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UNI EN 12954 : 2002

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 BURIED OR IMMERSED METALLIC STRUCTURES - GENERAL PRINCIPLES AND APPLICATION FOR PIPELINES

Superseded date

10-10-2019

Published date

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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