配电变压器台区电缆保护管管口防火封堵的改进

Improvement for Fire Proof Clogging of Cable Protective Pipe in Distribute-electricity Transformer District

根据国家及行业对于电力电缆防火的规定，电力电缆穿越孔洞时的开口必须进行防火封堵．介绍了目前配电变压器台区电缆保护管管121防火封堵的现状及存在的问题，并提出了改进措施．

On the basis of national and industrial standards in fire proof clogging for power cable, the power cable pipe must be fire proof clogged. The method and problem for fire proof clogging of cable protective pipe in distribute-electricity transformer district is introduced, and new improvement measures are put forward.