Importance

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Abstract

A power cable polymer joint includes a polymer protective layer including a cable insertion hole into which a stripped end of a power cable is inserted. The polymer protective layer includes an insulation including a polymer-based material, a semi-conductive portion including mainly a polymer-based material to relax an electric field at the end of the power cable, and a tubular member including a different material from the polymer-based material and extending on a rear-end side of the insulation and the semi-conductive portion. The insulation and the semi-conductive portion and the tubular member are integrally formed. The tubular member has an inner diameter more than an outer diameter of a non-stripped power cable.

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First Claim