Hawaii Deep Water Cable Program, phase II-B, task 3 : cable materials corrosion and abrasion testing

Larsen-Basse, Jorn
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Hawaii Natural Energy Labratory
This report presents data on the resistance of some typical power cable materials and common reference materials to deterioration in the marine environment as it exists in the general region of the proposed route of the Hawaii Deep water Cable (HDWC). The work was divided into four tasks: (1) long-term corrosion tests in Hawaiian surface and deep ocean seawater, (2) crevice corrosion testing of stainless steels in these waters, (3) abrasion testing against slurries of Hawaiian marine rock fragments, and (4) corrosion-fatigue testing of lead in seawater and other environments. The work was performed in the Marine Materials Laboratory on the campus of the University of Hawaii in Honolulu and at the Natural Energy Laboratory of Hawaii (NELH) on the island of Hawaii. All corrosion tests and all other tests in flowing seawater were conducted at NELH where two seawater systems are available side by side. One system pumps clean off-shore surface seawater to the laboratory. The water temperature ranges between 25 and 28°C over the year and the water is typical of open ocean tropical seawater. The other system brings in seawater from a depth of about 600 m (2,000 feet). This water has a temperature of 7-10°C and has lower pH and oxygen content than the warm water. It is typical of OTEC-type condenser cooling water.
Hawaii Deep Water Cable Program, demonstration, engineering, Hawaii
Larsen-Basse J. 1986. Hawaii Deep Water Cable Program, phase II-B, task 3: cable materials corrosion and abrasion testing. (HI): Hawaii Natural Energy Labratory.
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