线缆测试技术的发展综述

Summary of The Development of Cable Testing Technology

摘要:

线缆之于设备就像血脉之于人，承担着电力运行、信号传输的重要作用，其质量好坏直接决定设备运行的安全性。从线缆测试需求出发，分析线缆测试在军工和民用领域的应用范围及需求特点；分别介绍了国内外线缆测试的发展现状及产品形态；针对线缆导通、绝缘、耐压、故障定位等测试项，对其重要测试指标及测试方法进行了总结；详细介绍线缆测试中采用的的关键技术，主要包括时域反射技术、分布式并行测试技术、边界扫描技术；最后，从线缆故障定位、在线测试、耐压测试损伤不可逆、健康管理与评估预测等方面展望了线缆测试技术的发展趋势。未来，融合新技术、新手段，将形成以智能化、自学习、故障可预测为代表的线缆测试系统。

Abstract:

Cable to equipment is like blood to people. It plays an important role in power operation and signal transmission. Its quality directly determines the safety of equipment operation. Starting from the requirement of cable testing, the application scope and requirement characteristics of cable testing in military and civil fields are analyzed. The development status and product form of cable testing at home and abroad are introduced separately. Aiming at the test items of cable conduction, insulation, voltage withstanding and fault location, the important test indexes and test methods are summarized. The key technologies used in cable testing are introduced in detail, including time domain reflection technology, distributed parallel testing technology and boundary scan technology. Finally, the development trend of cable testing technology is prospected from the aspects of cable fault location, on-line testing, irreversible damage of withstand voltage testing, health management and evaluation and prediction. In the future, the cable testing system will be formed by integrating new technologies and new means, such as intellectualization, self-learning and fault predictability