Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference (한국조명전기설비학회:학술대회논문집)

The Korean Institute of IIIuminating and Electrical Installation Engineers (한국조명전기설비학회)
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A Study on the Cutoff time and the Malfunction Current Characteristics of RCDs

누전차단기 동작시간 및 부동작 전류 특성

  • Han, Woon-Ki (Electrical Safety Research Institute, Korea Electrical Safety Corporation) ;
  • Shong, Gil-Mok (Electrical Safety Research Institute, Korea Electrical Safety Corporation) ;
  • Kim, Yong-Seok (Electrical Safety Research Institute, Korea Electrical Safety Corporation) ;
  • Kim, Dong-Wook (Electrical Safety Research Institute, Korea Electrical Safety Corporation) ;
  • Choi, Chung-Seog (Electrical Safety Research Institute, Korea Electrical Safety Corporation) ;
  • Lee, Bok-Yong (Electrical Safety Research Institute, Fire Insurers Laboratory of Korea) ;
  • Park, Sang-Tae (Electrical Safety Research Institute, Fire Insurers Laboratory of Korea)
  • 한운기 (한국전기안전공사 부설 전기안전연구원) ;
  • 송길목 (한국전기안전공사 부설 전기안전연구원) ;
  • 김영석 (한국전기안전공사 부설 전기안전연구원) ;
  • 김동욱 (한국전기안전공사 부설 전기안전연구원) ;
  • 최충석 (한국전기안전공사 부설 전기안전연구원) ;
  • 이복영 (한국전기안전공사 부설 방재시험연구원) ;
  • 박상태 (한국전기안전공사 부설 방재시험연구원)
  • Published : 2005.05.13
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Abstract

This paper describes the cut off time and the current characteristics of virgin RCDs and deteriorated ones in the seashore. The RCDs(Residual Current Protective Devices) are used for protecting the human body from electrical shock and for preventing facility accidents. According to the Korean standards, the RCDs are installed in panel boards. When RCDs are installed outside, they must be enclosed inside waterproof cases. In the case that RCDs are employed at temporary power sites and electrical facilities on the road they are exposed to the external environment. As a result, the RCDs deteriorated in the seashore for 3 months showed high failure rate, while the virgin RCDs all complied with Korean Standard. Considering that the RCDs are used under exposed condition outside, the reliance of RCDs must be ensured by modifying the related regulations and codes and by developing improved advanced in their performance.

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