{"id":1200,"date":"2026-09-21T01:26:41","date_gmt":"2026-09-21T01:26:41","guid":{"rendered":"https:\/\/ritoks.com\/?p=1200"},"modified":"2026-09-21T01:26:41","modified_gmt":"2026-09-21T01:26:41","slug":"dc-surge-protective-device-selection-guide","status":"publish","type":"post","link":"https:\/\/ritoks.com\/cs\/dc-surge-protective-device-selection-guide\/","title":{"rendered":"Pr\u016fvodce v\u00fdb\u011brem za\u0159\u00edzen\u00ed na ochranu proti p\u0159ep\u011bt\u00ed v stejnosm\u011brn\u00e9m proudu: UCPV, In, Imax a Up"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Za\u0159\u00edzen\u00ed na ochranu proti p\u0159ep\u011bt\u00ed v stejnosm\u011brn\u00e9m proudu nelze specifikovat pouze jednou hodnotou v kA. Fotovoltaick\u00fd nebo jin\u00fd stejnosm\u011brn\u00fd syst\u00e9m m\u00e1 ur\u010dit\u00fd rozsah nap\u011bt\u00ed, kontext uzemn\u011bn\u00ed a topologie, zam\u00fd\u0161len\u00e9 m\u00edsto instalace a p\u0159esnou konfiguraci za\u0159\u00edzen\u00ed na ochranu proti p\u0159ep\u011bt\u00ed (SPD). Probl\u00e9m p\u0159i n\u00e1kupu spo\u010d\u00edv\u00e1 v z\u00edsk\u00e1n\u00ed t\u011bchto \u00fadaj\u016f, aby dodavatel mohl ur\u010dit za\u0159\u00edzen\u00ed, kter\u00e9 lze objednat, a dokumenty, kter\u00e9 jeho pou\u017eit\u00ed podporuj\u00ed. P\u0159ep\u011b\u0165ov\u00e1 ochrana pro st\u0159\u00eddav\u00fd proud (AC SPD) s podobn\u00fdm \u0161t\u00edtkem na p\u0159edn\u00ed stran\u011b nen\u00ed d\u016fkazem vhodnosti pro stejnosm\u011brn\u00fd proud.<\/p>\n\n<p class=\"wp-block-paragraph\">Tento \u010dl\u00e1nek se zab\u00fdv\u00e1 podklady pro v\u00fdb\u011br na stran\u011b stejnosm\u011brn\u00e9ho proudu, zejm\u00e9na u fotovoltaick\u00fdch projekt\u016f. Nenahrazuje posouzen\u00ed rizika p\u0159ep\u011bt\u00ed, n\u00e1vrh ochrany p\u0159ed bleskem ani instala\u010dn\u00ed pokyny v\u00fdrobce. Veli\u010diny Type, UCPV\/Uc, In, Imax a Up je t\u0159eba porovn\u00e1vat jako samostatn\u011b definovan\u00e9 charakteristiky v r\u00e1mci p\u0159esn\u011b stejn\u00e9ho z\u00e1znamu o modelu.<\/p>\n\n\n<figure data-spectra-id=\"spectra-f1834a8f-933e-4f7d-a47d-f80df239a158\" class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-HERO-01.webp\" alt=\"Univerz\u00e1ln\u00ed za\u0159\u00edzen\u00ed na ochranu proti p\u0159ep\u011bt\u00ed stejnosm\u011brn\u00e9ho proudu v kontextu fotovoltaiky\" class=\"wp-image-1235\" width=\"1600\" height=\"900\" srcset=\"https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-HERO-01.webp 1600w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-HERO-01-600x338.webp 600w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-HERO-01-300x169.webp 300w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-HERO-01-1024x576.webp 1024w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-HERO-01-768x432.webp 768w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-HERO-01-1536x864.webp 1536w\" sizes=\"auto, (max-width: 1600px) 100vw, 1600px\" \/><\/figure>\n\n\n<h2 class=\"wp-block-heading\">P\u0159ehled v\u00fdb\u011brov\u00fdch krit\u00e9ri\u00ed<\/h2>\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Vstup<\/th><th>Co zaznamen\u00e1v\u00e1 kupuj\u00edc\u00ed<\/th><th>Co mus\u00ed v\u00fdrobce prok\u00e1zat<\/th><\/tr><\/thead><tbody><tr><td>Syst\u00e9m<\/td><td>Zdroj PV\/DC, maxim\u00e1ln\u00ed nap\u011bt\u00ed, uzemn\u011bn\u00ed a kontext za\u0159\u00edzen\u00ed<\/td><td>\u017d\u00e1dost uchaze\u010de o p\u0159ijet\u00ed na DC<\/td><\/tr><tr><td>Um\u00edst\u011bn\u00ed<\/td><td>Navrhovan\u00e9 za\u0159azen\u00ed do syst\u00e9mu a kontext vn\u011bj\u0161\u00edho ochrany p\u0159ed