Semi-conductive rubber shielded shuttle car cable

Patent metadata

Field	Value
Publication number	US-9959952-B2
Application number	US-201414547607-A
Country	US
Kind code	B2
Filing date	Nov 19, 2014
Priority date	Nov 19, 2014
Publication date	May 1, 2018
Grant date	May 1, 2018

Abstract

An electric cable is provided having a plurality of insulated power conductors, a pilot and ground wire assembly and a saddle positioned between the plurality of insulated power conductors with the pilot and ground assembly being positioned within the saddle, where the saddle is constructed from a semi-conductive polymer. An inner sheath surrounds the saddle and the plurality of insulated power conductors, where the inner sheath is constructed from a semi-conductive polymer and where the inner sheath, saddle and the plurality of conductors form a flat cable. An outer insulating sheath disposed around the outside of the inner sheath.

First claim

The invention claimed is:

1. An electric cable, said cable comprising:
a plurality of insulated power conductors;
a pilot and ground wire assembly;
a saddle positioned between said plurality of insulated power conductors with said pilot and ground assembly being positioned within said saddle, said saddle constructed from a semi-conductive polymer;
an inner sheath surrounding said saddle and said plurality of insulated power conductors, wherein said inner sheath is constructed from a semi-conductive polymer and wherein said inner sheath, saddle and said plurality of conductors form a flat cable; and
an outer insulating sheath disposed around the outside of said inner sheath,
wherein each of said plurality of insulated conductors is completely surrounded by semi-conductive polymer from the combination of said inner sheath and said saddle.

2. The cable as claimed in claim 1 , wherein said plurality of conductors are two insulated conductors that are constructed as a series of stranded tinned copper wires, surrounded by a semi-conductive polymer, which in turn is surrounded by an insulator polymer.

3. The cable as claimed in claim 1 , wherein said saddle is extruded semi-conductive polymer.

4. The cable as claimed in claim 3 , wherein said semi-conductive polymer forming said saddle is selected from the group consisting of black semi-conductive chloroprene rubber (CR) or semi-conductive chloro-sulfonated polyethylene (CSPE).

5. The cable as claimed in claim 4 , wherein said saddle includes carbon black to make said saddle semi-conductive.

6. The cable as claimed in claim 4 wherein said semi-conductive polymer forming said inner sheath surrounding said saddle is selected from the group consisting of black semi-conductive chloroprene rubber (CR) or semi-conductive chloro-sulfonated polyethylene (CSPE).

7. An electric cable, said cable comprising:
first, second and third insulated power conductors;
a pilot and ground wire assembly;
a first saddle positioned between said first and second insulated power conductors with said pilot and ground assembly being contained with said first saddle, said first saddle constructed from a semi-conductive polymer;
a second saddle positioned between said second and third insulated power conductors with additional ground wires contained therein, said second saddle constructed from a semi-conductive polymer;
an inner sheath surrounding said saddles and said insulated power conductors, wherein said inner sheath is constructed from a semi-conductive polymer and wherein said inner sheath, saddles and conductors form a flat cable; and
an outer insulating sheath disposed around the outside of said inner sheath,
wherein each of said plurality of insulated conductors is completely surrounded by semi-conductive polymer from the combination of said inner sheath and said saddles.

8. The cable as claimed in claim 1 , constructed as a central conductor composed of bundled tinned copper wires, surrounded by an insulation layer, in turn surrounded by a plurality of grounding wire stranded around said insulation layer.

Assignees

• Nexans

Inventors

• Fuller Mark

Classifications

• H01B1/02

  mainly consisting of metals or alloys · CPC title

• H01B7/1875

  Multi-layer sheaths · CPC title

• H01B7/041

  attached to mobile objects, e.g. portable tools, elevators, mining equipment, hoisting cables · CPC title

• H01B3/004

  with conductive additives or conductive layers · CPC title

• H01B3/28 Primary

  natural or synthetic rubbers · CPC title