{"id":20187,"date":"2025-11-17T14:30:20","date_gmt":"2025-11-17T06:30:20","guid":{"rendered":"https:\/\/viox.com\/?p=20187"},"modified":"2025-11-17T14:30:22","modified_gmt":"2025-11-17T06:30:22","slug":"mccb-vs-iccb-comprehensive-guide","status":"publish","type":"post","link":"https:\/\/test.viox.com\/cs\/mccb-vs-iccb-comprehensive-guide\/","title":{"rendered":"Komplexn\u00ed technick\u00fd pr\u016fvodce: MCCB vs ICCB"},"content":{"rendered":"<div class=\"product-intro\">\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-20192\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/the-cascade-killer-lcw-rating-prevents-facility-wide-outages.webp\" alt=\"the cascade killer lcw rating prevents facility-wide outages\" width=\"800\" height=\"533\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/the-cascade-killer-lcw-rating-prevents-facility-wide-outages.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/the-cascade-killer-lcw-rating-prevents-facility-wide-outages-300x200.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/the-cascade-killer-lcw-rating-prevents-facility-wide-outages-768x512.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/the-cascade-killer-lcw-rating-prevents-facility-wide-outages-18x12.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/the-cascade-killer-lcw-rating-prevents-facility-wide-outages-600x400.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>Navrhujete hlavn\u00ed p\u0159\u00edchoz\u00ed jisti\u010d pro nov\u00fd v\u00fdrobn\u00ed z\u00e1vod o v\u00fdkonu 2 MW. Rozpo\u010det \u0159\u00edk\u00e1 MCCB \u2013 u\u0161et\u0159\u00ed 7 000 oproti ICCB. V\u00e1\u0161 instinkt \u0159\u00edk\u00e1, \u017ee je n\u011bco \u0161patn\u011b, ale nem\u016f\u017eete na to p\u0159ij\u00edt. Schv\u00e1l\u00edte MCCB.<\/p>\n<p>O \u0161est m\u011bs\u00edc\u016f pozd\u011bji: 2:47 r\u00e1no. Uvoln\u011bn\u00e9 spojen\u00ed v panelu 3B zp\u016fsob\u00ed obloukov\u00fd zkrat.<\/p>\n<p>Za 83 milisekund zhasne cel\u00fd z\u00e1vod.<\/p>\n<p>Nejen panel 3B. Nejen podru\u017en\u00e9 rozvody, kter\u00e9 jej nap\u00e1jej\u00ed. <em>Hlavn\u00ed<\/em> MCCB vypne a odpoj\u00ed nap\u00e1jen\u00ed v\u0161ech stroj\u016f, v\u0161ech po\u010d\u00edta\u010d\u016f, v\u0161ech procesn\u00edch \u0159\u00eddic\u00edch jednotek v budov\u011b. Ne\u017e doraz\u00ed \u00fadr\u017eba v 4:15 r\u00e1no, v\u00fdroba je zastavena na 90 minut. Do v\u00fdchodu slunce se d\u00edv\u00e1te na ztr\u00e1tu v\u00fdroby ve v\u00fd\u0161i 124 000, nouzov\u00e9 p\u0159es\u010dasy a znehodnocen\u00fd materi\u00e1l ve v\u00fdrob\u011b.<\/p>\n<p>Hlavn\u00ed p\u0159\u00ed\u010dina? V\u00e1\u0161 MCCB za 1 200 ud\u011blal p\u0159esn\u011b to, k \u010demu byl navr\u017een \u2013 okam\u017eit\u011b vypnout p\u0159i vysok\u00e9m poruchov\u00e9m proudu. To byl ten probl\u00e9m.<\/p>\n<p>Nem\u011bl \u017e\u00e1dnou <strong>jmenovitou hodnotu Icw<\/strong>\u2013 \u017e\u00e1dnou schopnost \u201cpo\u010dkat a sledovat\u201d, dokud poruchu nevy\u0159e\u0161\u00ed nejd\u0159\u00edve pod\u0159azen\u00fd jisti\u010d. V\u00edtejte v <strong>Kask\u00e1dov\u00e9m zabij\u00e1ku<\/strong> probl\u00e9mu. Nebo sp\u00ed\u0161e v jeho nedostatku.<\/p>\n<section id=\"real-difference\">\n<h2>Skute\u010dn\u00fd rozd\u00edl mezi MCCB a ICCB (nen\u00ed to vyp\u00ednac\u00ed schopnost)<\/h2>\n<p>Zeptejte se v\u011bt\u0161iny in\u017een\u00fdr\u016f na rozd\u00edl mezi MCCB a ICCB a \u0159eknou v\u00e1m o vyp\u00ednac\u00ed schopnosti \u2013 jmenovit\u00e9 hodnot\u011b Icu. \u201cMCCB dosahuj\u00ed vyp\u00ednac\u00ed schopnosti a\u017e 150 kA, ICCB je\u0161t\u011b v\u00edce.\u201d To je pravda. Ale to je \u0161patn\u00e1 specifikace, kterou byste se m\u011bli zab\u00fdvat.<\/p>\n<p>Skute\u010dn\u00fd rozd\u00edl? <strong>Kr\u00e1tkodob\u00fd v\u00fddr\u017en\u00fd proud (Icw).<\/strong><\/p>\n<p>Zde je to, co to znamen\u00e1.<\/p>\n<p>. <a href=\"https:\/\/test.viox.com\/cs\/mccb\/\"><strong>MCCB (jisti\u010d v lisovan\u00e9m pouzd\u0159e)<\/strong><\/a> m\u00e1 obvykle vysokou kone\u010dnou vyp\u00ednac\u00ed schopnost \u2013 dok\u00e1\u017ee p\u0159eru\u0161it masivn\u00ed poruchov\u00e9 proudy bez v\u00fdbuchu. M\u00e1 ale malou nebo \u017e\u00e1dnou jmenovitou hodnotu Icw. Kdy\u017e poruchov\u00fd proud p\u0159ekro\u010d\u00ed jeho okam\u017eit\u00e9 nastaven\u00ed vypnut\u00ed, <em>fungovalo,<\/em> okam\u017eit\u011b vypne. \u017d\u00e1dn\u00e9 zpo\u017ed\u011bn\u00ed. \u017d\u00e1dn\u00e9 \u010dek\u00e1n\u00ed, zda to nejd\u0159\u00edve zvl\u00e1dne pod\u0159azen\u00fd jisti\u010d.<\/p>\n<p>. <strong>ICCB (jisti\u010d s izolovan\u00fdm pouzdrem)<\/strong> m\u00e1 tak\u00e9 vysokou vyp\u00ednac\u00ed schopnost. Ale tady je z\u00e1sadn\u00ed rozd\u00edl: M\u00e1 v\u00fdznamnou jmenovitou hodnotu Icw \u2013 schopnost v\u00e9st masivn\u00ed poruchov\u00fd proud po ur\u010ditou dobu (obvykle 0,05 a\u017e 1 sekundu) <em>bez vypnut\u00ed a bez po\u0161kozen\u00ed<\/em>. P\u0159edstavte si to jako schopnost jisti\u010de zadr\u017eet dech pod vodou, zat\u00edmco pod\u0159azen\u00fd jisti\u010d d\u011bl\u00e1 svou pr\u00e1ci.<\/p>\n<p>Podle normy IEC 60947-2:2024 \u2013 normy, kter\u00e1 upravuje n\u00edzkonap\u011b\u0165ov\u00e9 jisti\u010de \u2013 se sv\u011bt jisti\u010d\u016f d\u011bl\u00ed na dva t\u00e1bory:<\/p>\n<ul>\n<li><strong>Kategorie A:<\/strong> \u017d\u00e1dn\u00e9 \u00famysln\u00e9 kr\u00e1tkodob\u00e9 zpo\u017ed\u011bn\u00ed. Mus\u00ed vypnout rychle. Zde \u017eij\u00ed MCCB.<\/li>\n<li><strong>Kategorie B:<\/strong> Navr\u017eeno pro selektivitu s \u00famyslnou kr\u00e1tkodobou v\u00fddr\u017e\u00ed. ICCB a <a href=\"https:\/\/test.viox.com\/cs\/complete-guide-to-air-circuit-breakers-acb\/\">Vzduchov\u00e9 jisti\u010de (ACB)<\/a> zde \u017eij\u00ed.