Abstract: The invention provides an electrical housing having a cover portion 14, and a base portion (not shown) defining recesses for receiving electrical connectors 24. Each connector has a casing 26 defining a nozzle portion 28 through which terminations of electrical conductors 30 are receivable into the casing 26. The casing 26 holds captive a displaceable element 34 resembling a cylindrical plunger. The element 34 co-operates with a metal blade located within the casing 26 to strip off the insulation of the conductors 30 and join them electrically when the element 34 is urged into the casing. In use, a tool formation 40 forming part of the cover portion 14 is positioned over the displaceable element 34. When a downward force is applied to the cover portion 14 the tool portion 40 effectively urges the element 26 into its final position, thereby joining the conductors 30 electrically to each other.

Abstract: An electrical plug is equipped with an earthing pin 180 comprises an elongate metal body 260 defining a groove for holding captive a split band 460 of a moulded plastic material, which has inwardly facing nodes 480 which are receivable in a transverse passage through the body. The body 260 further defines a longitudinal threaded bore for receiving a threaded shank 380 having a tapered tip which, in use, is seated between the inner nodes on the band 460. When the pin 180 is inserted into a corresponding socket of an existing electrical outlet (not shown) and a circular cap 420 on the exposed end of the threaded shank 380 is rotated, the tip of the shank 400 bears against the nodes 480 on the band 460, thereby expanding the band radially outwardly until it frictionally engages an adjacent portion of the socket in which the pin 180 is located. The pin 180 together with any electrically conducting pins associated with the same plug are hence secured against inadvertent extraction from their respective sockets.