CN201170978Y - Lightning protection post column insulator - Google Patents
Lightning protection post column insulator Download PDFInfo
- Publication number
- CN201170978Y CN201170978Y CNU2008200666366U CN200820066636U CN201170978Y CN 201170978 Y CN201170978 Y CN 201170978Y CN U2008200666366 U CNU2008200666366 U CN U2008200666366U CN 200820066636 U CN200820066636 U CN 200820066636U CN 201170978 Y CN201170978 Y CN 201170978Y
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- Prior art keywords
- tension seat
- starting rod
- pillar insulator
- fixed
- line ball
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Abstract
The utility model discloses a lightningproof pillar insulator, which relates to a lightningproof device. The lightningproof pillar insulator is characterized in that: an insulating shell (1) is covered on a tension block (2) and a wireholder (3); wherein, both the wireholder (3) and a steel foot (7) are fixed at both ends of an epoxy extraction rod (5); a synthetical gasket (6) is welded in the middle of the epoxy extraction rod (5); both the tension block (2) and the wireholder (3) are fixed on an insulated wire; an upper and a lower starting rods (4A, 4B) are respectively fixed on the wireholder (3) and the steel foot (7); and the steel foot (7) is fixed on a crossarm through a screw (7.3) and a nut. By integrating the pillar insulator and a flash guard hardware into a whole, the lightningproof pillar insulator of the utility model has puncture energizing function, good insulating performance and antifouling property. Besides, the lightningproof pillar insulator is characterized by good performance characteristic, reliable performance, economic applicability, and convenient and reliable construction. Therefore, the lightningproof pillar insulator is suitable for 10kV-overhead insulating distribution lines, thus avoiding lightning strike breakdown of the insulating lines.
Description
Technical field
The utility model relates to a kind of lightning protection equipment, relates in particular to a kind of lightning protection pillar insulator; Specifically, relate to the insulator that a kind of 10kV overhead insulating distribution line prevents lightning-caused breaking.
Background technology
Insulated conductor has solved corridor and safety problem that plain conductor cann't be solved.Compare with cable, the insulated conductor reduced investment is built soon, and advantage is fairly obvious; But the lightning-caused breaking problem is outstanding.Repeatedly insulated conductor lightning-caused breaking accident has appearred in the whole nation, have in addition 10kV and 35kV plain conductor the lightning-caused breaking accident has also appearred.Interrelated data shows that insulated conductor is in operation, and its total failare number is 15.3% of a plain conductor fault sum, and number of faults descends greatly; Wherein the insulated conductor lightning strike accident accounts for 36.8% of total accident number, and the lightning-caused breaking rate is 96.8%.This shows that lightning-caused breaking is a major reason of insulated conductor interruption of service.
Japan reaches a conclusion in the research of early seventies: the insulated conductor thunderbolt must be broken.Therefore, the lightning-caused breaking problem must be properly settled, the safe operation of overhead insulating power distribution network could be guaranteed.The lightning protection measures that adopts has the overhead ground wire of installation, puncture property arc-preventing metal utensil and zinc oxide arrester etc. at present, also has other similar lightning protection pillar insulator on probation on the line, but exists various problems, is difficult to form effective measures.
Summary of the invention
The purpose of this utility model just is to overcome the shortcoming and defect that existing lightning protection measures exists, and a kind of lightning protection pillar insulator (abbreviation insulator) is provided.This lightning protection pillar insulator can reduce the tripping rate with lightning strike of circuit when effectively preventing the lightning-caused breaking accident, improve the reliability of power supply.
Order of the present utility model is achieved in that
The utility model comprises insulating cover, line ball piece, tension seat, starting rod, epoxy spike pulling, synthetic overcoat and steel pin etc.Its special character is that this insulator and arc-preventing metal utensil unite two into one, and can solve insulation broken string thunderbolt problem effectively.
Tension seat and steel pin are fixed on the epoxy spike pulling two ends, form the main part of this insulator, bear mechanical load; Synthetic overcoat die casting epoxy spike pulling surface between tension seat and steel pin forms two big cluster parachutes and a little full skirt, provides necessary creepage distance to protect epoxy spike pulling not to be subjected to the influence of external environment simultaneously; Puncture is connected with the insulated conductor heart yearn line ball piece with tension seat, by screw means insulated conductor is fixed; Starting rod is fixed on the pre-designed screw of tension seat and steel pin by screw, can closely contact with the steel pin with tension seat; The starting rod that is fixed on tension seat connects with the insulated conductor heart yearn, forms high-field electrode, and the starting rod that is fixed on the steel pin forms low-field electrode; Be an air gap between the high and low pressure electrode, be mainly used to provide lightning stroke flashover passage and arc discharge passage, its operation voltage is lower and can be prior to action before the insulator body flashover than insulating body; Line ball piece, tension seat and starting rod high-field electrode are with lead heart yearn equipotential, respectively with insulating cover and insulating barrier insulation.
