电绝缘材料.电离辐射影响的测定.第5部分:使用中老化的评估程序

[中文适用范围]： 本部分涵盖了适用于聚合物材料（例如电缆绝缘层和护套、弹性体密封件、聚合物涂层、护套）的部件在暴露于辐射环境下的老化评估方法。本文件的目的是提供在役老化评估的方法。第 5 章至第 9 章讨论的方法涵盖了基于状态监测 (CM) 的老化评估方案、在恶劣环境中使用样品沉积以及实时老化组件的采样。 [外文原描述]： IEC 60544-5:2022 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. IEC 60544-5:2022 covers ageing assessment methods which can be applied to components based on polymeric materials (e.g. cable insulation and jackets, elastomeric seals, polymeric coatings, gaiters) which are used in environments where they are exposed to radiation. The object of this document is aimed at providing methods for the assessment of ageing in service. The approaches discussed in Clause 5 through Clause 9 cover ageing assessment programmes based on condition monitoring (CM), the use of sample deposits in severe environments and sampling of real-time aged components. This edition includes the following significant technical changes with respect to the previous edition: - added recent references in 7.4 showing that some electrical condition monitoring methods show promising correlations with ageing; - updated recommendations for implementation of a sample deposit in 9.2, installation of a sample deposit in 9.3 and testing of samples from the deposit in 9.4; - updated list of references.