CN103513170B - Laborsaving porcelain insulator zero-value live-detection electrospark fork tool - Google Patents

Abstract

The invention relates to a power system detection tool, in particular to a labor-saving porcelain insulator zero-value electrification detection spark fork tool, which is a high-voltage transmission line porcelain insulator zero-value electrification detection tool. The metal spark fork discharge gap is connected to the front end of the insulating operating rod; a fixing ring is connected to the front of the insulating operating rod; an insulating rope passes through the fixing ring, and a permanent magnet is connected to one end of the insulating rope. The invention reduces the labor intensity caused by the moment of the spark fork to the operator by suspending and pulling the front end of the spark fork used for the live detection of the traditional insulator through the insulating rope; at the same time, it reduces the vibration of the front end of the spark fork and improves the accuracy of positioning. In addition, compared with the method of using the hook to hang the iron tower through the permanent magnet, the present invention also has the advantages of convenient operation and simple structure. It can greatly improve the work efficiency of live workers and ensure the personal safety of workers.

Description

Labor-saving porcelain insulator zero value live detection spark fork tool

technical field

The invention relates to a power system detection tool, in particular to a labor-saving porcelain insulator zero-value electrification detection spark fork tool, which is a high-voltage transmission line porcelain insulator zero-value electrification detection tool.

Background technique

At present, due to the lack of power outage plans for transmission lines, the live detection of porcelain insulators has become very popular. The live detection is generally carried out by the spark fork method, that is, using the voltage distribution on the good insulator sheet, the spark fork short-circuits the insulator and there will be a sound , to judge whether the insulator is zero value. This method is currently the most effective method for judging the zero value of an insulator when it is charged. However, this method requires workers to go up the tower and hold a 3m-5m long insulating rod to operate (220kV-500kV varies according to the structure of the tower window), the force and moment generated by the spark fork will make the workers very tired, and because the insulating rod is too long, In the state of personnel fatigue, the vibration of the front end of the insulating rod is not easy to locate, and the fatigue operation is easy to become a dangerous factor, which makes the personal safety of the staff a potential safety hazard.

Contents of the invention

In order to overcome the large labor intensity and inconvenient operation brought to workers by the traditional spark fork gap test, the present invention provides a labor-saving ceramic insulator zero-value charged detection spark fork tool. The purpose is to provide a spark fork tool which is simple in structure, safe and reliable in use, can reduce the labor intensity caused by the moment of the spark fork to workers, reduce the shaking of the front end of the spark fork, and improve the accuracy of positioning.

The technical solution adopted by the present invention to solve its technical problems is:

The spark fork tool for labor-saving porcelain insulator zero-value live detection is connected with a metal spark fork discharge gap at the front end of the insulating operating rod; a fixing ring is connected at the front of the insulating operating rod; the insulating rope passes through the fixing ring and is insulated One end of the rope is connected with a permanent magnet.

The fixing ring is installed on the insulating operating rod at a distance of 3 cm to 5 cm from the discharge gap of the metal spark fork.

The fixing ring is a metal fixing ring.

The adsorption force of the permanent magnet to iron is between 100N and 200N.

The edge rope is silk insulating rope.

The edge rope is a silk insulating rope of Φ5mm-Φ15mm.

Described edge rope is the silk insulating rope of Φ 10mm.

The fixing ring is one of circular, square, rectangular, elliptical or special-shaped structures.

The advantages and beneficial effects of the present invention are: by hanging and pulling the front end of the spark fork used for the live detection of traditional insulators through the insulating rope, the labor intensity caused by the moment of the spark fork to the operator is reduced; at the same time, the problem of shaking at the front end of the spark fork is reduced, Improve positioning accuracy. In addition, compared with the method of using the hook to hang the iron tower through the permanent magnet, the present invention also has the advantages of convenient operation and simple structure. It can greatly improve the work efficiency of live workers, and ensure the personal safety of workers.

Description of drawings

The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the overall structural representation of the present invention;

Fig. 2 is an enlarged view of the lateral portion of the front-end fixing metal ring.

In the figure: an insulating rope 1, an insulating operating rod 2, a metal spark fork discharge gap 3, a permanent magnet 4, and a fixing ring 5.

detailed description

Example 1:

The present invention is a spark fork tool for labor-saving porcelain insulator zero-value charged detection. As shown in FIG. A fixed ring 5 is connected; a Φ10mm silk insulating rope 1 passes through the fixing ring 5, and one end of the silk insulating rope 1 is connected with a permanent magnet 4 with strong magnetic force. The tail rope of silk insulating rope 1 is led to the workman's operation place along insulating operation bar 2 and leaves certain rope length margin, will be decided according to detection insulator situation during concrete operation.

