{"id":2868,"date":"2020-09-08T06:17:55","date_gmt":"2020-09-08T06:17:55","guid":{"rendered":"https:\/\/3.212.105.250\/?p=2868"},"modified":"2025-01-19T14:31:52","modified_gmt":"2025-01-19T20:31:52","slug":"zpusoby-jak-omezit-vyskyt-urazu-elektrickym-obloukem","status":"publish","type":"post","link":"https:\/\/vm6fr4whzn6.c.updraftclone.com\/cs\/2020\/09\/08\/zpusoby-jak-omezit-vyskyt-urazu-elektrickym-obloukem\/","title":{"rendered":"Zp\u016fsoby, jak omezit v\u00fdskyt \u00faraz\u016f elektrick\u00fdm obloukem"},"content":{"rendered":"

Obloukov\u00fd v\u00fdboj je jednou z hlavn\u00edch p\u0159\u00ed\u010din po\u017e\u00e1r\u016f v pr\u016fmyslov\u00fdch provozech. Je to tak\u00e9 jedna z potenci\u00e1ln\u011b nejni\u010div\u011bj\u0161\u00edch p\u0159\u00ed\u010din. Obloukov\u00fd v\u00fdboj m\u016f\u017ee v\u00e9st k velk\u00fdm exploz\u00edm, p\u0159i nich\u017e mohou vzduchem l\u00e9tat roztaven\u00e9 kovov\u00e9 st\u0159epiny, kter\u00e9 zp\u016fsob\u00ed nezm\u011brn\u00e9 \u0161kody v prostoru a dokonce mohou zranit nebo usmrtit pracovn\u00edky. Obloukov\u00fd v\u00fdboj je d\u016fsledkem pr\u016fchodu elektrick\u00e9ho proudu vzduchem, p\u0159i\u010dem\u017e izolace mezi elektrizovan\u00fdmi vodi\u010di nen\u00ed dostate\u010dn\u00e1, aby udr\u017eela p\u0159\u00edtomn\u00e9 nap\u011bt\u00ed. Obloukov\u00fd v\u00fdboj blesku m\u016f\u017ee potenci\u00e1ln\u011b v\u00e9st k po\u017e\u00e1ru,<\/a> l\u00e9taj\u00edc\u00ed p\u0159edm\u011bty, potenci\u00e1ln\u011b \u017eivotu nebezpe\u010dn\u00e1 zran\u011bn\u00ed a velk\u00e9 materi\u00e1ln\u00ed \u0161kody. Obloukov\u00fd v\u00fdboj je nej\u010dast\u011bji zp\u016fsoben lidskou chybou, i kdy\u017e existuj\u00ed p\u0159\u00edpady, kdy je zp\u016fsoben probl\u00e9my s prost\u0159ed\u00edm nebo selh\u00e1n\u00edm za\u0159\u00edzen\u00ed. V\u011bt\u0161in\u011b p\u0159\u00ed\u010din lze p\u0159edch\u00e1zet a lze je pe\u010dliv\u011b sledovat. Pod\u00edvejte se na n\u00ed\u017ee uveden\u00e9ho pr\u016fvodce nej\u00fa\u010dinn\u011bj\u0161\u00edmi zp\u016fsoby, jak omezit v\u00fdskyt \u00faraz\u016f elektrick\u00fdm obloukem na va\u0161em pracovi\u0161ti.<\/p>\n