<\/li>\n<\/ul>\n<p>Pro\u010d na tom z\u00e1le\u017e\u00ed? Proto\u017ee bez jmenovit\u00e9 hodnoty Icw nem\u016f\u017eete m\u00edt skute\u010dnou selektivitu. A bez selektivity m\u016f\u017ee porucha kdekoli ve va\u0161em z\u00e1vod\u011b vypnout v\u00e1\u0161 hlavn\u00ed jisti\u010d.<\/p>\n<p>Dovolte mi, abych v\u00e1m to popsal.<\/p>\n<p>V\u00e1\u0161 hlavn\u00ed p\u0159\u00edchoz\u00ed jisti\u010d ICCB m\u00e1 jmenovit\u00fd proud 630 A trvale, s Icw 42 kA po dobu 0,1 sekundy. Dojde k poru\u0161e na pod\u0159azen\u00e9m odbo\u010dkov\u00e9m obvodu, kter\u00e1 generuje zkratov\u00fd proud 18 kA. Odbo\u010dkov\u00fd MCCB zaznamen\u00e1 poruchu a vypne za 45 milisekund \u2013 hluboko v okn\u011b \u010dek\u00e1n\u00ed a sledov\u00e1n\u00ed ICCB 0,1 sekundy. ICCB vede tento proud 18 kA po dobu 45 ms bez probl\u00e9m\u016f, z\u016fstane sepnut\u00fd a v\u00e1\u0161 z\u00e1vod z\u016fstane nap\u00e1jen krom\u011b poruchov\u00e9ho obvodu. To je <strong>Kask\u00e1dov\u00e9m zabij\u00e1ku<\/strong> v pr\u00e1ci \u2013 jmenovit\u00e1 hodnota Icw, kter\u00e1 zabra\u0148uje kask\u00e1dov\u00fdm poruch\u00e1m.<\/p>\n<p>Nyn\u00ed vym\u011b\u0148te tento ICCB za MCCB v hlavn\u00ed pozici. Stejn\u00e1 porucha 18 kA na odbo\u010dce. Odbo\u010dkov\u00fd jisti\u010d se ji st\u00e1le sna\u017e\u00ed odstranit za 45 ms. Ale v\u00e1\u0161 hlavn\u00ed MCCB, bez jmenovit\u00e9 hodnoty Icw a bez \u010dasov\u00e9ho zpo\u017ed\u011bn\u00ed, vid\u00ed 18 kA, usoud\u00ed, \u017ee to p\u0159ekra\u010duje jeho okam\u017eitou prahovou hodnotu vypnut\u00ed, a vypne za 12 milisekund. Cel\u00fd z\u00e1vod zhasne. Odbo\u010dkov\u00fd jisti\u010d nikdy nedostane \u0161anci.<\/p>\n<p><strong>To je ten rozd\u00edl, kter\u00fd v\u00e1s st\u00e1l 124 000.<\/strong><\/p>\n<\/section>\n<section id=\"cascade-problem\">\n<h2>Pro\u010d MCCB vytv\u00e1\u0159ej\u00ed kask\u00e1dov\u00e9 poruchy (past okam\u017eit\u00e9ho vypnut\u00ed)<\/h2>\n<p>Zde je paradox, kter\u00e9mu in\u017een\u00fd\u0159i \u010del\u00ed: Rychlost je obvykle dobr\u00e1 v ochran\u011b obvod\u016f. \u010c\u00edm rychleji odstran\u00edte poruchu, t\u00edm men\u0161\u00ed po\u0161kozen\u00ed za\u0159\u00edzen\u00ed, t\u00edm bezpe\u010dn\u011bj\u0161\u00ed pro person\u00e1l. MCCB v tom vynikaj\u00ed \u2013 jsou navr\u017eeny tak, aby vypnuly <em>rychle<\/em> kdy\u017e dojde k poruch\u00e1m.<\/p>\n<p>Ale rychlost se st\u00e1v\u00e1 nev\u00fdhodou, kdy\u017e jste na vrcholu distribu\u010dn\u00ed hierarchie.<\/p>\n<p>Toto je <strong>Past okam\u017eit\u00e9ho vypnut\u00ed<\/strong>: V\u00e1\u0161 MCCB d\u011bl\u00e1 p\u0159esn\u011b to, k \u010demu byl navr\u017een \u2013 chr\u00e1n\u00ed p\u0159ed vysok\u00fdm poruchov\u00fdm proudem okam\u017eit\u00fdm otev\u0159en\u00edm. Bohu\u017eel to znamen\u00e1, \u017ee nerozli\u0161uje mezi \u201ctoto je moje porucha k odstran\u011bn\u00ed\u201d a \u201ctoto by m\u011blo vy\u0159e\u0161it pod\u0159azen\u00e9 za\u0159\u00edzen\u00ed\u201d. Vid\u00ed vysok\u00fd proud, vypne. Bez ot\u00e1zek.<\/p>\n<p>\u010c\u00edsla vypr\u00e1v\u011bj\u00ed p\u0159\u00edb\u011bh. V na\u0161em d\u0159\u00edv\u011bj\u0161\u00edm p\u0159\u00edkladu hlavn\u00ed MCCB vypnul za 12 milisekund. Pod\u0159azen\u00fd odbo\u010dkov\u00fd MCCB pot\u0159eboval 45 milisekund k odstran\u011bn\u00ed poruchy. Hlavn\u00ed jisti\u010d vyhr\u00e1l z\u00e1vod \u2013 a v d\u016fsledku toho ztratil nap\u00e1jen\u00ed cel\u00fd v\u00e1\u0161 z\u00e1vod.<\/p>\n<p>Nem\u016f\u017eete koordinovat to, co nem\u016f\u017eete zpozdit.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-20194\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Electrical-Protection-System-Analysis.webp\" alt=\"Electrical Protection System Analysis\" width=\"820\" height=\"700\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Electrical-Protection-System-Analysis.webp 820w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Electrical-Protection-System-Analysis-300x256.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Electrical-Protection-System-Analysis-768x656.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Electrical-Protection-System-Analysis-14x12.webp 14w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Electrical-Protection-System-Analysis-600x512.webp 600w\" sizes=\"(max-width: 820px) 100vw, 820px\" \/><\/p>\n<p>IEC 60947-2:2024 toto omezen\u00ed v\u00fdslovn\u011b uzn\u00e1v\u00e1. MCCB jsou klasifikov\u00e1ny jako za\u0159\u00edzen\u00ed kategorie A: \u201cjisti\u010de, kter\u00e9 nejsou specificky ur\u010deny pro selektivitu za podm\u00ednek zkratu\u201d. Norma v\u00e1m form\u00e1ln\u00edm jazykem \u0159\u00edk\u00e1, \u017ee MCCB v hlavn\u00ed pozici p\u0159edstavuj\u00ed riziko koordinace.<\/p>\n<p>ICCB to \u0159e\u0161\u00ed pomoc\u00ed <strong>Okna \u010dek\u00e1n\u00ed a sledov\u00e1n\u00ed<\/strong>\u2013 \u010dasov\u00e9 zpo\u017ed\u011bn\u00ed s podporou Icw. Typick\u00fd ICCB m\u016f\u017ee m\u00edt jmenovitou hodnotu Icw 42 kA po dobu 0,1 sekundy nebo 50 kA po dobu 0,5 sekundy. B\u011bhem tohoto okna m\u016f\u017ee ICCB v\u00e9st poruchov\u00fd proud bez vypnut\u00ed, co\u017e d\u00e1v\u00e1 pod\u0159azen\u00fdm jisti\u010d\u016fm \u010das jednat. <a href=\"https:\/\/test.viox.com\/cs\/stop-wiring-failures-the-engineers-guide-to-dry-vs-wet-contacts\/\">kontakty<\/a> se nesva\u0159uj\u00ed, pouzdro neprask\u00e1, p\u0159\u00edpojnice se nep\u0159eh\u0159\u00edvaj\u00ed \u2013 je navr\u017eeno tak, aby odolalo tepeln\u00e9mu nam\u00e1h\u00e1n\u00ed i elektromagnetick\u00fdm sil\u00e1m tohoto masivn\u00edho proudov\u00e9ho r\u00e1zu.