A cable including at least one elongated conductive element and at least one fire-resistant insulating layer in direct physical contact with the elongated electrically conductive element, the fire-resistant layer is obtained by heat treatment of a liquid inorganic composition.

A cable including at least one elongated conductive element and at least one fire-resistant insulating layer in direct physical contact with the elongated electrically conductive element, the fire-resistant layer is obtained by heat treatment of a liquid inorganic composition.

The present disclosure provides insulated electrical conductors, e.g., wires, and methods for producing such insulated electrical conductors to combat partial discharge by enhancing bond strength between the electrical conductor and a base insulating thermoplastic layer (e.g., including a PAEK). Such insulated electrical conductors can include: an electrical conductor; an insulating coating on at least a portion of a surface of the electrical conductor; and an oxide layer between the electrical conductor and the insulating coating. Methods for producing such insulated electrical conductors can involve extrusion of an insulating polymer onto the electrical conductor under ambient atmosphere and a subsequent heat treatment step, which can also be conducted under ambient atmosphere.

A transparent conductor including a transparent substrate, a first dielectric layer, a metal layer containing silver or a silver alloy as a primary component, a second dielectric layer composed of a semiconductor, and a third dielectric layer of which electrical conductivity is different from that of the second dielectric layer in the order presented, wherein the third dielectric layer-is composed of a conductor.

Magnet wire with corona resistant enamel insulation is described. A magnet wire may include a conductor, and at least one layer of polymeric enamel insulation may be formed around the conductor. The polymeric enamel insulation may include a filler dispersed in a base polymeric material, such as polyimide. Additionally, the filler may include an organometallic compound.

Magnet wire with corona resistant enamel insulation is described. A magnet wire may include a conductor, and at least one layer of polymeric enamel insulation may be formed around the conductor. The polymeric enamel insulation may include a filler dispersed in a base polymeric material, such as polyimide. Additionally, the filler may include an organometallic compound.

A method for preparing a power inductor includes the following steps A to E: A: preparing a composite wire; B: winding the composite wire according to a predetermined shape and a predetermined coil quantity, so as to form coils; C: placing the coils into a mold cavity, adding metal soft magnetic powder to the mold cavity, and pressing the metal soft magnetic powder and the coils to form a base comprising the coils; D: performing sintering treatment on the base; and E: plating two terminal electrodes on two ends of the base to form the power inductor.

A method for preparing a power inductor includes the following steps A to E: A: preparing a composite wire; B: winding the composite wire according to a predetermined shape and a predetermined coil quantity, so as to form coils; C: placing the coils into a mold cavity, adding metal soft magnetic powder to the mold cavity, and pressing the metal soft magnetic powder and the coils to form a base comprising the coils; D: performing sintering treatment on the base; and E: plating two terminal electrodes on two ends of the base to form the power inductor.

The present disclosure relates to electrical machines. The teachings thereof may be embodied in a corona shielding system, especially for an electrical machine, e.g., a high-voltage machine, such as a generator for generation of electrical energy, an electric motor, or another piece of electrical equipment having a relatively high rated voltage, e.g., a transformer or a bushing or a cable. A corona shielding system may include: a polymeric matrix; and filler particles comprising mica surrounded by a layer of at least one ceramic metal oxide. The filler particles may be distributed throughout the polymeric matrix.

The present disclosure relates to electrical machines. The teachings thereof may be embodied in a corona shielding system, especially for an electrical machine, e.g., a high-voltage machine, such as a generator for generation of electrical energy, an electric motor, or another piece of electrical equipment having a relatively high rated voltage, e.g., a transformer or a bushing or a cable. A corona shielding system may include: a polymeric matrix; and filler particles comprising mica surrounded by a layer of at least one ceramic metal oxide. The filler particles may be distributed throughout the polymeric matrix.