{"id":18397,"date":"2025-07-14T01:44:42","date_gmt":"2025-07-13T17:44:42","guid":{"rendered":"https:\/\/viox.com\/?p=18397"},"modified":"2025-07-14T01:44:45","modified_gmt":"2025-07-13T17:44:45","slug":"how-circuit-breaker-poles-affect-voltage-current-protection","status":"publish","type":"post","link":"https:\/\/test.viox.com\/cs\/how-circuit-breaker-poles-affect-voltage-current-protection\/","title":{"rendered":"Jak p\u00f3ly jisti\u010de ovliv\u0148uj\u00ed nap\u011b\u0165ovou a proudovou ochranu"},"content":{"rendered":"<div class=\"product-intro\">\n<h2>\u00davod<\/h2>\n<p>Pochopen\u00ed konfigurace p\u00f3l\u016f jisti\u010d\u016f je z\u00e1sadn\u00ed pro elektrickou bezpe\u010dnost a \u00fa\u010dinnost syst\u00e9mu. Po\u010det p\u00f3l\u016f v jisti\u010di ud\u00e1v\u00e1 po\u010det obvod\u016f, kter\u00e9 m\u016f\u017ee za\u0159\u00edzen\u00ed chr\u00e1nit, p\u0159i\u010dem\u017e ka\u017ed\u00fd p\u00f3l p\u0159edstavuje jednotliv\u00e9 sp\u00edna\u010de v jisti\u010di, kter\u00e9 odpov\u00eddaj\u00ed r\u016fzn\u00fdm vodi\u010d\u016fm nebo f\u00e1z\u00edm elektrick\u00e9ho proudu. A\u0165 u\u017e pracujete s reziden\u010dn\u00edmi, komer\u010dn\u00edmi nebo pr\u016fmyslov\u00fdmi elektrick\u00fdmi syst\u00e9my, v\u00fdb\u011br spr\u00e1vn\u00e9 konfigurace p\u00f3l\u016f p\u0159\u00edmo ovliv\u0148uje dod\u00e1vku nap\u011bt\u00ed, proudovou ochranu a celkovou bezpe\u010dnost syst\u00e9mu.<\/p>\n<h2>Co jsou p\u00f3ly jisti\u010d\u016f?<\/h2>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone size-full wp-image-18398\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/1P-4P-Circuit-Breaker-Poles.webp\" alt=\"1P-4P Circuit Breaker Poles\" width=\"800\" height=\"466\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/1P-4P-Circuit-Breaker-Poles.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/1P-4P-Circuit-Breaker-Poles-300x175.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/1P-4P-Circuit-Breaker-Poles-768x447.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/1P-4P-Circuit-Breaker-Poles-18x10.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/1P-4P-Circuit-Breaker-Poles-600x350.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<p>P\u00f3ly jsou po\u010det zcela odd\u011blen\u00fdch obvod\u016f, kter\u00e9 mohou b\u00fdt sou\u010dasn\u011b chr\u00e1n\u011bny jisti\u010dem. P\u0159edstavte si ka\u017ed\u00fd p\u00f3l jako samostatn\u00fd sp\u00edna\u010d uvnit\u0159 jisti\u010de, kter\u00fd m\u016f\u017ee nez\u00e1visle p\u0159eru\u0161it elektrick\u00fd tok a z\u00e1rove\u0148 je mechanicky propojen s ostatn\u00edmi p\u00f3ly pro koordinovanou ochranu.