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EP0340075B1 - Branch terminal for connection of an insulated overhead line to an insulated branch conductor - Google Patents

Branch terminal for connection of an insulated overhead line to an insulated branch conductor Download PDF

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Publication number
EP0340075B1
EP0340075B1 EP89401066A EP89401066A EP0340075B1 EP 0340075 B1 EP0340075 B1 EP 0340075B1 EP 89401066 A EP89401066 A EP 89401066A EP 89401066 A EP89401066 A EP 89401066A EP 0340075 B1 EP0340075 B1 EP 0340075B1
Authority
EP
European Patent Office
Prior art keywords
conductor
insulated
shells
overhead line
tap
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
EP89401066A
Other languages
German (de)
French (fr)
Other versions
EP0340075A1 (en
Inventor
Michel Delin
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Niled SA
Original Assignee
Niled SA
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Filing date
Publication date
Application filed by Niled SA filed Critical Niled SA
Publication of EP0340075A1 publication Critical patent/EP0340075A1/en
Application granted granted Critical
Publication of EP0340075B1 publication Critical patent/EP0340075B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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

Definitions

  • the present invention relates to a branch terminal for connecting a conductor of an insulated overhead line to an insulated branch conductor.
  • Terminals which comprise two half-shells of insulating material and which are connected together by a clamping screw.
  • Each half-shell has two channels, said channels facing each other and one of these being intended to receive the conductor of the overhead line, while the other is intended to receive the branch conductor.
  • Each half-shell is hollowed out of a housing intended to receive a contact strip which extends from one channel to the other channel and which is provided with teeth projecting in each channel so that, when tightening by the screw of the half-shells, the teeth pass through the insulators of the two conductors and thus provide the electrical connection.
  • Such a terminal is known from document DE-U-8704948.
  • Such branch terminals have a number of drawbacks.
  • the connection thus obtained is not waterproof, which in the long run presents a significant drawback.
  • the installation of the terminal is not very easy, because it is necessary to separate the half-shells from one another, place them on the conductors and assemble them with the screw provided for this purpose.
  • One of the aims of the present invention is, in particular, to remedy these drawbacks and to produce a terminal which offers complete safety from the point of view of sealing and which is much simpler and more practical to use than known terminals.
  • the terminal according to the invention is of the type comprising two half-shells of insulating material connected together by means allowing a certain sliding and a certain pivoting of one relative to the other, each half-shell comprising, at less, two parallel housings intended to each receive a contact rod, said housings being opposite, and each contact rod contact comprising on its face turned opposite the corresponding bar, in the vicinity of one end, teeth intended to perforate the insulation of the overhead line conductor and in the vicinity of the other end of the teeth intended to pass through the insulation of the bypass conductor, and a screw passing through a flared hole in one of the half-shells and screwing into a thread of the other half-shell in order to bring said half-shells together and to enclose the conductors, said terminal being characterized in that an elastic seal is interposed and inserted between the two half-shells, said elastic seal being made in one piece and being shaped to present a duct open laterally to allow the passage of the conductor of the overhead line and a second duct intended for receiving the
  • the elastic seal tends to maintain the terminal in a position which facilitates its positioning on the overhead line conductor, while the bypass conductor is held in the second conduit and when the half-shells are tightened. , the seal seals along the slots through which the teeth of the contact bars pass.
  • the slots of the seal which are crossed by the teeth of the contact bars are bordered externally by beads cooperating with corresponding notches of the half-shells.
  • the seal comprises a flexible and elastic bar supporting a cap.
  • a cap supporting a cap.
  • one of the half-shells has laterally, on two walls opposite, a handle, while the other half-shell has on the corresponding walls of the arches cooperating with said handles.
  • the screw is of the type comprising a head provided with means for taking a key and connected to said screw with a primer of rupture so that at a determined tightening torque the head separates from the screw, between the head and the screw a flat part allowing the grip of a tool being provided and having a dimension greater than that of the head. Thanks to the fact that the flat part has a dimension slightly greater than that of the head, the key used to tighten the screw and cooperating with the head can only slide on said flat part and it is therefore ensured that when the tightening torque will be reached the head will separate from the body of the screw.
