Year: 1980
Type: report
Abstract: The unique design and test requirements for the cable dielectrics selected for evaluation for use in Ocean Thermal Energy Conversion plants are described. Specifically, the methodology of developing the test procedure is defined. The basic cable dielectrics selected for evaluation include taped/oil-impregnated insulation, and extruded solid cross-linked polyethylene insulation. These cables are designed to transmit 100 MW at 138 kV, and will be subjected to installation and operating conditions that are unprecedented for any power cable system. These conditions include ocean depths of 4000 to 5000 feet, long vertical suspension, and the motions and forces imparted by the plant and ocean. The developmental test program is designed primarily to determine the weak link in the components of the candidate cable with regard to the ability to successfully withstand the unusual OTEC conditions over a 10 to 30 year lifetime. Two basic areas of concern are the mechanical fatigue of metallic sheaths and strength members, and the electrical/mechanical ''fatigue'' of the dielectric and shielding components. The constraints and problems in such testing are addressed, and the engineering solutions are described. Finally, the scheduled plan for completion of the entire development test plan is defined.
DOI: 10.2172/6765542
Authors: R. Traut, J. Kurt, F. DiPietro, K. Roberts
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
Funder: U.S. Department of Energy
OpenAlex ID: W112926745