EP1394900A1 - Connector for two electrical power cables and connection including this connector - Google Patents

Connector for two electrical power cables and connection including this connector Download PDF

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Publication number
EP1394900A1
EP1394900A1 EP03300099A EP03300099A EP1394900A1 EP 1394900 A1 EP1394900 A1 EP 1394900A1 EP 03300099 A EP03300099 A EP 03300099A EP 03300099 A EP03300099 A EP 03300099A EP 1394900 A1 EP1394900 A1 EP 1394900A1
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EP
European Patent Office
Prior art keywords
connector
insulating
cable
insulating jacket
connection
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Granted
Application number
EP03300099A
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German (de)
French (fr)
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EP1394900B1 (en
Inventor
Josef Cardinaels
Jo De Buyst
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Nexans SA
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Nexans SA
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Publication of EP1394900B1 publication Critical patent/EP1394900B1/en
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    • 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
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw

Definitions

  • the present invention relates to a connector of two cables of electrical energy and a connection comprising such a connector.
  • It relates more precisely to a connector of two cables medium voltage electrical energy, each with a conductor surrounded by an insulating jacket and possibly a semiconductor layer, connector with screwed tubular contacts and intended connecting together the exposed ends of said conductors engaged in said contacts and held in place by screws.
  • a cable connection comprising such a connector is known from patent document GB 2 254 739.
  • the connector used in this known cable connection is covered with a retractable insulating sheath hot.
  • the sheath is positioned above the connector and is retracted by heating then, after the heating operation, remains in position retracted.
  • This sheath therefore tends to take the form of the connector which is in below it and the insulating jacket of each cable.
  • a sheet of insulating putty is wrapped around the connector before the sheath retraction.
  • the difference in diameter between the insulating jacket and the connector is essentially due to the fact that this set of screwed contacts generally covers a large range of sections, for example from 50 to 300 mm 2 , and is therefore larger than the insulating jacket. of each cable.
  • a screwed connector is for example known from patent document GB 2 262 396.
  • the connector has an eccentric arrangement with respect to the conductor. This is due to the presence of the screws which further increase the dimensional difference between the insulating jacket and the connector. The heads of the screws and threads make sharp points on the surface of the connector.
  • connection is provided with two molded semi-conductive rubber covers covering part of the insulating jacket of the corresponding cable and joining each other above of the connector, each of said covers having an internal shape adapted to be engaged above the connector and to fill the space formed by the difference in dimension between the connector and the casing insulator of the corresponding cable.
  • the insulating jacket can be retract over several millimeters and up to 10 mm.
  • Such a connector is not therefore not suitable for ensuring this recovery over time and in the event of removal of the insulating jacket, removal in itself conventional on this type of cables, an empty space is created which is suitable for breakdowns as was seen above.
  • the invention proposes to solve this technical problem and for do this it relates to a connector of two electrical power cables from medium voltage, each comprising a conductor surrounded by a insulating jacket, connector comprising screwed tubular contacts and intended to connect together the exposed ends of the conductors engaged in the contacts and held in place by screws, connector comprising at least one of its ends an extension means integral with the connector and intended to cover part of the insulating envelope cable, characterized in that said covering means covers the insulating jacket over a length of more than 10 mm.
  • the extension means is arranged during the placement of the connector, without additional manipulation.
  • said covering means covers the envelope insulating over a length between 10 and 20 mm.
  • said extension means has a rounded free end.
  • This extension means protrudes above the envelope insulating cable or on this envelope and forms a screen in this area of connector end transition, where large electric fields exist, local electrical constraints can cause discharges partial and connection faults. Thanks to its free end rounded, the formed screen ensures a good distribution of the fields electric.
  • the extension means is consisting of a rigid annular flange disposed at the periphery of the connector.
  • the flange is an integral part of the connector.
  • the extension means is consisting of a flexible semiconductor rubber skirt attached to the periphery of the connector.
  • the invention also relates to a connection of two cables.
  • medium voltage electrical energy each comprising at least one conductor surrounded by an insulating envelope, connection comprising a connector as specified above and an insulating sheath suitable for cover at least the connector intimately.
  • the space between the connector and the casing insulation of the corresponding cable is filled with a layer of insulating putty.
  • This layer of insulating mastic is provided by the insulating sheath during its retraction and serves to fill any remaining air pockets.
  • the space between the layer of insulating mastic and each screw is filled with conductive sealant or a cover made of semiconductor material.
  • Figure 1 is a longitudinal sectional view of a connector according to the invention according to a first embodiment.
  • Figure 2 is a partial view in longitudinal section of a connection of two cables according to the invention according to this first mode of production.
  • Figure 3 is a longitudinal sectional view of a connector according to the invention according to a second embodiment.
