FR3061810A1 - DEVICE FOR CONNECTION BETWEEN THE SCREENS OF TWO ELECTRIC CABLE ELEMENTS - Google Patents
DEVICE FOR CONNECTION BETWEEN THE SCREENS OF TWO ELECTRIC CABLE ELEMENTS Download PDFInfo
- Publication number
- FR3061810A1 FR3061810A1 FR1770030A FR1770030A FR3061810A1 FR 3061810 A1 FR3061810 A1 FR 3061810A1 FR 1770030 A FR1770030 A FR 1770030A FR 1770030 A FR1770030 A FR 1770030A FR 3061810 A1 FR3061810 A1 FR 3061810A1
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- Prior art keywords
- screen
- layer
- cable
- elements
- connection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000006262 metallic foam Substances 0.000 claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000015556 catabolic process Effects 0.000 claims abstract description 5
- 238000006731 degradation reaction Methods 0.000 claims abstract description 5
- 239000011888 foil Substances 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- 229910052738 indium Inorganic materials 0.000 claims description 2
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims description 2
- 239000010410 layer Substances 0.000 abstract description 19
- 239000011241 protective layer Substances 0.000 abstract description 7
- 238000009413 insulation Methods 0.000 description 5
- 239000004020 conductor Substances 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010001488 Aggression Diseases 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000016571 aggressive behavior Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
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
- H01R4/58—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 characterised by the form or material of the contacting members
- H01R4/64—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail
- H01R4/646—Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail for cables or flexible cylindrical bodies
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6591—Specific features or arrangements of connection of shield to conductive members
- H01R13/65912—Specific features or arrangements of connection of shield to conductive members for shielded multiconductor cable
- H01R13/65917—Connection to shield by means of resilient members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6598—Shield material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6591—Specific features or arrangements of connection of shield to conductive members
- H01R13/6592—Specific features or arrangements of connection of shield to conductive members the conductive member being a shielded cable
-
- 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
- H01R4/363—Conductive members located under tip of screw with intermediate part between tip and conductive member
- H01R4/366—Conductive members located under tip of screw with intermediate part between tip and conductive member intermediate part attached to the tip of the 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
- H01R4/58—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 characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
Landscapes
- Cable Accessories (AREA)
Abstract
Dispositif de connexion entre les écrans de deux éléments de câble métalliques (10) adaptés pour transporter du courant électrique de haute tension et de forte intensité, chacun desdits éléments de câble étant entouré par une couche d'isolant (12) elle-même entourée par un écran (14) constitué d'une feuille d'aluminium couvert d'une couche de protection (16), l'écran, qui est connecté à la terre, étant utilisé pour détecter la dégradation de la couche d'isolant par mesure de la tension entre l'écran et la terre. Le dispositif est caractérisé en ce que l'écran du premier élément de câble est connecté à l'écran du second élément de câble par une connexion électrique reliant deux éléments de connexion, chacun des éléments de connexion comprenant une couche de mousse métallique (18) à cellules ouvertes placée au dessus de l'écran (14) et étant serrée contre l'écran par un moyen de serrage.Device for connection between the screens of two metallic cable elements (10) adapted to carry high voltage and high intensity electric current, each of said cable elements being surrounded by an insulating layer (12) itself surrounded by a screen (14) made of an aluminum foil covered with a protective layer (16), the screen, which is connected to the ground, being used to detect the degradation of the insulating layer by measuring the voltage between the screen and the earth. The device is characterized in that the screen of the first cable element is connected to the screen of the second cable element by an electrical connection connecting two connection elements, each of the connection elements comprising a metal foam layer (18). with open cells placed above the screen (14) and being clamped against the screen by a clamping means.
Description
Titulaire(s) :Holder (s):
A M C.To M C.
O Demande(s) d’extension :O Extension request (s):
(® Mandataire(s) : LOGIPI.(® Agent (s): LOGIPI.
(54) DISPOSITIF DE CONNEXION ENTRE LES ECRANS DE DEUX ELEMENTS DE CABLE ELECTRIQUE.(54) DEVICE FOR CONNECTING BETWEEN THE SCREENS OF TWO ELECTRIC CABLE ELEMENTS.
