通信与信号电缆分布参数及放电特性的研究  

The distributed parameters and discharge characteristic of communication and signal cable

作　　者：孙继平[1] 王振龙[1,2] 刘晓阳[1] 张立亚[1] 崔丽真[1] 

机构地区：[1]中国矿业大学(北京)煤炭资源与安全开采国家重点实验室,北京100083 [2]黑龙江科技学院电气与信息工程学院,黑龙江哈尔滨150027

出　　处：《煤炭学报》2010年第7期1224-1228,共5页Journal of China Coal Society

基　　金：教育部博士点基金资助项目(200802900008)

摘　　要：基于简单电感性本质安全电路的分析方法及其放电电流波形,对通信与信号电缆的本质安全性能进行了研究。针对电缆分布参数在满足谐振条件下的本质安全问题,建立了放电电流的数学模型,进行了放电电流与能量的仿真分析。仿真结果表明,长电缆中分布电容的存储能量对电缆本质安全性能有重要影响,在满足振荡条件下的分布电容和分布电感的联合放电是最危险的形式。分析表明,电缆端头的分离速度和环境温度是影响电缆安全性能的重要因素。Based on the analysis method of the simple intrinsically safe inductive circuit and its discharge current waveform,studied on the intrinsically safe performance of communication and signal cable.Aimed at the cable intrinsically safe problem occurring when its distribution parameters meet the oscillation conditions,provided the mathematical model of discharge current and the simulation and analysis of discharge current and energy.The simulation results show that energy stored in distributed capacitance has an important effect on intrinsically safe performance for a long cable and the joint discharge between distributed capacitance and inductance under oscillation condition presents the most dangerous form.The analyses show that the break-away velocity and ambient temperature are important intrinsically safe factors for interconnecting cable.

关 键 词：本质安全电缆 分布参数 电弧放电 谐振电路 分离速度 环境温度 

分 类 号：TD685[矿业工程—矿山机电]