Phase-to-phase spacing bar

Abstract

The invention relates to a phase-to-phase spacing bar. The invention relates to a swinging prevention device, in particular to a spacing bar which is used for fixing a phase-to-phase conducting wire and preventing the swinging of the conducting wire on a high-voltage power transmission circuit. The phase-to-phase spacing bar mainly consists of a bar-shaped insulator, two wire clips, two groups of pre-twisted wires, two groups of bolt pins and two damping mats; and the bar-shaped insulator consists of a mandrel, two end connection armor clamps and a silicon rubber umbrella sleeve, the two end connection armor clamps are in a triangular cam shape and form the channel-type connection with the lower ends of the wire clips through the bolt pins, the two damping mats are arranged inside the channel-type structure on the lower end of each wire clip to be closely propped against the cam-shaped outer side of the connection armor clamp, the upper end of each wire clip is in a V-shaped ring-shaped structure, the upper part of a V-shaped ring is contacted with an installed conducting wire, one group of pre-twisted wire passes through the inside of the V-shaped ring, and two ends of the pre-twisted wire are respectively used for winding the installed conducting wire. Compared with the prior art, the phase-to-phase spacing bar has advantages of convenience in installation, constant grasping force, prevention of vibration and swinging of the conducting wire, no damage of the conducting wire, no maintenance and the like.

Description

technical field [0001] The invention relates to an anti-galling device, which belongs to the line protection field of electric power systems, and is especially suitable for interphase support and fixing of wires in high-voltage transmission lines, and has the function of suppressing galloping of the wires and sub-gap oscillation. Background technique [0002] There are a variety of anti-galling devices in the current power lines, such as clamp rotary spacer, double pendulum anti-dance, turbulence anti-dance, detuned pendulum, etc., and the composite interphase spacer is a relatively stable effect anti-dancing device. Composite interphase spacers currently on the market are generally connected by ordinary rod insulators and ordinary wire clamp fittings. For example, the Chinese invention patent with the patent number 201120015368.7 and the patent name of composite interphase spacer for lines only describes a type without wires. For example, the Chinese invention patent whose...

AI Technical Summary

Problems solved by technology

The general clamps use bolts to fix the wires, which have the disadvantages of easy loosening of the bolts, regular maintenance, and easy crushing of the wires, and the effect of suppressing the breeze vibration and sub-gap vibration of the wires is not ideal.

Such products will directly affect the safe operation of power lines and increase maintenance costs

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