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

作　　者：徐娜[1] 李恩霞[1] 时军波[1] 李永德[1] 郭卫民[1] 颜国刚[1] 

机构地区：[1]山东省科学院山东省分析测试中心,山东省材料失效分析与安全评估工程技术研究中心,济南250014

出　　处：《机械工程材料》2013年第9期103-106,共4页Materials For Mechanical Engineering

基　　金：山东省科学院青年科学基金资助项目[科基合字(2011)第4号]

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。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.

关 键 词：火灾 短路 过负荷 熔痕 显微组织 

分 类 号：TG113[金属学及工艺—物理冶金]