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AS 2832.3-1992

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 metals - Fixed immersed structures
Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

06-30-2017

Published date

01-01-1992

Publisher

Standards Australia

Preview

1 - AS 2832.3-1992 CATHODIC PROTECTION OF METALS - FIXED IMMERSED STRUCTURES
4 - PREFACE
5 - CONTENTS
7 - FOREWORD
8 - SECTION 1 SCOPE AND GENERAL
8 - 1.1 SCOPE
8 - 1.2 REFERENCED DOCUMENTS
8 - 1.3 DEFINITIONS
11 - SECTION 2 DESIGN OF STRUCTURES FOR CATHODIC PROTECTION
11 - 2.1 GENERAL
11 - 2.2 STRUCTURE COATING
11 - 2.3 TEST POINTS
11 - 2.4 ISOLATION OF STRUCTURE
12 - 2.5 ELECTRICAL CONTINUITY
13 - SECTION 3 COATINGS FOR USE WITH CATHODIC PROTECTION
13 - 3.1 GENERAL
13 - 3.2 COATING PROPERTIES
13 - 3.3 COATING CHOICE
14 - 3.4 COATING LIFE
15 - SECTION 4 CRITERIA FOR CATHODIC PROTECTION
15 - 4.1 GENERAL
15 - 4.2 FERROUS STRUCTURES
15 - 4.2.1 Immersed structures
15 - 4.2.2 Alternative protection criteria
15 - 4.3 COPPER/COPPER ALLOY STRUCTURES
15 - 4.4 ALUMINIUM STRUCTURES
15 - 4.5 MIXED METALLIC STRUCTURES
15 - 4.6 MEASUREMENT OF POTENTIAL
15 - 4.6.1 Polarized potential measurement
16 - 4.7 OVERPROTECTION
17 - SECTION 5 DESIGN OF CATHODIC PROTECTION SYSTEMS
17 - 5.1 GENERAL
17 - 5.2 SAFETY PRECAUTIONS
17 - 5.3 CHOICE OF SYSTEM- IMPRESSED CURRENT OR GALVANIC ANODES
18 - 5.4 CONTROL OF INTERFERENCE CURRENTS
18 - 5.5 CABLES
18 - 5.5.1 General
18 - 5.5.2 Types of cable
18 - 5.5.3 Test cables
19 - 5.5.4 Impressed current anode cables
19 - 5.5.5 Galvanic anode cables
19 - 5.6 CHECK LIST FOR INITIAL SURVEYS
19 - 5.7 DETERMINATION OF CATHODIC PROTECTION CURRENT REQUIREMENTS
19 - 5.7.1 General
19 - 5.7.2 Basic procedures
20 - 5.7.3 Determination of exposed surface area
20 - 5.7.4 Prediction of current requirement
21 - 5.7.5 Calculation of the current capacity
21 - 5.7.6 Anode layout design
22 - 5.7.7 Determination of resistance of the anode or anode array to the electrolyte
22 - 5.7.8 Determination of anode output current
23 - 5.7.9 Galvanic anode mass requirement
23 - 5.8 ANODE ARRANGEMENTS
23 - 5.8.1 General
23 - 5.8.2 Calculation of appropriate anode/structure separation
24 - 5.8.3 Positioning of anodes
24 - 5.9 ANODE MATERIALS AND APPLICATIONS
24 - 5.10 POWER SUPPLY FOR IMPRESSED CURRENT SYSTEMS
24 - 5.10.1 Sources of direct current
24 - 5.10.2 Equipment
24 - 5.10.3 Calculation of voltage requirements
25 - 5.11 BACKFILL
25 - 5.12 SYSTEM DESIGN DOCUMENTATION
27 - SECTION 6 INSTALLATION OF CATHODIC PROTECTION SYSTEMS
27 - 6.1 GENERAL
27 - 6.2 MATERIALS AND EQUIPMENT ACCEPTANCE TESTS
27 - 6.2.1 General
27 - 6.2.2 Anodes
27 - 6.2.3 Cables
27 - 6.2.4 Transformer/rectifier equipment
27 - 6.2.5 Prefabricated insulating joints
28 - 6.3 INSTALLATION OF GALVANIC ANODE SYSTEMS
28 - 6.4 INSTALLATION OF IMPRESSED CURRENT SYSTEMS
28 - 6.4.1 Anodes and cabling
28 - 6.4.2Transformer/rectifier
28 - 6.5 INSTALLATION OF INSULATING FLANGES AND DEVICES
29 - SECTION 7 CONTROL OF INTERFERENCE CURRENTS FROM CATHODIC PROTECTION SYSTEMS TO MINIMIZE THEIR EFFECT ON FOREIGN STRUCTURES
29 - 7.1 GENERAL
29 - 7.2 REGULATORY REQUIREMENTS
29 - 7.3 MINIMIZATION OF INTERFERENCE CURRENT
29 - 7.3.1 Design of the system
29 - 7.3.2 Detection of interference levels
30 - 7.3.3 Control of interference
31 - SECTION 8 OPERATION AND MAINTENANCE OF CATHODIC PROTECTION SYSTEMS
31 - 8.1 GENERAL
31 - 8.2 MEASURING TECHNIQUES
32 - 8.3 COMMISSIONING SURVEY
32 - 8.4 CATHODIC PROTECTION POTENTIAL SURVEYS
32 - 8.5 EQUIPMENT MAINTENANCE CHECKS
32 - 8.5.1 For impressed current systems
32 - 8.5.2 For galvanic anode installations
32 - 8.6 STRUCTURE INSPECTIONS
32 - 8.7 RECORDS
34 - APPENDIX A - GUIDANCE ON THE GENERAL USE OF CATHODIC PROTECTION
34 - A1 SCOPE
34 - A2 GENERAL COMPONENTS OF CATHODIC PROTECTION INSTALLATIONS
34 - A3 FACTORS AFFECTING THE CORROSION OF METALLIC STRUCTURES
37 - APPENDIX B - CONTROL OF INTERFERENCE CURRENTS - LIST OF ELECTROLYSIS COMMITTEES

