Journal of the Korean Society of Safety (한국안전학회지)
- Volume 16 Issue 4
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- Pages.96-102
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- 2001
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- 1738-3803(pISSN)
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- 2383-9953(eISSN)
A Study of Ground System improvement on Isolated Power Generation
독립 전원설비에서의 접지방법 개선에 관한 연구
Abstract
In construction sites, portable generators and electrical equipments cause frequently electrical accidents due to the poor condition of their usage. However, there are very few technical guidelines on these equipments even though they have serious accident causing potentiality. In order to reduce such accidents in practical and economical, grounding methods are studied in this paper as the countermeasure of electrical accidents. Several Korean national standards and international standards regarding three grounding types are compared each other, and some prevention means of electrical accidents are reviewed in this study. This paper presents the most effective grounding methods by assuming the WCS with the isolated power systems.
Keywords
- grounding system;
- low-voltage system;
- portable generator;
- ungrounded system;
- TN system;
- TT system;
- IT system;
- touch voltage;
- safety voltage