EP2198440B1 - Interrupteur-sectionneur - Google Patents

Interrupteur-sectionneur Download PDF

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Publication number
EP2198440B1
EP2198440B1 EP08774535.2A EP08774535A EP2198440B1 EP 2198440 B1 EP2198440 B1 EP 2198440B1 EP 08774535 A EP08774535 A EP 08774535A EP 2198440 B1 EP2198440 B1 EP 2198440B1
Authority
EP
European Patent Office
Prior art keywords
load
locking
cover
break switch
release element
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.)
Active
Application number
EP08774535.2A
Other languages
German (de)
English (en)
Other versions
EP2198440A1 (fr
Inventor
Alex Büttner
Andreas Hetenyi
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.)
Woehner GmbH and Co KG Elektrotechnische Systeme
Original Assignee
Woehner GmbH and Co KG Elektrotechnische Systeme
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 Woehner GmbH and Co KG Elektrotechnische Systeme filed Critical Woehner GmbH and Co KG Elektrotechnische Systeme
Publication of EP2198440A1 publication Critical patent/EP2198440A1/fr
Application granted granted Critical
Publication of EP2198440B1 publication Critical patent/EP2198440B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/10—Adaptation for built-in fuses
    • H01H9/104—Adaptation for built-in fuses with interlocking mechanism between switch and fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02—Details
    • H01H31/12—Adaptation for built-in fuse
    • H01H31/122—Fuses mounted on, or constituting the movable contact parts of, the switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/54—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers
    • H01H85/545—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers with pivoting fuse carrier
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
    • H01H9/281—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock
    • H01H9/282—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock and a separate part mounted or mountable on the switch assembly and movable between an unlocking position and a locking position where it can be secured by the padlock

