UNI EN 12954 : 2002
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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CATHODIC PROTECTION OF BURIED OR IMMERSED METALLIC STRUCTURES - GENERAL PRINCIPLES AND APPLICATION FOR PIPELINES
10-10-2019
01-01-2002
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
Gives 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.
| DevelopmentNote |
Supersedes UNI 10362 and UNI 9782. (10/2002)
|
| DocumentType |
Standard
|
| PublisherName |
Ente Nazionale Italiano di Unificazione (UNI)
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| NF EN 12954 : 2001 | Identical |
| NBN EN 12954 : 2001 | Identical |
| NEN EN 12954 : 2001 | Identical |
| NS EN 12954 : 1ED 2001 | Identical |
| UNE-EN 12954:2002 | Identical |
| I.S. EN 12954:2001 | Identical |
| SN EN 12954 : 2001 | Identical |
| BS EN 12954:2001 | Identical |
| EN 12954:2001 | Identical |
| DIN EN 12954:2001-04 | Identical |
| ONORM EN 12954 : 2001 | Identical |
| UNI/TS 11343 : 2009 | GAS PLANTS FOR DOMESTIC USE - GAS PLANTS FOR DOMESTIC USES SUPPLIED BY DISTRIBUTION NETWORKS, BY LPG CYLINDERS AND LPG STORAGE TANKS, PERFORMED WITH MULTILAYER PIPES - DESIGN, INSTALLATION AND MAINTENANCE |
| UNI 11528 : 2014 | GAS PLANTS OVER 35 KW - DESIGN, INSTALLATION AND COMMISSIONING |
| UNI 10682 : 2010 | SMALL BULK LPG FACILITIES FOR DISTRIBUTION NETWORK - DESIGN, CONSTRUCTION, INSTALLATION, TESTING AND OPERATION |
| UNI 9182 : 2014 | HOT AND COLD WATER SUPPLY AND DISTRIBUTION INSTALLATIONS - DESIGN, INSTALLATION AND TESTING |
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