基于COMSOL仿真和实验验证的耐热型OPLC结构优化方案  

Structural optimization scheme of heat-resistant OPLC based on COMSOL simulation and experimental verification

作　　者：伏丽娜 郭毅 于晶 FU Li'na;GUO Yi;YU Jing(Shanghai Electric Cable Research Institute Co.,Ltd.,Shanghai 200093,China;Shanghai National Center of Testing and Inspection for Electric Cable and Wire Co.,Ltd.,Shanghai 200444,China)

机构地区：[1]上海电缆研究所有限公司,上海200093 [2]上海国缆检测股份有限公司,上海200444

出　　处：《光通信技术》2022年第4期56-60,共5页Optical Communication Technology

基　　金：国家重点研发计划项目(2016YFB0901200)资助。

摘　　要：针对光纤复合低压电缆(OPLC)在运行状态下发生的短暂高温对电缆中光纤的传输性能造成影响的问题,提出了耐热型OPLC结构优化方案。首先,优化改进OPLC结构、研究OPLC材料选型;然后,采用COMSOL多物理场仿真软件,实现耐热型OPLC三维模型的仿真建模,并根据电流热效应及温度对电阻的反作用原理对仿真模型进行修正,探索优化结构下仿真状态的线缆三维热场分布情况;最后,结合目前OPLC耐热试验要求,研究适用于耐热型OPLC的耐热和超载试验的测试方案。测试结果表明,高于电缆工作最高标准温度10%且持续时间15 min时,OPLC的光纤衰减损耗变化不超过0.15 dB/km。Aiming at the problem that the short-term high temperature of optical fiber composite low-voltage cable(OPLC)in operation affects the transmission performance of optical fiber in the cable,a heat-resistant OPLC structure optimization scheme is proposed.Firstly,the OPLC structure is optimized and improved,and the OPLC material selection is studied.Then,the COMSOL multi-physics field simulation software is used to realize the simulation modeling of the heat-resistant OPLC three-dimensional model,and the simulation model is modified according to the current thermal effect and the reaction principle of temperature on the resistance,so as to explore the three-dimensional thermal field distribution of the cable in the simulation state under the optimized structure.Finally,combined with the current OPLC heat resistance test requirements,the test scheme of heat resistance and overload test suitable for heat-resistant OPLC is studied.The test results show that the fiber attenuation loss of OPLC is less than 0.15dB/km when the temperature is 10%higher than the maximum standard temperature for 15 min.

关 键 词：光纤复合低压电缆 电力光纤到户 耐热 

分 类 号：TN247[电子电信—物理电子学]