FI80169B - LJUSBAOGSSKYDD SOM VERKAR GENOM LEDNINGSISOLERINGEN. - Google Patents

LJUSBAOGSSKYDD SOM VERKAR GENOM LEDNINGSISOLERINGEN. Download PDF

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Publication number
FI80169B
FI80169B FI891267A FI891267A FI80169B FI 80169 B FI80169 B FI 80169B FI 891267 A FI891267 A FI 891267A FI 891267 A FI891267 A FI 891267A FI 80169 B FI80169 B FI 80169B
Authority
FI
Finland
Prior art keywords
jaw
arc
jaws
conduit
light
Prior art date
Application number
FI891267A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI891267A0 (en
FI80169C (en
Inventor
Harri Turunen
Hannu Teirikangas
Original Assignee
Sekko Ab Oy
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 Sekko Ab Oy filed Critical Sekko Ab Oy
Publication of FI891267A0 publication Critical patent/FI891267A0/en
Priority to FI891267A priority Critical patent/FI80169C/en
Priority to NO892527A priority patent/NO173968C/en
Priority to AU37109/89A priority patent/AU629555B2/en
Priority to JP1200136A priority patent/JP2905222B2/en
Priority to CN89106687A priority patent/CN1020527C/en
Application granted granted Critical
Publication of FI80169B publication Critical patent/FI80169B/en
Priority to ES90104869T priority patent/ES2055817T3/en
Priority to AT9090104869T priority patent/ATE105655T1/en
Priority to DE59005660T priority patent/DE59005660D1/en
Priority to EP90104869A priority patent/EP0387865B1/en
Priority to KR1019900003531A priority patent/KR940000094B1/en
Publication of FI80169C publication Critical patent/FI80169C/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00—Overhead installations of electric lines or cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T4/00—Overvoltage arresters using spark gaps
    • H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
    • H01T4/14—Arcing horns
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
    • H01R4/2408—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/12—End pieces terminating in an eye, hook, or fork
    • H01R11/14—End pieces terminating in an eye, hook, or fork the hook being adapted for hanging on overhead or other suspended lines, e.g. hot line clamp
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • H01R4/44—Clamping areas on both sides of screw

Abstract

The invention relates to a spark protection device for insulated conductors, particularly for overhead lines, having a housing consisting of a base part (5) and a cover part (6) which are clamped to one another by means of clamping elements (15) and which housing has fast jaws (7, 8) between which the conductor to be protected is clamped. At least one jaw is provided with teeth (9, 10) whose length corresponds at least to the thickness of the insulation of the conductor to be protected. Between a second pair of jaws (11; 12, 13) there is arranged a spark arrester horn (2) which extends away from the spark protection device and whose distance from the conductor to be protected is adequate to keep an electrical spark away from the wire. <IMAGE>

Description

8016980169

Johdineristeen läpi toimiva valokaarisuoja. - Ljusbagsskydd som verkar genom ledningsisoleringen.Arc protection acting through the conductor insulation. - Ljusbagsskydd som verkar genom ledningsisoleringen.

Sähkönjakelun ja -siirron käyttövarmuudelle asetetaan yhä suurempia vaatimuksia. Keskijänniteverkko on nykyisin ehkä kaikkein haavoittuvin; kaatuneet puut, lumi- ja jääkuormat sekä ilmastolliset yli jännitteet.There are increasing demands on the reliability of electricity distribution and transmission. The medium voltage network is perhaps the most vulnerable today; fallen trees, snow and ice loads, and climatic over-voltages.