As shown from the above technical solution, when 10kV overhead insulating power distribution network was subjected to direct lightning strike or induction thunder, the air gap that has starting rod to provide can be moved between insulator arc-over, and the lightning stroke flashover passage is provided; Can be fixed on the high-low pressure electrode that starting rod provides at the arc root of power frequency arc of setting up on the lightning stroke flashover passage or single-phase short circuit current, can not burn even blow insulated conductor.
The utlity model has following advantage and good effect:
1, satisfies the line post insulator of GB regulation and every requirement of gold utensil, post insulator and arc-preventing metal utensil are united two into one, have economy and practicality.
2, synthetic overcoat is made by silicon rubber, has good insulation performance performance and antifouling property.
3, have puncture energising function, do not need the stripping of insulatin layer, avoid heart yearn water inlet and corrosion, easy construction is reliable.
4, have good operating characteristics, starting rod can provide repeatedly the ablation of power frequency arc, dependable performance.
5, be applicable to 10kV overhead insulating distribution line, prevent insulated conductor lightning-caused breaking accident.
Description of drawings
Fig. 1 is the utility model structure chart;
Fig. 2 is the insulating cover structure chart;
Fig. 3 is the line ball block structural diagram;
Fig. 4 is the tension seat structure chart;
Fig. 5 is the starting rod structure chart;
Fig. 6 is epoxy spike pulling and synthetic jacket structure figure;
Fig. 7 is steel leg structure figure.
Wherein:
The 1-insulating cover;
1.1-wire guide; 1.2-starting rod hole; 1.3-clip.
2-line ball piece;
2.1-line ball piece ratchet; 2.2-line ball piece screw.
The 3-tension seat;
3.1-screw rod; 3.2-tension seat ratchet; 3.3-tension seat screw;
3.4-tension seat interface.
The 4-starting rod; The last starting rod of 4A-; Starting rod under the 4B-;
4.1-starting rod screw; 4.2-contact-making surface; 4.3-striking head;
4.4-insulating barrier.
The 5-epoxy spike pulling.
6-synthesizes overcoat;
6.1-big full skirt; 6.2-little full skirt.
7-steel pin;
7.1-steel pin interface; 7.2-steel pin screw; 7.3-screw rod.
Embodiment
Illustrate below in conjunction with accompanying drawing and the detailed example of enforcement:
One, general structure
As Fig. 1, the utility model comprises insulating cover 1, line ball piece 2, tension seat 3, starting rod 4, epoxy spike pulling 5, synthetic overcoat 6 and steel pin 7;
Insulating cover 1 covers on line ball piece 2 and the tension seat 3, plays insulation and prevents the influence of external environment to gold utensil;
Upper and lower starting rod 4A, 4B are separately fixed on tension seat 3 and the steel pin 7;
Operation principle of the present utility model is:
The lightning overvoltage amplitude height of 10kV overhead insulating distribution line, discharge time is short, and high voltage can puncture the insulating barrier of insulated conductor, makes insulator generation flashover, forms power frequency continued flow and blow insulated conductor on the lightning stroke flashover passage.
The line ball piece 2 of lightning protection pillar insulator and tension seat 3 puncture fixed insulation leads, ratchet connects the insulated conductor heart yearn and obtains high potential; The striking of starting rod 4 4.3 is fixed on the tension seat 3 by screw, forms equipotential with the insulated conductor heart yearn, and the low-field electrode of starting rod 4 is fixed on the steel pin 7 by screw.Air gap 50% discharge voltage of (striking 4.3) is lower than 50% discharge voltage of edge body because starting rod 4 high-low pressure electrodes, and action is preferential.Circuit is subjected to responding to thunder or direct lightning strike and voltage when raising, and the air gap of starting rod 4 high-low pressure electrodes can be at first breakdown and form the lightning stroke flashover passage.Two-phase or three lightning stroke flashovers take place on same shaft tower, and power frequency arc on starting rod 4 lightning stroke flashover passages, arc root are fixed in the striking 4.3, can cut off power frequency arc by circuit breaker, and insulated conductor can not be blown; Form capacitance current when single-phase flashover takes place on the shaft tower on the lightning stroke flashover passage, electric arc arc root is fixed in the striking 4.3, can allow arc extinction by arc suppression coil, can not blow insulated conductor.