<\/p>\n<h3>Kl\u00ed\u010dov\u00e9 vlastnosti ty\u010d\u00ed:<\/h3>\n<ul>\n<li><strong>Elektrick\u00e1 izolace<\/strong>Ka\u017ed\u00fd p\u00f3l pracuje na samostatn\u00fdch obvodech<\/li>\n<li><strong>Mechanick\u00e9 propojen\u00ed<\/strong>V\u00edcep\u00f3lov\u00e9 jisti\u010de se vypnou spole\u010dn\u011b, kdy\u017e jeden p\u00f3l detekuje poruchu<\/li>\n<li><strong>Rozlo\u017een\u00ed nap\u011bt\u00ed<\/strong>R\u016fzn\u00e9 konfigurace p\u00f3l\u016f poskytuj\u00ed r\u016fzn\u00e9 v\u00fdstupn\u00ed nap\u011bt\u00ed<\/li>\n<li><strong>Rozsah ochrany<\/strong>V\u00edce p\u00f3l\u016f m\u016f\u017ee chr\u00e1nit dal\u0161\u00ed vodi\u010de v\u010detn\u011b nulov\u00fdch vodi\u010d\u016f<\/li>\n<\/ul>\n<h2>Jednop\u00f3lov\u00e9 jisti\u010de (1P)<\/h2>\n<h3>Specifikace nap\u011bt\u00ed a proudu<\/h3>\n<p>Jednop\u00f3lov\u00e9 jisti\u010de poskytuj\u00ed 120 volt\u016f, obvykle jsou dimenzov\u00e1ny na 15\u201320 amp\u00e9r\u016f a maj\u00ed jeden f\u00e1zov\u00fd vodi\u010d a jeden neutr\u00e1ln\u00ed vodi\u010d. Jedn\u00e1 se o nejb\u011b\u017en\u011bj\u0161\u00ed jisti\u010de, kter\u00e9 se nach\u00e1zej\u00ed v elektrick\u00fdch rozvad\u011b\u010d\u00edch v obytn\u00fdch domech.<\/p>\n<h3>Aplikace a ochrann\u00e9 funkce<\/h3>\n<p><strong>Ide\u00e1ln\u00ed pro:<\/strong><\/p>\n<ul>\n<li>Standardn\u00ed obvody pro osv\u011btlen\u00ed dom\u00e1cnost\u00ed<\/li>\n<li>Univerz\u00e1ln\u00ed z\u00e1suvky<\/li>\n<li>Mal\u00e9 spot\u0159ebi\u010de (televizory, po\u010d\u00edta\u010de, mal\u00e9 elektrick\u00e9 n\u00e1\u0159ad\u00ed)<\/li>\n<li>Obvody vy\u017eaduj\u00edc\u00ed nap\u00e1jen\u00ed 120 V<\/li>\n<\/ul>\n<p><strong>Charakteristiky ochrany:<\/strong><\/p>\n<ul>\n<li>Chr\u00e1n\u00ed pouze hork\u00fd vodi\u010d<\/li>\n<li>Pokud se jednop\u00f3lov\u00fd jisti\u010d p\u0159et\u00ed\u017e\u00ed, vypne se pouze p\u0159\u00edslu\u0161n\u00fd jisti\u010d.<\/li>\n<li>Energeticky nej\u00fa\u010dinn\u011bj\u0161\u00ed varianta pro aplikace s n\u00edzk\u00fdm p\u0159\u00edkonem<\/li>\n<li>Zab\u00edr\u00e1 jeden slot v elektrick\u00e9m rozvad\u011b\u010di<\/li>\n<\/ul>\n<h3>Konfigurace zapojen\u00ed<\/h3>\n<p>Jednop\u00f3lov\u00e9 jisti\u010de jsou zapojeny s jedn\u00edm f\u00e1zov\u00fdm vodi\u010dem a jedn\u00edm neutr\u00e1ln\u00edm vodi\u010dem, co\u017e usnad\u0148uje jejich instalaci a \u00fadr\u017ebu v z\u00e1kladn\u00edch elektrick\u00fdch obvodech.<\/p>\n<h2>Dvoup\u00f3lov\u00e9 jisti\u010de (2P)<\/h2>\n<h3>Specifikace nap\u011bt\u00ed a proudu<\/h3>\n<p>Dvoup\u00f3lov\u00e9 jisti\u010de poskytuj\u00ed 240 volt\u016f, 20\u201360 amp\u00e9r\u016f a maj\u00ed dva f\u00e1zov\u00e9 vodi\u010de, kter\u00e9 sd\u00edlej\u00ed jeden neutr\u00e1ln\u00ed vodi\u010d. Tyto jisti\u010de jsou nezbytn\u00e9 pro vysoce v\u00fdkonn\u00e9 reziden\u010dn\u00ed a komer\u010dn\u00ed aplikace.