CN207038264U - A kind of outer cabinet-type lightning arrester - Google Patents
A kind of outer cabinet-type lightning arrester Download PDFInfo
- Publication number
- CN207038264U CN207038264U CN201720836412.8U CN201720836412U CN207038264U CN 207038264 U CN207038264 U CN 207038264U CN 201720836412 U CN201720836412 U CN 201720836412U CN 207038264 U CN207038264 U CN 207038264U
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- Prior art keywords
- lightning
- insulator
- pipe
- ball discharge
- arrest
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
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- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
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- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 244000080575 Oxalis tetraphylla Species 0.000 description 1
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Landscapes
- Insulators (AREA)
Abstract
The utility model discloses a kind of outer cabinet-type lightning arrester,Mainly include insulator,Lightning-arrest pipe and wire,The insulator bottom sets backing plate,And backing plate is fixedly connected by bolt with insulator bottom,U-type groove is provided with the top of the insulator,And U-type groove inner bottom part is provided with convex column,The first ball discharge is provided with the top of the convex column,The lightning-arrest bottom of the tube is provided with reducer pipe,Connected between the reducing pipe outer wall and U-type groove inwall by the dottle pin that insulate,And reducer pipe is highly less than U-type groove height,The reducing bottom of the tube is provided with the second ball discharge,And second ball discharge and the first ball discharge it is vertically opposite,The wire outer wall is provided with insulating barrier,The interspersed lightning-arrest pipe of the wire,The utility model is simple in construction,It is safe to use convenient,The service life of insulator can be effectively improved,Lightning-arrest effect is improved simultaneously,And insulator also has self-cleaning effect,The attachment and accumulation of rainwater and debris can effectively be reduced.
Description
Technical field
Lightning arrester technical field is the utility model is related to, specially a kind of outer cabinet-type lightning arrester.
Background technology
Distribution overhead line is the technical way for carrying out long-distance electronic transport both at home and abroad, and general wire erection is fixed on steel
On the iron cross arm pin insulator of reinforced concrete pole.When 10kV overhead bare conductors are by being struck by lightning, lightning overvoltage is along wire to exhausted
The pin insulator surface of edge weak spot, which is discharged cross-arm, to be neutralized, and subsequent power-frequency earthing electric current establishes arcing ground passage, after
Electric protection action open-circuit line breaker (switch) has a power failure, and electromagnetic force caused by disconnection load side makes ground arc elongate drift
And extinguish, the air at insulator recovers to insulate rapidly, and circuit re-switching detects bus without successful reclosing after pressure.That is bare conductor
The arc root of thunderbolt short circuiting arc elongates extinguishing, therefore wire table with the electromagnetic force of circuit breaker trip along conductive line surfaces drift
Only leave slight electric arc burn vestige in face.After suspended insulated guide wire circuit is struck by lightning, lightning overvoltage equally in external insulation most
Cross-arm ground connection is discharged along insulator surface after puncturing the insulating barrier of insulated conductor at the pin insulator notch colligation of weakness,
Because the aluminium core of insulated conductor is wrapped up by insulating barrier, the arc root of short circuiting arc can not produce as bare conductor with breaker actuation
Electromagnetic force drift, thousands of degree high temperature arc roots burn at the pin hole of insulating barrier breakdown all the time, bear the aluminium core wink of wire tension
Between by high-temperature electric arc fuse and break, i.e., insulated overhead conductor by be struck by lightning must break.Overhead transmission line use insulated conductor be for
Prevent bare conductor from accident of human electric shock closely easily occurs apart from Effect of Residential Windows, circuit both sides tree bamboo and woods or greening shade tree etc. occur
Singlephase earth fault, high-rise wire of disorderly throwing produce phase fault etc., if the insulated conductor near pin insulator is divested into one
Section insulating barrier, making electric pole, nearby insulated conductor prevents thunderbolt from must break into bare conductor, and this method is violated and led using insulation again
Original advantage of line；During using arc-preventing metal utensil, because the thunder discharge of arc-preventing metal utensil punctures the volt of gap L 1 and arcing rod gap L 2
The insulator lightning impulse breakdown voltage volt-second characteristic that second characteristic is both needed to and used, which calculates, to be coordinated, and thunder discharge breakdown gap L 1 must
Release lightning current must absolutely be punctured, follow-up power-frequency earthing electric arc must be burnt on arcing rod until being switched off device jump
Lock electromagnetic force is elongated drift and extinguished.Because each circuit capacitance current different in size for being allowed to circuit is also different, every circuit after
Electric protection Graded coordination is different, and each insulator lightning impulse breakdown voltage value is also different and different with model, therefore L1, L2
Gap size amount of calculation is big, and the more difficult control of alignment error, and insulated overhead conductor is still circuit by the thunderbolt phenomenon that must break
One of hang-up of run unit.