  • Figure 4 is a partial view in longitudinal section of a connection according to the invention according to this second embodiment.
  • the following description relates to the connection of two cables medium voltage over 10 kV. Although single-conductor cables be described, the invention also applies to multi-conductor cables.
  • FIG. 1 therefore represents a connector according to the invention according to a first embodiment.
  • This connector 1 of conductors is made up in a known manner of self of a cylindrical body pierced with two longitudinal cylindrical orifices 2, 3 said contacts and intended to receive the ends of conductors, once bare cable ends.
  • longitudinal holes 2, 3 open respectively threaded bores 4, 5 intended to receive each a locking screw ensuring the electrical contact of each driver.
  • the connector 1 has at each of its ends a extension means integral with connector 1 consisting of a flange rigid annular 6, 7 disposed at the periphery of the connector, plus precisely of external diameter equal to that of the connector and of diameter internal superior to that of the insulating jacket of the largest cable of the range covered.
  • the covering means covers the insulating envelope 11 over a length greater than 10 mm and preferably between 10 and 20 mm.
  • the flange 6, 7 is of a length of about 15 mm.
  • the flange 6 is preferably an integral part of the connector 1 and its free end is rounded.
  • Figure 2 partially shows a connection of two cables with the connector shown in Figure 1. This connection being symmetrical about a vertical axis seen in the figure, only one cable connected is shown.
  • the cable is stripped at its end and the conductor 10 is fitted in contact 2, the insulating jacket 11 of the cable coming near the end of the contact 2.
  • the semiconductor coating 12 covering the envelope 11 is removed over a greater length in order to be covered by the heat-shrinkable or cold-insulating sheath 20, itself coated with a semiconductor layer 21.
  • the screws 8 of the connector are screwed to clamp the conductor 10 against the wall of the connector and the space above each screw 8 is filled with conductive sealant or a cover of semiconductor material 9.
  • the retractable sheath 20 is placed places and fits the external contour of connector 1 and the cable.
  • the flange 6 therefore projects above the insulating envelope 11 of the cable and screen form in this transition zone.
  • the sheath 20 is applied thereon leaving a relatively large space between on the one hand the flange 6 and the insulating jacket 11 of the cable and on the other hand between the sheath 20 and this envelope 11.
  • This space is easily filled with insulating mastic 13 which also fills the interfaces between the sheath 20 and the connector 1 and the insulating jacket 20 of the cable, the putty expelling air and ensuring a good electrical connection.
  • This layer of insulating putty is brought by the insulating sheath during its retraction.
  • FIG. 3 represents a connector according to the invention according to a second embodiment.
  • This connector 1 ′ of conductors is made up in a known manner of self of a cylindrical body pierced by two longitudinal cylindrical orifices 2 ', 3' once the cable ends are stripped. In these holes longitudinal 2 ', 3' respectively open threaded bores 4 ', 5' intended to each receive a locking screw ensuring electrical contact of each driver.
  • the connector 1 ' has at each of its ends a means extension integral with the connector 1 'consisting of a flexible skirt 6', 7 ' of semiconductor rubber attached to the periphery of the connector, plus precisely with an external diameter smaller than that of the connector and internal diameter adapted to the diameter of the smallest insulating jacket covered range cable, the end of this skirt being rounded.
  • the skirt 6 ′, 7 ′ forms a extension of a length of about 15 mm.
  • Figure 4 partially shows a connection of two cables with the connector shown in Figure 3. This connection being symmetrical about a vertical axis seen in the figure, only one cable connected is shown.
  • the cable is stripped at its end and the conductor 10 is fitted in contact 2 ', the insulating jacket 11 of the cable coming near the end of the connector 1 '.
  • the semiconductor coating 12 covering the sheath 11 is removed over a greater length in order to be covered by the heat-shrinkable or cold-insulating sheath 20, itself coated with a semiconductor layer 21.
  • the screws 8 'of the connector are screwed to clamp the conductor 10 against the wall of the connector and the space above each 8 'screw is filled with conductive sealant or a cover in 9 'semiconductor material.
  • the retractable sheath 20 is put in places and fits the external contour of the 1 'connector and the cable, providing a layer of insulating putty 13 which fills the irregularities of remaining area.
  • the skirt 6 ′ therefore projects from the insulating envelope 11 of the cable, intimately covers this envelope 11 and forms a screen thanks to its flexibility in this transition zone.
  • the internal diameter of the skirt 6 ' is chosen to adapt to the smallest diameter of the cable insulating jacket to be connected by connector 1 '.
  • the interfaces between the sheath 20 and the connector 1 and the casing insulation 20 of the cable are filled with insulating mastic 13.

Landscapes

  • Cable Accessories (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Multi-Conductor Connections (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Processing Of Terminals (AREA)

Abstract

The cylindrical block connector has two axial holes to receive the stripped ends of conductors. Within each hole there is a threaded lateral hole (4,5), receiving a locking screw. An insulating sleeve fits over the cable and connector. The connector comprises a cylindrical block pierced by two longitudinal cylindrical orifices (2,3), serving as contacts intended to receive the ends of conductors after these conductor ends have been stripped of insulation. Within each cylindrical orifice there is a threaded hole (4,5), perpendicular to the longitudinal axis, intended to receive a locking screw. At each end of the cylindrical block there is a peripheral skirt (6,7) defining a recess which is of the same diameter as the un-stripped cable. This covers the cable insulation for a length of between 10 and 20 mm. A further insulating sleeve then fits over a section of the cable outside the connector, and around the body of the connector itself.

