CN2692807Y - Thunder prevention pole isolator for overhead isolated cable - Google Patents
Thunder prevention pole isolator for overhead isolated cable Download PDFInfo
- Publication number
- CN2692807Y CN2692807Y CN 200420021683 CN200420021683U CN2692807Y CN 2692807 Y CN2692807 Y CN 2692807Y CN 200420021683 CN200420021683 CN 200420021683 CN 200420021683 U CN200420021683 U CN 200420021683U CN 2692807 Y CN2692807 Y CN 2692807Y
- Authority
- CN
- China
- Prior art keywords
- insulated
- insulator
- arc
- insulated cable
- upper flange
- 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 - Lifetime
Links
Images
Landscapes
- Insulators (AREA)
Abstract
The utility model relates to a thunder prevention pole isolator for overhead isolated cables, which comprises an insulator body, an upper and a lower flanges, a discharging ring, an arc-guiding plate, a clamping wire connecting clamp and an insulated cover, wherein the clamping wire connecting clamp is assembled on the top of the upper flange through a bolt provided with a pressure spring to make an insulated cable tightly pressed between the bottom of the clamping wire connecting clamp and the upper flange. The insulated cover is covered to the discharging ring part from the top of the clamping wire connecting clamp. In addition, the part of the insulated cable, which is positioned at the pole insulator part, is a bare wire; both ends of the bare wire are coated with insulating tape and the middle is coated with an aluminum coating belt. On one hand, the utility model makes the parts of insulated conductors in the neighborhood of the insulator bare according to the mechanism that the insulated conductors are struck by thunder to break. On the other hand, the utility model makes the arc root of an industrial frequency electric arc shifted or fixed between the discharging ring and the arc-guiding plate through the discharging ring on the upper flange of the thunder prevention pole isolator and the arc-guiding plate fixed on the lower flange; the energy of the thunderstruck short circuit electric arc is shifted from the conductors to protect the insulated cable against being damaged by thunder stroke and to ensure the safe running of overhead insulated power distribution networks.
Description
Technical field
The utility model relates to a kind of post insulator that is used for overhead distribution, especially relates to a kind of lightning protection pillar insulator that is used for aerial insulated cable, effectively prevents lightning-caused breaking, guarantees the safe operation of overhead insulating power distribution network.
Background technology
Cause the overhead distribution fault in order to reduce external causes such as trees, birds, accumulated snow, improve power supply reliability.The insulating rate of China's big city 10kV overhead transmission line is quite high, and the insulating of 10kV overhead transmission line has become development trend.
Insulated conductor has solved corridor that plain conductor can't resolve and safety problem, compares with cable, reduced investment, builds soon, and advantage is fairly obvious.But problem such as open type connected mode has not only influenced the rack security of operation and has seriously hindered the popularization of 10kV overhead transmission line insulating work between lightning-caused breaking, cable and overhead wire.
The thunderbolt resistance characteristics of insulated conductor has been compared obviously different with plain conductor.When direct lightning strike or lightning induced voltage acted on plain conductor and cause insulator arc-over, lasting power frequency short circuit current electric arc moved to deviating from the power supply direction along lead under electrodynamic effect, can the serious burn lead.Insulated conductor is then different.As shown in Figure 1, existing insulated conductor 1 ' is installed on the post insulator (model is PS-15), and this post insulator comprises insulator body 8 ' and is installed in the lower flange 7 ' of its underpart.Lightning overvoltage at first punctures wire insulation and then causes insulator arc-over, breakdown insulating barrier is a pin hole shape, the power frequency short circuit current electric arc that continues is subjected to the anti-coagulating action that insulate on every side, the arc root can only burn at the pin hole place, will be at extremely short time inside conductor by neat blowing, the thunderbolt loss of power accident takes place, thereby the safe operation of power distribution network in serious threat.
Therefore, the problem of insulated conductor lightning-caused breaking must be properly settled, the safety of overhead insulating power distribution network could be guaranteed.
