EP3127199A1 - Parasurtenseur - Google Patents

Parasurtenseur

Info

Publication number
EP3127199A1
EP3127199A1 EP15713185.5A EP15713185A EP3127199A1 EP 3127199 A1 EP3127199 A1 EP 3127199A1 EP 15713185 A EP15713185 A EP 15713185A EP 3127199 A1 EP3127199 A1 EP 3127199A1
Authority
EP
European Patent Office
Prior art keywords
housing
arc
electrodes
combustion chamber
chambers
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.)
Granted
Application number
EP15713185.5A
Other languages
German (de)
English (en)
Other versions
EP3127199B1 (fr
Inventor
Maik Dittert
Thomas Meyer
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.)
Phoenix Contact GmbH and Co KG
Original Assignee
Phoenix Contact GmbH and Co KG
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 Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Publication of EP3127199A1 publication Critical patent/EP3127199A1/fr
Application granted granted Critical
Publication of EP3127199B1 publication Critical patent/EP3127199B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H01T1/00—Details of spark gaps
    • H01T1/20—Means for starting arc or facilitating ignition of spark gap
    • 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
    • H01T1/00—Details of spark gaps
    • H01T1/02—Means for extinguishing arc
    • 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
    • H01T2/00—Spark gaps comprising auxiliary triggering means
    • H01T2/02—Spark gaps comprising auxiliary triggering means comprising a trigger electrode or an auxiliary spark gap
    • 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
    • H01T4/12—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel hermetically sealed