<\/p>\n<p>Poj\u010fme si ujasnit, co znamen\u00e1 \u201codolat\u201d. Kdy\u017e kontakty navr\u017een\u00e9 pro trval\u00fd provoz 630 A prot\u00e9k\u00e1 42 000 amp\u00e9r, elektromagnetick\u00e9 s\u00edly jsou obrovsk\u00e9 \u2013 p\u0159edstavte si, \u017ee se sna\u017e\u00edte udr\u017eet dva siln\u00e9 magnety od sebe, zat\u00edmco se sna\u017e\u00ed srazit dohromady. Tepeln\u00e9 zat\u00ed\u017een\u00ed je intenzivn\u00ed \u2013 takov\u00fd proud generuje v\u00e1\u017en\u00e9 teplo i po dobu 0,1 sekundy. Mechanick\u00e1 konstrukce ICCB, mechanismus provozu s ulo\u017eenou energi\u00ed a robustn\u00ed konstrukce kontakt\u016f jsou navr\u017eeny tak, aby toto zneu\u017eit\u00ed p\u0159e\u017eily. MCCB? Jeho kontakty by se sva\u0159ily, jeho vyp\u00ednac\u00ed mechanismus by selhal nebo by se minim\u00e1ln\u011b vypnul, aby se ochr\u00e1nil.<\/p>\n<p>V na\u0161em sc\u00e9n\u00e1\u0159i kask\u00e1dov\u00e9 poruchy vypad\u00e1 spr\u00e1vn\u00e1 selektivita takto:<\/p>\n<ul>\n<li><strong>\u010cas 0 ms:<\/strong> Dojde k poru\u0161e v panelu 3B. Zkratov\u00fd proud: 18 kA.<\/li>\n<li><strong>\u010cas 12 ms:<\/strong> Odbo\u010dkov\u00fd MCCB v panelu 3B za\u010d\u00edn\u00e1 otev\u00edrat sv\u00e9 kontakty.<\/li>\n<li><strong>\u010cas 45 ms:<\/strong> Odbo\u010dkov\u00fd MCCB pln\u011b odstran\u00ed poruchu. Proud se vr\u00e1t\u00ed na nulu.<\/li>\n<li><strong>Hlavn\u00ed ICCB:<\/strong> Vedl 18 kA po dobu 45 ms (hluboko pod jeho jmenovitou hodnotou 0,1 s, 42 kA). Nikdy nevypnul. Z\u00e1vod z\u016fst\u00e1v\u00e1 nap\u00e1jen.<\/li>\n<\/ul>\n<p>To je koordinace. To je to, co v\u00e1m koup\u00ed 7 000.<\/p>\n<\/section>\n<section id=\"technical-comparison\">\n<h2>MCCB vs ICCB: Kompletn\u00ed technick\u00e9 srovn\u00e1n\u00ed<\/h2>\n<p>Poj\u010fme si rozebrat ka\u017ed\u00fd technick\u00fd rozm\u011br, ve kter\u00e9m se tyto jisti\u010de li\u0161\u00ed \u2013 a pro\u010d na t\u011bchto rozd\u00edlech z\u00e1le\u017e\u00ed pro va\u0161i aplikaci.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-20195\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/CIRCUIT-BREAKER-COMPARAISON.webp\" alt=\"CIRCUIT BREAKER COMPARAISON\" width=\"832\" height=\"1248\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/CIRCUIT-BREAKER-COMPARAISON.webp 832w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/CIRCUIT-BREAKER-COMPARAISON-200x300.webp 200w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/CIRCUIT-BREAKER-COMPARAISON-683x1024.webp 683w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/CIRCUIT-BREAKER-COMPARAISON-768x1152.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/CIRCUIT-BREAKER-COMPARAISON-8x12.webp 8w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/CIRCUIT-BREAKER-COMPARAISON-600x900.webp 600w\" sizes=\"(max-width: 832px) 100vw, 832px\" \/><\/p>\n<h3>Konstrukce a filozofie n\u00e1vrhu<\/h3>\n<p><strong>MCCB<\/strong> jsou postaveny jako ut\u011bsn\u011bn\u00e9 n\u00e1dr\u017ee. Cel\u00fd provozn\u00ed mechanismus \u2013 kontakty, zh\u00e1\u0161ec\u00ed komory, vyp\u00ednac\u00ed jednotka a t\u00e1hla \u2013 \u017eije uvnit\u0159 lisovan\u00e9ho plastov\u00e9ho nebo prysky\u0159i\u010dn\u00e9ho pouzdra. Po v\u00fdrob\u011b je jisti\u010d v podstat\u011b neopraviteln\u00fd. Pokud vyp\u00ednac\u00ed jednotka sel\u017ee nebo se kontakty opot\u0159ebuj\u00ed, vym\u011bn\u00edte celou jednotku. To sni\u017euje n\u00e1klady a usnad\u0148uje instalaci. U MCCB 400 A se d\u00edv\u00e1te na 800 a\u017e 1 500. Kompaktn\u00ed p\u016fdorys je velkou v\u00fdhodou v panelech s omezen\u00fdm prostorem.<\/p>\n<p><strong>ICCB<\/strong> zauj\u00edmaj\u00ed odli\u0161n\u00fd p\u0159\u00edstup. Jsou konstruov\u00e1ny s robustn\u00ed, modul\u00e1rn\u00ed konstrukc\u00ed uvnit\u0159 siln\u00e9ho izola\u010dn\u00edho krytu. Kl\u00ed\u010dovou vlastnost\u00ed je dvoustup\u0148ov\u00fd mechanismus akumulovan\u00e9 energie \u2013 syst\u00e9m s pru\u017einou, kter\u00fd zaji\u0161\u0165uje siln\u00e9, rychl\u00e9 odd\u011blen\u00ed kontakt\u016f i za podm\u00ednek vysok\u00e9 poruchy. Kontakty, spou\u0161t\u011bc\u00ed jednotky a n\u011bkter\u00e9 mechanick\u00e9 komponenty jsou vym\u011bniteln\u00e9 v ter\u00e9nu. U srovnateln\u00e9ho 630A ICCB se po\u010d\u00e1te\u010dn\u00ed cena pohybuje od 7 000 do 12 000 $. Ale kdy\u017e je t\u0159eba po 15 letech vym\u011bnit elektronickou spou\u0161t\u011bc\u00ed jednotku? To je v\u00fdm\u011bna spou\u0161t\u011bc\u00ed jednotky za 2 000 $ nam\u00edsto v\u00fdm\u011bny jisti\u010de za 10 000 $. Fyzick\u00e1 stopa je v\u00fdrazn\u011b v\u011bt\u0161\u00ed \u2013 jedn\u00e1 se o za\u0159\u00edzen\u00ed t\u0159\u00eddy rozvad\u011b\u010d\u016f.<\/p>\n<p>Pokud po\u010d\u00edt\u00e1te n\u00e1klady \u017eivotn\u00edho cyklu, v\u00fdhoda \u00fadr\u017eby ICCB se st\u00e1v\u00e1 v\u00fdznamnou. \u0158ekn\u011bme, \u017ee m\u00e1te kritick\u00fd hlavn\u00ed p\u0159\u00edvod, kter\u00fd b\u011b\u017e\u00ed 25 let. MCCB m\u016f\u017ee pot\u0159ebovat jednu \u00faplnou v\u00fdm\u011bnu (1 500 $) v polovin\u011b \u017eivotnosti kv\u016fli opot\u0159eben\u00ed kontakt\u016f. ICCB m\u016f\u017ee pot\u0159ebovat jednu v\u00fdm\u011bnu spou\u0161t\u011bc\u00ed jednotky (2 000 $) a jednu sadu kontaktn\u00edch sad (1 200 $). Po\u010d\u00e1te\u010dn\u00ed rozd\u00edl v n\u00e1kladech: 8 000 $. Rozd\u00edl v n\u00e1kladech na \u00fadr\u017ebu b\u011bhem \u017eivotnosti: 1 700 $. B\u011bhem 25 let se rozd\u00edl zmen\u0161uje.<\/p>\n<p>Ale tohle nem\u016f\u017eete ocenit: Kdy\u017e se porouch\u00e1 spou\u0161t\u011bc\u00ed jednotka va\u0161eho hlavn\u00edho jisti\u010de ICCB, vym\u011bn\u00edte ji b\u011bhem pl\u00e1novan\u00e9ho okna \u00fadr\u017eby \u2013 mo\u017en\u00e1 2 hodiny odst\u00e1vky. Kdy\u017e se porouch\u00e1 v\u00e1\u0161 hlavn\u00ed jisti\u010d MCCB? \u010cek\u00e1 v\u00e1s nouzov\u00e9 po\u0159\u00edzen\u00ed, urychlen\u00e1 p\u0159eprava (pokud m\u00e1te \u0161t\u011bst\u00ed) a nepl\u00e1novan\u00fd v\u00fdpadek, kter\u00fd m\u016f\u017ee trvat 8\u201324 hodin v z\u00e1vislosti na skladov\u00fdch z\u00e1sob\u00e1ch distributora. To je <strong>Da\u0148 za selektivitu<\/strong> se projevuje v jin\u00e9 podob\u011b \u2013 skryt\u00e9 n\u00e1klady na neudr\u017eovateln\u00e9 za\u0159\u00edzen\u00ed v kritick\u00fdch pozic\u00edch.