The structure of the fixing ring 5 described in the present invention is a rectangular structure.

The metal fixing ring 5 is installed on the insulating operating rod 2 at a distance of 33cm-5cm from the discharge gap of the metal spark fork. The adsorption force of the permanent magnet 4 to iron is between 100N and 200N.

During specific implementation, first install a fixing ring at the front end of the insulating rod of the spark fork gap test tool, 3cm-5cm away from the spark fork, and connect one end to a permanent magnet 4 with strong magnetic force. The permanent magnet 4 has an adsorption force of 100N to iron 200N Φ10mm silk insulation rope should pass through the ring, and the tail rope should be led to the worker's operation place along the insulation rod with a certain rope length margin, depending on the condition of the insulator to be tested. After going up the tower, the worker first raises the pole to attract the magnet to the cross arm of the iron tower above the insulator under test, and gradually loosens the traction rope, so that the front end of the spark fork falls to the porcelain insulator under test, and the worker holds the insulating rod with one hand at the same time And the tail rope, the other hand controls the spark fork at the same time to perform the operation of live detection zero value. During the operation, the insulating rope is in a tight state, and only when the spark fork needs to be moved up and down, it can be tightened or loosened through the insulating rope. After the work is over, tighten the insulating rope, the spark fork rises to the vicinity of the magnet position, pull the insulating rod and rope hard, and the magnet falls off the iron tower, and the work is completed. In order to ensure safe operation, the insulation rod and rope should be well insulated.

When using, it should be noted that after going up the tower, the worker first lifts the pole to attract the magnet to the iron tower cross arm above the insulator under test, and gradually loosens the silk insulating rope 1, so that the front end of the metal spark fork discharge gap 3 falls to the porcelain insulator under test , The worker grasps the insulation rod 2 and the silk insulation rope 1 tail rope with one hand at the same time, and the other hand simultaneously controls the insulation rod 2 and then controls the metal spark fork discharge gap 3 to perform the operation of live detection zero value. Silk insulating rope 1 is in taut state during operation, only when needing to move spark fork up and down, will tighten up or loosen by insulating rope and get final product. After the work is finished, the insulating rope is tightened, the spark fork rises to the vicinity of the position of the magnet, and the insulating rod and rope are pulled hard, the magnet falls off the iron tower, and the work is completed.

In order to ensure safety, insulation ropes and insulation rods should be confirmed to have good insulation performance before operation, and a sufficient safety distance and safety length should be ensured.

Example 2:

When the present invention is implemented, the metal retaining ring 5 is installed at a distance of 33cm, 32cm, 31cm, 30cm, 29cm, 28cm, 27cm, 26cm, 25cm, 24cm, 23cm, 22cm, 21cm, 20cm, 19cm, 18cm, 17cm, 16cm, 15cm, 14cm, 13cm, 12cm, 11cm, 10cm, 9cm, 8cm, 7cm, 6cm and 5cm in the insulation operating rod 2 of the position of any numerical value.

The edge rope 1 of the present invention is a silk insulating rope in any one of Φ5mm, Φ6mm, Φ7mm, Φ8mm, Φ9mm, Φ11mm, Φ12mm, Φ13mm, Φ14mm and Φ15mm.

The fixing ring 5 described in the present invention can be produced as a circle, a square, a rectangle, an ellipse or one of other special-shaped structures during specific implementation, all of which are within the protection scope of the present invention.

Others are identical with embodiment 1.

Claims (3)

1. The most laborsaving porcelain insulator zero-value live-detection electrospark fork tool, is to connect in the leading section of insulating bar (2) to have metal sparks fork discharging gap (3)；It is characterized in that: have retainer ring (5) in anterior connection of insulating bar (2)；Retainer ring (5) is passed by insulating cord (1), and one end connection of insulating cord (1) has permanent magnet (4)；On the insulating bar (2) of the position that described retainer ring (5) is arranged on distance metal sparks fork discharging gap (3) 3cm～5cm；Described retainer ring (5) is metal material；Described permanent magnet (4) to the absorption affinity of iron between 100N～200N；The described silk insulating cord that insulating cord (1) is Φ 5mm～Φ 15mm.
2. Laborsaving porcelain insulator zero-value live-detection electrospark fork tool the most according to claim 1, is characterized in that: the described silk insulating cord that insulating cord (1) is Φ 10mm.
3. Laborsaving porcelain insulator zero-value live-detection electrospark fork tool the most according to claim 1, is characterized in that: described retainer ring (5) be circular, square, oval or abnormally-structured in one.