A watertight joint and a plug-in device are provided. The watertight joint includes a gland, a plug, an end cap and a sleeve cover, wherein the end cap includes a cable, a wrapping body and a sealing ring, wherein the wrapping body is wrapped on the cable and in a cone-shaped structure, and the sealing ring is sleeved over the second end of the wrapping body, the plug is fixedly connected to the port of the cable, the sleeve cover and the gland are sleeved over the wrapping body, opposite to each other, and the sleeve cover and the gland are in threaded connection, and the inner wall of sleeve cover abuts on the sealing ring.

A watertight joint and a plug-in device are provided. The watertight joint includes a gland, a plug, an end cap and a sleeve cover, wherein the end cap includes a cable, a wrapping body and a sealing ring, wherein the wrapping body is wrapped on the cable and in a cone-shaped structure, and the sealing ring is sleeved over the second end of the wrapping body, the plug is fixedly connected to the port of the cable, the sleeve cover and the gland are sleeved over the wrapping body, opposite to each other, and the sleeve cover and the gland are in threaded connection, and the inner wall of sleeve cover abuts on the sealing ring.

A cartridge includes an outer case, partially filled with electrically insulating gel, and at least one electrically conductive track submerged in the insulating gel. Connection sets including at least one connector half and such a cartridge are also disclosed.

A cartridge includes an outer case, partially filled with electrically insulating gel, and at least one electrically conductive track submerged in the insulating gel. Connection sets including at least one connector half and such a cartridge are also disclosed.

An underwater connector half includes a base and at least two electrical connection terminals respectively connected to two electric wires received in at least one cable. The two electrical connection terminals are ring-shaped and coaxial about an axis located along a direction of assembly of a complementary connector half and the base has a side wall that is parallel to the axis and through which passes the cable. An underwater connector including such a connector half is also disclosed.

A connector assembly for an electrical connection, the connector assembly includes a plug and a socket. The plug includes a connector and a frame. The connector has a solid core conductor, the solid core conductor has an end portion. The frame surrounds the solid core conductor except for the end portion. The end portion is deformed to overlap the frame. The socket includes a socket conductor and a receiving portion into which the plug engages. The end portion directly contacts the socket conductor to form an electrical contact and causes the frame to deflect and provide a bias to force the end portion and the socket conductor into direct contact with one another.

Termination assembly for three-phase high voltage submarine cable(s) (1a-c), has an open enclosure (10) with at least two cable lead-in (3a-c) located at one end (16) of the enclosure, at least six termination units (21-29) within the enclosure for receiving three phase conductors per cable, respectively.

An electrical power connector for an electrical submersible well pump motor has a housing having a bore. A pair of rigid insulators are within the bore of the housing, each of the insulators having a cylindrical outward-facing side that is in contact with an inward-facing side wall of the housing. A resilient elastomer seal is sandwiched between the insulators in sealing engagement with the inward-facing side wall. Passages extend through each of the insulators and the elastomer seal for receiving insulated conductors of a power cable. A spring in abutment with one of the insulators exerts an axial compressive force on the elastomer seal.

An electrical power connector for an electrical submersible well pump motor has a housing having a bore. A pair of rigid insulators are within the bore of the housing, each of the insulators having a cylindrical outward-facing side that is in contact with an inward-facing side wall of the housing. A resilient elastomer seal is sandwiched between the insulators in sealing engagement with the inward-facing side wall. Passages extend through each of the insulators and the elastomer seal for receiving insulated conductors of a power cable. A spring in abutment with one of the insulators exerts an axial compressive force on the elastomer seal.

A socket, connectable to a plug-in device, wherein the plug-in device is a bushing and/or a plug-in cable termination, is described. The socket includes a current conduction path and a field control unit. The field control unit includes a layer arrangement with at least three conductive layers arranged around the current conduction path and separated by an insulating material