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.

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.

Various embodiments of the teachings herein include a signal cable connection device comprising: a cable with a sleeve and multiple loose wires extending out from an extremity of the sleeve; a conductive metal ring crimped at the extremity so the ring and the sleeve are fixed to each other, one end of the conductive metal ring having an outward-turned flange, and a shielding wire connected to the conductive metal ring; and a housing with a cable channel defining an outer opening located at an outer side of the housing and an inner opening located at an inner side of the housing, and a threaded hole at an edge of the inner opening. When a screw is screwed into the threaded hole, the outward-turned flange of the conductive metal ring is clamped between a head of the screw and a sidewall of the inner opening.

Housing for attachment to an electrical flat conductor rail with a flat conductor receptacle extending in a first axis, a connecting conductor receptacle extending transversely to the first axis in a second axis, wherein the flat conductor receptacle and the connecting conductor receptacle are formed from a upper housing side and a lower housing side with in each case an inner side and an outer side, which, in the closed state of the housing, receive the flat conductor rail with their inner sides lying opposite one another, characterized in that a shield contact element is arranged on at least one inner side, the shield contact element, in the closed state of the housing, bearing directly against a shield conductor of the flat conductor rail.

Housing for attachment to an electrical flat conductor rail with a flat conductor receptacle extending in a first axis, a connecting conductor receptacle extending transversely to the first axis in a second axis, wherein the flat conductor receptacle and the connecting conductor receptacle are formed from a upper housing side and a lower housing side with in each case an inner side and an outer side, which, in the closed state of the housing, receive the flat conductor rail with their inner sides lying opposite one another, characterized in that a shield contact element is arranged on at least one inner side, the shield contact element, in the closed state of the housing, bearing directly against a shield conductor of the flat conductor rail.

A cable distributor for individual cables that are shielded by an electrically conductive shield. The cable distributor has an electrically insulating outer housing, which receives a connection piece at which at least two individual cables are connected to each another. The shields of the connected individual cables are connected to each other by means of an electrically conductive shield housing, as a result of which a continuous shielding of the current-carrying parts of the cable distributor is achieved. A method for producing such a cable distributor is also proposed.

A cable distributor for individual cables that are shielded by an electrically conductive shield. The cable distributor has an electrically insulating outer housing, which receives a connection piece at which at least two individual cables are connected to each another. The shields of the connected individual cables are connected to each other by means of an electrically conductive shield housing, as a result of which a continuous shielding of the current-carrying parts of the cable distributor is achieved. A method for producing such a cable distributor is also proposed.

A termination for electrical cables may include: an outer insulation tubular body having a longitudinal axis; a conductive rod within the body; an elastomeric sleeve within the body and extending about an end portion of the rod; a connecting device within the sleeve, wherein the device is mechanically and electrically connected to the rod and is configured to mechanically and electrically connect to an electrical cable; a conductive tubular element within the body, configured to electrically connect to ground; a semi-conductive element within the tubular element and partially extending inside the sleeve on an opposite side to the rod with respect to the device; and at least one elastic conductive element radially interposed between, and in contact with, the tubular element and semi-conductive element, the at least one elastic conductive element configured to exert elastic force onto the semi-conductive element along at least one radial direction toward the axis.

A joint, termination or cross-connection arrangement for a cable includes a first cable and a protective casing. The arrangement further includes a transition sleeve. The transition sleeve, at a first longitudinal end surface thereof, is welded to the metallic sheath of the first cable around the whole circumference of the metallic sheath. The transition sleeve is furthermore welded to the protective casing around the whole circumference of the transition sleeve. A method of providing such an arrangement includes: welding the transition sleeve, at the first longitudinal end surface, to the metallic sheath of the first cable around the whole circumference of the metallic sheath; and welding the transition sleeve to a first tubular end portion of the protective casing around the whole circumference of the transition sleeve.

A joint, termination or cross-connection arrangement for a cable includes a first cable and a protective casing. The arrangement further includes a transition sleeve. The transition sleeve, at a first longitudinal end surface thereof, is welded to the metallic sheath of the first cable around the whole circumference of the metallic sheath. The transition sleeve is furthermore welded to the protective casing around the whole circumference of the transition sleeve. A method of providing such an arrangement includes: welding the transition sleeve, at the first longitudinal end surface, to the metallic sheath of the first cable around the whole circumference of the metallic sheath; and welding the transition sleeve to a first tubular end portion of the protective casing around the whole circumference of the transition sleeve.