<\/p>\n<h3>Jmenovit\u00fd proud Icw: Va\u0161e pojistka selektivity<\/h3>\n<p>Zde si ICCB vyd\u011bl\u00e1vaj\u00ed svou pr\u00e9mii.<\/p>\n<p>MCCB, jako za\u0159\u00edzen\u00ed kategorie A podle IEC 60947-2:2024, nemaj\u00ed zve\u0159ejn\u011bn\u00fd jmenovit\u00fd proud Icw. N\u011bkter\u00e9 MCCB s v\u011bt\u0161\u00edm r\u00e1mem (nad 1000 A) mohou m\u00edt omezenou kr\u00e1tkodobou schopnost, ale nen\u00ed to jmenovit\u00fd, testovan\u00fd ani garantovan\u00fd parametr. U v\u011bt\u0161iny MCCB do 630 A je Icw prakticky nulov\u00fd \u2013 mus\u00ed okam\u017eit\u011b vypnout, kdy\u017e zkratov\u00fd proud p\u0159ekro\u010d\u00ed jejich okam\u017eit\u00e9 nastaven\u00ed.<\/p>\n<p>ICCB, jako za\u0159\u00edzen\u00ed kategorie B, jsou speci\u00e1ln\u011b navr\u017eeny a testov\u00e1ny pro kr\u00e1tkodobou odolnost. B\u011b\u017en\u00e9 jmenovit\u00e9 proudy Icw zahrnuj\u00ed:<\/p>\n<ul>\n<li><strong>42 kA po dobu 0,1 s<\/strong> (b\u011b\u017en\u00e9 pro r\u00e1my 630-800 A)<\/li>\n<li><strong>50 kA po dobu 0,5 s<\/strong> (st\u0159edn\u011b zat\u00ed\u017een\u00e9 ICCB)<\/li>\n<li><strong>65 kA po dobu 1,0 s<\/strong> (vysoce zat\u00ed\u017een\u00e9 ICCB pro prost\u0159ed\u00ed s v\u00e1\u017en\u00fdmi poruchami)<\/li>\n<\/ul>\n<p>Nejedn\u00e1 se o marketingov\u00e1 tvrzen\u00ed \u2013 jedn\u00e1 se o jmenovit\u00e9 hodnoty testovan\u00e9 a ov\u011b\u0159en\u00e9 podle IEC 60947-2. B\u011bhem testov\u00e1n\u00ed je jisti\u010d vystaven jmenovit\u00e9mu proudu Icw po stanovenou dobu, p\u0159i\u010dem\u017e je dr\u017een zav\u0159en\u00fd (bez vyp\u00ednac\u00ed operace). Po testu nesm\u00ed jisti\u010d vykazovat \u017e\u00e1dn\u00e9 po\u0161kozen\u00ed, mus\u00ed si zachovat svou dielektrickou odolnost a pokra\u010dovat v provozu v r\u00e1mci specifikace.<\/p>\n<p><strong>Okna \u010dek\u00e1n\u00ed a sledov\u00e1n\u00ed<\/strong> byste m\u011bli o t\u00e9to jmenovit\u00e9 hodnot\u011b uva\u017eovat. Pokud m\u00e1 v\u00e1\u0161 ICCB Icw 42 kA po dobu 0,1 sekundy, m\u016f\u017eete nastavit kr\u00e1tkodob\u00e9 zpo\u017ed\u011bn\u00ed a\u017e 0,1 sekundy a jisti\u010d p\u0159e\u017eije jak\u00fdkoli poruchov\u00fd proud a\u017e do 42 kA b\u011bhem tohoto okna. To d\u00e1v\u00e1 va\u0161im pod\u0159\u00edzen\u00fdm jisti\u010d\u016fm \u2013 obvykle vyp\u00ednaj\u00edc\u00edm za 20\u201380 ms v z\u00e1vislosti na velikosti poruchy a typu jisti\u010de \u2013 \u010das na prvn\u00ed operaci.<\/p>\n<p>Zde je postup, jak dimenzovat Icw pro v\u00e1\u0161 syst\u00e9m:<\/p>\n<ol>\n<li><strong>Vypo\u010d\u00edtejte potenci\u00e1ln\u00ed zkratov\u00fd proud v poloze hlavn\u00edho jisti\u010de.<\/strong> Pokud jste nap\u00e1jeni z transform\u00e1toru 1000 kVA s impedanc\u00ed 6% p\u0159i 400 V, v\u00e1\u0161 dostupn\u00fd poruchov\u00fd proud je p\u0159ibli\u017en\u011b 36 kA. Pot\u0159ebujete jmenovit\u00fd proud Icw nad touto hodnotou.<\/li>\n<li><strong>Ur\u010dete doby vypnut\u00ed pod\u0159\u00edzen\u00fdch jisti\u010d\u016f.<\/strong> U MCCB v rozsahu 100\u2013630 A, kter\u00e9 vyp\u00ednaj\u00ed poruchy v oblasti magnetick\u00e9ho vypnut\u00ed, o\u010dek\u00e1vejte dobu vypnut\u00ed 20\u201350 ms. U vy\u0161\u0161\u00edch \u00farovn\u00ed poruch, kter\u00e9 se bl\u00ed\u017e\u00ed jejich jmenovit\u00e9 hodnot\u011b Icu, se doby vypnut\u00ed prodlu\u017euj\u00ed na 50\u2013100 ms.<\/li>\n<li><strong>P\u0159idejte bezpe\u010dnostn\u00ed rezervu a vyberte dobu trv\u00e1n\u00ed Icw.<\/strong> Pokud v\u00e1\u0161 nejpomalej\u0161\u00ed pod\u0159\u00edzen\u00fd jisti\u010d vypne za 80 ms, specifikujte dobu trv\u00e1n\u00ed Icw alespo\u0148 0,1 s (100 ms). B\u011b\u017enou prax\u00ed je jeden \u010dasov\u00fd krok nad va\u0161\u00ed vypo\u010d\u00edtanou pot\u0159ebou. Pokud je 0,1 s hrani\u010dn\u00ed, specifikujte 0,25 s nebo 0,5 s.<\/li>\n<li><strong>Nastavte kr\u00e1tkodob\u00e9 zpo\u017ed\u011bn\u00ed.<\/strong> S jmenovit\u00fdm proudem Icw 42 kA \/ 0,1 s a vypo\u010d\u00edtan\u00fdm poruchov\u00fdm proudem 36 kA m\u016f\u017eete bezpe\u010dn\u011b nastavit kr\u00e1tkodob\u00e9 zpo\u017ed\u011bn\u00ed 0,1 s na va\u0161em ICCB s v\u011bdom\u00edm, \u017ee p\u0159e\u017eije, dokud pod\u0159\u00edzen\u00e9 za\u0159\u00edzen\u00ed neodstran\u00ed poruchu.<\/li>\n<\/ol>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-20197\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Icw-Rating-and-Selectivity-Window-Timeline.webp\" alt=\"Icw Rating and Selectivity Window Timeline\" width=\"800\" height=\"360\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Icw-Rating-and-Selectivity-Window-Timeline.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Icw-Rating-and-Selectivity-Window-Timeline-300x135.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Icw-Rating-and-Selectivity-Window-Timeline-768x346.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Icw-Rating-and-Selectivity-Window-Timeline-18x8.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Icw-Rating-and-Selectivity-Window-Timeline-600x270.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>Tento v\u00fdpo\u010det je <strong>Kask\u00e1dov\u00e9m zabij\u00e1ku<\/strong> v akci \u2013 navrhov\u00e1n\u00ed selektivity do va\u0161eho syst\u00e9mu nam\u00edsto toho, abyste v ni doufali.<\/p>\n<h3>Spou\u0161t\u011bc\u00ed jednotky: Termomagnetick\u00e9 vs. LSIG mikroprocesorov\u00e9<\/h3>\n<p><strong>MCCB<\/strong> se obvykle dod\u00e1vaj\u00ed s jedn\u00edm ze dvou typ\u016f spou\u0161t\u011bc\u00edch jednotek:<\/p>\n<ul>\n<li><strong>Termomagnetick\u00e9:<\/strong> Bimetalov\u00fd p\u00e1sek pro ochranu proti p\u0159et\u00ed\u017een\u00ed (termick\u00e1 \u010d\u00e1st) a elektromagnetick\u00e1 c\u00edvka pro ochranu proti zkratu (magnetick\u00e1 \u010d\u00e1st). Nastavitelnost je omezen\u00e1 \u2013 mo\u017en\u00e1 knofl\u00edk pro nastaven\u00ed termick\u00e9ho nastaven\u00ed v rozmez\u00ed \u00b120%. Jsou robustn\u00ed, spolehliv\u00e9 a bez\u00fadr\u017ebov\u00e9. Tak\u00e9 nejsou p\u0159\u00edli\u0161 chytr\u00e9.