The invention relates to a connection device for earthing an electrical apparatus or putting it at a reference potential. It is inserted between a first electrically conductive part belonging to said electrical apparatus and a second part belonging to a support structure on which said electrical apparatus is mounted and which may be at least partly electrically insulating. It is characterized in that it comprises a first automatic connection area for automatically creating electrical contact with said first part, and a second automatic connection area for automatically creating electrical contact with an electrical conductor that is earthed or connected to a reference potential, when said electrical apparatus is mounted on said support structure. The electrical apparatus is thus automatically earthed or connected to a reference potential when it is mounted on said support structure via said connection device and said electrical conductor, specifically without any tools, screws or any other fastening member.

The invention relates to a connection device for earthing an electrical apparatus or putting it at a reference potential. It is inserted between a first electrically conductive part belonging to said electrical apparatus and a second part belonging to a support structure on which said electrical apparatus is mounted and which may be at least partly electrically insulating. It is characterized in that it comprises a first automatic connection area for automatically creating electrical contact with said first part, and a second automatic connection area for automatically creating electrical contact with an electrical conductor that is earthed or connected to a reference potential, when said electrical apparatus is mounted on said support structure. The electrical apparatus is thus automatically earthed or connected to a reference potential when it is mounted on said support structure via said connection device and said electrical conductor, specifically without any tools, screws or any other fastening member.

A cable connector assembly includes a pair of sub-assemblies movable in translation relative to each other along a clamping direction and a tightening device tightening the sub-assemblies along the clamping direction. Each of the sub-assemblies is pivotable relative to a pivot axis extending perpendicular to the clamping direction. Each of the sub-assemblies has a main housing and a clamping part at least partially housed within the main housing. The clamping part is movable in translation relative to the main housing along the clamping direction. The tightening device tightens the sub-assemblies along the clamping direction with a first clamping region formed between the sub-assemblies that receives and clamps a first cable. A secondary clamping region is formed in each of the sub-assemblies between the clamping part and the main housing that receives and clamps a secondary cable.

A “safe grounding apparatus” (SGA) for safely grounding or neutralizing the electrical conductors for permanent magnet motor (PMM) powered artificial lift systems and methods of practicing the same are disclosed. The SGA of the present invention ameliorates some of the dangers associated with PMM's. Methods of shorting, grounding, testing and monitoring the electrical conductors of a permanent magnet motor in order to safely manipulate the conductors are also disclosed.

The utility model discloses a lamp holder with an improved structure. A lamp holder housing of the lamp holder comprises a housing main body and a housing top cap; a main body mounting hole with a downward opening is formed in the housing main body, and a main body wire clamping groove is formed in the position. Through the structural design, a lamp holder with an improved structure disclosed by the utility model has the advantages of being novel in design, simple in structure, and low in manufacturing cost, and the product cost of the luminaire can be effectively reduced.

The utility model discloses a lamp holder with an improved structure. A lamp holder housing of the lamp holder comprises a housing main body and a housing top cap; a main body mounting hole with a downward opening is formed in the housing main body, and a main body wire clamping groove is formed in the position. Through the structural design, a lamp holder with an improved structure disclosed by the utility model has the advantages of being novel in design, simple in structure, and low in manufacturing cost, and the product cost of the luminaire can be effectively reduced.

A cable having a sensor for measuring variables comprises an insulation displacement contact (IDC) that is at least partially enclosed within a sensor housing having the sensor disposed therein. The IDC comprises one or more IDC sheath prongs that extend through an insulating sheath to the conducting wire of the cable. The IDC continuously extends from an IDC longitudinal first end to an IDC longitudinal second end. The sensor housing comprises a first housing side and a second housing side. When the IDC is at least partially enclosed by the sensor housing, a first housing side longitudinal first end and a second housing side longitudinal first end are proximate the IDC longitudinal first end, and a first housing side longitudinal second end and a second housing side longitudinal second end are proximate the IDC longitudinal second end.

A cable having a sensor for measuring variables comprises an insulation displacement contact (IDC) that is at least partially enclosed within a sensor housing having the sensor disposed therein. The IDC comprises one or more IDC sheath prongs that extend through an insulating sheath to the conducting wire of the cable. The IDC continuously extends from an IDC longitudinal first end to an IDC longitudinal second end. The sensor housing comprises a first housing side and a second housing side. When the IDC is at least partially enclosed by the sensor housing, a first housing side longitudinal first end and a second housing side longitudinal first end are proximate the IDC longitudinal first end, and a first housing side longitudinal second end and a second housing side longitudinal second end are proximate the IDC longitudinal second end.

A wire connector includes a member and a channel. A size of the channel is configured to correspond to a width of a largest wire to be connected by the wire connector. The wire connector includes a plurality of projections. The plurality of projections extend from at least one wall forming the channel.

A wire connector includes a member and a channel. A size of the channel is configured to correspond to a width of a largest wire to be connected by the wire connector. The wire connector includes a plurality of projections. The plurality of projections extend from at least one wall forming the channel.