  • Figure 1 is an exploded perspective view of a branch terminal according to the invention.
  • Figure 2 is an elevational view of the terminal of Figure 1 mounted.
  • Figure 3 is an elevational view showing the terminal permanently fixed.
  • the terminal shown in the figures is intended to be used to make a branch from a conductor of an isolated overhead line.
  • the terminal comprises a first half-shell 1, a second half-shell 2, an insulating joint 3 and four contact bars 5.
  • the half-shell 1 is made of an electrically insulating material and is formed of a body having, a bottom 11 and four side walls 12, 13, 14 and 15.
  • the bottom 11, in its central part, is pierced with a blind hole 7 provided with a thread 8.
  • Parallel to the walls 13 and 15 extend two partitions 17 which provide two housings 9 with said walls.
  • Each housing 9, in the vicinity of one end has a projection 10.
  • the walls 13 and 15 each have a large notch 19 and a smaller notch 20, corresponding notches being provided in the partitions 17.
  • Each housing 9 is intended to receive a bar 5 the latter being made of a material which is good conductor of electricity and which takes the form of a parallelepiped with, at one end on one face a recess 21 corresponding to the projection 10 and on the face opposite to that provided with said recess 21, at one end three teeth 22, 23 and 24 and at the other end two teeth 25 and 26.
  • the sides 13 and 15 are each integral with a handle 28.
  • the second half-shell is made of insulating material and has a general shape substantially similar to the first half-shell 1. It has four side walls 32, 33, 34 and 35, the walls 33 and 35 each having a large notch 39 corresponding to the notches 19 and a smaller notch 40 corresponding to the notches 20.
  • the half-shell 2 has in its central outer part a rounded domed part 41 pierced with an axial hole 37 which widens from the internal part of said half-shell 2 to the upper end of the domed part 41.
  • the half-shell 2 has internally housings 30 corresponding to the housings 9 and provided in the vicinity of the wall 34 with a projection, not visible in the drawings, and identical to the projections 10.
  • the walls 33 and 35 each have in their central part a hoop 38 slightly projecting and intended to cooperate with the bottom of the handles 28.
  • the axial hole 37 is intended to be crossed by a screw 45 for assembling the shells 1 and 2.
  • the screw 45 has at one end a thread 46 intended to cooperate with the thread 8 of the blind hole 7 and at the other end a flange 47 intended to cooperate with the curved surface 41, the flange being extended by a flat part 48 itself extended by a hexagon 49 with the interposition of a breaking primer 50.
  • the screw 45 is made, for example, of zamak and the thread 46 has a shape which, when combined with the thread 8, prevents the threads of said thread from being bent and sheared.
  • the flat part 48 is produced so that a tightening key mounted on the hexagon 49 cannot at the same time cooperate with said flat part 48.
  • the seal 3 is made of a flexible and elastic material and comprises a conduit 52 pierced by four slots 53 intended to be crossed by the teeth 25 and 26 of the four bars 5, two of which are arranged in the housings 9 and the other two in the housings 30.
  • the conduit 52 is intended to receive an insulated bypass conductor 57 whose free end is intended to project at one end of said conduit and to receive a cap 55 connected to the joint by a flexible and elastic bar 56.
  • the cap 55 is frustoconical so that the free end of the conductor is forced into said cap and so that it is protected.
  • the gasket 3 has in its central part a hole (not visible in the drawings) for the passage of the screw 45 and, a second conduit 58 with a C section having four slots 60 intended to be crossed by the teeth 22, 23 and 24 of the four corresponding bars 5.
  • the conduit 58 is intended to receive a conductor isolated from an overhead line and, thanks to the lateral opening, the lateral terminal can be easily mounted on said conductor 70.
  • the slots 60 are bordered on the outer side by beads 61 which are intended to cooperate with the notches 19 of the half-shell 2 and the notches 39 of the half-shell 1, while the edges 62 adjacent to the lateral opening of the conduit 58 are intended to cooperate with the free edges of the walls 12 and 32.
  • the slots 53 are also bordered by beads 63 intended to cooperate with the notches 20 and 30.
  • the terminal is delivered assembled as shown in FIG. 2 and the seal 3 maintains the half-shells 1 and 2 in a position ready for use, the arches 38 by co-operating with the bottom of the handles 28 constitute, on the one hand , a stopper ensuring the connection between the half-shells and, on the other hand, a joint.
  • the terminal is posed by engaging the conductor 70 in the conduit 58, the bypass conductor 57 being placed in the conduit 52 and its free end protected by the cap 55, then the screw 45 is tightened using a key cooperating with the hexagon 49 until it breaks along the primer 50.
  • the teeth 22, 23 and 24 pass through the insulator of the conductor 70, while the teeth 25 and 26 are inserted into the conductor 57 after passing through the insulator thereof so that the electrical connection between these two conductors is achieved.
  • the beads of the seal 3 are, during tightening, compressed around the slots and thus ensure sealing.

