SU41054A1 - Release Clamp for Whip Insulators - Google Patents

Description

When constructing power lines mounted on the pin connectors, the transmission elements (masts, insulators, intermediate and fastening fittings) are calculated for a complete unilateral pull of the wire, which is 1800-1000 Kg, as if the wires are broken the intermediate support falls all the tension acting in the span. When installing power lines on suspension insulators — due to the use of releasing clamps, this emergency load is reduced to 180–200 kg and, accordingly, all the line elements mentioned above are facilitated. The present invention aims to realize the possibility of using such dispensing clamps when installing power lines on pin insulators. For this purpose, according to the invention, the insulator is made rotatable, for which its pin at the points of attachment with the supporting crosspiece of supplies of cut-outs of the corresponding form.

In FIG. 1 shows a perspective view of the proposed release clip; FIG. 2 and 3 are a side view and a top view of the yoke carrying the wire; FIG. 4 and 5 - side view and view

(489)

on top of the supporting clip part; FIG. 6 and 7 is a top and side view of a die to clamp the wire; FIG. 8 is a front view of a part of the pin; FIG. 9 is a side view of an insulator supporting traverse; FIG. 10 is a general view of the clip for the support insulator.

Offered for this (Fig. 1), as well as other already known types of releasing clamps, consists of a holder 1 (“boat”) supporting a wire with a wire groove and two fingers 11, 11 symmetrically located on both sides of the holder (FIG. 2 and 3). In contrast to the already known clips, semi-ring grooves 12, in which the fingers 11 are mounted, are made in the proposed clamp in the supporting part 4 (Fig. 4 and 5) fixed to the head of the pin insulator 6 by means of the hook brackets 5. In the groove of the yoke 1, the wire is clamped by means of a plate 3 (Fig. 6 and 7) and two bolts 2. A wave-shaped groove of the sleeve B1 is cut in order to clamp the wire more tightly in it and to reduce the size of the sleeve.

The insulator 6 is mounted on the pin 8 (Fig. 8), equipped in the lower part with two notches 10 and 10. With the forked hole 10 the pin 8 is installed