• I.S. EN 12954:2001

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    CATHODIC PROTECTION OF BURIED OR IMMERSED METALLIC STRUCTURES - GENERAL PRINCIPLES AND APPLICATION FOR PIPELINES

    Available format(s):  Hardcopy, PDF

    Superseded date:  10-09-2019

    Language(s):  English

    Published date:  01-01-2001

    Publisher:  National Standards Authority of Ireland

    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.

    Dates of withdrawal of national standards are available from NSAI.

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Symbols, terms and definitions
       3.1 Symbols
       3.2 Terms and definitions
    4 Principle and criteria of cathodic protection
       4.1 Principle of cathodic protection
       4.2 Criteria of cathodic protection
       4.3 Influence of alternating current on cathodically
            protected structures
    5 Prerequisites for application of cathodic protection
       5.1 General
       5.2 Electrical continuity
       5.3 Electrical isolation
       5.4 External coating
    6 Base data for design
       6.1 General
       6.2 Structure details
       6.3 Coating
       6.4 Environment
       6.5 Pipelines specific data
    7 Design and prerequisites
       7.1 General
       7.2 Electrical isolation
       7.3 Test stations
       7.4 Bonding
       7.5 Buried sleeve pipes for pipelines
       7.6 Wall entries, restraints, saddles and anchors
            for pipelines
       7.7 Bridges
       7.8 Electrically operated equipment
       7.9 Lighting protection
       7.10 Equipment for the reduction of a.c. interference
       7.11 Cathodic protection systems
       7.12 Drainage stations
       7.13 Design and design documents
    8 Installation of cathodic protection systems
       8.1 General
       8.2 Cables
       8.3 Galvanic anodes
       8.4 Impressed current systems
       8.5 Test stations
       8.6 Drainage stations
       8.7 As built documentation
    9 Commissioning
       9.1 Preliminary checking
       9.2 Start up
       9.3 Verification of the cathodic protection
            effectiveness
       9.4 Installation and commissioning documents
    10 Inspection and maintenance
       10.1 General
       10.2 Factors influencing inspection frequency
       10.3 Inspection
       10.4 Maintenance
       10.5 Results of inspection
    Annex A (informative) a.c. interference
    Bibliography

    Abstract - (Show below) - (Hide below)

    Describes the general principles for the implementation of a system of cathodic protection against corrosive attacks on buried or immersed metal structures with and without the influence of external electrical sources.

    General Product Information - (Show below) - (Hide below)

    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Superseded
    Superseded By

    Standards Referenced By This Book - (Show below) - (Hide below)

    I.S. 821:2006 GAS PRESSURE REGULATING STATIONS FOR DISTRIBUTION
    I.S. 329:2015 GAS DISTRIBUTION MAINS (EDITION 3)
    I.S. 822:2007 GAS PRESSURE REGULATING INSTALLATIONS ON SERVICE PIPELINES
    I.S. 328:2015/AC1:2015 GAS TRANSMISSION PIPELINES AND PIPELINE INSTALLATIONS (EDITION 4)
    I.S. 3216:2010 CODE OF PRACTICE - BULK STORAGE OF LIQUEFIED PETROLEUM GAS (LPG) - (EDITION 2)
    I.S. 328:2015 GAS TRANSMISSION PIPELINES AND PIPELINE INSTALLATIONS (EDITION 4)

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 60079-10:2002 Electrical apparatus for explosive gas atmospheres - Part 10: Classification of hazardous areas
    EN 12473:2014 General principles of cathodic protection in seawater
    EN ISO 8044:2015 Corrosion of metals and alloys - Basic terms and definitions (ISO 8044:2015)
    EN 60079-10:2003 Electrical apparatus for explosive gas atmospheres - Part 10: Classification of hazardous areas
    IEC 60079-14:2013 Explosive atmospheres - Part 14: Electrical installations design, selection and erection
    EN 60079-14:2014/AC:2016 EXPLOSIVE ATMOSPHERES - PART 14: ELECTRICAL INSTALLATIONS DESIGN, SELECTION AND ERECTION (IEC 60079-14:2013/COR1:2016)
    EN 12696 : 2000 CATHODIC PROTECTION OF STEEL IN CONCRETE
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