Summary of the invention
It is a kind of for the 10kV suspended insulated guide wire provides the most basic post insulator that prevents lightning-caused breaking that the purpose of this utility model is to provide, thereby promote and optimize the insulation of 10kV overhead transmission line, improves the reliability and the fail safe of power supply.
A kind of lightning protection pillar insulator that is used for aerial insulated cable provided by the utility model, comprise insulator body and be fixedly connected on the upper and lower flange at these insulator body two ends respectively, be characterized in: it also comprises discharge ring, run-on tab, clamped binding clip and insulating cover, and wherein: described discharge ring is nested on the described upper flange; Described run-on tab is fixed on the bottom of lower flange; The bolts assemblies of described clamped binding clip by stage clip is housed is pressed between the bottom and upper flange of this clamped binding clip described insulated cable at the top of upper flange, and by described insulating cover from its main header casing to described discharge ring.
The insulated cable that the utility model also provides a kind of and above-mentioned post insulator to be used is characterized in: this insulated cable is a bare wire in the part that is positioned at described post insulator place, and at the two ends of this bare wire coated insulation adhesive tape, the middle aluminium armor tape that coats.
Adopted above-mentioned technical solution; that is: one side is according to the mechanism of insulated conductor lightning-caused breaking; with near the local bare wireization of the insulated conductor the insulator; on the other hand by run-on tab fixing on discharge ring on the lightning protection pillar insulator upper flange and the lower flange; power frequency arc arc root is shifted or be fixed on and discharge between ring and the run-on tab; thunderbolt short circuiting arc energy was shifted from lead in the extremely short time; thereby the protection insulated cable is avoided the thunderbolt injury, guarantees the safe operation of overhead insulating power distribution network.
Description of drawings
Fig. 1 is the structural representation of existing post insulator (model is PS-15);
Fig. 2 is the stereochemical structure exploded view of the utility model lightning protection pillar insulator.
Embodiment
As shown in Figure 2, the utility model promptly is used for the lightning protection pillar insulator of aerial insulated cable, comprises insulator body 8, upper flange 5, lower flange 7, discharge ring 2, run-on tab 6, clamped binding clip 4 and insulating cover 3.Mucilage binding is in upper flange 5, lower flange 7 respectively at the two ends of insulator body 8, and discharge ring 2 is nested on the upper flange 5.
Clamped binding clip 4 is a kind of universal products, is assemblied in the top of upper flange 5 by the bolt 41 that stage clip is housed.
Run-on tab 6 places lower flange 7 bottoms.
When installing at the scene, with near the local bare wireization of insulated cable 1 insulator body 8, and at bare wire end bag insulating tape, middle wrapping aluminium armor tape, by clamped binding clip 4 insulated cable 1 is pressed between clamped binding clip 4 and the upper flange 5, guarantee that contact is good, put insulating cover 3 at last.
Operation principle of the present utility model:
When electrical network normally in service, the exposed live metal of 3 pairs of insulated cables 1 of insulating cover has partly carried out insulating protection, has prevented the infringement of foreign matter to electrical network.When being struck by lightning; because near insulated cable 1 part the utility model insulator is by bare wireization; power frequency arc arc root is transferred on the special discharge ring 4 at an easy rate; and at the starting arc between ring 4 and the run-on tab 6 that discharges; thunderbolt short circuiting arc energy was shifted from lead in the extremely short time, thereby guardwire avoids burn.
Claims (2)
1. lightning protection pillar insulator that is used for aerial insulated cable, comprise insulator body (8) and be fixedly connected on the upper and lower flange (5,7) at this insulator body (8) two ends respectively, it is characterized in that: it also comprises discharge ring (2), run-on tab (6), clamped binding clip (4) and insulating cover (3), wherein:
Described discharge ring (2) is nested on the described upper flange (5);
Described run-on tab (6) is fixed on the bottom of lower flange (7);
Described clamped binding clip (4) is assemblied in the top of upper flange (5) by the bolt (41) that stage clip is housed, described insulated cable (1) is pressed between the bottom and upper flange (5) of this clamped binding clip (4), and by described insulating cover (3) from its main header casing to described discharge ring (2).
