High voltage cable

An H- cable, also Höchstädter cable is a special high-voltage cable with three conductors for three-phase alternating current. It was developed by Martin Höchstädter beginning of the 20th century. Applications for this cable are in the range of high voltage equipment for the purpose of electrical power distribution.

In this variant of three-core cables, each conductor has an additional metallized shielding on the insulation. This isolation has a radial and uniform orientation of the electric field is achieved. H - cord, a higher operating voltage can be achieved, since the insulation is subjected to less stress than the standard three -conductor cables of the low-voltage region without shielding.

Höchstädter cable, around 1930, with metallized paper on the outer shield