CN201369284Y - Large creep distance seal terminal - Google Patents
Large creep distance seal terminal Download PDFInfo
- Publication number
- CN201369284Y CN201369284Y CNU2009200321242U CN200920032124U CN201369284Y CN 201369284 Y CN201369284 Y CN 201369284Y CN U2009200321242 U CNU2009200321242 U CN U2009200321242U CN 200920032124 U CN200920032124 U CN 200920032124U CN 201369284 Y CN201369284 Y CN 201369284Y
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- CN
- China
- Prior art keywords
- lead wire
- out wire
- seal terminal
- pole
- lead
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a large creep distance seal terminal. The upper and lower ends of the seal terminal are respectively provided with an upper lead wire and a lower lead wire. An outer cylindrical surface between the upper lead wire and the lower lead wire of the seal terminal is provided with at least 5 circles of umbrella skirts with alternate sizes of outer diameters, thus increasing the creepage distance between the upper lead wire and the lower lead wire, meeting the requirement that the seal terminal maintains higher power frequency withstand voltage and impulse withstand voltage under severe conditions and improving the electric field distribution on the outer surface of the seal terminal, and leading to good insulating capability. The seal terminal can be used under severe environments such as moisture and salt fog and the like equivalent to III level filths, as well as at 3000m above sea level.
Description
Technical field
The utility model belongs to the electric elements technical field, is specifically related to a kind of large distance pole.
Background technology
Pole is that the conductive pieces that vacuum interrupter is relevant with circuit breaker is embedded into simultaneously in the easy cured solid insulating material of this class of epoxy resin and forms pole, makes whole circuit breaker polar become as a whole parts.At present, existing similar pole product, last lead-out wire, down the contour structures between the lead-out wire adopts the cylinder form more, when adverse circumstances such as humidity, salt fog and 3000 meters height above sea levels, shows the problem of gradation for surface pollution, withstand voltage level deficiency.
Summary of the invention
The purpose of this utility model provides a kind of large distance pole, makes pole keep higher power-frequency withstand voltage and impulse withstand voltage under harsh conditions, possesses the good insulation performance ability.
The technical scheme that the utility model adopted is: the large distance pole, pole two ends up and down is respectively arranged with lead-out wire and following lead-out wire, and the alternate full skirt of at least 5 circle external diameter sizes is set on the external cylindrical surface between lead-out wire on the pole and the following lead-out wire.
Feature of the present utility model also is:
The full skirt cutting plane is asymmetric up and down, and the inclination angle, top of cluster parachute is 14 °～21 °, and the inclination angle, bottom of cluster parachute is 5 °～8 °.
The pitch of waves is 2: 1～3: 1 with depth of convolution ratio between the full skirt.
The beneficial effects of the utility model: the alternate cluster parachute of external diameter size is set between lead-out wire on the pole and following lead-out wire, increased the creepage some distance between last lead-out wire and the following lead-out wire, make the creepage distance between lead-out wire, the following lead-out wire be increased to 372 millimeters, under harsh conditions, keep higher power-frequency withstand voltage and impulse withstand voltage thereby satisfy pole, possess the good insulation performance ability.
Description of drawings
Fig. 1 is the structural representation of existing pole;
Fig. 2 is the structural representation of the utility model large distance pole;
Fig. 3 is the left view of Fig. 2.
Among the figure, 1. go up lead-out wire, 2. descend lead-out wire, 3. cluster parachute, 4. pole.
Wherein a is the inclination angle, top of cluster parachute, and b is the inclination angle, bottom of cluster parachute.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Fig. 1 is provided with lead-out wire 1 and following lead-out wire 2 respectively for the structural representation of existing pole, the upper and lower of pole 4, and the outside between last lead-out wire 1 and the following lead-out wire 2 is the face of cylinder.Under the situation of fixed distance between last lead-out wire 1 and the following lead-out wire 2, creepage distance between last lead-out wire 1 and the following lead-out wire 2 can not satisfy in adverse circumstances such as the humidity suitable with III level gradation for surface pollution, salt fogs, and the condition of insulating capacity under 3000 meters height above sea levels.
