CN202102814U - Porcelain insulator for preventing insulated conductor breakage caused by lightning stroke - Google Patents

Porcelain insulator for preventing insulated conductor breakage caused by lightning stroke Download PDF

Info

Publication number
CN202102814U
CN202102814U CN2011202266425U CN201120226642U CN202102814U CN 202102814 U CN202102814 U CN 202102814U CN 2011202266425 U CN2011202266425 U CN 2011202266425U CN 201120226642 U CN201120226642 U CN 201120226642U CN 202102814 U CN202102814 U CN 202102814U
Authority
CN
China
Prior art keywords
insulated conductor
insulator
annex
tab
run
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
Application number
CN2011202266425U
Other languages
Chinese (zh)
Inventor
苑飞龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baoding North China Electric Porcelain and Limited by Share Ltd
Original Assignee
BAODING TANGBEI ELECTRICAL PROCELAIN ELECTRICAL APPLIANCES Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BAODING TANGBEI ELECTRICAL PROCELAIN ELECTRICAL APPLIANCES Co Ltd filed Critical BAODING TANGBEI ELECTRICAL PROCELAIN ELECTRICAL APPLIANCES Co Ltd
Priority to CN2011202266425U priority Critical patent/CN202102814U/en
Application granted granted Critical
Publication of CN202102814U publication Critical patent/CN202102814U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

The utility model discloses a porcelain insulator for preventing insulated conductor breakage caused by lightning stroke, and belongs to the field of lightning protection devices. The scheme adopted by the utility model is that the insulating layer of an insulated conductor is properly peeled off at a fixed point and a metal wire clip is additionally mounted at the point to bear powerflow current, so as to avoid insulated conductor burning; an arc striking discharge clearance is further arranged, in the event of lightning stroke, the powerflow current is guided to a run-on tab at the bottom of a lower mounting seat through an arc striking port of a protecting cover, and the powerflow current can be released to earth through an insulator mounting frame, so as to achieve the purpose of avoiding insulated conductor burnout and insulator burning; besides, the mounted insulating protecting cover can improve power supply reliability and prevent water from flowing into the wire core of the insulated conductor, and an insulation sheath which is further mounted can increase the dry arcing distance of the insulator and further improve the insulating grade of the insulator.

