Power cable useful in seismic testing

Details Power cable useful in seismic testing Power cable useful in seismic testing

1987-08-19

1988-12-13

Nimmo, Morris H.

Electricity: conductors and insulators

Conduits, cables or conductors

Conductive armor or sheath

174105R, 174109, 174117F, 1741281, 174131R, H01B 722

Patent

active

047912464

ABSTRACT:
A self-supporting power cable which is especially useful in seismic testing. The cable includes an outer armor layer, a pair of tensile elements located inside the armor layer, a power conveying assembly located inside the armor layer and between the tensile elements, and filler material filling the otherwise empty spaces within the armor layer. The tensile elements are advantageously formed of several concentric layers of spirally-wrapped wire strands with at least the outer layer having less than a full contingent of strands. This improves the cable's strength-to-weight ratio while providing self support. To provide transverse force resistance against the cleats of a feeding device, the outer layer of the wire ropes contact the walls of the outer armor layer.

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