Structure such as Fig. 2 of the utility model large distance pole, shown in Figure 3, the upper and lower of pole 4 is provided with lead-out wire 1 and following lead-out wire 2 respectively, the alternate full skirt 3 of 5 circle external diameter sizes is set on the outer cylinder between lead-out wire 1 on the pole 4 and the following lead-out wire 2 at interval, full skirt 3 cutting planes are dissymmetrical structure up and down, inclination angle, the top a of cluster parachute 3 is the upper inclined surface of full skirt 3 and the angle of cutting plane, requirement is between 14 °～21 °, inclination angle, the bottom b of cluster parachute 3 is the lower bevel of full skirt 3 and the angle of cutting plane, requirement is between 5 °～8 °, for the crest of avoiding full skirt 3 creepage, between the cluster parachute 3 pitch of waves and depth of convolution ratio be set to 2: 1～between 3: 1.
More than 5 circles, the number of turns is many more at least for the number of turns of cluster parachute 3, and relative insulation effect is good more.
The alternate cluster parachute 3 of at least 5 circle external diameter sizes is set between lead-out wire 1 on the pole 4 and following lead-out wire 2, increased the creepage some distance between last lead-out wire 1 and the following lead-out wire 2, thereby satisfy pole and under harsh conditions, keep higher power-frequency withstand voltage and impulse withstand voltage, and improved the Electric Field Distribution of pole outer surface, possessed the good insulation performance ability.In adverse circumstances such as the humidity suitable with III level gradation for surface pollution, salt fogs, and 3000 meters height above sea levels can be used pole.
Claims (3)
1. large distance pole, comprise pole (4), pole (4) two ends up and down is respectively arranged with lead-out wire (1) and following lead-out wire (2), it is characterized in that: the alternate full skirt (3) of at least 5 circle external diameters sizes is set on the last lead-out wire (1) of pole (4) and the external cylindrical surface between the following lead-out wire (2).
2. large distance pole according to claim 1 is characterized in that: described full skirt (3) cutting plane is asymmetric up and down, and the inclination angle, top of cluster parachute (3) is 14 °～21 °, and the inclination angle, bottom of cluster parachute (3) is 5 °～8 °.
3. large distance pole according to claim 1 and 2 is characterized in that: between the described full skirt (3) pitch of waves and depth of convolution ratio be set to 2: 1～between 3: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200321242U CN201369284Y (en) | 2009-03-06 | 2009-03-06 | Large creep distance seal terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200321242U CN201369284Y (en) | 2009-03-06 | 2009-03-06 | Large creep distance seal terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201369284Y true CN201369284Y (en) | 2009-12-23 |
Family
ID=41488175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200321242U Expired - Fee Related CN201369284Y (en) | 2009-03-06 | 2009-03-06 | Large creep distance seal terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201369284Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201044A (en) * | 2014-09-05 | 2014-12-10 | 洛阳通颖电气有限公司 | Novel embedded pole |
| CN107331570A (en) * | 2017-08-17 | 2017-11-07 | 梅州玉丰特陶科技有限公司 | Interior full skirt Product of Ceramic Vacuum Tubes |
-
2009
- 2009-03-06 CN CNU2009200321242U patent/CN201369284Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201044A (en) * | 2014-09-05 | 2014-12-10 | 洛阳通颖电气有限公司 | Novel embedded pole |
| CN107331570A (en) * | 2017-08-17 | 2017-11-07 | 梅州玉丰特陶科技有限公司 | Interior full skirt Product of Ceramic Vacuum Tubes |
| CN107331570B (en) * | 2017-08-17 | 2019-06-21 | 梅州玉丰特陶科技有限公司 | Interior full skirt Product of Ceramic Vacuum Tubes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20170306 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |