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CEN

EN 12474:2001

(Main)

Cathodic protection of submarine pipelines

Cathodic protection of submarine pipelines

This European Standard establishes the general criteria and recommendations for the design, installation, monitoring and commissioning of the cathodic protection systems for submarine pipelines.
This standard is applicable to all grades of carbon manganese steel and to stainless steel pipelines; it covers all types of sea water and seabed environments encountered in submerged conditions.
The cathodic protection of short lengths of submarine pipelines and their branches, which are directly connected to cathodically protected onshore pipelines, are outside of the scope of this standard (see EN 12954:2001).
The cathodic protection of risers is included in this standard only if they are insulated from the supporting structure. The cathodic protection of the risers in direct electrical contact with the supporting structure is included in EN 12495.

Kathodischer Korrosionsschutz für unterseeische Rohrleitungen

Anwendungsbereich
Diese Europäische Norm stellt allgemeine Kriterien und Empfehlungen für die Auslegung, Installation,
Überwachung und Inbetriebnahme kathodischer Korrosionsschutzsysteme für unterseeische Rohr-leitungen
auf.
Diese Norm gilt für Rohrleitungen aus Kohlenstoff-Mangan-Stahl aller Güteklassen und aus nicht
rostendem Stahl. Sie behandelt sämtliche Arten von Meerwasser- und Meeresgrundumgebungen, die
unter Wasser anzutreffen sind.
Diese Norm gilt nicht für kurze Abschnitte unterseeischer Rohrleitungen oder ihrer Abzweigungen, die
mit kathodisch geschützten Festlandsrohrleitungen leitend verbunden sind (siehe EN 12954:2001).
Der kathodische Korrosionsschutz von Steigleitungen ist in dieser Norm nur dann einbezogen, wenn
sie von ihren Trägerstrukturen isoliert sind. Der kathodische Korrosionsschutz von Steigleitungen, die in
direkter elektrischer Verbindung mit ihren Trägerstrukturen stehen, ist in der EN 12495 enthalten.

Protection cathodique des canalisations sous-marines

La présente Norme européenne définit les critères et les recommandations d'ordre général relatifs à l'étude, à l'installation, au contrôle et à la mise en service des systèmes de protection cathodique des canalisations sous-marines.
La présente norme est applicable à des canalisations en acier au carbone manganèse et en acier inoxydable de toutes nuances ; elle couvre tous les types d'eau de mer et de fonds marins susceptibles d'être rencontrés dans les conditions d'immersion.
La protection cathodique de courtes longueurs de canalisations sous-marines et de leurs ramifications qui sont directement connectées à des canalisations terrestres protégées par un système de protection cathodique, ne fait pas partie du domaine d'application de la présente norme (voir EN 12954:2001).
La protection cathodique des colonnes montantes (risers) est couverte par la présente norme uniquement si ces dernières) sont isolées de la structure porteuse. La protection cathodique des colonnes montantes (risers) en contact électrique direct avec la structure porteuse est couverte par l'EN 12495.

Katodna zaščita podmorskih cevovodov

General Information

Status
Withdrawn
Publication Date
24-Apr-2001
Withdrawal Date
29-Aug-2017
ICS
23.040.99 - Other pipeline components
77.060 - Corrosion of metals
Technical Committee
CEN/TC 219 - Cathodic protection (provisional)
Drafting Committee
CEN/TC 219/WG 3 - Cathodic protection of steel structures in sea-water
Current Stage
9960 - Withdrawal effective - Withdrawal
Completion Date
30-Aug-2017
Ref Project
SIST EN 12474:2003 - Cathodic protection of submarine pipelines

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SLOVENSKI STANDARD
SIST EN 12474:2003
01-december-2003
.DWRGQD]DãþLWDSRGPRUVNLKFHYRYRGRY
Cathodic protection of submarine pipelines
Kathodischer Korrosionsschutz für unterseeische Rohrleitungen
Protection cathodique des canalisations sous-marines
Ta slovenski standard je istoveten z: EN 12474:2001
ICS:
25.220.40 Kovinske prevleke Metallic coatings
47.020.30 Sistemi cevi Piping systems
SIST EN 12474:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN 12474:2003

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SIST EN 12474:2003
EUROPEAN STANDARD
EN 12474
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2001
ICS 23.040.99; 77.060
English version
Cathodic protection of submarine pipelines
Protection cathodique des canalisations sous marines Katodischer Korrosionsschutz für unterseeische
Rohrleitungen
This European Standard was approved by CEN on 7 March 2001.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12474:2001 E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------

SIST EN 12474:2003
Page 2
EN 12474:2001
Contents
Foreword.3
Introduction .4
1 Scope.4
2 Normative references.4
3 Terms and definitions.4
4 Criteria and principles for cathodic protection design .5
5 Design of sacrificial anodes system .8
6 Installation of sacrificial anodes.10
7 Design of impressed current systems.11
8 Installation of impressed current systems.12
9 Commissioning of cathodic protection systems.13
10 Control of interference currents .14
11 Monitoring and surveying of cathodic protection system.16
12 Safety.17
13 Documentation .18
Annex A (informative) Guidance on current requirements for cathodic protection of pipeline and risers .19
Annex B (informative) Anode sizing calculations.21
Annex C (informative) Attenuation curves.22
Annex D (informative) Safety precautions for impressed current system .
...

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