Zomanga ndi Mbali
♦ Amapereka chitetezo ku Earth faultleakage current, short-circuit and overload Kutha kwafupipafupi Kumapereka chitetezo chowonjezera kukhudzana ndi thupi la munthu.
♦ Imateteza bwino zida zamagetsi kuti isalephereke kulephera kwa insulating Chizindikiro cha malo olumikizirana ndi malo Amapereka chitetezo kumagetsi opitilira muyeso Amapereka chitetezo chokwanira kumayendedwe apanyumba ndi malonda