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.

The present invention relates to an electrical device (1, 20, 30) comprising a cross-linked layer (3, 4, 5) obtained on the basis of a cross-linkable polymer composition comprising a polymer material and particles with polyhedric structure, characterized in that the particles have a melting point of at most 200° C.

The present disclosure relates to insulation systems. Embodiments thereof may include a formulation for an insulation system used as casting resin and/or pressing resin as conductor and/or wall insulation for current-carrying conductors in generators, motors, and/or rotating machines. Some embodiments may include a material for use in an insulation system including: a base resin having one or more isotropic spherical filler fractions; wherein one of the one or more filler fractions comprises nanofiller particles comprising inorganic-organic particles; wherein both an inorganic fraction and an organic fraction are always simultaneously present; and the nanofiller particles comprise up to 25% by weight in the material.

The present disclosure relates to insulation systems. Embodiments thereof may include a formulation for an insulation system used as casting resin and/or pressing resin as conductor and/or wall insulation for current-carrying conductors in generators, motors, and/or rotating machines. Some embodiments may include a material for use in an insulation system including: a base resin having one or more isotropic spherical filler fractions; wherein one of the one or more filler fractions comprises nanofiller particles comprising inorganic-organic particles; wherein both an inorganic fraction and an organic fraction are always simultaneously present; and the nanofiller particles comprise up to 25% by weight in the material.

Systems and methods presented herein provide for elastomeric and flexible cables. One cable includes a first insulator extruded as a tube. The cable also includes an elastomeric conductor comprising conductive particles embedded in a polymer. The elastomeric conductor is extruded with the elastomeric insulator through a conduit of the tube. Other cables include flexible wires extruded with elastomeric tubes. In some embodiments, the cables are configured with stay cords that limit a length of stretching in the cable.

Systems and methods presented herein provide for elastomeric and flexible cables. One cable includes a first insulator extruded as a tube. The cable also includes an elastomeric conductor comprising conductive particles embedded in a polymer. The elastomeric conductor is extruded with the elastomeric insulator through a conduit of the tube. Other cables include flexible wires extruded with elastomeric tubes. In some embodiments, the cables are configured with stay cords that limit a length of stretching in the cable.

The present invention generally relates to deformable polymer composites, and more particularly to, deformable polymer composites with controlled electrical performance during deformation through tailored strain-dependent conductive filler contact. According to embodiments, a deformable elastomeric conductive material includes: an elastomeric polymer matrix; and conductive filler material uniformly dispersed in the elastomeric polymer matrix sufficient to render the material electrically or thermally conductive. The conductive filler material comprises a plurality of substantially non-entangled particles having an aspect ratio sufficiently large to enable the particles to substantially remain in contact and/or in close proximity with adjacent particles so as to maintain conductive pathways in the material when the material is subjected to deformation up to and exceeding 10% strain.

The present invention generally relates to deformable polymer composites, and more particularly to, deformable polymer composites with controlled electrical performance during deformation through tailored strain-dependent conductive filler contact. According to embodiments, a deformable elastomeric conductive material includes: an elastomeric polymer matrix; and conductive filler material uniformly dispersed in the elastomeric polymer matrix sufficient to render the material electrically or thermally conductive. The conductive filler material comprises a plurality of substantially non-entangled particles having an aspect ratio sufficiently large to enable the particles to substantially remain in contact and/or in close proximity with adjacent particles so as to maintain conductive pathways in the material when the material is subjected to deformation up to and exceeding 10% strain.

The present invention provides a millable silicone rubber composition characterized by comprising: (A) two raw alkenylated organopolysiloxane rubbers (A-1) and (A-2), i.e., a raw organopolysiloxane rubber including a molecular chain which is represented by a specific empirical formula and in which each of both terminals has been blocked with a trialkenylsiloxy group and a raw organopolysiloxane rubber including a molecular chain which is represented by a specific empirical formula and in which each of both terminals has been blocked with a monoalkenyldialkylsiloxy group; (B) an organohydrogenpolysiloxane having at least two silicon-atom-bonded hydrogen atoms in the molecule; (C) carbon black having an average primary-particle diameter of 100-350 nm; (D) reinforcing fumed silica having a specific surface area, as determined by the BET adsorption method, of 50 m.sup.2/g or greater; and (E) a platinum-group metal catalyst. This millable silicone rubber composition has an excellent electric-field relaxation ability, a high elongation at break, a reduced tension set, and high dielectric or insulating properties.

The present invention is a cable, which carries signal, having an integrated coiling and reinforcing wrapper. The cable has a segment near an end that is stiffer than the cable generally. This segment can be bent by hand, and once bent, will retain its bent shape. If the flexible part of the cable is wrapped into a coil, or otherwise gathered together, then the stiffer portion can be bent around the gathered portion to secure it in its gathered form.