1、BSI Standards PublicationBS ISO 15589-1:2015Petroleum, petrochemicaland natural gas industries Cathodic protection of pipelinesystemsPart 1: On-land pipelinesBS ISO 15589-1:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 15589-1:2015.The UK participation i
2、n its preparation was entrusted to TechnicalCommittee PSE/17/2, Transmission pipelines.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for it
3、s correctapplication. The British Standards Institution 2015. Published by BSI Standards Limited 2015ISBN 978 0 580 78497 2ICS 75.200Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Stra
4、tegy Committee on 31 March 2015.Amendments issued since publicationDate Text affectedBS ISO 15589-1:2015 ISO 2015Petroleum, petrochemical and natural gas industries Cathodic protection of pipeline systems Part 1: On-land pipelinesIndustries du ptrole, de la ptrochimie et du gaz naturel Protection ca
5、thodique des systmes de transport par conduites Partie 1: Conduites terrestresINTERNATIONAL STANDARDISO15589-1Second edition2015-03-01Reference numberISO 15589-1:2015(E)BS ISO 15589-1:2015ISO 15589-1:2015(E)ii ISO 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2015All rights reserved. Unle
6、ss otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the a
7、ddress below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 15589-1:2015ISO 15589-1:2015(E)Foreword viIntroduction vii1 Scope . 12
8、 Normative references 13 Terms and definitions . 24 Symbols and abbreviations . 54.1 Symbols . 54.2 Abbreviations . 75 CP personnel competence . 76 Cathodic protection criteria . 86.1 General . 86.2 Protection potentials . 86.3 Alternative methods 106.3.1 100 mV cathodic potential shift . 106.3.2 Ot
9、her methods 106.4 Criteria in the presence of a.c. . 107 Pre-requisites for the application of cathodic protection 107.1 General 107.2 Electrical continuity 107.3 Electrical isolation 117.3.1 General. 117.3.2 Locations 117.3.3 Isolating joints 117.3.4 Internal corrosion risks at isolating joints .12
10、7.3.5 Contacts between metallic structures 137.3.6 Electrical earthing system 137.4 Lightning and overvoltage protection 147.5 Coating 157.5.1 General. 157.5.2 Factory-applied coatings 157.5.3 Field joint coatings 157.5.4 Coating for trenchless pipelines 157.5.5 Air to electrolyte interface 167.5.6
11、Compatibility of coatings and wraps with cathodic protection .167.5.7 Thermal insulation 167.5.8 Reinforced concrete weight coating .177.6 Selection of pipe trench backfill material . 177.7 Buried casings for pipelines . 177.7.1 General. 177.7.2 Casings that shield cathodic protection current 177.7.
12、3 Casings that pass cathodic protection current 187.8 Equipment for the reduction of a.c. interference .187.9 Equipment for the mitigation of d.c. interference .18 ISO 2015 All rights reserved iiiContents PageBS ISO 15589-1:2015ISO 15589-1:2015(E)8 Basic requirements for cathodic protection design .
