{"id":20962,"date":"2025-12-24T08:46:51","date_gmt":"2025-12-24T00:46:51","guid":{"rendered":"https:\/\/viox.com\/?p=20962"},"modified":"2025-12-24T08:46:54","modified_gmt":"2025-12-24T00:46:54","slug":"cable-size-types-mm-awg-bs-conversion-guide","status":"publish","type":"post","link":"https:\/\/test.viox.com\/cs\/cable-size-types-mm-awg-bs-conversion-guide\/","title":{"rendered":"Pochopen\u00ed typ\u016f velikost\u00ed kabel\u016f | mm, mm2, B&amp;S, AWG"},"content":{"rendered":"<div class=\"product-intro\">\n<h2>\u00davod: Pro\u010d z\u00e1le\u017e\u00ed na velikosti kabelu<\/h2>\n<p>V\u00fdb\u011br spr\u00e1vn\u00e9 velikosti kabelu nen\u00ed jen in\u017een\u00fdrsk\u00e1 formalita \u2013 je to kritick\u00e9 bezpe\u010dnostn\u00ed rozhodnut\u00ed, kter\u00e9 ovliv\u0148uje ka\u017edou elektroinstalaci. A\u0165 u\u017e zapojujete obytnou budovu, navrhujete pr\u016fmyslov\u00e9 stroje nebo pl\u00e1nujete sol\u00e1rn\u00ed syst\u00e9m, pr\u016f\u0159ez vodi\u010d\u016f ur\u010duje, kolik proudu m\u016f\u017ee bezpe\u010dn\u011b prot\u00e9kat, jak velk\u00e9 budou ztr\u00e1ty nap\u011bt\u00ed na vzd\u00e1lenost a v kone\u010dn\u00e9m d\u016fsledku, zda bude v\u00e1\u0161 syst\u00e9m spolehliv\u011b fungovat, nebo se stane po\u017e\u00e1rn\u00edm rizikem.<\/p>\n<p>Elektrik\u00e1\u0159i po cel\u00e9m sv\u011bt\u011b pou\u017e\u00edvaj\u00ed r\u016fzn\u00e9 m\u011b\u0159ic\u00ed syst\u00e9my: metrick\u00fd <strong>\u010dtvere\u010dn\u00ed milimetr (mm\u00b2)<\/strong> b\u011b\u017en\u00fd v Evrop\u011b a Asii, <strong>American Wire Gauge (AWG)<\/strong> standard v Severn\u00ed Americe a <strong>British Standard (B&amp;S)<\/strong> syst\u00e9m pou\u017e\u00edvan\u00fd ve star\u0161\u00edch instalac\u00edch a specifick\u00fdch aplikac\u00edch. Z\u00e1m\u011bna mezi t\u011bmito syst\u00e9my m\u016f\u017ee v\u00e9st k nebezpe\u010dn\u00e9mu poddimenzov\u00e1n\u00ed nebo n\u00e1kladn\u00e9mu p\u0159edimenzov\u00e1n\u00ed. Tato p\u0159\u00edru\u010dka se prosek\u00e1v\u00e1 slo\u017eitost\u00ed a poskytuje jasn\u00e1 vysv\u011btlen\u00ed, praktick\u00e9 p\u0159evodn\u00ed tabulky a systematick\u00fd p\u0159\u00edstup k dimenzov\u00e1n\u00ed kabel\u016f, kter\u00fd spl\u0148uje mezin\u00e1rodn\u00ed normy, jako jsou IEC 60228, NEC kapitola 9 a BS 7211.<\/p>\n<p>Pochopen\u00edm typ\u016f velikost\u00ed kabel\u016f budete moci \u010dinit informovan\u00e1 rozhodnut\u00ed, kter\u00e1 vyv\u00e1\u017e\u00ed bezpe\u010dnost, \u00fa\u010dinnost a n\u00e1klady \u2013 a\u0165 u\u017e vym\u011b\u0148ujete po\u0161kozen\u00fd \u00fasek, roz\u0161i\u0159ujete obvod nebo navrhujete od za\u010d\u00e1tku.<\/p>\n<h2>Milimetrov\u00fd (mm) a \u010dtvere\u010dn\u00ed milimetrov\u00fd (mm\u00b2) syst\u00e9m<\/h2>\n<p>Metrick\u00fd syst\u00e9m m\u011b\u0159\u00ed velikost kabelu dv\u011bma souvisej\u00edc\u00edmi, ale odli\u0161n\u00fdmi zp\u016fsoby: <strong>milimetr (mm)<\/strong> pro pr\u016fm\u011br a <strong>\u010dtvere\u010dn\u00ed milimetr (mm\u00b2)<\/strong> pro pr\u016f\u0159ez. Zat\u00edmco mm ud\u00e1v\u00e1 fyzickou \u0161\u00ed\u0159ku vodi\u010de, mm\u00b2 ud\u00e1v\u00e1, kolik m\u011bdi je skute\u010dn\u011b k dispozici pro veden\u00ed proudu \u2013 co\u017e z n\u011bj \u010din\u00ed d\u016fle\u017eit\u011bj\u0161\u00ed specifikaci pro elektrick\u00fd n\u00e1vrh.<\/p>\n<h3>Pro\u010d na mm\u00b2 z\u00e1le\u017e\u00ed v\u00edce ne\u017e na pr\u016fm\u011bru<\/h3>\n<p>P\u0159edstavte si vodu proud\u00edc\u00ed potrub\u00edm: z\u00e1le\u017e\u00ed na pr\u016fm\u011bru potrub\u00ed (mm), ale to, co skute\u010dn\u011b ur\u010duje pr\u016ftok, je vnit\u0159n\u00ed plocha (mm\u00b2). Podobn\u011b z\u00e1vis\u00ed proudov\u00e1 zat\u00ed\u017eitelnost kabelu p\u0159edev\u0161\u00edm na jeho pr\u016f\u0159ezu, nejen na jeho pr\u016fm\u011bru. Dva kabely se stejn\u00fdm pr\u016fm\u011brem mohou m\u00edt r\u016fzn\u00e9 plochy, pokud jeden pou\u017e\u00edv\u00e1 plnou m\u011b\u010f a druh\u00fd pou\u017e\u00edv\u00e1 lankov\u00e9 vodi\u010de se vzduchov\u00fdmi mezerami.