高聚物的长期辐射老化.第3部分:低压电缆材料的使用中监测规程

[中文适用范围]： IEC 61244 的这一部分是一份技术规范，总结了目前全球范围内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，需要更多的厂内评估才能被推荐为标准技术。以下条款概述了每种方法的优点和缺点及其当前的发展状况。 [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 more 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 clauses. The main technical changes with regard to the previous edition are as follows: a) as there have been technical advances in established test methods and newer methods have become available, several additions have been made to the techniques available in Clause 5; b) some of the techniques listed in the previous edition were found to be either unsuitable for use as cable monitoring methods in plants, or less sensitive to radiation ageing than other methods; these techniques have now been removed; c) a list of abbreviations and their meanings has been added.