Description

La présente invention se rapporte à un connecteur de deux câbles d'énergie électrique et une connexion comportant un tel connecteur.The present invention relates to a connector of two cables of electrical energy and a connection comprising such a connector.

Elle concerne plus précisément un connecteur de deux câbles d'énergie électrique de moyenne tension, comportant chacun un conducteur entouré d'une enveloppe isolante et éventuellement d'une couche semi-conductrice, connecteur comportant des contacts vissés tubulaires et destiné à connecter ensemble les extrémités mises à nu desdits conducteurs engagés dans lesdits contacts et maintenues au moyen de vis.It relates more precisely to a connector of two cables medium voltage electrical energy, each with a conductor surrounded by an insulating jacket and possibly a semiconductor layer, connector with screwed tubular contacts and intended connecting together the exposed ends of said conductors engaged in said contacts and held in place by screws.

Une connexion de câble comportant un tel connecteur est connue du document de brevet GB 2 254 739. Le connecteur utilisé dans cette connexion de câble connue est couvert d'une gaine isolante rétractable à chaud. La gaine est positionnée au-dessus du connecteur et est rétractée par chauffage puis, après l'opération de chauffage, reste en position rétractée. Cette gaine tend donc à prendre la forme du connecteur qui est en dessous d'elle et de l'enveloppe isolante de chacun des câbles. Cependant, il reste toujours des espaces libres aux emplacements où le diamètre change, c'est-à-dire entre l'enveloppe isolante et le connecteur, ainsi que des espaces libres à cause de l'irrégularité de forme du connecteur, en particulier les têtes des vis. Dans cette solution connue, pour combler les espaces libres, une feuille de mastic isolant est enroulé autour du connecteur avant la rétraction de la gaine.A cable connection comprising such a connector is known from patent document GB 2 254 739. The connector used in this known cable connection is covered with a retractable insulating sheath hot. The sheath is positioned above the connector and is retracted by heating then, after the heating operation, remains in position retracted. This sheath therefore tends to take the form of the connector which is in below it and the insulating jacket of each cable. However, there are always free spaces at the locations where the diameter changes, i.e. between the insulating jacket and the connector, as well as free spaces due to irregular shape of the connector, in particular the heads of the screws. In this known solution, to fill the spaces loose, a sheet of insulating putty is wrapped around the connector before the sheath retraction.

La différence de diamètre entre l'enveloppe isolante et le connecteur est essentiellement due au fait que cet ensemble de contacts vissés couvre généralement une plage importante de sections, par exemple de 50 à 300 mm2, et est donc plus grande que l'enveloppe isolante de chaque câble. Un tel connecteur vissé est par exemple connu du document de brevet GB 2 262 396. De plus, le connecteur a une disposition excentrée par rapport au conducteur. Ceci est dû à la présence des vis qui augmentent encore la différence dimensionnelle entre l'enveloppe isolante et le connecteur. Les têtes des vis et des taraudages font des points vifs sur la surface du connecteur. Le résultat est que la gaine isolante ne peut pas suivre fidèlement les contours de l'enveloppe isolante de chaque câble et des surfaces du connecteur, et que le mastic isolant est exposé à un champ électrique trop important juste aux emplacements les plus critiques sur le plan électrique. Ceci est un problème qui peut mener au claquage de la connexion surtout pour des applications à partir de 10 kVolts.The difference in diameter between the insulating jacket and the connector is essentially due to the fact that this set of screwed contacts generally covers a large range of sections, for example from 50 to 300 mm 2 , and is therefore larger than the insulating jacket. of each cable. Such a screwed connector is for example known from patent document GB 2 262 396. In addition, the connector has an eccentric arrangement with respect to the conductor. This is due to the presence of the screws which further increase the dimensional difference between the insulating jacket and the connector. The heads of the screws and threads make sharp points on the surface of the connector. The result is that the insulating sheath cannot faithfully follow the contours of the insulating jacket of each cable and the connector surfaces, and that the insulating mastic is exposed to too great an electric field just at the most critical locations on the map electric. This is a problem that can lead to connection breakdown especially for applications from 10 kVolts.

Une solution a été proposée qui est décrite dans le document de brevet EP 1 206 024.A solution has been proposed which is described in the document of EP patent 1 206 024.

Selon cette solution antérieure, la connexion est pourvue de deux capots moulés en caoutchouc semi-conducteur couvrant une partie de l'enveloppe isolante du câble correspondant et se rejoignant l'un l'autre au-dessus du connecteur, chacun desdits capots ayant une forme interne adaptée pour être engagé au-dessus du connecteur et pour remplir l'espace formé par la différence de dimension entre le connecteur et l'enveloppe isolante du câble correspondant.According to this previous solution, the connection is provided with two molded semi-conductive rubber covers covering part of the insulating jacket of the corresponding cable and joining each other above of the connector, each of said covers having an internal shape adapted to be engaged above the connector and to fill the space formed by the difference in dimension between the connector and the casing insulator of the corresponding cable.

