CEN/TS 15280:2006
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Evaluation of a.c. corrosion likelihood of buried pipelines - Application to cathodically protected pipelines
07-03-2023
15-03-2006
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 A.C. interference sources
5 Simplified description of a.c. corrosion process
6 Evaluation of a.c. corrosion likelihood
6.1 Prerequisite
6.2 General
6.3 Installation/use of coupons
6.4 Influence of a.c. voltage on the structure
6.5 Off potential influence
6.6 Influence of a.c. current density
6.7 Influence of the on potential toward a.c. corrosion
likelihood
6.8 Influence of current ratio "I[a.c.]/I[d.c.]"
6.9 Influence of soil characteristics on a.c. corrosion
likelihood
6.10 Assessment of the a.c. corrosion likelihood of the
pipeline by using corrosion coupons
7 Design consideration
7.1 General
7.2 New interference cases (pipelines/power lines/traction
systems in the design phase) - Condition for calculation
8 Interpretation of data, limits and relevant aspects
9 Mitigation measures
10 Monitoring
Annex A (informative) Assessment of the corrosion condition by
using the electric resistance technique
Annex B (informative) Coulometric oxidation of corrosion products
formed by a.c. corrosion
Bibliography
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