Sumitomo Electric Industries, Limited

Kazuto Keta

Hiroshi Hayami

Kiyoaki Moriuchi

Satoshi Shukushima

Takeshi Wakamiya

Jingjing Gu

The present invention relates to an electric wire having a conductor and a covering layer covering the conductor. The electric wire is inserted under pressure between two contact portions of a terminal of an insulation displacement connector to electrically connect to the terminal. In the present invention, the covering layer is made of a covering material obtained by irradiating with ionizing radiation a resin composition containing an ethylene copolymer and a metal hydroxide surface-treated with a predetermined silane compound. The 100% tensile modulus of the covering material is 7.8 MPa or more. The 100% tensile modulus and elongation satisfy E >270&minus;8.5&times;10 &times;Y (where E is the elongation and Y is the 100% tensile modulus). In this case, removal of the electric wire once mounted in the insulation displacement connector can be prevented, and exposure of the conductor in the electric wire in inserting the electric wire under pressure between two contact portions of the terminal of the insulation displacement connector can be sufficiently prevented.

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Kanuma, Japan

Kazuto Keta