US 9,812,232 B2
Electric wire and cable
Tamotsu Kibe, Hitachi (JP); Hisao Furuichi, Hitachi (JP); Hiroshi Okikawa, Hitachi (JP); and Ryutaro Kikuchi, Mito (JP)
Assigned to HITACHI METALS, LTD., Tokyo (JP)
Filed by Hitachi Metals, Ltd., Tokyo (JP)
Filed on Nov. 6, 2015, as Appl. No. 14/934,807.
Claims priority of application No. 2014-231104 (JP), filed on Nov. 13, 2014.
Prior Publication US 2016/0141077 A1, May 19, 2016
Int. Cl. H01B 7/00 (2006.01); H01B 7/295 (2006.01); H01B 3/44 (2006.01); H01B 1/02 (2006.01); H01B 7/04 (2006.01)
CPC H01B 7/295 (2013.01) [H01B 1/026 (2013.01); H01B 3/445 (2013.01); H01B 3/446 (2013.01); H01B 7/0009 (2013.01); H01B 7/04 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An electric wire, comprising:
a conductor having a cross-sectional area of not less than 180 mm2 and not more than 220 mm2;
an insulation provided so as to cover an outer periphery of the conductor, and
a wire sheath provided so as to cover an outer periphery of the insulation,
wherein the conductor comprises a parent twisted wire that is formed by twisting not less than 37 child twisted wires each formed by twisting not less than 34 strands having a diameter of not more than 0.46 mm,
wherein an amount of deflection is not less than 180 mm when, at 23° C., one end of the electric wire is fixed to a fixture table so that an other end of the electric wire horizontally protrudes 400 mm from the fixture table and a weight of 2 kg is attached to the other end, and cracks and breaks do not occur when wound with a bending diameter of three times a diameter at −40° C., and
wherein the insulation and the wire sheath comprise a resin composition comprising a base resin consisting of an ethylene-vinyl acetate copolymer and not less than 20 parts by weight and not more than 60 parts by weight of a chlorinated polyethylene with a chlorine content of not less than 30% and not more than 45%.