Definitions

  • the invention relates to a surge arrester for use in the supply of low-voltage networks, in particular for use between a neutral conductor N and a potential equalization PE, with a cylindrical housing, with two axially opposite electrodes and with an arc formed inside the housing arc, wherein the arc combustion chamber is axially bounded by the two electrodes and between the two electrodes, a spark gap is formed, so that when igniting the spark gap between the two electrodes, an arc is formed.
  • An essential component of overvoltage saber of the type in question here is a spark gap, which responds at a certain overvoltage, whereby an arc arises when the spark gap between the two electrodes is ignited.
  • Very high and steeply rising currents with values of up to three-digit kA range can flow over the spark gap.
  • surge arresters which are provided as lightning current arresters for use between a neutral conductor N and the equipotential bonding PE or a PE conductor, must have a very high surge current capability of up to 100 kA 10/350. Due to the pressures and forces occurring in the interior of the surge arrester such surge sableiter are usually arranged in pressure-resistant housings.
  • Surge arresters with a spark gap have the advantage of a high surge current carrying capacity, but also the disadvantage of a relatively high and also not very constant response voltage. Therefore, for the ignition of sparks stretch for a long time different types of ignition aids are used, with the help of the response voltage of the spark gap and the surge arrester is reduced.
  • cooling channels are provided in the housing in the known Matternapssabieiter through which the produced in the arc combustion chamber during the discharge process by the arc hot, ionized gases are removed from the housing. So that the gases flowing out of the housing do not have too high a temperature, the cooling channels must be designed such that they provide a sufficiently long path which the plasma flows along in the housing.
  • the housing is formed in two parts and the two housing halves are arranged coaxially to each other, wherein between the two housing parts helical cooling channels are arranged, through which on the one hand the plasma can flow to the other at the same time for Ver gland of the two housing parts serve each other.
  • the housing consists of two coaxially arranged housing parts, which are screwed together, to ensure sufficient mechanical stability, the wall thickness of the two housing parts must be relatively large, resulting in a correspondingly increased outer diameter of the housing as a whole.
  • the fundamental problem that can be affected or damaged by the exiting the channels ionized gas electrical components and devices that are in the immediate vicinity of the surge arrester.
  • the present invention is therefore based on the object of developing the above-described surge arrester in such a way that the aforementioned disadvantages are avoided as far as possible.
  • it should be dispensed with the blowing out of ionized gases, but the surge sableiter should have the smallest possible size.
  • the volume of the two chambers serving for deionization of the arc combustion chamber together is substantially larger than the volume of the arc combustion chamber, the ratio of the volume of the arc both chambers to the volume of the arc combustion chamber is at least 10: 1, in particular about 20: 1.
  • the surge arrester according to the invention is therefore an encapsulated surge arrester which has no outflow openings or discharge openings through which ionized gas is intentionally released into the environment.
  • the two chambers are arranged in the longitudinal direction of the housing on opposite sides of the arc combustion chamber, wherein the two chambers each have an axial and a radial distance from the arc combustion chamber. From the point of view of the arc combustion chamber, the two chambers which serve to receive the hot, ionized gases produced during the discharge process are thus arranged radially outwardly behind the electrodes or their end faces delimiting the arc combustion chamber.
  • the inventive design and arrangement of the two chambers within the housing initially allow that during discharge by the burning arc resulting hot, conductive gases can flow out of the arc combustion chamber, so deleted a Netz Steinstrom and prevents renewed ignition of the spark gap below the operating voltage of the surge sableiters becomes.
  • a force or pressure in the direction of the electrodes is generated by the arrangement of the two chambers on opposite sides of the arc combustion chamber and behind the electrodes by the gas flowing into the chambers, which counteracts the pressure that occurs in the ignition of the spark gap in the Arc combustion chamber is created. The load on the two electrodes of the spark gap is thereby reduced.
  • the desired large volume of the two chambers in comparison to the volume of the arc combustion chamber can preferably be relatively easily realized in that the two chambers are annular.
  • the fact is exploited in an advantageous manner that usually in the housing of a surge arrester in the area behind the electrodes most easily the volume required for the chambers can be provided without the outer dimensions of the surge arrester must be increased.
  • the ring-shaped Formation of the two chambers also lower mechanical stress on the housing, as the pressures and forces substantially uniformly distributed on the housing act.
