CN201601455U - Insulated cross arm - Google Patents

Abstract

The insulating cross arm disclosed by the utility model is composed of a cross bar (1), an arc-shaped connector (2), a chain lock (3) and a card slot (4). The cross bar is a circular hollow structure and is made of a composite insulating material. An arc-shaped connector is arranged in the middle of the cross bar, and chain locks are respectively fixedly connected to the cross bars on both sides of the arc-shaped connector for fixed connection with the electric pole. A card slot is provided for fixing the wire. The utility model solves the problem that the insulation tool in the single cross-arm of the 10KV overhead line does not match with the electric pole iron cross-arm in the live-line operation. Because it is a hollow structure and made of composite insulating materials, it is not only light in weight, easy to install, High pressure resistance, high strength, and large expansion range (the length of the pole used for the chain lock is within

Left and right), economical and practical, and improve the safety factor of live work and the work efficiency of live work.

Description

Insulated cross arm

technical field

The utility model belongs to the technical source of a cross arm for live work on distribution lines, and mainly relates to an insulating cross arm, which is suitable for live work on 10KV overhead lines.

Background technique

With the continuous improvement of the level of social modernization, the requirements for power supply reliability are also getting higher and higher. How can we achieve non-stop power supply, less power outages, and meet the needs of the economy and society for uninterrupted power supply? Vigorously carrying out live work on distribution lines is an effective measure for power supply companies to improve power supply reliability and achieve uninterrupted power supply. It is an urgent need for urban power grids to reduce planned power outages and shorten fault outages. It plays a very positive role in reducing losses and improving the economic benefits of the power grid.

The cross arm is one of the main components of the overhead line of the distribution line. At present, the cross-arms used in the single-circuit lines of 10KV overhead lines are mostly iron cross-arms. Due to years of wind and rain, iron cross-arms will appear corrosion, aging, deformation and other phenomena. If they are not replaced in time, failures and power outages will increase. times, causing safety hazards to the power grid operation. In the past, when the cross-arm was replaced with electricity, it was generally replaced with an insulating support rod dedicated to bucket arm vehicles. The insulating pole is 150mm wide, 70mm thick, and 2200mm long. The phenomenon of length mismatch (the two ends of the insulating pole usually exceed the iron cross arm and the wire by about 250mm), and it is very troublesome to lift or drop the wire when it is live, which brings a lot of inconvenience to the operation and affects the work efficiency.

Contents of the invention

The purpose of this utility model arises thus, proposes a kind of insulating cross arm. It solves the problem that the tool does not match the electric pole iron cross arm when replacing the cross arm in live work, increases the safety factor during live work, improves the work efficiency of live cross arm replacement, and prolongs the service life of the cross arm.

The technical solution adopted by the utility model to achieve the above purpose is: it is composed of a cross bar, an arc-shaped connector, a chain lock and a card slot. The cross bar is a circular hollow structure made of composite insulating material. There are arc-shaped connectors at the position, and chain locks are fixedly connected to the crossbars on both sides of the arc-shaped connectors for fixed connection with the electric poles. wire.

左右)、经济实用，而且提高了带电作业的安全系数和带电作业的工作效率。The utility model solves the problem that the insulation tool in the single cross-arm of the 10KV overhead line does not match with the electric pole iron cross-arm in the live-line operation. Because it is a hollow structure and made of composite insulating materials, it is not only light in weight, easy to install, High pressure resistance, high strength, and large expansion range (the length of the pole used for the chain lock is within

Left and right), economical and practical, and improve the safety factor of live work and the work efficiency of live work.

Description of drawings

Accompanying drawing is the structural representation of the utility model.

In the figure: 1. cross bar, 2. arc connector, 3. chain lock, 4. card slot.

Detailed ways

In conjunction with accompanying drawing, provide the embodiment of the present utility model as follows:

As shown in the figure: the insulating cross arm described in the utility model is composed of a cross bar 1, an arc-shaped connector 2, a chain lock 3 and a card slot 4. The cross bar 1 is a circular hollow structure, made of composite insulating material, thick 5mm, diameter 50mm, length 1700mm, withstand voltage 45KV, load-bearing up to 70kg, all comply with the "Electricity Safety Regulations". The arc-shaped connector 2 is made of insulating material, and is sleeved on the middle part of the cross bar 1, and its arc coincides with the semi-circular arc of the electric pole. Chain locks 3 are respectively fixedly connected to the body of the arc connector 2 for fixed connection with the electric pole. Both ends of the cross bar 1 are respectively provided with slots 4 for fixing the wires. The slots 4 are also made of composite insulating materials, and a lock plate is arranged at the upper end thereof. When in use, the wires are put into the slots 4 and fixed with the lock plate. Just can prevent lead wire from slipping from draw-in groove 4, further improve the safety factor of operation and the reliability of power supply.

When in use, use a bucket arm truck to install this insulating cross arm at the position about 400mm-600mm above the iron cross arm that needs to be replaced, so that the arc-shaped part of the arc-shaped connector 2 is close to the arc surface of the pole, and is closed with a chain lock. Tightly fix it, put the wire into the insulating slot with the arm truck, and then replace the cross arm.

Claims (2)

1. insulator crossarm, comprise cross bar (1), it is characterized in that: described cross bar (1) is circular hollow structure, the employing composite insulating material is made, be provided with arc connector (2) in the middle part of described cross bar (1), on the cross bar (1) of described arc connector (2) both sides, be fixedly connected with chain lock (3) respectively and be used for fixedlying connected, be respectively arranged with draw-in groove (4) at the both sides end of described cross bar (1) and be used for fixing lead with electric pole.

2. insulator crossarm according to claim 1 is characterized in that: the upper end at described draw-in groove (4) is provided with clamp.

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