Un tel agencement fournit un résultat électrique satisfaisant mais est de montage problématique. En effet, ces deux capots séparés entre eux et séparés du connecteur doivent être enfilés sur les extrémités de câble avant réalisation de la connexion des câbles par le connecteur et ensuite repoussés sur le connecteur avant mise en place de la gaine isolante.Such an arrangement provides a satisfactory electrical result but is problematic mounting. Indeed, these two covers separated from each other and separate from connector must be threaded over front cable ends connection of cables through the connector and then pushed back onto the connector before fitting the insulating sheath.

Il a par ailleurs été proposé dans le document de brevet DE 27 40 232 un connecteur de deux câbles d'énergie électrique, comportant chacun un conducteur entouré d'une enveloppe isolante, connecteur comportant des contacts vissés tubulaires et destiné à connecter ensemble les extrémités mises à nu des conducteurs engagées dans les contacts et maintenues au moyen de vis. Ce connecteur comporte à ses extrémités un prolongement faisant partie du connecteur et destiné à couvrir une partie de l'enveloppe isolante du câble. Ce recouvrement est d'une longueur de l'ordre de quelques millimètres.It has also been proposed in patent document DE 27 40 232 a connector of two electric power cables, each comprising a conductor surrounded by an insulating envelope, connector comprising tubular screw contacts and intended to connect the ends together exposed conductors engaged in the contacts and kept at screw means. This connector has an extension at its ends forming part of the connector and intended to cover part of the casing cable insulator. This overlap has a length of the order of a few millimeters.

Sur les câbles à moyenne tension, l'enveloppe isolante peut se rétracter sur plusieurs millimètres et jusqu'à 10 mm. Un tel connecteur n'est donc pas adapté à assurer ce recouvrement dans le temps et en cas de retrait de l'enveloppe isolante, retrait en soi classique sur ce type de câbles, un espace vide se crée propice aux claquages comme il a été vu plus haut.On medium voltage cables, the insulating jacket can be retract over several millimeters and up to 10 mm. Such a connector is not therefore not suitable for ensuring this recovery over time and in the event of removal of the insulating jacket, removal in itself conventional on this type of cables, an empty space is created which is suitable for breakdowns as was seen above.

L'invention se propose de résoudre ce problème technique et pour ce faire, elle concerne un connecteur de deux câbles d'énergie électrique de moyenne tension, comportant chacun un conducteur entouré d'une enveloppe isolante, connecteur comportant des contacts vissés tubulaires et destiné à connecter ensemble les extrémités mises à nu des conducteurs engagées dans les contacts et maintenues au moyen de vis, connecteur comportant à au moins une de ses extrémités un moyen de prolongement solidaire du connecteur et destiné à couvrir une partie de l'enveloppe isolante du câble, caractérisé en ce que ledit moyen de recouvrement couvre l'enveloppe isolante sur une longueur supérieure à 10 mm.The invention proposes to solve this technical problem and for do this it relates to a connector of two electrical power cables from medium voltage, each comprising a conductor surrounded by a insulating jacket, connector comprising screwed tubular contacts and intended to connect together the exposed ends of the conductors engaged in the contacts and held in place by screws, connector comprising at least one of its ends an extension means integral with the connector and intended to cover part of the insulating envelope cable, characterized in that said covering means covers the insulating jacket over a length of more than 10 mm.

Solidaire du connecteur, le moyen de prolongement est disposé lors de la mise en place du connecteur, sans manipulation supplémentaire.Solid with the connector, the extension means is arranged during the placement of the connector, without additional manipulation.

De préférence, ledit moyen de recouvrement couvre l'enveloppe isolante sur une longueur comprise entre 10 et 20 mm.Preferably, said covering means covers the envelope insulating over a length between 10 and 20 mm.

Selon un mode de réalisation préféré, ledit moyen de prolongement comporte une extrémité libre arrondie.According to a preferred embodiment, said extension means has a rounded free end.

Ce moyen de prolongement fait saillie au-dessus de l'enveloppe isolante du câble ou sur cette enveloppe et forme écran dans cette zone de transition d'extrémité du connecteur, où des champs électriques importants existent, les contraintes électriques locales pouvant entraíner des décharges partielles et des défauts de la connexion. Grâce à son extrémité libre arrondie, l'écran formé assure une bonne distribution des champs électriques.This extension means protrudes above the envelope insulating cable or on this envelope and forms a screen in this area of connector end transition, where large electric fields exist, local electrical constraints can cause discharges partial and connection faults. Thanks to its free end rounded, the formed screen ensures a good distribution of the fields electric.

Selon un premier mode de réalisation, le moyen de prolongement est constitué d'une bride annulaire rigide disposée à la périphérie du connecteur.According to a first embodiment, the extension means is consisting of a rigid annular flange disposed at the periphery of the connector.

De préférence, la bride est une partie intégrante du connecteur.Preferably, the flange is an integral part of the connector.