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/cable-cross-section-technical-diagram.webp\" alt=\"Technical diagram of cable cross-section showing conductor diameter and insulation layers\" \/><figcaption style=\"font-style: italic; margin-top: 8px;\">Obr\u00e1zek 1: Technick\u00fd rozbor pr\u016f\u0159ezu kabelu, vizu\u00e1ln\u011b rozli\u0161uj\u00edc\u00ed pr\u016fm\u011br vodi\u010de (mm) a skute\u010dn\u00fd pr\u016f\u0159ez m\u011bdi (mm\u00b2).<\/figcaption><\/figure>\n<h3>Standardn\u00ed velikosti IEC 60228<\/h3>\n<p>Mezin\u00e1rodn\u00ed standard <strong>IEC 60228:2023<\/strong> definuje jmenovit\u00e9 pr\u016f\u0159ezy vodi\u010d\u016f pro izolovan\u00e9 kabely. Tyto hodnoty se pohybuj\u00ed od 0,5 mm\u00b2 pro mal\u00e9 elektronick\u00e9 aplikace a\u017e po 3 500 mm\u00b2 pro vysokonap\u011b\u0165ov\u00e1 p\u0159enosov\u00e1 veden\u00ed. Pro v\u011bt\u0161inu budov a pr\u016fmyslov\u00fdch rozvod\u016f se setk\u00e1te s t\u011bmito b\u011b\u017en\u00fdmi velikostmi:<\/p>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left;\" border=\"1\" cellpadding=\"8\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th>Jmenovit\u00e1 plocha (mm\u00b2)<\/th>\n<th>Typick\u00e9 aplikace<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1,5 mm\u00b2<\/td>\n<td>Sv\u011bteln\u00e9 obvody, mal\u00e9 spot\u0159ebi\u010de<\/td>\n<\/tr>\n<tr>\n<td>2,5 mm\u00b2<\/td>\n<td>Z\u00e1suvky, obecn\u00e9 silov\u00e9 obvody<\/td>\n<\/tr>\n<tr>\n<td>4 mm\u00b2<\/td>\n<td>Kuchy\u0148sk\u00e9 obvody, v\u011bt\u0161\u00ed spot\u0159ebi\u010de<\/td>\n<\/tr>\n<tr>\n<td>6 mm\u00b2<\/td>\n<td>Obvody spor\u00e1k\u016f, klimatizace<\/td>\n<\/tr>\n<tr>\n<td>10 mm\u00b2<\/td>\n<td>Podru\u017en\u00e9 rozvody, v\u011bt\u0161\u00ed za\u0159\u00edzen\u00ed<\/td>\n<\/tr>\n<tr>\n<td>16 mm\u00b2<\/td>\n<td>T\u0159\u00edf\u00e1zov\u00e9 stroje, komer\u010dn\u00ed rozvody<\/td>\n<\/tr>\n<tr>\n<td>25 mm\u00b2<\/td>\n<td>Pr\u016fmyslov\u00e9 motory, hlavn\u00ed stoupa\u010dky<\/td>\n<\/tr>\n<tr>\n<td>35 mm\u00b2 a v\u00edce<\/td>\n<td>Rozvod energie, p\u0159ipojen\u00ed rozvoden<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Kl\u00ed\u010dov\u00e9 vlastnosti metrick\u00e9ho syst\u00e9mu<\/h3>\n<ul>\n<li><strong>Line\u00e1rn\u00ed stupnice<\/strong>: Zdvojn\u00e1soben\u00ed hodnoty mm\u00b2 zdvojn\u00e1sobuje plochu vodi\u010de a zhruba zdvojn\u00e1sobuje proudovou zat\u00ed\u017eitelnost.<\/li>\n<li><strong>Standardizovan\u00e9 kroky<\/strong>: V\u00fdrobci vyr\u00e1b\u011bj\u00ed kabely v p\u0159eddefinovan\u00fdch jmenovit\u00fdch velikostech, co\u017e zaji\u0161\u0165uje kompatibilitu mezi dodavateli.<\/li>\n<li><strong>Definice zalo\u017een\u00e1 na odporu<\/strong>: Podle IEC 60228 mus\u00ed kabel \u201c2,5 mm\u00b2\u201d spl\u0148ovat maxim\u00e1ln\u00ed odpor na kilometr (typicky 7,41 \u03a9\/km pro m\u011b\u010f p\u0159i 20 \u00b0C), nejen fyzick\u00fd rozm\u011br. To zaru\u010duje konzistentn\u00ed elektrick\u00fd v\u00fdkon.<\/li>\n<\/ul>\n<h3>Kdy se m\u016f\u017eete setkat s \u201cmm\u201d m\u00edsto \u201cmm\u00b2\u201d<\/h3>\n<p>V n\u011bkter\u00fdch kontextech \u2013 zejm\u00e9na u automobilov\u00fdch nebo bateriov\u00fdch kabel\u016f \u2013 se m\u016f\u017eete setkat s velikostmi jako \u201c6mm auto kabel\u201d. To obvykle odkazuje na <strong>celkov\u00fd vn\u011bj\u0161\u00ed pr\u016fm\u011br v\u010detn\u011b izolace<\/strong>, nikoli na pr\u016f\u0159ez vodi\u010de. V\u017edy zkontrolujte skute\u010dn\u00fd pr\u016f\u0159ez m\u011bdi pro v\u00fdpo\u010dty proudu.