FR 3 061 810 - A1 (g) Dispositif de connexion entre les écrans de deux éléments de câble métalliques (10) adaptés pour transporter du courant électrique de haute tension et de forte intensité, chacun desdits éléments de câble étant entouré par une couche d'isolant (12) elle-même entourée par un écran (14) constitué d'une feuille d'aluminium couvert d'une couche de protection (16), l'écran, qui est connecté à la terre, étant utilisé pour détecter la dégradation de la couche d'isolant par mesure de la tension entre l'écran et la terre. Le dispositif est caractérisé en ce que l'écran du premier élément de câble est connecté à l'écran du second élément de câble par une connexion électrique reliant deux éléments de connexion, chacun des éléments de connexion comprenant une couche de mousse métallique (18) à cellules ouvertes placée au dessus de l'écran (14) et étant serrée contre l'écran par un moyen de serrage.FR 3 061 810 - A1 (g) Connection device between the screens of two metallic cable elements (10) adapted to transport high voltage and high current electric current, each of said cable elements being surrounded by a layer of insulator (12) itself surrounded by a screen (14) made of aluminum foil covered with a protective layer (16), the screen, which is connected to earth, being used to detect degradation of the insulation layer by measuring the voltage between the screen and the earth. The device is characterized in that the screen of the first cable element is connected to the screen of the second cable element by an electrical connection connecting two connection elements, each of the connection elements comprising a layer of metallic foam (18) with open cells placed above the screen (14) and being clamped against the screen by a clamping means.
La présente invention concerne les dispositifs permettant la connexion électrique entre deux éléments de câble utilisés pour transporter du courant électrique de haute tension et de forte intensité et concerne en particulier un dispositif de connexion entre les écrans de deux éléments de câble électrique.The present invention relates to devices allowing the electrical connection between two cable elements used to transport high voltage and high current electric current and relates in particular to a device for connecting between the screens of two elements of electric cable.
Auj ourd'hui,Today,
1'électricité, que ce soit en courant alternatif ou en courant continu, est transportée par des câbles électriques d'une tension comprise entre 20000 volts etElectricity, whether alternating or direct current, is transported by electric cables with a voltage between 20,000 volts and
200000 volts et d'une intensité comprise entre 100A et 5000A.200,000 volts and an intensity between 100A and 5000A.
Un tel câble électrique qui est généralement enterré est illustré sur la figure 1.Such an electric cable which is generally buried is illustrated in FIG. 1.
Le câble est composé d'un conducteur circulaire 10 où passe le courant, formé d'une pluralité de brins en aluminium ou en cuivre. Le conducteur d'un diamètre compris entre 10 etThe cable is composed of a circular conductor 10 where the current flows, formed of a plurality of strands of aluminum or copper. The conductor with a diameter between 10 and
30mm est entouré d'une couche d'isolant30mm is surrounded by a layer of insulation
12, généralement en polyéthylène, d'une épaisseur d'environ 5 à 10mm.12, generally made of polyethylene, with a thickness of approximately 5 to 10 mm.
La couche d'isolant 12 est elle-même entourée d'une gaine métallique ou écran 14, généralement en aluminium, afin de confiner le champ électrique à l'intérieur du câble. Cette gaine a une faible épaisseur comprise entre 2/100mm et 5/100mm et est entourée d'une couche de protection extérieure 16 assurant de bonnes propriétés mécaniques et protégeant le câble des agressions extérieures.The insulating layer 12 is itself surrounded by a metal sheath or screen 14, generally made of aluminum, in order to confine the electric field inside the cable. This sheath has a small thickness of between 2 / 100mm and 5 / 100mm and is surrounded by an outer protective layer 16 ensuring good mechanical properties and protecting the cable from external aggressions.
L'écran 14 a une fonction primordiale.The screen 14 has a primary function.
