Ikhwalithi ephezuluama-circuit breakers e-case abunjiwezamukela oxhumana nabo bethusi abansomi abasezingeni eliphezulu, amapulasitiki obunjiniyela avimbela ilangabi kanye nezinhlelo zokucima i-arc ezinembile. Amandla abo ajwayelekile kanye nomthamo wokuphuka asezingeni elifanele. Anikeza ukuvikelwa okunembe kakhulu kanye nokuvikelwa kwe-short-circuit, izici zokukhubeka ezihambisanayo, ukuphakama kwezinga lokushisa eliphansi, ukumelana ne-arc, ukusebenza okuqinile kokushisa, ukuthembeka okuphezulu kokusebenza kwesikhathi eside, futhi afanele izimo ezibucayi njengokusatshalaliswa kwezimboni kanye namandla. Anesikhathi eside sewaranti futhi adlulise izitifiketi eziqinile.
Ukusebenza kwemikhiqizo ephakathi nendawo ngokuyisisekelo kuhlangabezana nezidingo zokusatshalaliswa kwamandla omphakathi. Izinto zokwakha kanye nezinqubo zisezingeni eliphakathi. Ukunemba kokuvikela kuyamukeleka. Amandla okuphuka nokuqina kujwayelekile. Umthwalo ophezulu wesikhathi eside uthambekele ekukhiqizweni kokushisa nokuguga, kanti izinga lokwehluleka liphakeme kancane.
Imikhiqizo ephansi ivame ukusebenzisa izinto zethusi ezisezingeni eliphansi noma izingxenye ezimbozwe ngethusi, ezinezakhiwo ezilula zokucisha i-arc, imingcele yokuvikela ephawulwe ngokungeyikho, izingozi eziphezulu zokukhubeka, ukwehluleka ukusebenza noma ukusebenza okungeyikho, ukungasebenzi kahle komlilo, futhi zivame ukubangela ukusha, izifunda ezimfushane noma ngisho nemililo, okubangela izingozi zokuphepha ezivelele. Zisetshenziswa kakhulu kumasifunda esikhashana noma angabalulekile.