探测电缆老化的光纤直流漏电流法

电力电缆绝缘可靠性直接影响电气化铁道及其设备供电的安全稳定运行.合理选择故障测试设备,准确、快速查找电缆老化故障已经引起国内外专家学者的广泛关注.本文在分析电力电缆老化现象的基础上,探讨当前常用的老化探测方法,提出了光纤直流漏电流探测法,通过与以往的探测方法进行比较,表明光纤直流漏电流探测法能够有效降低环境干扰,提高测量精度.

Optical Cable DC Leakage Method for Detection of Aging Cable

The safety of the insulation of the cable has a direct relationship with the safety and reliable running of the electrical facilities. How to chose the right fault finding facility and quickly get the aging cable have attracted a lot of attention. In this assay, base on the cable aging condition and traditional finding fault methods, a new fiber AC leak current detect method has been put forward. Through comparison with the tradition methods, the new method can lower the environmental disturb effectively so as to improve the measure accuracy.