Sn\u00ed\u017een\u00ed dostupn\u00e9ho poruchov\u00e9ho proudu<\/h2>\n

Elektrick\u00fd poruchov\u00fd proud je proud, kter\u00fd prot\u00e9k\u00e1 obvodem a je pova\u017eov\u00e1n za abnorm\u00e1ln\u00ed proud. Elektrick\u00e9 poruchov\u00e9 proudy jsou t\u00edm, co zp\u016fsobuje obloukov\u00fd z\u00e1blesk, kdy\u017e prot\u00e9kaj\u00ed vzduchem mezi dv\u011bma vodi\u010di pod nap\u011bt\u00edm. Tento proud se naz\u00fdv\u00e1 zkrat a m\u016f\u017ee m\u00edt za n\u00e1sledek vznik energie obloukov\u00e9ho z\u00e1blesku, proto\u017ee jeho v\u00fdsledkem je obvykle mnohem v\u011bt\u0161\u00ed proud, ne\u017e jak\u00fd obvykle prot\u00e9k\u00e1 v podm\u00ednk\u00e1ch bez poruchy. Sn\u00ed\u017een\u00ed dostupn\u00e9ho poruchov\u00e9ho proudu sni\u017euje velikost poruchov\u00e9ho proudu, kdy\u017e k n\u011bmu dojde, a omezuje tak mo\u017enost vzniku obloukov\u00e9ho z\u00e1blesku. Existuje n\u011bkolik metod, jak sn\u00ed\u017eit velikost poruchov\u00e9ho proudu v za\u0159\u00edzen\u00edch a lokalit\u00e1ch, kde se pou\u017e\u00edvaj\u00ed jisti\u010de bez omezen\u00ed proudu (NCLB). Za\u0159\u00edzen\u00ed mohou p\u0159i \u00fadr\u017eb\u011b pou\u017e\u00edvat otev\u0159en\u00e9 vazby, pou\u017e\u00edvat vysokoodporov\u00e9 uzem\u0148ovac\u00ed syst\u00e9my, aby existovala osv\u011bd\u010den\u00e1 cesta pro okoln\u00ed proud, kter\u00e1 m\u016f\u017ee pomoci vych\u00fdlit poruchy, a pou\u017e\u00edvat proudov\u00e9 omezova\u010de, kter\u00e9 omezuj\u00ed zkrat<\/a> dostupn\u00fd proud, co\u017e znamen\u00e1, \u017ee se p\u0159i poruch\u00e1ch uvol\u0148uje m\u00e9n\u011b energie. Sn\u00ed\u017een\u00ed dostupn\u00e9ho poruchov\u00e9ho proudu tak\u00e9 sni\u017euje mno\u017estv\u00ed obloukov\u00fdch v\u00fdboj\u016f, kter\u00e9 mohou vzniknout.<\/p>\n

\u0160kolen\u00ed pracovn\u00edk\u016f<\/h2>\n

V\u011bt\u0161ina p\u0159\u00edpad\u016f \u00farazu elektrick\u00fdm obloukem je zp\u016fsobena lidskou chybou. V\u011bt\u0161inu t\u011bchto chyb lze omezit nebo dokonce odstranit t\u00edm, \u017ee pracovn\u00edci budou \u0159\u00e1dn\u011b pro\u0161koleni v dan\u00e9 oblasti a v oblasti obecn\u00e9 bezpe\u010dnosti. Mnoha lidsk\u00fdm chyb\u00e1m zp\u016fsobuj\u00edc\u00edm obloukov\u00fd v\u00fdboj lze p\u0159edej\u00edt poskytnut\u00edm \u0161kolen\u00ed a bezpe\u010dnostn\u00edch pom\u016fcek. Pokud pracovn\u00edci pln\u011b nech\u00e1pou mo\u017en\u00e9 d\u016fsledky toho, \u017ee se uskrovn\u00ed nebo si svou pr\u00e1ci dvakr\u00e1t nezkontroluj\u00ed, je pravd\u011bpodobn\u011bj\u0161\u00ed, \u017ee se dopust\u00ed chyb. Povzbuzujte pracovn\u00edky, aby svou pr\u00e1ci poka\u017ed\u00e9 p\u0159ekontrolovali, zejm\u00e9na p\u0159i pr\u00e1ci s elektrick\u00fdm proudem. Pravideln\u00e9 \u0161kolen\u00ed a p\u0159ipom\u00edn\u00e1n\u00ed zam\u011bstnanc\u016fm, \u017ee i zd\u00e1nliv\u011b jednoduch\u00e9 chyby mohou v\u00e9st k \u00farazu elektrick\u00fdm obloukem, m\u016f\u017ee v\u00fdrazn\u011b sn\u00ed\u017eit riziko ve va\u0161em za\u0159\u00edzen\u00ed. Mnohokr\u00e1t se st\u00e1v\u00e1, \u017ee nejzku\u0161en\u011bj\u0161\u00ed pracovn\u00edci nakonec ud\u011blaj\u00ed chyby, kter\u00e9 vedou k \u00farazu elektrick\u00fdm obloukem, proto\u017ee maj\u00ed jistotu a zku\u0161enosti; proto je p\u0159ipom\u00edn\u00e1n\u00ed, aby \u0161li p\u0159\u00edkladem nov\u011bj\u0161\u00edm pracovn\u00edk\u016fm a v\u017edy dvakr\u00e1t zkontrolovali svou pr\u00e1ci, skv\u011bl\u00fdm zp\u016fsobem, jak zv\u00fd\u0161it pozornost k detail\u016fm v pos\u00e1dce. Po\u0159\u00e1d\u00e1n\u00ed m\u011bs\u00ed\u010dn\u00edch osv\u011b\u017eovac\u00edch kurz\u016f a nab\u00edzen\u00ed p\u0159\u00edstupu k pr\u016fb\u011b\u017en\u00fdm bezpe\u010dnostn\u00edm kurz\u016fm je skv\u011bl\u00fdm zp\u016fsobem, jak podpo\u0159it bezpe\u010dnost zam\u011bstnanc\u016f a pomoci jim p\u0159evz\u00edt odpov\u011bdnost za svou pr\u00e1ci.<\/p>\n