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Description

La présente invention vise une borne de dérivation pour le raccordement d'un conducteur d'une ligne aérienne isolée à un conducteur de dérivation isolé.The present invention relates to a branch terminal for connecting a conductor of an insulated overhead line to an insulated branch conductor.

On connaît des bornes qui comprennent deux demi-coquilles en matière isolante et qui sont reliées entre elles par une vis de serrage. Chaque demi-coquille présente deux canaux, lesdits canaux se faisant vis-à-vis et l'un de ceux-ci étant destiné à recevoir le conducteur de la ligne aérienne, tandis que l'autre est destiné à recevoir le conducteur de dérivation. Chaque demi-coquille est creusée d'un logement destiné à recevoir une barrette de contact qui s'étend depuis un canal jusqu'à l'autre canal et qui est pourvue de dents faisant saillie dans chaque canal de manière que, lors du serrage par la vis des demi-coquilles, les dents traversent les isolants des deux conducteurs et assurent ainsi la liaison électrique. Une telle borne est connue du document DE-U-8704948.Terminals are known which comprise two half-shells of insulating material and which are connected together by a clamping screw. Each half-shell has two channels, said channels facing each other and one of these being intended to receive the conductor of the overhead line, while the other is intended to receive the branch conductor. Each half-shell is hollowed out of a housing intended to receive a contact strip which extends from one channel to the other channel and which is provided with teeth projecting in each channel so that, when tightening by the screw of the half-shells, the teeth pass through the insulators of the two conductors and thus provide the electrical connection. Such a terminal is known from document DE-U-8704948.

De telles bornes de dérivation présentent un certain nombre d'inconvénients. Le raccordement ainsi obtenu n'est pas étanche, ce qui à la longue présente un inconvénient important. La mise en place de la borne n'est pas très aisée, car il faut séparer les demi-coquilles l'une de l'autre, les poser sur les conducteurs et les assembler avec la vis prévue à cet effet.Such branch terminals have a number of drawbacks. The connection thus obtained is not waterproof, which in the long run presents a significant drawback. The installation of the terminal is not very easy, because it is necessary to separate the half-shells from one another, place them on the conductors and assemble them with the screw provided for this purpose.

L'un des buts de la présente invention est, notamment, de remédier à ces inconvénients et de réaliser une borne qui offre toute sécurité au point de vue de l'étanchéité et qui soit d'un emploi beaucoup plus simple et plus pratique que les bornes connues.One of the aims of the present invention is, in particular, to remedy these drawbacks and to produce a terminal which offers complete safety from the point of view of sealing and which is much simpler and more practical to use than known terminals.

