Document Responsibility: Cathodic Protection Standards Committee SAES-X-400
Issue Date: 13 December 2011
Next Planned Update: 13 December 2016 Cathodic Protection of Buried Pipelines
Detailed Index of Contents
1 Scope ............................................................................................................................. 3
2 Conflicts and Deviations ................................................................................................. 3
3 References..................................................................................................................... 3
3.1 Saudi Aramco References ..................................................................................... 3
3.2 Industry Codes and Standards .............................................................................. 6
4 Definitions and Abbreviations ......................................................................................... 6
5 Design Review and Approval ......................................................................................... 9
6 General Design Requirements ..................................................................................... 11
6.1 Contractor/Designer Qualifications and Equipment Requirements ....................... 11
6.2 Fundamental Design Calculations ....................................................................... 11
6.3 Field Data ............................................................................................................ 13
6.4 Production Pipelines - Special Considerations ..................................................... 15
6.5 Impressed Current Cathodic Protection ............................................................... 15
6.6 Galvanic Cathodic Protection............................................................................... 15
6.7 Temporary Cathodic Protection ........................................................................... 17
6.8 Using Existing Cathodic Protection Capacity for New Pipelines ........................... 18
6.9 Electrical Isolation................................................................................................ 19
6.10 Bonding ............................................................................................................... 20
6.11 Monitoring............................................................................................................ 22
6.12 Induced AC Voltages ........................................................................................... 23
7 CP System Performance Criteria.................................................................................. 24
7.1 Cathodic Protection Criteria ................................................................................. 24
7.2 Anode Bed Design Life ........................................................................................ 25
7.3 Anode Bed Current Capacity and Consumption Rates ........................................ 25
7.4 Circuit Resistance Criteria ................................................................................... 26
8 CP System Equipment and Material Requirements ...................................................... 28
8.1 Anode/Anode Bed General Requirements ........................................................... 29
8.2 DC Power Supply ................................................................................................ 30
8.3 DC Cables ........................................................................................................... 30
8.4 Junction and Bond Boxes .................................................................................... 31
8.5 Pipeline CP Assessment Probes ......................................................................... 31
9 Installation, Records, Commissioning and Inspection ................................................... 33
Appendix 1 Quality Assurance Check List for Pipeline CP System Designs .................... 34
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