地下铺设送气管道维修用塑料管道系统. 第3部分: 紧密配合管衬里

[中文适用范围]： 本文件与 ISO 11299-1 一起规定了用于燃气供应网络改造的紧贴衬里系统的要求和测试方法。 它适用于制造的管道和配件以及已安装的衬里系统。 它适用于实壁单层或共挤层结构的聚乙烯（PE）管道，在工厂或现场减少，提供紧密贴合的独立或交互压力管道内衬，以及相关管件和配件。 用于衬砌系统施工的接缝。 本文件不适用于管材外侧具有可剥离、连续的热塑性塑料附加层的涂层 PE 管材。 它适用于预期在20°C作为参考温度的工作温度下使用的PE管道、管件和组件。 注：对于其他工作温度，ISO 4437-5:2014 中给出了指导。 [外文原描述]： This document, in conjunction with ISO 11299‑1, specifies requirements and test methods for close-fit lining systems intended to be used for the renovation of gas supply networks. It applies to pipes and fittings, as manufactured, as well as to the installed lining system. It is applicable to polyethylene (PE) pipe of either solid wall single layer or co-extruded layer construction, which is reduced in the factory or on site to provide a close-fitting independent or interactive pressure pipe liner, as well as associated fittings and joints for the construction of the lining system. This document is not applicable for coated PE pipes having a peelable, contiguous, thermoplastics additional layer on the outside of the pipes. It is applicable to PE pipes, fittings and assemblies intended to be used at an operating temperature of 20 °C as the reference temperature. NOTE For other operating temperatures, guidance is given in ISO 4437‑5:2014.