GB/T 15558.1-2015 in English

GB15558的本部分规定了以聚乙烯(PE)混配料为原料,经挤出成型的燃气用埋地聚乙烯(PE)管材(以下简称“管材”)的术语和定义、材料、要求、试验方法、检验规则、标志和包装、运输、贮存。
本部分规定的管材类型包括:
―――单层实壁管材;
―――管材外壁包覆可剥离热塑性防护层的管材。
本部分适用于 PE80和 PE100混配料制造的公称外径为16mm~630mm 的燃气用埋地聚乙烯(PE)管材,管材的最大工作压力(MOP)基于设计应力确定,并考虑耐快速裂纹扩展(RCP)性能的影响。
在输送人工煤气和液化石油气时,应考虑燃气中存在的其他组分(如:芳香烃、冷凝液)在一定浓度下对管材性能的不利影响。

Scope

This part of GB 15558 specifies the terms and definitions, materials, requirements and tests for buried polyethylene (PE) pipes for gas (hereinafter referred to as "pipes") extruded from polyethylene (PE) compounds as raw materials. Methods, inspection rules, marking and packaging, transportation, storage. The types of pipes specified in this part include: --Single-layer solid-wall pipes; --Pipes whose outer wall is covered with a peelable thermoplastic protective layer. This part is applicable to buried polyethylene (PE) pipes for gas with a nominal outer diameter of 16 mm to 630 mm manufactured by PE 80 and PE 100. The maximum operating pressure (MOP) of the pipe is determined based on the design stress, taking into account the Effect of Rapid Crack Propagation (RCP) Properties. When transporting artificial gas and liquefied petroleum gas, the adverse effects of other components in the gas (such as: aromatic hydrocarbons, condensate) on the performance of the pipe at a certain concentration should be considered.