Fis mai yanke fis da kaya mai sauya fis ɗin na'urar kariyar wutar lantarki da ake amfani da ita a waje. Don a haɗa tare da mai shigowa feeder na rarraba gidan wuta ko rarraba-tion Lines shi yafi kare transformer ko Lines daga gajeren kewaye da obalodi, da kuma kunnawa / kashe loading current.Drop-out yanke fis ya hada da insulat insulator goyon bayan da fiusi tube, a tsaye lambobin sadarwa da aka gyarawa a bangarorin biyu na insulator goyon baya da motsi lamba aka shigar a kan biyu iyakar da wani tube a cikin tube komfsin tube. phenoilc fili takarda tube ko epoxy gilashin tube.Load sauyawa cutout fiusi bayar da tilasta na roba auxil-iary lambobin sadarwa da baka-kashe shinge ga sauyawa a kan / kashe loading halin yanzu.

A al'ada aiki via fuselink tightened da fiusi tube aka gyara don samar da sama na kusa matsayi.Idan tsarin ya faru kurakurai, kuskure halin yanzu sakamakon da fiusi narke nan da nan da kuma faruwa da wutar lantarki baka, wanda ya bar baka-extinguishing tube da ake mai tsanani da kuma fashe mai yawa gas. Wannan zai haifar da babban matsin lamba kuma ya busa baka tare da tube.Bayan fuselink narke motsi motsi ba shi da ƙarfin ƙarfafawa kuma, inji yana kulle kuma fuse tube ya sauke. Yanke yanzu yana cikin buɗaɗɗen matsayi. Lokacin da yake buƙatar kashewa yayin lodawa, ma'aikacin zai ta hanyar insulating sandar aiki yana jan lambar sadarwa mai motsi, a farkon farkonsa kuma ana tuntuɓar madaidaicin lamba har yanzu. Yayin da ake cire haɗin haɗin gwiwa ya rabu tsakanin abokan hulɗar haɗin gwiwa akwai arc na lantarki kuma za a tsawaita baka a cikin tazarar shinge mai kashe wuta sannan a halin yanzu mai kashe iskar gas don busa baka a lokacin sifilin wucewa na yanzu.