<\/p>\n<h2>Syst\u00e9m American Wire Gauge (AWG)<\/h2>\n<p>V cel\u00fdch Spojen\u00fdch st\u00e1tech, Kanad\u011b a velk\u00e9 \u010d\u00e1sti Severn\u00ed Ameriky se velikost elektrick\u00fdch kabel\u016f \u0159\u00edd\u00ed <strong>American Wire Gauge (AWG)<\/strong> syst\u00e9mem \u2013 logaritmickou stupnic\u00ed, kde v\u011bt\u0161\u00ed \u010d\u00edsla znamenaj\u00ed ten\u010d\u00ed dr\u00e1ty. Na rozd\u00edl od p\u0159\u00edm\u00e9ho m\u011b\u0159en\u00ed plochy v metrick\u00e9m syst\u00e9mu poch\u00e1zej\u00ed \u010d\u00edsla AWG z postup\u016f ta\u017een\u00ed dr\u00e1tu v 19. stolet\u00ed, co\u017e vytv\u00e1\u0159\u00ed neintuitivn\u00ed, ale p\u0159esn\u00fd standard, kter\u00fd elektrik\u00e1\u0159i pou\u017e\u00edvaj\u00ed po generace.<\/p>\n<h3>Jak funguj\u00ed \u010d\u00edsla AWG: Inverzn\u00ed stupnice<\/h3>\n<p>Prvn\u00ed v\u011bc, kterou je t\u0159eba pochopit o AWG, je jeho inverzn\u00ed vztah: <strong>AWG 14 je siln\u011bj\u0161\u00ed ne\u017e AWG 20<\/strong>. To vych\u00e1z\u00ed z historick\u00e9 definice, kde \u201cgauge\u201d odkazoval na to, kolikr\u00e1t byl dr\u00e1t prota\u017een zmen\u0161ovac\u00ed matric\u00ed. Dr\u00e1t o pr\u016fm\u011bru 20 pro\u0161el 20 tahy, tak\u017ee je ten\u010d\u00ed ne\u017e dr\u00e1t o pr\u016fm\u011bru 10, kter\u00fd vy\u017eadoval pouze 10 tah\u016f.<\/p>\n<p>Dv\u011b praktick\u00e1 pravidla pom\u00e1haj\u00ed orientovat se ve stupnici:<\/p>\n<ol>\n<li><strong>Sn\u00ed\u017een\u00ed o 3, zdvojn\u00e1soben\u00ed plochy<\/strong>: P\u0159echod z AWG 14 na AWG 11 zhruba zdvojn\u00e1sobuje pr\u016f\u0159ez a proudovou zat\u00ed\u017eitelnost.<\/li>\n<li><strong>Sn\u00ed\u017een\u00ed o 6, zdvojn\u00e1soben\u00ed pr\u016fm\u011bru<\/strong>: P\u0159echod z AWG 12 na AWG 6 p\u0159ibli\u017en\u011b zdvojn\u00e1sobuje fyzickou \u0161\u00ed\u0159ku.<\/li>\n<\/ol>\n<h3>Velikosti AWG a jmenovit\u00e9 proudy<\/h3>\n<p>N\u00ed\u017ee je uvedena referen\u010dn\u00ed tabulka zobrazuj\u00edc\u00ed b\u011b\u017en\u00e9 velikosti AWG s jejich metrick\u00fdmi ekvivalenty a typick\u00fdmi jmenovit\u00fdmi proudy. V\u0161imn\u011bte si, \u017ee skute\u010dn\u00e1 proudov\u00e1 zat\u00ed\u017eitelnost z\u00e1vis\u00ed na teplotn\u00ed odolnosti izolace, instala\u010dn\u00edm prost\u0159ed\u00ed (voln\u00fd vzduch vs. potrub\u00ed) a m\u00edstn\u00edch p\u0159edpisech, jako je <strong>N\u00e1rodn\u00ed elektrotechnick\u00fd p\u0159edpis (NEC)<\/strong>.<\/p>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left;\" border=\"1\" cellpadding=\"8\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th>Velikost AWG<\/th>\n<th>Pr\u016fm\u011br (mm)<\/th>\n<th>Pr\u016f\u0159ez (mm\u00b2)<\/th>\n<th>Jmenovit\u00fd proud NEC (60\u00b0C Cu)<\/th>\n<th>Jmenovit\u00fd proud ve voln\u00e9m vzduchu (90\u00b0C Cu)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>14 AWG<\/td>\n<td>1.63<\/td>\n<td>2.08<\/td>\n<td>15 A<\/td>\n<td>32 A<\/td>\n<\/tr>\n<tr>\n<td>12 AWG<\/td>\n<td>2.05<\/td>\n<td>3.31<\/td>\n<td>20 A<\/td>\n<td>41 A<\/td>\n<\/tr>\n<tr>\n<td>10 AWG<\/td>\n<td>2.59<\/td>\n<td>5.26<\/td>\n<td>30 A<\/td>\n<td>55 A<\/td>\n<\/tr>\n<tr>\n<td>8 AWG<\/td>\n<td>3.26<\/td>\n<td>8.37<\/td>\n<td>40 A<\/td>\n<td>73 A<\/td>\n<\/tr>\n<tr>\n<td>6 AWG<\/td>\n<td>4.12<\/td>\n<td>13.30<\/td>\n<td>55 A<\/td>\n<td>101 A<\/td>\n<\/tr>\n<tr>\n<td>4 AWG<\/td>\n<td>5.19<\/td>\n<td>21.15<\/td>\n<td>70 A<\/td>\n<td>135 A<\/td>\n<\/tr>\n<tr>\n<td>2 AWG<\/td>\n<td>6.54<\/td>\n<td>33.62<\/td>\n<td>95 A<\/td>\n<td>181 A<\/td>\n<\/tr>\n<tr>\n<td>1\/0 AWG<\/td>\n<td>8.25<\/td>\n<td>53.49<\/td>\n<td>125 A<\/td>\n<td>245 A<\/td>\n<\/tr>\n<tr>\n<td>4\/0 AWG<\/td>\n<td>11.68<\/td>\n<td>107.22<\/td>\n<td>195 A<\/td>\n<td>380 A<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Za hranicemi AWG: kcmil a MCM<\/h3>\n<p>Pro vodi\u010de v\u011bt\u0161\u00ed ne\u017e 4\/0 AWG (0000) se syst\u00e9m p\u0159ep\u00edn\u00e1 na <strong>tis\u00edce kruhov\u00fdch mil (kcmil nebo MCM)<\/strong>. Jeden kruhov\u00fd mil je plocha kruhu o pr\u016fm\u011bru jednoho milu (0,001 palce). Mezi b\u011b\u017en\u00e9 velikosti kcmil pat\u0159\u00ed 250 kcmil, 500 kcmil a 750 kcmil, kter\u00e9 se pou\u017e\u00edvaj\u00ed pro servisn\u00ed vstupy, pr\u016fmyslov\u00e9 nap\u00e1je\u010de a aplikace s vysok\u00fdm proudem.