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 cable gland assembly includes a gland nut defining a longitudinal axis. The gland nut includes an interior wall defining a gland nut opening and the interior wall includes a stop. A bushing is disposed within the gland nut opening proximate the stop. The bushing defines a bushing opening configured to receive a cable therein. A sleeve is moveably disposed within the gland nut opening adjacent the bushing. The cable gland assembly also includes a body defining a body opening configured to receive at least a portion of the cable therein. The body is configured to couple to the gland nut, and upon tightening of the gland nut to the body, the gland nut moves along the longitudinal axis compressing the bushing between the gland nut and the sleeve and around the cable. When the sleeve engages with the stop, further compression of the bushing is restricted.

A cable gland assembly includes a gland nut defining a longitudinal axis. The gland nut includes an interior wall defining a gland nut opening and the interior wall includes a stop. A bushing is disposed within the gland nut opening proximate the stop. The bushing defines a bushing opening configured to receive a cable therein. A sleeve is moveably disposed within the gland nut opening adjacent the bushing. The cable gland assembly also includes a body defining a body opening configured to receive at least a portion of the cable therein. The body is configured to couple to the gland nut, and upon tightening of the gland nut to the body, the gland nut moves along the longitudinal axis compressing the bushing between the gland nut and the sleeve and around the cable. When the sleeve engages with the stop, further compression of the bushing is restricted.

A cable distribution plant is protected from noise where a modem housing includes a switching power supply and modem digital electronics, the switching power supply for receiving AC mains power from an AC supply via an EMI filter and the modem digital electronics for receiving a switching power supply output from the switching power supply via an LC filter for filtering noise at a switching power supply frequency wherein multiple switching noise filters communicate with respective modems at subscriber sites protect a head end from switching power supply harmonic noise otherwise aggregated by distribute nodes and passed to the head end.

A power cable accessory assembly including: a first power cable including: first conductor, and a first electrical insulation layer arranged around the first conductor, wherein the first electrical insulation layer includes a first insulation groove extending circumferentially along an outer surface of the first electrical insulation layer, a connection sleeve including: a first axial end opening receiving an end portion of the first conductor protruding axially from the first electrical insulation layer, and a first locking sleeve groove extending circumferentially along an outer surface of the connection sleeve; and a first locking sleeve including: a first radially inwards extending flange engaging with the first insulation groove and a second radially inwards extending flange engaging with the first locking sleeve groove to restrict axial movement between the first electrical insulation layer and the connection sleeve, wherein the first radially inwards extending flange has a first radial dimension that decreases gradually in an axial direction towards the connection sleeve, and wherein the first insulation groove has a second radial dimension that decreases gradually in the axial direction towards the connection sleeve.

A power cable accessory assembly including: a first power cable including: first conductor, and a first electrical insulation layer arranged around the first conductor, wherein the first electrical insulation layer includes a first insulation groove extending circumferentially along an outer surface of the first electrical insulation layer, a connection sleeve including: a first axial end opening receiving an end portion of the first conductor protruding axially from the first electrical insulation layer, and a first locking sleeve groove extending circumferentially along an outer surface of the connection sleeve; and a first locking sleeve including: a first radially inwards extending flange engaging with the first insulation groove and a second radially inwards extending flange engaging with the first locking sleeve groove to restrict axial movement between the first electrical insulation layer and the connection sleeve, wherein the first radially inwards extending flange has a first radial dimension that decreases gradually in an axial direction towards the connection sleeve, and wherein the first insulation groove has a second radial dimension that decreases gradually in the axial direction towards the connection sleeve.

A cable end is provided, such as an end of a cable for transporting electric energy. The cable end includes an electrically insulating layer obtained from a composition including at least: a polymer matrix, the polymer matrix being made up of one or more synthetic rubbers; a metal hydroxide as metallic filler, the metal hydroxide being present in the composition, such that for 100 parts by weight of composition, the metal hydroxide is present in a larger proportion by weight in the composition than the polymer matrix; a coupling agent between the polymer matrix and the metal hydroxide; and a plasticizer. A method of producing a cable end is also provided.

A cable end is provided, such as an end of a cable for transporting electric energy. The cable end includes an electrically insulating layer obtained from a composition including at least: a polymer matrix, the polymer matrix being made up of one or more synthetic rubbers; a metal hydroxide as metallic filler, the metal hydroxide being present in the composition, such that for 100 parts by weight of composition, the metal hydroxide is present in a larger proportion by weight in the composition than the polymer matrix; a coupling agent between the polymer matrix and the metal hydroxide; and a plasticizer. A method of producing a cable end is also provided.

A bent portion of electric wires is protected at a high versatility by a protective member having a simple shape. A wire end of a wire harness 11 is protected. The wire harness 11 includes a wire bundle 13 and a connector 14 connected therewith. The wire bundle 13 includes the wire end, and the wire end includes a bent portion 13a and faces the connector 14. First, a sheet member 15a is folded perpendicularly to a wire lead-out surface 14a of the connector 14, thereby forming, concurrently, counter sides 31 facing the wire lead-out surface 14a, side surface covering portions, and a tip end protection portion 33. Next, the side surface covering portions are folded along a top protection portion formation portion 44, thereby forming, concurrently, side surface protection portions 32, a top protection portion 34 and an extending portion 35. Next, a wire end protection portion 15 is secured, with a pressure-sensitive adhesive tape or the like, to a wire bundle 13 portion while the relative position of the counter sides 31 with respect to the wire lead-out surface 14a is maintained. The wire end protection portion 15 is secured only to the wire bundle 13 portion, but is not secured to the connector 14.

A bent portion of electric wires is protected at a high versatility by a protective member having a simple shape. A wire end of a wire harness 11 is protected. The wire harness 11 includes a wire bundle 13 and a connector 14 connected therewith. The wire bundle 13 includes the wire end, and the wire end includes a bent portion 13a and faces the connector 14. First, a sheet member 15a is folded perpendicularly to a wire lead-out surface 14a of the connector 14, thereby forming, concurrently, counter sides 31 facing the wire lead-out surface 14a, side surface covering portions, and a tip end protection portion 33. Next, the side surface covering portions are folded along a top protection portion formation portion 44, thereby forming, concurrently, side surface protection portions 32, a top protection portion 34 and an extending portion 35. Next, a wire end protection portion 15 is secured, with a pressure-sensitive adhesive tape or the like, to a wire bundle 13 portion while the relative position of the counter sides 31 with respect to the wire lead-out surface 14a is maintained. The wire end protection portion 15 is secured only to the wire bundle 13 portion, but is not secured to the connector 14.