探讨了在工矿企业中10kV高压电力电缆在线运行温度检测的必要性与实际应用；列举了感温元件 的选型方法以及温度监测系统的组成与运行；介绍了信息处理软件和故障诊断专家系统软件、电力设备底层 信息网、现场总线技术在电力系统中的应用；实现了不停电状态下对高压电缆及电缆接头等各种电缆的故障 在线监测及诊断功能。

The necessity and actual application of an on-line temperature monitoring system used for10kV high voltage electric cable of industrial enterprises has been studied in this paper. Selecting method for temperature sensors, composition of temperature monitoring system and its operating have been illustrated as well. The information processing software and trouble shooting expert system software, basic information network of power facility, and on-site bus line technology used in power system are introduced. The online trouble shooting and diagnosis for high voltage electric cable and cable joints with non stop of power supply have been achieved.