<\/li>\n<li><strong>Z\u00e1kladn\u00ed elektronick\u00e9:<\/strong> Spou\u0161t\u011bc\u00ed jednotka zalo\u017een\u00e1 na mikroprocesoru s pon\u011bkud v\u011bt\u0161\u00ed nastavitelnost\u00ed \u2013 mo\u017en\u00e1 nastaven\u00ed Long-time (L) a Instantaneous (I). Z\u00edsk\u00e1te v\u00fdb\u011br k\u0159ivky, mo\u017en\u00e1 ochranu proti zemn\u00edmu spojen\u00ed u model\u016f vy\u0161\u0161\u00ed t\u0159\u00eddy. Lep\u0161\u00ed ne\u017e termomagnetick\u00e9, ale st\u00e1le omezen\u00e9 ve srovn\u00e1n\u00ed s ICCB.<\/li>\n<\/ul>\n<p><strong>ICCB<\/strong> t\u00e9m\u011b\u0159 v\u00fdhradn\u011b pou\u017e\u00edvaj\u00ed pokro\u010dil\u00e9 spou\u0161t\u011bc\u00ed jednotky zalo\u017een\u00e9 na mikroprocesoru s plnou <strong>LSIG<\/strong> ochranou \u2013 p\u0159edstavte si to jako \u0161v\u00fdcarsk\u00fd arm\u00e1dn\u00ed n\u016f\u017e pro ochranu obvod\u016f:<\/p>\n<ul>\n<li><strong>L (Long-time):<\/strong> Ochrana proti p\u0159et\u00ed\u017een\u00ed. Nastaviteln\u00e9 nastaven\u00ed (obvykle 0,4\u20131,0 \u00d7 In), nastaviteln\u00e9 \u010dasov\u00e9 zpo\u017ed\u011bn\u00ed. Toto je va\u0161e termick\u00e1 k\u0159ivka p\u0159et\u00ed\u017een\u00ed.<\/li>\n<li><strong>S (Short-time):<\/strong> Toto je okno \u010dek\u00e1n\u00ed a sledov\u00e1n\u00ed. Nastaviteln\u00e9 nastaven\u00ed (obvykle 1,5\u201310 \u00d7 In), nastaviteln\u00e9 \u010dasov\u00e9 zpo\u017ed\u011bn\u00ed (0,05\u20131,0 s). Toto je v\u00e1\u0161 n\u00e1stroj selektivity.<\/li>\n<li><strong>I (Instantaneous):<\/strong> Ultra rychl\u00e9 vypnut\u00ed pro velmi vysok\u00e9 poruchov\u00e9 proudy. Nastaviteln\u00e9 nastaven\u00ed (obvykle 3\u201315 \u00d7 In), bez \u00famysln\u00e9ho zpo\u017ed\u011bn\u00ed. Toto je va\u0161e nastaven\u00ed \u201cn\u011bco je velmi \u0161patn\u011b, otev\u0159\u00edt hned\u201d.<\/li>\n<li><strong>G (Ground fault):<\/strong> Samostatn\u00e1 detekce zemn\u00edho spojen\u00ed s vlastn\u00edm nastaven\u00edm a \u010dasov\u00fdm zpo\u017ed\u011bn\u00edm. Kritick\u00e9 pro bezpe\u010dnost person\u00e1lu a prevenci po\u017e\u00e1r\u016f zp\u016fsoben\u00fdch zemn\u00edm spojen\u00edm.<\/li>\n<\/ul>\n<p>Pro\u010d na t\u00e9to nastavitelnosti z\u00e1le\u017e\u00ed? Proto\u017ee ka\u017ed\u00fd elektrick\u00fd syst\u00e9m je jedine\u010dn\u00fd. V\u00e1\u0161 z\u00e1b\u011bhov\u00fd proud motoru m\u016f\u017ee b\u00fdt 6 \u00d7 In. Va\u0161e studie koordinace pod\u0159\u00edzen\u00fdch za\u0159\u00edzen\u00ed m\u016f\u017ee vy\u017eadovat zpo\u017ed\u011bn\u00ed 0,2 s p\u0159i 8 \u00d7 In. Va\u0161e ochrana proti zemn\u00edmu spojen\u00ed mus\u00ed b\u00fdt koordinov\u00e1na s pod\u0159\u00edzen\u00fdmi GFCIs. Spou\u0161t\u011bc\u00ed jednotka LSIG v\u00e1m umo\u017en\u00ed p\u0159esn\u011b nastavit ochranu a koordinaci, kterou v\u00e1\u0161 syst\u00e9m vy\u017eaduje.<\/p>\n<p>Se z\u00e1kladn\u00ed spou\u0161t\u011bc\u00ed jednotkou MCCB jste omezeni tov\u00e1rn\u00edm nastaven\u00edm nebo velmi omezen\u00fdm nastaven\u00edm. M\u016f\u017eete specifikovat jin\u00fd model jisti\u010de s jinou vyp\u00ednac\u00ed k\u0159ivkou a doufat, \u017ee to bude fungovat. S ICCB naprogramujete p\u0159esn\u011b tu ochranu, kterou pot\u0159ebujete.<\/p>\n<p>A zde je praktick\u00e1 v\u00fdhoda: Kdy\u017e se v\u00e1\u0161 syst\u00e9m zm\u011bn\u00ed \u2013 kdy\u017e p\u0159id\u00e1te velk\u00fd VFD, kter\u00fd zm\u011bn\u00ed v\u00e1\u0161 profil poruchov\u00e9ho proudu, nebo kdy\u017e p\u0159id\u00e1te pod\u0159\u00edzen\u00e9 obvody, kter\u00e9 vy\u017eaduj\u00ed jinou koordinaci \u2013 m\u016f\u017eete p\u0159eprogramovat spou\u0161t\u011bc\u00ed jednotku ICCB. S MCCB mo\u017en\u00e1 budete vym\u011b\u0148ovat jisti\u010de.<\/p>\n<h3>Jmenovit\u00e9 proudy a rozsah pou\u017eit\u00ed<\/h3>\n<p><strong>MCCB<\/strong> pokr\u00fdvaj\u00ed rozsah od 15 A do 2500 A. Jejich ide\u00e1ln\u00ed oblast\u00ed je 15\u20131600 A, kde dominuj\u00ed podrozvodn\u00e1m, \u0159\u00eddic\u00edm centr\u016fm motor\u016f a ochran\u011b odbo\u010dkov\u00fdch obvod\u016f. Na horn\u00edm konci (1600\u20132500 A) se d\u00edv\u00e1te na specializovan\u00e9, fyzicky velk\u00e9 MCCB, kter\u00e9 st\u00edraj\u00ed hranici s ICCB \u2013 ale st\u00e1le se jedn\u00e1 o za\u0159\u00edzen\u00ed kategorie A bez smyslupln\u00fdch jmenovit\u00fdch hodnot Icw.<\/p>\n<p><strong>ICCB<\/strong> obvykle za\u010d\u00ednaj\u00ed na 400 A a roz\u0161i\u0159uj\u00ed se na 5000 A nebo v\u00edce. Jejich konstruk\u010dn\u00edm z\u00e1m\u011brem je hlavn\u00ed distribuce \u2013 vstupn\u00ed za\u0159\u00edzen\u00ed, hlavn\u00ed rozvad\u011b\u010de, spojovac\u00ed jisti\u010de a kritick\u00e1 ochrana nap\u00e1je\u010d\u016f, kde je selektivita a spolehlivost prvo\u0159ad\u00e1. Pod 400 A jsou ICCB vz\u00e1cn\u00e9; nad 2500 A za\u010d\u00ednaj\u00ed ustupovat vzduchov\u00fdm jisti\u010d\u016fm (ACB), kter\u00e9 nab\u00edzej\u00ed je\u0161t\u011b vy\u0161\u0161\u00ed jmenovit\u00e9 hodnoty a kompletn\u00ed v\u00fdsuvnou servisovatelnost.<\/p>\n<p>Existuje z\u00f3na p\u0159ekryt\u00ed: 400\u20132500 A. V tomto rozsahu m\u016f\u017eete specifikovat bu\u010f MCCB, nebo ICCB. Va\u0161e rozhodovac\u00ed krit\u00e9ria:<\/p>\n<ul>\n<li><strong>Hlavn\u00ed p\u0159\u00edvod nebo kritick\u00e1 hlavn\u00ed distribuce?<\/strong> \u2192 ICCB<\/li>\n<li><strong>Pot\u0159ebujete skute\u010dnou selektivitu s pod\u0159\u00edzen\u00fdmi za\u0159\u00edzen\u00edmi?<\/strong> \u2192 ICCB<\/li>\n<li><strong>Podrozvodna nebo nekritick\u00fd nap\u00e1je\u010d?<\/strong> \u2192 MCCB \u0161et\u0159\u00ed n\u00e1klady<\/li>\n<li><strong>Potenci\u00e1ln\u00ed poruchov\u00fd proud syst\u00e9mu &gt;30 kA a vy\u017eaduje koordinaci?