Selon un second mode de réalisation, le moyen de prolongement est constitué d'une jupe flexible de caoutchouc semi-conducteur fixée à la périphérie du connecteur. According to a second embodiment, the extension means is consisting of a flexible semiconductor rubber skirt attached to the periphery of the connector.

L'invention concerne également une connexion de deux câbles d'énergie électrique de moyenne tension, comportant chacun au moins un conducteur entouré d'une enveloppe isolante, connexion comportant un connecteur tel que précisé ci-dessus et une gaine isolante adaptée pour couvrir intimement au moins le connecteur.The invention also relates to a connection of two cables. medium voltage electrical energy, each comprising at least one conductor surrounded by an insulating envelope, connection comprising a connector as specified above and an insulating sheath suitable for cover at least the connector intimately.

Avantageusement, l'espace entre le connecteur et l'enveloppe isolante du câble correspondant est rempli d'une couche de mastic isolant.Advantageously, the space between the connector and the casing insulation of the corresponding cable is filled with a layer of insulating putty.

Cette couche de mastic isolant est apportée par la gaine isolante pendant sa rétraction et sert à remplir toutes poches d'air restantes.This layer of insulating mastic is provided by the insulating sheath during its retraction and serves to fill any remaining air pockets.

De préférence, l'espace entre la couche de mastic isolant et chaque vis est rempli de mastic conducteur ou d'un capot en matériau semi-conducteur.Preferably, the space between the layer of insulating mastic and each screw is filled with conductive sealant or a cover made of semiconductor material.

L'invention est décrite ci-après plus en détail à l'aide de figures ne représentant que des modes de réalisation préférés de l'invention.The invention is described below in more detail with the aid of figures representing only preferred embodiments of the invention.

La figure 1 est une vue en coupe longitudinale d'un connecteur conforme à l'invention selon un premier mode de réalisation.Figure 1 is a longitudinal sectional view of a connector according to the invention according to a first embodiment.

La figure 2 est une vue partielle en coupe longitudinale d'une connexion de deux câbles conforme à l'invention selon ce premier mode de réalisation.Figure 2 is a partial view in longitudinal section of a connection of two cables according to the invention according to this first mode of production.

La figure 3 est une vue en coupe longitudinale d'un connecteur conforme à l'invention selon un second mode de réalisation.Figure 3 is a longitudinal sectional view of a connector according to the invention according to a second embodiment.

La figure 4 est une vue partielle en coupe longitudinale d'une connexion conforme à l'invention selon ce second mode de réalisation.Figure 4 is a partial view in longitudinal section of a connection according to the invention according to this second embodiment.

La description qui suit est relative à la connexion de deux câbles moyenne tension de plus de 10 kV. Bien que des câbles à conducteur unique soient décrits, l'invention s'applique également à des câbles multi-conducteurs.The following description relates to the connection of two cables medium voltage over 10 kV. Although single-conductor cables be described, the invention also applies to multi-conductor cables.

La figure 1 représente donc un connecteur conforme à l'invention selon un premier mode de réalisation.FIG. 1 therefore represents a connector according to the invention according to a first embodiment.

Ce connecteur 1 de conducteurs se compose de façon connue en soi d'un corps cylindrique percé de deux orifices cylindriques longitudinaux 2, 3 dits contacts et destinés à recevoir les extrémités de conducteurs, une fois les extrémités de câble dénudées. Dans ces orifices longitudinaux 2, 3 débouchent respectivement des alésages filetés 4, 5 destinés à recevoir chacun une vis de blocage assurant le contact électrique de chaque conducteur. Le connecteur 1 comporte à chacune de ses extrémités un moyen de prolongement solidaire du connecteur 1 constitué d'une bride annulaire rigide 6, 7 disposée à la périphérie du connecteur, plus précisément de diamètre externe égale à celui du connecteur et de diamètre interne supérieur à celui de l'enveloppe isolante du plus grand câble de la gamme couverte. Le moyen de recouvrement couvre l'enveloppe isolante 11 sur une longueur supérieure à 10 mm et de préférence, comprise entre 10 et 20 mm.This connector 1 of conductors is made up in a known manner of self of a cylindrical body pierced with two longitudinal cylindrical orifices 2, 3 said contacts and intended to receive the ends of conductors, once bare cable ends. In these longitudinal holes 2, 3 open respectively threaded bores 4, 5 intended to receive each a locking screw ensuring the electrical contact of each driver. The connector 1 has at each of its ends a extension means integral with connector 1 consisting of a flange rigid annular 6, 7 disposed at the periphery of the connector, plus precisely of external diameter equal to that of the connector and of diameter internal superior to that of the insulating jacket of the largest cable of the range covered. The covering means covers the insulating envelope 11 over a length greater than 10 mm and preferably between 10 and 20 mm.

Dans le mode de réalisation préféré ici décrit, la bride 6, 7 est d'une longueur d'environ 15 mm.In the preferred embodiment described here, the flange 6, 7 is of a length of about 15 mm.

La bride 6 est de préférence une partie intégrante du connecteur 1 et son extrémité libre est arrondie.The flange 6 is preferably an integral part of the connector 1 and its free end is rounded.

