I.S. EN 12495:2000
Current
The latest, up-to-date edition.
CATHODIC PROTECTION FOR FIXED STEEL OFFSHORE STRUCTURES
Hardcopy , PDF
English
01-01-2000
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.
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
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