本文件给出了用于通信电缆（包括光纤电缆）内护套和外护套的聚乙烯护套化合物的具体要求，如表1所示。本标准将与EN 50290-2-20、产品标准EN 50407系列、EN 50117系列、EN 60794系列和其他适用产品标准一起阅读。使用本文件中概述的原材料和型式试验数据，原材料供应商将有足够的数据证明合规性，并保证材料适用于指定的应用。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document gives specific requirements for polyethylene sheathing compounds, as given in Table 1, for use in inner and outer sheathing of communication cables including fibre optic cables.It is expected to be read in conjunction with EN 50290-2-20, the product standards EN 50407 series, EN 50117 series, EN 60794 series and other applicable product standards.Using raw material and type test data as outlined in this document, the raw material supplier will have sufficient data to demonstrate compliance and warrant that the material is suitable for the specified application.All current amendments available at time of purchase are included with the purchase of this document.