{"id":69076,"date":"2023-08-24T06:00:56","date_gmt":"2023-08-24T04:00:56","guid":{"rendered":"https:\/\/botland.com.pl\/blog\/kostka-elektryczna-co-to-jest-i-do-czego-sluzy\/"},"modified":"2026-04-08T11:07:59","modified_gmt":"2026-04-08T09:07:59","slug":"elektricka-kostka-co-je-to-a-k-cemu-slouzi","status":"publish","type":"post","link":"https:\/\/botland.cz\/blog\/elektricka-kostka-co-je-to-a-k-cemu-slouzi\/","title":{"rendered":"Elektrick\u00e1 kostka – Co je to a k \u010demu slou\u017e\u00ed?"},"content":{"rendered":"\u010cas \u010dten\u00ed:<\/span> 3<\/span> min.<\/span><\/span>\t\t
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Elektroinstala\u010dn\u00ed kostky<\/strong> je term\u00edn, kter\u00fd ozna\u010duje komponenty pou\u017e\u00edvan\u00e9 v elektrick\u00fdch instalac\u00edch k propojen\u00ed vodi\u010d\u016f a kabel\u016f. Podobaj\u00ed se mal\u00fdm plastov\u00fdm krabi\u010dk\u00e1m s p\u0159\u00edvody, kter\u00e9 umo\u017e\u0148uj\u00ed bezpe\u010dn\u00e9 a trval\u00e9 p\u0159ipojen\u00ed elektrick\u00fdch kabel\u016f.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Jak funguje elektrick\u00e1 kostka (elektrick\u00fd konektor)?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Je to jednoduch\u00e9. Elektrick\u00e9 kostky<\/strong><\/a> jsou obvykle vybaveny svorkami,<\/strong> do kter\u00fdch lze zasunout konce vodi\u010d\u016f<\/strong>. Po um\u00edst\u011bn\u00ed vodi\u010d\u016f do p\u0159\u00edslu\u0161n\u00fdch svorek je elektrick\u00e1 kostka uzav\u0159ena a od t\u00e9to chv\u00edle m\u016f\u017ee plnit dv\u011b funkce – zaji\u0161\u0165uje nejen mechanick\u00e9 spojen\u00ed, ale tak\u00e9 elektrickou izolaci<\/strong>. Je\u0161t\u011b jedna d\u016fle\u017eit\u00e1 oprava – ozna\u010den\u00ed “elektrick\u00e1 kostka” je d\u00e1no jej\u00edm tvarem<\/strong>, proto\u017ee pat\u0159\u00ed do \u0161ir\u0161\u00ed skupiny modul\u016f ozna\u010dovan\u00fdch jako elektrick\u00e9 konektory<\/strong>.<\/p>\n