bleskem<\/td><td>Vhodn\u00fd typ a konfigurace SPD pro uveden\u00fd n\u00e1vrh<\/td><\/tr><tr><td>Trval\u00e9 nap\u011bt\u00ed<\/td><td>Maxim\u00e1ln\u00ed nap\u011bt\u00ed v m\u00edst\u011b navrhovan\u00e9ho um\u00edst\u011bn\u00ed SPD<\/td><td>Ozna\u010den\u00ed UCPV nebo Uc a specifikace p\u0159esn\u00e9ho modelu<\/td><\/tr><tr><td>\u00dadaje o v\u00fdboji<\/td><td>Po\u017eadavky na ochranu p\u0159ed p\u0159ep\u011bt\u00edm v r\u00e1mci projektu<\/td><td>V a Imax, v\u010detn\u011b definic a zku\u0161ebn\u00edch podm\u00ednek<\/td><\/tr><tr><td>\u00darove\u0148 ochrany<\/td><td>Po\u017eadavky na vybaven\u00ed a syst\u00e9m<\/td><td>Zde najdete p\u0159esnou konfiguraci<\/td><\/tr><tr><td>P\u0159ipojen\u00ed<\/td><td>Je t\u0159eba prov\u011b\u0159it topologii a uspo\u0159\u00e1d\u00e1n\u00ed v\u0161ech ochrann\u00fdch za\u0159\u00edzen\u00ed<\/td><td>P\u0159esn\u00e9 pokyny k zapojen\u00ed a ochran\u011b na vstupu<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h2 class=\"wp-block-heading\">P\u0159ed p\u0159e\u010dten\u00edm \u0161t\u00edtku SPD si ujasn\u011bte, k \u010demu se za\u0159\u00edzen\u00ed na stran\u011b stejnosm\u011brn\u00e9ho proudu pou\u017e\u00edv\u00e1<\/h2>\n\n<p class=\"wp-block-paragraph\">Uve\u010fte, zda se jedn\u00e1 o fotovoltaick\u00e9 pole, sb\u011brnici, stejnosm\u011brn\u00fd vstup st\u0159\u00edda\u010de nebo jin\u00fd specifikovan\u00fd stejnosm\u011brn\u00fd syst\u00e9m. Uve\u010fte maxim\u00e1ln\u00ed nap\u011bt\u00ed relevantn\u00ed pro navrhovan\u00e9 um\u00edst\u011bn\u00ed p\u0159ep\u011b\u0165ov\u00e9 ochrany (SPD), nikoli pouze jmenovit\u00fd popis syst\u00e9mu. Po\u017e\u00e1dejte projektanta o informace ohledn\u011b uspo\u0159\u00e1d\u00e1n\u00ed uzemn\u011bn\u00ed a zam\u00fd\u0161len\u00e9ho um\u00edst\u011bn\u00ed ochrany. Tyto \u00fadaje ovliv\u0148uj\u00ed p\u0159\u00edslu\u0161nou konfiguraci p\u0159ep\u011b\u0165ov\u00e9 ochrany; tento \u010dl\u00e1nek nevyvozuje \u017e\u00e1dn\u00e9 z\u00e1v\u011bry pouze na z\u00e1klad\u011b fotografie nebo po\u010dtu sloup\u016f.<\/p>\n\n<p class=\"wp-block-paragraph\">Pokyny spole\u010dnosti Phoenix Contact k ochran\u011b proti p\u0159ep\u011bt\u00ed ve fotovoltaick\u00fdch syst\u00e9mech se zab\u00fdvaj\u00ed r\u016fzn\u00fdmi instala\u010dn\u00edmi kontexty a rozli\u0161uj\u00ed um\u00edst\u011bn\u00ed na stran\u011b st\u0159\u00eddav\u00e9ho (AC) a stejnosm\u011brn\u00e9ho (DC) proudu. Uveden\u00e9 p\u0159\u00edklady vych\u00e1zej\u00ed z vlastn\u00edch syst\u00e9mov\u00fdch doporu\u010den\u00ed spole\u010dnosti Phoenix Contact. Pou\u017eijte je k tomu, abyste pochopili, na jak\u00e9 ot\u00e1zky ohledn\u011b projektu se pt\u00e1t, nikoli jako sch\u00e9ma zapojen\u00ed nebo univerz\u00e1ln\u00ed p\u0159edpis pro produkty RITOKS. Pokud nejsou k dispozici informace o ochran\u011b p\u0159ed bleskem a expozici v r\u00e1mci projektu, ozna\u010dte to jako otev\u0159en\u00fd vstup pro n\u00e1vrh.<\/p>\n\n<h2 class=\"wp-block-heading\">Co \u0159\u00edkaj\u00ed UCPV, In, Imax a Up<\/h2>\n\n<p class=\"wp-block-paragraph\">UCPV je ozna\u010den\u00ed pro maxim\u00e1ln\u00ed trval\u00e9 nap\u011bt\u00ed pou\u017e\u00edvan\u00e9 zejm\u00e9na v oblasti fotovoltaiky; v n\u011bkter\u00fdch technick\u00fdch listech produkt\u016f pro stejnosm\u011brn\u00fd proud se pou\u017e\u00edv\u00e1 ozna\u010den\u00ed Uc. Je t\u0159eba se \u0159\u00eddit p\u0159esn\u00fdm symbolem dan\u00e9ho za\u0159\u00edzen\u00ed a kontextem zkou\u0161ky, m\u00edsto aby se p\u0159edpokl\u00e1dalo, \u017ee tyto ozna\u010den\u00ed jsou zam\u011bniteln\u00e9 nap\u0159\u00ed\u010d v\u0161emi technologiemi. Porovnejte zdokumentovanou mez trval\u00e9ho nap\u011bt\u00ed s maxim\u00e1ln\u00edm mo\u017en\u00fdm nap\u011bt\u00edm dan\u00e9ho projektu. Hodnota odvozen\u00e1 pouze z jmenovit\u00e9ho provozn\u00edho nap\u011bt\u00ed by mohla opomenout vy\u0161\u0161\u00ed nap\u011bt\u00ed jinde v syst\u00e9mu.