Chingwe chokhazikika chimagwiritsidwa ntchito ngati magetsikhomo la utumikikuchokera pa netiweki yogawa magetsi mpaka pagawo la mita (makamaka komwe kumafunika kupewa kutayika kwa "zakuda" kapena kubera magetsi), komanso ngati chingwe chowongolera kuchokera pagulu la mita mpaka gulu kapena gulu logawa, monga momwe zafotokozedwera mu National Electrical Code.Kondakitala wamtunduwu angagwiritsidwe ntchito m'malo owuma komanso amvula, okwiriridwa mwachindunji kapena panja.Kutentha kwake kwakukulu ndi 90 ºC ndipo voteji yake yogwiritsira ntchito ntchito zonse ndi 600V.