Käyttövarmuuden parantamiseksi on kehitetty keskijännitteelle (esim. 20 kv) osittain eristetyt suurjänniteilmajohdot (OESI-johdot). Nämä johdot mahdollistavat paljaisiin avojoh-toihin nähden pienemmät vaihevälit, ja siis suuremman energiatiheyden. Eristetyt johdot sallivat myös pienemmät välimatkat rakennuksiin, puihin sekä vastaaviin. Tämä johtaa kapeampiin linjakatuihin ja sitä kautta taloudellisempaan rakentamiseen.In order to improve operational reliability, high-voltage power lines (OESI lines) partially insulated for medium voltage (eg 20 kv) have been developed. These wires allow smaller phase intervals, and thus a higher energy density, compared to bare overhead wires. Insulated wires also allow shorter distances to buildings, trees, and the like. This leads to narrower line streets and thus more economical construction.

Ilmastolliset yli jännitteet aiheuttavat vahinkoja päällystetyillä avojohdoilla. Lyhytaikaisetkin valokaaret (muutama kA) riittävät aiheuttamaan johdinvaurioita päällystetyille johti-mille. Releiden laukaisuaikojen asettelulla ei voida tätä estää, vaan valokaarisuojaus on toteutettava muutoin.Climatic over voltages cause damage to coated overhead lines. Even short-term arcs (a few kA) are sufficient to cause conductor damage to coated conductors. This cannot be prevented by setting the tripping times of the relays, but the arc protection must be implemented otherwise.

Valokaarisuojausta on käytettävä sellaisissa paikoissa (taajamat, risteykset ym.), joissa johtimen katkeamisesta voi aiheutua vaaraa ympäristölle ja henkilöille. Myös sellaisissa paikoissa, joissa ylijännitteen esiintyminen on todennäköistä, on käytettävä valokaarisuojausta.Arc protection must be used in places (agglomerations, intersections, etc.) where a break in the conductor can endanger the environment and people. Arc protection must also be used in places where overvoltage is likely to occur.

Nykyään valokaarisuojät asennetaan johdon kiinnityskohdassa olevan kuoritun johto-osan toiseen tai molempiin päihin jokaiseen johtimeen.Today, arc shields are installed at one or both ends of a stripped wire section at a wire mounting location on each wire.

Valokaarisuoja lisää massaa johtimeen valokaaren kriittisessä päätekohdassa ja valokaaren aiheuttama vahinko kohdistuu valokaarisuo jaan eikä itse johtimeen. Aina kun johtimesta poistetaan päällystys (kiinnitystä, kosketusliitintä, työmaadoi- 2 80169 tusta, paljasta jatkosta yms. varten) on paljaan johtimen ja päällysteen välinen kuorman puoleinen ylimenokohta suojattava valokaarisuojalla. Suojan koko on valittava verkoston (verkon osan) oikosulkuvirran mukaan.The arc shield adds mass to the conductor at the critical end of the arc, and the damage caused by the arc is applied to the arc shield and not to the conductor itself. Whenever the coating is removed from the conductor (for mounting, contact, earthed, exposed extension, etc.), the load-side transition between the exposed conductor and the coating must be protected by an arc shield. The size of the protection must be selected according to the short-circuit current of the network (part of the network).

Nykyiset valokaarisuojät vaativat asennettaessa kovan ja paksun PEX-eristeen poistamisen. Eristeen poistaminen täytyy suorittaa pitkältä matkalta kiinnitettäessä johdin esim. tukieristimille. Samoin on tehtävä kaikissa liitoskohdissa. Varsinkin kylmällä ilmalla tämä on erittäin hankala ja kallis työvaihe. Sellaisilla seuduilla, joissa ilmastollinen korroo-siovaara on ilmeinen, kuten rannikkoseudut, teollisuusilmasto ym., on johtimen eristeen poistaminen aina johdon altistamista suuremmalle korroosiolle.Current arc shields require the removal of hard and thick PEX insulation during installation. Removal of the insulation must be carried out over a long distance when attaching the cable to eg support insulators. The same must be done at all joints. Especially in cold weather, this is a very cumbersome and expensive work step. In areas where the risk of climatic corrosion is obvious, such as coastal areas, industrial climates, etc., the removal of conductor insulation always involves exposing the conductor to greater corrosion.

