不同静电环境电爆管安全性  

Safety of Electric Squib in Different Electrostatic Discharge Environments

作　　者：李志鹏[1] 吕子剑[1] 龙新平[2] 文雯[1] 李振峰[1] 

机构地区：[1]中国工程物理研究院化工材料研究所,四川绵阳621999 [2]中国工程物理研究院,四川绵阳621999

出　　处：《含能材料》2015年第5期472-476,共5页Chinese Journal of Energetic Materials

摘　　要：为评估某电爆管不同静电环境的安全性,采用静电放电模拟器分别模拟人体,机器以及人体-金属复合放电情形,在25 k V条件下对其脚-脚和脚-壳两种静电放电方式的安全性进行了研究。实验发现:脚-脚放电引起的电爆管桥丝电阻值减小率小于2.1%,40发试样均未发火;脚-壳放电时,机器模型放电功率理论计算值高达104.17 MW,导致10发试样中的6发发火。分析表明:该电爆管的静电安全性主要取决于静电放电的电流和功率大小,压敏电阻发生开路失效是导致其发火的主要原因。In order to assess the safety of a electric squib in different electrostatic discharge（ESD） environments, Human-Body model（HBM）, Body-Machine model（BMM） and Machine model（MM） were used to study the safety of the electric squib using two discharge ways of pin-pin and pin-shell with 25 kV discharge voltage. Results show that the decrease of bridge wire resistance is less than 2.1% when ESD is applied to pin-pin, and none of the 40 electric squib samples is ignited. The calculated discharge power of MM model is 104.17 MW, and 6 of 10 samples are ignited when ESD is applied to pin-shell. The analysis indicates that the safety of electric squib in different ESD models is determined by the power and the electric current of ESD, and the open circuit of varistor is the main reason for electric squib samples igniting.

关 键 词：安全性 静电 电爆管 静电放电模型 

分 类 号：TQ560.7[化学工程—炸药化工] TQ086