<\/p>\n<h3>Aplikace a ochrann\u00e9 funkce<\/h3>\n<p><strong>Ide\u00e1ln\u00ed pro:<\/strong><\/p>\n<ul>\n<li>Elektrick\u00e9 spor\u00e1ky a trouby<\/li>\n<li>Centr\u00e1ln\u00ed klimatiza\u010dn\u00ed syst\u00e9my<\/li>\n<li>Elektrick\u00e9 oh\u0159\u00edva\u010de vody<\/li>\n<li>Su\u0161i\u010dky pr\u00e1dla<\/li>\n<li>V\u00ed\u0159ivky a v\u00ed\u0159ivky<\/li>\n<li>Aplikace velk\u00fdch motor\u016f<\/li>\n<\/ul>\n<p><strong>Charakteristiky ochrany:<\/strong><\/p>\n<ul>\n<li>Pokud dojde ke zkratu na \u017ehav\u00fdch vodi\u010d\u00edch kter\u00e9hokoli p\u00f3lu, oba se vypnou.<\/li>\n<li>Zaji\u0161\u0165uje sou\u010dasn\u00e9 odpojen\u00ed obou hork\u00fdch vodi\u010d\u016f<\/li>\n<li>Zab\u00edr\u00e1 dva sloty v rozvad\u011b\u010di s p\u0159ep\u00edna\u010dem, kter\u00fd je dvakr\u00e1t del\u0161\u00ed.<\/li>\n<\/ul>\n<h3>Konfigurace zapojen\u00ed<\/h3>\n<p>Dvoup\u00f3lov\u00e9 jisti\u010de jsou zapojeny se dv\u011bma f\u00e1zov\u00fdmi vodi\u010di spojen\u00fdmi jedn\u00edm neutr\u00e1ln\u00edm vodi\u010dem, co\u017e umo\u017e\u0148uje provoz na 240 V s vyu\u017eit\u00edm obou v\u011btv\u00ed bytov\u00e9 elektrick\u00e9 s\u00edt\u011b.<\/p>\n<h2>T\u0159\u00edp\u00f3lov\u00e9 jisti\u010de (3P)<\/h2>\n<h3>Aplikace pro nap\u011bt\u00ed a proud<\/h3>\n<p>T\u0159\u00edp\u00f3lov\u00e9 jisti\u010de se pou\u017e\u00edvaj\u00ed p\u0159edev\u0161\u00edm v t\u0159\u00edf\u00e1zov\u00fdch elektrick\u00fdch syst\u00e9mech b\u011b\u017en\u00fdch v komer\u010dn\u00edm a pr\u016fmyslov\u00e9m prost\u0159ed\u00ed. T\u0159\u00edp\u00f3lov\u00fd jisti\u010d se pou\u017e\u00edv\u00e1 p\u0159edev\u0161\u00edm v t\u0159\u00edf\u00e1zov\u00fdch elektrick\u00fdch syst\u00e9mech, kter\u00e9 jsou b\u011b\u017en\u00e9 ve velk\u00fdch budov\u00e1ch a pr\u016fmyslov\u00fdch aplikac\u00edch.<\/p>\n<h3>Funkce Ochrany<\/h3>\n<p><strong>Hlavn\u00ed v\u00fdhody:<\/strong><\/p>\n<ul>\n<li>Chr\u00e1n\u00ed v\u0161echny t\u0159i f\u00e1ze sou\u010dasn\u011b<\/li>\n<li>Dok\u00e1\u017ee p\u0159eru\u0161it obvod ve v\u0161ech t\u0159ech f\u00e1z\u00edch sou\u010dasn\u011b, \u010d\u00edm\u017e poskytuje komplexn\u00ed ochranu p\u0159ed p\u0159et\u00ed\u017een\u00edm a zkraty<\/li>\n<li>Efektivn\u011bj\u0161\u00ed distribuce energie pro motory a velk\u00e1 za\u0159\u00edzen\u00ed<\/li>\n<li>Zmen\u0161uje prostor v elektrick\u00e9m rozvad\u011b\u010di ve srovn\u00e1n\u00ed se t\u0159emi samostatn\u00fdmi jednop\u00f3lov\u00fdmi jisti\u010di<\/li>\n<\/ul>\n<h3>Kdy pou\u017e\u00edt 3P jisti\u010de<\/h3>\n<p>Jisti\u010d TP se pou\u017e\u00edv\u00e1 v t\u0159\u00edf\u00e1zov\u00fdch \u010dty\u0159vodi\u010dov\u00fdch syst\u00e9mech a je nejb\u011b\u017en\u011bji pou\u017e\u00edvan\u00fdm typem ve v\u0161ech b\u011b\u017en\u00fdch t\u0159\u00edf\u00e1zov\u00fdch nap\u00e1jec\u00edch s\u00edt\u00edch. Jsou ide\u00e1ln\u00ed pro:<\/p>\n<ul>\n<li>T\u0159\u00edf\u00e1zov\u00e9 motory<\/li>\n<li>Pr\u016fmyslov\u00e9 stroje<\/li>\n<li>Komer\u010dn\u00ed syst\u00e9my HVAC<\/li>\n<li>Rozvodn\u00e9 panely v komer\u010dn\u00edch budov\u00e1ch<\/li>\n<\/ul>\n<h2>\u010cty\u0159p\u00f3lov\u00e9 jisti\u010de (4P)<\/h2>\n<h3>Funkce vylep\u0161en\u00e9 ochrany<\/h3>\n<p>\u010cty\u0159p\u00f3lov\u00fd jisti\u010d nab\u00edz\u00ed podobnou funk\u010dnost jako t\u0159\u00edp\u00f3lov\u00fd jisti\u010d, s dodate\u010dn\u00fdm p\u00f3lem pro ochranu nulov\u00e9ho vodi\u010de. Tato dodate\u010dn\u00e1 ochrana se st\u00e1v\u00e1 kl\u00ed\u010dovou ve specifick\u00fdch elektrick\u00fdch situac\u00edch.<\/p>\n<h3>Kritick\u00e9 aplikace<\/h3>\n<p><strong>Kdy jsou 4P jisti\u010de nezbytn\u00e9:<\/strong><\/p>\n<p><strong>Syst\u00e9my s nevyv\u00e1\u017een\u00fdm zat\u00ed\u017een\u00edm:<\/strong><\/p>\n<p>V syst\u00e9mech s nevyv\u00e1\u017een\u00fdm zat\u00ed\u017een\u00edm, kde se zat\u00ed\u017een\u00ed jedn\u00e9 nebo v\u00edce f\u00e1z\u00ed v\u00fdrazn\u011b li\u0161\u00ed od ostatn\u00edch, m\u016f\u017ee poruchov\u00fd stav zp\u016fsobit pr\u016ftok proudu neutr\u00e1ln\u00edm vodi\u010dem.<\/p>\n<p><strong>Ochrana proti harmonick\u00fdm proud\u016fm:<\/strong><\/p>\n<p>N\u011bkter\u00e9 typy za\u0159\u00edzen\u00ed, jako jsou po\u010d\u00edta\u010de a energeticky \u00fasporn\u00e9 osv\u011btlen\u00ed, mohou generovat harmonick\u00e9 proudy, kter\u00e9 mohou zp\u016fsobit, \u017ee neutr\u00e1ln\u00ed vodi\u010d bude n\u00e9st vy\u0161\u0161\u00ed \u00farovn\u011b proudu.<\/p>\n<p><strong>Syst\u00e9my s du\u00e1ln\u00edm zdrojem nap\u00e1jen\u00ed:<\/strong><\/p>\n<p>Tam, kde m\u00e1me dvoj\u00ed nap\u00e1jen\u00ed, nap\u0159\u00edklad v gener\u00e1toru a jin\u00fdch zdroj\u00edch elektrick\u00e9 energie, je nutn\u00e9 izolovat nulov\u00fd vodi\u010d. Tam, kde je t\u0159eba nulov\u00fd vodi\u010d izolovat ve vnit\u0159n\u00ed s\u00edti, lze pou\u017e\u00edt jisti\u010d TPN nebo 4P.<\/p>\n<h3>Rozd\u00edl mezi TPN a 4P<\/h3>\n<p>TPN znamen\u00e1 4p\u00f3lov\u00e9 za\u0159\u00edzen\u00ed se 4. p\u00f3lem jako nulov\u00fdm vodi\u010dem. U TPN se ochrana vztahuje pouze na proud proch\u00e1zej\u00edc\u00ed pouze 3 p\u00f3ly (t\u0159i f\u00e1ze); pro proud proch\u00e1zej\u00edc\u00ed nulov\u00fdm p\u00f3lem neexistuje \u017e\u00e1dn\u00e1 ochrana. U 4p\u00f3lov\u00fdch jisti\u010d\u016f se ochrana vztahuje na proud proch\u00e1zej\u00edc\u00ed v\u0161emi p\u00f3ly.