<\/p>\n\n<p class=\"wp-block-paragraph\">In a Imax p\u0159edstavuj\u00ed r\u016fzn\u00e9 charakteristiky v\u00fdbojov\u00e9ho proudu. Nevym\u011b\u0148uj\u00ed se navz\u00e1jem ani p\u0159\u00edmo neur\u010duj\u00ed ochrann\u00e9 nap\u011bt\u00ed, kter\u00e9mu je za\u0159\u00edzen\u00ed vystaveno. Up je charakteristika \u00farovn\u011b ochrany, kterou je t\u0159eba odvodit z p\u0159esn\u00e9 konfigurace a p\u0159\u00edslu\u0161n\u00fdch zku\u0161ebn\u00edch podm\u00ednek. Vy\u0161\u0161\u00ed hodnota Imax nen\u00ed automaticky nejvhodn\u011bj\u0161\u00edm \u0159e\u0161en\u00edm pro po\u017eadavky na \u00farove\u0148 ochrany dan\u00e9ho projektu. Pokud bro\u017eura uv\u00e1d\u00ed hodnoty pro n\u011bkolik variant v jedn\u00e9 tabulce, zachovejte v\u0161echna pole ve stejn\u00e9m \u0159\u00e1dku.<\/p>\n\n\n\n\n<figure data-spectra-id=\"spectra-eb7190ba-7373-4fd5-a0da-18113e64735a\" class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-BODY-01.webp\" alt=\"Koncep\u010dn\u00ed role protein\u016f UCPV, Uc, In, Imax a Up p\u0159i v\u00fdb\u011bru SPD v DC\" class=\"wp-image-1236\" width=\"1400\" height=\"1050\" srcset=\"https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-BODY-01.webp 1400w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-BODY-01-600x450.webp 600w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-BODY-01-300x225.webp 300w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-BODY-01-1024x768.webp 1024w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-BODY-01-768x576.webp 768w\" sizes=\"auto, (max-width: 1400px) 100vw, 1400px\" \/><figcaption class=\"wp-element-caption\">Na\u010dt\u011bte hodnoty UCPV\/Uc, In, Imax a Up najednou z jedn\u00e9 konkr\u00e9tn\u00ed konfigurace.<\/figcaption><\/figure>\n\n\n<h2 class=\"wp-block-heading\">Zjist\u011bte topologii a po\u017eadavky na z\u00e1lohov\u00e1n\u00ed z jednoho konkr\u00e9tn\u00edho za\u0159\u00edzen\u00ed<\/h2>\n\n<p class=\"wp-block-paragraph\">Popis \u201c2P\u201d nebo \u201c3P\u201d \u010dten\u00e1\u0159i ne\u0159\u00edk\u00e1, jak p\u0159ipojit fotovoltaick\u00e9 SPD. Vy\u017e\u00e1dejte si konkr\u00e9tn\u00ed sch\u00e9ma zapojen\u00ed, informace o uzemn\u011bn\u00ed a pokyny v\u00fdrobce pro danou objednatelnou variantu. Zjist\u011bte tak\u00e9, zda v\u00fdrobce vy\u017eaduje, omezuje nebo specifikuje pou\u017eit\u00ed ochrann\u00e9ho za\u0159\u00edzen\u00ed um\u00edst\u011bn\u00e9ho p\u0159ed SPD. Nevyb\u00edrejte pojistku ani jisti\u010d na z\u00e1klad\u011b jmenovit\u00e9ho vypou\u0161t\u011bc\u00edho v\u00fdkonu SPD; ka\u017ed\u00e1 navrhovan\u00e1 kombinace mus\u00ed m\u00edt vlastn\u00ed zdokumentovan\u00fd z\u00e1klad.<\/p>\n\n<p class=\"wp-block-paragraph\">Zaznamenejte jak\u00e9koli \u00fadaje o stavu nebo po\u017eadavky na vym\u011bniteln\u00e9 moduly jako preferenci p\u0159i objedn\u00e1vce a pot\u00e9 ov\u011b\u0159te, zda je vybran\u00fd k\u00f3d skute\u010dn\u011b zahrnuje. Obr\u00e1zek produktov\u00e9 \u0159ady m\u016f\u017ee zobrazovat mo\u017enosti, kter\u00e9 ve zvolen\u00e9 verzi nejsou k dispozici. Tyto podrobnosti jsou d\u016fle\u017eit\u00e9 pro \u00fadr\u017ebu a n\u00e1kup, nem\u011bn\u00ed v\u0161ak z\u00e1kladn\u00ed po\u017eadavky na nap\u011bt\u00ed a odolnost proti p\u0159ep\u011bt\u00ed.