Publisher : The Korean Institute of Electrical Engineers
DOI : 10.5370/KIEE.2016.65.1.232
Title & Authors
Protection Techniques Against Electric Shock in Low Voltage DC Grounding Systems Depending on the Analysis of Earth Fault Current Paths Kim, Dong-Woo; Lim, Young-Bea; Lee, Sang-Ick; Choi, Myeong-Il; Moon, Hyun-Wook;
This paper presents protection techniques against electric shock in low voltage DC(direct current) grounding systems depending on the analysis of earth fault current paths. Firstly, the comparison between alternating current and direct current on human was conducted, and current threshold values for each current path and for long duration were analyzed. Secondly, the analyses of the earth fault current flows were performed depending on the grounding types and earth fault conditions. Lastly, based on these analyses, adequate protection measures of electric shock depending on low voltage DC grounding types were provided.
Low voltage DC(direct current) systems;Grounding types;Earth fault current paths;Electric shock;Protection techniques;
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