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I.S. EN ISO 18086:2017

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

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withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

CORROSION OF METALS AND ALLOYS - DETERMINATION OF AC CORROSION - PROTECTION CRITERIA (ISO 18086:2015)
Available format(s)

Hardcopy , PDF

Withdrawn date

06-30-2021

Language(s)

English

Published date

01-01-2017

Preview

For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

National Foreword
European foreword
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.

DevelopmentNote
Supersedes I.S. EN 15280. (10/2017)
DocumentType
Standard
Pages
56
PublisherName
National Standards Authority of Ireland
Status
Withdrawn
SupersededBy
Supersedes

Standards Relationship
EN ISO 18086:2017 Identical
ISO 18086:2015 Identical

EN 15257:2006 Cathodic protection - Competence levels and certification of cathodic protection personnel
ISO 15589-1:2015 Petroleum, petrochemical and natural gas industries — Cathodic protection of pipeline systems — Part 1: On-land pipelines
EN 50443:2011 Effects of electromagnetic interference on pipelines caused by high voltage a.c. electric traction systems and/or high voltage a.c. power supply systems
ISO 8044:2015 Corrosion of metals and alloys Basic terms and definitions
EN 13509 : 2003 CATHODIC PROTECTION MEASUREMENT TECHNIQUES
IEC 60050-826:2004 International Electrotechnical Vocabulary (IEV) - Part 826: Electrical installations
IEC 61010-1:2010+AMD1:2016 CSV Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 1: General requirements

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