Preliminary Discussion about Electrical Fireproof Design of Distribution Lines

Xie Feng Sun Shuang（Shenyang Fire Research Institute，Ministry of Public Security，

Shenyang 110034，China）

Abstract Fires caused by distribution lines cover a substantial proportion in the electrical fires. The reasons of fires caused by distribution lines，and some problems in the electrical fireproof design are analyzed，such as measures for preventing the spread of fire in the laying of distribution lines，the correct selection of wires，cables，busbars and cable trays，and fireproof treatment of the interlayers and run-through parts of fire division.

Key words Electrical fire Distribution line Electrical f ireproof design

 

摘 要 由配电线路引发的火灾在电气火灾中占有相当大的比例，分析了配电线路引发火灾的原因，以及配电线路电气防火设计中的一些问题，如配电线路敷设的防火蔓延措施，电线、电缆、母线槽、电缆桥架的正确选择，层间及防火分区贯通部分的防火处理等。

关键词 电气火灾 配电线路 电气防火设计