空气开关防控短路引火源试验研究  

Experimental study on the prevention and control of short circuit ignition source by air switch

作　　者：高鹏 吕忠 GAO Peng;LV Zhong(Sichuan Fire Research Institute of MEM,Sichuan Chengdu610036,China)

机构地区：[1]应急管理部四川消防研究所

出　　处：《消防科学与技术》2019年第5期745-748,共4页Fire Science and Technology

摘　　要：为了验证常用的空气开关对短路引火源是否具有较好的防控作用,开展了空载短路试验研究、带载短路试验研究以及回路阻抗对短路影响的试验研究,分析了不同情况下空气开关对短路引火源的防控作用。结果表明,常用的空气开关对短路引火源的防控作用非常有限,实际应用中由于回路阻抗影响、型号选择不当等因素,空气开关很难及时动作,甚至不动作,从而提出研发新型有效电气火灾防控装置的必要性。In order to verify the prevention and control of short circuit ignition source by air switch,no-load short circuit test,load short circuit test were carried out,and the influence of loop impedance on short circuit was tested too.The prevention and control of short circuit ignition source by air switch under different condition were analyzed.Results showed that,common air switch has limited effect on the prevention and control of short circuit ignition source.In practice,as the influence of loop impedance,improper model selection,air switches are difficult to operate in time or even not,which put forward the necessary of the development of new type of electrical fire prevention and control device.

关 键 词：空气开关 短路 引火源 电气火灾 火灾调查 

分 类 号：X946[环境科学与工程—安全科学] X928.7