Definitions

  • the invention relates to a switch-disconnector, in particular for mounting on busbars, according to the preamble of patent claim 1.
  • the DE 91 01 973 U1 discloses a switch-disconnector, in particular a NH fuse-switch with a housing and a lid pivotally mounted thereon, with a power switch for establishing or interrupting an electrical connection between associated contacts and with an operating lever for switching on and off and a release element for the lid and a locking mechanism accordingly the preamble of claim 1.
  • Switch-disconnectors of the type mentioned are known and are characterized essentially by the fact that in addition to the actual housing a separate and operable by a separate rotary lever snap-action mechanism is provided, with which a switching on and off of the circuit breaker from the current operation in the currentless operation or conversely possible.
  • Previously available load-break switches are mainly based on the modular design principle. As far as jumpers are available, they are located laterally from the switch-disconnector or between the fuses. To operate the snap mechanism this turning handles are used.
  • the invention has for its object to form a load-break switch so that its switching between the current operation and de-energized operation safely and easily can be designed, wherein in the currentless operation, i. in the off state, the lid can be opened. It should be possible to lock in the off state of the circuit breaker.
  • the invention provides a switch-disconnector, which consists of a housing with a lid pivotally hinged thereto and having an actuating lever which is displaceable together with the lid when opening the cover about a common pivot axis.
  • the opening of the lid can be achieved only in the off state of the circuit breaker, i. in a predetermined position of the actuating lever and by additionally pressing a release element, which is operable in the predetermined position of the actuating lever.
  • a locking mechanism is provided which releases the release element for the purpose of actuation only when the operating lever assumes a specific position in which the load-break switch is de-energized.
  • the release element is coupled to a locking device and adjusts the locking device as soon as the release element itself is released for movement by the locking mechanism and is actuated.
  • the locking device is adjusted by actuation of the release element in a predetermined direction, preferably in the axial direction of the load-break switch, such that the cover is released by the locking device.
  • the locking device preferably has over a front end wall of the circuit breaker projecting portions which can be brought into engagement with a locking device, such that upon release of a lid pivoting movement, the locking device is blocked by the locking device, and thus an adjustment of the operating lever and the cover in the on state is prevented.
  • FIG. 1 shows a schematic perspective view of the load-break switch according to the invention.
  • the switch-disconnector has a housing 1, on the upper side of which a lid 2 is pivotally provided.
  • the pivot axis is in FIG. 1 denoted by 3.
  • the cover 2 is provided on the housing side about the axis 3 pivotally on the leg 4.
  • an actuating lever. 5 provided, which is preferably designed in the form of a rocker arm, wherein the in FIG. 1 shown position is selected so that the actuating lever is in a vertical position corresponding to the open position of the circuit breaker.
  • a release element 6 preferably in the form of a push button, which is vertically displaced downwards, provided that a locking mechanism to be explained releases the release element 6.
  • the release element 6 thus serves to displace a locking device to be described, which acts on the cover 2, for the purpose of unlocking the lid.
  • FIG. 1 it can be seen, the housing 1 is shown broken away, that is, the housing walls are in FIG. 1 Not shown.
  • the operating lever 5 acts accordingly FIG. 2 to a coupling shaft 8, wherein the operating lever 5 consists of a handle 5a and side arms 5b and 5c.
  • the arms 5b, 5c are connected to the coupling shaft 8 via a coupling pair 8 attached to the coupling shaft 8.
  • FIG. 2 shows only one pawl of the pawl pair 10.
  • the arms 5b, 5c of the actuating arm 5 are provided with a corresponding recess or a slot 12 which is attachable to the pawl 10 in question.
  • the snap-action mechanism is coupled to a control member 18.
  • the control member 18 is in operative engagement with another control element 20 such that by an adjustment of the control member 18, preferably by a rotation of the control member 18, the control element 20 in the direction of an axis x, which extends axially to the switch disconnector, can be adjusted to the Lock release element 6 or to dearretieren.
  • the snap-action mechanism 16 by a displacement of the lever 5 in the clockwise direction from the position Fig. 9 in the position after Fig. 2 activated, the control member 18 is adjusted, preferably rotated, which causes a movement of the control element 20 in the direction of an arrow A, whereby the release element 6 is released.
  • control member 18 and the control member 20 are in an engaging relationship such that the control member 20 is pulled against the direction of the arrow A by the movement of the control member 18 along a control cam which may be provided on the underside of the plate-shaped control element 20 to release the release element 6.
  • the release element 6 is engaged with a locking device 22 and this locking device 22 is in detail in the Figures 3 and 4 shown.
  • the locking device 22 consists of preferably two symmetrically arranged locking arms 24, 25, of which each arm 24, 25 has a front end 24a, 25a and a rear end 24b, 25b.
  • the rear ends 24b, 25b serve to engage in openings or slots 28, 29 formed in a front end wall of the front cover 2, ie these ends 24b, 25b are pulled out of the openings 28, 29 in the event of actuation of the release element 6 and thus release the cover 2, while in the case of the non-actuated release element 6, they engage in the openings 28, 29 and lock the cover 2.
  • the locking arms 24, 25 are preferably guided symmetrically to the housing axis on both sides of the release element 6 slidably.