<\/strong> \u2192 ICCB<\/li>\n<li><strong>Panel s omezen\u00fdm prostorem?<\/strong> \u2192 MCCB je kompaktn\u011bj\u0161\u00ed<\/li>\n<\/ul>\n<p>Pod 400 A je MCCB obvykle va\u0161\u00ed jedinou praktickou volbou, pokud nejste ochotni v\u00fdrazn\u011b p\u0159edimenzovat ICCB. Nad 2500 A se ICCB st\u00e1v\u00e1 povinn\u00fdm pro slu\u0161nou dostupnost a v\u00fdkon.<\/p>\n<h3>Srovn\u00e1vac\u00ed tabulka<\/h3>\n<table style=\"width: 100%; border-collapse: collapse; margin: 20px 0;\" border=\"1\" cellspacing=\"0\" cellpadding=\"10\">\n<thead>\n<tr style=\"background-color: #f0f0f0;\">\n<th style=\"text-align: left;\">Parametr<\/th>\n<th style=\"text-align: left;\">MCCB<\/th>\n<th style=\"text-align: left;\">ICCB<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Aktu\u00e1ln\u00ed rozsah<\/strong><\/td>\n<td>15-2500 A<\/td>\n<td>400-5000A+<\/td>\n<\/tr>\n<tr>\n<td><strong>Kategorie IEC<\/strong><\/td>\n<td>Kategorie A (bez z\u00e1m\u011bru selektivity)<\/td>\n<td>Kategorie B (selektivita podle n\u00e1vrhu)<\/td>\n<\/tr>\n<tr>\n<td><strong>Jmenovit\u00e1 zkratov\u00e1 v\u00fddr\u017e Icw<\/strong><\/td>\n<td>\u017d\u00e1dn\u00e1 (nebo nehodnoceno)<\/td>\n<td>30-85kA po dobu 0,05-1,0s<\/td>\n<\/tr>\n<tr>\n<td><strong>Vyp\u00ednac\u00ed schopnost (Icu)<\/strong><\/td>\n<td>A\u017e 150kA<\/td>\n<td>A\u017e 150kA+<\/td>\n<\/tr>\n<tr>\n<td><strong>Spou\u0161t\u011bc\u00ed jednotky<\/strong><\/td>\n<td>Termomagnetick\u00e9 nebo z\u00e1kladn\u00ed elektronick\u00e9<\/td>\n<td>Mikroprocesorov\u00e9 LSIG (pln\u011b nastaviteln\u00e9)<\/td>\n<\/tr>\n<tr>\n<td><strong>Zpo\u017ed\u011bn\u00ed zkratov\u00e9 ochrany<\/strong><\/td>\n<td>Nen\u00ed k dispozici<\/td>\n<td>Nastaviteln\u00e9 0,05-1,0s<\/td>\n<\/tr>\n<tr>\n<td><strong>Stavebnictv\u00ed<\/strong><\/td>\n<td>Ut\u011bsn\u011bn\u00e9, neopraviteln\u00e9<\/td>\n<td>Modul\u00e1rn\u00ed, opraviteln\u00e9 v ter\u00e9nu<\/td>\n<\/tr>\n<tr>\n<td><strong>Typick\u00e9 n\u00e1klady (630A)<\/strong><\/td>\n<td>$800-$1,500<\/td>\n<td>$7,000-$12,000<\/td>\n<\/tr>\n<tr>\n<td><strong>Fyzick\u00e1 Velikost<\/strong><\/td>\n<td>Kompaktn\u00ed<\/td>\n<td>Velk\u00e9 (t\u0159\u00edda rozvad\u011b\u010de)<\/td>\n<\/tr>\n<tr>\n<td><strong>\u017divotnost a servisovatelnost<\/strong><\/td>\n<td>Vym\u011b\u0148te celou jednotku<\/td>\n<td>Vym\u011b\u0148te spou\u0161t\u011bc\u00ed jednotku nebo kontakty<\/td>\n<\/tr>\n<tr>\n<td><strong>Typical Application<\/strong><\/td>\n<td>Podru\u017en\u00e9 rozvody, odbo\u010dkov\u00e9 obvody<\/td>\n<td>Hlavn\u00ed p\u0159\u00edvody, kritick\u00e9 s\u00edt\u011b<\/td>\n<\/tr>\n<tr>\n<td><strong>Schopnost koordinace<\/strong><\/td>\n<td>Omezen\u00e1 (pouze rychl\u00e9 vypnut\u00ed)<\/td>\n<td>Vynikaj\u00edc\u00ed (k dispozici \u010dasov\u00e9 zpo\u017ed\u011bn\u00ed)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/section>\n<section id=\"decision-framework\">\n<h2>Kdy pou\u017e\u00edt MCCB vs ICCB: Rozhodovac\u00ed strom pro in\u017een\u00fdra<\/h2>\n<p>Volba mezi MCCB a ICCB nen\u00ed o specifikac\u00edch izolovan\u011b \u2013 jde o slad\u011bn\u00ed schopnost\u00ed jisti\u010de s po\u017eadavky syst\u00e9mu a obchodn\u00edmi prioritami.<\/p>\n<h3>Krok 1: Identifikujte pozici va\u0161\u00ed aplikace<\/h3>\n<p>Prvn\u00ed ot\u00e1zka je hierarchick\u00e1: Kde se tento jisti\u010d nach\u00e1z\u00ed ve va\u0161em distribu\u010dn\u00edm syst\u00e9mu?<\/p>\n<p><strong>Hlavn\u00ed vstupn\u00ed jisti\u010d?<\/strong> Toto je \u00fazem\u00ed ICCB. Chr\u00e1n\u00edte cel\u00e9 za\u0159\u00edzen\u00ed a vypnut\u00ed zde znamen\u00e1 \u00faplnou tmu. Jmenovit\u00e1 zkratov\u00e1 v\u00fddr\u017e Icw nen\u00ed voliteln\u00e1 \u2013 je to va\u0161e pojistka proti kask\u00e1dov\u00fdm selh\u00e1n\u00edm. I kdy\u017e provozujete relativn\u011b mal\u00e9 za\u0159\u00edzen\u00ed (p\u0159\u00edvod 400A), d\u016fsledky vypnut\u00ed hlavn\u00edho jisti\u010de obvykle ospravedl\u0148uj\u00ed p\u0159\u00edplatek za ICCB.<\/p>\n<p><strong>Podru\u017en\u00e9 rozvody nebo velk\u00e9 p\u0159\u00edvodn\u00ed jisti\u010de?<\/strong> Nyn\u00ed jste na rozhodovac\u00edm \u00fazem\u00ed. Pokud tento jisti\u010d chr\u00e1n\u00ed kritick\u00fd proces (datov\u00e9 centrum, nemocni\u010dn\u00ed opera\u010dn\u00ed s\u00e1l, polovodi\u010dov\u00e1 \u010dist\u00e1 m\u00edstnost), v\u00fdhody selektivity a spolehlivosti ICCB p\u0159ev\u00e1\u017e\u00ed. Pokud nap\u00e1j\u00ed standardn\u00ed kancel\u00e1\u0159sk\u00e9 osv\u011btlen\u00ed nebo nekritick\u00e9 z\u00e1t\u011b\u017ee, MCCB je pravd\u011bpodobn\u011b v po\u0159\u00e1dku.<\/p>\n<p><strong>Odbo\u010dkov\u00fd obvod nebo ochrana motoru?<\/strong> MCCB je va\u0161e odpov\u011b\u010f. Pod 400A a pro nap\u00e1jen\u00ed koncov\u00fdch z\u00e1t\u011b\u017e\u00ed nelze cenov\u00fd p\u0159\u00edplatek za ICCB ospravedlnit. MCCB v t\u00e9to roli vynikaj\u00ed \u2013 jsou n\u00e1kladov\u011b efektivn\u00ed, kompaktn\u00ed a poskytuj\u00ed vynikaj\u00edc\u00ed ochranu pro odbo\u010dkov\u00e9 obvody.<\/p>\n<p>Pravidlo: Pokud vypnut\u00ed v m\u00edst\u011b tohoto jisti\u010de zp\u016fsob\u00ed v\u00fdpadek v cel\u00e9m za\u0159\u00edzen\u00ed nebo vypne kritick\u00e9 syst\u00e9my, pot\u0159ebujete schopnost selektivity ICCB.<\/p>\n<h3>Krok 2: Vypo\u010d\u00edtejte da\u0148 za selektivitu<\/h3>\n<p>Poj\u010fme si promluvit o pen\u011bz\u00edch.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-20198\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Cost-Benefit-Analysis-MCCB-vs-ICCB.webp\" alt=\"Cost-Benefit Analysis MCCB vs ICCB\" width=\"800\" height=\"600\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Cost-Benefit-Analysis-MCCB-vs-ICCB.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Cost-Benefit-Analysis-MCCB-vs-ICCB-300x225.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Cost-Benefit-Analysis-MCCB-vs-ICCB-768x576.