Utility model content
The purpose of this utility model is to provide a kind of outer cabinet-type lightning arrester, to solve to propose in above-mentioned background technology
The problem of.
To achieve the above object, the utility model provides following technical scheme：A kind of outer cabinet-type lightning arrester, including it is exhausted
Edge, lightning-arrest pipe and wire, the insulator bottom sets backing plate, and backing plate is fixedly connected by bolt with insulator bottom,
U-type groove is provided with the top of the insulator, and U-type groove inner bottom part is provided with convex column, and first is provided with the top of the convex column
Ball discharge, the lightning-arrest bottom of the tube are provided with reducer pipe, are connected between the reducing pipe outer wall and U-type groove inwall by the dottle pin that insulate
Connect, and reducer pipe is highly less than U-type groove height, the reducing bottom of the tube is provided with the second ball discharge, and the second ball discharge and the
One ball discharge is vertically opposite, and the wire outer wall is provided with insulating barrier, the interspersed lightning-arrest pipe of the wire；
The lightning-arrest pipe includes the upper and lower, and the upper strata bottom setting is fluted, is provided with the top of the lower floor convex
Angle is played, and raised angle fastens with groove, the upper strata is fixedly connected with lower floor by abutted flange, and the abutted flange is with becoming
Footpath pipe is vertically opposite, and the abutted flange bottom is provided with neck, and neck diameter is more than reducing pipe diameter.
Preferably, the insulator surface is coated with one layer of self-cleaning layer, and the self-cleaning layer includes solid adhesion bottom and dredged
Water oleophobic surface layer, and hydrophobic oleophobic surface layer is coated on solid adhesion bottom.
Preferably, it is arranged on lightning-arrest bottom of the tube center at the top of the reducer pipe.
Preferably, at the top of second ball discharge to the first ball discharge bottom spacing between 40mm-50mm.
Compared with prior art, the beneficial effects of the utility model are：The utility model is simple in construction, it is safe to use just
Victory, the service life of insulator can be effectively improved, and insulator also has self-cleaning effect, effectively reduction rainwater and debris is attached
With accumulation, so as to influence insulation effect, in order to which with discharge effect is effectively improved, the utility model is using ball discharge with putting
Spacing between electric ball is between 40mm-50mm, and in order to effectively carry the self-cleaning effect of insulator surface, the utility model is adopted
One layer of self-cleaning layer is coated with used in insulator surface, and self-cleaning layer has solid adhesion bottom and hydrophobic oleophobic combined facing layer to form,
The lightning-arrest pipe of two-layer up and down is used, is utilized simultaneously with later stage convenient disassembly, the utility model in order to which convenient installation is fixed
Abutted flange is fixed.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Fig. 2 is the lightning-arrest tubular construction schematic diagram of the utility model.
Fig. 3 is the utility model self-cleaning coat cross section structure diagram.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1-3 are referred to, the utility model provides a kind of technical scheme：A kind of outer cabinet-type lightning arrester, including insulation
Son 1, lightning-arrest pipe 2 and wire 3, the bottom of insulator 1 sets backing plate 4, and backing plate 4 is fixed by bolt 6 and the bottom of insulator 1 and connected
Connect, the top of insulator 1 is provided with U-type groove 5, and the inner bottom part of U-type groove 5 is provided with convex column 7, and the top of convex column 7 is provided with first
Ball discharge 8, the lightning-arrest bottom of pipe 2 are provided with reducer pipe 9, connected between the outer wall of reducer pipe 9 and the inwall of U-type groove 5 by the dottle pin 10 that insulate
Connect, and the height of reducer pipe 9 is less than the height of U-type groove 5, the bottom of reducer pipe 9 is provided with the second ball discharge 11, and the second ball discharge 11 with
First ball discharge 8 is vertically opposite, and the outer wall of wire 3 is provided with insulating barrier, the interspersed lightning-arrest pipe 2 of wire 3；The letter of the utility model structure
It is single, it is safe to use convenient, the service life of insulator can be effectively improved, while lightning-arrest effect is improved, and insulator also has
Self-cleaning effect, it can effectively reduce the attachment and accumulation of rainwater and debris.
