GB1438103A - - Google Patents

Abstract

1438103 Cable connector PIRELLI GENERAL CABLE WORKS Ltd 17 July 1973 [4 Aug 1972] 36508/72 Heading H2E A connector for connecting one or more branch lines to a mains cable 20 which has one or more phase conductors as 22, 24, 26 in the embodiment of Fig. 1, sheathed by tubular neutral conductor 28, comprises conductive clamping means 10 and phase connection means 34, supported by insulating member 36 in groove 38 and bearing teeth 40 which penetrate the insulation of conductor 26, when conductor 28 has been stripped from it between edges 30 and 32, and including branch line connection means as aperture 42 with tapped hole 44 securing a clamping bolt, and branch neutral connection means compressing aperture 48 and tapped hole 50 with a clamping bolt. The clamping means 10 which encircles cable 20 comprises shells 12 and 14, which has a concave serrated cylindrical portion 46 arranged to abut conductor 28, and these are clamped together by bolts in tapped holes 16 and clearance holes 18. In a second embodiment Fig. 2, the aluminium shells 62 and 60 of the clamping means 10 extend circumferentially 240 and 120 degrees respectively. Two phase connection means each comprise clamping member 64 with slot 70 connected at its sides to two axial apertures 72 and a radial tapped hole 68 receiving a clamping bolt 74 which penetrates its phase conductor and distorts member 64 to clamp the branch phase connectors which can be accommodated in four apertures 72. The heads of bolts 74 shear off at the desired clamping pressure. Four branch neutral conductors are accommodated in the connection means 63. In a third embodiment (Fig. 3, not shown) the member 10 is divided into three equal segmental clamping members (80, 82, 84) each provided with an insulated phase connection means similar to that of Fig. 1. To mount the cable a flat (88) of the conductor 28 is peeled back, exposing all three phase conductors, and gripped between faces (90, 92) of members (80, 82).