  • a cylindrical insulating body is arranged in the housing of the surge arrester, which has a bore extending in the longitudinal direction of the housing into which the two electrodes each project with their the arc combustion chamber facing end, so that the insulating body surrounding the arc combustion chamber radially.
  • the at least one channel is at least partially formed by the insulating body.
  • the arc combustion chamber is thus delimited in the axial direction by the two opposing electrodes or their end faces and in the radial direction by the cylindrical insulating body.
  • the limitation of the arc combustion chamber in the radial direction is interrupted by the at least one channel, via which the arc combustion chamber is connected to the two chambers.
  • the at least one channel between the arc combustion chamber and the two chambers can be realized simply by forming corresponding recesses, openings or free spaces in the insulating body, which allow a flow of the gas from the arc combustion chamber into the two chambers.
  • the actual channel does not have to be completely surrounded by the insulating body, but may also - be formed entirely or section by a portion of the insulating body and a portion of another, the portion of the insulating member opposite component.
  • the insulating body also serves to ensure permanent insulation between the two electrodes and the mechanical stability of the spark gap by the insulator ensures that the distance between the two electrodes to one another remains unchanged even after a discharge.
  • the insulating body is preferably formed so that it has an inner portion surrounding the bore and a sleeve-shaped outer portion which has a greater extension in the longitudinal direction of the housing than the inner portion.
  • the sleeve-shaped outer section It also serves to insulate the electrodes from the housing, especially if it is preferably made of metal, while the inner portion serves to ensure the permanent insulation between the two electrodes and the mechanical stability of the spark gap.
  • at least a part of the channel is formed between the inner portion and the outer portion of the insulating body.
  • the inner portion of the insulating body on two arcuate webs which overlap in the circumferential direction of the inner portion only in a small area and are arranged one behind the other in the longitudinal direction of the housing.
  • the two circular webs thus together form at least a part of the radial boundary of the bore of the insulating body, wherein the two webs, however, are arranged axially offset from one another.
  • the two arcuate webs thus have a thickness extending in the longitudinal direction of the housing, which is less than the corresponding total thickness of the inner portion of the insulating body, so that in each case a free space remains, through which the ionized gas can flow.
  • the two circular arc-shaped webs at a radial distance to the outer portion of the insulating body, so that the gas can flow between the webs and the outer portion.
  • the two channels are formed, which connect the arc combustion chamber in each case with two chambers.
  • the two channels each have a first radially extending channel section and a second axially extending channel section, wherein the first channel sections are connected to the arc combustion chamber and the second channel sections are each connected to both chambers.
  • Hot ionized gas which arises after the ignition of the spark gap through the arc in the arc combustion chamber, can thus flow radially along the two arcuate webs or along and then axially between the outer edge of the arcuate webs and the outer portion of the insulator through and along the inner surface of the sleeve-shaped outer portion flow into the two chambers.
  • the surge arrester according to the invention preferably has an ignition aid arranged within the housing, which comprises at least one ignition element and one ignition electrode.
  • the ignition element and the ignition electrode are in contact with the arc combustion chamber, the ignition element being electrically conductively connected on one side to the one electrode and on the other side to the ignition electrode.
  • the ignition aid used in the surge arrester according to the invention can be constructed as well as the ignition aid described in DE 103 38 835 AI is constructed.
  • a current first flows from the first connection via the housing, the ignition electrode and the ignition element to the wide electrode or to the second connection. In this case, the current flow via the ignition element leads to a discharge or an initial arc between the ignition electrode and the electrode associated with the ignition element, which then leads to an ignition of the spark gap between the two electrodes.
  • the inner portion of the insulating body preferably has a receiving region for the ignition element and the ignition electrode, which has an opening to the arc combustion chamber through which the ignition electrode and the ignition element in contact with the arc combustion chamber.
  • the receiving area formed on the inner portion of the insulating body is preferably arranged in the circumferential direction of the inner portion between the two circular arc-shaped webs, so that the inner portion of the insulating body is divided in the circumferential direction in three areas, namely the two arcuate webs, which in overlap a small area, and the receiving area for the ignition element and the ignition electrode, which is preferably arranged opposite to the overlap region.
