Incazelo emfushane:

Ukusikwa kwefuse yokulahla kanye nokusikwa kwefuse yokushintsha umthwalo kuyidivayisi evikelayo yangaphandle enamandla aphezulu. Ukuze ixhunywe ne-feeder engenayo yokusabalalisa, i-transformer noma imigqa yokusabalalisa. Ivikela kakhulu i-transformer noma imigqa kusuka ku-short circuit kanye nokulayishwa kwe-overload kanye ne-ON/OFF. Ukusikwa kwefuse yokulahla kwenziwa ngezisekeli ze-insulator kanye ne-fuse tube. Oxhumana nabo abaqinile baqiniswe ezinhlangothini ezimbili zokusekelwa kwe-insulator, oxhumana nabo abashukumisayo bafakwa eziphethweni zokudonsa ze-fuse tube. I-fuse tube yakhiwe nge-arc extinguishing tube yangaphakathi. I-Outlineer phenolic compound paper tube noma i-epoxyglasstube. Ukusikwa kwefuse yokushintsha umthwalo kunikeza oxhumana nabo abasizayo abaqinisiwe kanye nesivikelo se-arc sokushintsha i-on-off loading current. Esimweni esivamile sokusebenza, i-fuse link iqinisiwe, i-fuse tube iqinisiwe ukuze ifike endaweni eseduze. Uma kwenzeka uhlelo luvela iphutha, i-fault current izovumela i-fuse incibilike ngokushesha futhi i-arc kagesi izolethwa, okuvumela i-arc extinguishing tube ukuthi ifudumale futhi ixazulule igesi eningi. Lokhu kuzokhiqiza umfutho ophezulu ebhafini, bese kuqhuma kanye ne-tube, bese i-arc izonwetshwa futhi icishwe. Ngemva kokuncibilika kwesixhumanisi se-fuse, oxhumana nabo abashukumisayo abanawo amandla aqinile, idivayisi yokukhiya ikhulula i-fuse, i-fuse tube iyawa, i-cutout manje isendaweni evulekile. Uma idinga ukuvala ngesikhathi sokulayisha i-cutout, sebenzisa ibhola lokusebenza elivikelayo donsa oxhumana nabo abashukumisayo, manje oxhumana nabo abayinhloko nabasizayo abasimeme basaxhumana. Ngesikhathi bedonsa, oxhumana nabo abasizayo bayahlukaniswa, bese kwenzeka i-arc kagesi phakathi koxhumana nabo abasizayo, i-arc inwetshwa esivikelweni se-arc, ngesikhathi esifanayo isivikelo se-arc siqhuma igesi, lapho ukugcwala kwamandla kagesi, kuvumele kucime.