Tämän keksinnön tarkoituksena on saada aikaan uudentyyppinen valokaarisuoja, jonka käyttö helpottaa ja varmistaa turvallista sähkönjakelua eristetyillä avojohdoilla.The object of the present invention is to provide a new type of arc protection, the use of which facilitates and ensures the safe distribution of electricity by insulated overhead lines.

Tämä tarkoitus saavutetaan keksinnön mukaisella valokaarisuojalla oheisessa patenttivaatimuksessa 1 esitettyjen tunnusmerkkien perusteella. Epäitsenäisissä vaatimuksissa 2-5 on esitetty keksinnön toteutukseen liittyviä edullisia ratkaisuja, jotka parantavat keksinnön mukaisen valokaarisuojän käyttökelpoisuutta.This object is achieved by an arc shield according to the invention on the basis of the features set out in the appended claim 1. The dependent claims 2-5 present advantageous solutions related to the implementation of the invention, which improve the usability of the arc shield according to the invention.

Seuraavassa keksinnön erästä suoritusesimerkkiä selostetaan lähemmin viittaamalla oheisiin piirustuksiin, joissa kuvio 1 havainnollistaa valokaarisuojän käyttöä.In the following, an embodiment of the invention will be described in more detail with reference to the accompanying drawings, in which Figure 1 illustrates the use of an arc shield.

Kuvio 2 esittää keksinnön mukaista valokaarisuojaa perspektiivikuvana.Figure 2 shows a perspective view of an arc shield according to the invention.

Kuvio 3 esittää kuvion 2 mukaista valokaarisuojaa päädystä (aksiaalisuunnassa) nähtynä.Fig. 3 shows the arc guard according to Fig. 2 as seen from the end (in the axial direction).

3 801693,80169

Kuvio 4 esittää samaa valokaarisuojaa sivulta nähtynä ja kuvio 5 esittää samaa valokaarisuojaa päältä nähtynä.Fig. 4 shows the same arc shield seen from the side and Fig. 5 shows the same arc shield seen from above.

Kuviossa 1 on esitetty kaksi kappaletta valokaarisuojia 1 kiinnitettynä suojattavaan, eristepäällystettyyn avojohtoon, joka on sidelangalla kiinnitetty tukieristimeen, jota puolestaan kannattaa metallinen pylväsorsi 4. Esitetyssä tapauksessa, jossa oletetaan tehon syötön voivan tapahtua molempiin suuntiin, on valokaarisuojat 1 liitetty toisiinsa alumiinisella johdinlangalla 3. Valokaarisuojasarvet 2 suuntautuvat viistosti suojattavasta johdosta ulospäin. Esim. salamaniskun aiheuttaman syöksyaallon synnyttämä valokaari purkautuu sarven 2 kärjestä orteen 4 tai vaiheiden välillä sarven kärjestä sarven kärkeen. Jos johdolla on vain yksi tehonsyöttösuunta, tarvitaan valokaarisuojat 1 vain tukieristimen sillä puolella, joka on tehonsyöttösuunnassa tukieristimen jälkeen.Figure 1 shows two pieces of arc shields 1 attached to a shielded, insulated coated open conductor attached with a tie wire to a support insulator, which in turn is supported by a metal pole dipstick 4. In the case shown extend obliquely outwards from the wire to be protected. For example, the arc generated by the surge wave caused by the lightning strike is discharged from the tip of the horn 2 to the orte 4 or between the phases from the tip of the horn to the tip of the horn. If the cable has only one power supply direction, the arc protectors 1 are only required on the side of the support insulator which is in the power supply direction after the support insulator.