Two, each functional block structure
1, insulating cover 1
As Fig. 2, be provided with two wire guides 1.1 and starting rod hole 1.2 at the sidewall of insulating cover 1, insulated conductor and starting rod 5 are passed; Be provided with clip 1.3 in wire guide 1.1 lower edge, insulating cover 1 be fixed on insulated conductor, line ball piece 2 and the tension seat 3 by clip 1.3.
Insulating cover 1 is made by the silicon rubber synthetic material, has good insulation performance performance, ageing resistace and fire resistance.Clip 1.3 can waterproof.
2, line ball piece 2 and tension seat 3
As Fig. 3, line ball piece 2 is a kind of side is had two symmetrical line ball piece screws 2.2 by the slick and sly connection of four sections camber lines, front the right and left Al alloy blocks, upper surface is level and smooth, and the lower surface pars intermedia is divided into arc surface, and arc surface is provided with 20 line ball piece ratchets 2.1.
As Fig. 4, tension seat 3 is a kind of aluminium alloy bodies that comprise the upper and lower;
Be made of four circular arcs around tension seat (3) top, the right and left is provided with the screw rod 3.1 of two symmetries, and pars intermedia is divided into arc surface, and arc surface is provided with 20 tension seat ratchets 3.2;
It is cylindric that the bottom is, and end face has tension seat interface 3.4, and there are two tension seat screws 3.3 side.
As Fig. 1,3,4, line ball piece 2 is used with tension seat 3: line ball piece ratchet 2.1 is connected the core of lead with tension seat ratchet 3.2 puncture insulating barriers, line ball piece screw 2.2 is enclosed within on the tension seat screw rod 3.1, by clamp nut insulated conductor is fixed, and obtains high potential simultaneously.
Tension seat interface 3.4 and steel pin interface 7.1 are separately fixed at the two ends up and down of epoxy spike pulling 5, form the insulator main part, and mechanical load is provided;
3, starting rod 4
As Fig. 1, starting rod 4 comprises starting rod 4A and following starting rod 4B, is respectively the high and low pressure electrode.
As Fig. 5, last starting rod 4A is provided with starting rod screw 4.1, contact-making surface 4.2, striking 4.3 and insulating barrier 4.4.
Contact-making surface 4.2 is attached to tension seat 3 sides and constitutes high-field electrode; Starting rod screw 4.1 and 3.3 alignment of tension seat screw are fixed with screw; 4.4 of insulating barriers insulate and prevent that gold utensil is subjected to the influence of external environment.
As Fig. 1, following starting rod 4B is the same with last starting rod 4A structure, but the naked layer, and its contact-making surface is connected on and constitutes low-field electrode above the steel pin 7.
Two striking heads of last starting rod 4A and following starting rod 4B are relative, and lightning stroke flashover passage and arc discharge passage are provided.
4, epoxy spike pulling 5 and synthetic overcoat 6
As Fig. 1,6,
Epoxy spike pulling 5 is a kind of parts commonly used, is made by epoxy resin impregnated glass fibre, and the listing product is arranged;
5, the steel pin 7
As Fig. 1,7, steel pin 7 is made by cast steel, and top is divided into columned steel pin interface 7.1, and there are two steel pin screws 7.2 side, is used for fixing starting rod 4B down; The bottom is divided into columned screw rod 7.3, is furnished with a nut and two pads, is used for insulator is fixed on the shaft tower cross-arm, is tightened by nut.
6, tension seat interface 3.4 and steel pin interface 7.1 are fixed on the two ends of epoxy spike pulling 5, form the insulator main part, and mechanical load is provided; Synthetic overcoat 6 die casting provide necessary creepage distance and prevent that excellent core is subjected to the influence of external environment at epoxy spike pulling 5 mid portions.
Claims (5)
1, a kind of lightning protection pillar insulator is characterized in that:
Comprise insulating cover (1), line ball piece (2), tension seat (3), starting rod (4), epoxy spike pulling (5), synthetic overcoat (6) and steel pin (7);
Insulating cover (1) covers on line ball piece (2) and the tension seat (3);
Tension seat (3) and steel pin (7) are fixed on epoxy spike pulling (5) two ends, and synthetic overcoat (6) die casting is in the middle of epoxy spike pulling (5);
Line ball piece (2) and tension seat (3) puncture fixed insulation lead;
Upper and lower starting rod (4A, 4B) is separately fixed on tension seat (3) and the steel pin (7);
Steel pin (7) is fixed on the cross-arm by screw rod (7.3) and nut.