\u010ci\u0161t\u011bn\u00ed a servis za\u0159\u00edzen\u00ed<\/h2>\n

Kdy\u017e se na pracovi\u0161ti nebo v objektu hromad\u00ed prach a ne\u010distoty, co\u017e je \u010dasem p\u0159irozen\u00e9, prost\u0159ed\u00ed se st\u00e1v\u00e1 n\u00e1chyln\u011bj\u0161\u00edm k p\u0159eru\u0161en\u00ed elektrick\u00e9ho proudu. \u010cast\u00e9 \u010di\u0161t\u011bn\u00ed a ut\u00edr\u00e1n\u00ed prachu na pracovi\u0161ti m\u016f\u017ee pomoci sn\u00ed\u017eit riziko \u00farazu elektrick\u00fdm obloukem. K hromad\u011bn\u00ed prachu a ne\u010distot b\u011b\u017en\u011b doch\u00e1z\u00ed na velk\u00fdch stroj\u00edch, proto je obzvl\u00e1\u0161t\u011b d\u016fle\u017eit\u00e9 v\u011bnovat pozornost t\u011b\u017ek\u00fdm stroj\u016fm a velk\u00fdm za\u0159\u00edzen\u00edm. Tyto stroje a kusy za\u0159\u00edzen\u00ed s nejv\u011bt\u0161\u00ed pravd\u011bpodobnost\u00ed pou\u017e\u00edvaj\u00ed velk\u00e9 mno\u017estv\u00ed elekt\u0159iny nebo dokonce pracuj\u00ed v m\u00edstech, kde se dokon\u010duj\u00ed elektrick\u00e9 pr\u00e1ce, a proto je jejich \u010di\u0161t\u011bn\u00ed je\u0161t\u011b d\u016fle\u017eit\u011bj\u0161\u00ed.<\/p>\n

Dal\u0161\u00edm zp\u016fsobem, jak omezit v\u00fdskyt \u00faraz\u016f elektrick\u00fdm obloukem v objektu nebo na staveni\u0161ti, je pravideln\u00e1 \u00fadr\u017eba v\u011bt\u0161\u00edch stroj\u016f a za\u0159\u00edzen\u00ed. Pokud velk\u00e9 strojn\u00ed za\u0159\u00edzen\u00ed funguje nespr\u00e1vn\u011b, m\u016f\u017ee doj\u00edt k jeho poru\u0161e a k \u00farazu elektrick\u00fdm obloukem v objektu. V\u0161echny stroje a za\u0159\u00edzen\u00ed by m\u011bly b\u00fdt pravideln\u011b servisov\u00e1ny, zejm\u00e9na ty, kter\u00e9 funguj\u00ed v prostor\u00e1ch, kde se pracuje s elektrick\u00fdm proudem, proto\u017ee p\u0159edstavuj\u00ed zv\u00fd\u0161en\u00e9 riziko. Pokud je v za\u0159\u00edzen\u00ed m\u00e9n\u011b prachu a ne\u010distot, sni\u017euje se pravd\u011bpodobnost vzniku obloukov\u00e9ho v\u00fdboje.<\/p>\n

Zam\u011bstn\u00e1v\u00e1n\u00ed konzultant\u016f pro obloukov\u00fd z\u00e1blesk<\/h2>\n

