oSIST prEN 14919-1:2004

SLOVENSKI STANDARD
01-junij-2004
Petroleum and natural gas industries - Cathodic protection of pipeline
transportation systems - Part 1: On-land pipelines (ISO 15589-1:2003 modified)
Petroleum and natural gas industries - Cathodic protection of pipeline transportation
systems - Part 1: On-land pipelines (ISO 15589-1:2003 modified)
Erdöl- und Erdgasindustrie - Kathodischer Schutz für Transportleitungssysteme - Teil 1:
On-land pipelines (Land-Rohrleitungen)
Industries du pétrole et du gaz naturel - Protection cathodique des systemes de transport
par conduites - Partie 1 : Conduites terrestres (ISO 15589-1:2003 modifiée)
Ta slovenski standard je istoveten z: prEN 14919-1
ICS:
75.200 2SUHPD]DVNODGLãþHQMH Petroleum products and
QDIWHQDIWQLKSURL]YRGRYLQ natural gas handling
]HPHOMVNHJDSOLQD equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
FINAL DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2004
ICS 23.040.01; 75.200; 25.220.40
English version
Petroleum and natural gas industries - Cathodic protection of
pipeline transportation systems - Part 1: On-land pipelines (ISO
15589-1:2003 modified)
Industries du pétrole et du gaz naturel - Protection
cathodique des systèmes de transport par conduites -
Partie 1 : Conduites terrestres (ISO 15589-1:2003
modifiée)
This draft European Standard is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical
Committee CEN/TC 12.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 14919-1:2004: E
worldwide for CEN national Members.

Contents page
Explanatory Note. 4
Foreword. 5
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions. 7
4 Symbols and abbreviations . 9
5 Design requirements . 10
5.1 General. 10
5.2 Design information . 10
5.3 Criteria for CP. 11
5.4 Predesign investigations . 12
5.5 Electrical isolation . 13
5.6 Electrical earthing. 13
5.7 Electrical continuity. 14
5.8 Current requirements . 14
5.9 Type of CP system and selection of sites . 15
6 Impressed-current systems. 16
6.1 Power supply. 16
6.2 Groundbeds. 17
6.3 Current output control and distribution . 19
7 Galvanic-anode systems. 20
7.1 General. 20
7.2 Zinc anodes . 20
7.3 Magnesium anodes. 21
7.4 Anode backfill. 22
7.5 Cables and cable connections . 22
8 Monitoring facilities . 22
8.1 General. 22
8.2 Monitoring stations (test posts) . 22
8.3 Bonding to other pipelines . 23
8.4 Test facilities at cased crossings. 23
8.5 Test facilities at isolating joints. 23
8.6 Drain-point test facilities. 23
8.7 Miscellaneous monitoring facilities . 23
9 Special facilities . 23
9.1 Temporary protection. 23
9.2 Protective casings . 24
9.3 Parallel power lines or a.c. traction systems. 24
9.4 Lightning protection . 24
9.5 Surge arrestors . 24
9.6 CP cables and cable connections. 25
9.7 Monitoring stations and distribution boxes. 26
10 Commissioning . 26
10.1 General. 26
10.2 Equipment tests . 26
10.3 System tests.27
11 Inspection and monitoring .27
11.1 General.27
11.2 Frequencies of inspection .28
11.3 Monitoring plan.29
11.4 Monitoring equipment.29
11.5 Specialized surveys.29
12 Maintenance and repair.30
13 Documentation.30
13.1 Design documentation.30
13.2 Commissioning documentation.31
13.3 Inspection and monitoring documentation.32
13.4 Operating and maintenance documentation .32
13.5 Maintenance records.32
Annex A (normative) CP measurements .33
A.1 General.33
A.2 Potential measurements .33
A.3 Control of electrical isolation .35
Annex B (normative) Electrical interference .37
B.1 General.37
B.2 d.c. interference.37
B.3 a.c. interference .39
Annex C (informative) Fault detection of impressed-current systems during operation.41
Annex D (informative) Description of specialized surveys.43
D.1 Pearson survey.43
D.2 Current attenuation survey.43
D.3 Close-interval potential survey (CIPS) .43
D.4 Direct-current voltage gradient survey (DCVG) .44
D.5 Intensive measurement technique.44
Annex ZA (normative) Normative references to international publications with their
corresponding European publications.46
Bibliography.47
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