<\/p>\n\n<h2 class=\"wp-block-heading\">Porovn\u00e1n\u00ed nab\u00eddek podle kompletn\u00edch sad parametr\u016f<\/h2>\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>Ot\u00e1zka<\/th><th>Srovnateln\u00e9 d\u016fkazy<\/th><th>Nedostate\u010dn\u00e9 d\u016fkazy<\/th><\/tr><\/thead><tbody><tr><td>Pou\u017eit\u00ed stejnosm\u011brn\u00e9ho proudu<\/td><td>P\u0159esn\u00e9 ozna\u010den\u00ed DC\/PV a objednac\u00ed k\u00f3d<\/td><td>Str\u00e1nka v\u011bnovan\u00e1 pouze AC nebo nesouvisej\u00edc\u00ed rodinn\u00e1 fotografie<\/td><\/tr><tr><td>Nap\u011bt\u00ed<\/td><td>UCPV\/Uc pro vybran\u00fd model a maxim\u00e1ln\u00ed hodnotu syst\u00e9mu<\/td><td>Pouze jmenovit\u00e9 nap\u011bt\u00ed<\/td><\/tr><tr><td>\u00dadaje o \u0161pi\u010dk\u00e1ch<\/td><td>In, Imax a Up spole\u010dn\u011b s jejich testovac\u00edm kontextem<\/td><td>Nadpis o hodnot\u011b jednoho kA<\/td><\/tr><tr><td>Topologie<\/td><td>P\u0159esn\u00fd sch\u00e9ma zapojen\u00ed a pokyny k z\u00e1lohov\u00e1n\u00ed<\/td><td>Po\u010det ty\u010d\u00ed bez sch\u00e9matu<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<p class=\"wp-block-paragraph\">Z\u00e1kazn\u00edk by m\u011bl porovn\u00e1vat nab\u00eddky na z\u00e1klad\u011b stejn\u00fdch projektov\u00fdch podklad\u016f, nikoli hodnotit izolovan\u00e9 hlavn\u00ed \u00fadaje. Pokud u jedn\u00e9 z nab\u00eddek chyb\u00ed n\u011bjak\u00fd parametr nebo je k n\u00ed p\u0159ilo\u017een sch\u00e9ma pro sousedn\u00ed model, je t\u0159eba po\u017e\u00e1dat o spr\u00e1vn\u00fd dokument. Skute\u010dnost, \u017ee v prodejn\u00ed nab\u00eddce nen\u00ed uveden po\u017eadavek na z\u00e1lo\u017en\u00ed syst\u00e9m, je\u0161t\u011b neznamen\u00e1, \u017ee nen\u00ed zapot\u0159eb\u00ed \u017e\u00e1dn\u00e1 ochrana na vstupu.<\/p>\n\n<p class=\"wp-block-paragraph\">Typ SPD a \u010dty\u0159i elektrick\u00e9 parametry zaznamenejte do jedin\u00e9ho srovn\u00e1vac\u00edho z\u00e1znamu. Nem\u00edchejte nejni\u017e\u0161\u00ed hodnotu Up z jedn\u00e9 konfigurace s hodnotami UCPV nebo vyb\u00edjec\u00edho proudu z jin\u00e9 konfigurace. Poznamenejte, zda dan\u00e1 hodnota pat\u0159\u00ed k cel\u00e9mu za\u0159\u00edzen\u00ed, nebo k vym\u011bniteln\u00e9mu modulu, a zaznamenejte revizi dokumentu. T\u00edm se zabr\u00e1n\u00ed tomu, aby se v tabulce pro zad\u00e1v\u00e1n\u00ed zak\u00e1zek vytvo\u0159ila konfigurace, kterou v\u00fdrobce nikdy nenab\u00edzel.<\/p>\n\n\n\n\n<figure data-spectra-id=\"spectra-d9dd2267-eaed-46f3-8eb6-a4084baccd36\" class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-BODY-02.webp\" alt=\"Mapa d\u016fkaz\u016f pro jeden kompletn\u00ed z\u00e1znam konfigurace SPD v DC\" class=\"wp-image-1237\" width=\"1400\" height=\"1050\" srcset=\"https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-BODY-02.webp 1400w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-BODY-02-600x450.webp 600w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-BODY-02-300x225.webp 300w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-BODY-02-1024x768.webp 1024w, https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-BODY-02-768x576.webp 768w\" sizes=\"auto, (max-width: 1400px) 100vw, 1400px\" \/><figcaption class=\"wp-element-caption\">Uchov\u00e1vejte informace o um\u00edst\u011bn\u00ed, elektrick\u00fdch hodnot\u00e1ch, topologii a pokynech pro z\u00e1lohov\u00e1n\u00ed p\u0159i\u0159azen\u00e9 k jednomu konkr\u00e9tn\u00edmu za\u0159\u00edzen\u00ed.<\/figcaption><\/figure>\n\n\n<h2 class=\"wp-block-heading\">Pracovn\u00ed postup pro kupuj\u00edc\u00ed a p\u0159\u00edprava popt\u00e1vky<\/h2>\n\n<ul class=\"wp-block-list\"><li>Zaznamenejte typ zdroje, maxim\u00e1ln\u00ed nap\u011bt\u00ed, zam\u00fd\u0161len\u00e9 um\u00edst\u011bn\u00ed SPD, podm\u00ednky uzemn\u011bn\u00ed a ochrany p\u0159ed bleskem.