近几年的火灾中,电气火灾占有相当大的比例,损失也很严重。但在鉴定这类火灾原因时,往往只是作一些分析性的认定,很少作出科学的结论。这就不能汲取教训,有针对性地提出预防措施。因此,研究电气火灾的鉴别方法,对于有的放矢地采取预防措施是很有必要的。带电状态的鉴别确定是否由于电气事故引起的火灾,很重要的一点,就是要对通电状态进行鉴别。如果在着火前现场没有电而认定是电 In recent years, the fire, electrical fire occupy a large proportion, the loss is also very serious. However, when it comes to identifying the causes of such fires, they often make only some analytical identifications and rarely make scientific conclusions. This can not learn lessons and put forward preventive measures in a targeted manner. Therefore, the study of electrical fire identification methods, targeted to take preventive measures is necessary. Identification of the charged state Determine whether the fire caused by electrical accidents, it is important to identify the power state. If there is no electricity at the scene before the fire and that is electricity