
Ukhuseleko lomthwalo ogqithisileyo luphawu olukwiinkqubo zombane oluthintela umonakalo okanye ukungaphumeleli ngenxa yokuhamba kakhulu kombane. Luhlala lusebenza ngokuphazamisa ukuhamba kombane xa udlula kwinqanaba elikhuselekileyo, nokuba ngokuvuthela ifuse okanye ukukhubeka kwi-circuit breaker. Oku kunceda ukuthintela ubushushu obugqithisileyo, umlilo, okanye umonakalo kwizinto ze-elektroniki ezinokubangelwa kukuhamba kakhulu kombane. Ukhuseleko lomthwalo ogqithisileyo lunyathelo lokhuseleko olubalulekileyo kuyilo lwenkqubo yombane kwaye lufumaneka rhoqo kwizixhobo ezifana nee-switchboards, ii-circuit breakers kunye nee-fuses.
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