DIN EN ISO 12696-2017 Cathodic protection of steel in concrete (ISO 12696 2016) German version EN ISO 12696 2016《混凝土中钢的阴极保护(ISO 12696-2016) 德文版本EN ISO 12696-2016》.pdf

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1、May 2017 English price group 23No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 77.060; 77.140.15!%d?“2659428www.din

2、.deDIN EN ISO 12696Cathodic protection of steel in concrete (ISO 12696:2016);English version EN ISO 12696:2016,English translation of DIN EN ISO 12696:2017-05Kathodischer Korrosionsschutz von Stahl in Beton (ISO 12696:2016);Englische Fassung EN ISO 12696:2016,Englische bersetzung von DIN EN ISO 1269

3、6:2017-05Protection cathodique de lacier dans le bton (ISO 12696:2016);Version anglaise EN ISO 12696:2016,Traduction anglaise de DIN EN ISO 12696:2017-05SupersedesDIN EN ISO 12696:201205www.beuth.deDocument comprises 56 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language or

4、iginal shall be considered authoritative.05.17 DIN EN ISO 12696:2017-05 2 A comma is used as the decimal marker. National foreword This standard (ISO 12696:2016) has been prepared by Technical Committee ISO/TC 156 “Corrosion of metals and alloys” (Secretariat: SAC, China) in collaboration with Techn

5、ical Committee CEN/TC 219 “Cathodic protection” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was DIN-Normenausschuss Materialprfung (DIN Standards Committee Materials Testing), Working Committee NA 062-01-78 AA “Cathodic protection”. The DIN Standards c

6、orresponding to the International Standards referred to in this document are follows: ISO 8044 ISO 9000 ISO 13174 IEC 60529 IEC 61140 IEC 615581 IEC 61558-2-1 IEC 61558-2-2 IEC 61558-2-4 IEC 61558-2-13 IEC 61558-2-16 DIN EN ISO 8044 DIN EN ISO 9000 DIN EN ISO 13174 DIN EN 60529 DIN EN 61140 DIN EN 6

7、1558-1 DIN EN 61558-2-1 DIN EN 61558-2-2 DIN EN 61558-2-4 DIN EN 61558-2-13 DIN EN 61558-2-16 Amendments This standard differs from DIN EN ISO 12696:2012-05 as follows: a) it has been slightly revised; a value in Table A.1 has been amended; b) the standard has been editorially revised. Previous edit

8、ions DIN EN 12696: 2000-06 DIN EN ISO 12696: 2012-05 DIN EN ISO 12696:2017-05 3 National Annex NA (informative) Bibliography DIN EN 60529, Degrees of protection provided by enclosures (IP Code) DIN EN 61140, Protection against electric shock Common aspects for installation and equipment DIN EN 61558

9、-1, Safety of power transformers, power supplies, reactors and similar products Part 1: General requirements and tests DIN EN 61558-2-1, Safety of power transformers, power supplies, reactors and similar products Part 2-1: Particular requirements and tests for separating transformers and power suppl

10、ies incorporating separating transformers for general applications DIN EN 61558-2-2, Safety of power transformers, power supplies, reactors and similar products Part 2-2: Particular requirements and tests for control transformers and power supplies incorporating control transformers DIN EN 61558-2-4

11、, Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V Part 2-4: Particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers DIN EN 61558-2-13, Safety of transformers, reactors, power

12、supply units and similar products for supply voltages up to 1 100 V Part 2-13: Particular requirements and tests for auto transformers and power supply units incorporating auto transformers DIN EN 61558-2-16, Safety of transformers, reactors, power supply units and similar products for supply voltag

13、es up to 1 100 V Part 2-16: Particular requirements and tests for switch mode power supply units and transformers for switch mode power supply units DIN EN ISO 8044, Corrosion of metals and alloys Basic terms and definitions DIN EN ISO 9000, Quality management systems Fundamentals and vocabulary DIN

14、 EN ISO 13174, Cathodic protection of harbour installations DIN EN ISO 12696:2017-05 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 12696 December 2016 ICS 77.140.15; 77.060 Supersedes EN ISO 12696:2012English Version Cathodic protection of steel in concr

15、ete (ISO 12696:2016)Protection cathodique de lacier dans le bton(ISO 12696:2016) Kathodischer Korrosionsschutz von Stahl in Beton(ISO 12696:2016) This European Standard was approved by CEN on 24 November 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate

16、the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standa

17、rd exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the natio

18、nal standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slov

19、akia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means

20、 reserved worldwide for CEN national Members. Ref. No. EN ISO 12696:2016 EEuropean foreword .4Introduction . 61 Scope . 72 Normative references 73 Terms and definitions . 84 General 84.1 Quality management systems 84.2 Personnel . 94.3 Design . 95 Structure assessment and repair 95.1 General . 95.2

21、Records . 105.3 Visual inspection and delamination survey 105.4 Chloride analysis 105.5 Carbonation depth measurement 105.6 Concrete cover and reinforcement location 105.7 Reinforcement electrical continuity 105.8 Steel/concrete potential 115.9 Concrete electrical resistivity 115.10 Repair . 115.10.

