绝缘电线过载发烟规律的实验研究

doi:10.19491/j.issn.1001-9278.2012.10.014

中国塑料 ›› 2012, Vol. 26 ›› Issue (10): 91-95 .DOI: 10.19491/j.issn.1001-9278.2012.10.014

绝缘电线过载发烟规律的实验研究

王学宝杨洋

中国人民武装警察部队学院

收稿日期:2012-06-01 修回日期:1900-01-01 出版日期:2012-10-26 发布日期:2012-10-26

Experimental Study on the Law of Smoke Release of Cable Under Overload Condition

Xuebao WANG Yang YANG

Received:2012-06-01 Revised:1900-01-01 Online:2012-10-26 Published:2012-10-26
Contact: Xuebao WANG

摘要/Abstract

摘要： 通过实验对目前我国民用建筑中常用的普通电线处于过载状态下的烟气释放规律进行了初步的研究。讨论了过载电流、导体材料、标称截面和电线软硬类型等条件对电线过载时烟气释放规律的影响。结果表明,电线处于过载状态时，其绝缘材料的烟气释放量随着过载电流的增大而增大；相比铝芯电线，相同线径的铜芯电线在过载时其绝缘材料更容易热解而释放有毒烟气；线径小的电线在过载时更容易产生热量聚积而导致发烟，火灾危险性更大；处于过载状态时，相同线径的软线比硬线更容易产生有毒烟气。

关键词: 电线, 过载, 烟气释放, 烟密度

Abstract: In this paper, the law of smoke release of cables under overload condition that frequently occurred in civil buildings was studied. The influence of overload current, conductor material, nominal sectional area, and the hardness of the cable on smoke release was discussed. It was found that the amount of smoke increaed with the increase of overload current. More smoke generated from coppercorewires than aluminum counterpart with the same diameter. The cables with smaller diameter and soft core were easier to release smoke than those with larger diameter and hard core.

Key words: cable, overload, smoke release, smoke density

王学宝杨洋. 绝缘电线过载发烟规律的实验研究[J]. 中国塑料, 2012, 26(10): 91-95 .

Xuebao WANG Yang YANG. Experimental Study on the Law of Smoke Release of Cable Under Overload Condition[J]. China Plastics, 2012, 26(10): 91-95 .

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[3]	王岩, 舒文晓, 包永忠, 黄志明, 翁志学. 聚氯乙烯/水滑石纳米复合材料热稳定性和燃烧烟密度的研究[J]. 中国塑料, 2007, 21(3): 40-43.

绝缘电线过载发烟规律的实验研究

Experimental Study on the Law of Smoke Release of Cable Under Overload Condition

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