A waterproof structure of a wire harness includes at least one bundle of an electric wire group in which a plurality of electric wires are linearly arranged, a damming part made of a hard resin material, the damming part which surrounds a part of the electric wire group in an extension direction of the electric wire group and which includes an outer periphery shape part according to a shape of a trapezoidal through hole in an electric wire group insertion part with a divided structure, and a water stop material which prevents water from entering a gap between the electric wire group insertion part and the outer periphery shape part and which is formed on an inner peripheral surface of the through hole.

A technique facilitates construction and operation of a power cable which may be used to supply power to an electric submersible pumping system downhole into a wellbore. The power cable comprises at least one electrical conductor. Each electrical conductor is insulated with an insulation layer and protected from deleterious fluids by a fluid barrier layer. Further protection is provided by a protective layer disposed around the fluid barrier layer. The protective layer is foamed to provide a cushion layer and to further protect components of the power cable. An armor layer may be disposed around the protective layer.

A technique facilitates construction and operation of a power cable which may be used to supply power to an electric submersible pumping system downhole into a wellbore. The power cable comprises at least one electrical conductor. Each electrical conductor is insulated with an insulation layer and protected from deleterious fluids by a fluid barrier layer. Further protection is provided by a protective layer disposed around the fluid barrier layer. The protective layer is foamed to provide a cushion layer and to further protect components of the power cable. An armor layer may be disposed around the protective layer.

A technique facilitates construction and operation of a power cable which may be used to deploy an electric submersible pumping system downhole into a wellbore. The power cable is constructed to provide structural support of the electric submersible pumping system while also providing electric power to the electric submersible pumping system when located downhole in the wellbore. The power cable comprises at least one conductor and a plurality of layers selected and arranged to ensure long-term support and delivery of electrical power in the relatively harsh downhole environment.

A technique facilitates construction and operation of a power cable which may be used to deploy an electric submersible pumping system downhole into a wellbore. The power cable is constructed to provide structural support of the electric submersible pumping system while also providing electric power to the electric submersible pumping system when located downhole in the wellbore. The power cable comprises at least one conductor and a plurality of layers selected and arranged to ensure long-term support and delivery of electrical power in the relatively harsh downhole environment.

Embodiments relate to conductive textiles and methods of their production, as well as systems for electronically connecting devices through conductive textiles. An example textile comprises a first electrically conductive track; a second electrically conductive track; and at least one non-conductive portion. At least a portion of the first electrically conductive track overlaps or is in close proximity to at least a portion of the second electrically conductive track. At least said portions of the respective tracks are separated by an insulating material so that there is no electrical coupling between the first and second tracks.

Embodiments relate to conductive textiles and methods of their production, as well as systems for electronically connecting devices through conductive textiles. An example textile comprises a first electrically conductive track; a second electrically conductive track; and at least one non-conductive portion. At least a portion of the first electrically conductive track overlaps or is in close proximity to at least a portion of the second electrically conductive track. At least said portions of the respective tracks are separated by an insulating material so that there is no electrical coupling between the first and second tracks.

An insulated wire includes a conductor, and a flame-retardant insulation layer that includes a resin composition including a flame retardant and is arranged around the conductor, and a water-blocking layer that is arranged around the flame-retardant insulation layer and has a water absorption of not more than 0.5% at saturation. The thickness of the water-blocking layer is not less than 25 μm.

An insulated wire includes a conductor, and a flame-retardant insulation layer that includes a resin composition including a flame retardant and is arranged around the conductor, and a water-blocking layer that is arranged around the flame-retardant insulation layer and has a water absorption of not more than 0.5% at saturation. The thickness of the water-blocking layer is not less than 25 μm.

An insulated wire includes a conductor, a flame-retardant inner layer that is provided around the conductor and includes a metal hydroxide, and a water ingress prevention layer provided around the flame-retardant inner layer. The insulated wire may further include a flame-retardant outer layer provided around the water ingress prevention layer.