Coaxial cable for high amperages

Claim 1

A liquid-cooled coaxial cable for pulsating high amperage currents, comprising a flexible, electrically insulating, water-impermeable outer casing; two groups of electrical conductors located in said casing, of which a first group of conductors is arranged as a bundle lying centrally in the casing and conducts current of a first polarity, and a second group of conductors is arranged in a ring surrounding the central bundle and conducts current of the opposite polarity; spacer means for maintaining radial distance between the two groups of conductors; there being longitudinal coolant channels for cooling the conductors formed by the interspaces between the conductors, the spacer means and the outer casing; said spacer means comprising a compressible, water-permeable body of textile material, which has an annular cross section; the central opening area within the textile spacer being substantially greater than the total area of the conductors of the first group; the conductors of the first group being arranged loosely and substantially parallel to each other without being attached to each other so as to be freely radially movable within the central spacer body opening; and the annular spacer body having at its outer circumference means for circumferentially separating the conductors of the second group from each other.