13、188.1 General 188.2 Basic information for cathodic protection design .198.3 Contents of cathodic protection design report 208.4 Cathodic protection current demand . 208.4.1 Calculation of the theoretical total current demand 208.4.2 Current demand based on coating breakdown factors218.4.3 Current de
14、mand based on current density values for coated pipelines .228.5 Cathodic protection equipment . 238.5.1 Cathodic protection cables . 238.5.2 Cable connection .248.5.3 Precautions to respect for distribution boxes and test stations 258.6 Temporary protection 268.7 Specific case of existing pipelines
15、 268.7.1 General. 268.7.2 Parallel pipelines 278.7.3 Parallelism or crossing with a.c. power systems .278.8 Trenchless installation methods . 279 Impressed current stations 289.1 General 289.2 Power supply . 289.3 Groundbeds . 299.3.1 General. 299.3.2 Deep-well groundbeds .299.3.3 Shallow groundbeds
16、 309.3.4 Impressed-current anodes and conductive backfill .319.4 Output control 329.4.1 General. 329.4.2 Current distribution for multiple pipelines .329.4.3 Potential control 3310 Galvanic anode systems 3310.1 General 3310.2 Design requirements 3410.3 Zinc anodes . 3410.4 Magnesium anodes . 3510.5
17、Design of the anode system 3710.6 Anode backfill . 3810.7 Cables and cable connections 3910.8 Anode installation . 3911 Monitoring facilities .3911.1 General 3911.2 Locations of test stations. 3911.3 Description of test stations . 4011.4 Use of probes and coupons 4011.5 Bonding to other pipelines 41
18、11.6 Test facilities at cased crossings 4111.7 Test facilities at isolating joints . 4111.8 Line current monitoring test stations 4111.9 Drain-point test facilities . 4111.10 Miscellaneous monitoring facilities . 41iv ISO 2015 All rights reservedBS ISO 15589-1:2015ISO 15589-1:2015(E)12 Commissioning
19、 4112.1 General 4112.2 Preliminary tests 4212.3 Start up . 4312.3.1 Impressed current stations 4312.3.2 Galvanic anodes .4312.3.3 Drainage stations 4412.3.4 Test stations 4412.4 Verification of cathodic protection effectiveness .4412.4.1 General. 4412.4.2 Measurements of d.c. potential and a.c. volt
20、age.4412.4.3 Current measurements4512.4.4 Adjustments 4512.5 Commissioning report . 4512.5.1 Installation documentation . 4512.5.2 Commissioning measurements 4513 Monitoring, inspection, and maintenance 4613.1 General 4613.2 Implementation of inspection. 4713.3 Periodicities of inspection 4713.4 Rem
21、ote monitoring 5013.5 Specialized surveys 5013.6 Monitoring plan . 5013.7 Monitoring equipment 5013.8 Maintenance and repair . 5114 Documentation 5114.1 Design documentation 5114.1.1 General. 5114.1.2 Construction details and installation procedures 5214.2 Commissioning documentation 5314.3 Operatin
22、g and maintenance documentation . 5314.3.1 General. 5314.3.2 Inspection and monitoring data 5414.3.3 Maintenance records .54Annex A (normative) Cathodic protection measurements .55Annex B (normative) Electrical interference 63Annex C (informative) Fault detection of impressed-current systems during
23、operation 67Annex D (informative) Description of specialized surveys 69Annex E (informative) Attenuation of protection .76Annex F (informative) Electrical tests for isolating joints before installation .79Bibliography .80 ISO 2015 All rights reserved vBS ISO 15589-1:2015ISO 15589-1:2015(E)ForewordIS
24、O (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical co
25、mmittee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electro
26、technical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was draf
27、ted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent ri
28、ghts. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not const
29、itute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe com
30、mittee responsible for this document is ISO/TC 67, Materials, equipment and offshore structures for petroleum, petrochemical and natural gas industries, Subcommittee SC 2, Pipeline transportation systems.This second edition cancels and replaces the first edition (ISO 15589-1:2003), which has been te
31、chnically revised with the following changes: cathodic protection criteria have been extended with further clarification on the application of the criteria; requirements for design have been more detailed and periodicities for inspection of cathodic equipment have been enlarged, and the option for r
32、emote monitoring added; requirements for measurements and testing during commissioning have been further detailed.ISO 15589 consists of the following parts, under the general title Petroleum, petrochemical and natural gas industries Cathodic protection of pipeline systems: Part 1: On-land pipelines
33、Part 2: Offshore pipelinesvi ISO 2015 All rights reservedBS ISO 15589-1:2015ISO 15589-1:2015(E)IntroductionPipeline cathodic protection is achieved by the supply of sufficient direct current to the external pipe surface, so that the steel-to-electrolyte potential is lowered to values at which extern