<\/p>\n<h2>Rozd\u00edly v nap\u011b\u0165ov\u00e9 ochran\u011b podle konfigurace p\u00f3l\u016f<\/h2>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-18400\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/Voltage-ratings-for-different-pole-configurations.webp\" alt=\"Voltage ratings for different pole configurations\" width=\"800\" height=\"533\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/Voltage-ratings-for-different-pole-configurations.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/Voltage-ratings-for-different-pole-configurations-300x200.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/Voltage-ratings-for-different-pole-configurations-768x512.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/Voltage-ratings-for-different-pole-configurations-18x12.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/Voltage-ratings-for-different-pole-configurations-600x400.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h3>Jednof\u00e1zov\u00e9 syst\u00e9my (1P a 2P)<\/h3>\n<ul>\n<li><strong>Ochrana 120 V<\/strong>Jednop\u00f3lov\u00e9 jisti\u010de chr\u00e1n\u00ed jednotliv\u00e9 obvody 120 V<\/li>\n<li><strong>Ochrana 240V<\/strong>Dvoup\u00f3lov\u00e9 jisti\u010de chr\u00e1n\u00ed z\u00e1t\u011b\u017ee 240 V t\u00edm, \u017ee chr\u00e1n\u00ed oba vodi\u010de pod nap\u011bt\u00edm.<\/li>\n<\/ul>\n<h3>T\u0159\u00edf\u00e1zov\u00e9 syst\u00e9my (3P a 4P)<\/h3>\n<ul>\n<li><strong>F\u00e1zov\u00e1 ochrana<\/strong>T\u0159\u00edp\u00f3lov\u00e9 jisti\u010de chr\u00e1n\u00ed t\u0159\u00edf\u00e1zov\u00e9 vodi\u010de<\/li>\n<li><strong>Kompletn\u00ed ochrana syst\u00e9mu<\/strong>\u010cty\u0159p\u00f3lov\u00e9 jisti\u010de p\u0159id\u00e1vaj\u00ed ochranu nulov\u00e9ho vodi\u010de pro komplexn\u00ed bezpe\u010dnost syst\u00e9mu<\/li>\n<\/ul>\n<h2>Mo\u017enosti ochrany proti proudu<\/h2>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-18401\" src=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/Maximum-current-ratings-for-different-pole-configurations.webp\" alt=\"Maximum current ratings for different pole configurations\" width=\"800\" height=\"533\" srcset=\"https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/Maximum-current-ratings-for-different-pole-configurations.webp 800w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/Maximum-current-ratings-for-different-pole-configurations-300x200.webp 300w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/Maximum-current-ratings-for-different-pole-configurations-768x512.webp 768w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/Maximum-current-ratings-for-different-pole-configurations-18x12.webp 18w, https:\/\/test.viox.com\/wp-content\/uploads\/2025\/07\/Maximum-current-ratings-for-different-pole-configurations-600x400.