主管:中华人民共和国应急管理部
主办:应急管理部天津消防研究所
ISSN 1009-0029  CN 12-1311/TU

Fire Science and Technology ›› 2021, Vol. 40 ›› Issue (7): 968-970.

Previous Articles     Next Articles

Study on improvement of heat-resisting capacity of pipe of the transformer fire extinguishing system

CHEN Bao-hui1,ZHOU Tian-nian1, WU Chuan-ping1,LIU Yu1,FANG Lu-jun2   

  1. 1.State Key Laboratory of Disaster Prevention & Reduction for Power Grid Transmission and Distribution Equipment, Hunan Electric Power Corporation Disaster Prevention and Reduction Center, Hunan Changsha 410007, China; 2.Shanghai Vision Mechanical Joint Co. Ltd., Shanghai 201807, China
  • Online:2021-07-15 Published:2021-07-15

Abstract: According to the requirement of heat-resisting properties of fire pipe of fire extinguishing system used for protecting transformers, an experimental platform was set up. Burn resistance experiments in 3 min and 6 min of fire pipe and clamp was carried out. The burn resistance of the fire clamp made of EPDM rubber and fluorosilicone rubber was compared. The effect of fire- retardant coating on the burn resistance of fire pipe and clamp of transformers fire extinguishing system was evaluated. A strategy to improve the burn resistance of fire pipe and clamp of transformer fire extinguishing system was put forward. It guided the reliable extinguishment of transformer fires, and provided reference for renovation and construction of transformer fire extinguishing system.

Key words: transformer, pipe, burn resistance, EPDM, fluorosilicone, fire-retardant coating