The Mechanism and Cognizance of Causes about Short Circuit Fire Disaster

in the Low-voltage Lines

Zhang Xuekai （Sichuan Fire General Brigade of Public Security，Chengdu 610072，China）

 

Abstract In this paper，focused on the most outstanding thing，i. e.，short circuit fire disaster caused by low-voltage lines，the short circuit fire is cognizanced synthetically and discussed from the aspects of the fire causes，mechanism of formation，and the acquisition of the short circuit sign on the spot，appearance recognition and metallographic structure identification.

Key words Low-voltage line Electrical short circuit Cognizance of fire causes

 

摘 要 针对目前电气火灾中最为突出的低压线路短路火灾，从火灾发生的原因、形成机理，以及从火灾现场短路痕迹的获取、外观识别、金相组织鉴定等方面综合认定短路起火并加以论述。

关键词 低压线路 电气短路 火灾原因认定