Pokud chcete sn\u00ed\u017eit v\u00fdskyt \u00faraz\u016f elektrick\u00fdm obloukem ve va\u0161em za\u0159\u00edzen\u00ed nebo na staveni\u0161ti, jsou nejlep\u0161\u00ed volbou poradci pro obloukov\u00e9 z\u00e1blesky. Obloukov\u00fd z\u00e1blesk ohro\u017euje zdrav\u00ed a bezpe\u010dnost pracovn\u00edk\u016f a ohro\u017euje i pr\u016fmyslov\u00e1 za\u0159\u00edzen\u00ed. Zam\u011bstn\u00e1n\u00ed zku\u0161en\u00fdch konzultant\u016f pro obloukov\u00fd z\u00e1blesk ve va\u0161em za\u0159\u00edzen\u00ed nebo na pracovi\u0161ti m\u016f\u017ee pomoci zajistit va\u0161emu podniku klid a z\u00e1rove\u0148 zajistit, aby spole\u010dnost pln\u011b vyhovovala po\u017eadavk\u016fm OSHA. OSHA stanovuje p\u0159\u00edsn\u00e9 pokyny, pokud jde o zm\u00edrn\u011bn\u00ed rizik obloukov\u00e9ho v\u00fdboje. Konzultant pro obloukov\u00fd z\u00e1blesk v\u00e1m pom\u016f\u017ee pochopit aktu\u00e1ln\u00ed riziko obloukov\u00e9ho z\u00e1blesku ve va\u0161em za\u0159\u00edzen\u00ed nebo na pracovi\u0161ti a provede testy, abyste v\u011bd\u011bli, jak\u00e9mu mno\u017estv\u00ed elekt\u0159iny mohou b\u00fdt pracovn\u00edci vystaveni v nejhor\u0161\u00edm p\u0159\u00edpad\u011b. Posouzen\u00ed \u00faderu elektrick\u00fdm obloukem se obvykle skl\u00e1d\u00e1 z podrobn\u00e9 prohl\u00eddky pracovi\u0161t\u011b, softwaru podle va\u0161eho v\u00fdb\u011bru, kter\u00fd v\u00e1m umo\u017en\u00ed naj\u00edt potenci\u00e1ln\u00ed mo\u017enosti anal\u00fdzy elektrick\u00e9ho nap\u00e1jec\u00edho syst\u00e9mu, anal\u00fdzy elektrick\u00e9 koordinace pro kontrolu bezpe\u010dnosti pracovi\u0161t\u011b, anal\u00fdzy zkratu, zpr\u00e1vy o anal\u00fdze \u00faderu elektrick\u00fdm obloukem a \u0161t\u00edtk\u016f pro \u00fader elektrick\u00fdm obloukem. Investice do konzultant\u016f v oblasti obloukov\u00e9ho z\u00e1blesku pro va\u0161e za\u0159\u00edzen\u00ed je investic\u00ed do va\u0161ich pracovn\u00edk\u016f i do va\u0161eho podniku. Bezpe\u010dn\u00e9 a produktivn\u00ed pracovn\u00ed prost\u0159ed\u00ed je kl\u00ed\u010dem k \u00fasp\u011b\u0161n\u00e9mu podnik\u00e1n\u00ed.<\/p>\n

V p\u0159\u00edpad\u011b v\u0161ech va\u0161ich obav t\u00fdkaj\u00edc\u00edch se obloukov\u00e9ho z\u00e1blesku v objektu a na staveni\u0161ti zva\u017ete vy\u0161kolen\u00e9ho a zku\u0161en\u00e9ho konzultanta pro obloukov\u00fd z\u00e1blesk nebo studii obloukov\u00e9ho z\u00e1blesku od spole\u010dnosti Dreiym Engineering, jedn\u00e9 z p\u0159edn\u00edch spole\u010dnost\u00ed v oboru.\u00a0elektrotechnick\u00e9 poradensk\u00e9 spole\u010dnosti<\/a>. N\u00e1\u0161 zku\u0161en\u00fd t\u00fdm konzultant\u016f v oblasti obloukov\u00fdch v\u00fdboj\u016f m\u016f\u017ee prov\u00e9st pot\u0159ebn\u00e9 testy, kter\u00e9 pomohou va\u0161\u00ed firm\u011b zajistit bezpe\u010dnost pracovn\u00edk\u016f a za\u0159\u00edzen\u00ed t\u00edm, \u017ee identifikuj\u00ed a sn\u00ed\u017e\u00ed riziko obloukov\u00e9ho v\u00fdboje ve va\u0161em za\u0159\u00edzen\u00ed. Bezpe\u010dn\u011bj\u0161\u00ed a produktivn\u011bj\u0161\u00ed pracovn\u00ed prost\u0159ed\u00ed za\u010d\u00edn\u00e1 konzultac\u00ed o obloukov\u00e9m z\u00e1blesku, kter\u00e1 va\u0161\u00ed spole\u010dnosti poskytne hlub\u0161\u00ed pochopen\u00ed konkr\u00e9tn\u00edho rizika obloukov\u00e9ho z\u00e1blesku v podniku a p\u0159ijde s nejlep\u0161\u00edmi mo\u017en\u00fdmi metodami prevence.<\/p>\n\"Zp\u016fsoby,","protected":false},"excerpt":{"rendered":"

Arc flash is one of the leading causes of fires in industrial settings. It is also one of the potentially most disastrous. Arc flash can lead to major explosions where molten metal shrapnel can fly through the air, causing immeasurable damage to the space and even injuring or killing workers. Arc flash is the result […]<\/p>\n","protected":false},"author":8,"featured_media":3516,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_mbp_gutenberg_autopost":false,"_pgmb_is_evergreen":true,"_pgmb_ap_template_id":0,"iawp_total_views":36,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-2868","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-electrical"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t