Sumitomo Electric Industries, Limited

Takami Sagisaka

Takaya Kohori

Yuji Ochi

Satoshi Hashimoto

Masayuki Ishikawa

Yuhei Mayama

An insulated electric cable including: two first core wires, each of the two first core wires including: a first conductor; and a first insulating layer covering the first conductor; and two second core wires, each of the two second core wires including: a second conductor having a cross-sectional area smaller than that of the first conductor; and a second insulating layer covering the second conductor; wherein the two second core wires are mutually stranded to form a subunit, and wherein one of the two first core wires, another of the two first core wires, and the subunit are mutually stranded and are in contact with each other to form a core member.

Insulated electric cable

An insulated electric cablehas a core member I formed by stranding a plurality of core wires, each of the core wiresincluding a conductorand an insulating layercovering the conductor, an inner sheathcovering the core member I, an outer sheathcovering the inner sheath, and a paper tapedisposed between the core member I and the inner sheathin a state that it is wrapped around the core member I, in which the outer sheathis formed by a flame-retardant polyurethane resin, and a cross-sectional area of each of conductorsis within 0.18-3.0 mm2.

An insulated electric cablehas a core memberformed by stranding a plurality of core wires, each of the core wiresincluding a conductorand an insulating layercovering the conductor, an inner sheathcovering the core member, an outer sheathcovering the inner sheath, and a paper tapedisposed between the core memberand the inner sheathin a state that it is wrapped around the core member, in which the outer sheathis formed by a flame-retardant polyurethane resin, and a cross-sectional area of each of conductorsis within 0.18-3.0 mm.

An object of the invention is to provide a cable capable of matching exposed dimensions of conductors with a predetermined dimension to perform good processing at the time of distal end processing. In a cable () in which a pair of insulated wires () each of which is formed by covering a conductor () with an insulator () is mutually stranded and a periphery of these stranded insulated wires () is covered with a sheath () made of an inner sheath () and an outer sheath (), the conductor () is formed by assembling a plurality of stranded wires () each of which is formed by wholly stranding a plurality of wires (), and by further wholly stranding the stranded wires ().

Growing community of inventors

Kanuma, Japan

Takami Sagisaka