La borne, selon l'invention est du type comprenant deux demi-coquilles en matière isolante reliées entre elles par des moyens permettant un certain coulissement et un certain pivotement de l'une par rapport à l'autre, chaque demi-coquille comportant, au moins, deux logements parallèles destinés à recevoir chacun un barreau de contact, lesdits logements se faisant vis-à-vis, et chaque barreau de contact de contact comportant sur sa face tournée en regard du barreau correspondant, au voisinage d'une extrémité, des dents destinées à perforer l'isolant du conducteur de la ligne aérienne et au voisinage de l'autre extrémité des dents destinées à traverser l'isolant du conducteur de dérivation, et une vis traversant par un trou évasé l'une des demi-coquilles et se vissant dans un taraudage de l'autre demi-coquille pour rapprocher lesdites demi-coquilles et enserrer les conducteurs, ladite borne étant caractérisée en ce qu'un joint élastique est interposé et inséré entre les deux demi-coquilles, ledit joint élastique étant réalisé en une seule pièce et étant conformé pour présenter un conduit ouvert latéralement pour permettre le passage du conducteur de la ligne aérienne et un second conduit destiné à recevoir le conducteur de dérivation, chaque conduit présentant des fentes permettant le passage des dents des barreaux de contact. Grâce à cette disposition, le joint élastique tend à maintenir la borne dans une position qui facilite sa mise en place sur le conducteur de la ligne aérienne, tandis que le conducteur de dérivation est maintenu dans le second conduit et lors du serrage des demi-coquilles, le joint assure l'étanchéité le long des fentes traversées par les dents des barreaux de contact.The terminal according to the invention is of the type comprising two half-shells of insulating material connected together by means allowing a certain sliding and a certain pivoting of one relative to the other, each half-shell comprising, at less, two parallel housings intended to each receive a contact rod, said housings being opposite, and each contact rod contact comprising on its face turned opposite the corresponding bar, in the vicinity of one end, teeth intended to perforate the insulation of the overhead line conductor and in the vicinity of the other end of the teeth intended to pass through the insulation of the bypass conductor, and a screw passing through a flared hole in one of the half-shells and screwing into a thread of the other half-shell in order to bring said half-shells together and to enclose the conductors, said terminal being characterized in that an elastic seal is interposed and inserted between the two half-shells, said elastic seal being made in one piece and being shaped to present a duct open laterally to allow the passage of the conductor of the overhead line and a second duct intended for receiving the bypass conductor, each conduit having slots allowing the passage of the teeth of the contact bars. Thanks to this arrangement, the elastic seal tends to maintain the terminal in a position which facilitates its positioning on the overhead line conductor, while the bypass conductor is held in the second conduit and when the half-shells are tightened. , the seal seals along the slots through which the teeth of the contact bars pass.

Suivant une caractéristique particulière et pour améliorer encore l'étanchéité, les fentes du joint qui sont traversées par les dents des barreaux de contact sont bordées extérieurement par des bourrelets coopérant avec des encoches correspondantes des demi-coquilles.According to a particular characteristic and to further improve sealing, the slots of the seal which are crossed by the teeth of the contact bars are bordered externally by beads cooperating with corresponding notches of the half-shells.

De préférence, le joint comporte une barrette souple et élastique supportant un capuchon. Ainsi, on peut protéger l'extrémité libre du conducteur de dérivation en engageant sur celle-ci ledit capuchon.Preferably, the seal comprises a flexible and elastic bar supporting a cap. Thus, one can protect the free end of the bypass conductor by engaging said cap thereon.

Suivant une caractéristique particulière, l'une des demi-coquilles comporte latéralement, sur deux parois opposées, une anse, tandis que l'autre demi-coquille comporte sur les parois correspondantes des arceaux coopérant avec lesdites anses. On réalise ainsi un moyen particulièrement simple permettant de relier les demi-coquilles entre elles, celles-ci pouvant néanmoins coulisser et pivoter l'une par rapport à l'autre.According to a particular characteristic, one of the half-shells has laterally, on two walls opposite, a handle, while the other half-shell has on the corresponding walls of the arches cooperating with said handles. This produces a particularly simple means for connecting the half-shells together, which can nevertheless slide and pivot relative to one another.

Un des inconvénients de la technique antérieure est également que, si le serrage de la vis permettant de rapprocher les demi-coquilles l'une de l'autre est trop important, on risque d'endommager les conducteurs, par contre, si celui-ci n'est pas suffisant la liaison électrique risque de ne pas être établie.One of the drawbacks of the prior art is also that, if the tightening of the screw making it possible to bring the half-shells together is too great, there is a risk of damaging the conductors, on the other hand, if the latter is not sufficient the electrical connection may not be established.

Une autre caractéristique de l'invention permet de remédier à cet inconvénient et à cet effet, la vis est du type comportant une tête pourvue de moyens pour la prise d'une clé et reliée à ladite vis avec une amorce de rupture de manière qu'à un couple de serrage déterminé la tête se sépare de la vis, entre la tête et la vis une partie méplate permettant la prise d'un outil étant prévue et ayant une dimension supérieure à celle de la tête. Grâce au fait que la partie méplate a une dimension légèrement supérieure à celle de la tête, la clé utilisée pour serrer la vis et coopérant avec la tête ne peut glisser sur ladite partie méplate et on est assuré par conséquent, que lorsque le couple de serrage sera atteint la tête se séparera du corps de la vis.Another characteristic of the invention makes it possible to remedy this drawback and, to this end, the screw is of the type comprising a head provided with means for taking a key and connected to said screw with a primer of rupture so that at a determined tightening torque the head separates from the screw, between the head and the screw a flat part allowing the grip of a tool being provided and having a dimension greater than that of the head. Thanks to the fact that the flat part has a dimension slightly greater than that of the head, the key used to tighten the screw and cooperating with the head can only slide on said flat part and it is therefore ensured that when the tightening torque will be reached the head will separate from the body of the screw.

