It is often heard that many people will purchase extension cords with surge protection devices (SPD) and over current protection (OCP) to protect their important electrical appliances, computers for instance. Surge protector is an indispensable device in the lightning protection of electronic equipment, which is abbreviated as SPD. It was usually called surge arrester or overvoltage protector, the function of the a surge protector attempts to limit the voltage supplied to an electric device by either blocking or shorting to…
Electrical protection Power-level safety setting