To enable a cable which has a greater capacity to be provided in a tube path of limited size by thinning a thickness of a radius part in a protection sheath more significantly than a thickness of an arc part.
An insulator 2 having its specified insulation thickness is provided on the outer circumference of a conductor 1 of a copper stranded wire compressed and molded so that a traverse sectional view thereof is fan-shaped, and further a protection sheath 3 is provided on the outer circumference thereof. The protection sheath 3 is formed so that the thickness relationship of both are T1<T2 when the thickness of a radius part 31 thereof is T1 and the thickness of the arc part 32 is T2. A traverse sectional fan-shaped power cable is stranded so that the entire traverse sectional, outer circumference shape of plural cables is a circle of D in diameter. At this time, an arc part 32 is exposed as an outer circumference face, and the radius part 31 is not exposed to the outside. Consequently, the thickness T2 of the arc part 32 is formed with a thickness sufficient to protect the insulator 2, and the thickness T1 of the radius part 31 can be formed as thin as possible.
WATANABE KAZUO
YAMANOUCHI HIROSHI