<\/p>\n<h3>Pro\u010d AWG p\u0159etrv\u00e1v\u00e1 v Severn\u00ed Americe<\/h3>\n<p>Navzdory glob\u00e1ln\u00edmu posunu sm\u011brem k metrick\u00fdm norm\u00e1m z\u016fst\u00e1v\u00e1 AWG hluboce zako\u0159en\u011bno v severoamerick\u00e9 elektrotechnick\u00e9 praxi. Tabulky NEC, katalogy v\u00fdrobc\u016f a odborn\u00e9 \u0161kolen\u00ed pou\u017e\u00edvaj\u00ed AWG, co\u017e vytv\u00e1\u0159\u00ed siln\u00fd s\u00ed\u0165ov\u00fd efekt. P\u0159i pr\u00e1ci se st\u00e1vaj\u00edc\u00edmi budovami nebo za\u0159\u00edzen\u00edm navr\u017een\u00fdm podle americk\u00fdch norem je porozum\u011bn\u00ed AWG nezbytn\u00e9.<\/p>\n<h2>Britsk\u00e1 norma (B&amp;S) a syst\u00e9m SWG<\/h2>\n<p>Ve Spojen\u00e9m kr\u00e1lovstv\u00ed, Austr\u00e1lii, na Nov\u00e9m Z\u00e9landu a v n\u011bkter\u00fdch zem\u00edch Commonwealthu se m\u016f\u017eete setkat se <strong>British Standard (B&amp;S)<\/strong> syst\u00e9mem \u2013 zn\u00e1m\u00fdm tak\u00e9 jako <strong>Standard Wire Gauge (SWG)<\/strong>. Historicky odli\u0161n\u00e1 od AWG, modern\u00ed elektrotechnick\u00e1 praxe se do zna\u010dn\u00e9 m\u00edry sbl\u00ed\u017eila, tak\u017ee B&amp;S a AWG jsou funk\u010dn\u011b identick\u00e9 pro v\u011bt\u0161inu velikost\u00ed kabel\u016f. Porozum\u011bn\u00ed tomuto syst\u00e9mu je v\u0161ak i nad\u00e1le d\u016fle\u017eit\u00e9 pro pr\u00e1ci se star\u0161\u00edmi instalacemi, automobilovou kabel\u00e1\u017e\u00ed a specifick\u00fdmi pr\u016fmyslov\u00fdmi aplikacemi.<\/p>\n<h3>B&amp;S vs. AWG: Stejn\u00e1 stupnice, jin\u00fd n\u00e1zev<\/h3>\n<p>M\u011b\u0159idlo Brown &amp; Sharpe (B&amp;S) bylo zavedeno v roce 1857 pro m\u011b\u0159en\u00ed plechu a ne\u017eelezn\u00fdch dr\u00e1t\u016f. Postupem \u010dasu se stalo standardem pro elektrick\u00e9 dr\u00e1ty v mnoha anglicky mluv\u00edc\u00edch zem\u00edch a nakonec se vyvinulo v to, co Severn\u00ed Amerika naz\u00fdv\u00e1 AWG. Dnes, <strong>6 B&amp;S se rovn\u00e1 6 AWG<\/strong> v pr\u016f\u0159ezov\u00e9 plo\u0161e a elektrick\u00fdch vlastnostech.<\/p>\n<p>Kde n\u011bkdy doch\u00e1z\u00ed k nejasnostem:<\/p>\n<ul>\n<li><strong>Star\u0161\u00ed dokumentace<\/strong>: Star\u0161\u00ed britsk\u00e9 elektrotechnick\u00e9 v\u00fdkresy mohou specifikovat \u201cB&amp;S\u201d sp\u00ed\u0161e ne\u017e \u201cAWG\u201d.\u201d<\/li>\n<li><strong>Automobilov\u00e9\/n\u00e1mo\u0159n\u00ed kabely<\/strong>: V Austr\u00e1lii a na Nov\u00e9m Z\u00e9landu jsou kabely bateri\u00ed a start\u00e9r\u016f \u010dasto ozna\u010deny velikostmi B&amp;S.<\/li>\n<li><strong>Region\u00e1ln\u00ed preference<\/strong>: N\u011bkte\u0159\u00ed dodavatel\u00e9 pou\u017e\u00edvaj\u00ed \u201cB&amp;S\u201d k odli\u0161en\u00ed produkt\u016f ur\u010den\u00fdch pro trhy obezn\u00e1men\u00e9 s touto terminologi\u00ed.<\/li>\n<\/ul>\n<h3>Standard Wire Gauge (SWG) vs. B&amp;S<\/h3>\n<p>Technicky je SWG samostatn\u00e1 britsk\u00e1 norma pro pr\u016fm\u011bry dr\u00e1t\u016f, ale v elektrotechnick\u00fdch souvislostech se \u201cB&amp;S\u201d a \u201cSWG\u201d \u010dasto pou\u017e\u00edvaj\u00ed zam\u011bniteln\u011b. Kl\u00ed\u010dov\u00fd bod: oba se \u0159\u00edd\u00ed stejn\u00fdm inverzn\u00edm principem, kdy se \u010d\u00edslo m\u011b\u0159idla zvy\u0161uje s t\u00edm, jak se tlou\u0161\u0165ka dr\u00e1tu zmen\u0161uje.<\/p>\n<h3>B\u011b\u017en\u00e9 ekvivalenty B&amp;S\/AWG<\/h3>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left;\" border=\"1\" cellpadding=\"8\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th>Velikost B&amp;S<\/th>\n<th>Ekvivalent AWG<\/th>\n<th>P\u0159ibl. pr\u016f\u0159ez (mm\u00b2)<\/th>\n<th>Typick\u00e9 pou\u017eit\u00ed<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>000 B&amp;S (3\/0)<\/td>\n<td>000 AWG (3\/0)<\/td>\n<td>85,0 mm\u00b2<\/td>\n<td>Siln\u00e1 distribuce energie<\/td>\n<\/tr>\n<tr>\n<td>0 B&amp;S (1\/0)<\/td>\n<td>0 AWG (1\/0)<\/td>\n<td>53,5 mm\u00b2<\/td>\n<td>Servisn\u00ed vstup, velk\u00e9 motory<\/td>\n<\/tr>\n<tr>\n<td>2 B&amp;S<\/td>\n<td>2 