石油和天然气工业.管道运输系统的阴极保护.第1部分:陆地管线

[中文适用范围]： 本部分ISO 15589规定了陆上管道（根据ISO 13623或EN 14161定义，适用于石油、石化和天然气行业，以及EN 1594或EN 12007-1和EN 12007-3在欧洲供气行业使用的管道）阴极保护系统的安装前调查、设计、材料、设备、安装、调试、操作、检查和维护的要求和建议。本部分适用于所有用于其他行业并输送其他介质（如工业气体、水或泥浆）的陆上管道和管道系统。本部分适用于埋地管道、由岸基阴极保护装置保护的海洋管道段的陆地登陆段，以及陆上管道的浸没段（如河流或湖泊穿越段）。本部分适用于碳钢、不锈钢、铸铁、镀锌钢或铜制的管道。如果使用其他管道材料，适用标准由管道运营商定义。本部分不适用于钢筋混凝土管道（可适用EN 12696）。 注：特殊条件下阴极保护可能无效或仅部分有效。此类条件包括屏蔽（如涂层剥离、热绝缘涂层、岩石土壤等）以及电解质中的异常污染物。 [外文原描述]： ISO 15589-1:2015 specifies requirements and gives recommendations for the pre-installation surveys, design, materials, equipment, installation, commissioning, operation, inspection, and maintenance of cathodic protection systems for on-land pipelines, as defined in ISO 13623 or EN 14161 for the petroleum, petrochemical, and natural gas industries, and in EN 1594 or EN 12007‑1 and EN 12007‑3 used by gas supply industries in Europe. All contents of this part of ISO 15589 are applicable to on-land pipelines and piping systems used in other industries and transporting other media such as industrial gases, waters, or slurries. ISO 15589-1:2015 applies to buried pipelines, landfalls of offshore pipeline sections protected by on-shore based cathodic protection installations, and to immersed sections of on-land pipelines such as river or lake crossings. ISO 15589-1:2015 specifies requirements for pipelines of carbon steel, stainless steel, cast iron, galvanized steel, or copper. If other pipeline materials are used, the criteria to apply are defined under the responsibility of the pipeline operator. ISO 15589-1:2015 does not apply to pipelines made of reinforced concrete for which EN 12696 can be applied. NOTE Special conditions sometimes exist where cathodic protection is ineffective or only partially effective. Such conditions can include shielding (e.g. disbonded coatings, thermal-insulating coatings, rocky soil, etc.) and unusual contaminants in the electrolyte.