Fis na fitarwayankeda loading sauya fiusi cutout ne na waje amfani high irin ƙarfin lantarki m na'urar, Tobe connecte da incomin-g feeder na rarraba gidan wuta ko rarraba Lines, shi yafi kare transformeror Lines daga gajeren kewaye da overload, da kuma kunna / kashe loading, halin yanzu, Drop-out fiusi cutout ne hada da insulat insulator goyon bayan da fis tube, a tsaye lambobin sadarwa ne gyarawa a kan biyu motsi na lamba goyon bayan tube da kuma a bangarorin biyu. Fuse bututu ya ƙunshi bututun arcexting na ciki. Outer phenolic fili takarda tube ko epoxy gilashintube, Load sauya fiusi cutout samar enfored na roba karin lambobin sadarwa da baka-kashe keɓancewa ga sauyawa on-kashe loading halin yanzu.