Seuraavassa esitetään tarkemmin valokaarisuojän rakennetta. Runko-osa 5 ja paininosa 6 liittyvät toisiinsa kahdella ki-ristysruuvilla 15, joita kiertämällä paininosaa 6 voidaan painaa kohti runko-osaa 5. Runko-osassa 5 on leuka 7 ja pai-ninosassa 6 on vastinleuka 8. Suojattava johdin on puristettavissa leukojen 7, 8 väliin. Metallisen kosketuksen saamiseksi eristettyyn johtimeen sen eristyksen läpi eristettä kuorimatta, on leuat 7 ja 8 varustettu hampailla 9 ja 10, joiden pituus vastaa vähintään suojattavan johtimen eriste-paksuutta. On selvää, että vastaava toiminta saavutetaan, jos vain toinen leuoista 7 tai 8 on varustettu hampailla.The structure of the arc shield is described in more detail below. The body part 5 and the press part 6 are connected to each other by two clamping screws 15, by turning which the press part 6 can be pressed towards the body part 5. The body part 5 has a jaw 7 and the press part 6 has a mating jaw 8. The conductor to be protected can be clamped 8 in between. In order to make metallic contact with the insulated conductor through its insulation without peeling the insulation, the jaws 7 and 8 are provided with teeth 9 and 10, the length of which corresponds at least to the insulating thickness of the conductor to be protected. It is clear that a similar function is achieved if only one of the jaws 7 or 8 is provided with teeth.

Runko-osa 5 ja paininosa 6 ovat varustetut kiristysruuvien 5 akselitason toisella puolella olevilla leuoilla 11 ja vastaavasti 12. Leukojen 11, 12 välissä on välileuka 13, joka on jousella 14 esijännitetty vasten rungon 5 leukaa 11. Valokaa-risuojasarvi 2 on sijoitettu rungon leuan 11 ja välileuan 13 väliin, jolloin se voidaan asettaa paikoilleen ja pysyy putoamatta paikoillaan silloinkin kun kiristysruuvit 15 ovat 4 80169 aukikännettynä ja paininosa 6 yläasennossa.The body part 5 and the pressing part 6 are provided with jaws 11 on the other side of the axial plane of the clamping screws 5 and 12, respectively. Between the jaws 11, 12 there is a spacer 13 biased by the spring 14 against the jaw 11 of the body 5. and between the spacer 13, so that it can be placed in place and does not fall into place even when the clamping screws 15 are unscrewed 4 80169 and the press part 6 is in the upper position.

Välileuan 13 ja paininosan leuan 12 väliin muodostuu kolmas leukapari, jonka leukojen väliin valokaaren johdinlanka 3 on kiinnitettävissä.A third pair of jaws is formed between the spacer jaw 13 and the jaw 12 of the press part, between the jaws of which the arc lead wire 3 can be fastened.

Suojasarvessa 2 on taivutuskohta 16, jonka kulma on esim.The protective horn 2 has a bending point 16, the angle of which is e.g.

45°. Kulma voi vaihdella välillä 30° - 90°. Sarven 2 pituus taivutuskohdan 16 jälkeen on mitoitettu riittävän pitkäksi kestämään johdon elinaikana yliännitteen aiheuttamat valokaa-rioikosulut, sopivimmin kuitenkin yli 180 mm. Suojasarvessa 2 voi olla useampiakin taivutuskohtia. Olennaista on, että purkauksen alkukohta saadaan ohjatuksi suojasarven 2 kärkeen, joka on riittävän etäällä itse valokaarisuojasta ja suojattavasta johtimesta, ja syntyvä valokaari ei vaurioita johdinta.45. The angle can vary between 30 ° and 90 °. The length of the horn 2 after the bending point 16 is dimensioned long enough to withstand the arc short circuits caused by overvoltage during the life of the cable, but preferably more than 180 mm. The protective horn 2 can have several bending points. It is essential that the starting point of the discharge is directed to the tip of the protective horn 2, which is sufficiently far from the arc shield itself and the conductor to be protected, and that the resulting arc does not damage the conductor.

Valokaarisuojan konstruktio suojasarvineen on mitoitettu siten, että se kestää johdon käyttöaikana lasketun valokaaren (salaman aiheuttaman) esiintymisen.The construction of the arc shield with its shield horns is dimensioned so that it can withstand the occurrence of the arc (caused by lightning) calculated during the use of the cable.