Stejn\u011b b\u011b\u017en\u00fd term\u00edn je svorkovnice<\/strong>. Je dobr\u00e9 to v\u011bd\u011bt, proto\u017ee v terminologii t\u00fdkaj\u00edc\u00ed se tohoto obzvl\u00e1\u0161t\u011b mal\u00e9ho a pom\u011brn\u011b nespecializovan\u00e9ho elektrick\u00e9ho p\u0159\u00edslu\u0161enstv\u00ed \u010dasto panuj\u00ed zna\u010dn\u00e9 nejasnosti a zmatky. Kone\u010dn\u00fd tvar kostky obvykle z\u00e1vis\u00ed tak\u00e9 na po\u010dtu pin\u016f<\/strong> – ka\u017ed\u00fd pin m\u00e1 otvor nebo svorku, do kter\u00e9 se zasouvaj\u00ed koncovky vodi\u010d\u016f.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\"\"\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t\t\t
3pinov\u00e1 32A\/400V elektrick\u00e1 kostka - PCT-213 - oran\u017eov\u00e1.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tZKONTROLUJTE U SPOLE\u010cNOSTI BOTLAND<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Kde se pou\u017e\u00edvaj\u00ed elektrick\u00e9 kostky?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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V podstat\u011b v\u0161ude, kde jsou kabely. Doposud se pou\u017e\u00edvaly p\u0159edev\u0161\u00edm pro instalaci patic a vyp\u00edna\u010d\u016f<\/strong> v \u0161ir\u0161\u00edm energetick\u00e9m, osv\u011btlovac\u00edm nebo telekomunika\u010dn\u00edm pr\u016fmyslu. Rostouc\u00ed obliba a trh s dom\u00e1c\u00edmi automatiza\u010dn\u00edmi za\u0159\u00edzen\u00edmi dnes znamen\u00e1, \u017ee se snadno pou\u017e\u00edvaj\u00ed p\u0159i vytv\u00e1\u0159en\u00ed syst\u00e9m\u016f smart home<\/strong><\/a>. Nejd\u016fle\u017eit\u011bj\u0161\u00ed v\u00fdhodou jejich pou\u017eit\u00ed je, \u017ee spoje s elektrick\u00fdmi konektory lze nejen prodlou\u017eit, ale tak\u00e9 “odpojit” nebo p\u0159estav\u011bt ty, kter\u00e9 ji\u017e existuj\u00ed.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Samosvorn\u00e9 elektrick\u00e9 kostky<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Hlavn\u00ed v\u00fdhodou konektor\u016f popsan\u00fdch jako samosvorn\u00e9 elektrick\u00e9 kostky<\/strong><\/a> je, \u017ee nen\u00ed t\u0159eba pou\u017e\u00edvat dal\u0161\u00ed n\u00e1stroje, jako je \u0161roubov\u00e1k nebo krimpovac\u00ed kle\u0161t\u011b, kter\u00e9 jsou nutn\u00e9 pro klasick\u00e9 elektrick\u00e9 kostky. Instalace je rychl\u00e1 a snadn\u00e1, co\u017e je \u017e\u00e1douc\u00ed zejm\u00e9na p\u0159i pr\u00e1ci v ter\u00e9nu a v podm\u00ednk\u00e1ch, kdy je pou\u017e\u00edvan\u00e9 n\u00e1\u0159ad\u00ed jednodu\u0161e neskladn\u00e9.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Elektrick\u00e9 kostky v krytu<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Podle technick\u00fdch specifikac\u00ed se v podstat\u011b nejedn\u00e1 o konkr\u00e9tn\u00ed, specifikovan\u00fd podtyp kostek. Skute\u010dnost, \u017ee m\u00e1 kryt<\/strong> elektrick\u00e9ho konektoru, v\u0161ak p\u0159in\u00e1\u0161\u00ed dal\u0161\u00ed v\u00fdhody. Mechanick\u00e1 ochrana, kterou kryt poskytuje, znamen\u00e1, \u017ee elektrick\u00fd konektor a vodi\u010de jsou chr\u00e1n\u011bny proti rozdrcen\u00ed nebo zlomen\u00ed. K tomuto seznamu lze p\u0159idat celou \u0159adu atmosf\u00e9rick\u00fdch faktor\u016f, jako je vlhkost, prach, d\u00e9\u0161\u0165 nebo UV z\u00e1\u0159en\u00ed. Kryt tak\u00e9 zajist\u00ed stabilitu a trvanlivost spojen\u00ed, chr\u00e1n\u00ed p\u0159ed uvoln\u011bn\u00edm a p\u0159ed ne\u00famysln\u00fdm odd\u011blen\u00edm vodi\u010d\u016f. Krom\u011b lep\u0161\u00ed elektrick\u00e9 izolace a eliminace rizika \u00farazu elektrick\u00fdm proudem z\u00edsk\u00e1me tak\u00e9 organizaci a po\u0159\u00e1dek, tj. snadn\u011bj\u0161\u00ed identifikaci a jednodu\u0161\u0161\u00ed \u0159\u00edzen\u00ed kabel\u016f.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Na co se zam\u011b\u0159it p\u0159i v\u00fdb\u011bru elektrick\u00e9 kostky?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Je obt\u00ed\u017en\u00e9 p\u0159edv\u00eddat v\u0161echny mo\u017en\u00e9 aplikace. Kostky jsou na\u0161t\u011bst\u00ed levn\u00e9 a b\u011b\u017en\u00e9 prvky. Nejd\u016fle\u017eit\u011bj\u0161\u00edm parametrem je maxim\u00e1ln\u00ed nap\u011bt\u00ed<\/strong>, kter\u00e9 m\u016f\u017ee konektorem prot\u00e9kat – pokud je tedy 250 V, je jeho ur\u010den\u00ed pro dom\u00e1c\u00ed elektrick\u00e9 instalace (obvykle 240 V).<\/p>\n