Description

A kind of porcelain insulator that is used to prevent the insulated conductor lightning-caused breaking
Technical field
The utility model relates to the lightning protection device field, particularly a kind of porcelain insulator that is used to prevent the insulated conductor lightning-caused breaking.
Background technology
Cause the overhead distribution fault in order to reduce external causes such as trees, birds, accumulated snow, improve power supply reliability.Developed countries has gradually adopted suspended insulated guide wire from the later stage sixties, and in Japan, overhead distribution is realized insulating basically.China also implements insulating to city overhead distribution net since the eighties and transforms pilot, has accelerated paces from the nineties, and particularly city net, upgrading of rural power grids engineering adopt the circuit of insulation in a large number in recent years.Insulated conductor has solved a series of unsafe problems that plain conductor exists, and still, thunderbolt outage problem is very outstanding.
At present, the insulated conductor bearing not stripping of insulatin layer that uses in the overhead power line of 10kv city.After the insulated conductor insulating barrier is worn by direct lightning strike or thunderbolt, form phase fault, power frequency continued flow continues finally to cause insulated conductor to blow through because of puncturing the pin hole passage place burning that forms, thereby causes the insulated conductor accident that goes offline.
Developed country adopts the time of suspended insulated guide wire power transmission and distribution longer, has accumulated a large amount of experiences.In order to reduce the thunderbolt loss of power accident rate that grows to even greater heights, successively adopted many precautionary measures and method, specific as follows:
(1) built on stilts lightning arrester
In the open space, joint use overhead ground wire to tackle distribution insulated overhead line power frequency continued flow, this is the bigger conventional method of a kind of investment.But, because the insulation level of distribution line design is lower, be very easy to cause the counterattack flashover behind the thunderbolt overhead ground wire, still can cause power frequency continued flow and blow insulated conductor.So external present less employing of this method.
(2) zinc oxide arrester
People utilize zinc oxide arrester nonlinear resistance property and the characteristic of blocking power frequency continued flow fast, are widely used in circuit with restriction thunder and lightning power frequency continued flow, and it is limited to play protection range, is merely able to protect this bar apparatus basically.Countries such as Japan, the U.S., Canada drop into huge fund circuit are transformed.After three (phase) zinc oxide arresters were installed on every basic electric pole, the thunderbolt power cut-off rate was reduced to 2.7% by original 93.3%, and the lightning-caused breaking accident does not take place basically again.When zero-clearance zinc oxide type lightning arrester was used for line thunder protection, lightning arrester directly was connected with insulated conductor, and this is the continuity of power station type lightning arrester technology, and it is reliable to have the impact energy of absorption, advantages such as discharge off time delay.
In the process that realizes the utility model, the inventor finds that there is following problem at least in prior art:
Because the insulation level of distribution line design is lower, be very easy to cause the counterattack flashover behind the thunderbolt overhead ground wire, still can cause power frequency continued flow and blow insulated conductor.Arrester without gaps is long-term because the effect of bearing lightning overvoltage and power frequency continued flow is intermittently also wanted in the effect of bearing power-frequency voltage, the lightning arrester easy ageing, so the lightning arrester accident is a lot.Because lightning arrester directly is connected with insulated conductor, when lightning arrester has an accident, may influence the normal power supply of circuit.
The utility model content
, the insulated conductor insulating barrier forms phase fault after being worn by direct lightning strike or thunderbolt in order to solve; Power frequency continued flow continues through burning because of puncturing the pin hole passage place that forms; Finally cause insulated conductor to blow; Thereby cause the go offline problem of accident of insulated conductor, the utility model embodiment provides a kind of porcelain insulator that is used to prevent the insulated conductor lightning-caused breaking.Said technical scheme is following:
A kind of porcelain insulator that is used to prevent the insulated conductor lightning-caused breaking, said porcelain insulator comprises: insulator body, last annex, following annex, metal wire clamp, insulated conductor, run-on tab, protective cover, striking mouth, insulating sleeve; Wherein, the upper end of said insulator body is fixed with the said annex of going up, and the lower end of said insulator body is fixed with said annex down; Said top of going up annex is provided with the metal wire clamp; Be provided with said insulated conductor in the said metal wire clamp, the said top of annex down is provided with said insulating sleeve, and the said bottom of annex down is fixed with said run-on tab; Said run-on tab and said insulated conductor are arranged in a crossed manner; The said annex of going up is arranged with said protective cover outward, and said metal wire clamp is positioned at said protective cover, and the position corresponding to said run-on tab arc end in the said protective cover is provided with said striking mouth.
Further, said insulated conductor is a bare wire in the part that is positioned at said metal wire clamp, and bare wire is coated with aluminium armor tape.
Further, the intersecting angle of said run-on tab and said insulated conductor is 90 degree.
The beneficial effect of the technical scheme that the utility model embodiment provides is: the utility model is provided with the striking discharging gap; When thunderbolt takes place; Make power frequency continued flow power frequency continued flow dredged the run-on tab that is arranged on down the mount pad bottom by protective cover striking mouth; Be discharged into the earth through the insulator installing rack, thereby reach the purpose of avoiding blowing insulated conductor and burn insulator, the insulator protective cover has been installed to improve power supply reliability and to prevent the water inlet of insulated conductor core; And insulating sleeve has been installed, to improve the insulator dielectric level.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment; To do to introduce simply to the accompanying drawing that uses among the embodiment below; Obviously, below listed accompanying drawing only be some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is that the utility model embodiment provides a kind of structural representation that is used to prevent the porcelain insulator of insulated conductor lightning-caused breaking.
In the accompanying drawing 1, the component list of each label representative is following:
1 insulator body; Annex on 2; 3 times annexes; 4 metal wire clamps; 5 insulated conductors; 6 run-on tabs; 7 protective covers; 8 striking mouths; 9 insulating sleeves.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer, will combine accompanying drawing that the utility model execution mode is done to describe in detail further below.
Embodiment:
As shown in Figure 1, a kind of porcelain insulator that is used to prevent the insulated conductor lightning-caused breaking comprises insulator body 1; The upper end of insulator body 1 is fixed with annex 2, and the lower end of insulator body 1 is fixed with down annex 3, and the top of last annex 2 is provided with metal wire clamp 4; Be provided with insulated conductor 5 in the metal wire clamp 4, the part that insulated conductor 5 is positioned at the metal wire clamp is a bare wire, and bare wire is coated with aluminium armor tape; The top of following annex 3 is provided with insulating sleeve 9; The bottom of following annex 3 is fixed with run-on tab 6, and run-on tab 6 is that 90 degree are provided with insulated conductor 5 intersecting angles, the last annex 2 outer protective covers 7 that are covered with; Metal wire clamp 4 is positioned at protective cover 7, and protective cover 7 is provided with striking mouth 8 corresponding to the position of run-on tab 6 arc ends.
Wherein, the diameter of insulator body 1 is 125mm, and long is 280mm.
The above-mentioned porcelain insulator that provides; When thunderbolt takes place; Starting the arc position can be not the striking mouth at the insulated conductor place but at the metal-ware place; Make power frequency continued flow power frequency continued flow dredged the run-on tab that is arranged on down the mount pad bottom, be discharged into the earth, thereby reach the purpose of avoiding blowing insulated conductor and burn insulator through the insulator installing rack by protective cover striking mouth.
A kind of porcelain insulator that is used to prevent the insulated conductor lightning-caused breaking, its installation method is:
(1) at first will be fixed on insulated conductor 5 strip ofves of metal wire clamp 4 parts, and wrap with aluminium armor tape;
(2) part that also will wrap after insulated conductor 5 strip ofves correctly is installed in the metal wire clamp 4.The pressing plate of metal wire clamp 4 compresses insulated conductor 5 downwards, and on the hex nut of the left and right sides application of force simultaneously, till tightening;
(3) after above-mentioned installation component was installed and tightened, cover was gone up insulation protective hood 7 again;
(4) adjust striking discharging gap (being arc electrode), the striking mouth 8 and arc electrode consistent (on the same straight line) of insulation protective hood 7 make it the angle with 5 one-tenth 90 ° of insulated conductors simultaneously.
The utility model is employed in the suitable stripping of insulatin layer of insulated conductor 5 fixing points; Install metal wire clamp 4 additional to bear power frequency continued flow, avoided the insulated conductor of burning, also be provided with the striking discharging gap; Make the power frequency continued flow insulator of not burning, thereby significantly reduced the lightning-caused breaking accident; In addition, insulation protective hood 7 has been installed, insulating sleeve 9 has been installed, to improve the insulator dielectric level to improve power supply reliability and to prevent the water inlet of insulated conductor core.
The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection range of the utility model.

