Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference (한국조명전기설비학회:학술대회논문집)
- 2009.10a
- /
- Pages.315-318
- /
- 2009
Performance Evaluation of Protection against Electric Shocks for TT and TN Systems
TT, TN접지계통의 감전보호 성능평가
- Lee, Bok-Hee ;
- Choi, Young-Chul ;
- Yoo, Jae-Duk ;
-
Shin, Hee-Kyung
;
- Yang, Soon-Man ;
-
Kim, Tae-Gi
;
-
Lee, Zu-Cheul
- 이복희 (인하대학교 IT공대 전기공학과) ;
- 최영철 (인하대학교 IT공대 전기공학과) ;
- 유재덕 (인하대학교 IT공대 전기공학과) ;
-
신희경
(인하대학교 IT공대 전기공학과)
;
- 양순만 (인하대학교 IT공대 전기공학과) ;
-
김태기
(인하대학교 IT공대 전기공학과)
;
-
이주철
(대한전기협회)
- Published : 2009.10.09
Abstract
Electric shock is the accident caused by the current through a person or animal's body. That is characterized by the physiological effects. In this paper, we evaluate performance of protection against electric shocks for TT and TN grounding systems which are used by a low voltage consumer nowadays. The performance of protection against electric shocks for TT grounding system is very excellent in equipotential area of the third class grounding, but the performance is poor outside the equipotential area. The performance of protection against electric shocks for TN grounding system is excellent because the potential difference is less than 50V. Accordingly, the performance of protection for TN grounding system is good as compared with that for TT grounding System.
Keywords