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/p>\n<h3>Koordinace a selektivita<\/h3>\n<p>V\u00edcep\u00f3lov\u00e9 jisti\u010de jsou elektricky izolovan\u00e9, ale mechanicky propojen\u00e9 a jsou navr\u017eeny se \u201espole\u010dn\u00fdm vyp\u00ednac\u00edm mechanismem\u201c, kter\u00fd zaji\u0161\u0165uje, \u017ee pokud se jeden p\u00f3l jisti\u010de vypne, ostatn\u00ed p\u00f3ly jisti\u010de se vypnou sou\u010dasn\u011b.<\/p>\n<h3>Rozd\u00edly ve filozofii ochrany<\/h3>\n<ul>\n<li><strong>Jednop\u00f3lov\u00fd\/dvoup\u00f3lov\u00fd<\/strong>Zam\u011b\u0159uje se na ochranu jednotliv\u00fdch obvod\u016f<\/li>\n<li><strong>T\u0159i p\u00f3ly<\/strong>Zd\u016fraz\u0148uje vyv\u00e1\u017eenou t\u0159\u00edf\u00e1zovou ochranu<\/li>\n<li><strong>\u010cty\u0159p\u00f3lov\u00fd<\/strong>Poskytuje komplexn\u00ed ochranu v\u010detn\u011b ochrany proti poruch\u00e1m nulov\u00e9ho vodi\u010de<\/li>\n<\/ul>\n<h2>Bezpe\u010dnostn\u00ed aspekty a po\u017eadavky p\u0159edpis\u016f<\/h2>\n<h3>Ochrana proti zemn\u00edmu spojen\u00ed<\/h3>\n<p>Pokud je na nulov\u00fd vodi\u010d transform\u00e1toru nainstalov\u00e1na neomezen\u00e1 zemn\u00ed ochrana, m\u011bl by m\u00edt jisti\u010d sb\u011brnicov\u00e9ho \u00faseku 4 p\u00f3ly a nejl\u00e9pe by m\u011bly m\u00edt i jisti\u010de p\u0159\u00edvodu 4 p\u00f3ly.<\/p>\n<h3>Bezpe\u010dnost neutr\u00e1ln\u00edho vodi\u010de<\/h3>\n<p>Norm\u00e1ln\u011b se nulov\u00fd vodi\u010d nesm\u00ed za \u017e\u00e1dn\u00fdch podm\u00ednek p\u0159eru\u0161it (s v\u00fdjimkou speci\u00e1ln\u00edch aplikac\u00ed) z d\u016fvodu bezpe\u010dnosti osob a za\u0159\u00edzen\u00ed. Specifick\u00e9 aplikace v\u0161ak vy\u017eaduj\u00ed p\u0159epnut\u00ed nulov\u00e9ho vodi\u010de pro \u00faplnou izolaci.<\/p>\n<h3>Bezchybn\u00e9 mechanismy<\/h3>\n<p>V\u0161echny jisti\u010de jsou navr\u017eeny s vnit\u0159n\u00edm mechanismem bez vybaven\u00ed, co\u017e je bezpe\u010dnostn\u00ed prvek, kter\u00fd znemo\u017e\u0148uje ru\u010dn\u00ed udr\u017een\u00ed kontakt\u016f sepnut\u00fdch b\u011bhem nadproudu nebo poruchy.<\/p>\n<h2>V\u00fdb\u011br spr\u00e1vn\u00e9 konfigurace p\u00f3l\u016f<\/h2>\n<h3>Rozhodovac\u00ed matice<\/h3>\n<p><strong>Pou\u017eijte jeden p\u00f3l, kdy\u017e:<\/strong><\/p>\n<ul>\n<li>Vy\u017eadov\u00e1ny obvody 120 V<\/li>\n<li>Je nutn\u00e1 individu\u00e1ln\u00ed ochrana obvodu<\/li>\n<li>Osv\u011btlen\u00ed dom\u00e1cnost\u00ed a mal\u00e9 spot\u0159ebi\u010de<\/li>\n<li>Prioritou je n\u00e1kladov\u00e1 efektivita<\/li>\n<\/ul>\n<p><strong>Pou\u017eijte dvojit\u00fd p\u00f3l, kdy\u017e:<\/strong><\/p>\n<ul>\n<li>Vy\u017eaduje