  • the housing is preferably made of metal, in particular of steel.
  • the housing is formed in two parts, wherein it consists of a cup-shaped first housing part and a corresponding housing cover.
  • the housing cover preferably has an external thread, so that this can be screwed into the first housing part, which has a corresponding internal thread. Due to the design of the housing with a cup-shaped first housing part and a housing cover, the outer diameter of the housing compared to the known from DE 103 38 835 AI housing with two substantially equally long coaxial housing halves can be reduced without the wall thickness of the first housing part reduced or the space available inside the housing is reduced.
  • the two electrodes are each arranged in the end face of an electrode holder.
  • This has the advantage that different materials can be used for the electrodes on the one hand and for the electrode holder on the other hand, wherein the electrodes themselves are usually made of tungsten or a composite material, such as a tungsten-copper alloys and the electrode holder made of brass.
  • the end face of the electrode holders receiving the electrodes lies on one side on the inner portion of the insulating body, so that the end face surrounding the electrodes Electrode holder are covered by the inner portion of the insulating body.
  • the electrode holder are each surrounded by an insulating sleeve open on both sides.
  • the electrode holders are each surrounded by an insulating sleeve open on both sides.
  • FIG. 1 is a side view of a surge arrester according to the invention
  • FIG. 2 shows a first longitudinal section through the surge arrester according to FIG. 1, FIG.
  • FIG. 3 shows a second longitudinal section rotated by 90 ° through the surge arrester according to FIG. 1,
  • FIG. 5 is a perspective view of an insulating body of the surge arrester
  • FIG. 6 is a plan view of the insulator according to FIG. 5.
  • FIGS. 1 to 4 show an overvoltage arrester 1 according to the invention, an exploded view of the surge arrester 1 being shown in FIG. 4, so that the individual components of the surge arrester 1 can be seen.
  • the surge arrester 1 according to the invention is provided in particular for use between a neutral conductor N and the equipotential bonding PE, so that the surge arrester 1 must have a surge current capability of up to 100 kA 10/350. In addition, network follow currents up to 100 A must be able to be safely deleted.
  • the Matternapsabieiter 1 has a cylindrical housing 2, in the interior of which two mutually axially opposed electrodes 3, 4 are arranged.
  • the housing 2 is made of steel and has a cup-shaped first housing part 2a and a housing cover 2b, which is screwed into the first housing part 2a.
  • the two electrodes 3, 4 delimit with their opposite end faces in the housing 2 from formed arc combustion chamber 5, so that between the two electrodes 3, 4, a spark gap is formed.
  • the distance of the two electrodes from one another and thus the extent of the arc combustion chamber 5 in the longitudinal direction of the housing 2 is less than 1 mm, preferably only about 0.8 mm, in the illustrated surge absorber 1.
  • two chambers 6, 7 are formed within the housing 2, which are both connected via two channels 8, 9 with the arc combustion chamber 5.
  • the two chambers 6, 7 are arranged in the longitudinal direction of the housing 2 on opposite sides of the arc combustion chamber 5.
  • the two chambers 6, 7 each have an axial and radial distance to the arc combustion chamber 5, so that the two chambers 6, 7 are arranged radially outwardly behind the electrodes 3, 4 as viewed from the arc combustion chamber 5.
  • the volume of the two annular chambers 6, 7 together is substantially greater than the volume of the arc combustion chamber 5.
  • the ratio of the volume of the two chambers 6, 7 to the volume of the arc combustion chamber 5 is about 20: 1.
  • Hot, conductive gases produced during the discharge process by the burning arc can thus flow through the channels 8, 9 into the annular chambers 6, 7 serving for deionization and cooling, so that an arc present within the arc combustion chamber 5 is rapidly extinguished and reliably prevents renewed ignition becomes.
  • the hot, ionized gases are guided into regions which are not critical both with respect to the risk of renewed ignition and with respect to the insulation between the two electrodes 3, 4. Since the annular chambers 6, 7 are surrounded by the metal housing 2, a good and rapid heat release to the housing 2 and thus a rapid cooling of the gases is possible.
  • An essential component of the surge arrester 1 is the cylindrical insulator 10 which is arranged in the interior of the housing 2 and which is enlarged in FIGS. 5 and 6.
  • the insulating body 10 has a bore 11 which extends in the longitudinal direction of the housing 2 and into which the two electrodes 3, 4 respectively project with their end face facing the arc combustion chamber 5.
  • the insulating body 10 has a bore 11 surrounding inner portion 12 and a sleeve-shaped outer portion 13 which has a significantly greater extension in the longitudinal direction of the housing 2 as the inner portion 12, as shown in the two sectional views of FIGS. 3 and 4 is.
