Grounding Electrode Design for the Reduction of Hazardous Voltage in Lightning Protection

위험전압 저감을 위한 피뢰설비용 접지전극의 설계

Grounding electrode design is an important part in lightning protection, and the limit of hazardous voltages (step and touch voltages) below the permissible voltage for human body has been the main goal of grounding electrode design. In this paper, the grounding electrode for the reduction of hazardous voltages was designed and evaluated newly. It was known that the inclined auxiliary grounding conductors installed outside the grounding mesh grid are very effective to reduce the step and touch voltages.