A na-ejikarị igbe HDB-K usoro 1 pole switch K1 eme ihe n'ụlọ ọrụ mmepụta ihe na ebe a na-egwupụta ihe iji jikọọ, mebie ma chebe sistemu eletriki. Fuse dị n'ime nwere ike ichebe sistemu eletriki site na oke ibu na sekit dị mkpụmkpụ.