2, by the described a kind of lightning protection pillar insulator of claim 1, it is characterized in that:
Sidewall at insulating cover (1) is provided with two wire guides (1.1) and starting rod hole (1.2); Be provided with clip (1.3) in wire guide (1.1) lower edge.
3, by the described a kind of lightning protection pillar insulator of claim 1, it is characterized in that:
Line ball piece (2) is a kind of side by the Al alloy block that four sections camber lines slick and slyly connect, front the right and left has two symmetrical line ball piece screws (2.2), and upper surface is level and smooth, and the lower surface pars intermedia is divided into arc surface, and arc surface is provided with line ball piece ratchet (2.1);
4, by the described a kind of lightning protection pillar insulator of claim 1, it is characterized in that:
Tension seat (3) is a kind of aluminium alloy body that comprises the upper and lower;
Be made of four circular arcs around tension seat (3) top, the right and left is provided with the screw rod (3.1) of two symmetries, and pars intermedia is divided into arc surface, and arc surface is provided with tension seat ratchet (3.2);
It is cylindric that the bottom is, and end face has tension seat interface (3.4), and there are two tension seat screws (3.3) side.
5, by the described a kind of lightning protection pillar insulator of claim 1, it is characterized in that:
Starting rod (4) comprises last starting rod (4A) and the following starting rod (4B) that structure is identical;
Last starting rod (4A) is provided with starting rod screw (4.1), contact-making surface (4.2), striking head (4.3) and insulating barrier (4.4); Contact-making surface (4.2) is attached in tension seat (3) side; Starting rod screw (4.1) and tension seat screw (3.3) alignment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200666366U CN201170978Y (en) | 2008-04-24 | 2008-04-24 | Lightning protection post column insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200666366U CN201170978Y (en) | 2008-04-24 | 2008-04-24 | Lightning protection post column insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201170978Y true CN201170978Y (en) | 2008-12-24 |
Family
ID=40210029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200666366U Expired - Fee Related CN201170978Y (en) | 2008-04-24 | 2008-04-24 | Lightning protection post column insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201170978Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024543A (en) * | 2010-12-28 | 2011-04-20 | 大连法伏安电器有限公司 | Composite insulator support fixing gap line type arrester |
| CN102087894A (en) * | 2011-01-13 | 2011-06-08 | 滁州天成有机硅高分子材料有限公司 | Lightning-proof composite insulator |
| CN102354587A (en) * | 2011-08-09 | 2012-02-15 | 王哲斐 | Lightning protection suspension insulator of contact network |
| CN102354588A (en) * | 2011-08-09 | 2012-02-15 | 王哲斐 | Lightning protection supporting insulator for contact network |
| CN103545061A (en) * | 2012-07-09 | 2014-01-29 | 国家电网公司 | Discharge clamping porcelain insulator |
| CN112292792A (en) * | 2018-05-30 | 2021-01-29 | 拜耳沃克有限公司 | Pollution protection for high-voltage insulator |
-
2008
- 2008-04-24 CN CNU2008200666366U patent/CN201170978Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102024543A (en) * | 2010-12-28 | 2011-04-20 | 大连法伏安电器有限公司 | Composite insulator support fixing gap line type arrester |
| CN102024543B (en) * | 2010-12-28 | 2016-01-13 | 大连法伏安电器有限公司 | Composite insulator support fixing gap line type arrester |
| CN102087894A (en) * | 2011-01-13 | 2011-06-08 | 滁州天成有机硅高分子材料有限公司 | Lightning-proof composite insulator |
| CN102354587A (en) * | 2011-08-09 | 2012-02-15 | 王哲斐 | Lightning protection suspension insulator of contact network |
| CN102354588A (en) * | 2011-08-09 | 2012-02-15 | 王哲斐 | Lightning protection supporting insulator for contact network |
| CN103545061A (en) * | 2012-07-09 | 2014-01-29 | 国家电网公司 | Discharge clamping porcelain insulator |
| CN112292792A (en) * | 2018-05-30 | 2021-01-29 | 拜耳沃克有限公司 | Pollution protection for high-voltage 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081224 Termination date: 20100424 |