Isolated Phase Pipe-Type Cable in Aluminum-Fiberglass Pipe

The hysteresis losses inherent in the conventional high voltage pipe-type cable system can be avoided by the use of non-magnetic pipe. A new system is proposed consisting of single-phase cables in filament-wound epoxybonded fiberglass covered aluminum pipes. Investigation indicates the proposed system to be practicable, economically sound, and to offer a reasonable and feasible method of increasing the load capability of pipe-type cables.