NDLI: Preliminary Evaluation of the Hawaii Deep Water Power Cable for Potential of Failure Due to Erosion-Corrosion

Content Provider	IEEE Xplore Digital Library
Author	Larsen-Basse, J.
Copyright Year	1987
Description	Author affiliation: Georgia Institute of Technology, Atlanta, GA, USA (Larsen-Basse, J.)
Abstract	A deep sea power cable linking the geothermal fields on the Big Island of Hawaii with the main population center in Honolulu on the island of Oahu is being designed. It will be about 250 km long and deployed at depths of up to 2200 m. These requirements demand significant extensions of current power cable technology. In this paper the potential of premature failure (in less than 30 years) due to the combined actions of erosion and corrosion is assessed. The abrasive or erosive processes become potential problems because much of the ocean bottom over the proposed cable route is covered with abrasive volcanic rocks of geologically recent origin; and because the tidal currents through the deepest channel on the route exert very significant forces on the cable. Laboratory data on abrasion of armor wire and polymeric serving materials by pillow basalt are combined with test data on corrosion of steel in deep ocean seawater to arrive at a series of worst-case estimates for the potential life reduction due to erosion-corrosion. It is shown that failure by this mechanism is a distinct possibility unless proper precautions are taken.
Starting Page	445
Ending Page	448
File Size	316814
Page Count	4
File Format	PDF
DOI	10.1109/OCEANS.1987.1160795
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1987-09-28
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Oil filled cables Steel Testing Cable shielding Slurries Abrasives Polymers Yarn Wires Fatigue
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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