L'invention va maintenant être décrite avec plus de détails en se référant à un mode de réalisation particulier donné à titre d'exemple seulement et représenté aux dessins annexés, dans lesquels :The invention will now be described in more detail with reference to a particular embodiment given by way of example only and shown in the accompanying drawings, in which:

Figure 1 est une vue en perspective éclatée d'une borne de dérivation, selon l'invention.Figure 1 is an exploded perspective view of a branch terminal according to the invention.

Figure 2 est une vue en élévation de la borne de la figure 1 montée.Figure 2 is an elevational view of the terminal of Figure 1 mounted.

Figure 3 est une vue en élévation montrant la borne fixée définitivement.Figure 3 is an elevational view showing the terminal permanently fixed.

La borne représentée aux figures est destinée à être utilisée pour réaliser à partir d'un conducteur d'une ligne aérienne isolée, une dérivation.The terminal shown in the figures is intended to be used to make a branch from a conductor of an isolated overhead line.

La borne comprend une première demi-coquille 1, une seconde demi-coquille 2, un joint isolant 3 et quatre barreaux de contact 5.The terminal comprises a first half-shell 1, a second half-shell 2, an insulating joint 3 and four contact bars 5.

La demi-coquille 1 est réalisée en une matière isolante électriquement et est formée d'un corps présentant, un fond 11 et quatre parois latérales 12, 13, 14 et 15. Le fond 11, dans sa partie centrale, est percé d'un trou borgne 7 pourvu d'un taraudage 8. Parallèlement aux parois 13 et 15 s'étendent deux cloisons 17 qui ménagent avec lesdites parois deux logements 9.The half-shell 1 is made of an electrically insulating material and is formed of a body having, a bottom 11 and four side walls 12, 13, 14 and 15. The bottom 11, in its central part, is pierced with a blind hole 7 provided with a thread 8. Parallel to the walls 13 and 15 extend two partitions 17 which provide two housings 9 with said walls.

Chaque logement 9, au voisinage d'une extrémité comporte une saillie 10.Each housing 9, in the vicinity of one end has a projection 10.

Les parois 13 et 15 comportent chacune une large encoche 19 et une encoche plus petite 20, des encoches correspondantes étant prévues dans les cloisons 17.The walls 13 and 15 each have a large notch 19 and a smaller notch 20, corresponding notches being provided in the partitions 17.

Chaque logement 9 est destiné à recevoir un barreau 5 celui-ci étant réalisé en une matière bonne conductrice de l'électricité et affectant la forme d'un parallélépipède avec, à une extrémité sur une face un décrochement 21 correspondant à la saillie 10 et sur la face opposée à celle pourvue dudit décrochement 21, à une extrémité trois dents 22, 23 et 24 et à l'autre extrémité deux dents 25 et 26.Each housing 9 is intended to receive a bar 5 the latter being made of a material which is good conductor of electricity and which takes the form of a parallelepiped with, at one end on one face a recess 21 corresponding to the projection 10 and on the face opposite to that provided with said recess 21, at one end three teeth 22, 23 and 24 and at the other end two teeth 25 and 26.

Les côtés 13 et 15 sont chacun solidaires d'une anse 28.The sides 13 and 15 are each integral with a handle 28.

La seconde demi-coquille est réalisée en matière isolante et a une forme générale sensiblement similaire à la première demi-coquille 1. Elle présente quatre parois latérales 32, 33, 34 et 35, les parois 33 et 35 comportant chacune une large encoche 39 correspondant aux encoches 19 et une encoche plus petite 40 correspondant aux encoches 20.The second half-shell is made of insulating material and has a general shape substantially similar to the first half-shell 1. It has four side walls 32, 33, 34 and 35, the walls 33 and 35 each having a large notch 39 corresponding to the notches 19 and a smaller notch 40 corresponding to the notches 20.