2. insulated cable that is used with the described post insulator of claim 1, it is characterized in that: this insulated cable (1) is a bare wire in the part that is positioned at described post insulator place, and at the two ends of this bare wire coated insulation adhesive tape, the middle aluminium armor tape that coats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420021683 CN2692807Y (en) | 2004-04-07 | 2004-04-07 | Thunder prevention pole isolator for overhead isolated cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420021683 CN2692807Y (en) | 2004-04-07 | 2004-04-07 | Thunder prevention pole isolator for overhead isolated cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2692807Y true CN2692807Y (en) | 2005-04-13 |
Family
ID=34770039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420021683 Expired - Lifetime CN2692807Y (en) | 2004-04-07 | 2004-04-07 | Thunder prevention pole isolator for overhead isolated cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2692807Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308967C (en) * | 2004-04-07 | 2007-04-04 | 上海电瓷厂 | Lightening column insulator of overhead insulated cable |
-
2004
- 2004-04-07 CN CN 200420021683 patent/CN2692807Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308967C (en) * | 2004-04-07 | 2007-04-04 | 上海电瓷厂 | Lightening column insulator of overhead insulated cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201075637Y (en) | Puncture type lightning protection equipment for preventing aerial insulated wire lightning stroke yarn cutting | |
| CN203386547U (en) | Integrated fixed external series gap self-disengaging metal oxide lightning arrester insulators | |
| CN101174497A (en) | Lightning protection supporting insulator and insulated cable used with it | |
| CN201307473Y (en) | Lightning protector for 10 kV line | |
| CN104882876A (en) | Extra-high voltage DC grounding electrode circuit protection system | |
| CN106451084A (en) | Transformer station combined protective electrical appliance | |
| CN101699573A (en) | Lightning arrester insulator for overhead wire insulated conductor | |
| CN201177988Y (en) | Lightning-proof overhead insulated wire | |
| CN202650738U (en) | Electric discharge clamping porcelain insulator | |
| CN2692807Y (en) | Thunder prevention pole isolator for overhead isolated cable | |
| CN1308967C (en) | Lightening column insulator of overhead insulated cable | |
| CN201663021U (en) | Bidirectional lightning protection pillar insulator | |
| CN204012185U (en) | The multi-functional lightning arrester of a kind of overhead transmission line adjustable clearance | |
| CN202102814U (en) | Porcelain insulator for preventing insulated conductor breakage caused by lightning stroke | |
| CN206116880U (en) | Become platform combination formula protection electrical apparatus | |
| CN103971865A (en) | Discharge gap cross-arm insulator | |
| CN211606057U (en) | Bidirectional lightning protection and disconnection protection device for insulated conductor | |
| CN200944334Y (en) | Column type porcelain insulator of discharging clamp line | |
| CN101105991A (en) | Penetration type lightning protection metal fittings for preventing breaking of suspended insulated guide wire by lighting strike | |
| CN2847475Y (en) | Metal oxide lightning arrester with external series gap for protective insulation conductor | |
| CN1290241C (en) | Arc tight punctured anchor clamp for preventing broken wire of aerial insulated conductor caused by lightning strike | |
| CN201345261Y (en) | Overhead insulated conductor lightning protection hardware | |
| CN202076058U (en) | Straight-line tower lightning protection device with 35-kilovolt circuit | |
| CN201629187U (en) | Lightning prevention insulator of power transmission lines | |
| CN205565709U (en) | Intelligence remote control prevents built on stilts insulation protection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI ELECTRIC PORCELAIN PLANT; PATENTEE Free format text: FORMER OWNER: CHEN WEIMING; PATENTEE Effective date: 20060707 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20060707 Address after: 200241 No. 4299, Lane 1, Wu Wu Road, Shanghai Co-patentee after: Shanghai Electric Power Corporation Patentee after: Shanghai Electric-Porcelain Works Address before: 200233 room 1, No. 567, Lane 202, Xuhui District, Shanghai, Guilin Road Co-patentee before: Zhu Ming Patentee before: Chen Weiming |
|
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20040407 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |