UNDERWATER DEGRADATION OF POLYETHYLENE FOR WIRE INSULATION
FURUKAWA ELECTRIC CO LTD YOKOHAMA (JAPAN) MATERIAL LAB
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Underwater degradation of polyethylene insulation is initiated with oxidation caused by oxygen dissolved in the water and then is propagated with the growth of cracks caused by water permeation. And to prevent degradation of polyethylene insulated wire, especially for underwater use, it is believed desirable to use a wire which consists of a tin-plated conductor and a coating of polyethylene, crosslinked if possible, containing optimum antioxidant and minimum internal stresses.
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