CN2922077Y

CN2922077Y - Strong pollution resistive type composite electrical insulator

Info

Publication number: CN2922077Y
Application number: CN 200620035042
Authority: CN
Inventors: 冯长富
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-07-25
Filing date: 2006-07-25
Publication date: 2007-07-11
Anticipated expiration: 2016-07-25

Abstract

The utility model provides a strong pollution resistive type composite electrical insulator comprising a glass fiber core rod, a silicone rubber umbrella shed sleeved on and connected with the glass fiber core rod, a big umbrella and a small umbrella uniformly distributed on the silicone rubber umbrella shed and a connection hardware at both ends of the glass fiber core rod. The utility model is characterized in that the big and small umbrella sheds are respectively provided with an integrated inner umbrella. The utility model further develops the hydrophobic advantage of the silicone rubber, enhances self-cleaning capability and anti-bird capability of the composite insulator and finally enhances the safety and reliability of power network.

Description

Strong anti-pollution type composite insulator

Technical field:

The utility model is relevant with the compound suspension insulator of anti-fouling type in the electric power system transmission facility territory, and is relevant with strong anti-pollution type composite insulator especially.

Background technology:

Suspension insulator is the visual plant of transmission system.In decades, used suspension insulator all is a ceramic insulator on the power network, occurs glass fibre reinforced plastic insulating and silicon rubber compound insulator afterwards again in succession.Operating experience for many years proves that the performance that the silicon rubber compound insulator resistant is dodged is much better than preceding two kinds of insulators, and has realized non-maintaining.Yet, electrical network has used in a large number in the network failure statistics of silicon rubber compound insulator and has found, the flashover that bird pest causes only is lower than lightning stroke flashover, occupy second, its reason one is that the full skirt spacing is less and the arcing short circuit phenomenon that birds droppings causes easily takes place, the 2nd, full skirt is a flexible material, and birds droppings falls and is difficult for bounce-back and splashes and be easy to hang down along the full skirt edge, easily causes the full skirt bridge joint.In addition, because distance is little between the composite insulator full skirt that present electrical network uses, have only about 100mm as the distance between adjacent big full skirt, the inclination angle on full skirt surface is little has only 5～10 ° to be unfavorable for that anti-stagnant ice dodges, rain sudden strain of a muscle and birds droppings evil.

The utility model content:

The purpose of this utility model is in order to overcome above deficiency, a kind of advantage of the silicon rubber hydrophobicity of further making the best use of the advantages is provided, improve the ability of knot certainly of composite insulator, anti-bird pest ability, the final security reliability and strong anti-pollution type composite insulator that realizes improving electrical network.Another purpose of the present utility model is in order to provide a kind of energy to improve the strong anti-pollution type composite insulator of the ability of anti-ice sudden strain of a muscle and rain sudden strain of a muscle.

The purpose of this utility model is achieved like this:

The strong anti-pollution type composite insulator of the utility model, comprise the glass fibre plug, be sleeved on silicon rubber full skirt cover on the glass fibre plug and that be attached thereto, be evenly distributed on big full skirt, little full skirt that the silicon rubber full skirt puts, be positioned at the connection gold utensil at glass fibre plug two ends, it is characterized in that large and small full skirt puts full skirt in the all-in-one-piece is arranged respectively with it.

The inclined angle alpha on above-mentioned large and small full skirt surface is respectively between 25～35 °.

Between above-mentioned adjacent big full skirt apart from S＞300mm.

Compare with existing composite insulator, the utlity model has following advantage:

1, the interior full skirt of all-in-one-piece is with it arranged on the large and small full skirt, increased resistance, increased the security reliability of electrical network greatly;

2, the angle of inclination on full skirt surface is big, has improved the self-cleaning ability on full skirt surface greatly;

3, big full skirt strengthens with distance between big full skirt, has overcome the bridge joint that full skirt causes because of ice, rainwater, island excrement, and for the big full skirt spacing of conventional insulators about 3 times help improving the birds droppings flashover, and ice dodges and the prevention ability of rain sudden strain of a muscle.

Can further the make the best use of the advantages advantage of silicon rubber hydrophobicity of the utility model improves the self-cleaning ability of composite insulator, anti-bird pest ability, and anti-ice dodges and the ability of rain sudden strain of a muscle, has improved the security reliability of electrical network greatly.

Description of drawings:

Fig. 1 is the utility model structural representation.

Fig. 2 is the A-A cutaway view of Fig. 1.

Embodiment:

Referring to Fig. 1, Fig. 2, silicon rubber full skirt cover 3 in mould, HTHP next time property be enclosed within on the glass fibre plug 2 and and closely be bonded on the glass fibre plug by the agent of lotus root connection.Evenly distribute and be enclosed within the silicon rubber full skirt at the large and small full skirt 4 of the silicon rubber of HTHP dip mold moulding and put the silicon rubber binding agent that adopts identical component and be bonded in the silicon rubber full skirt and put and be cured as with it one.Connect two ends that gold utensil 1 is crimped on the glass fibre plug and bear the tensile load of overhead transmission line, simultaneously, gold utensil and the junction that full skirt overlaps at high temperature adopt silicone rubber seal, guarantee that with this plug is not subjected to the evil of soaking of extraneous moisture.

As shown in Figure 1, between the adjacent big full skirt apart from S＞300mm.

As shown in Figure 2, in full skirt, have and be the interior full skirt 5 of one with it.The inclined angle alpha on full skirt surface is about 30 ℃.

This strong anti-pollution type composite insulator that 110KV, 220KV and above electric pressure are used.The grade of looking its line voltage is determined the length and the creep distance of its insulator string.Accomplish safe and reliablely, resistance to soiling is strong.

Claims

1, strong anti-pollution type composite insulator, comprise the glass fibre plug, be sleeved on silicon rubber full skirt cover on the glass fibre plug and that be attached thereto, be evenly distributed on big full skirt, little full skirt that the silicon rubber full skirt puts, be positioned at the connection gold utensil at glass fibre plug two ends, it is characterized in that large and small full skirt puts full skirt in the all-in-one-piece is arranged respectively with it.

2, strong anti-pollution type composite insulator as claimed in claim 1, the inclined angle alpha that it is characterized in that large and small full skirt surface is respectively between 25～35 °.

3, strong anti-pollution type composite insulator as claimed in claim 1 or 2, it is characterized in that between adjacent big full skirt apart from S＞300mm.