La demi-coquille 2 comporte dans sa partie centrale extérieure une partie bombée arrondie 41 percée d'un trou axial 37 qui va en s'évasant depuis la partie interne de ladite demi-coquille 2 jusqu'à l'extrémité supérieure de la partie bombée 41.The half-shell 2 has in its central outer part a rounded domed part 41 pierced with an axial hole 37 which widens from the internal part of said half-shell 2 to the upper end of the domed part 41.

La demi-coquille 2 comporte intérieurement des logements 30 correspondant aux logements 9 et pourvus au voisinage de la paroi 34 d'une saillie, non visible sur les dessins, et identique aux saillies 10.The half-shell 2 has internally housings 30 corresponding to the housings 9 and provided in the vicinity of the wall 34 with a projection, not visible in the drawings, and identical to the projections 10.

Les parois 33 et 35 comportent chacune dans leur partie centrale un arceau 38 légèrement en saillie et destiné à coopérer avec le fond des anses 28.The walls 33 and 35 each have in their central part a hoop 38 slightly projecting and intended to cooperate with the bottom of the handles 28.

Le trou axial 37 est destiné à être traversé par une vis 45 d'assemblage des coquilles 1 et 2. La vis 45 comporte à une extrémité un filetage 46 destiné à coopérer avec le taraudage 8 du trou borgne 7 et à l'autre extrémité une collerette 47 destinée à coopérer avec la surface bombée 41, la collerette étant prolongée par une partie méplate 48 elle-même prolongée par un six pans 49 avec interposition d'une amorce de rupture 50.The axial hole 37 is intended to be crossed by a screw 45 for assembling the shells 1 and 2. The screw 45 has at one end a thread 46 intended to cooperate with the thread 8 of the blind hole 7 and at the other end a flange 47 intended to cooperate with the curved surface 41, the flange being extended by a flat part 48 itself extended by a hexagon 49 with the interposition of a breaking primer 50.

La vis 45 est réalisée, par exemple, en zamak et le filetage 46 a une forme qui conjuguée avec le taraudage 8 évite le pliage et le cisaillement des filets dudit taraudage.The screw 45 is made, for example, of zamak and the thread 46 has a shape which, when combined with the thread 8, prevents the threads of said thread from being bent and sheared.

La partie méplate 48 est réalisée de manière qu'une clé de serrage montée sur le six pans 49 ne puisse en même temps coopérer avec ladite partie méplate 48.The flat part 48 is produced so that a tightening key mounted on the hexagon 49 cannot at the same time cooperate with said flat part 48.

Le joint 3 est réalisé en une matière souple et élastique et comporte un conduit 52 percé de quatre fentes 53 destinées à être traversées par les dents 25 et 26 des quatre barreaux 5 dont deux sont disposés dans les logements 9 et les deux autres dans les logements 30. Le conduit 52 est destiné à recevoir un conducteur isolé 57 de dérivation dont l'extrémité libre est destinée à faire saillie à l'une des extrémités dudit conduit et à recevoir un capuchon 55 relié au joint par un barreau souple et élastique 56. Le capuchon 55 est tronconique de manière que l'extrémité libre du conducteur s'enfonce à force dans ledit capuchon et qu'ainsi elle soit protégée.The seal 3 is made of a flexible and elastic material and comprises a conduit 52 pierced by four slots 53 intended to be crossed by the teeth 25 and 26 of the four bars 5, two of which are arranged in the housings 9 and the other two in the housings 30. The conduit 52 is intended to receive an insulated bypass conductor 57 whose free end is intended to project at one end of said conduit and to receive a cap 55 connected to the joint by a flexible and elastic bar 56. The cap 55 is frustoconical so that the free end of the conductor is forced into said cap and so that it is protected.

Le joint 3 comporte dans sa partie centrale un trou (non visible sur les dessins) pour le passage de la vis 45 et, un second conduit 58 à section en C comportant quatre fentes 60 destinées à être traversées par les dents 22, 23 et 24 des quatre barreaux 5 correspondants.The gasket 3 has in its central part a hole (not visible in the drawings) for the passage of the screw 45 and, a second conduit 58 with a C section having four slots 60 intended to be crossed by the teeth 22, 23 and 24 of the four corresponding bars 5.

