Versatile Overcurrent Clamp for Vertical Mounting

Abstract

The invention relates to a multifunctional overcurrent clamp capable of being mounted vertically. The multifunctional overcurrent clamp comprises a conductor clamping groove, a T-shaped mounting head and an insulated U-shaped mounting rod; the T-shaped mounting head comprises a locking lead screw and a mounting plate; the locking lead screw is vertically mounted in the middle of the mounting plate; two through grooves are formed in the mounting plate; a bead is arranged in each through hole; a screw hole is formed in the conductor clamping groove; the locking lead screw is connected with the conductor clamping groove by use of the screw hole; the two plugs of the insulating U-shaped mounting rod are inserted into the two through holes. The multifunctional overcurrent clamp is rotated by a worker on a tower to drive the conductor clamping groove to be tightened or untightened; when an overcurrent pulley is mounted on a horizontal live conductor, an arc extinction rope is used for short-circuiting the potential difference of drainage by use of the overcurrent pulley. The clamp can be applied to any towers and any conductors. The clamp is manufactured by use of a high-strength aluminum alloy, and has the characteristics of light weight, high strength, strong current conductivity and convenience for mounting.

Description

technical field [0001] The invention relates to a tool used for live operation of 220kV and 66kV transmission lines, in particular to a multifunctional overcurrent fixture which can be installed vertically. Background technique [0002] Since the drainage of the tension tower of the transmission line is an installation form of downward slow arc, it is necessary to short-circuit the live wires on both sides of the connecting plate with metal wires in the work of disconnection and drainage of the line on both sides of the connecting plate to ensure Before and after the plate is opened, the charged wires on both sides are always at the same potential, and there is no potential difference. The traditional method of live disconnection and drainage of transmission lines is to use equipotential electricians to enter a strong electric field and tie metal wires on the slow arc downward drainage for short-circuiting, so that the live wires on both sides are at the same potential, whic...

AI Technical Summary

Problems solved by technology

[0004] The first type can be installed on the slow arc downward drainage due to the tight connection with the insulating rod. The insulating rod cannot be disassembled, which will affect other procedures of the operation.

[0005] The overcurrent fixture of the second type of detachable insulating rod is not connected to the insulating rod. It is hung by the insulating rod and then locked, but it can only be hung on the horizontal wire, and it cannot be installed on the slow arc downward drainage.

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