AWG<\/td>\n<td>33,6 mm\u00b2<\/td>\n<td>Pr\u016fmyslov\u00e9 nap\u00e1je\u010de<\/td>\n<\/tr>\n<tr>\n<td>6 B&amp;S<\/td>\n<td>6 AWG<\/td>\n<td>13,3 mm\u00b2<\/td>\n<td>D\u00edl\u010d\u00ed obvody, stroje<\/td>\n<\/tr>\n<tr>\n<td>10 B&amp;S<\/td>\n<td>10 AWG<\/td>\n<td>5,3 mm\u00b2<\/td>\n<td>Obvody spot\u0159ebi\u010d\u016f, osv\u011btlen\u00ed<\/td>\n<\/tr>\n<tr>\n<td>12 B&amp;S<\/td>\n<td>12 AWG<\/td>\n<td>3,3 mm\u00b2<\/td>\n<td>B\u011b\u017en\u00e9 z\u00e1suvky<\/td>\n<\/tr>\n<tr>\n<td>14 B&amp;S<\/td>\n<td>14 AWG<\/td>\n<td>2,1 mm\u00b2<\/td>\n<td>Sv\u011bteln\u00e9 obvody<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Kdy na B&amp;S nejv\u00edce z\u00e1le\u017e\u00ed<\/h3>\n<ol>\n<li><strong>DC Syst\u00e9my<\/strong>: Automobilov\u00e9, sol\u00e1rn\u00ed a n\u00e1mo\u0159n\u00ed DC rozvody \u010dasto pou\u017e\u00edvaj\u00ed dimenzov\u00e1n\u00ed B&amp;S, zejm\u00e9na v zem\u00edch Commonwealthu.<\/li>\n<li><strong>V\u00fdpo\u010dty \u00fabytku nap\u011bt\u00ed<\/strong>: Proto\u017ee jsou DC syst\u00e9my citliv\u00e9 na \u00fabytek nap\u011bt\u00ed, je v\u00fdb\u011br spr\u00e1vn\u00e9 velikosti B&amp;S kritick\u00fd pro v\u00fdkon.<\/li>\n<li><strong>N\u00e1hradn\u00ed pr\u00e1ce<\/strong>: P\u0159i \u00fadr\u017eb\u011b star\u0161\u00edch za\u0159\u00edzen\u00ed navr\u017een\u00fdch Brity budete muset dodr\u017eet p\u016fvodn\u00ed specifikaci B&amp;S.<\/li>\n<\/ol>\n<h3>Celkov\u00fd obraz: Jeden glob\u00e1ln\u00ed jazyk<\/h3>\n<p>I kdy\u017e se n\u00e1zvy li\u0161\u00ed, z\u00e1kladn\u00ed m\u011b\u0159en\u00ed jsou stejn\u00e1. A\u0165 u\u017e vid\u00edte \u201c6 AWG\u201d, \u201c6 B&amp;S\u201d nebo \u201c13,3 mm\u00b2\u201d, d\u00edv\u00e1te se na stejnou vodivost. Probl\u00e9m spo\u010d\u00edv\u00e1 v rozpozn\u00e1n\u00ed t\u011bchto ekvivalent\u016f a pou\u017eit\u00ed p\u0159\u00edslu\u0161n\u00fdch m\u00edstn\u00edch norem.<\/p>\n<h2>Srovn\u00e1vac\u00ed tabulka: mm\u00b2 vs AWG vs B&amp;S<\/h2>\n<p>Rychl\u00fd p\u0159evod mezi t\u0159emi hlavn\u00edmi syst\u00e9my dimenzov\u00e1n\u00ed kabel\u016f na z\u00e1klad\u011b mezin\u00e1rodn\u00edch norem (IEC 60228, ASTM B258, BS 7211). Proudov\u00e9 zat\u00ed\u017eitelnosti jsou pro m\u011bd\u011bn\u00e9 vodi\u010de ve voln\u00e9m vzduchu s izolac\u00ed 90 \u00b0C.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/cable-size-conversion-chart.webp\" alt=\"Comparison chart showing cable size conversion between mm\u00b2, AWG, and B&amp;S systems\" \/><figcaption style=\"font-style: italic; margin-top: 8px;\">Obr\u00e1zek 2: Komplexn\u00ed tabulka pro p\u0159evod velikost\u00ed kabel\u016f porovn\u00e1vaj\u00edc\u00ed metrick\u00e9 (mm\u00b2), AWG a B&amp;S standardy s proudovou zat\u00ed\u017eitelnost\u00ed.<\/figcaption><\/figure>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left;\" border=\"1\" cellpadding=\"8\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th>Metrick\u00e9 (mm\u00b2)<\/th>\n<th>Velikost AWG<\/th>\n<th>Velikost B&amp;S<\/th>\n<th>Pr\u016fm\u011br (mm)<\/th>\n<th>P\u0159ibli\u017en\u00fd proud (90 \u00b0C Cu)<\/th>\n<th>B\u011b\u017en\u00e9 aplikace<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>0,5 mm\u00b2<\/td>\n<td>20 AWG<\/td>\n<td>20 B&amp;S<\/td>\n<td>0,81 mm<\/td>\n<td>11 A<\/td>\n<td>Elektronika, sign\u00e1ln\u00ed rozvody<\/td>\n<\/tr>\n<tr>\n<td>0,75 mm\u00b2<\/td>\n<td>18 AWG<\/td>\n<td>18 B&amp;S<\/td>\n<td>1,02 mm<\/td>\n<td>16 A<\/td>\n<td>Obvody s n\u00edzk\u00fdm v\u00fdkonem, osv\u011btlen\u00ed<\/td>\n<\/tr>\n<tr>\n<td>1,0 mm\u00b2<\/td>\n<td>17 AWG<\/td>\n<td>17 B&amp;S<\/td>\n<td>1,15 mm<\/td>\n<td>19 A<\/td>\n<td>\u0158\u00eddic\u00ed obvody, mal\u00e9 spot\u0159ebi\u010de<\/td>\n<\/tr>\n<tr>\n<td>1,5 mm\u00b2<\/td>\n<td>16 AWG<\/td>\n<td>16 B&amp;S<\/td>\n<td>1,29 mm<\/td>\n<td>22 A<\/td>\n<td>Obvody osv\u011btlen\u00ed, v\u0161eobecn\u00e9 pou\u017eit\u00ed<\/td>\n<\/tr>\n<tr>\n<td>2,5 mm\u00b2<\/td>\n<td>14 AWG<\/td>\n<td>14 B&amp;S<\/td>\n<td>1,63 