Isiphumo:
ityhubhu ye-fuse esisigxina kunye nocingo olukhokelela ngaphandle.Xa i-fuse ixhunywe kwisiphaluka, i-melt idibaniswe kwichungechunge kwisiphaluka, kwaye umbane wangoku uhamba nge-melted.Xa isiphaluka esifutshane okanye i-overcurrent isenzeka kwisiphaluka, i-current through the melt yenza ukuba kushushu;xa ifikelela kwiqondo lokushisa elinyibilikayo lensimbi etyhidiweyo, iya kuxubha ngokwayo, kwaye isiphaluka sephutha siya kunqunyulwa kunye ne-arc yokutshisa kunye nenkqubo yokucima i-arc ukuze idlale indima yokukhusela.