<\/li><li>Zeptejte se p\u0159\u00edslu\u0161n\u00e9ho projektanta, jak\u00e1 ochrann\u00e1 funkce a jak\u00fd typ ochrany jsou pro dan\u00e9 m\u00edsto po\u017eadov\u00e1ny.<\/li><li>Z\u00edskejte p\u0159esn\u00e9 k\u00f3dy objedn\u00e1vek a \u00fadaje o parametrech UCPV\/Uc, In, Imax a Up pro konkr\u00e9tn\u00ed modely v\u010detn\u011b zku\u0161ebn\u00edch podm\u00ednek.<\/li><li>Vy\u017e\u00e1dejte si p\u0159esn\u00e9 sch\u00e9ma zapojen\u00ed, n\u00e1vod k pou\u017eit\u00ed ochrann\u00fdch za\u0159\u00edzen\u00ed na vstupu a ve\u0161ker\u00e9 podrobnosti o vym\u011bniteln\u00fdch modulech.<\/li><li>Porovn\u00e1vejte pouze \u00fapln\u00e9 konfigura\u010dn\u00ed \u0159\u00e1dky; nevy\u0159e\u0161en\u00e9 ot\u00e1zky t\u00fdkaj\u00edc\u00ed se syst\u00e9mu nebo dokumentace vra\u0165te zp\u011bt k posouzen\u00ed technick\u00fdm odd\u011blen\u00edm.<\/li><li>V popt\u00e1vce uve\u010fte mno\u017estv\u00ed, m\u00edsto ur\u010den\u00ed a po\u017eadovan\u00e9 doklady, ani\u017e byste uv\u00e1d\u011bli neov\u011b\u0159en\u00e9 p\u00e1rov\u00e1n\u00ed.<\/li><\/ul>\n\n<h2 class=\"wp-block-heading\">Zve\u0159ejn\u011bn\u00e9 p\u0159\u00edklady RITOKS DC SPD<\/h2>\n\n<p class=\"wp-block-paragraph\">Spole\u010dnost RITOKS zve\u0159ej\u0148uje samostatn\u00e9 \u0159ady produkt\u016f RTS-SPD40-PV a LT1 DC PV SPD. Jedn\u00e1 se o str\u00e1nky s p\u0159\u00edklady produkt\u016f, nikoli o jednu slou\u010denou tabulku specifikac\u00ed. Hodnotu spojenou s konfigurac\u00ed LT1 nelze p\u0159i\u0159adit \u0159ad\u011b RTS-SPD40-PV, ani nelze pro \u017e\u00e1dnou z \u0159ad DC p\u0159evz\u00edt klasifikaci typu 2 nebo jmenovit\u00fd v\u00fdkon AC SPD. Vych\u00e1zejte z p\u0159esn\u00e9ho \u0159\u00e1dku produktu a vy\u017e\u00e1dejte si odpov\u00eddaj\u00edc\u00ed doklady od v\u00fdrobce.<\/p>\n\n<p class=\"wp-block-paragraph\">V p\u0159\u00edpad\u011b dotazu ohledn\u011b v\u00fdm\u011bny p\u0159ilo\u017ete fotografie pouze jako podp\u016frn\u00fd identifika\u010dn\u00ed materi\u00e1l a v\u017edy uve\u010fte st\u00e1vaj\u00edc\u00ed k\u00f3d objedn\u00e1vky a technick\u00fd list, je-li k dispozici. V p\u0159\u00edpad\u011b nov\u00e9ho projektu uve\u010fte typ SPD a um\u00edst\u011bn\u00ed, jak je uvedeno v projektu, nam\u00edsto toho, abyste \u017e\u00e1dali dodavatele, aby odvodil kompletn\u00ed koncepci ochrany pouze na z\u00e1klad\u011b jmenovit\u00fdch parametr\u016f st\u0159\u00edda\u010de. V obou p\u0159\u00edpadech neberte schv\u00e1len\u00ed instalace v \u00favahu p\u0159i srovn\u00e1n\u00ed nab\u00eddek, dokud nebudou p\u0159ezkoum\u00e1ny p\u0159esn\u00e9 dokumenty.<\/p>\n\n<h2 class=\"wp-block-heading\">Zaznamen\u00e1v\u00e1n\u00ed \u00fadaj\u016f o um\u00edst\u011bn\u00ed, v\u00fdm\u011bn\u011b a \u00fadr\u017eb\u011b<\/h2>\n\n<p class=\"wp-block-paragraph\">Jeden projekt m\u016f\u017ee obsahovat v\u00edce ne\u017e jedno m\u00edsto s p\u0159ep\u011b\u0165ovou ochranou a ka\u017ed\u00e9 z t\u011bchto m\u00edst m\u016f\u017ee m\u00edt odli\u0161n\u00e9 elektrick\u00e9 podm\u00ednky a podm\u00ednky vystaven\u00ed. V popt\u00e1vce p\u0159i\u0159a\u010fte ka\u017ed\u00e9mu navrhovan\u00e9mu um\u00edst\u011bn\u00ed p\u0159ep\u011b\u0165ov\u00e9 ochrany jednozna\u010dn\u00fd identifik\u00e1tor. P\u0159ilo\u017ete informace o syst\u00e9mu pro dan\u00e9 um\u00edst\u011bn\u00ed poskytnut\u00e9 projektantem, m\u00edsto abyste popisovali celou instalaci jedn\u00edm nap\u011b\u0165ov\u00fdm ozna\u010den\u00edm. T\u00edm zabr\u00e1n\u00edte tomu, aby bylo za\u0159\u00edzen\u00ed ur\u010den\u00e9 pro jedno um\u00edst\u011bn\u00ed porovn\u00e1v\u00e1no s kandid\u00e1tem zdokumentovan\u00fdm pro jinou roli.