zp\u016fsobuje nesoulad magnetick\u00e9ho toku.<\/figcaption><\/figure>\n<hr \/>\n<h2>Z\u00e1v\u011br<\/h2>\n<p>Testov\u00e1n\u00ed <strong>\u00darove\u0148 vybaven\u00ed 6 mA DC<\/strong> nen\u00ed jen form\u00e1ln\u00ed z\u00e1le\u017eitost; je to z\u00e1ruka, \u017ee va\u0161e nab\u00edjec\u00ed infrastruktura EV je bezpe\u010dn\u00e1 a v souladu s <strong>IEC 62955<\/strong> a <strong>IEC 61851<\/strong>. Bez tohoto specifick\u00e9ho testu si nem\u016f\u017eete b\u00fdt jisti, \u017ee je aktivn\u00ed ochrana proti \u00faniku DC proudu, a ponech\u00e1v\u00e1te upstream <a href=\"https:\/\/test.viox.com\/cs\/iec-61008-1-standard-rccb-requirements-explained\/\">Proudov\u00e9 chr\u00e1ni\u010de typu A<\/a> zraniteln\u00fd v\u016f\u010di \u201eoslepen\u00ed\u201c.<\/p>\n<p><strong>Verdikt: \u2705 Rozhodn\u011b ano.<\/strong><br \/>\nProfesion\u00e1ln\u00ed ov\u011b\u0159en\u00ed pomoc\u00ed metody ramp testu je jedin\u00fd zp\u016fsob, jak s jistotou schv\u00e1lit instalaci.<\/p>\n<p>Tato p\u0159\u00edru\u010dka uzav\u00edr\u00e1 na\u0161i <strong>EV Protection Trilogy (Trilogie ochrany EV)<\/strong>. Pochopen\u00edm <a href=\"https:\/\/test.viox.com\/cs\/commercial-vs-residential-ev-charging-protection-guide\/\">syst\u00e9mov\u00e9 architektury<\/a>, v\u00fdb\u011brem <a href=\"https:\/\/test.viox.com\/cs\/rccb-ev-charging-type-b-vs-type-f-vs-type-ev\/\">spr\u00e1vn\u00fdch typ\u016f RCD<\/a>, a prov\u00e1d\u011bn\u00edm d\u016fkladn\u00e9ho <strong>6mA DC ov\u011b\u0159en\u00ed<\/strong>, zajist\u00edte, \u017ee va\u0161e instalace VIOX spl\u0148uj\u00ed nejvy\u0161\u0161\u00ed bezpe\u010dnostn\u00ed standardy.<\/p>\n<p>Pro pomoc s v\u00fdb\u011brem spr\u00e1vn\u00fdch ochrann\u00fdch za\u0159\u00edzen\u00ed pro v\u00e1\u0161 p\u0159\u00ed\u0161t\u00ed projekt kontaktujte technick\u00fd t\u00fdm VIOX.<\/p>\n<hr \/>\n<h2>\u010cASTO KLADEN\u00c9 DOTAZY<\/h2>\n<p><strong>Ot\u00e1zka: Mohu pou\u017e\u00edt b\u011b\u017en\u00fd z\u00e1suvkov\u00fd tester RCD k ov\u011b\u0159en\u00ed DC ochrany?<\/strong><br \/>\n<strong>A:<\/strong> B\u011b\u017en\u00e9 testery proudov\u00fdch chr\u00e1ni\u010d\u016f testuj\u00ed pouze st\u0159\u00eddav\u00e9 (typ AC) nebo pulzuj\u00edc\u00ed stejnosm\u011brn\u00e9 (typ A) poruchov\u00e9 proudy. Nejsou schopny generovat hladk\u00fd stejnosm\u011brn\u00fd proud pot\u0159ebn\u00fd k ov\u011b\u0159en\u00ed 6mA prahu RDC-DD. Mus\u00edte pou\u017e\u00edt tester vyhovuj\u00edc\u00ed norm\u011b IEC 62955.<\/p>\n<p><strong>Ot\u00e1zka: Jak\u00fd je rozd\u00edl mezi prahov\u00fdmi hodnotami aktivace 6 mA DC a 30 mA AC?<\/strong><br \/>\n<strong>A:<\/strong> 30 mA AC je prahov\u00e1 hodnota pro ochranu osob p\u0159ed \u00farazem elektrick\u00fdm proudem (fibrilace komor). 6 mA DC je prahov\u00e1 hodnota pro ochranu za\u0159\u00edzen\u00ed \u2013 zaji\u0161\u0165uje, \u017ee stejnosm\u011brn\u00fd unikaj\u00edc\u00ed proud nenasyt\u00ed (nezaslep\u00ed) nad\u0159azen\u00fd proudov\u00fd chr\u00e1ni\u010d typu A, co\u017e by mu zabr\u00e1nilo detekovat st\u0159\u00eddav\u00e9 poruchy.<\/p>\n<p><strong>Ot\u00e1zka: Mus\u00edm testovat DC ochranu, pokud m\u00e1 nab\u00edje\u010dka vestav\u011bnou funkci RDC-DD?<\/strong><br \/>\n<strong>A:<\/strong> Ano. I vestav\u011bn\u00e1 za\u0159\u00edzen\u00ed mus\u00ed b\u00fdt ov\u011b\u0159ena b\u011bhem uv\u00e1d\u011bn\u00ed do provozu, aby se zajistilo, \u017ee spr\u00e1vn\u011b funguj\u00ed a nebyly po\u0161kozeny b\u011bhem p\u0159epravy nebo instalace. Viz <a href=\"https:\/\/test.viox.com\/cs\/how-to-check-rccb-functionality-maintenance-guide\/\">Jak zkontrolovat funk\u010dnost RCCB<\/a>.