Swcc Showa Cable Systems Co., Ltd.

Hitoshi Shintate

Nobuyuki Sema

Kazuhisa Adachi

Miyuki Ogishima

Junichi Shinagawa

A polymer bushing includes a conductor bar, a conductor insertion hole at a lower end, a rigid insulator around the outer circumference of the conductor bar and having a receiving port for a cable termination, a polymer covering around the outer circumference of the insulator and a number of shadesformed separately along the longer dimension at the outer circumference. A large diameter part is provided above the conductor insertion hole which is in the vicinity of the lower end part of the insulator. A cylindrical shielding metal fitting is concentrically embedded together with the conductor bar in the large diameter part. An electric-field stress-control layer is provided at the interface between the large diameter part and the polymer covering.

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Tokyo, Japan

Hitoshi Shintate