IEC TR 62959:2021是一份技术报告，提供了由电信应用标准玻璃光纤组成的光缆的电缆收缩特性信息。特征描述针对电缆收缩或电缆元件收缩对电缆终端的影响。收缩可能是或不可能是一个问题，取决于终止方法。包括并描述了不同电缆终端盒的示例。建议使用可作为指标的电缆收缩评估试验，并给出了几个等级的收缩分类。

IEC TR 62959:2021 which is a Technical Report, provides information on cable shrinkage characterisation of optical fibre cables that consist of standard glass optical fibres for telecommunication application. The characterisation is directed to the effects of cable shrinkage or cable element shrinkage on the termination of cables. Shrinkage can or cannot be a concern depending on the method of termination. Examples of different cable termination cases are included and described. Tests for the evaluation of cable shrinkage are recommended that can be used as indicators, and shrinkage classification by several grades are given.