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CEN - EN 12954

General principles of cathodic protection of buried or immersed onshore metallic structures

active, Most Current
Organization: CEN
Publication Date: 1 August 2019
Status: active
Page Count: 44
ICS Code (Other pipeline components): 23.040.99
ICS Code (Corrosion of metals): 77.060
scope:

This document describes the general principles for the implementation and management of a system of cathodic protection against corrosive attacks on structures which are buried or in contact with soils, surface fresh waters or underground waters, with and without the interference of external electrical sources. It specifies the protection criteria to be achieved to demonstrate the cathodic protection effectiveness.

For structures that cannot be electrically isolated from neighbouring influencing structures, it may be impossible to use the criteria defined in the present document. In this case, EN 14505 will be applied (see 9.4 "Electrical continuity/discontinuity").

NOTE To assist in forming a decision whether or not to apply cathodic protection the corrosion likelihood can be evaluated using informative Annex A which summarizes the requirements of EN 12501-1 [2] and EN 12501-2 [3].

Cathodic protection of structures immersed in seawater or brackish waters is covered by EN 12473 and a series of standards more specific for various applications.

Cathodic protection for reinforced concrete structures is covered by EN ISO 12696.

This document is applicable in conjunction with:

- EN ISO 15589-1 for application for buried or immersed cathodically protected pipelines,

- EN 50162 to manage d.c. stray currents,

- EN ISO 18086 to manage corrosion due to a.c. interference from high voltage power sources and a.c. traction systems,

- EN 13509 for cathodic protection measurement techniques

- EN 50443 to manage protection for touch and step voltage.

Document History

EN 12954
August 1, 2019
General principles of cathodic protection of buried or immersed onshore metallic structures
This document describes the general principles for the implementation and management of a system of cathodic protection against corrosive attacks on structures which are buried or in contact with...
January 1, 2001
Cathodic Protection of Buried or Immersed Metallic Structures - General Principles and Application for Pipelines
A description is not available for this item.

References

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