A composite cable which makes it possible to improve disconnection resistance of a signal line. The composite cable includes a signal line part, a pair of power supply lines, and a sheath. The signal line part is composed of a first signal line and a second signal line twisted together. Each of the first signal line and the second signal line is composed of a pair of wires twisted together. The sheath covers an outer circumference of a wire bundle composed of the signal line part and a pair of power supply lines, the signal line part and the pair of power supply lines being twisted together. The signal line part is covered with a shield conductor formed of a conductive element wire spirally wound around the outer circumference of the signal line part.

A low voltage power conductor can include a plurality of copper-clad aluminum wires braided into a power braid. The low voltage power conductor may be configured for use in a power distribution system for distributing power from an electrical grid, and can be attached to the transformer and the power distribution module at single respective attachment points. A low voltage power distribution system can include a low voltage power conductor and a clamp that includes a clamp body and a clamp spacer. Legs of the clamp spacer can be configured to limit deformation of the low voltage power conductor upon compression of the low voltage power conductor by the clamp.

Techniques, systems and articles are described for monitoring electrical equipment of a power grid and predicting likelihood failure events of such electrical equipment. In one example, a sensing device is configured to couple to an electrical power cable. The sensing device includes a plurality of concentric layers and a monitoring device. The plurality of concentric layers include a first layer, second layer, and third layer. The first layer is configured to concentrically surround a central conductor of the electrical cable and includes an insulating material. The second layer includes a conducting material. The third layer includes a resistive material configured to resist electrical flow between the second layer and a ground conductor exterior to the third layer. The monitoring device includes a sensor and communication unit configured to output data indicative of the sensor data.

A power cable (1) for an electric submersible pump (ESP) system, and systems and methods thereof are described herein. The power cable (12) is a weight-bearing three-phase power cable comprising a core (8) having an outer diameter and comprising three insulated conductors (2) substantially embedded in a polymeric bedding (3); and a multi-layered armor comprising an inner steel-based continuous tube (4) surrounding and in direct contact with the core (8), and an outer steel-based continuous tube (5) surrounding and in direct contact with the inner steel-based continuous tube (4). The inner steel-based continuous tube (4) and the outer steel-based continuous tube (5) are mechanical congruent with each other as a result of a roll reducing technique.

A capacitive power transmission cable (1) comprising at least two sets of conductive strands (2). The strands of the sets are distributed in a transverse cross-section of the cable, whereby the two sets are in capacitive relation to each other.

A novel branching unit provided. The branching unit may include a first port for connecting a first power conductor disposed in a first optical cable, a second port for connecting a second power conductor disposed in a second optical cable, and a third port for connecting a third power conductor and a fourth power conductor disposed in a branch cable. The third port may include a first sub-port and a second sub-port. The first sub-port may be configured to connect the third power conductor of the branch cable. The second sub-port may be configured to connect the fourth power conductor of the branch cable.

An electrical component cover includes a central portion, a first end portion and a second end portion and one or more flexible portions between the central portion and the first end portion or second end portion to enable the electrical component cover to flex and thereby facilitate varying geometries in power lines attached to insulators.

Food waste disposer systems and related systems for coupling food waste disposer systems having permanent magnet (PM) motors to electrical power sources, and related coupling and configuration methods, are disclosed herein. In at least one example embodiment, a food waste disposer system includes a PM motor, an AC-to-DC converter having AC input and DC output ports, a housing, a power cord connection structure supported at least indirectly upon the housing, an adapter, and a power cord including a first plug configured to be coupled to the connection structure. The disposer system can be selectively implemented either in a first installation environment including a wall outlet by way of coupling the first plug to the connection structure, or in a second installation environment including a hardwired power cable by coupling additional lead wires of the hardwired power cable to the adapter and further coupling the adapter to the connection structure.

A power cable for a light string includes two wires, a body and a switching circuit. The two wires extend from a first end to a second end. The body is disposed on the two wires. The switching circuit includes a normally open contact switch and a voltage dividing resistor. The normally open contact switch is connected in series with the voltage dividing resistor and is electrically connected to two wires. The normally open contact switch and the voltage dividing resistor are disposed in the body, and the normally open contact switch is at least partially exposed on the surface of the body. The normally open contact switch is configured to be repeatedly pressed, so that the voltage division state between the two wires changes to form a trigger signal combination.

A power cable includes a conductor, an inner semi-conductive layer covering the conductor, an insulating layer covering the inner semi-conductive layer and impregnated with insulating oil, an outer semi-conductive layer covering the insulating layer, a metal sheath layer covering the outer semi-conductive layer, and a cable protection layer covering the metal sheath layer. A minimum thickness t1 of a certain cross section of the metal sheath layer is less than or equal to 90% of a maximum thickness t2 thereof.