mm<\/td>\n<td>32 A<\/td>\n<td>Z\u00e1suvky, silov\u00e9 obvody<\/td>\n<\/tr>\n<tr>\n<td>4,0 mm\u00b2<\/td>\n<td>12 AWG<\/td>\n<td>12 B&amp;S<\/td>\n<td>2,05 mm<\/td>\n<td>41 A<\/td>\n<td>Kuchy\u0148sk\u00e9 obvody, v\u011bt\u0161\u00ed spot\u0159ebi\u010de<\/td>\n<\/tr>\n<tr>\n<td>6,0 mm\u00b2<\/td>\n<td>10 AWG<\/td>\n<td>10 B&amp;S<\/td>\n<td>2,59 mm<\/td>\n<td>55 A<\/td>\n<td>Klimatizace, obvody spor\u00e1k\u016f<\/td>\n<\/tr>\n<tr>\n<td>10 mm\u00b2<\/td>\n<td>8 AWG<\/td>\n<td>8 B&amp;S<\/td>\n<td>3,26 mm<\/td>\n<td>73 A<\/td>\n<td>Podru\u017en\u00e9 rozvody, stroje<\/td>\n<\/tr>\n<tr>\n<td>16 mm\u00b2<\/td>\n<td>6 AWG<\/td>\n<td>6 B&amp;S<\/td>\n<td>4,12 mm<\/td>\n<td>101 A<\/td>\n<td>T\u0159\u00edf\u00e1zov\u00e9 za\u0159\u00edzen\u00ed, komer\u010dn\u00ed<\/td>\n<\/tr>\n<tr>\n<td>25 mm\u00b2<\/td>\n<td>4 AWG<\/td>\n<td>4 B&amp;S<\/td>\n<td>5,19 mm<\/td>\n<td>135 A<\/td>\n<td>Pr\u016fmyslov\u00e9 motory, hlavn\u00ed stoupa\u010dky<\/td>\n<\/tr>\n<tr>\n<td>35 mm\u00b2<\/td>\n<td>2 AWG<\/td>\n<td>2 B&amp;S<\/td>\n<td>6,54 mm<\/td>\n<td>181 A<\/td>\n<td>T\u011b\u017ek\u00e9 stroje, rozvad\u011b\u010de<\/td>\n<\/tr>\n<tr>\n<td>50 mm\u00b2<\/td>\n<td>1\/0 AWG<\/td>\n<td>0 B&amp;S<\/td>\n<td>8,25 mm<\/td>\n<td>245 A<\/td>\n<td>P\u0159\u00edpojka, velk\u00e9 p\u0159\u00edvody<\/td>\n<\/tr>\n<tr>\n<td>70 mm\u00b2<\/td>\n<td>2\/0 AWG<\/td>\n<td>00 B&amp;S<\/td>\n<td>9,27 mm<\/td>\n<td>283 A<\/td>\n<td>Pr\u016fmyslov\u00e9 aplikace s vysok\u00fdm proudem<\/td>\n<\/tr>\n<tr>\n<td>95 mm\u00b2<\/td>\n<td>3\/0 AWG<\/td>\n<td>000 B&amp;S<\/td>\n<td>10,40 mm<\/td>\n<td>328 A<\/td>\n<td>Distribuce energie, rozvodny<\/td>\n<\/tr>\n<tr>\n<td>120 mm\u00b2<\/td>\n<td>4\/0 AWG<\/td>\n<td>0000 B&amp;S<\/td>\n<td>11,68 mm<\/td>\n<td>380 A<\/td>\n<td>Aplikace s velmi vysok\u00fdm proudem<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Kl\u00ed\u010dov\u00e9 body<\/h3>\n<ul>\n<li><strong>Metrick\u00e9 (mm\u00b2)<\/strong>: Pr\u016f\u0159ez, prim\u00e1rn\u00ed v zem\u00edch IEC<\/li>\n<li><strong>AWG\/B&amp;S<\/strong>: Inverzn\u00ed stupnice (men\u0161\u00ed \u010d\u00edslo = siln\u011bj\u0161\u00ed vodi\u010d)<\/li>\n<li><strong>P\u0159evod<\/strong>: Pro bezpe\u010dnost v\u017edy volte nejbli\u017e\u0161\u00ed v\u011bt\u0161\u00ed velikost<\/li>\n<li><strong>Aplikace<\/strong>: Typick\u00e9 pou\u017eit\u00ed pro ka\u017edou velikost<\/li>\n<\/ul>\n<p>M\u011bjte tuto tabulku po ruce pro mezin\u00e1rodn\u00ed za\u0159\u00edzen\u00ed nebo n\u00e1kup kabel\u016f.<\/p>\n<h2>Jak p\u0159ev\u00e1d\u011bt mezi syst\u00e9my velikost\u00ed kabel\u016f<\/h2>\n<p>P\u0159esn\u00fd p\u0159evod mezi mm\u00b2, AWG a B&amp;S zaji\u0161\u0165uje bezpe\u010dnost a shodu. Na\u0161e srovn\u00e1vac\u00ed tabulka poskytuje rychl\u00e9 vyhled\u00e1v\u00e1n\u00ed, ale pochopen\u00ed princip\u016f pom\u00e1h\u00e1 v okrajov\u00fdch p\u0159\u00edpadech.<\/p>\n<h3>Praktick\u00e9 metody p\u0159evodu<\/h3>\n<ol>\n<li><strong>Pou\u017eijte tabulku<\/strong>: Pro v\u011bt\u0161inu prac\u00ed v ter\u00e9nu nab\u00edz\u00ed na\u0161e srovn\u00e1vac\u00ed tabulka dostate\u010dnou p\u0159esnost.<\/li>\n<li><strong>Online kalkula\u010dky<\/strong>: Webov\u00e9 str\u00e1nky jako RapidTables nebo Engineering ToolBox poskytuj\u00ed okam\u017eit\u00fd p\u0159evod.<\/li>\n<li><strong>Mobiln\u00ed aplikace<\/strong>: Aplikace pro elektrik\u00e1\u0159e \u010dasto zahrnuj\u00ed p\u0159evodn\u00edky pr\u016f\u0159ez\u016f vodi\u010d\u016f s reduk\u010dn\u00edmi faktory.<\/li>\n<li><strong>NEC Kapitola 9, Tabulka 8<\/strong>: Obsahuje p\u0159esn\u00e9 rozm\u011bry a plochy pro AWG a metrick\u00e9 velikosti.<\/li>\n<\/ol>\n<h3>Zlat\u00e9 pravidlo: Zaokrouhlujte nahoru, nikdy dol\u016f<\/h3>\n<p>Pokud p\u0159evod ud\u00e1v\u00e1 3,8 mm\u00b2 pro 12 AWG, nepou\u017e\u00edvejte 4,0 mm\u00b2 \u2013 pou\u017eijte <strong>6,0 mm\u00b2<\/strong> (dal\u0161\u00ed standardn\u00ed velikost nahoru). To kompenzuje v\u00fdrobn\u00ed tolerance, r\u016fzn\u00e9 materi\u00e1ly, podm\u00ednky instalace a \u00fabytek nap\u011bt\u00ed.