Search
Filters
Close

Save 20% on select titles with code HIDDEN24 - Shop The Sale Now

51313-02108-Correcting Nonuniform Potential Distribution & Interference Problems in the CP System

Product Number: 51313-02108-SG
ISBN: 02108 2013 CP
Author: Ahmad Saatchi
Publication Date: 2013
$0.00
$20.00
$20.00

After a period of 12 years of operation of the cathodic protection system in a gas compressor stations the CP potential distribution had changed for various reasons such as pipelines coating degradation isolating flanges failures alterations in pipeline systems and reinforced concrete foundation (RCF) systems. Isolating flanges failures creates galvanic corrosion between the pipelines and the Cu grids of the earthing system and the steel rods in the RCF which consumes part of the CP currents thus non-uniform potential distribution. The extent of CP current required had become so high that was beyond the capacity of the rectifiers. Some areas had become seriously underprotected and some others seriously overprotected. Meanwhile the interference with other neighboring foreign buried pipeline also had increased. In this paper the results of correcting measures for these problems is reported.

After a period of 12 years of operation of the cathodic protection system in a gas compressor stations the CP potential distribution had changed for various reasons such as pipelines coating degradation isolating flanges failures alterations in pipeline systems and reinforced concrete foundation (RCF) systems. Isolating flanges failures creates galvanic corrosion between the pipelines and the Cu grids of the earthing system and the steel rods in the RCF which consumes part of the CP currents thus non-uniform potential distribution. The extent of CP current required had become so high that was beyond the capacity of the rectifiers. Some areas had become seriously underprotected and some others seriously overprotected. Meanwhile the interference with other neighboring foreign buried pipeline also had increased. In this paper the results of correcting measures for these problems is reported.

Product tags
Also Purchased
Picture for Electrical Interference Between Buried Pipelines
Available for download

51313-02260-Electrical Interference Between Buried Pipelines

Product Number: 51313-02260-SG
ISBN: 02260 2013 CP
Author: Jose Araujo Arias
Publication Date: 2013
$20.00
Picture for What You Need to Know About MMO Coated Metal Anodes
Available for download

51313-02107-What You Need to Know About MMO Coated Metal Anodes

Product Number: 51313-02107-SG
ISBN: 02107 2013 CP
Author: Miki Funahashi
Publication Date: 2013
$20.00
Picture for 09545 Interference of an Impressed CP System with an Adjacent Sacrificial CP System and its Mitigati
Available for download

09545 Interference of an Impressed CP System with an Adjacent Sacrificial CP System and its Mitigation

Product Number: 51300-09545-SG
ISBN: 09545 2009 CP
Author: Fawzi S. AL-Madani, Ezeddin R. Busba, David Scantlebury and Hussain S. Boshalla
Publication Date: 2009
$20.00