本文件规定了工厂制造的热绝缘挠性电缆的要求和试验方法 直埋式区域冷却分配系统的管中管组件，包括 管道和聚乙烯外壳。管道部件还可以包括以下附加元件: 测量线、垫片和扩散屏障。 本文件拟与EN 17414-2或EN 17414-3结合使用。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 specifies requirements and test methods for factory made thermally insulated flexible pipe-in-pipe assemblies for directly buried district cooling distribution systems, comprising a service pipe and a casing of polyethylene. The pipe assembly can also include the following additional elements: measuring wires, spacers and diffusion barriers. This document is intended to be used in conjunction with EN 17414-2 or EN 17414-3.All current amendments available at time of purchase are included with the purchase of this document.