Claims (3)

1. porcelain insulator that is used to prevent the insulated conductor lightning-caused breaking; It is characterized in that said porcelain insulator comprises: insulator body (1), last annex (2), following annex (3), metal wire clamp (4), insulated conductor (5), run-on tab (6), protective cover (7), striking mouth (8), insulating sleeve (9); Wherein, The upper end of said insulator body (1) is fixed with the said annex (2) of going up; The lower end of said insulator body (1) is fixed with said annex (3) down, and said top of going up annex (2) is provided with metal wire clamp (4), is provided with said insulated conductor (5) in the said metal wire clamp (4); The said top of annex (3) down is provided with said insulating sleeve (9); The said bottom of annex (3) down is fixed with said run-on tab (6), and said run-on tab (6) is arranged in a crossed manner with said insulated conductor (5), the said outer said protective cover (7) that is arranged with of annex (2) of going up; Said metal wire clamp (4) is positioned at said protective cover (7), and the position corresponding to said run-on tab (6) arc end in the said protective cover (7) is provided with said striking mouth (8).
2. porcelain insulator according to claim 1 is characterized in that, said insulated conductor (5) is a bare wire in the part that is positioned at said metal wire clamp (4), and bare wire is coated with aluminium armor tape.
3. porcelain insulator according to claim 1 is characterized in that, said run-on tab (6) is 90 degree with the intersecting angle of said insulated conductor (5).
CN2011202266425U 2011-06-30 2011-06-30 Porcelain insulator for preventing insulated conductor breakage caused by lightning stroke Expired - Lifetime CN202102814U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202266425U CN202102814U (en) 2011-06-30 2011-06-30 Porcelain insulator for preventing insulated conductor breakage caused by lightning stroke

