电位衰减计算在埋地钢制管道阴极保护设计中的应用

Application of Potential Attenuation Calculation in Cathodic Protection Design of Buried Steel Pipeline

摘要: 外加电流法阴极保护的保护范围，是埋地钢制管道阴极保护设计的重要内容之一。对于确定的埋地钢制管道，外加电流法阴极保护的范围能否有效覆盖，至关重要。本文介绍了衰减计算的步骤和内容，并结合沙特拉斯坦努拉线管道工程项目的阴极保护设计实例，分析了衰减计算在埋地管道阴极保护范围设计中的作用，从不同的角度验证保护范围的有效性。

Abstract: The protection scope of the Cathodic Protection with the applied current method is one of the important contents of the Cathodic Protection design of underground steel pipelines. For certain underground steel pipelines, whether the scope of the Cathodic Protection with the applied current method can be effectively covered is crucial. This paper introduces the steps and contents of attenuation calculation; combined with the Cathodic Protection design example of pipeline engineering project in Ras Tanura area of Saudi Arabia, analyzes the role of attenuation calculation in the design of Cathodic Protection scope of underground pipeline; and verifies the protection scope from different perspective effectiveness.