<\/p>\n\n<p class=\"wp-block-paragraph\">P\u0159i v\u00fdm\u011bn\u011b zaznamenejte kompletn\u00ed k\u00f3dy za\u0159\u00edzen\u00ed a vym\u011bniteln\u00fdch modul\u016f, p\u016fvodn\u00ed dokumentaci k zapojen\u00ed a p\u0159\u00edpadn\u00e9 po\u017eadavky na p\u0159ed\u0159azen\u00e1 ochrann\u00e1 za\u0159\u00edzen\u00ed. Z\u00e1suvn\u00fd modul, kter\u00fd zapad\u00e1 do z\u00e1kladny, nemus\u00ed b\u00fdt automaticky spr\u00e1vnou n\u00e1hradou. Zjist\u011bte, zda je sou\u010d\u00e1st\u00ed p\u0159esn\u00e9 konfigurace indikace stavu, d\u00e1lkov\u00e9 signalizace nebo k\u00f3dov\u00e1n\u00ed modulu. Tyto \u00fadr\u017ebov\u00e9 vlastnosti pat\u0159\u00ed do objedn\u00e1vkov\u00e9ho z\u00e1znamu, nesm\u00ed se v\u0161ak pou\u017e\u00edvat k odvozen\u00ed z\u00e1kladn\u00edch charakteristik p\u0159ep\u011bt\u00ed nebo nap\u011bt\u00ed.<\/p>\n\n<h2 class=\"wp-block-heading\">Podm\u00ednky zastaven\u00ed a z\u00e1znam o schv\u00e1len\u00ed<\/h2>\n\n<p class=\"wp-block-paragraph\">Porovn\u00e1n\u00ed neukon\u010dujte, pokud z\u016fst\u00e1v\u00e1 nejasn\u00e9 maxim\u00e1ln\u00ed syst\u00e9mov\u00e9 nap\u011bt\u00ed, podm\u00ednky uzemn\u011bn\u00ed, po\u017eadovan\u00fd typ SPD nebo navrhovan\u00e9 um\u00edst\u011bn\u00ed. Zastavte se tak\u00e9 v p\u0159\u00edpad\u011b, \u017ee hodnoty UCPV nebo Uc, In, Imax a Up poch\u00e1zej\u00ed z r\u016fzn\u00fdch variant, nebo pokud jedin\u00fdm d\u016fkazem o p\u0159ipojen\u00ed je obecn\u00fd obr\u00e1zek \u0159ady. Tyto mezery nelze vy\u0159e\u0161it v\u00fdb\u011brem nejv\u011bt\u0161\u00ed hodnoty vyb\u00edjec\u00edho proudu. Vy\u017eaduj\u00ed, aby projektant a v\u00fdrobce stanovili jednu ucelenou konfiguraci.<\/p>\n\n<p class=\"wp-block-paragraph\">Z\u00e1znam o schv\u00e1len\u00ed by m\u011bl obsahovat syst\u00e9mov\u00fd vstup, p\u0159esn\u00fd k\u00f3d za\u0159\u00edzen\u00ed, \u0159\u00e1dek parametr\u016f, topologick\u00fd n\u00e1kres, pokyny k ochran\u011b z\u00e1loh a revize dokument\u016f v jednom souboru. Dodavatel m\u016f\u017ee potvrdit dostupnost a dokumentaci; odb\u011bratel m\u016f\u017ee porovnat kompletn\u00ed nab\u00eddky; odpov\u011bdn\u00fd projektant potvrd\u00ed koncepci ochrany a instalaci. \u017d\u00e1dost o nab\u00eddku, kter\u00e1 dodr\u017euje tyto hranice, je u\u017eite\u010dn\u00e1 i v p\u0159\u00edpad\u011b, \u017ee n\u011bkter\u00e9 technick\u00e9 parametry jsou je\u0161t\u011b otev\u0159en\u00e9, proto\u017ee chyb\u011bj\u00edc\u00ed \u00fadaje z\u016fst\u00e1vaj\u00ed viditeln\u00e9, m\u00edsto aby byly nahrazeny p\u0159edpoklady.<\/p>\n\n<p class=\"wp-block-paragraph\">P\u0159i pl\u00e1nov\u00e1n\u00ed \u00fadr\u017eby si ov\u011b\u0159te, jak\u00fdm zp\u016fsobem konkr\u00e9tn\u00ed za\u0159\u00edzen\u00ed oznamuje stav konce \u017eivotnosti a zda m\u00e1 n\u00e1hradn\u00ed modul samostatn\u00fd objednac\u00ed k\u00f3d. Tyto \u00fadaje zaznamenejte pouze v p\u0159\u00edpad\u011b, \u017ee jsou pro vybranou konfiguraci zdokumentov\u00e1ny. Mohou m\u00edt vliv na n\u00e1kup n\u00e1hradn\u00edch d\u00edl\u016f a postupy kontroly, nenahrazuj\u00ed v\u0161ak posouzen\u00ed rizika p\u0159ep\u011bt\u00ed na \u00farovni projektu ani neoprav\u0148uj\u00ed p\u0159evzet\u00ed elektrick\u00fdch parametr\u016f z jin\u00e9ho modulu.<\/p>\n\n<h2 class=\"wp-block-heading\">\u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n\n<h3 class=\"wp-block-heading\">Sta\u010d\u00ed parametr Imax k tomu, abychom se rozhodli mezi dv\u011bma SPD od spole\u010dnosti DC?