AU2004100517A4 - Posi-lock earthing connector - Google Patents

Description

Description Title Posi-lock Earthing Connector. Field of Invention This invention relates to connectors for connecting and disconnecting earthing protection for electrical systems specifically, but not limited to, distribution transformer low voltage switch gear and bussbar. Summary of invention It is the primary objective of this invention to provide an improved connector which permits the earthing of low voltage electrical distribution networks quickly and locked positively in location. A plug and socket arrangement used at present does not lock into position and does not guarantee positive electrical connection. The connector comprises a socket assembly (figure 1) and plug assembly (figure The socket assembly is made up of the body the expansion pin a spring spring washer, flat washer nut 5 6) and a grubscrew The plug assembly is made up of the plug see figure insulating sleeve locking pin cable lug and heat-shrink The plug has an earthing cable crimped onto it and a locking pin is inserted through the hole. An insulated sleeve is then put over the plug assembly. The socket has a spring loaded expansion pin. The plug is inserted into the housing and rotated to lock it in position.

The pin in the socket opens up the legs of the plug and applies axial and radial force on the plug. The axial force positively locks the plug in position while the radial force creates a positive contact pressure, allowing efficient current flow.