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Cost-Benefit-Analysis-MCCB-vs-ICCB-16x12.webp 16w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Cost-Benefit-Analysis-MCCB-vs-ICCB-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p><strong>P\u0159\u00edplatek za ICCB oproti ekvivalentn\u00edmu MCCB:<\/strong> 6 000\u201310 000 K\u010d pro typick\u00e9 hlavn\u00ed vstupn\u00ed jisti\u010de 630-1600A.<\/p>\n<p><strong>N\u00e1klady na jedno kask\u00e1dov\u00e9 selh\u00e1n\u00ed:<\/strong> To siln\u011b z\u00e1vis\u00ed na typu va\u0161eho za\u0159\u00edzen\u00ed:<\/p>\n<ul>\n<li><strong>Mal\u00fd v\u00fdrobn\u00ed z\u00e1vod (10 zam\u011bstnanc\u016f, 500kW):<\/strong> 35 000\u201375 000 K\u010d za 8hodinov\u00fd v\u00fdpadek (ztracen\u00e1 produkce, p\u0159es\u010dasy, n\u00e1klady na restart)<\/li>\n<li><strong>St\u0159edn\u011b velk\u00fd v\u00fdrobn\u00ed z\u00e1vod (50 zam\u011bstnanc\u016f, 2MW):<\/strong> 100 000\u2013250 000 K\u010d za 8hodinov\u00fd v\u00fdpadek<\/li>\n<li><strong>Datov\u00e9 centrum nebo IT operace:<\/strong> 540 000 K\u010d za hodinu (na z\u00e1klad\u011b pr\u016fm\u011bru v oboru 9 000 K\u010d\/minutu)<\/li>\n<li><strong>Nemocni\u010dn\u00ed prostory intenzivn\u00ed p\u00e9\u010de:<\/strong> Nem\u011b\u0159iteln\u00e9 v \u010dist\u011b finan\u010dn\u00edch term\u00ednech (bezpe\u010dnost pacienta), ale odhady se pohybuj\u00ed od 50 000 do 200 000 K\u010d za hodinu v provozn\u00edm naru\u0161en\u00ed<\/li>\n<li><strong>Polovodi\u010dov\u00e1 fabrika nebo kontinu\u00e1ln\u00ed proces:<\/strong> 500 000\u20132 000 000 K\u010d za v\u00fdpadek (po\u0161kozen\u00ed za\u0159\u00edzen\u00ed, ztracen\u00e9 \u0161ar\u017ee, restartovac\u00ed cykly)<\/li>\n<\/ul>\n<p>Prove\u010fte v\u00fdpo\u010det pro va\u0161e za\u0159\u00edzen\u00ed. Odhadn\u011bte hodinovou hodnotu va\u0161\u00ed produkce, p\u0159idejte n\u00e1klady na zmetky\/restart, p\u0159idejte p\u0159\u00edplatek za p\u0159es\u010dasy, p\u0159idejte n\u00e1klady na nouzovou \u00fadr\u017ebu. Nyn\u00ed vyn\u00e1sobte pr\u016fm\u011brnou dobou trv\u00e1n\u00ed v\u00fdpadku (obvykle 4-12 hodin pro kask\u00e1dov\u00e9 selh\u00e1n\u00ed, proto\u017ee \u0159e\u0161\u00edte, pro\u010d se vypnul hlavn\u00ed jisti\u010d, m\u00edsto abyste jen resetovali odbo\u010dkov\u00fd jisti\u010d).<\/p>\n<p><strong>V\u00fdpo\u010det n\u00e1vratnosti:<\/strong><\/p>\n<p>Pokud ICCB zabr\u00e1n\u00ed jen jednomu kask\u00e1dov\u00e9mu selh\u00e1n\u00ed b\u011bhem sv\u00e9 25let\u00e9 \u017eivotnosti, zaplat\u00ed se 5-100kr\u00e1t, v z\u00e1vislosti na va\u0161em za\u0159\u00edzen\u00ed. A tady je h\u00e1\u010dek: Za\u0159\u00edzen\u00ed se \u0161patnou selektivitou neza\u017eije jedno kask\u00e1dov\u00e9 selh\u00e1n\u00ed za 25 let. Obvykle uvid\u00edte 3-10 kask\u00e1dov\u00fdch ud\u00e1lost\u00ed, ne\u017e n\u011bkdo kone\u010dn\u011b upgraduje hlavn\u00ed jisti\u010d. Do t\u00e9 doby jste zaplatili <strong>Da\u0148 za selektivitu<\/strong> opakovan\u011b.<\/p>\n<p>Ten p\u0159\u00edplatek 8 000 K\u010d za ICCB za\u010d\u00edn\u00e1 vypadat jako v\u00fdhodn\u00e1 koup\u011b.<\/p>\n<h3>Krok 3: Zkontrolujte sv\u016fj zkratov\u00fd proud a studii koordinace<\/h3>\n<p>Posledn\u00ed technick\u00e1 kontrola: Pot\u0159ebuje v\u00e1\u0161 syst\u00e9m v\u016fbec schopnost koordinace, kterou ICCB poskytuje?<\/p>\n<p><strong>Vypo\u010d\u00edtejte p\u0159edpokl\u00e1dan\u00fd zkratov\u00fd proud na hlavn\u00edm jisti\u010di.<\/strong> Pokud jste nap\u00e1jeni z mal\u00e9ho transform\u00e1toru (100kVA nebo m\u00e9n\u011b) s v\u00fdznamnou impedanc\u00ed zdroje, v\u00e1\u0161 dostupn\u00fd zkratov\u00fd proud m\u016f\u017ee b\u00fdt pouze 8-12kA. P\u0159i t\u011bchto \u00farovn\u00edch maj\u00ed i MCCB relativn\u011b pomal\u00e9 magnetick\u00e9 vyp\u00ednac\u00ed \u010dasy a z\u00e1kladn\u00ed koordinace pouze prost\u0159ednictv\u00edm velikosti proudu m\u016f\u017ee b\u00fdt dosa\u017eiteln\u00e1. Mo\u017en\u00e1 nepot\u0159ebujete \u010dasovou koordinaci.<\/p>\n<p>Ale tady je realita: V\u011bt\u0161ina komer\u010dn\u00edch a pr\u016fmyslov\u00fdch za\u0159\u00edzen\u00ed m\u00e1 p\u0159edpokl\u00e1dan\u00e9 zkratov\u00e9 proudy 20-50kA na hlavn\u00edm rozvodu. P\u0159i t\u011bchto \u00farovn\u00edch MCCB vypnou za 10-20ms, tak\u017ee nezb\u00fdv\u00e1 \u017e\u00e1dn\u00fd \u010das na koordinaci pod\u0159\u00edzen\u00fdch jisti\u010d\u016f. Pot\u0159ebujete selektivitu s \u010dasov\u00fdm zpo\u017ed\u011bn\u00edm. Pot\u0159ebujete okno \u201ePo\u010dkej a sleduj\u201c. Pot\u0159ebujete ICCB.<\/p>\n<p><strong>Zkontrolujte vyp\u00ednac\u00ed \u010dasy va\u0161ich pod\u0159\u00edzen\u00fdch jisti\u010d\u016f.<\/strong> Pokud jsou v\u0161echny va\u0161e pod\u0159\u00edzen\u00e9 jisti\u010de rychl\u00e9 MCB nebo mal\u00e9 MCCB, kter\u00e9 vyp\u00ednaj\u00ed za m\u00e9n\u011b ne\u017e 30ms, m\u016f\u017eete pou\u017e\u00edt ICCB s kr\u00e1tk\u00fdm \u010dasov\u00fdm zpo\u017ed\u011bn\u00edm (0,05-0,1s) a dos\u00e1hnout pln\u00e9 selektivity. Pokud m\u00e1te v\u011bt\u0161\u00ed pod\u0159\u00edzen\u00e9 MCCB nebo pomalej\u0161\u00ed za\u0159\u00edzen\u00ed, kter\u00fdm trv\u00e1 vypnut\u00ed 80-120ms, budete pot\u0159ebovat del\u0161\u00ed trv\u00e1n\u00ed Icw (0,25-0,5s).<\/p>\n<p><strong>Ov\u011b\u0159te, zda va\u0161e hodnota Icw p\u0159ekra\u010duje v\u00e1\u0161 potenci\u00e1ln\u00ed poruchov\u00fd proud.<\/strong> Pokud je v\u00e1\u0161 vypo\u010dten\u00fd poruchov\u00fd proud 38 kA, nespecifikujte ICCB s Icw 42 kA a ne\u0159\u00edkejte, \u017ee je to v po\u0159\u00e1dku. To je rezerva %\u2014p\u0159\u00edli\u0161 mal\u00e1. Specifikujte 50 kA nebo 65 kA Icw, abyste zohlednili variabilitu p\u0159\u00edsp\u011bvku poruchy od dodavatele energie, budouc\u00ed zm\u011bny syst\u00e9mu a bezpe\u010dnostn\u00ed rezervu.