  • the release member 6 laterally projecting pins 30, 31, as will be described later in detail, which are in contact with inclined surfaces, which in the locking arms 24, 25 in accordance with FIG. 3 and 4 are formed.
  • the release element 6 which is preferably by a spring 36 (FIG. FIG. 4 ) is biased upward, engage the pins 30, 31 in engagement with the inclined surfaces 32, 34 which are designed such that upon a downward movement of the release member 6 and the corresponding movement of the pins 30, 31, the locking arms 24, 25 against the direction of the arrow A are displaced, that is displaced on the front end wall 38 against the direction of the arrow A.
  • the inclined surfaces 32, 34 are preferably provided in a parallel arrangement laterally in the locking arms 24, 25 for fixing a respective guide groove 32 a for each pin 30, 31.
  • actuating lever 5 is locked by an additional, not further described locking means of the actuating lever 5 with respect to its arms 5b, 5c relative to the lid 2 such that it remains rigidly on the lid 2 and thus the lid 2 by means of Actuating lever 5 and can be pivoted together with this about the axis 3 upwards.
  • a locking device 40 preferably in the form of a plate on the bent ends 24a, 25a shift and lock against these, as in FIG. 6 is shown.
  • the closing device 40 is guided laterally in the housing of the guide devices 42, 44 and can thus be displaced vertically relative to the housing 1.
  • the locking device 40 has two slots 46, 48, which have a width such that the bent ends 24a, 25a of the locking arms can be moved through these slots 46, 48, as well as step portions 50, 52, a reduction or narrowing of these slots effect such that in the upwardly displaced position of the locking device 40 according to FIG. 5 the bent ends 24a, 25a are brought into abutment with these steps 50, 52 of the closing device 40.
  • a shift back of the locking arms 24, 25 prevented in the direction of the arrow A. This means that in the state after FIG.
  • the switch remains in the off state that an actuation of the operating lever 5 is prevented in the on state and that in this state manipulations within the housing of the circuit breaker without the risk that a current flow occurs can be made.
  • This condition is also ensured by an adjustment of the control element 20 in the direction of locking of the release element 6 and thus an adjustment of the control member 18 and the coupled therewith jump mechanism 16 is excluded in the closed position of the circuit breaker.
  • FIG. 5 shows the position in which the lock plate 40 is pulled up and prevents retraction of the ends 24a, 25a in the direction of arrow A, because the bent ends with the steps 50, 52 engage or stand on this.
  • locks can further be used in openings 54, 56, 58 formed by the plate-shaped closing device 40 on the upper side thereof, which locks the closing device downwards into the openings FIG. 6 prevent the position shown.
  • the locking device 40 is displaced into the lower position in which the locking arms 24, 25 in the direction of arrow A, ie in the axial direction and in the direction of the end wall 38 are displaced, with the aim that the locking arms 24, 25 in the associated openings 28, 29 of the lid 2 are displaced to block the lid 2.
  • FIG. 7 illustrates the release element 6, preferably in the form of a push button, with its laterally projecting pins 30, 31, and the control element 20, which the shape a plate and according to a preferred embodiment, from its underside abstrebende arms 60, 62 which can engage under the release element 6 formed therein recesses to prevent the movement of the release element 6 in the direction of an arrow Z.
  • the plate-shaped control element 20 is when the operating lever 5 from the in FIG. 1 shown position, for example, to be adjusted counterclockwise by a predetermined angle to turn on the switch-disconnector.
  • FIG. 7 also shows the part of the control cam 66, in which the example rotatable control member 18 is able to intervene to move by its rotation with a corresponding guide relative to the control 20 of this together with the arms 60, 62 in a direction A or opposite thereto.
  • the control element 20 as well as the release element 6 is guided in the respective direction of movement by guide means, not shown.
  • the control member 18 is arranged on or on the snap-action mechanism 16 and is adjusted by the movement thereof.
  • FIG. 8a illustrates the engagement between release element 6 and one of the arms 24, 25, wherein FIG. 8 the arm 24 is shown with the inclined surface 32, opposite which the pin 30 is moved to the movement of the respective locking arm in or in the opposite direction to the arrow A.
  • Fig. 4 shows, preferably within the release member 6 opposite a housing bottom 7 and is in Fig. 4 denoted by 36.
  • the inclined surfaces 32 form in the locking arm 24 and 25 each have an oblique groove, as is made Fig. 3 and 4 it can be seen, wherein each oblique groove from the front end 24a down toward the rear end 24b of each locking arm 24, 25 runs.
  • each locking arm 24, 25 is displaced in the direction of the arrow A, while the locking arms 24, 25 are displaced counter to the direction A during the raising of the release element 6.
  • the cover 2 is thus released, as described above, wherein the above-mentioned locking device within the lid 2, preferably due to a release by the locking arms 24, 25, is triggered and locks the operating lever 5 relative to the cover 2 so that the cover 2 can be pivoted together with the operating lever 5 about the axis 3 in the upward direction clockwise.
  • the locking device 40 can be in the in Fig.
  • the release state of the lid 2 can this, as soon as the lever 5 in FIG. 1 shown vertical position to pivot about the pivot axis 3 together with the actuating lever 5, namely in a clockwise direction about the pivot axis 3, wherein the release element 6 is released by the locking mechanism.
  • the release element 6 the locking device 24, 25 has pulled out of the openings 28, 29 and the locking device in the FIG. 3 has taken position shown, the lid 2 can be opened or pivoted.