La figure 2 représente partiellement une connexion de deux câbles avec le connecteur représenté sur la figure 1. Cette connexion étant symétrique par rapport à un axe vertical vu sur la figure, seul un câble connecté est représenté.Figure 2 partially shows a connection of two cables with the connector shown in Figure 1. This connection being symmetrical about a vertical axis seen in the figure, only one cable connected is shown.

Le câble est dénudé à son extrémité et le conducteur 10 est emboíté dans le contact 2, l'enveloppe isolante 11 du câble venant à proximité de l'extrémité du contact 2. Le revêtement semi-conducteur 12 recouvrant l'enveloppe 11 est quant à lui retiré sur une plus grande longueur afin d'être recouvert par la gaine isolante 20 rétractable à chaud ou à froid, elle-même revêtue d'une couche semi-conductrice 21. Les vis 8 du connecteur sont vissées pour serrer le conducteur 10 contre la paroi du connecteur et l'espace au-dessus de chaque vis 8 est rempli de mastic cond ucteur ou d'un capot en matériau semi-conducteur 9. La gaine rétractable 20 est mise en place et vient épouser le contour externe du connecteur 1 et du câble.The cable is stripped at its end and the conductor 10 is fitted in contact 2, the insulating jacket 11 of the cable coming near the end of the contact 2. The semiconductor coating 12 covering the envelope 11 is removed over a greater length in order to be covered by the heat-shrinkable or cold-insulating sheath 20, itself coated with a semiconductor layer 21. The screws 8 of the connector are screwed to clamp the conductor 10 against the wall of the connector and the space above each screw 8 is filled with conductive sealant or a cover of semiconductor material 9. The retractable sheath 20 is placed places and fits the external contour of connector 1 and the cable.

La bride 6 fait donc saillie au-dessus de l'enveloppe isolante 11 du câble et forme écran dans cette zone de transition. The flange 6 therefore projects above the insulating envelope 11 of the cable and screen form in this transition zone.

Compte tenu de la bride annulaire 6, la gaine 20 s'applique sur celle-ci laissant un espace relativement important entre d'une part la bride 6 et l'enveloppe isolante 11 du câble et entre d'autre part le gaine 20 et cette enveloppe 11. Cet espace est aisément rempli de mastic isolant 13 qui remplit également les interfaces entre la gaine 20 et le connecteur 1 et l'enveloppe isolante 20 du câble, le mastic chassant l'air et assurant une connexion à bonne tenue électrique. Cette couche de mastic isolant est apportée par la gaine isolante pendant sa rétraction.Taking into account the annular flange 6, the sheath 20 is applied thereon leaving a relatively large space between on the one hand the flange 6 and the insulating jacket 11 of the cable and on the other hand between the sheath 20 and this envelope 11. This space is easily filled with insulating mastic 13 which also fills the interfaces between the sheath 20 and the connector 1 and the insulating jacket 20 of the cable, the putty expelling air and ensuring a good electrical connection. This layer of insulating putty is brought by the insulating sheath during its retraction.

La figure 3 représente un connecteur conforme à l'invention selon un second mode de réalisation.FIG. 3 represents a connector according to the invention according to a second embodiment.

Ce connecteur 1' de conducteurs se compose de façon connue en soi d'un corps cylindrique percé de deux orifices cylindriques longitudinaux 2', 3' une fois les extrémités de câble dénudées. Dans ces orifices longitudinaux 2', 3' débouchent respectivement des alésages filetés 4', 5' destinés à recevoir chacun une vis de blocage assurant le contact électrique de chaque conducteur.This connector 1 ′ of conductors is made up in a known manner of self of a cylindrical body pierced by two longitudinal cylindrical orifices 2 ', 3' once the cable ends are stripped. In these holes longitudinal 2 ', 3' respectively open threaded bores 4 ', 5' intended to each receive a locking screw ensuring electrical contact of each driver.

Le connecteur 1' comporte à chacune de ses extrémités un moyen de prolongement solidaire du connecteur 1' constitué d'une jupe flexible 6', 7' de caoutchouc semi-conducteur fixée à la périphérie du connecteur, plus précisément de diamètre externe inférieur à celui du connecteur et de diamètre interne adapté au diamètre de l'enveloppe isolante du plus petit câble de la gamme couverte, l'extrémité de cette jupe étant arrondie.The connector 1 'has at each of its ends a means extension integral with the connector 1 'consisting of a flexible skirt 6', 7 ' of semiconductor rubber attached to the periphery of the connector, plus precisely with an external diameter smaller than that of the connector and internal diameter adapted to the diameter of the smallest insulating jacket covered range cable, the end of this skirt being rounded.

Dans le mode de réalisation préféré ici décrit, la jupe 6', 7' forme un prolongement d'une longueur d'environ 15 mm.In the preferred embodiment described here, the skirt 6 ′, 7 ′ forms a extension of a length of about 15 mm.