Le conduit 58 est destiné à recevoir un conducteur isolé d'une ligne aérienne et grâce à l'ouverture latérale la borne latérale peut se monter aisément sur ledit conducteur 70.The conduit 58 is intended to receive a conductor isolated from an overhead line and, thanks to the lateral opening, the lateral terminal can be easily mounted on said conductor 70.

Les fentes 60 sont bordées du côté extérieur par des bourrelets 61 qui sont destinés à coopérer avec les encoches 19 de la demi-coquille 2 et les encoches 39 de la demi-coquille 1, tandis que les bords 62 adjacents à l'ouverture latérale du conduit 58 sont destinés à coopérer avec les bords libres des parois 12 et 32.The slots 60 are bordered on the outer side by beads 61 which are intended to cooperate with the notches 19 of the half-shell 2 and the notches 39 of the half-shell 1, while the edges 62 adjacent to the lateral opening of the conduit 58 are intended to cooperate with the free edges of the walls 12 and 32.

Les fentes 53, du côté externe, sont, également, bordées par des bourrelets 63 destinés à coopérer avec les encoches 20 et 30.The slots 53, on the external side, are also bordered by beads 63 intended to cooperate with the notches 20 and 30.

La borne est livrée montée telle que représentée à la figure 2 et le joint 3 maintient les demi-coquilles 1 et 2 dans une position prête à l'utilisation, les arceaux 38 en coppérant avec le fond des anses 28 constituent, d'une part, une butée assurant la liaison entre les demi-coquilles et, d'autre part, une articulation.The terminal is delivered assembled as shown in FIG. 2 and the seal 3 maintains the half-shells 1 and 2 in a position ready for use, the arches 38 by co-operating with the bottom of the handles 28 constitute, on the one hand , a stopper ensuring the connection between the half-shells and, on the other hand, a joint.

La borne se pose en engageant le conducteur 70 dans le conduit 58, le conducteur de dérivation 57 étant mis en place dans le conduit 52 et son extrémité libre protégée par le capuchon 55, puis on serre la vis 45 à l'aide d'une clé coopérant avec le six pans 49 jusqu'a la rupture de celui-ci le long de l'amorce 50. Lors de ce serrage, les dents 22, 23 et 24 traversent l'isolant du conducteur 70, tandis que les dents 25 et 26 s'insèrent dans le conducteur 57 après avoir traversé l'isolant de celui-ci de sorte que, la liaison électrique entre ces deux conducteurs soit réalisée. Les bourrelets du joint 3 sont, lors du serrage, comprimés autour des fentes et assurent ainsi l'étanchéité.The terminal is posed by engaging the conductor 70 in the conduit 58, the bypass conductor 57 being placed in the conduit 52 and its free end protected by the cap 55, then the screw 45 is tightened using a key cooperating with the hexagon 49 until it breaks along the primer 50. During this tightening, the teeth 22, 23 and 24 pass through the insulator of the conductor 70, while the teeth 25 and 26 are inserted into the conductor 57 after passing through the insulator thereof so that the electrical connection between these two conductors is achieved. The beads of the seal 3 are, during tightening, compressed around the slots and thus ensure sealing.

Si on veut démonter la borne, on peut desserrer la vis 45 en utilisant une clé coopérant avec la partie méplate 48.If you want to dismantle the terminal, you can loosen the screw 45 using a key cooperating with the flat part 48.

Claims (5)

