EN 12495:2000

Foreword
Introduction
1 Scope
   1.1 Structural parts
   1.2 Materials
   1.3 Environment
2 Normative references
3 Terms and definitions
4 Design basis
   4.1 Objectives
   4.2 Cathodic protection criteria
   4.3 Electrical current demand
   4.4 Coatings
   4.5 Cathodic protection systems - Anode dimensions
5 Design of galvanic anodes system
   5.1 General
   5.2 Design considerations
   5.3 Galvanic anode materials
   5.4 Location of anodes
   5.5 Anodes' inserts and attachments design
6 Design of impressed current system
   6.1 General
   6.2 Design considerations
   6.3 Equipment considerations
   6.4 Location considerations
7 Design of monitoring systems
   7.1 Objectives
   7.2 Description
   7.3 Potential measurements
   7.4 Measurement of the anode electrical current output
   7.5 Transmission of data
   7.6 Control and monitoring of impressed current generators
8 Installation of cathodic protection and monitoring systems
9 Commissioning and surveying of cathodic protection systems
   9.1 Objectives
   9.2 Galvanic anode system
   9.3 Impressed current system
10 Documentation
   10.1 General
   10.2 Galvanic anodes system
   10.3 Impressed current system
11 Safety and cathodic protection
   11.1 Objectives
   11.2 Physical obstructions
   11.3 Electric shock
   11.4 Gas evolution
Annex A (informative) Guidance on current requirement for
        cathodic protection of fixed steel offshore structures
Annex B (informative) Anode resistance and life duration
        formulae
Annex C (informative) Recommendations for anode installation
Annex D (informative) Safety precautions for impressed
        current system
Annex E (informative) Typical electrochemical characteristics
        for commonly used impressed current anodes
Bibliography

This european standard defines the means to be used to cathodically protect the submerged areas of fixed steel offshore structures and appurtenances.