공통접지시스템에서 본딩 방식에 따른 뇌격전류의 분류율 분석

초록

This paper presents the investigation of surge current distribution in LPS(lightning protection system) during direct lightning strike to lightning rod in the building. In order to analyze surge current distribution, a small-scaled model and CDEGS program were used. Test results are consist of four cases, those are divided by bonding methods of between bonding bar and down-conductor in case of using down-conductor and framework of the structure respectively. Surge current distribution in a common ground system with multiple paths to earth was analyzed by considering whether the water pipe is bonded to common grounding system or not.