Design factors for cathodic protection
Journal Article
·
· Pipe Line Ind.; (United States)
OSTI ID:6830348
Pipeline Engineering GmbH, West Germany, outlines the engineering requirements for applying cathodic protection to new or existing pipelines: 1) the conductivity of the protected segment must be uninterrupted; 2) underground installations must not contact low-impedance grounding; and 3) pipe must incorporate a coating with a material of sufficient electrical resistance. For pipeline segments running parallel with high-voltage power lines, corrosion-protection and operating-station equipment must be able to accommodate voltage surges. Although cathodic protection supplied by impressed current or galvanic anodes is equally efficient in either case, suitability for a particular application depends onthe protective-current requirement, degree of interference with existing rights-of-way, and economics of installation and operation. Both systems require regular inspection and repair to maintain an acceptable level of performance.
- OSTI ID:
- 6830348
- Journal Information:
- Pipe Line Ind.; (United States), Journal Name: Pipe Line Ind.; (United States) Vol. 48; ISSN PLINA
- Country of Publication:
- United States
- Language:
- English
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