22、1 General. 115.10.2 Concrete removal 115.10.3 Reinforcement preparation . 125.10.4 Concrete reinstatement 125.11 Cementitious overlay 125.12 New structures . 136 Cathodic protection system components . 136.1 General 136.2 Anode systems 146.2.1 Conductive coating anode systems . 146.2.2 Activated tit

23、anium anode systems . 156.2.3 Titania ceramic anodes .176.2.4 Conductive cementitious anodes 176.2.5 Embedded galvanic anodes . 176.2.6 Surface-mounted galvanic anodes .176.2.7 Buried and immersed anodes176.3 Monitoring sensors 196.3.1 General. 196.3.2 Portable reference electrodes . 206.3.3 Other s

24、ensors .206.4 Monitoring instrumentation 216.4.1 General. 216.4.2 Digital meters 216.4.3 Data loggers 216.5 Data management system 226.6 Direct current cables . 236.7 Junction boxes . 246.8 Power supplies . 246.9 Transformer-rectifiers . 24Contents PageDIN EN ISO 12696:2017-05 EN ISO 12696:2016 (E)

25、2Foreword 57.3 Connections to steel in concrete . 277.4 Concrete repairs associated with the cathodic protection components 277.5 Surface preparation for anode installation 277.6 Anode installation . 287.7 Connections to the anode system 287.8 Anode overlay, surface sealant or decorative coating app

26、lication 287.9 Electrical installation 297.10 Testing during installation . 298 Commissioning 308.1 Visual inspection 308.2 Pre-energizing measurements . 308.3 Initial energizing of impressed current systems 318.4 Initial adjustment of impressed current systems 318.5 Initial performance assessment 3

27、18.6 Criteria of protection: Interpretation of performance assessment data 328.7 Adjustment of protection current for impressed current systems .349 System records and documentation 349.1 Quality and test records . 349.2 Installation and commissioning report 349.3 Operation and maintenance manual .

28、2510 Operation and maintenance 2510.1 Intervals and procedures 2510.2 System review . 3610.3 System review report . 36Annex A (informative) Principles of cathodic protection and its application to steel in concrete .37Annex B (informative) Design process 43Annex C (informative) Notes on anode system

29、s .46Bibliography .51DIN EN ISO 12696:2017-05 EN ISO 12696:2016 (E)37 Installation procedures 267.1 Electrical continuity 267.2 Performance monitoring system 26European foreword This document (EN ISO 12696:2016) has been prepared by Technical Committee ISO/TC 156 “Corrosion of metals and alloys“ in

30、collaboration with Technical Committee CEN/TC 219 “Cathodic protection” the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2017, and conflicting national

31、 standards shall be withdrawn at the latest by June 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN

32、ISO 12696:2012. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedo

33、nia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 12696:2016 has been approved by CEN

34、as EN ISO 12696:2016 without any modification. DIN EN ISO 12696:2017-05 EN ISO 12696:2016 (E) 4 ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carri

35、ed out through ISO technical committees. Each member body interested in a subject for which a technical committee 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. I

36、SO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical 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

37、 approval criteria needed for the different types of ISO documents should be noted. This document was drafted 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

38、the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. 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).A

39、ny trade name used in this document is information given for the convenience of users and does not constitute 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 World Trade Organi

40、zation (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.The committee responsible for this document is ISO/TC 156, Corrosion of metals and alloys.This second edition cancels and replaces the first edition (ISO 12696:2012), of which it con

41、stitutes a minor revision with the following changes: figures for MnO2, NaOH (0,5 M) in Table A.1 have been updated; general editorial corrections throughout the document.DIN EN ISO 12696:2017-05 EN ISO 12696:2016 (E)5 IntroductionThis document applies to cathodic protection of steel in concrete, wi

42、th the concrete atmospherically exposed, buried or immersed.Because the criteria of protection for steel in buried or immersed concrete are those applicable to cathodic protection of steel in atmospherically exposed concrete, this revision of EN 12696:2000 incorporates cathodic protection of steel i

43、n buried and immersed concrete. The provision of cathodic protection current can often be more economically provided to steel in buried and immersed concrete by using buried or immersed anode systems detailed in International Standards for buried and immersed steel structures, rather than the anode

44、systems that are suitable for applications to steel in atmospherically exposed concrete. Therefore, reference is made to other International Standards in this respect while the cathodic protection performance criteria for steel in concrete are defined in this document for all exposures.There are oth

45、er electrochemical treatments intended to provide corrosion control for steel in concrete. These techniques include re-alkalization and chloride extraction and are not incorporated into this document. CEN/TS 14038-1:2004 and CEN/TS 14038-2:2011 have been published.Cathodic protection of steel in con

46、crete is a technique that has been demonstrated to be successful in appropriate applications in providing cost effective long-term corrosion control for steel in concrete. It is a technique that requires specific design calculations and definition of installation procedures in order to be successful

47、ly implemented. This document does not represent a design code for cathodic protection of steel in concrete, but represents a performance standard for which it is anticipated, in order to comply with this document, a detailed design and specification for materials, installation, commissioning and op

48、eration will be prepared.DIN EN ISO 12696:2017-05 EN ISO 12696:2016 (E) 6 1 ScopeThis document specifies performance requirements for cathodic protection of steel in cement-based concrete, in both new and existing structures. It covers building and civil engineering structures, including normal reinforcement and prestressed reinforcement embedded in the concrete. It is applicable to uncoated steel reinforcement and to organic-coated steel reinforcement.This document applies to steel embedded in atmospherically exposed, buried, immer