电气火灾中导线熔痕的宏微观特征

Macro and Micro Characteristics of Wire Melted Marks in Electrical Fire

摘要: 通过分析导线在火灾中形成熔痕的过程, 归纳了火烧熔痕、短路熔痕和过负荷熔痕的宏、微观特征, 据此可分析电气火灾事故的成因, 提出了用金相分析并结合现场勘查的方法来正确鉴定火灾的原因。

Abstract: Through forming process analysis of wire melted marks in the fire, the macro and micro characteristics of fire melted marks, short circuit and overload melted marks were concluded, which could be used to analyse the causes of electrical fire accidents. Metallographic analysis combining with on-site inspection was put forward to accurately indentify the causes of fire.