  • the inner portion 12 of the insulating body 10 has two arcuate webs 14, 15 which overlap in the circumferential direction of the inner portion 12 only in a small, web-like region 16 and in the longitudinal direction of the housing 2 are arranged one behind the other.
  • the two circular-arc-shaped webs 14, 15 also have a radial distance from the outer portion 13 of the insulator 10, so that between the outer edge of the arcuate webs 14, 15 and the sleeve-shaped outer portion 13, two passages 17 are formed for the gas, the one Part of the two channels 8, 9 form.
  • the two channels 8, 9 each have a first radially extending channel section 8a, 9a and a second axially extending channel section 8b, 9b.
  • the first channel sections 8a, 9a which are delimited on one side by a web 14, 15, are connected to the arc combustion chamber 5, while the second channel sections 8b, 9b are respectively connected to both chambers 6, 7.
  • the passages 17 provided between the circular-arc-shaped webs 14, 15 and the sleeve-shaped outer section 13 make it possible for hot ionized gas to be able to flow out of the arc combustion chamber 5 into both chambers 6, 7 via both channels 8, 9.
  • the gas can thus flow radially from the arcuate combustion chamber 5 past the two arcuate webs 14, 15 and then flow axially along the inner surface of the sleeve-shaped outer portion 13 into both chambers 6, 7.
  • the insulating body 10 also still serves to receive a firing element
  • a receiving region 20 is provided in the inner portion 12 of the insulating body 10, which has an opening 21 to the arc combustion chamber 5, so that the ignition element 18 and the ignition electrode 19 are in contact with the arc combustion chamber 5 through the opening 21, as shown in FIG. 3 can be seen. From the top view of the insulating body 10 of FIG. 6 it can be seen that the receiving area 20 in the circumferential direction of the inner portion 12 between the two arcuate webs 14, 15 is arranged, wherein the two arcuate webs 14, 15 and the receiving area 20 respectively extend over about one third of the circumference of the inner portion 12 of the insulator 10.
  • the inner portion 12 of the insulating body 10 is thus divided into three functional areas, wherein in the receiving area 20 for the ignition element 18 and the ignition electrode 19, the ignition of the spark gap, while the circular arc-shaped webs 14, 15 each have a part of the two channels 8, 9 for the flow of the ionized gas from the arc combustion chamber 5 in the two cylindrical chambers 6, 7 form.
  • the web-like region 16, in which the arcuate webs 14, 15 overlap is connected to the outer portion 13 of the insulating body 10.
  • the web-like region 16 is designed to be very stable, so that it is ensured that the distance between the two electrodes 3, 4 remains permanently unchanged.
  • the web-like region 16 and the edge of the receiving area 20 which is also connected to the outer portion 13 of the insulating body 10 and the same thickness as the web-like region 16 has.
  • the outer portion 13 of the insulating body 10 has a recess 22, the direction of the insulator 10 seen in the circumference, corresponding to the receiving area 20 for the ignition element 18 and the ignition electrode 19 in the inner portion 12th is arranged.
  • the recess 22 ensures that the ignition electrode
  • the arc combustion chamber 5 facing away from the edge of the housing 2 is in contact. It also facilitates training the recess 22 in the outer portion 13 of the insulator 10, the assembly of the surge arrester 1, since the ignition electrode 19 and the ignition element 18 can be easily inserted into the receiving area 20 on the inner portion 12 of the insulator 10.
  • the two electrodes 3, 4, which are preferably made of tungsten, are each arranged in the end face of an electrode holder 23, 24.
  • the end faces of the electrode holders 23, 24 accommodating the electrodes 3, 4 rest in each case on one side on the inner portion 12 of the insulating body 10, namely respectively on an arcuate web 14 or 15.
  • the electrodes 3, 4 facing away from the ends of the electrode holder 23, 24 protrude, however, out of the housing 2, for which purpose in the bottom of the cup-shaped first housing part 2a and in the housing cover 2b each have a bore 25, 26 is seconded.
  • the radially extending channel sections 8a, 9a formed in the interior of the insulating body 10 are thus bounded on each side by an arcuate web 14, 15 and on the other side by the opposite region of the end face of an electrode holder 23, 24.
  • the hot ionized gases produced during the discharge process can flow unhindered through the channel sections 8a, 9a, so that deposits of conductive particles on the end faces of the electrode holders 23, 24 do not occur.
  • the end faces of the electrode holder 23, 24 are not exposed to high temperatures for a long period of time. This prevents brass electrode holders 23, 24 from damaging the electrode holders 23, 24 or from leakage currents or short-circuits due to conductive deposits.
  • the two electrode holders 23, 24 are each surrounded by an insulating sleeve 27, 28 open on both sides.
  • the insulation between the - in the figures right electrode holder 24 and the cup-shaped first housing part 2a is also ensured in the region of the recess 22 in the outer portion 13 of the insulator 10, the electrode holder 24 associated insulating 28 has an axially and radially over standing collar 29 which engages in the recess 22, so that the insulation is interrupted to the first housing part 2a only in the region of the ignition element 18 and the ignition electrode 19.

