聚合物的长期辐射老化 第3部分：低压电缆材料在役监测程序

[中文适用范围]： 总结了目前全球正在评估的主要电缆监测技术。这些技术主要旨在监测低压电缆的退化。大多数方法都处于开发阶段，需要进行厂内评估才能被推荐为标准技术。以下各节概述了每种方法的优点和缺点及其当前的发展状况。电缆监测需要考虑两个方面——适合老化评估的技术和适合监测电缆故障的技术。在某些情况下，所讨论的方法可能更适合于监测故障而不是评估电缆材料的退化程度。 [外文原描述]： Summarizes the main cable monitoring techniques which are currently being assessed worldwide. These techniques are primarily aimed at monitoring degradation of low-voltage cables. Most of the methods are at the development stage and require in-plant evaluation before they could be recommended as standard techniques. The advantages and disadvantages of each method, and its current state of development, are outlined in the following sections. There are two aspects of cable monitoring that need to be taken into account - techniques suitable for ageing evaluation and techniques suitable for monitoring faults in cables. The methods discussed may, in some cases, be more suitable for monitoring faults than for evaluating the degree of degradatin of the cable materials.