34、al corrosion is reduced to an insignificant rate.Cathodic protection is normally used in combination with a suitable protective coating system to protect the external surfaces of steel pipelines from corrosion.It is necessary that users of this part of ISO 15589 be aware that further or differing re
35、quirements can be needed for individual applications. This part of ISO 15589 is not intended to inhibit the use of alternative equipment or engineering solutions for the individual application. This can be particularly applicable where there is innovative or developing technology. It is necessary th
36、at, where an alternative is offered, any variations from this part of ISO 15589 be identified and documented. ISO 2015 All rights reserved viiBS ISO 15589-1:2015BS ISO 15589-1:2015Petroleum, petrochemical and natural gas industries Cathodic protection of pipeline systems Part 1: On-land pipelines1 S
37、copeThis part of ISO 15589 specifies requirements and gives recommendations for the pre-installation surveys, design, materials, equipment, installation, commissioning, operation, inspection, and maintenance of cathodic protection systems for on-land pipelines, as defined in ISO 13623 or EN 14161 fo
38、r the petroleum, petrochemical, and natural gas industries, and in EN 1594 or EN 12007-1 and EN 12007-3 used by gas supply industries in Europe.All contents of this part of ISO 15589 are applicable to on-land pipelines and piping systems used in other industries and transporting other media such as
39、industrial gases, waters, or slurries.This part of ISO 15589 applies to buried pipelines, landfalls of offshore pipeline sections protected by on-shore based cathodic protection installations, and to immersed sections of on-land pipelines such as river or lake crossings.This part of ISO 15589 specif
40、ies requirements for pipelines of carbon steel, stainless steel, cast iron, galvanized steel, or copper. If other pipeline materials are used, the criteria to apply are defined under the responsibility of the pipeline operator.This part of ISO 15589 does not apply to pipelines made of reinforced con
41、crete for which EN 12696 can be applied.NOTE Special conditions sometimes exist where cathodic protection is ineffective or only partially effective. Such conditions can include shielding (e.g. disbonded coatings, thermal-insulating coatings, rocky soil, etc.) and unusual contaminants in the electro
42、lyte.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any a
43、mendments) applies.ISO 8044, Corrosion of metals and alloys Basic terms and definitionsISO 10012, Measurement management systems Requirements for measurement processes and measuring equipmentISO 13623, Petroleum and natural gas industries Pipeline transportation systemsISO 13847, Petroleum and natur
44、al gas industries Pipeline transportation systems Welding of pipelinesISO 21809 (all parts), Petroleum and natural gas industries External coatings for buried or submerged pipelines used in pipeline transportation systemsIEC 60079-10-1, Explosive atmospheres Part 10-1: Classification of areas Explos
45、ive gas atmospheresIEC 60529, Degrees of protection provided by enclosures (IP Code)EN 1594, Gas infrastructure Pipelines for maximum operating pressure over 16 bar Functional requirementsINTERNATIONAL STANDARD ISO 15589-1:2015(E) ISO 2015 All rights reserved 1BS ISO 15589-1:2015ISO 15589-1:2015(E)E
46、N 12007-3, Gas supply systems Pipelines for maximum operating pressure up to and including 16 bar Part 3: Specific functional recommendations for steelEN 12496, Galvanic anodes for cathodic protection in seawater and saline mudEN 14161Petroleum and natural gas industries Pipeline transportation syst
47、ems (ISO 13623:2009 modified)EN 50164-3, Lightning Protection Components (LPC) Part 3: Requirements for isolating spark gaps3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 8044 and the following apply.3.1anode backfilladded material immediately surrou
48、nding a buried anode3.2bondmetal conductor, usually copper, connecting two points on the same or on different structures3.3cathodic protection systemall active and passive components associated with the provision of active external corrosion protection and its monitoringNote 1 to entry: Cathodic pro
49、tection is obtained either by impressed current or by galvanic anodes using one or more stations.Note 2 to entry: Impressed current and galvanic anode systems consist of all the equipment necessary for the application of cathodic protection, such as impressed current stations, galvanic anodes, bonds, and isolating joints.3.4couponmetal sample of defined dimensions made of a metal equivalent to the metal of the pipeline3.5coating breakdown factorratio of current density required to polarize a coated steel surface as
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