Effective protection
Surge protection differs in the current capacity, current discharge and voltage protection level therefore it is divided into three classes. Since currents can reach up to 200,000A, only one – usually the third – level of protection is completely insufficient. The use of various electrical extension cords with built-in surge protection provides a current discharge capacity of up to 6,000A, which is 33 times too little. Therefore, the surge protection system is easily destroyed in the event of a serious load together with the device it protects.