정보통신설비의 뇌서지에 대한 보호시스템

초록

This paper deals with a protection system of facilities for information and communication from lightning surges. Since the information and computerized equipments have AC power lines and communication lines, the potential difference by lightning surge occurs between grounding points of the AC power lines and subscriber protectors, and it causes the flashover and damage. So, we have investigated the effect of the installation method of surge protectors on the control of overvoltages, using a real-scale test circuit with a customer's facility. As a result, it was found that the common grounding of surge protectors is more effective than the independent grounding.