Keksinnön mukaista valokaarisuojaa voidaan soveltaa ja käyttää johdolla tarvittavaan työmaadoitukseen, jolloin suo-jasarvi 2 toimii maadoituselektrodin kytkentäpisteenä. Mäin ei tässäkään tapauksessa tarvitse suorittaa hankalaa johdine-ristyksen poistamista maadoituspisteen muodostamiseksi. Johtimien korroosiovaaran lisääntymistä ei kummassakaan tapauksessa ole, koska johdineristystä ei poisteta. Leukojen 7 ja 8 hampaiden 9 ja 10 urat voidaan myös rasvata runsaasti suoja-rasvalla, joten kosteus ei pääse johtimeen. Valokaarisuoja voidaan järjestää myös sijoitettavaksi erilliseen suojakote-loon.The arc shield according to the invention can be applied and used for the work earthing required by the line, in which case the shield horn 2 acts as a connection point for the earthing electrode. In this case, too, it is not necessary to carry out a cumbersome removal of the conductor junction to form a ground point. There is no increase in the risk of corrosion of the conductors in either case because the conductor insulation is not removed. The grooves in the teeth 9 and 10 of the jaws 7 and 8 can also be greased with a large amount of protective grease, so that moisture cannot enter the conductor. The arc guard can also be arranged to be housed in a separate enclosure.

Keksinnön mukainen valokaarisuoja helpottaa asennustyötä, säästää asennusaikaa ja kustannuksia. Valokaarisuoja toimii luotettavasti kovan PEX-eristeen läpi ja asennus tapahtuu normaaleilla työvälineillä.The arc protection according to the invention facilitates installation work, saves installation time and costs. The arc protection works reliably through hard PEX insulation and is installed with normal tools.

Claims (6)