<\/h3>\n\n<p class=\"wp-block-paragraph\">Ne. Z p\u0159esn\u00fdch z\u00e1znam\u016f ov\u011b\u0159te trval\u00e9 nap\u011bt\u00ed, samostatn\u00e9 hodnoty In a Up, typ SPD, topologii a podm\u00ednky instalace. \u00dadaj o \u0161pi\u010dkov\u00e9m proudu nem\u016f\u017ee odpov\u011bd\u011bt na v\u0161echny tyto ot\u00e1zky.<\/p>\n\n<h3 class=\"wp-block-heading\">Lze pou\u017e\u00edt p\u0159ep\u011b\u0165ovou ochranu AC, pokud se hodnota v kA shoduje?<\/h3>\n\n<p class=\"wp-block-paragraph\">Shodn\u00e1 hodnota kA je\u0161t\u011b neznamen\u00e1, \u017ee je za\u0159\u00edzen\u00ed vhodn\u00e9 pro stejnosm\u011brn\u00fd proud (DC) nebo fotovoltaiku (PV). Vy\u017e\u00e1dejte si produkt, kter\u00fd je v\u00fdslovn\u011b dokumentov\u00e1n pro zam\u00fd\u0161len\u00e9 pou\u017eit\u00ed v oblasti stejnosm\u011brn\u00e9ho proudu a pro danou konfiguraci.<\/p>\n\n<h3 class=\"wp-block-heading\">Ur\u010duje po\u010det sloup\u016f zp\u016fsob zapojen\u00ed?<\/h3>\n\n<p class=\"wp-block-paragraph\">Ne. Jedn\u00e1 se o ne\u00fapln\u00fd popis. Pro navrhovan\u00fd syst\u00e9m pou\u017eijte p\u0159esn\u00fd sch\u00e9ma v\u00fdrobce a nechte prov\u00e9st odbornou revizi projektu.<\/p>\n\n<h2 class=\"wp-block-heading\">Souvisej\u00edc\u00ed produkty a pokyny spole\u010dnosti RITOKS<\/h2>\n\n<p class=\"wp-block-paragraph\">Tyto str\u00e1nky pou\u017eijte jako samostatn\u00e9 z\u00e1znamy o produktech a produktov\u00fdch \u0159ad\u00e1ch. Odkaz neznamen\u00e1, \u017ee jsou ob\u011b za\u0159\u00edzen\u00ed zam\u011bniteln\u00e1 nebo vz\u00e1jemn\u011b kompatibiln\u00ed.<\/p>\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/ritoks.com\/cs\/product-category\/dc-power-protection\/dc-surge-protective-devices\/\">Kategorie za\u0159\u00edzen\u00ed na ochranu p\u0159ed p\u0159ep\u011bt\u00edm stejnosm\u011brn\u00e9ho proudu<\/a><\/p>\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/ritoks.com\/cs\/products\/40ka-dc-pv-surge-protective-device-300-1500v-2p-3p\/\">\u0158ada RTS-SPD40-PV DC SPD<\/a><\/p>\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/ritoks.com\/cs\/products\/2p-dc-pv-surge-protective-device-20-60ka-500-1000v\/\">\u0158ada LT1 DC PV SPD<\/a><\/p>\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/ritoks.com\/cs\/dc-protection-devices-explained\/\">\u00dalohy ochrann\u00fdch za\u0159\u00edzen\u00ed stejnosm\u011brn\u00e9ho proudu<\/a><\/p>\n\n<h2 class=\"wp-block-heading\">Technick\u00e9 odkazy<\/h2>\n\n<p class=\"wp-block-paragraph\">N\u00e1sleduj\u00edc\u00ed zdroje od v\u00fdrobc\u016f potvrzuj\u00ed n\u00ed\u017ee uveden\u00e9 obecn\u00e9 principy. Jejich technick\u00e9 parametry model\u016f, sch\u00e9mata a schv\u00e1len\u00ed se nevztahuj\u00ed na v\u00fdrobky spole\u010dnosti RITOKS.<\/p>\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.phoenixcontact.com\/en-ca\/products\/surge-protection\/surge-protection-for-photovoltaic-systems\" target=\"_blank\" rel=\"noopener\">Phoenix Contact, Ochrana proti p\u0159ep\u011bt\u00ed pro fotovoltaick\u00e9 syst\u00e9my<\/a><\/p>\n\n<p class=\"wp-block-paragraph\">Podporuje obecn\u00e9 rozli\u0161en\u00ed mezi um\u00edst\u011bn\u00edmi na stran\u011b stejnosm\u011brn\u00e9ho proudu fotovoltaick\u00e9ho syst\u00e9mu a kontextem syst\u00e9mu. Uveden\u00e9 p\u0159\u00edklady uspo\u0159\u00e1d\u00e1n\u00ed a modelov\u00e1 data se vztahuj\u00ed v\u00fdhradn\u011b na spole\u010dnost Phoenix Contact; nejedn\u00e1 se o pokyny ani technick\u00e9 parametry syst\u00e9mu RITOKS.