In the utility model, lightning-arrest pipe 2 includes upper strata 12 and lower floor 13, and the setting of the bottom of upper strata 12 is fluted, and lower floor 13 pushes up
Portion is provided with raised angle, and raised angle fastens with groove, and upper strata 12 is fixedly connected with lower floor 13 by abutted flange 14, right
Acting flange 14 and reducer pipe 9 are vertically opposite, and the bottom of abutted flange 14 is provided with neck 15, and the diameter of neck 15 is more than reducer pipe 9
Diameter；Using this design structure, installation effectiveness can be effectively improved and later stage dismounting is quick, while increase lightning-arrest effect.
In the utility model, the surface spraying of insulator 1 has one layer of self-cleaning layer 16, and self-cleaning layer 16 includes solid adhesion bottom 17
With hydrophobic oleophobic surface layer 18, and hydrophobic oleophobic surface layer 18 is coated on solid adhesion bottom 17；, can using this design structure
Effectively improve the self-cleaning effect of insulator surface.
In addition, in the utility model, the top of reducer pipe 9 is arranged on the lightning-arrest bottom centre of pipe 2；The top of second ball discharge 11 is arrived
The bottom spacing of first ball discharge 8 is between 40mm-50mm；Using this design structure, the energy when meeting with thunderbolt can be effectively improved
It is enough quickly to be discharged, reduce the damage to insulator.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of outer cabinet-type lightning arrester, including insulator (1), lightning-arrest pipe (2) and wire (3), it is characterised in that：It is described exhausted
Edge (1) bottom sets backing plate (4), and backing plate (4) is fixedly connected by bolt (6) with insulator (1) bottom, the insulator
(1) top is provided with U-type groove (5), and U-type groove (5) inner bottom part is provided with convex column (7), is provided with the top of the convex column (7)
First ball discharge (8), lightning-arrest pipe (2) bottom are provided with reducer pipe (9), and reducer pipe (9) outer wall is interior with U-type groove (5)
Connected between wall by the dottle pin that insulate (10), and reducer pipe (9) is highly less than U-type groove (5) height, reducer pipe (9) bottom
The second ball discharge (11) is provided with, and the second ball discharge (11) and the first ball discharge (8) are vertically opposite, wire (3) outer wall
It is provided with insulating barrier, the interspersed lightning-arrest pipe (2) of the wire (3)；
The lightning-arrest pipe (2) includes upper strata (12) and lower floor (13), and upper strata (12) bottom sets fluted, the lower floor
(13) top is provided with raised angle, and raised angle fastens with groove, and the upper strata (12) passes through abutted flange with lower floor (13)
(14) it is fixedly connected, the abutted flange (14) and reducer pipe (9) are vertically opposite, and abutted flange (14) bottom is provided with card
Groove (15), and neck (15) diameter is more than reducer pipe (9) diameter.
A kind of 2. outer cabinet-type lightning arrester according to claim 1, it is characterised in that：Insulator (1) the surface spray
One layer of self-cleaning layer (16) is scribbled, the self-cleaning layer (16) includes solid adhesion bottom (17) and hydrophobic oleophobic surface layer (18), and dredges
Water oleophobic surface layer (18) is coated on solid adhesion bottom (17).
A kind of 3. outer cabinet-type lightning arrester according to claim 1, it is characterised in that：Set at the top of the reducer pipe (9)
Put in lightning-arrest pipe (2) bottom centre.
A kind of 4. outer cabinet-type lightning arrester according to claim 1, it is characterised in that：Second ball discharge (11) top
Portion is to the first ball discharge (8) bottom spacing between 40mm-50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720836412.8U CN207038264U (en) | 2017-07-11 | 2017-07-11 | A kind of outer cabinet-type lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720836412.8U CN207038264U (en) | 2017-07-11 | 2017-07-11 | A kind of outer cabinet-type lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207038264U true CN207038264U (en) | 2018-02-23 |
Family
ID=61467356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720836412.8U Active CN207038264U (en) | 2017-07-11 | 2017-07-11 | A kind of outer cabinet-type lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207038264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108797900A (en) * | 2018-05-08 | 2018-11-13 | 中国五冶集团有限公司 | A kind of portable building roof lighting proof strip fixing piece, mounting structure and method |
-
2017
- 2017-07-11 CN CN201720836412.8U patent/CN207038264U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108797900A (en) * | 2018-05-08 | 2018-11-13 | 中国五冶集团有限公司 | A kind of portable building roof lighting proof strip fixing piece, mounting structure and method |
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