M00022589
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CORROSION OF METALS AND ALLOYS - DETERMINATION OF AC CORROSION - PROTECTION CRITERIA
International Organization for Standardization
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Availability date: 11/05/2021
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Cathodic protection persons competence
5 Assessment of the AC influence
6 Evaluation of the AC corrosion likelihood
7 Acceptable interference levels
8 Measurement techniques
9 Mitigation measures
10 Commissioning
11 Monitoring and maintenance
Annex A (informative) - Simplified description of the AC
corrosion phenomenon
Annex B (informative) - Coupons and probes
Annex C (informative) - Coulometric oxidation
Annex D (informative) - Influence of soil characteristics on the
AC corrosion process
Annex E (informative) - Other criteria that have been used in the
presence of AC influence
Annex F (informative) - Parameters to take into account to
choose a DC decoupling device
Annex G (informative) - Method to determine the reference
electrode location to remote earth
Annex H (informative) - Simultaneous measurement on
coupon current densities with high rate
Bibliography
Describes the possibility of AC corrosion of metallic pipelines due to AC interferences caused by inductive, conductive or capacitive coupling with AC power systems and the maximum tolerable limits of these interference effects. Defines fact that this is a long-term effect, which occurs during normal operating conditions of the AC power system.
Published | |
Document Type | Standard |
Status | Current |
Publisher | International Organization for Standardization |
Pages | |
ISBN | |
Committee | TC 156 |
Supersedes |
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