Provides guidelines for the cathodic protection of external surfaces of fixed structures which are immersed in various types of water including sea water, and covers the design, installation, operation and maintenance of cathodic protection systems.

This Standard provides guidelines for the cathodic protection of external surfaces of fixed immersed structures, including offshore platforms, wharves, jetties, pontoons, sewage treatment plants, water treatment plants, lock gates, dam gates, pump station piles in rivers, weirs, mooring buoys, piling, foundations and water inlet/outlet structures.The Standard specifically covers the following subjects which relate to cathodic protection:(a) The design of structures requiring cathodic protection.(b) Coatings for use on immersed metal structures.(c) Criteria for the choice of cathodic protection potential.(d) The design of cathodic protection systems.(e) The installation of cathodic protection systems.(f) The control of interference currents on foreign structures.(g) The cathodic protection of structures subject to stray direct current.(h) The operation and maintenance of cathodic protection systems.NOTES: 1 Guidance on the general use and design of cathodic protection systems and factors affecting the corrosion of immersed metallic structures are given in Appendix A.2 This Standard employs positive current flow, and uses the potential sign conventions specified in AS 1852.

Committee
MT-014
DocumentType
Standard
ISBN
0 7262 7291 4
Pages
30
PublisherName
Standards Australia
Status
Superseded
SupersededBy
Supersedes
UnderRevision

First published as AS 2832.3-1992.

AS 2053-1984 Non-metallic conduits and fittings
AS 1768-1991 Lightning protection
AS 3000-1986 Electrical installations - Buildings, structures and premises (known as the SAA Wiring Rules)
AS 2430.1-1987 Classification of hazardous areas - Explosive gas atmospheres
AS 1020-1984 The control of undesirable static electricity
AS 3147-1992 Approval and test specification - Electric cables - Thermoplastic insulated - For working voltages up to and including 0.6/1 kV
AS 3859-1991 Effects of current passing through the human body
AS 3100-1990 Approval and test specification - General requirements for electrical equipment
AS 1076.1-1977 Code of practice for the selection, installation and maintenance of electrical apparatus and associated equipment for use in explosive atmospheres (other than mining applications) Basic requirements
AS 1627.4-1989 Metal finishing - Preparation and pretreatment of sufaces - Abrasive blast cleaning
AS 2239-1993 Galvanic (sacrificial) anodes for cathodic protection
AS 1627.7-1988 Metal finishing - Preparation and pretreatment of surfaces - Hand tool cleaning of metal surfaces
AS 3108-1990 Approval and test specification - Particular requirements for isolating transformers and safety isolating transformers
AS 2052-1977 Metallic conduits and fittings
AS 1852.00-1980 International electrotechnical vocabulary - General index

AS 2832.5-2002 Cathodic protection of metals - Steel in concrete structures
AS 2159-1995 Piling - Design and installation
AS/NZS 61241.14:2005 Electrical apparatus for use in the presence of combustible dust Selection and installation (IEC 61241-14, Ed.1.0(2004) MOD)
AS 4997-2005 Guidelines for the design of maritime structures
AS/NZS 2312:2002 Guide to the protection of structural steel against atmospheric corrosion by the use of protective coatings
AS/NZS 2381.1:2005 Electrical equipment for explosive gas atmospheres - Selection, installation and maintenance - General requirements
AS 4036-1992 Corrosion of metal - Dissimilar metals in contact in seawater

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Hardcopy - English
PDF 1 User - English
PDF 3 Users - English
PDF 5 Users - English
PDF 9 Users - English
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