La figure 4 représente partiellement une connexion de deux câbles avec le connecteur représenté sur la figure 3. Cette connexion étant symétrique par rapport à un axe vertical vu sur la figure, seul un câble connecté est représenté.Figure 4 partially shows a connection of two cables with the connector shown in Figure 3. This connection being symmetrical about a vertical axis seen in the figure, only one cable connected is shown.

Le câble est dénudé à son extrémité et le conducteur 10 est emboíté dans le contact 2', l'enveloppe isolante 11 du câble venant à proximité de l'extrémité du connecteur 1'. Le revêtement semi-conducteur 12 recouvrant la gaine 11 est quant à lui retiré sur une plus grande longueur afin d'être recouvert par la gaine isolante 20 rétractable à chaud ou à froid, elle-même revêtue d'une couche semi-conductrice 21. Les vis 8' du connecteur sont vissées pour serrer le conducteur 10 contre la paroi du connecteur et l'espace au-dessus de chaque vis 8' est rempli de mastic conducteur ou d'un capot en matériau semi-conducteur 9'. La gaine rétractable 20 est mise en place et vient épouser le contour externe du connecteur 1' et du câble, apportant une couche de mastic isolant 13 qui remplit les irrégularités de surface restantes.The cable is stripped at its end and the conductor 10 is fitted in contact 2 ', the insulating jacket 11 of the cable coming near the end of the connector 1 '. The semiconductor coating 12 covering the sheath 11 is removed over a greater length in order to be covered by the heat-shrinkable or cold-insulating sheath 20, itself coated with a semiconductor layer 21. The screws 8 'of the connector are screwed to clamp the conductor 10 against the wall of the connector and the space above each 8 'screw is filled with conductive sealant or a cover in 9 'semiconductor material. The retractable sheath 20 is put in places and fits the external contour of the 1 'connector and the cable, providing a layer of insulating putty 13 which fills the irregularities of remaining area.

La jupe 6' fait donc saillie sur l'enveloppe isolante 11 du câble, recouvre intimement grâce à sa flexibilité cette enveloppe 11 et forme écran dans cette zone de transition. Le diamètre interne de la jupe 6' est choisie pour s'adapter au diamètre le plus petit de l'enveloppe isolante des câbles devant être connectés par le connecteur 1'. Pour des diamètres d'enveloppe isolante supérieure, la jupe 6' s'expanse par élasticité pour entourer cette enveloppe isolante.The skirt 6 ′ therefore projects from the insulating envelope 11 of the cable, intimately covers this envelope 11 and forms a screen thanks to its flexibility in this transition zone. The internal diameter of the skirt 6 'is chosen to adapt to the smallest diameter of the cable insulating jacket to be connected by connector 1 '. For envelope diameters upper insulator, the skirt 6 'expands by elasticity to surround this insulating jacket.

Les interfaces entre la gaine 20 et le connecteur 1 et l'enveloppe isolante 20 du câble sont remplies de mastic isolant 13.The interfaces between the sheath 20 and the connector 1 and the casing insulation 20 of the cable are filled with insulating mastic 13.

Claims (10)

