Belden Technologies, Inc.

B.n. Custom Cables Canada Inc.

Gilles Gagnon

A dual layer shielded electrical cable is disclosed. The cable has at least a pair of insulated conductors, a metallic shield and a jacket surrounding the shield and insulated conductors. A first jacket layer made of flame retardant material surrounds the insulated conductors. A metallic shield then surrounds the first jacket layer. A second jacket layer then surrounds and seals the metallic shield against the first jacket layer, such that the insertion of the first jacket layer provides the cable with electrical signal attenuation and impedance characteristics equivalent to that of an unshielded cable with similar conductor insulation thicknesses. In another embodiment, a dual layer plenum rated electrical cable is disclosed. The cable has at least a pair of insulated conductors and a jacket surrounding the insulated conductors. Both the first and second jacket layer are made of a low-smoke and flame-retardant materials.

Cable with dual layer jacket

A data communication cable for transmitting high frequency signals which includes at least one pair of conductors wherein each conductor is enclosed by a first inner layer of insulation and a second outer layer of insulation, and wherein the insulated conductors are enclosed by a jacket. The first inner layer of insulation is a polyolefin which may include a flame retardant and is in the form of an extruded expanded foam. The second or outer layer of insulation is a fluoropolymer and the jacket is a flame retardant and low-smoke PVC composition.

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Ville Lorraine, Canada

Gilles Gagnon