A method of removing a foil shield from a cable includes positioning the cable proximate a heating source, monitoring a characteristic of the cable or the heating source with at least one sensor, heating the foil shield in a designated area to weaken the foil shield, and removing an outer insulation of the cable and the foil shield.

An electric cable has at least one elongated electrical conductor (1), at least one electrically insulating layer (2) surrounding the elongated electrical conductor (1), and at least one metal layer (3) surrounding electrically insulating layer (2). The metal layer (3) has metal nanowires.

A method for manufacturing a terminal-equipped electric wire includes a step of crimping a first terminal to one end of an electric wire, a step of crimping a second terminal to the other end of the electric wire with a tubular seal member, a first waterproofing step of providing, at the one end of the electric wire, an anticorrosion member that covers an element wire bundle of the electric wire, and a second waterproofing step of providing, at the other end of the electric wire, a sealing member so as to fill gaps between conductive element wires of the element wire bundle in a tubular insulating sheath. The second waterproofing step is performed after the first waterproofing step is performed.

A method for manufacturing a terminal-equipped electric wire includes a step of crimping a terminal to one end of an electric wire, a step of crimping another terminal to the other end of the electric wire, and a waterproofing step of providing a sealing member at the other end of the electric wire so as to fill gaps between conductive element wires of an element wire bundle. The waterproofing step includes, in this order, a step of applying a resin to the element wire bundle to block at least a part of an inner portion of a tubular insulating sheath, a step of waiting during curing of the resin or until the curing is completed, and a step of applying the moisture curable resin to the element wire bundle, blocking a remaining portion of the inner portion of the insulating sheath, and curing the resin.

A method for heat treatment of an electric power cable, the electric power cable including a polymer-based electrical insulation system with a polymer composition. The method steps include placing the electric power cable having the polymer-based electrical insulation system into a heating chamber and exposing the polymer-based electrical insulation system to a heat treatment procedure when the electric power cable is located in the heating chamber. The step of placing the electric power cable into the heating chamber includes winding the electric power cable about a substantially vertical center axis to form a substantially horizontal first layer of a plurality of substantially horizontal turns of the electric power cable, winding the electric power cable about the center axis to form a plurality of substantially horizontal second layers, each second layer being formed by a plurality of substantially horizontal turns of the electric power cable and stacking the plurality of horizontal second layers above the first layer. An apparatus is provided for performing the method.

A method of removing a foil shield from a cable includes positioning the cable proximate a heating source, monitoring a characteristic of the cable or the heating source with at least one sensor, heating the foil shield in a designated area to weaken the foil shield, and removing an outer insulation of the cable and the foil shield.

An electromagnetic wave shielding film includes a substrate; and an electromagnetic wave shielding layer disposed on the substrate and including a laminated structure having a planar shape and including a stack of metal nanoplates, wherein each metal nanoplate of the stack of metal nanoplates is staggered with respect to one or more other metal nanoplate of the stack of metal nanoplates so that the laminated structure has pores defined therein and between laminated structures in a stack of laminates structures. An additional embodiment of an electromagnetic wave shielding film includes an electromagnetic wave shielding layer including a composite of a polymer resin matrix composed of a polymer and at least one metal nanoplate, wherein each metal nanoplate of the at least one metal nanoplate is staggered with respect to one or more other metal nanoplate of the at least one metal nanoplate so that the composite has pores defined therein.

An electric cable for powering a downhole tool in a wellbore. The electric cable includes a core including one or more electrically conductive wires and one or more electric insulating layers surrounding the conductive wires; a metal inner tube surrounding the core, where the metal inner tubing and the core includes one or more undulated segments with one or more curved outer extensions projecting outwards from a longitudinal axis of the electric cable; and an outer encapsulating tube surrounding the core and metal inner tube, where the outer surface of the metal inner tube has outermost portions at the curved outer extensions of the undulated segments that touch an inner surface of the outer encapsulating tube. A well system including the electric cable and a method of assembling the electric cable are also disclosed.

A coaxial cable system includes an electric conductor to conduct electric power in a gas turbine engine. The system also includes a dielectric tape helically wound to contiguously surround the electric conductor and a flexible conduit disposed to surround and contiguously contact the dielectric tape. A dielectric liquid may be impregnated within the dielectric tape, and a flexible protective cover may concentrically disposed to surround the flexible conduit.

Provided is a method for manufacturing an electromagnetic interference shielding film comprising an electromagnetic interference shielding layer, the method comprising the steps of: preparing a metal nanoplate solution comprising a solvent in which metal nanoplates are dispersed; and coating the metal nanoplate solution on a substrate.