se provoz na 240 V<\/li>\n<li>Vysoce v\u00fdkonn\u00e9 dom\u00e1c\u00ed spot\u0159ebi\u010de<\/li>\n<li>Pot\u0159ebn\u00e9 sou\u010dasn\u00e9 odpojen\u00ed obou aktivn\u00edch vodi\u010d\u016f<\/li>\n<\/ul>\n<p><strong>Pou\u017eijte t\u0159\u00edp\u00f3lov\u00fd, kdy\u017e:<\/strong><\/p>\n<ul>\n<li>Provoz t\u0159\u00edf\u00e1zov\u00e9ho syst\u00e9mu<\/li>\n<li>Aplikace s vyv\u00e1\u017een\u00fdm zat\u00ed\u017een\u00edm<\/li>\n<li>Standardn\u00ed komer\u010dn\u00ed\/pr\u016fmyslov\u00e9 instalace<\/li>\n<li>Neutr\u00e1ln\u00ed vodi\u010d z\u016fst\u00e1v\u00e1 na spole\u010dn\u00e9 sb\u011brnici<\/li>\n<\/ul>\n<p><strong>Pou\u017eijte \u010dty\u0159p\u00f3lov\u00fd, kdy\u017e:<\/strong><\/p>\n<ul>\n<li>P\u0159\u00edtomnost nevyv\u00e1\u017een\u00fdch t\u0159\u00edf\u00e1zov\u00fdch z\u00e1t\u011b\u017e\u00ed<\/li>\n<li>O\u010dek\u00e1van\u00e9 harmonick\u00e9 proudy<\/li>\n<li>Konfigurace s du\u00e1ln\u00edm zdrojem nap\u00e1jen\u00ed<\/li>\n<li>Vy\u017eaduje se \u00fapln\u00e1 elektrick\u00e1 izolace<\/li>\n<li>Je nutn\u00e1 ochrana citliv\u00e9ho za\u0159\u00edzen\u00ed<\/li>\n<\/ul>\n<h2>Instalace a \u00dadr\u017eba Osv\u011bd\u010den\u00fdch Postup\u016f<\/h2>\n<h3>Po\u017eadavky na prostor v rozvad\u011b\u010di<\/h3>\n<ul>\n<li>Jeden p\u00f3l: 1 slot pro panel<\/li>\n<li>Dvojit\u00fd p\u00f3l: 2 sloty pro panely<\/li>\n<li>T\u0159\u00edp\u00f3lov\u00fd: 3 sloty pro panely<\/li>\n<li>\u010cty\u0159p\u00f3lov\u00fd: 4 sloty pro panely<\/li>\n<\/ul>\n<h3>Doporu\u010den\u00ed pro profesion\u00e1ln\u00ed instalaci<\/h3>\n<p>Pro rozhodnut\u00ed, zda lze pou\u017e\u00edt t\u0159\u00edp\u00f3lov\u00e9 jisti\u010de a neutr\u00e1ln\u00ed vodi\u010d, nebo zda jsou nutn\u00e9 \u010dty\u0159p\u00f3lov\u00e9 jisti\u010de, je nutn\u00e9 prov\u00e9st vyhodnocen\u00ed syst\u00e9mu.<\/p>\n<h3>K\u00f3d Souladu<\/h3>\n<p>P\u0159i v\u00fdb\u011bru konfigurace p\u00f3l\u016f jisti\u010d\u016f se v\u017edy \u0159i\u010fte m\u00edstn\u00edmi elektrotechnick\u00fdmi p\u0159edpisy a normami. Odborn\u00e9 posouzen\u00ed zaji\u0161\u0165uje spr\u00e1vnou koordinaci ochran a bezpe\u010dnost syst\u00e9mu.<\/p>\n<h2>Z\u00e1v\u011br<\/h2>\n<p>Po\u010det p\u00f3l\u016f v jisti\u010d\u00edch v\u00fdznamn\u011b ovliv\u0148uje jak dod\u00e1vku nap\u011bt\u00ed, tak i schopnost ochrany proti proudu. Jednop\u00f3lov\u00e9 a dvoup\u00f3lov\u00e9 jisti\u010de efektivn\u011b slou\u017e\u00ed pot\u0159eb\u00e1m dom\u00e1cnost\u00ed, zat\u00edmco t\u0159\u00edp\u00f3lov\u00e9 a \u010dty\u0159p\u00f3lov\u00e9 konfigurace poskytuj\u00ed komplexn\u00ed ochranu pot\u0159ebnou pro komer\u010dn\u00ed a pr\u016fmyslov\u00e9 aplikace.