Study stresses need to combine AC mitigation, CP
Study stresses need to combine AC mitigation, CP
- Neue Suche nach: Lindemuth, Dale
- Neue Suche nach: Creel, Jerry
- Neue Suche nach: Lindemuth, Dale
- Neue Suche nach: Creel, Jerry
Coordinating AC mitigation with cathodic protection and other aspects of pipeline design, construction, and operation is essential. Background is a high-pressure natural gas pipeline parallel and crossing overhead three-phase high voltage AC power transmission lines with phase-to-ground voltages in the range from 115 kV to 500 kV. An evaluation of anticipated AC effects on the pipeline without mitigation and a design strategy for a safe and reliable operation without excessive pipe potentials or unnecessary concern regarding AC-influenced corrosion was performed. Network simulations of a pipe-to-soil potential under steady-state and fault conditions, with and without mitigation were performed. Without effective mitigation, these potentials would present a clear thread to personnel safety and equipment reliability. One parallel mitigation conductor made of steel-cored zinc ribbon adjacent to the pipeline is often sufficient to reduce pipeline steady-state and fault potentials to less than the upper tolerable project limit.
Dokumentinformationen
Study stresses need to combine AC mitigation, CP
Untersuchung zeigt die Notwendigkeit zur Kombination von Wechselstromeinflussmilderung und kathodischem Korrosionsschutz
Oil and Gas Journal ; 108 , 22 ; 60-63
2010
4 Seiten, 5 Bilder, 1 Tabelle
Aufsatz (Zeitschrift)
Englisch
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