Landscapes

  • Spark Plugs (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

L'invention concerne un parasurtenseur (1), destiné à être utilisé dans l'alimentation électrique de réseaux basse tension, en particulier entre un conducteur de neutre N et une liaison équipotentielle PE, comprenant un boîtier cylindrique (2), deux électrodes (3, 4) situées à l'opposé l'une de l'autre dans le sens axial, et une chambre d'extinction d'arc (5) formée à l'intérieur du boîtier (2). La chambre d'extinction d'arc (5) est limitée axialement par les deux électrodes (3, 4) et un éclateur est formé entre les deux électrodes (3, 4) de façon à générer un arc électrique entre lesdites électrodes (3, 4) lors de l'amorçage de l'éclateur. Le parasurtenseur selon l'invention permet de se passer du soufflage de gaz ionisés en formant à l'intérieur du boîtier (2) deux chambres (6, 7) respectivement reliées par deux conduits (8, 9) à la chambre d'extinction d'arc (5) de telle sorte que, après l'amorçage de l'éclateur, le gaz ionisé chaud peut s'écouler de la chambre d'extinction d'arc (5) dans les chambres (6, 7), le volume des deux chambres (6, 7) prises ensemble étant plus grand que le volume de la chambre d'extinction d'arc (5). Les deux chambres (6, 7) sont disposées sur des côtés opposés de la chambre d'extinction d'arc (5) dans le sens longitudinal du boîtier (2) et elles présentent chacune un écartement axial et radial par rapport à la chambre d'extinction d'arc (5).
EP15713185.5A 2014-04-01 2015-03-27 Parafoudre Active EP3127199B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014104576.9A DE102014104576B4 (de) 2014-04-01 2014-04-01 Überspannungsableiter
PCT/EP2015/056709 WO2015150253A1 (fr) 2014-04-01 2015-03-27 Parasurtenseur

Publications (2)

Publication Number Publication Date
EP3127199A1 true EP3127199A1 (fr) 2017-02-08
EP3127199B1 EP3127199B1 (fr) 2019-12-25

Family

ID=52779654

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15713185.5A Active EP3127199B1 (fr) 2014-04-01 2015-03-27 Parafoudre

Country Status (4)

Country Link
EP (1) EP3127199B1 (fr)
CN (1) CN106463911B (fr)
DE (1) DE102014104576B4 (fr)
WO (1) WO2015150253A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107578864B (zh) * 2017-08-24 2024-01-30 王巨丰 一种具有四侧喷射通道的曲折同步压缩灭弧防雷装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2431226A (en) * 1943-02-11 1947-11-18 Westinghouse Electric Corp Low-pressure gap device
DE3833167A1 (de) * 1988-09-27 1990-03-29 Siemens Ag Gasentladungs-ueberspannungsableiter
DE19604947C1 (de) * 1996-02-10 1997-07-10 Dehn & Soehne Verfahren zur Beeinflussung des Folgestromlöschvermögens von Funkenstreckenanordnungen und Funkenstreckenanordnungen hierfür
DE19717802B4 (de) * 1997-04-26 2009-09-17 Dehn + Söhne GmbH + Co KG Funkenstrecke
DE19845889B4 (de) * 1998-10-06 2007-03-01 Dehn + Söhne GmbH + Co KG Funkenstreckenanordnung
DE10338835B4 (de) 2003-08-21 2016-06-02 Phoenix Contact Gmbh & Co. Kg Überspannungsschutzeinrichtung
SE532114C2 (sv) * 2007-05-22 2009-10-27 Jensen Devices Ab Gasurladdningsrör

Also Published As

Publication number Publication date
CN106463911A (zh) 2017-02-22
DE102014104576A1 (de) 2015-10-01
WO2015150253A1 (fr) 2015-10-08
EP3127199B1 (fr) 2019-12-25
DE102014104576B4 (de) 2016-02-11
CN106463911B (zh) 2018-10-12

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