<\/p>\n<p>Kl\u00ed\u010dov\u00e9 poznatky pro elektrotechniky:<\/p>\n<ul>\n<li>P\u0159izp\u016fsobte konfiguraci p\u00f3l\u016f po\u017eadavk\u016fm na nap\u011bt\u00ed syst\u00e9mu<\/li>\n<li>P\u0159i v\u00fdb\u011bru 3P vs. 4P zva\u017ete charakteristiky z\u00e1t\u011b\u017ee a vyv\u00e1\u017een\u00ed<\/li>\n<li>Vyhodno\u0165te potenci\u00e1l neutr\u00e1ln\u00edho proudu v prost\u0159ed\u00ed s vysok\u00fdm obsahem harmonick\u00fdch<\/li>\n<li>Zajist\u011bte spr\u00e1vnou koordinaci s ochrann\u00fdmi za\u0159\u00edzen\u00edmi p\u0159ed a za proudem<\/li>\n<\/ul>\n<p>Pochopen\u00ed t\u011bchto rozd\u00edl\u016f umo\u017e\u0148uje informovan\u00e1 rozhodnut\u00ed, kter\u00e1 zvy\u0161uj\u00ed bezpe\u010dnost, spolehlivost a shodu elektrick\u00fdch syst\u00e9m\u016f s p\u0159edpisy u v\u0161ech typ\u016f instalac\u00ed.<\/p>\n<h2>Souvisej\u00edc\u00ed<\/h2>\n<p><a href=\"https:\/\/test.viox.com\/cs\/how-to-choose-the-right-miniature-circuit-breaker\/\">Jak vybrat spr\u00e1vn\u00fd miniaturn\u00ed jisti\u010d: Jak si vybrat nejvhodn\u011bj\u0161\u00ed miniaturn\u00ed obvod: Kompletn\u00ed technick\u00fd pr\u016fvodce<\/a><\/p>\n<p><a href=\"https:\/\/test.viox.com\/cs\/2-pole-vs-3-pole-breaker\/\">2p\u00f3lov\u00fd vs. 3p\u00f3lov\u00fd jisti\u010d: Kompletn\u00ed pr\u016fvodce<\/a><\/p>\n<p><a href=\"https:\/\/test.viox.com\/cs\/how-to-replace-a-circuit-breaker\/\">Jak vym\u011bnit jisti\u010d<\/a><\/p>\n<p><a href=\"https:\/\/test.viox.com\/cs\/what-is-a-dc-circuit-breaker\/\">Co je to DC jisti\u010d<\/a><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Introduction Understanding circuit breaker pole configurations is crucial for electrical safety and system efficiency. The number of poles in a circuit breaker refers to the number of circuits the device can protect, with each pole representing individual switches within the breaker that correspond to different wires or phases of electricity. Whether you&#8217;re working with residential, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":18402,"comment_status":"closed","ping_status":"open","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-18397","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\/18397","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=18397"}],"version-history":[{"count":0,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/posts\/18397\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/media\/18402"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/media?parent=18397"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/categories?post=18397"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/tags?post=18397"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}