<\/p>\n<h3>B\u011b\u017en\u00e9 sc\u00e9n\u00e1\u0159e p\u0159evodu<\/h3>\n<ul>\n<li><strong>Severoamerick\u00e9 na evropsk\u00e9<\/strong>: 10 AWG \u2248 5,26 mm\u00b2 \u2192 pou\u017eijte <strong>6,0 mm\u00b2<\/strong><\/li>\n<li><strong>Sol\u00e1rn\u00ed DC kabely<\/strong>: 6 AWG bateriov\u00fd kabel (13,3 mm\u00b2) \u2192 nejbli\u017e\u0161\u00ed metrick\u00fd je <strong>16 mm\u00b2<\/strong> (zkontrolujte \u00fabytek nap\u011bt\u00ed)<\/li>\n<li><strong>Star\u0161\u00ed britsk\u00e9 v\u00fdkresy<\/strong>: 4\/0 B&amp;S = 4\/0 AWG (107,22 mm\u00b2) \u2192 modern\u00ed ekvivalent <strong>120 mm\u00b2<\/strong><\/li>\n<\/ul>\n<h3>Kdy z\u00e1le\u017e\u00ed na p\u0159esn\u00e9m p\u0159evodu<\/h3>\n<ul>\n<li><strong>Svorkovnice<\/strong>: Fyzick\u00fd pr\u016fm\u011br mus\u00ed pasovat do konektor\u016f<\/li>\n<li><strong>V\u00fdpo\u010dty pln\u011bn\u00ed trubek<\/strong>: P\u0159esn\u00e1 plocha ur\u010duje po\u010det kabel\u016f<\/li>\n<li><strong>Shoda odporu<\/strong>: Paraleln\u00ed vodi\u010de pot\u0159ebuj\u00ed identick\u00fd odpor<\/li>\n<\/ul>\n<p>V t\u011bchto p\u0159\u00edpadech se \u0159i\u010fte datov\u00fdmi listy v\u00fdrobce, nikoli obecn\u00fdmi tabulkami.<\/p>\n<h2>V\u00fdb\u011br spr\u00e1vn\u00e9 velikosti kabelu: Kl\u00ed\u010dov\u00e9 faktory<\/h2>\n<p>Dimenzov\u00e1n\u00ed kabel\u016f vy\u017eaduje vyv\u00e1\u017een\u00ed elektrick\u00fdch po\u017eadavk\u016f, podm\u00ednek instalace a bezpe\u010dnostn\u00edch rezerv. Zva\u017ete tyto kl\u00ed\u010dov\u00e9 faktory:<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/cable-sizing-application-schematic.webp\" alt=\"Schematic diagram illustrating cable sizing for different electrical applications\" \/><figcaption style=\"font-style: italic; margin-top: 8px;\">Obr\u00e1zek 3: Aplika\u010dn\u00ed sch\u00e9ma ilustruj\u00edc\u00ed vhodn\u00e9 dimenzov\u00e1n\u00ed kabel\u016f pro reziden\u010dn\u00ed, komer\u010dn\u00ed a pr\u016fmyslov\u00e9 sc\u00e9n\u00e1\u0159e.<\/figcaption><\/figure>\n<h3>1. Proudov\u00e1 zat\u00ed\u017eitelnost (Ampacita)<\/h3>\n<p>Vypo\u010d\u00edtejte n\u00e1vrhov\u00fd proud (I_b) z v\u00fdkonu z\u00e1t\u011b\u017ee, nap\u011bt\u00ed a \u00fa\u010din\u00edku. Aplikujte korek\u010dn\u00ed faktory pro okoln\u00ed teplotu, seskupen\u00ed kabel\u016f, tepelnou izolaci a typ ochrann\u00e9ho za\u0159\u00edzen\u00ed pro ur\u010den\u00ed minim\u00e1ln\u00ed velikosti kabelu.<\/p>\n<h3>2. \u00dabytek nap\u011bt\u00ed<\/h3>\n<p>Omezte \u00fabytek na 3 % pro osv\u011btlen\u00ed, 5 % pro silov\u00e9 obvody (doporu\u010den\u00ed NEC). Vypo\u010d\u00edtejte pomoc\u00ed d\u00e9lky kabelu, odporu vodi\u010de a proudu z\u00e1t\u011b\u017ee. U dlouh\u00fdch tras \u010dasto \u00fabytek nap\u011bt\u00ed ur\u010duje velikost v\u00edce ne\u017e ampacita.<\/p>\n<h3>3. Zp\u016fsob instalace<\/h3>\n<ul>\n<li><strong>Voln\u00fd vzduch<\/strong>: Nejlep\u0161\u00ed chlazen\u00ed, nejvy\u0161\u0161\u00ed ampacita<\/li>\n<li><strong>Trubka\/li\u0161ta<\/strong>: Sn\u00ed\u017een\u00fd pr\u016ftok vzduchu, vy\u017eaduje sn\u00ed\u017een\u00ed<\/li>\n<li><strong>Ulo\u017eeno p\u0159\u00edmo do zem\u011b<\/strong>: Z\u00e1le\u017e\u00ed na tepeln\u00e9m odporu p\u016fdy<\/li>\n<li><strong>V izolaci<\/strong>: Pot\u0159eba v\u00fdznamn\u00e9ho sn\u00ed\u017een\u00ed<\/li>\n<\/ul>\n<h3>4. Podm\u00ednky prost\u0159ed\u00ed<\/h3>\n<p>Zva\u017ete teplotu, vlhkost, chemickou expozici a po\u017eadavky na mechanickou ochranu. Vyberte vhodnou izolaci (THWN, XLPE atd.) pro dan\u00e9 prost\u0159ed\u00ed.<\/p>\n<h3>5. Normy a p\u0159edpisy<\/h3>\n<p>Dodr\u017eujte NEC (Severn\u00ed Amerika), IEC\/BS (mezin\u00e1rodn\u00ed) nebo m\u00edstn\u00ed p\u0159edpisy. Pou\u017e\u00edvejte standardn\u00ed tabulky pro v\u00fdpo\u010det proudov\u00e9 zat\u00ed\u017eitelnosti a \u00fabytku nap\u011bt\u00ed.