Abstract: A metal cable includes at least one center conductor, an internal insulator provided around the center conductor, a tape enclosure formed by a tape having an aluminum foil layer and a plastic layer laminated thereon, and an external insulating coating provided on the outer circumference of the tape enclosure. The width of the tape of the tape enclosure is wider than those of hitherto used tapes and larger than the length of the outer circumference of the internal insulator.