S ohledem na konkr\u00e9tn\u00ed pou\u017eit\u00ed kostky v\u011bnujte pozornost podporovan\u00e9mu pr\u016f\u0159ezu kabelu<\/strong>, kter\u00fd se obvykle ud\u00e1v\u00e1 v milimetrech. Vn\u011bj\u0161\u00ed rozm\u011bry elektrick\u00fdch kostek jsou obvykle mal\u00e9 a nep\u0159edstavuj\u00ed probl\u00e9m, ale prostor v projektech nebo uvnit\u0159 v\u011bt\u0161\u00ed instalace se m\u016f\u017ee li\u0161it – p\u0159esn\u011b ur\u010dete, kolik m\u00edsta mus\u00edte vyu\u017e\u00edt, abyste se vyhnuli p\u0159ekvapen\u00edm a v hor\u0161\u00edm p\u0159\u00edpad\u011b “vt\u011bsn\u00e1n\u00ed n\u00e1sil\u00edm”.<\/p>\n

Rastr v\u00fdvod\u016f<\/strong> naproti tomu informuje o specifikaci kostky vzd\u00e1lenosti mezi sousedn\u00edmi v\u00fdvody v dan\u00e9m elektronick\u00e9m obvodu – vyplat\u00ed se sezn\u00e1mit se s pojmem rastrov\u00e1n\u00ed v elektronice, proto\u017ee se vyskytuje nejen p\u0159i pr\u00e1ci s deskami ti\u0161t\u011bn\u00fdmi<\/a> spoji a nejen v rozvr\u017een\u00ed 2,54 mm obl\u00edben\u00e9m u elektronik\u016f. Posledn\u00ed ot\u00e1zkou je po\u010det patic<\/strong> – zde je probl\u00e9m z\u0159ejm\u00fd, proto\u017ee kolik patic, tolik vodi\u010d\u016f.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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P\u0159ipojen\u00ed elektrick\u00fdch kostek - bezpe\u010dn\u00fd provoz<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Samotn\u00e1 plastov\u00e1 kostka nemus\u00ed vypadat hroziv\u011b, ale je samoz\u0159ejm\u00e9, \u017ee proud prot\u00e9kaj\u00edc\u00ed dr\u00e1ty m\u016f\u017ee b\u00fdt zdrojem mnoha nebezpe\u010d\u00ed i pro zku\u0161en\u00e9 u\u017eivatele. Zkontrolujte, zda jsou vodi\u010de spr\u00e1vn\u011b zapojeny do kol\u00edk\u016f nebo svorek a zda jsou spoje spr\u00e1vn\u00e9.<\/strong><\/p>\n

Nespr\u00e1vn\u00e9 zapojen\u00ed m\u016f\u017ee v\u00e9st nejen ke \u0161patn\u00e9mu zapojen\u00ed a uvoln\u011bn\u00ed, ale dokonce i k elektrick\u00fdm poruch\u00e1m nebo \u00farazu elektrick\u00fdm proudem. Vzhledem k tomu, \u017ee elektrick\u00e1 kostka m\u00e1 ur\u010dit\u00fd jmenovit\u00fd proud<\/strong>, kter\u00fd by nem\u011bl b\u00fdt p\u0159ekro\u010den, je t\u0159eba se vyvarovat p\u0159ipojen\u00ed kabel\u016f, jejich\u017e celkov\u00fd proud p\u0159ekra\u010duje p\u0159\u00edpustn\u00e9 parametry kostky.<\/p>\n

