Abstract: The invention provides a water-blocking composite comprising a substrate impregnated with or having a coating of a mixture of a radiation-polymerised compound and a water-swellable compound, and method for production thereof.

Abstract: An electric wire in which a carbon film having abrasion resistance and lubricity is formed on the outer surface of an insulation cover made from at least one kind of material selected from rubber and resin, and covering an electric wire body, and a manufacturing method of the electric wire.

Abstract: There is disclosed an electrical component having an axial direction and two ends for making electrical contact with another component comprising a plurality of electrically conductive fibers in a matrix, the plurality of the fibers being oriented in the matrix in a direction substantially parallel in the axial direction of the component and being continuous from one end of the component to the other end to provide a plurality of electrical point contacts at each end of the component, wherein the component further includes magnetic particles.

Abstract: A high temperature electrical insulation system is provided by forming a winding in an electrical device from a conductor that is pre-coated with a first layer of at least partially cured inorganic material. A second layer of inorganic material is applied, either during or just prior to forming the winding, over the first layer in order to seal any cracks in the first layer. The resultant electrical insulative coating is cured following the forming process, essentially at room temperature. The insulation system provided is thus totally inorganic, and its manufacture does not require the use of organics, or heating to high temperatures to cure the coating or to cause pyrolysis and/or volatilization of organic elements, as did prior electrical insulation systems. Furthermore, because no organics are utilized in either the manufacture or operation of the insulation system, there is no residual carbon in the resultant coating.

Abstract: To fix the conductors and coils of wind overhangs and to fill cavities in the winding overhangs of electrical machines, strings are used which include compressible rovings (1) made up of fibers and surrounded by an elastic sheath (2) which is permeable to impregnating resin. A spacing is introduced into the winding overhangs with a thickness which is greater than the spacings to be filled. The strings are impregnated after they are pulled in. To improve the overhang corona shielding, the strings are treated with a conductive impregnating agent which is permeable to the impregnating resin before they are pulled in.

Abstract: A medical temperature sensing probe including a temperature responsive device having electric contacts and insulated electric conductors having one end electrically connected to a respective one of the electric contacts. Each conductor comprises a carbon-fiber tow having low thermal conductivity and plated with an electrically conductive metal. The metal plated tows are X-ray translucent and have low thermal conductivity to minimize thermal conduction of heat to or from the temperature responsive device.

Abstract: A high voltage connector is formed of a composite pultruded member that has an inner core including a plurality of high resistance electroconductive strands carried in a resin binder. The inner core is surrounded by an outer nonconductive shell, and extends from a laser cut end of the outer shell to a contact face. During formation of the contact using laser techniques, portions of the outer shell are removed to expose the inner core, the resin binder of the inner core may be removed, and the strands of the inner core may be fibrillated and patterned as desired. In one embodiment, the resistance of the strands of the inner core of the high voltage connector provide a load resistor for a circuit to which the connector may be connected.

Abstract: A composition comprising:(a) polyethylene having a density equal to or less than 0.925 gram per cubic centimeter, grafted with an unsaturated aliphatic diacid anhydride; and(b) magnesium hydroxide, surface treated with a saturated or unsaturated carboxylic acid or a metal salt thereof in an amount of about 0.1 to about 1 part by weight of acid or salt per 100 parts by weight of magnesium hydroxide.

Abstract: New and improved shielding tapes for use in electric cable construction are disclosed and include a metallic foil treated on both sides with a conductive adhesion promoting material and surrounded on both sides with a continuous layer of a semi conductive polymer material. The tapes provide an improved electrostatic shield and moisture barrier for cables destined to be utilized in extended underground installation applications.

Abstract: A conductive wire useful with a magnetic head assembly is formed from a zirconium/copper alloy core, which is plated with a corrosion resistant conductive metal, such as gold. The wire is preferably covered with insulation, such as polyurethane.