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50 mV As a Screening Criteria for Shorted Casings – Case Study

Product Number: 51323-18899-SG

Author: Keith Parker, Len Krissa, Kris Hoisington

Publication Date: 2023

$20.00

While performing cathodic protection surveys, carrier pipe and casing potential readings are typically recorded at the same test station location near the end of a casing. Comparing these potentials should reveal a difference between the cathodically protected pipe versus an unprotected and electrically isolated casing. The difference in potentials is one of available tests to determine whether a casing may be electrically shorted to the carrier pipe. The pipe-to-electrolyte and casing-to-electrolyte potential comparison is usually the initial “screening” method.

Products tagged with 'regulation and standards'

50 mV As a Screening Criteria for Shorted Casings – Case Study

Association for Materials Protection and Performance