IEC 60794-1-308:2023描述了评估未电缆带或电缆光纤带中永久扭曲程度的测试程序。本文件适用于与采用类似技术的电信设备和装置一起使用的光缆中的光纤带，并且适用于具有光纤和电导体的组合的光缆中的光纤带。本文件不适用于部分粘合的色带。部分粘合带的方法正在考虑中。在整个文件中，措辞“光缆”也可以包括光纤单元、微导管光纤单元等。光纤带的环境测试对于某些应用是有价值的。有关合适测试方法的有用信息可以在光纤标准IEC 60793-1-50、IEC 60793？1？51、IEC 60793？1？52和IEC 60793-1-53。

IEC 60794-1-308: 2023 describes test procedures to evaluates the degree of permanent twist in an uncabled ribbon or in a cabled optical fibre ribbon. This document applies to optical fibre ribbons in optical cables for use with telecommunication equipment and devices employing similar techniques, and to optical fibre ribbons in cables having a combination of both optical fibres and electrical conductors. This document is not applicable to partially-bonded ribbons. The method for partially-bonded ribbons is under consideration. Throughout the document, the wording "optical cable" can also include optical fibre units, microduct fibre units, etc. NOTE？The environmental testing of optical fibre ribbon would be valuable for some applications. Useful information about suitable test methods can be found in the optical fibre standards IEC 60793-1-50, IEC 60793？1？51, IEC 60793？1？52, and IEC 60793-1-53.