Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
권호 표지

Experiment on the Characteristics of Surface Flame Propagating Velocity of Oil filled Cable in the Underground Utility

지하 전력구내 OF 케이블의 화염전파속도 특성 실험

  • Lee Jae-Ha (Department of Mechanical engineering, Chung-Ang University Engineering) ;
  • Jeong Jin-Yong (Thermal Engineering, Chungju National University) ;
  • Hong Gi-Bae (Thermal Engineering, Chungju National University) ;
  • Ryou Hong-Sun (School of Mechanical Engineering, Chung-Ang University)
  • 이재하 (중앙대학교 기계공학과) ;
  • 정진용 (충주대학교 에너지시스템공학과) ;
  • 홍기배 (충주대학교 에너지시스템공학과) ;
  • 유홍선 (중앙대학교 기계공학부)
  • Published : 2005.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

Real-scale experimental study was performed to characterize the surface flame propagating velocity along the OF cable in the underground utility fire. Temperatures of oil filled OF cable and dried OF cable with the diameter of 90mn were measured using thermocouple and data log system. The hexane and alkyl-benzene oil were used as a fire source using the ignition device. As a result while the surface flame propagating velocity of the three cables was $0.06\~0.09cm/s$, the surface flame propagating velocity of the one cable was $0.028\~0.032cm/s$. Therefore, it was found that the surface propagating flame velocity of the three OF cables is $2.1\~2.8times$ faster than that of one OF cable case. The results show that the surface propagating flame velocity became larger as increase of the number of cable, the volume of alkyl-benzene oil in the cable. The characteristics of surface propagating flame velocity in the OF cable can be helpful to fire suppression system in utility.

Keywords

References

  1. 박승민, 김운형, 윤명오, '지하구 케이블의 연소 특성실험', 화재소방학회, 제16권, 제2호, 2002.2
  2. 조영길, '전력케이블의 화염전파특성에 관한 연구', 건국대학교 석사학위논문(1998)
  3. 서정필, 감왕곤, 신성권, 조경순, 홍진용, 'Oil Filled 케이블용 절연유의 유전특성', 한국전기전 자재료학회 추계학술대회 논문집, 1994
  4. 윤구섭, 정우성, 김철운, 김태성, 'OF 케이블 절연유의 특성변화에 따른 경년열화진단', 한국전기재료학회 춘계학술대회 논문집(1997)
  5. 김운형, 김종훈, 박승민, 김태수, 민인홍, 전동일, 김상욱, '지하구 미분무수 소화설비 적용에 관한 연구', 한국화재, 소방학회, 제16권, 제1호, 2002
  6. Quintiere, James G., 'Principles of Fire Behavior', Thomson Learning(1997)
  7. IEEE 383, IEEE Standard for Type Test of class IE Electric Cables, Field Splices, and Connections for Nuclear Power Generating Stations, 1974