<\/p>\n\n<h2 class=\"wp-block-heading\">Po\u017e\u00e1dat o posouzen\u00ed konkr\u00e9tn\u00edho modelu<\/h2>\n\n<p class=\"wp-block-paragraph\">Zas\u00edlejte zaznamenan\u00e9 po\u017eadavky na pou\u017eit\u00ed, p\u0159esn\u00e9 dotazy t\u00fdkaj\u00edc\u00ed se dokumentace, mno\u017estv\u00ed a m\u00edsto ur\u010den\u00ed prost\u0159ednictv\u00edm kontaktn\u00edho formul\u00e1\u0159e spole\u010dnosti RITOKS. \u017d\u00e1dost o cenovou nab\u00eddku vy\u017eaduje posouzen\u00ed konkr\u00e9tn\u00edho modelu; tento pr\u016fvodce neschvaluje n\u00e1vrh zapojen\u00ed ani nedoporu\u010duje automatickou n\u00e1hradu.<\/p>\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/ritoks.com\/cs\/contact-us\/\">Kontaktujte spole\u010dnost RITOKS<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>A DC surge protective device cannot be specified by a single kA number. A PV or other DC system has [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1235,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"full-width-container","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"disabled","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"disabled","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-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":"","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-4)","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-4)","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-4)","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":""}},"ritoks_resource_detail_renderer":"viox","ritoks_resource_product_cat_term_id":0,"footnotes":""},"categories":[64],"tags":[],"class_list":["post-1200","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-circuit-protection"],"acf":[],"spectra_blocks_featured_image_url":{"thumbnail":{"url":"https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-HERO-01-150x150.webp","width":150,"height":150},"medium":{"url":"https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-HERO-01-300x169.webp","width":300,"height":169},"medium_large":{"url":"https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-HERO-01-768x432.webp","width":768,"height":432},"large":{"url":"https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-HERO-01-1024x576.webp","width":1024,"height":576},"full":{"url":"https:\/\/ritoks.com\/wp-content\/uploads\/2026\/09\/MT-019-HERO-01.webp","width":1600,"height":900}},"spectra_blocks_author_info":{"display_name":"RITOKS","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/6d7d0fc73468198f994ab13ef6eb6558c53b6ed1ad86364d5165efe8bdf8eb4a?s=96&d=mm&r=g","author_link":"https:\/\/ritoks.com\/cs\/author\/dazzlingwqbgmail-com\/","description":""},"_links":{"self":[{"href":"https:\/\/ritoks.com\/cs\/wp-json\/wp\/v2\/posts\/1200","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ritoks.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ritoks.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ritoks.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ritoks.com\/cs\/wp-json\/wp\/v2\/comments?post=1200"}],"version-history":[{"count":5,"href":"https:\/\/ritoks.com\/cs\/wp-json\/wp\/v2\/posts\/1200\/revisions"}],"predecessor-version":[{"id":1261,"href":"https:\/\/ritoks.com\/cs\/wp-json\/wp\/v2\/posts\/1200\/revisions\/1261"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ritoks.com\/cs\/wp-json\/wp\/v2\/media\/1235"}],"wp:attachment":[{"href":"https:\/\/ritoks.com\/cs\/wp-json\/wp\/v2\/media?parent=1200"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ritoks.com\/cs\/wp-json\/wp\/v2\/categories?post=1200"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ritoks.com\/cs\/wp-json\/wp\/v2\/tags?post=1200"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}