Hitachi Metals, Ltd.

Hitachi Cable, Inc.

Hitachi Magnet Wire Corp.

Akira Setogawa

Tomiya Abe

Yuji Takano

Makoto Iwasaki

Hideyuki Kikuchi

Ryutaro Kikuchi

Kenji Asano

Takahiko Hanada

An insulated wire includes a conductor, and an insulation layer covering an outer periphery of the conductor. The insulation layer includes a halogen-free flame-retardant resin composition including a base polymer, not less than 1 part by mass and not more than 10 parts by mass of an amorphous silica and not less than 10 parts by mass and not more than 150 parts by mass of a halogen-free flame retardant relative to 100 parts by mass of the base polymer. The base polymer includes not less than 50 parts by mass and not more than 90 parts by mass of either an ethylene-vinyl acetate copolymer or an ethylene-butene copolymer and not less than 10 parts by mass and not more than 50 parts by mass of a low-density polyethylene.

Insulated wire and cable using halogen-free flame-retardant resin composition

A semiconductive resin composition is composed of a base polymer including an ethylene-vinyl acetate copolymer with a vinyl acetate content of not lower than 60 percent by weight, two or more of fatty acid zinc, oleic acid bisamide and trimellitic acid ester, a peroxide-based crosslinking agent having a one hour half-life temperature of not lower than 130 degrees C., and a carbon having a DBP (dibutyl phthalate) adsorption capacity of not larger than 150 mg/g.

Semiconductive resin composition and power transmission cable using same

There is provided a insulated electric wire with an electric conductor on which at least a lubricating layer is formed, in which a lubricant is added to the lubricating layer so that granular bodies, with sizes of 5 nm to 3 &#x3bc;m, which are formed by coagulation of the lubricant disperse on a surface of the lubricating layer.

Insulated electric wire

An insulated electric wire is composed of a conductor, and a lubricating layer containing a lubricant. The lubricating layer is formed around the perimeter of the conductor. The lubricating layer is not less than 0.06 and not more than 0.12 in an absorbance ratio A/Aexpressed by an absorbance Aof carbon-hydrogen stretching vibration and an absorbance Aof benzene ring framework vibration, obtained by Fourier Transform Infrared Spectroscopy analysis of a surface of the lubricating layer.

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Hitachi, Japan

Akira Setogawa