1. Ett igenom en lednlngsisolator fungerande 1jusbägsskvdd, vartill hör en stomme (5) och en tryckdel (6), som förenats med varandra genotn ätminstone en spännskruv (15) och som har första käkar (7, 8), mellan vilka ledningen som skall skyd-das kan inklämraas, kännetecknat därav, att nämn-da första käkar har tänder (9, .10) vilkas längd motsvarar minst isoleringstjockleken hos ledningen som skall skyddas, och att stomdelen (5) och tryckdelen (6) försetts med ett andra käkpar (11; 12» 13), mellan vilka anordnats ett ljusbägsskydd sh or n (2), som utskjuter ur nämnda käkmellanrum,och frän ledningen som skall skyddas» tili ett tillräckligt av-ständ för att styra ljusbägen bort frän ledningen.1. An arc insulator operating through a conduit insulator, which includes a body (5) and a pressure member (6) which are joined together with at least one clamping screw (15) and having first jaws (7, 8), between which the conduit is to be can be clamped, characterized in that said first jaws have teeth (9, .10) whose length corresponds at least to the insulation thickness of the conduit to be protected, and that the body part (5) and the pressure part (6) are provided with a second jaw pair. (11; 12 »13), between which is provided an arc shield (2) projecting from said jaw gap, and from the conduit to be protected to a sufficient distance to direct the arc away from the conduit. 2. Ljusbägsskydd enligt patentkravet 1» kännetecknat därav» att mellan nämnda andra käkpar finns en mel-lankäke (13), som med en fjäder (14) är förspänd mot stommens (5) käke (11), varvid 1jusbägsskyddshornet (2) placerats mellan nämnda stomkäke (11) och mellankäken (13).Light-arc protection according to claim 1 »characterized in that between said second jaw pair there is an intermediate jaw (13) which is biased against the jaw (11) of the body (5) with a spring (14), whereby the light-arc protection horn (2) is placed between said jaw (11) and middle jaw (13). 3. Ljusbägsskydd enligt patentkravet 2, kännetecknat därav, att mellankäken (13) och tryckdelens käke (12) bildar ett tredje käkpar, mellan vars käkar ljusbägens led-ningsträd (3) kan fästas.Light-arc protection according to claim 2, characterized in that the intermediate jaw (13) and the jaw (12) of the pressure member form a third pair of jaws between which the jaws of the light-beam conduit (3) can be attached. 4; Ljusbägsskydd enligt nägot av patentkraven 1 - 3» kännetecknat därav, att ljusbägsskyddshornet (2) har ett eller flera böjningsställen (16) och skyddshornet (2) är fäs-tat mellan käkarna (11; 12, 13) i ett läge sädant, att skydds-hornets (2) ytterända ligger möjligast längt borta frän den mellan det första käkparets käkar (7, 8) fästade ledningen.4; Light-arc protection according to any one of claims 1 to 3 »characterized in that the light-arc protection horn (2) has one or more bending points (16) and the protective horn (2) is secured between the jaws (11; 12, 13) in a position so as to protect The outer end of the horn (2) is possibly farther away from the conduit (7, 8) attached between the jaw pair (7, 8). 5. Ljusbägsskydd enligt patentkravet 4, kännetecknat därav, att skyddshornets böjningsvinkel är mellan 30° och 90° och längd efter böjningsstället ätminstone 80mm.Light arc protection according to claim 4, characterized in that the bending angle of the protective horn is between 30 ° and 90 ° and the length of the bending point is at least 80 mm.
FI891267A 1989-03-17 1989-03-17 Arc protection that works through the conductor insulation FI80169C (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
FI891267A FI80169C (en) 1989-03-17 1989-03-17 Arc protection that works through the conductor insulation
NO892527A NO173968C (en) 1989-03-17 1989-06-19 Estimates statement
AU37109/89A AU629555B2 (en) 1989-03-17 1989-06-28 Flash barrier operating through a wire insulator
JP1200136A JP2905222B2 (en) 1989-03-17 1989-08-01 Flash barrier
CN89106687A CN1020527C (en) 1989-03-17 1989-08-19 Flash barrier operating through wire insulator
ES90104869T ES2055817T3 (en) 1989-03-17 1990-03-15 SPARK PROTECTION DEVICE FOR LINES PROVIDED WITH INSULATING COATING, ESPECIALLY AIRLINES.
AT9090104869T ATE105655T1 (en) 1989-03-17 1990-03-15 SPARK PROTECTION DEVICE FOR INSULATED LINES, ESPECIALLY OVERHEAD LINES.
DE59005660T DE59005660D1 (en) 1989-03-17 1990-03-15 Spark protection device for insulated lines, especially overhead lines.
EP90104869A EP0387865B1 (en) 1989-03-17 1990-03-15 Spark protection device for insulated conductors, particularly for air lines
KR1019900003531A KR940000094B1 (en) 1989-03-17 1990-03-16 Spark protection device for insulated conductors particularly for air lines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI891267A FI80169C (en) 1989-03-17 1989-03-17 Arc protection that works through the conductor insulation
FI891267 1989-03-17

Publications (3)

Publication Number Publication Date
FI891267A0 FI891267A0 (en) 1989-03-17
FI80169B true FI80169B (en) 1989-12-29
FI80169C FI80169C (en) 1990-04-10

Family

ID=8528077

Family Applications (1)

Application Number Title Priority Date Filing Date
FI891267A FI80169C (en) 1989-03-17 1989-03-17 Arc protection that works through the conductor insulation

Country Status (10)

