지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.6
- 수록면
- 68 - 74 (7page)
이용수
초록· 키워드
오류제보하기
The touch or step voltages which exist in the vicinity of a grounding electrode are closely related to the earth structure and resistivity and the ground current. The grounding design approach is required to determine the grounding electrode location where the hazardous voltages are minimized. In this paper, in order to propose a method of mitigating the electric shock hazards caused by the ground surface potential rise in the vicinity of a counterpoise, the hazards relevant to touch voltage were evaluated as a function of the soil resistivity ratio p₂/p₁ for several practical values of two-layer earth structures. The touch voltage and current on the ground surface just above the test electrode are calculated with CDEGS program. As a consequence, it was found that burying a grounding electrode in the soil with low resistivity is effective to reduce the electric shock hazards. In the case that the bottom layer soil where a counterpoise is buried has lower resistivity than the upper layer soil, when the upper layer soil resistivity is increased, the surface potential is slightly raised, but the current through the human body is reduced with increasing the upper layer soil resistivity because of the greater contact resistance between the earth surface and the feet. The electric shock hazard in the vicinity of grounding electrodes is closely related to soil structure and resistivity and are reduced with increasing the ration of the upper layer resistivity to the bottom layer resistivity in two-layer soil.
목차
Abstract
1. 서론
2. 대지구조를 고려한 접지전극 주변에서 위험성 평가
3. 분석대상 모델 및 방법
4. 결과 및 고찰
4. 결론
References
저자소개
참고문헌 (11)
참고문헌 신청
2010 / Power installations exceeding 1 kV a.c. - Part 1: Common rules / International Standard IEC 61936-1 :84~88
IEEE. Standard Board / 1983 / IEEE Guide for Measuring Earth Resistivity. Ground Impedence, and Earth Surface Potentials of a Ground System / IEEE Std 81 :24~26
IEEE. Standard Board / 2000 / IEEE Guide for safety in AC Substation Grounding / IEEE Std 80 :16~29
2007 / 피뢰시스템 - 제3부 : 구조물의 물 리적 손상 및 인명위험 / KS C IEC 62305-3 :249~268
이복희 / 1999 / 접지의 핵심 기초 기술 / 도서출판 의 제 :27~64
IEEE. Standard Board / 1983 / IEEE Guide for Measuring Earth Resistivity. Ground Impedence, and Earth Surface Potentials of a Ground System / IEEE Std 81 :24~26
IEEE. Standard Board / 2000 / IEEE Guide for safety in AC Substation Grounding / IEEE Std 80 :16~29
2007 / 피뢰시스템 - 제3부 : 구조물의 물 리적 손상 및 인명위험 / KS C IEC 62305-3 :249~268
이복희 / 1999 / 접지의 핵심 기초 기술 / 도서출판 의 제 :27~64
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UCI(KEPA) : I410-ECN-0101-2013-565-000526964