  • the snap-action mechanism 16 is in FIG. 9 schematically shown and consists of a wheel with partial sprockets according to a preferred embodiment and causes by its activation as a result of an angular displacement of the actuating lever 5 from the in FIG. 1 shown position in the Fig. 9 shown position, a rotation of the clutch shaft 8, which in turn triggers the snap-action mechanism 16 and on the one hand the control member 18, which in the illustrated embodiment as a vertical Finger is provided on a part of the snap-action mechanism, to set in a rotational movement, by which the control element 20 performs the displacement movement described above in or opposite to the direction A.
  • the snap-action mechanism 9 of the shift carriage 17 has three contacts in a 3-pole switch disconnector, of which only a contact 18 a is shown in the in Fig. 9 shown position with a mating contact or contact blade, which is provided on the housing side fixed to engage to produce in this way an electrical contact.
  • 2 fuse elements are used in the housing 1 under the cover, although this in the drawings after Fig. 1-9 not shown.
  • the displacement of the locking arms 24, 25 in the locking position relative to the cover 2 may further optionally also be effected by means of a further spring means which acts directly on the locking arms 24, 25.
  • any other mechanical connection may be provided between the snap-action mechanism and the control element 20, for example a cam follower or the like.
  • the locking arms 24, 25 are symmetrical to each other on both sides of the release element 6 and the control element 20 and are designed such that they are able to intervene in the openings 28, 29 of the cover 2 with its one end.
  • the locking arms 24, 25 are provided practically mirror-symmetrical to the housing axis.
  • the switch-disconnector according to the invention is preferably placed on conventional busbars with the aid of an adapter 70, the adapter 70 serving to establish an electrical contact between the switch-disconnector and the busbar system.
  • the switch-disconnector according to the invention is designed in particular for high currents of, for example, 6,300 amperes and has an operator-independent function, i. a snap-action mechanism is used, which contains a force store for switching the contacts between the switch-on state and the switch-off state of the switch-disconnector.
  • a significant advantage of the present invention is that the actuating lever or rocker arm includes two functions, namely switching between the on state and the off state of the circuit breaker on the one hand and the opening of the cover for the exchange of security elements or for manipulation within the housing on the other hand, the Rocker arm to open the lid during the opening process firmly locked with the lid, so that not the lid itself, but only the rocker arm must be taken to open the lid or close.
  • the actuating lever or rocker arm includes two functions, namely switching between the on state and the off state of the circuit breaker on the one hand and the opening of the cover for the exchange of security elements or for manipulation within the housing on the other hand, the Rocker arm to open the lid during the opening process firmly locked with the lid, so that not the lid itself, but only the rocker arm must be taken to open the lid or close.
  • circuit breaker fuse elements are arranged in the housing on the underside of the lid, so that the cover can be opened or closed to replace the fuse elements in the manner described.
  • a locking device can be activated, wherein in the off state after actuation of the release device, the locking device, preferably in the form of locking arms, in the deactivated position lockable or detectable. In this operating state, fuse elements can be exchanged or other manipulations carried out in the circuit breaker with the lid open.
  • FIG. 10 shows an exploded view of the load breaker switch according to the invention, wherein like elements compared to Fig. 1 to 9 are provided with the same reference numbers.
  • the switch-disconnector consists of the cover 2, on the underside of which, for example, three securing elements 73 are arranged, of which only one securing element is denoted by 73.
  • a receiving contact device 72 is furthermore provided, wherein receptacle contacts 72a, 72b are used per pole, which serve to receive the contacts of the fuse element 73 in the state in which the cover 2 is closed. The same applies to the other contact pairs.
  • the switching carriage 17 which also has per pole, a contact pair 18a, 18b, which projects from the shift carriage both upwards and downwards.
  • connection device 71 with input and output terminals, of which in each case only one contact with 74 or 75 is designated. These ports 74, 75 are located in the illustrated embodiment, each end face of the circuit breaker. With regard to the terminal indicated at 74 and 75, the terminal device comprises two contacts 71a, 71b which form an interruption of the conductor within the housing and can be contacted in a known manner by the contacts 18a, 18b of the switch carriage 17.
  • the contacts 18a, 18b, the switching slide 17 are also provided per pole are up and down and are therefore with both the contacts 71a, 71b of the connection device, as well as with the mating contacts not shown in the receiving contacts 72a, 72b brought into contact when the load disconnector in In the off state of the switching carriage 17 is shifted so that its contacts 18a, 18b contact neither the terminal 71 nor the receiving contact 72, so that the flow of current between the terminals 74, 75 via the fuse elements 73rd is interrupted.
  • FIG. 10 It can also be seen that the devices described above are arranged substantially one above the other, whereby the switch-disconnector has an extremely compact shape.
  • the fuse elements 73 are located directly below and on the lower surface of the lid 2, so that in the off state after opening the lid 2, the fuse elements are immediately accessible.
  • connection device 71 is preferably electrically connected via an adapter to the current busbar system, not shown.
  • Fig. 10 is the housing located below the lid 2, surrounding the units shown omitted to facilitate the description.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)

