Patent ID: 8425265
Filing Date: 2013-04-23
Classification: F16B,H01R

Abstract:
1. An arrangement for fastening an electrical conductor comprising: a clamp of metal constructed as a pipe piece; and at least one clamping screw for fastening an electrical conductor in the clamp, which in a wall of the clamp has at least one throughhole provided with a thread for receiving the clamping screw, said clamping screw being having a construction that has a circumferential intended breaking point for limiting the force which is exerted by means of a tool on the clamping screw and effects a rotation about its axis, wherein the clamping screw has a tubular contact part provided with an external thread and adapted to be screwed into the throughhole of the clamp, wherein the contact part has at its one axial end a contact surface intended for contacting an electrical conductor, and has along its length a circumferential intended breaking point at a significant distance from this contact surface, wherein the clamping screw additionally has an actuating member comprised of an upper part and a lower part and adapted to be screwed onto the contact part and equipped with an internal thread and a contact surface for the tool, wherein the upper part is constructed as a cap with a bottom area extending transversely of its axial direction, wherein the actuating member is in the assembly position screwed onto the contact part, such that the end face facing away from the contact surface of the contact part rests against the bottom area of the upper part of the actuating member, and wherein the contact part has a defined wall thickness which, after reaching the tight seat of the clamping screw in the clamp, by its rotation by means of the tool and the resulting shearing-off caused by the rotation of the portion of the contact part located above the intended breaking point, and of the upper part of the actuating member for tearing off the portion of the contact part protruding from the clamp by the lower part of the actuating member rotated by means of the tool.