Connecteur de deux câbles d'énergie électrique de moyenne tension, comportant chacun au moins un conducteur (10) entouré d'une enveloppe isolante (11), connecteur (1, 1') comportant des contacts vissés tubulaires (2, 3, 2', 3') et destiné à connecter ensemble les extrémités mises à nu desdits conducteurs engagées dans lesdits contacts et maintenues au moyen de vis (8, 8'), connecteur comportant à au moins une de ses extrémités un moyen de prolongement (6, 7, 6', 7') solidaire du connecteur et destiné à couvrir une partie de l'enveloppe isolante (11) du câble, caractérisé en ce que ledit moyen de recouvrement couvre l'enveloppe isolante (11) sur une longueur supérieure à 10 mm.Connector of two medium voltage electric power cables, each comprising at least one conductor (10) surrounded by an insulating jacket (11), connector (1, 1 ') comprising tubular screw contacts (2, 3, 2' , 3 ') and intended to connect together the exposed ends of said conductors engaged in said contacts and held by means of screws (8, 8'), connector comprising at least one of its ends an extension means (6, 7 , 6 ', 7') integral with the connector and intended to cover part of the insulating jacket (11) of the cable, characterized in that said covering means covers the insulating jacket (11) over a length greater than 10 mm . Connecteur selon la revendication 1, caractérisé en ce que ledit moyen de recouvrement couvre l'enveloppe isolante (11) sur une longueur comprise entre 10 et 20 mm.Connector according to claim 1, characterized in that said covering means covers the insulating jacket (11) over a length of between 10 and 20 mm. Connecteur selon la revendication 1 ou 2, caractérisé en ce que ledit moyen de prolongement (6, 7, 6', 7') comporte une extrémité libre arrondie.Connector according to claim 1 or 2, characterized in that said extension means (6, 7, 6 ', 7') has a rounded free end. Connecteur selon l'une des revendications précédentes, caractérisé en ce que ledit moyen de prolongement est constitué d'une bride annulaire rigide (6) disposée à la périphérie du connecteur (1).Connector according to one of the preceding claims, characterized in that said extension means consists of a rigid annular flange (6) disposed at the periphery of the connector (1). Connecteur selon la revendication 4, caractérisé en ce que ladite bride (6) est une partie intégrante dudit connecteur (1).Connector according to claim 4, characterized in that said flange (6) is an integral part of said connector (1). Connecteur selon l'une des revendications 1 à 3, caractérisé en ce que ledit moyen de prolongement est constitué d'une jupe flexible (6') de caoutchouc semi-conducteur fixée à la périphérie du connecteur (1 ').Connector according to one of claims 1 to 3, characterized in that said extension means consists of a flexible skirt (6 ') of semiconductor rubber fixed to the periphery of the connector (1'). Connexion de deux câbles d'énergie électrique de moyenne tension, comportant chacun au moins un conducteur (10) entouré d'une enveloppe isolante (11), connexion comportant un connecteur (1, 1') selon l'une des revendications précédentes et une gaine isolante (20) adaptée pour couvrir intimement au moins ledit connecteur. Connection of two medium voltage electric power cables, each comprising at least one conductor (10) surrounded by a insulating jacket (11), connection comprising a connector (1, 1 ') according to one of the preceding claims and an insulating sheath (20) adapted to intimately cover at least said connector. Connexion selon la revendication 7, caractérisé en ce que l'espace entre ledit connecteur (1, 1') et l'enveloppe isolante (11) du câble correspondant est rempli d'une couche de mastic isolant (13).Connection according to claim 7, characterized in that the space between said connector (1, 1 ') and the insulating jacket (11) of the corresponding cable is filled with a layer of insulating mastic (13). Connexion selon la revendication 7 ou 8, caractérisée en ce que l'espace entre la couche de mastic isolant (13) et chaque vis (8, 8') est rempli de mastic conducteur.Connection according to claim 7 or 8, characterized in that the space between the layer of insulating mastic (13) and each screw (8, 8 ') is filled with conductive mastic. Connexion selon la revendication 7 ou 8, caractérisée en ce que l'espace entre la couche de mastic isolant (13) et chaque vis (8, 8') est rempli d'un capot (9, 9') en matériau semi-conducteur.Connection according to claim 7 or 8, characterized in that the space between the layer of insulating mastic (13) and each screw (8, 8 ') is filled with a cover (9, 9') made of semiconductor material .
EP03300099A 2002-08-30 2003-08-28 Connector for two electrical power cables and connection including this connector Expired - Lifetime EP1394900B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0211207 2002-08-30
FR0211207A FR2844101B1 (en) 2002-08-30 2002-08-30 CONNECTOR FOR TWO ELECTRIC POWER CABLES AND CONNECTION COMPRISING SUCH A CONNECTOR

Publications (2)

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EP1394900A1 true EP1394900A1 (en) 2004-03-03
EP1394900B1 EP1394900B1 (en) 2005-12-28

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EP03300099A Expired - Lifetime EP1394900B1 (en) 2002-08-30 2003-08-28 Connector for two electrical power cables and connection including this connector

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US (1) US6997758B2 (en)
EP (1) EP1394900B1 (en)
AT (1) ATE314742T1 (en)
DE (1) DE60302953T2 (en)
ES (1) ES2255662T3 (en)
FR (1) FR2844101B1 (en)

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JP5075488B2 (en) * 2007-06-06 2012-11-21 矢崎総業株式会社 connector
EP2683034B1 (en) * 2012-07-02 2015-05-06 Nexans Method for a connection conducting electricity between the electricity conductors of two electrical units
GB2521447A (en) 2013-12-20 2015-06-24 Technip France A PIP trace heating connection assembly
EP3001523B1 (en) * 2014-09-24 2018-11-14 Tyco Electronics Raychem GmbH Electrical connector for end-to-end connection
CN105720394A (en) * 2014-12-02 2016-06-29 苏珊·阿普莎加 Connection system
EP3185380B1 (en) * 2015-12-23 2018-07-25 NKT HV Cables GmbH A high voltage power cable joint device and a power cable comprising the same
CN106207519A (en) * 2016-06-24 2016-12-07 苏州华本机电有限公司 A kind of side connects cable mechanism
DE202017004743U1 (en) * 2017-09-11 2018-12-12 Woertz Engineering Ag Cable connector and cable termination
PL237953B1 (en) * 2019-05-15 2021-06-14 Erko Spolka Z Ograniczona Odpowiedzialnoscia Spolka Komandytowa Connector with threads arranged under a shear bolt with a pressure element, a power cable connection unit and method of connecting an electrical connection unit
WO2021165744A1 (en) 2020-02-18 2021-08-26 Nvent Services Gmbh Devices and methods for electrical cable splices

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Also Published As

Publication number Publication date
DE60302953T2 (en) 2006-09-21
FR2844101A1 (en) 2004-03-05
US6997758B2 (en) 2006-02-14
DE60302953D1 (en) 2006-02-02
EP1394900B1 (en) 2005-12-28
ES2255662T3 (en) 2006-07-01
ATE314742T1 (en) 2006-01-15
FR2844101B1 (en) 2004-10-22
US20040102081A1 (en) 2004-05-27

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