<\/p>\n<p>A pokud si \u0159\u00edk\u00e1te: \u201cNem\u00e1me studii koordinace\u201d \u2013 to je va\u0161e odpov\u011b\u010f. Pokud je va\u0161e za\u0159\u00edzen\u00ed dostate\u010dn\u011b v\u00fdznamn\u00e9, abyste zva\u017eovali ot\u00e1zku MCCB vs. ICCB, pot\u0159ebujete studii zkratu a koordinace. ICCB bez \u0159\u00e1dn\u00e9 studie koordinace je jako koupit si Ferrari a nikdy nevyjet z prvn\u00edho rychlostn\u00edho stupn\u011b. Zaplatili jste za schopnosti, kter\u00e9 nevyu\u017e\u00edv\u00e1te. Naopak, MCCB v hlavn\u00ed pozici bez studie je kask\u00e1dov\u00e9 selh\u00e1n\u00ed, kter\u00e9 \u010dek\u00e1 na spu\u0161t\u011bn\u00ed.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-20199\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Decision-Tree-Flowchart-.webp\" alt=\"Decision Tree Flowchart \" width=\"800\" height=\"585\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Decision-Tree-Flowchart-.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Decision-Tree-Flowchart--300x219.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Decision-Tree-Flowchart--768x562.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Decision-Tree-Flowchart--16x12.webp 16w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/11\/Decision-Tree-Flowchart--600x439.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<\/section>\n<section id=\"conclusion\">\n<h2>Z\u00e1v\u011br: Volba, kter\u00e1 zabr\u00e1n\u00ed $124 000 v\u00fdpadk\u016fm<\/h2>\n<p>Rozd\u00edl mezi MCCB a ICCB nen\u00ed v vyp\u00ednac\u00ed schopnosti, fyzick\u00e9 velikosti nebo dokonce v cen\u011b. Je to selektivita.<\/p>\n<p>MCCB jsou za\u0159\u00edzen\u00ed kategorie A \u2013 rychl\u00e1, spolehliv\u00e1 a n\u00e1kladov\u011b efektivn\u00ed ochrana pro odbo\u010dn\u00e9 obvody a podrozvody. V t\u011bchto rol\u00edch vynikaj\u00ed. Ale v hlavn\u00ed vstupn\u00ed pozici jejich nedostatek hodnoty Icw znamen\u00e1, \u017ee spadaj\u00ed do <strong>Past okam\u017eit\u00e9ho vypnut\u00ed<\/strong>: Nemohou rozli\u0161it mezi poruchami, kter\u00e9 by m\u011bly vypnout, a poruchami, kter\u00e9 by m\u011bla \u0159e\u0161it za\u0159\u00edzen\u00ed um\u00edst\u011bn\u00e1 n\u00ed\u017ee v s\u00edti. Rychlost se st\u00e1v\u00e1 nev\u00fdhodou.<\/p>\n<p>ICCB jsou za\u0159\u00edzen\u00ed kategorie B \u2013 navr\u017een\u00e1 speci\u00e1ln\u011b pro selektivitu na vrcholu distribu\u010dn\u00ed hierarchie. <strong>Kask\u00e1dov\u00e9m zabij\u00e1ku<\/strong> Hodnota Icw jim d\u00e1v\u00e1 <strong>Okna \u010dek\u00e1n\u00ed a sledov\u00e1n\u00ed<\/strong>: schopnost p\u0159en\u00e1\u0161et masivn\u00ed poruchov\u00fd proud po dobu 0,05\u20131,0 sekundy bez vypnut\u00ed, co\u017e umo\u017e\u0148uje vypnut\u00ed poruch nejprve jisti\u010d\u016fm um\u00edst\u011bn\u00fdm n\u00ed\u017ee v s\u00edti. Pokro\u010dil\u00e9 spou\u0161t\u011bc\u00ed jednotky LSIG poskytuj\u00ed p\u0159esn\u00e9, nastaviteln\u00e9 ochrann\u00e9 k\u0159ivky. Modul\u00e1rn\u00ed konstrukce umo\u017e\u0148uje \u00fadr\u017ebu v ter\u00e9nu nam\u00edsto \u00fapln\u00e9 v\u00fdm\u011bny.<\/p>\n<p>Pr\u00e9mie? $6 000\u2013$10 000 za typick\u00fd hlavn\u00ed vstupn\u00ed jisti\u010d.<\/p>\n<p>Odm\u011bna? Nevypnut\u00ed cel\u00e9ho va\u0161eho za\u0159\u00edzen\u00ed, kdy\u017e m\u00e1 panel 3B poruchu.<\/p>\n<p>Zde je rozhodovac\u00ed r\u00e1mec:<\/p>\n<ul>\n<li><strong>Hlavn\u00ed vstupn\u00ed jisti\u010de:<\/strong> ICCB. Nesmlouvav\u00e9, pokud v\u00e1m z\u00e1le\u017e\u00ed na provozuschopnosti.<\/li>\n<li><strong>Kritick\u00e9 nap\u00e1je\u010de (datov\u00e1 centra, nemocnice, kontinu\u00e1ln\u00ed procesy):<\/strong> ICCB. <strong>Da\u0148 za selektivitu<\/strong> z jednoho kask\u00e1dov\u00e9ho selh\u00e1n\u00ed p\u0159esahuje pr\u00e9mii za jisti\u010d.<\/li>\n<li><strong>Podrozvody a standardn\u00ed nap\u00e1je\u010de:<\/strong> MCCB obvykle dosta\u010duj\u00edc\u00ed, pokud studie koordinace neodhal\u00ed probl\u00e9my.<\/li>\n<li><strong>Odbo\u010dn\u00e9 obvody pod 400 A:<\/strong> MCCB. N\u00e1kladov\u011b efektivn\u00ed a vhodn\u00e9.<\/li>\n<\/ul>\n<p>A pokud st\u00e1le v\u00e1h\u00e1te ohledn\u011b pr\u00e9mie $8 000 za ICCB, zva\u017ete toto: Ot\u00e1zka nezn\u00ed: \u201cMohu si dovolit ICCB?\u201d<\/p>\n<p>Zn\u00ed: \u201cMohu si dovolit dal\u0161\u00ed v\u00fdpadek za $124 000?\u201d<\/p>\n<p>Zkontrolujte si dnes specifikace hlavn\u00edho vstupn\u00edho jisti\u010de. Pokud je to MCCB a nem\u00e1te hodnotu Icw, d\u011bl\u00ed v\u00e1s jedna porucha v s\u00edti od zaplacen\u00ed <strong>Da\u0148 za selektivitu<\/strong>. Znovu.<\/p>\n<p><strong>P\u0159esta\u0148te platit da\u0148 za selektivitu. Investujte do zabij\u00e1ka kask\u00e1d.<\/strong> Provozuschopnost va\u0161eho za\u0159\u00edzen\u00ed na tom z\u00e1vis\u00ed.<\/p>\n<\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>You&#8217;re speccing the main incoming breaker for a new 2MW manufacturing facility. Budget says MCCB\u2014saves $7,000 over an ICCB. Your gut says something&#8217;s wrong, but you can&#8217;t quite put your finger on it. You sign off on the MCCB. Six months later: 2:47 AM. A loose connection in Panel 3B arc-faults. In 83 milliseconds, the [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":20200,"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-20187","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\/20187","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=20187"}],"version-history":[{"count":8,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/posts\/20187\/revisions"}],"predecessor-version":[{"id":20202,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/posts\/20187\/revisions\/20202"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/media\/20200"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/media?parent=20187"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/categories?post=20187"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/tags?post=20187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}