CN2567741Y - Anti-pollution disk-shape suspension porcelain insulator - Google Patents
Anti-pollution disk-shape suspension porcelain insulator Download PDFInfo
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- CN2567741Y CN2567741Y CN 02253149 CN02253149U CN2567741Y CN 2567741 Y CN2567741 Y CN 2567741Y CN 02253149 CN02253149 CN 02253149 CN 02253149 U CN02253149 U CN 02253149U CN 2567741 Y CN2567741 Y CN 2567741Y
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Abstract
The utility model discloses an anti-pollution disc-shaped hanging type porcelain insulator which comprises a metal cap, an insulating porcelain element and steel feet. The utility model has a design gist that the insulating porcelain element is of a three-layer umbrella skirt structure, and a middle umbrella skirt is a small umbrella skirt. The utility model has the advantages of good pollution flashover resistant performance and good rain flashover resistant performance, the artificial pollution flashover voltage of the utility model is enhanced within 46.2% and 72.5% of the artificial pollution flashover voltage of ordinary anti-pollution disc-shaped hanging type porcelain insulators under identical foul conditions, the utility model is especially suitable for heavy polluted areas, and in addition, connecting hardware and the structural height of the utility model is as same as the connecting hardware and the structural height of ordinary anti-pollution disc-shaped hanging type porcelain insulators, products of the utility model can be exchanged, and the utility model is suitable for not only new built lines, but also the change of ole lines.
Description
The utility model relates to High-Voltage Insulation substring element, specifically resistant suspension disc insulator.
The resistant suspension disc insulator is applicable to interchange overhead power line, transformer station and electrification railway contact net suspension or tensioning lead and the place of effectively insulating with shaft tower.The resistant cap and pin insulator that uses is made up of dish type insulating porcelain piece, metal cap and steel pin now, and insulating porcelain piece wherein is upper and lower two-layer umbrella skirt construction.Owing to there are problems such as creepage distance is little, the full skirt design is very unreasonable, so this kind product pollution flashover voltage is low, when hanging use, the ice sudden strain of a muscle takes place easily also, can only reach the requirement of three grades of regional lower limits of filth.Though can strengthen creepagely if increase the insulator sheet number of insulator string, but can be subjected to the restriction of tower structure than distance.Environmental pollution now is on the rise, and also can run into some catastrophic thick fog weather sometimes.The anti-pollution characteristic that how to improve the resistant cap and pin insulator has become the difficult problem that affiliated industry technology personnel capture.
The purpose of this utility model just provides a kind of resistant suspension disc insulator that increases creepage distance, improves pollution flashover voltage.
The purpose of this utility model is achieved in that designed resistant suspension disc insulator, includes metal cap, and insulating porcelain piece and steel pin, insulating porcelain piece are three layers of umbrella skirt construction.
So the suspension disc insulator of design by increasing one deck full skirt, has strengthened the creepage distance of dish type insulating porcelain piece, and flashover voltage raises, thereby reduces the generation of flashover phenomenon, has improved the resistant sudden strain of a muscle property of insulator.
Be described in further detail the utility model below in conjunction with accompanying drawing.
Fig. 1 is a structural representation of the present utility model.
As shown in Figure 1, the utility model is made up of metal cap 1, insulating porcelain piece 2, steel pin 3, metal cap 1 is in the same place with the cement glue gelling with endoporus with the head of insulating porcelain piece 2 respectively with steel pin 3, and insulating porcelain piece 2 is three layers of umbrella skirt construction, promptly sets up a full skirt 5 in the middle of last full skirt 4 and following full skirt 6.This full skirt 5 is preferably little full skirt, and its diameter is less than the diameter of upper and lower full skirt 4,6.Resistant with further reinforced insulation is dodged, rain dodges performance.
In the utility model, last full skirt 4 diameters of insulating porcelain piece 2 should be greater than the diameter of following full skirt 6.Because the diameter of last full skirt is greater than following full skirt, so in ice and snow weather, the snow-broth that falls from last full skirt can not be dropped in down on the full skirt, thereby avoided the formation of ice bridge, reduce under the ice and snow weather conditions chance of short circuit between full skirt, strengthened the performance that its resistant is dodged.
In the utility model, the diameter of last full skirt 4 is preferably designed as 300-340mm, and the diameter of following full skirt 6 is designed to 280-320mm.Strengthen the diameter of insulator full skirt, the creepage distance of insulator is further strengthened, the performance that resistant is dodged and rain dodges further improves.The full skirt of insulator is preferably made level and smooth no prismatic, utilizes wind and rain to clean naturally like this, makes it have good self-cleaning property.
The utility model resistant is dodged, the rain sudden strain of a muscle is functional, and the artificial filthy flashover voltage of more common resistant suspension disc insulator has improved 46.2-72.5% under identical filthy condition, is specially adapted to the heavy pollution area.In addition, connection gold utensil of the present utility model is identical with common resistant suspension disc insulator with structure height, and product can exchange, and not only is applicable to newly-built circuit, and is applicable to the transformation of old circuit.
Claims (4)
1, a kind of resistant suspension disc insulator includes metal cap (1), and insulating porcelain piece (2) and steel pin (3) is characterized in that insulating porcelain piece (2) is three layers of umbrella skirt construction.
2, resistant suspension disc insulator according to claim 1 is characterized in that the full skirt (5) in the middle of the insulating porcelain piece (2) is little full skirt, and its diameter is less than the diameter of upper and lower full skirt (4,6).
3, resistant suspension disc insulator according to claim 1 is characterized in that the diameter of last full skirt (4) diameter of insulating porcelain piece (2) greater than following full skirt (6).
3, resistant suspension disc insulator according to claim 1 is characterized in that the said diameter of going up full skirt (4) is 300-340mm, and the diameter of following full skirt (6) is 280-320mm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 02253149 CN2567741Y (en) | 2002-08-28 | 2002-08-28 | Anti-pollution disk-shape suspension porcelain insulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 02253149 CN2567741Y (en) | 2002-08-28 | 2002-08-28 | Anti-pollution disk-shape suspension porcelain insulator |
Publications (1)
Publication Number | Publication Date |
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CN2567741Y true CN2567741Y (en) | 2003-08-20 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN 02253149 Expired - Lifetime CN2567741Y (en) | 2002-08-28 | 2002-08-28 | Anti-pollution disk-shape suspension porcelain insulator |
Country Status (1)
Country | Link |
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CN (1) | CN2567741Y (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102208233A (en) * | 2010-11-30 | 2011-10-05 | 苏州电瓷厂有限公司 | Suspension type porcelain insulator for direct-current overhead power transmission line |
CN103021596A (en) * | 2012-12-25 | 2013-04-03 | 河北硅谷化工有限公司 | Manufacturing method of disc suspended composite insulator |
-
2002
- 2002-08-28 CN CN 02253149 patent/CN2567741Y/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102208233A (en) * | 2010-11-30 | 2011-10-05 | 苏州电瓷厂有限公司 | Suspension type porcelain insulator for direct-current overhead power transmission line |
CN103021596A (en) * | 2012-12-25 | 2013-04-03 | 河北硅谷化工有限公司 | Manufacturing method of disc suspended composite insulator |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CX01 | Expiry of patent term |
Expiration termination date: 20120828 Granted publication date: 20030820 |