An insulating device includes a body portion including a first surface feature extending between a first surface end and a second surface end. The first surface end defines a first surface cross-sectional size. The second surface end defines a second surface cross-sectional size. The second surface cross-sectional size is less than the first surface cross-sectional size. The body portion includes a second surface feature extending between a third surface end and a fourth surface end. The third surface end defines a third surface cross-sectional size. The fourth surface end defines a fourth surface cross-sectional size. The fourth surface cross-sectional size is less than the third surface cross-sectional size. The insulating device includes a flange portion having a flange wall. The flange wall includes a first mating portion that engages the first surface feature and a second mating portion that engages the second surface feature of the body portion.

A lighting system includes at least one lighting component and a signal carrier. The signal carrier includes an electrically insulative webbing, and a first electrical conductor and a second electrical conductor separated and spaced apart from each other by the electrically insulative webbing and extending in parallel to each other in a longitudinal direction. The first and second electrical conductors are disposed at least partially within the electrically insulative webbing. The at least one lighting component is mounted to the signal carrier via a slot passing through the electrically insulative webbing, wherein the at least one lighting component includes at least one light source and at least one coupler configured to extract power from the first and second electrical conductors without making an electrically conductive physical contact to the first and second electrical conductors.

A lighting system includes at least one lighting component and a signal carrier. The signal carrier includes an electrically insulative webbing, and a first electrical conductor and a second electrical conductor separated and spaced apart from each other by the electrically insulative webbing and extending in parallel to each other in a longitudinal direction. The first and second electrical conductors are disposed at least partially within the electrically insulative webbing. The at least one lighting component is mounted to the signal carrier via a slot passing through the electrically insulative webbing, wherein the at least one lighting component includes at least one light source and at least one coupler configured to extract power from the first and second electrical conductors without making an electrically conductive physical contact to the first and second electrical conductors.

It is aimed to suppress the peeling of an adhesive from an insulation coating of an insulated electrical cable due to resin shrink after the molding of a molded member. A molded part-equipped electrical cable includes a terminal-equipped electrical cable with an insulated electrical cable and a terminal, an adhesive provided on a surface of the insulation coating of the terminal-equipped electrical cable and a molded member covering from a part provided with the adhesive on the insulation coating of the terminal-equipped electrical cable to a connected part of the insulated electrical cable and the terminal. The molded member includes a first molded part and a second molded part separately molded, and the first molded part includes a part covering the adhesive while being in contact with the adhesive.

It is aimed to suppress the peeling of an adhesive from an insulation coating of an insulated electrical cable due to resin shrink after the molding of a molded member. A molded part-equipped electrical cable includes a terminal-equipped electrical cable with an insulated electrical cable and a terminal, an adhesive provided on a surface of the insulation coating of the terminal-equipped electrical cable and a molded member covering from a part provided with the adhesive on the insulation coating of the terminal-equipped electrical cable to a connected part of the insulated electrical cable and the terminal. The molded member includes a first molded part and a second molded part separately molded, and the first molded part includes a part covering the adhesive while being in contact with the adhesive.

Provided is a superconducting fault current limiter having a composite insulating structure. The superconducting fault current limiter includes: a superconducting current limiting unit, an inner composite insulating cylinder, an outer composite insulating cylinder and a low-temperature container. The outer composite insulating cylinder is sleeved inside the low-temperature container; the inner composite insulating cylinder is sleeved inside the outer composite insulating cylinder; the superconducting current limiting unit is sleeved inside the inner composite insulating cylinder. The superconducting current limiting unit and the inner composite insulating cylinder are securely connected through a first support, and the low-temperature container and the outer composite insulating cylinder are securely connected through a second support.

Provided is a superconducting fault current limiter having a composite insulating structure. The superconducting fault current limiter includes: a superconducting current limiting unit, an inner composite insulating cylinder, an outer composite insulating cylinder and a low-temperature container. The outer composite insulating cylinder is sleeved inside the low-temperature container; the inner composite insulating cylinder is sleeved inside the outer composite insulating cylinder; the superconducting current limiting unit is sleeved inside the inner composite insulating cylinder. The superconducting current limiting unit and the inner composite insulating cylinder are securely connected through a first support, and the low-temperature container and the outer composite insulating cylinder are securely connected through a second support.

An insulator is rendered less breakable. A spark plug insulator is a tube-shaped spark plug insulator having a through hole extending in a direction of an axial line. The spark plug insulator contains alumina as a main component and mullite at at least part of the insulator. Mullite is contained in only an inner circumferential surface of the tube-shaped spark plug insulator and in at least part of the inner circumferential surface of the spark plug insulator in an area extending toward a distal end from a portion having a largest outer diameter.

An insulator is rendered less breakable. A spark plug insulator is a tube-shaped spark plug insulator having a through hole extending in a direction of an axial line. The spark plug insulator contains alumina as a main component and mullite at at least part of the insulator. Mullite is contained in only an inner circumferential surface of the tube-shaped spark plug insulator and in at least part of the inner circumferential surface of the spark plug insulator in an area extending toward a distal end from a portion having a largest outer diameter.

A penetrator device has an outer housing of non-conductive, insulating material having a through bore, at least one conductive pin formed in one or two parts extending through the housing and having a first end portion and a second end portion extending out of the respective first and second ends of the housing, a first cladding layer bonded over the first end portion of the pin to form a first bonded assembly, a second cladding layer bonded over the second end portion of the pin to form a second bonded assembly, and the material of the first and second cladding layer comprising a corrosion resistant conductive material different from the pin material.