Claims (9)

  1. Interrupteur-sectionneur comportant un boîtier (1) et un couvercle (2) monté pivotant dessus, comportant un mécanisme de commande à rupture brusque (16) pour générer respectivement interrompre une connexion électrique entre des contacts associés, et comportant un levier d'actionnement pour la mise en et hors service, un élément de libération (6) et un mécanisme de blocage (18, 20),
    caractérisé en ce que
    l'élément de libération (6) est commandé pour libérer le couvercle (2) par le biais du mécanisme de blocage (18, 20), selon lequel l'élément de libération (6) est couplé à un système de verrouillage (24, 25) pour verrouiller le couvercle (2),
    dans la position de mise hors service du levier d'actionnement (5), l'élément de libération (6) étant actionnable en déplaçant le système de verrouillage (24, 25), et
    un système de fermeture (40) est prévu réglable en et hors contact avec le système de verrouillage (24, 25).
  2. Interrupteur-sectionneur selon la revendication 1,
    caractérisé en ce que
    le système de fermeture (40) présente des fentes (46, 48) réalisées par niveaux, lesquelles sont traversées par des portions d'extrémité (24a, 25a) du système de verrouillage (24, 25).
  3. Interrupteur-sectionneur selon une des revendications précédentes,
    caractérisé en ce que le système de fermeture (40) est prévu réglable sur une face frontale (38) du boîtier (1) le long de systèmes de guidage (42, 44).
  4. Interrupteur-sectionneur selon la revendication 2,
    caractérisé en ce que
    les portions d'extrémité (24a, 25a) du système de verrouillage (24, 25) présentent des portions recourbées.
  5. Interrupteur-sectionneur selon une des revendications précédentes,
    caractérisé en ce que
    le système de verrouillage (24, 25) est composé de deux bras de verrouillage (24, 25) sensiblement symétriques par rapport à l'axe du boîtier.
  6. Interrupteur-sectionneur selon la revendication 5
    caractérisé en ce que
    les bras de verrouillage (24, 25) présentent des surfaces obliques (32) qui sont en appui avec des dents (30, 31) dépassant latéralement des éléments de libération (6) pendant le mouvement de l'élément de libération (6).
  7. Interrupteur-sectionneur selon au moins une des revendications précédentes,
    caractérisé en ce que
    les bras de verrouillage (24,25) viennent s'appliquer sur des ouvertures respectivement des fentes (28, 29) formées sur une face frontale (2a) du couvercle (2) pour verrouiller le couvercle.
  8. Interrupteur-sectionneur selon la revendication 6,
    caractérisé en ce que
    chaque bras de verrouillage (24, 25) présente des rainures de guidage (32a) formées par des surfaces obliques (32) parallèles les unes aux autres.
  9. Interrupteur-sectionneur selon une des revendications précédentes,
    caractérisé en ce que,
    dans le boîtier (1) en dessous du couvercle (2), des compartiments de réception d'éléments de protection sont prévus.
EP08774535.2A 2007-09-11 2008-06-30 Interrupteur-sectionneur Active EP2198440B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200710043137 DE102007043137B3 (de) 2007-09-11 2007-09-11 Lasttrennschalter
PCT/EP2008/058382 WO2009033838A1 (fr) 2007-09-11 2008-06-30 Interrupteur-sectionneur

Publications (2)

Publication Number Publication Date
EP2198440A1 EP2198440A1 (fr) 2010-06-23
EP2198440B1 true EP2198440B1 (fr) 2014-06-04

Family

ID=40076275

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08774535.2A Active EP2198440B1 (fr) 2007-09-11 2008-06-30 Interrupteur-sectionneur

Country Status (4)

Country Link
EP (1) EP2198440B1 (fr)
DE (1) DE102007043137B3 (fr)
ES (1) ES2476255T3 (fr)
WO (1) WO2009033838A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3082995B1 (fr) 2018-06-22 2020-07-31 Hager Electro Sas Dispositif mobile pour porte-fusibles et porte-fusibles associe

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO893680D0 (no) * 1989-09-14 1989-09-14 Eb Distribusjon Sikringslastskillebryter.
DE9101973U1 (fr) 1991-02-20 1992-06-17 Lindner Gmbh Fabrik Elektrischer Lampen Und Apparate, 8600 Bamberg, De
NL9100415A (nl) * 1991-03-07 1992-10-01 Tech Handelsmaatschappij Distr Samenstel van een elektrische schakelaar en een zekeringhouder.
DE4210953C2 (de) * 1992-04-02 2002-07-18 Efen Gmbh Lastschaltleiste
FR2729252B1 (fr) * 1995-01-09 1997-03-28 Legrand Sa Coupe-circuit au porte-fusible duquel il est associe un organe de blocage
DE102004024787A1 (de) * 2004-05-17 2005-12-15 Efen Gmbh Verriegelbare Schaltleiste
DE102005058849A1 (de) * 2005-12-09 2007-06-21 Weber Ag NH-Lastschaltleiste

Also Published As

Publication number Publication date
DE102007043137B3 (de) 2009-01-02
EP2198440A1 (fr) 2010-06-23
ES2476255T3 (es) 2014-07-14
WO2009033838A1 (fr) 2009-03-19

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