Fis na fitarwayankeda fuse mai sauyawayankesu ne na waje amfani high irin ƙarfin lantarki m na'urar, Tobe connecte tare da incomin-g feeder na rarraba gidan wuta ko rarraba Lines, shi yafi kare transformeror Lines daga short circuiting andoverload, da kuma kunnawa / kashe loading, na yanzu, Drop-out fiusi cutout ya hada da insulat insulator goyon bayan da fis tube, a tsaye lambobin sadarwa da aka gyarawa a kan bangarorin biyu na insulator goyon baya da kuma motsi da lamba tare da tube a cikin biyu goyon bayan tube da kuma motsi da aka gyara a kan tube biyu na goyon bayan tube. arcexting tube. 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.