  1. A tap terminal for connecting one conductor of an insulated overhead
       line to one insulated tap conductor and being of the type comprising two half-shells (1 and 2) of insulating material connected together by means (28, 38) allowing a certain amount of sliding and pivoting of the said half-shells with respect to one another, each half-shell including at least two parallel seats (9, 30), each of which is intended to receive one contact bar (5), the said seats being formed face to face and each contact bar (5) having on the face of it opposite the corresponding bar and in the vicinity of one end, teeth (22, 23, 24) intended to pierce the insulation of the conductor of the overhead line, and in the vicinity of the other end teeth (25, 26) intended to pass through the insulation of the tap conductor, and a screw passing by a widened hole (37) through one of the half-shells (2) and being screwed into a tapped hole (8) in the other half-shell (1) in order to bring the said half-shells together and grip the conductors, characterized in that
    an elastic packing (3) is interposed and inserted between the two half-shells (1 and 2), the said elastic packing (3) being realized in one piece and shaped to exhibit one conduit (58) open laterally in order to allow the conductor of the overhead line to pass through and one second conduit (52) intended to receive the tap conductor (57), each conduit exhibiting slots (53, 60) allowing the teeth (22, 23, 24, 25 and 26) on the contact bars (5) to pass through.
  2. A tap terminal as in Claim 1 for connecting one conductor of an
       insulated overhead line to one insulated tap conductor, characterized in that the slots (53, 60) in the packing (3) through which the teeth on the contact bars (5) pass, are edged externally by flanges cooperating with corresponding notches (19, 20, 39, 30) in the half-shells (1, 2).
  3. A tap terminal as in Claim 1 for connecting one conductor of an
       insulated overhead line to one insulated tap conductor, characterized in that the packing (3) includes a small flexible and elastic bar (56) supporting a cap (55).
  4. A tap terminal as in Claim 1 for connecting one conductor of an
       insulated overhead line to one insulated tap conductor, characterized in that one of the half-shells (1) has laterally on two opposite walls a loop (28), whilst the other half-shell (2) has on the corresponding walls arches (38) which cooperate with the said loops (28).
  5. A tap terminal as in Claim 1 for connecting one conductor of an
       insulated overhead line to one insulated tap conductor and being of the type in which the screw (45) has a head which is provided with means of fitting a spanner and is connected to the said screw (45) by a predetermined point of break (50) so that at a certain tightening torque the head separates from the screw (45), the portion of the screw (45) adjacent to the head including means of fitting a tool, characterized in that the said means of fitting a tool consist of a flat portion (48) having a dimension greater than that of the head (49).
EP89401066A 1988-04-27 1989-04-18 Branch terminal for connection of an insulated overhead line to an insulated branch conductor Expired - Lifetime EP0340075B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8805615 1988-04-27
FR8805615A FR2630865B1 (en) 1988-04-27 1988-04-27 DERIVATION TERMINAL FOR CONNECTING A CONDUCTOR OF AN ISOLATED OVERHEAD LINE TO AN INSULATED BYPASS CONDUCTOR

Publications (2)

Publication Number Publication Date
EP0340075A1 EP0340075A1 (en) 1989-11-02
EP0340075B1 true EP0340075B1 (en) 1993-04-07

Family

ID=9365745

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89401066A Expired - Lifetime EP0340075B1 (en) 1988-04-27 1989-04-18 Branch terminal for connection of an insulated overhead line to an insulated branch conductor

Country Status (6)

Country Link
US (1) US5015198A (en)
EP (1) EP0340075B1 (en)
AU (1) AU3230189A (en)
ES (1) ES2039890T3 (en)
FR (1) FR2630865B1 (en)
GR (1) GR3007576T3 (en)

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GB9308515D0 (en) * 1993-04-15 1993-06-09 Sicame Electrical Dev Ltd Improvements relating to underground cable connectors
EP0632527B1 (en) * 1993-06-29 1999-01-20 KRONE Aktiengesellschaft Connection module
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EP0954887A1 (en) * 1997-01-22 1999-11-10 Siemens Aktiengesellschaft Connecting device for at least one non-bared conductor
FR2762449B1 (en) * 1997-04-22 1999-06-25 App Mat Elect Const ELECTRICAL CONNECTOR TO WHICH A THICK HOLDER IS ASSOCIATED, AND CORRESPONDING THICK HOLDER
FR2780556B1 (en) * 1998-06-24 2000-09-15 App Mat Elect Const CONNECTION ACCESSORY FOR DERIVATIVE CABLE TO BE CONNECTED TO A MAIN CABLE, AND BYPASS CONNECTOR PROVIDED WITH SUCH A CONNECTION ACCESSORY
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Also Published As

Publication number Publication date
US5015198A (en) 1991-05-14
AU3230189A (en) 1989-11-02
ES2039890T3 (en) 1993-10-01
FR2630865A1 (en) 1989-11-03
EP0340075A1 (en) 1989-11-02
FR2630865B1 (en) 1991-12-13
GR3007576T3 (en) 1993-08-31

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