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202266425U CN202102814U (en) 2011-06-30 2011-06-30 Porcelain insulator for preventing insulated conductor breakage caused by lightning stroke

Publications (1)

Publication Number Publication Date
CN202102814U true CN202102814U (en) 2012-01-04

Family

ID=45388818

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011202266425U Expired - Lifetime CN202102814U (en) 2011-06-30 2011-06-30 Porcelain insulator for preventing insulated conductor breakage caused by lightning stroke

Country Status (1)

Country Link
CN (1) CN202102814U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102592756A (en) * 2012-03-30 2012-07-18 上海市电力公司 Lightningproof composite post insulator
CN102610337A (en) * 2012-03-30 2012-07-25 上海市电力公司 Improved lightning protection post insulator
CN113674939A (en) * 2021-01-26 2021-11-19 青岛鼎信通讯股份有限公司 10kV lightning arrester with medium-voltage carrier communication capacitive coupler function

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102592756A (en) * 2012-03-30 2012-07-18 上海市电力公司 Lightningproof composite post insulator
CN102610337A (en) * 2012-03-30 2012-07-25 上海市电力公司 Improved lightning protection post insulator
CN113674939A (en) * 2021-01-26 2021-11-19 青岛鼎信通讯股份有限公司 10kV lightning arrester with medium-voltage carrier communication capacitive coupler function

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
CN201307473Y (en) Lightning protector for 10 kV line
CN202102814U (en) Porcelain insulator for preventing insulated conductor breakage caused by lightning stroke
CN201075318Y (en) Insulator string electrical arc discharge apparatus
CN201171150Y (en) Overvoltage protector for open-resistant lever for avoiding wire from breaking due to lightning stroke
CN202473431U (en) External string pure air gap lightning arrester
CN202084898U (en) Adjustable spherical electrode circuit protector
CN101699573A (en) Lightning arrester insulator for overhead wire insulated conductor
CN205141649U (en) Over -voltage protector
CN202103418U (en) Over-voltage protector for preventing insulated conductor from being broken by lightning strike
CN201946397U (en) Penetrative lightning arrester with grounding function
CN201260026Y (en) Lightning protector with series interval
CN2824393Y (en) Induction thunder screening wire for preventing 10KV overhead insulative conductor from breaking by lightning striking
CN207265416U (en) A kind of 10kV exchanges overhead transmission line arc blowing type lightning protection device
CN200944334Y (en) Column type porcelain insulator of discharging clamp line
CN201629187U (en) Lightning prevention insulator of power transmission lines
CN201490714U (en) Line lighting protection overvoltage protector
CN100428601C (en) Lightning-inductive shielding line for 10KV overhead insulated conducting wire for preventing thunderstrike breakage
CN205406957U (en) Circuit overvoltage protection device
CN202150676U (en) Puncturing type fitting used for preventing insulated lead from breaking by lightning stroke
CN204991302U (en) Strain insulator -string clearance lightning protection device that connects in parallel
CN203289052U (en) External column-type voltage limiter for overhead line insulated conductor
CN205283064U (en) Novel lightning protection device of portable built on stilts high tension transmission line
CN205016311U (en) Strain insulator -string clearance lightning protection device that connects in parallel

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: BAODING TANGBEI ELECTRICAL PROCELAIN ELECTRICAL AP

Free format text: FORMER NAME: BAODING TANGBEI ELECTRICAL PROCELAIN ELECTRICAL APPLIANCES LTD.

CP01 Change in the name or title of a patent holder

Address after: Xinshi District North Zhang Cun East 071051 Baoding city in Hebei Province

Patentee after: Baoding North China Electric Porcelain and Limited by Share Ltd

Address before: Xinshi District North Zhang Cun East 071051 Baoding city in Hebei Province

Patentee before: BAODING TANGBEI ELECTRICAL PROCELAIN ELECTRICAL APPLIANCES CO., LTD.

CX01 Expiry of patent term

Granted publication date: 20120104

CX01 Expiry of patent term