I.S. EN ISO 18086:2017
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
View Superseded by
CORROSION OF METALS AND ALLOYS - DETERMINATION OF AC CORROSION - PROTECTION CRITERIA (ISO 18086:2015)
Hardcopy , PDF
30-06-2021
English
01-01-2017
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.
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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Withdrawn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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