Main trends in increasing technical and economic efficiency of underground power pipelines cathodic protection

International Scientific and Practical Conference: Water Power Energy Forum 2018

Kiselev, V.G.^1 ; Kalyutik, A.A.^1 ; Fedyukhin, A.V.^2 ; Makoev, S.O.^1

Peter the Great St. Petersburg Polytechnic University, Polytechnicheskaya 29, St.Petersburg

194021, Russia^1

National Research University Moscow Power Engineering Institute, Krasnokazarmennaya 14., Moscow

111250, Russia^2

关键词: Anticorrosive protection;    Cathodic corrosion protections;    Cathodic protection systems;    Current consumption;    Economic efficiency;    Electrical resistances;    Practical recommendation;    Underground metal;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/288/1/012098/pdf
DOI  :  10.1088/1755-1315/288/1/012098

来源: IOP

【 摘 要 】

The analysis and systematization of the main factors determining the parameters of the electrochemical protection of underground metal communications (UMC) is carried out in the article. Reasons influencing current consumption and power losses in the DC circuit of the cathodic corrosion protection are discussed in detail, and practical recommendations for their reduction are given. Preparatory measures have a significant impact on anticorrosive protection of power pipelines, namely, measures to improve the quality of insulation (increasing the electrical resistance of coatings and ensuring their integrity), measures to ensure high longitudinal conductivity of pipelines, and removal of contacts of underground metal structures with other earthed structures. On the basis of the research, practical recommendations for reducing power losses and reducing current consumption in cathodic protection systems are given.