Country Link
EP (1) EP0387865B1 (en)
JP (1) JP2905222B2 (en)
KR (1) KR940000094B1 (en)
CN (1) CN1020527C (en)
AT (1) ATE105655T1 (en)
AU (1) AU629555B2 (en)
DE (1) DE59005660D1 (en)
ES (1) ES2055817T3 (en)
FI (1) FI80169C (en)
NO (1) NO173968C (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI96648B (en) * 1995-04-24 1996-04-15 Sekko Ab Oy Arc protection for coated medium voltage lines
AT1044U1 (en) * 1995-10-30 1996-09-25 Mosdorfer Gmbh SPARK PROTECTION DEVICE
FI99060C (en) 1996-01-03 1997-09-25 Sekko Ab Oy Arc protector for a coated overhead line
GB2315166A (en) * 1996-07-06 1998-01-21 Ccl Systems Ltd Arc protection clamping connector
FI101913B (en) * 1997-04-07 1998-09-15 Sekko Ab Oy Coupling suitable for voltage-free or voltage-free work, especially coupling for arc or overcurrent protection
FI121692B (en) * 2009-07-27 2011-02-28 Ensto Finland Oy Connection piece for coated overhead lines
FI121691B (en) * 2009-07-27 2011-02-28 Ensto Finland Oy Connection piece for coated overhead lines
CN104307613B (en) * 2014-11-06 2016-10-05 机械工业第六设计研究院有限公司 Crushing and screening integration conveyer device for the cold storing of resin wheel
CN105375136A (en) * 2015-10-28 2016-03-02 国家电网公司 Rapid connector for power cables
WO2017189436A1 (en) * 2016-04-25 2017-11-02 Te Connectivity Corporation Apparatus for providing an arc diverter for covered overhead conductors and related assemblies and methods
RU168539U1 (en) * 2016-08-04 2017-02-08 Алексей Александрович Остапенко BIRD PROTECTION DEVICE
CN106760881B (en) * 2016-12-26 2018-11-02 国网山东省电力公司烟台供电公司 A kind of electric force pole tower
RU191071U1 (en) * 2019-02-18 2019-07-23 Сергей Геннадьевич Тетнев Cover for protecting power line pin insulators
RU191070U1 (en) * 2019-02-18 2019-07-23 Сергей Геннадьевич Тетнев Protective cover for power line insulators
RU193763U1 (en) * 2019-06-03 2019-11-14 Сергей Геннадьевич Тетнев Poultry device for pendant power line insulator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1513193A (en) * 1923-04-10 1924-10-28 Staton Harry Combined cable clamp and lightning arrester
US1914394A (en) * 1928-08-23 1933-06-20 Ohio Brass Co High potential transmission installation
US2560136A (en) * 1948-05-21 1951-07-10 Ericsson Telefon Ab L M Surge arrester for air lines
US2777096A (en) * 1953-07-24 1957-01-08 Allied Electric Products Inc Lightning arrester
SE332848B (en) * 1968-05-17 1971-02-22 Ericsson Telefon Ab L M
NO791192L (en) * 1979-04-09 1980-10-10 Pfisterer Elektrotech Karl Fully insulated terminal for insulated conductors.
FR2585192A1 (en) * 1985-07-18 1987-01-23 Auxiliaire Appar Electric Electrical connector intended for producing an electrical branch-off from a power cable formed from a conductor surrounded by an insulating jacket

Also Published As

Publication number Publication date
FI891267A0 (en) 1989-03-17
CN1045664A (en) 1990-09-26
KR940000094B1 (en) 1994-01-05
EP0387865B1 (en) 1994-05-11
EP0387865A1 (en) 1990-09-19
JPH02273020A (en) 1990-11-07
NO892527D0 (en) 1989-06-19
KR900015403A (en) 1990-10-26
ATE105655T1 (en) 1994-05-15
NO173968B (en) 1993-11-15
FI80169C (en) 1990-04-10
CN1020527C (en) 1993-05-05
DE59005660D1 (en) 1994-06-16
AU3710989A (en) 1990-09-27
NO173968C (en) 1994-02-23
ES2055817T3 (en) 1994-09-01
AU629555B2 (en) 1992-10-08
JP2905222B2 (en) 1999-06-14
NO892527L (en) 1990-09-18

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