CN204481452U - Lightning arrester Special wire-clip - Google Patents

Abstract

The utility model discloses a kind of lightning arrester Special wire-clip, its studdle, connection egative film, wire clamp upper slice, wire clamp bottom sheet, connecting screw rod, it is characterized in that, wire clamp upper slice and wire clamp bottom sheet are bolted and compress lead-in wire, the lower surface of wire clamp bottom sheet is extended out connection egative film, connects egative film and is connected with studdle by connecting screw rod.This wire clamp can make lightning arrester and wire contacts firmly, and enlarge active surface reduces contact resistance, and wire clamp adjustable angle, need not bending lead.

Description

Surge arrester special clamp

technical field

The utility model relates to a clamp for a lightning arrester, which belongs to the technical field of power transmission and distribution equipment.

Background technique

In the past installation of lightning arrester lead wires, the methods usually used are: 1. Winding method (easy to loosen, not firm, and the diameter of the lead wire cannot be effectively used); 2. Plug-in method (small contact area, easy to produce oxide layer, adjust the angle Small); 3. Copper-aluminum nose crimping method (the construction is more cumbersome, time-consuming, and the adjustment angle is small). The above three methods all have small adjustment angles between the lead wire and the arrester, large contact resistance, poor lightning protection effect, easy fatigue of the arrester, short life, and in severe cases, the function of the arrester will fail, affecting the safe and economical operation of the transformer. The maintenance cost will affect the line trip rate and the reliability of the power supply line. Therefore, it is particularly important to be firm and flexible to operate when the lead wire of the arrester is installed.

Contents of the invention

The purpose of the utility model is to provide a special line clamp for lightning arrester, which can flexibly adjust the angle between the lightning arrester and the lead wire, greatly increase the contact area between the lightning arrester and the lead wire, and reduce the contact resistance of the lightning arrester.

The utility model is realized in this way, and it comprises: support screw rod, connecting bottom piece, wire clamp upper piece, wire clamp lower piece, connecting screw rod, it is characterized in that, wire clamp upper piece and wire clamp lower piece are fixed and pressed lead wire by bolt , the lower surface of the lower piece of the wire clip leads out to the connecting negative, the connecting negative is connected with the supporting screw through the connecting screw, and the lower end of the supporting screw has a screw hole.

Preferably, the lower surface of the upper piece of the clamp is provided with an upper groove, and the upper surface of the lower piece of the clamp is provided with a lower groove, and the upper groove and the lower groove together form a hole for clamping the lead wire.

The technical effect of the utility model: the equipment clamp can make the arrester and the lead wire contact firmly, increase the contact area, reduce the contact resistance, and can adjust the angle between the lead wire and the arrester in a large range, so that the arrester is evenly stressed. Increase the life of the arrester, reduce the tripping of the line caused by the failure of the arrester, and effectively improve the reliability of the power supply line.

Description of drawings

Fig. 1 is the front view of the utility model;

Fig. 2 is the right view of the utility model;

Fig. 3 is the top view of the utility model;

Fig. 4 is the bottom view of the utility model.

Detailed ways

As shown in Figures 1, 2, 3 and 4, the arrester-specific clamp includes a support screw 1, a connecting base 3, two upper clamps 5, a lower clamp 4, and a connecting screw 3. The upper clamp The lower surface of 5 is provided with an upper groove, and the upper surface of the lower clamp piece 4 is provided with a lower groove, and the upper groove and the lower groove together form a hole for clamping the lead wire. The upper clamp piece 5 and the lower clamp piece 4 The lead wire is fixed and pressed by the bolt 6, and the lower surface of the clamp lower piece 4 extends out of the connecting base 3, and the clamp lower piece 4 and the connecting base 3 can be welded together, or integrally molded by casting or forging to obtain the clamp The bottom piece 4 and the connecting bottom piece 3 are integrated components, the connecting bottom piece 3 is connected with the support screw 1 through the connection screw 2, the lower end of the support screw 1 has a screw hole 7, and the inner wire of the screw hole 7 is closely connected with the lightning arrester screw.

The connecting film 3 can rotate around the connecting screw rod 2. When installing and using, adjust the angle of the wire clamp and tighten the connecting screw rod 2 to get final product. Compared with the general installation method of directly installing the lead wire on the lightning arrester screw, the utility model adopts a wire clip to clamp the lead wire, which not only increases the contact area and reduces the contact resistance, but also can be firmly installed regardless of the thickness of the lead wire. Because the clip angle is adjustable, installation eliminates the need to twist the leads as with traditional installation methods.

Claims (2)

1. A special wire clip for a lightning arrester, which includes a support screw, a connecting base, a top sheet of the wire clip, a bottom sheet of the wire clip, and a connecting screw rod, and is characterized in that the top sheet of the wire clip and the bottom sheet of the wire clip are fixed to compress the leads by bolts, The lower surface of the lower sheet of the cable clip leads out to the connecting negative, and the connecting negative is connected with the supporting screw through the connecting screw, and the lower end of the supporting screw has a screw hole. 2. The special wire clamp for lightning arrester according to claim 1, the lower surface of the upper piece of the wire clamp is provided with an upper groove, and the upper surface of the lower piece of the wire clamp is provided with a lower groove, and the upper groove and the lower groove are together Forms the hole for clamping the lead.