DC Leakage Current Properties Analysis of the LED Lamps of Road and Landscape Lighting

Abstract

-In this paper, we studied dc leakage current properties analysis of LED lamps of road and landscape lighting when leakage current appeared in dc power line. Generally, converter of LED lighting is divides to insulated type and non-insulated type according to components. When electric leakage happened in AC power line, earth leakage breaker(ELB) senses leakage current and interrupts electric circuit. In dc power source, We need experimental verification about dc electric leakage for electricity safety. In normal wiring conditions and in the water, in case of using insulated type of converter, dc leakage current did not occur. However, in case of using non-insulated type of converter, dc leakage current occurred and passed through into the ground. We found that there is a hazard of electric shock by dc leakage current. We expect that the results of these studies would be helpful for electrical safety of LED lamps for road and landscape lighting.

A Study on the Development of ETEC-IGR Test Devices for the Reliability Evaluation of RCD and ETEC-DPS

“…(residual current protective device, RCD) (12) 는 전선로에 누설전류가 30 mA 이상 흐르면 회로를 이내에 분리하여 인체의 감전 사고 0.03 s 를 예방하기 위해 설치하는 기기이므로 전기화재 예방 기능은 일부 있으나 전기화재를 유발시키는 IGR (6)(7)(8) 개발된 시험장치의 특성 및 신뢰성 평가 3. .…”