Server maintenance is scheduled for Saturday, December 21st between 6am-10am CST.

During that time, parts of our website will be affected until maintenance is completed. Thank you for your patience.

Menu
Search
Filters
Close
Menu

11181 Methodology for Surveying Buried Plant Piping for Coating Condition and CP Effectiveness

Picture for 11181 Methodology for Surveying Buried Plant Piping for Coating Condition and CP Effectiveness
Available for download
Product Number: 51300-11181-SG
ISBN: 11181 2011 CP
Author: Andy Smart, Steve Biagiotti, Andy Jensen and Eric Elder
Publication Date: 2011
$0.00
$20.00
$20.00
Grounded plant piping networks and cross country pipelines are different, and so must be their respective corrosion survey methods. Pipeline coating condition and cathodic protection (CP) survey techniques do not provide meaningful data in a plant environment.

This paper presents a unique plant corrosion survey process and discusses how the subsequent graphical presentation facilitates data interpretation and analysis. A computer based data logger is used to collect Cu/CuSO4 reference cell potentials measuring areas of the plant, while dual earth current voltage gradients are collected in a rectangular co-ordinate “normal” X-Y grid. The process is called an Area Potential and Earth Current (APEC) survey. After processing, the APEC data is integrated for evaluation into a Geographic Information System (GIS) in relation to the location of all buried plant assets. The APEC survey presents a massive data set that enables this specialized indirect inspection survey methodology to provide the information necessary to define significantly active corrosion cells, determine the plant piping coating condition, and evaluate the performance of all influencing CP systems from a detailed graphical representation.

The paper introduces the APEC survey methodology, and the slide presentation will provide case histories demonstrating the effectiveness of APEC in a plant environment.

Keywords: nuclear, power plant buried pipe, cathodic protection, grounded piping, indirect inspection, pipe-to-soil, earth currents, voltage gradients, CIS, DCVG, plant piping, corrosion surveys, polarization, geographic information system, methodology, telluric current, monitoring, data loggers, rectangular coordinates, polar coordinates, area potentials
Grounded plant piping networks and cross country pipelines are different, and so must be their respective corrosion survey methods. Pipeline coating condition and cathodic protection (CP) survey techniques do not provide meaningful data in a plant environment.

This paper presents a unique plant corrosion survey process and discusses how the subsequent graphical presentation facilitates data interpretation and analysis. A computer based data logger is used to collect Cu/CuSO4 reference cell potentials measuring areas of the plant, while dual earth current voltage gradients are collected in a rectangular co-ordinate “normal” X-Y grid. The process is called an Area Potential and Earth Current (APEC) survey. After processing, the APEC data is integrated for evaluation into a Geographic Information System (GIS) in relation to the location of all buried plant assets. The APEC survey presents a massive data set that enables this specialized indirect inspection survey methodology to provide the information necessary to define significantly active corrosion cells, determine the plant piping coating condition, and evaluate the performance of all influencing CP systems from a detailed graphical representation.

The paper introduces the APEC survey methodology, and the slide presentation will provide case histories demonstrating the effectiveness of APEC in a plant environment.

Keywords: nuclear, power plant buried pipe, cathodic protection, grounded piping, indirect inspection, pipe-to-soil, earth currents, voltage gradients, CIS, DCVG, plant piping, corrosion surveys, polarization, geographic information system, methodology, telluric current, monitoring, data loggers, rectangular coordinates, polar coordinates, area potentials
Product tags
Also Purchased
Picture for ECDA for Pipelines in Congested Areas
Available for download

51314-3734-ECDA for Pipelines in Congested Areas

Product Number: 51314-3734-SG
ISBN: 3734 2014 CP
Author: Rodrigo Himiob
Publication Date: 2014
$0.00
Picture for 10057 Field Survey Results of a Recent Developed CP Survey Set to Improve the ECDA Process
Available for download

10057 Field Survey Results of a Recent Developed CP Survey Set to Improve the ECDA Process

Product Number: 51300-10057-SG
ISBN: 10057 2010 CP
Author: Martin de Wacht
Publication Date: 2010
$20.00
Picture for Cathodic Protection Coupon Use for Buried Piping in Plant (i.e. Complex) Facilities
Available for download

Cathodic Protection Coupon Use for Buried Piping in Plant (i.e. Complex) Facilities

Product Number: 51317--8824-SG
ISBN: 8824 2017 CP
Author: Douglas Gilroy
Publication Date: 2017
$20.00

Measurement and interpretation of cathodic protection data in plant facilities present challenges where mixed metals are electrically continuous with the protected structure. This paper address some of the confusion and important aspects when using coupons for buried piping in mixed-metal circuits.
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support