<\/p>\n<p><strong>Ot\u00e1zka: Jak \u010dasto by se m\u011bla DC ochrana znovu testovat?<\/strong><br \/>\n<strong>A:<\/strong> IEC 61851 doporu\u010duje prov\u00e1d\u011bt pravideln\u00e9 kontroly. V komer\u010dn\u00edm prost\u0159ed\u00ed doporu\u010dujeme opakovan\u00e9 testov\u00e1n\u00ed ro\u010dn\u011b nebo kdykoli je jednotka podrobena \u00fadr\u017eb\u011b nebo aktualizaci firmwaru.<\/p>\n<p><strong>Ot\u00e1zka: M\u016f\u017ee DC \u00fanik skute\u010dn\u011b \u201coslepit\u201d RCD typu A? Jak?<\/strong><br \/>\n<strong>A:<\/strong> Ano. DC proud vytv\u00e1\u0159\u00ed konstantn\u00ed magnetick\u00fd tok v sn\u00edmac\u00edm j\u00e1dru RCD. To tla\u010d\u00ed j\u00e1dro do magnetick\u00e9 saturace. Jakmile je j\u00e1dro nasycen\u00e9, nem\u016f\u017ee ji\u017e detekovat st\u0159\u00eddav\u00e9 magnetick\u00e9 pole zp\u016fsoben\u00e9 AC zemn\u00ed poruchou, co\u017e znamen\u00e1, \u017ee RCD se neaktivuje, kdy\u017e je to pot\u0159eba.<\/p>\n<p><strong>Ot\u00e1zka: Jak\u00fd je rozd\u00edl mezi RDC-DD a RDC-PD?<\/strong><br \/>\n<strong>A:<\/strong> . <strong>RDC-DD<\/strong> (Za\u0159\u00edzen\u00ed pro detekci zbytkov\u00e9ho stejnosm\u011brn\u00e9ho proudu) pouze <em>detekuje<\/em> poruchu a vy\u0161le sign\u00e1l samostatn\u00e9mu sp\u00ednac\u00edmu za\u0159\u00edzen\u00ed (jako je styka\u010d), aby se otev\u0159elo. <strong>RDC-PD<\/strong> (Proudov\u00fd chr\u00e1ni\u010d citliv\u00fd na stejnosm\u011brn\u00fd proud) je jednotka \u201ev\u0161e v jednom\u201c, kter\u00e1 zahrnuje detekci a mechanick\u00fd jisti\u010d\/vyp\u00edna\u010d v jednom pouzd\u0159e.<\/p>\n<p><strong>Ot\u00e1zka: Ovliv\u0148uje teplota prahovou hodnotu vybaven\u00ed 6 mA?<\/strong><br \/>\n<strong>A:<\/strong> M\u016f\u017ee. Extr\u00e9mn\u00ed teploty mohou zm\u011bnit permeabilitu materi\u00e1l\u016f sn\u00edmac\u00edho j\u00e1dra. Komponenty VIOX jsou navr\u017eeny s teplotn\u00ed kompenzac\u00ed, ale v\u017edy je nejlep\u0161\u00ed testovat v r\u00e1mci jmenovit\u00e9ho rozsahu okoln\u00ed teploty za\u0159\u00edzen\u00ed.<\/p>\n<\/div>\n<div class=\"simg-pop-btn\" style=\"top: 1842.7px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 1842.7px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 1886.7px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 1886.7px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 94.875px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 94.875px; left: 14px; display: none;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Electrician using Fluke 1664 FC to test EV charger 6mA DC leakage protection. If you\u2019ve installed a commercial EV charging station, simply powering it up and checking if it charges a car isn&#8217;t enough. The invisible risk in modern EV infrastructure is DC leakage current\u2014a phenomenon that can silently &#8220;blind&#8221; your upstream Type A RCDs, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":21296,"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-21295","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\/21295","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=21295"}],"version-history":[{"count":1,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/posts\/21295\/revisions"}],"predecessor-version":[{"id":21297,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/posts\/21295\/revisions\/21297"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/media\/21296"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/media?parent=21295"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/categories?post=21295"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/tags?post=21295"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}