P\u0159et\u00ed\u017een\u00ed proudem<\/strong> obvykle vede k p\u0159eh\u0159\u00e1t\u00ed a po\u0161kozen\u00ed kostky, v krajn\u00edm p\u0159\u00edpad\u011b i k po\u017e\u00e1ru. P\u0159et\u00ed\u017een\u00ed kostky p\u0159ebyte\u010dn\u00fdmi vodi\u010di<\/strong> m\u016f\u017ee v\u00e9st k nedostate\u010dn\u00e9mu kontaktu, sn\u00ed\u017een\u00ed bezpe\u010dnosti a ztr\u00e1t\u011b funk\u010dnosti a \u0161patn\u00e9 pov\u011btrnostn\u00ed podm\u00ednky, kdy vlhkost, prach nebo agresivn\u00ed chemik\u00e1lie p\u016fsob\u00ed na elektrickou kostku, mohou zp\u016fsobit korozi, zkrat nebo po\u0161kozen\u00ed.<\/p>\n

Zna\u010dn\u00fd v\u00fdznam p\u0159i provozu jak\u00e9hokoli elektrick\u00e9ho za\u0159\u00edzen\u00ed m\u00e1 tak\u00e9 ot\u00e1zka spr\u00e1vn\u00e9 izolace<\/strong>, jej\u00ed\u017e absence vystavuje u\u017eivatele p\u0159\u00edm\u00e9mu kontaktu s nap\u011bt\u00edm a zp\u016fsobuje nevyhnuteln\u00e9 nebezpe\u010d\u00ed pro u\u017eivatele, budovu i samotn\u00fd provoz.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Elektrick\u00e9 konektory v Botlandu<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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V sortimentu Botland<\/strong><\/a> najdete tak\u00e9 dal\u0161\u00ed elektromechanick\u00e9 d\u00edly, jako jsou patice, z\u00e1str\u010dky, propojky, koncovky vodi\u010d\u016f nebo konektory<\/strong>, kter\u00e9 jsou nezbytn\u00e9 pro vytv\u00e1\u0159en\u00ed spoj\u016f. D\u00edky p\u0159ehledn\u00fdm technick\u00fdm specifikac\u00edm a popis\u016fm v\u00fdrobk\u016f nem\u016f\u017ee b\u00fdt v\u00fdb\u011br spr\u00e1vn\u00e9ho p\u0159\u00edslu\u0161enstv\u00ed jednodu\u0161\u0161\u00ed. Spojte se s n\u00e1mi – komunikace v elektrotechnice a elektronice je na\u0161\u00ed specialitou!<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

Elektroinstala\u010dn\u00ed kostky je term\u00edn, kter\u00fd ozna\u010duje komponenty pou\u017e\u00edvan\u00e9 v elektrick\u00fdch instalac\u00edch k propojen\u00ed vodi\u010d\u016f a kabel\u016f. Podobaj\u00ed se mal\u00fdm plastov\u00fdm krabi\u010dk\u00e1m s p\u0159\u00edvody, kter\u00e9 umo\u017e\u0148uj\u00ed bezpe\u010dn\u00e9 a trval\u00e9 p\u0159ipojen\u00ed elektrick\u00fdch kabel\u016f.<\/p>\n","protected":false},"author":22,"featured_media":68389,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[548,549],"tags":[],"class_list":["post-69076","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-elektronika-cs","category-kompendium-cs"],"acf":[],"yoast_head":"\nElektrick\u00e1 kostka - Co je to a k \u010demu slou\u017e\u00ed? - Botland<\/title>\n<meta name=\"description\" content=\"Rozs\u00e1hl\u00e1 v\u011bdomostn\u00ed b\u00e1ze a nejlep\u0161\u00ed sortiment pro elektroniku, robotiku a kutilstv\u00ed - pouze v Botlandu!u!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/botland.cz\/blog\/elektricka-kostka-co-je-to-a-k-cemu-slouzi\/\" \/>\n<meta property=\"og:locale\" content=\"cs_CZ\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Elektrick\u00e1 kostka - Co je to a k \u010demu slou\u017e\u00ed? 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