<\/p>\n<h3>6. Budouc\u00ed roz\u0161\u00ed\u0159en\u00ed<\/h3>\n<p>M\u00edrn\u00e9 p\u0159edimenzov\u00e1n\u00ed m\u016f\u017ee u\u0161et\u0159it n\u00e1kladn\u00e9 v\u00fdm\u011bny, pokud se z\u00e1t\u011b\u017e pozd\u011bji zv\u00fd\u0161\u00ed.<\/p>\n<h3>7. Cena vs. v\u00fdkon<\/h3>\n<p>Vyva\u017ete n\u00e1klady na materi\u00e1l proti energetick\u00fdm ztr\u00e1t\u00e1m (I\u00b2R oh\u0159ev). Siln\u011bj\u0161\u00ed kabely stoj\u00ed v\u00edce dop\u0159edu, ale \u0161et\u0159\u00ed energii v pr\u016fb\u011bhu \u010dasu.<\/p>\n<p>Zv\u00e1\u017een\u00edm t\u011bchto faktor\u016f vyberete kabely, kter\u00e9 jsou bezpe\u010dn\u00e9, efektivn\u00ed a vyhovuj\u00edc\u00ed.<\/p>\n<p>Zapamatujte si tyto kl\u00ed\u010dov\u00e9 poznatky:<\/p>\n<ul>\n<li><strong>Bezpe\u010dnost na prvn\u00edm m\u00edst\u011b<\/strong>: P\u0159i p\u0159evodu mezi syst\u00e9my v\u017edy zaokrouhlujte nahoru<\/li>\n<li><strong>Standardy jsou d\u016fle\u017eit\u00e9<\/strong>: Dodr\u017eujte NEC, IEC nebo m\u00edstn\u00ed p\u0159edpisy podle pot\u0159eby<\/li>\n<li><strong>Zva\u017ete v\u0161echny faktory<\/strong>: Proud, \u00fabytek nap\u011bt\u00ed, prost\u0159ed\u00ed a budouc\u00ed pot\u0159eby<\/li>\n<li><strong>Ov\u011b\u0159te pomoc\u00ed dat<\/strong>: Pro kritick\u00e9 aplikace pou\u017e\u00edvejte specifikace v\u00fdrobce<\/li>\n<\/ul>\n<p>A\u0165 u\u017e pracujete na reziden\u010dn\u00edch rozvodech, pr\u016fmyslov\u00fdch stroj\u00edch nebo syst\u00e9mech obnoviteln\u00e9 energie, spr\u00e1vn\u00e9 dimenzov\u00e1n\u00ed kabel\u016f zabra\u0148uje poruch\u00e1m, \u0161et\u0159\u00ed energii a chr\u00e1n\u00ed \u017eivoty. Srovn\u00e1vac\u00ed tabulky a rozhodovac\u00ed r\u00e1mec, kter\u00e9 zde uv\u00e1d\u00edme, v\u00e1m umo\u017en\u00ed \u010dinit informovan\u00e1 rozhodnut\u00ed, kter\u00e1 spl\u0148uj\u00ed technick\u00e9 po\u017eadavky i soulad s p\u0159edpisy.<\/p>\n<p><em>Pro profesion\u00e1ln\u00ed elektrick\u00e9 komponenty navr\u017een\u00e9 tak, aby bezprobl\u00e9mov\u011b fungovaly se spr\u00e1vn\u011b dimenzovan\u00fdmi kabely, prozkoumejte produktovou \u0159adu VIOX Electric \u2013 kde se in\u017een\u00fdrsk\u00e1 p\u0159esnost snoub\u00ed s re\u00e1lnou spolehlivost\u00ed.<\/em><\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/industrial-electrical-control-panel-with-viox-logo.webp\" alt=\"Industrial electrical control panel with VIOX logo, showcasing professional-grade components\" \/><figcaption style=\"font-style: italic; margin-top: 8px;\">Obr\u00e1zek 4: Vysoce standardn\u00ed pr\u016fmyslov\u00fd elektrick\u00fd ovl\u00e1dac\u00ed panel s komponenty VIOX, demonstruj\u00edc\u00ed profesion\u00e1ln\u00ed spr\u00e1vu kabel\u016f.<\/figcaption><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Introduction: Why Cable Size Matters Selecting the correct cable size isn&#8217;t just an engineering formality\u2014it&#8217;s a critical safety decision that affects every electrical installation. Whether you&#8217;re wiring a residential building, designing industrial machinery, or planning a solar power system, the cross-sectional area of your conductors determines how much current can flow safely, how much voltage [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":20963,"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-20962","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\/20962","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=20962"}],"version-history":[{"count":1,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/posts\/20962\/revisions"}],"predecessor-version":[{"id":20964,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/posts\/20962\/revisions\/20964"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/media\/20963"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/media?parent=20962"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/categories?post=20962"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/tags?post=20962"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}