En effet, 1'écran est relié à la terre, et en l'absence de détérioration du câble, sa tension mesurée en permanence est nulle. En cas de dégradation, qui résulte la plupart du temps d'un percement de la couche d'isolant dû un outil pointu enfoncé malencontreusement dans le sol où se trouve le câble, une partie du courant circulant dans le câble passe dans l'écran et crée donc une différence de potentiel de l'écran par rapport à la terre. La tension de l'écran étant mesurée permanence, l'augmentation de tension déclenche alors en la coupure de l'alimentation électrique du câble pour éviter des dégradations matérielles et des risques pour les personnes.Indeed, the screen is connected to earth, and in the absence of deterioration of the cable, its permanently measured voltage is zero. In the event of degradation, which most of the time results from a piercing of the insulating layer due to a pointed tool inadvertently driven into the ground where the cable is located, part of the current flowing in the cable passes through the screen and So creates a potential difference of the screen compared to the earth. Since the screen voltage is measured continuously, the voltage increase then triggers the disconnection of the cable's electrical supply to avoid material damage and risks for people.
Les éléments de câble électrique ont généralement une longueur de 100m à 200m. Pour obtenir une liaison électrique de grande longueur, il est donc nécessaire de raccorder ensemble plusieurs éléments de câble. La connexion de deux éléments de câble pour transporter le courant électrique ne pose pas de problème et se fait à l'aide d'un manchon serti aux extrémités des deux éléments de câble réunis bout à bout.The electrical cable elements generally have a length of 100m to 200m. To obtain a long electrical connection, it is therefore necessary to connect several cable elements together. The connection of two cable elements to transport the electric current poses no problem and is done using a sleeve crimped at the ends of the two cable elements joined end to end.
Mais il est également nécessaire d'effectuer la connexion des écrans de chacun des deux câbles entre eux. Aujourd'hui, Une méthode habituelle pour effectuer la connexion de l'écran de sécurité des câbles électriques est de glisser l'élément de contact en dessous de l'écran. Ceci oblige l'opérateur à fendre longitudinalement en au moins points et sur une longueur d'au moins 30 à 4 0 mm la couche de protection extérieure pour pouvoirBut it is also necessary to connect the screens of each of the two cables to each other. Today, a usual method for making the connection of the safety screen for electrical cables is to slide the contact element below the screen. This forces the operator to split the outer protective layer longitudinally at least in points and over a length of at least 30 to 40 mm.
1'écarter et glisser l'élément de contact. Cette action si elle est réalisée dans une tranchée est difficile à mettre en œuvre et reste très délicate. Tous les paramètres pourMove aside and slide the contact element. This action if carried out in a trench is difficult to implement and remains very delicate. All parameters for
1'établissement d'un bon contact électrique dépendent de l'attention et du professionnalisme deEstablishing good electrical contact depends on the attention and professionalism of
1'opérateur.The operator.
Ensuite, la connexion à faible résistance se fait à l'aide de colliers métalliques connectés entre eux à l'extrémité de chaque élément de câble. Le collier maintient une pression sur l'écran de façon à assurer un bon contact électrique. Malheureusement, cette façon de faire ne permet pas d'assurer un contact électrique efficace du fait, qu'avec le temps, une couche d'alumine se dépose sur l'écran en aluminium et entraîne une augmentation de la résistance électrique entre chaque écran et la connexion reliant les deux écrans.Then, the low resistance connection is made using metal clamps connected together at the end of each cable element. The collar maintains pressure on the screen to ensure good electrical contact. Unfortunately, this procedure does not ensure effective electrical contact because, over time, a layer of alumina is deposited on the aluminum screen and increases the electrical resistance between each screen and the connection between the two screens.
C’est pourquoi le but de l’invention est de fournir un dispositif de connexion électrique entre les écrans de deux éléments de câble électrique qui présente une résistance faible et stable dans le temps.This is why the object of the invention is to provide an electrical connection device between the screens of two elements of electrical cable which has a low resistance and is stable over time.
L'objet de l’invention est donc un dispositif de connexion entre les écrans de deux éléments de câble métalliques adaptés pour transporter du courant électrique de forte intensité, chacun des éléments de câble étant entouré par une couche d'isolant elle-même entourée par un écran constitué d'une feuille d'aluminium couvert d'une couche de protection. L'écran, qui est connecté à la terre, est utilisé pour détecter la dégradation de la couche d'isolant par mesure de la tension entre l'écran et la terre. Le dispositif est caractérisé en ce que l'écran du premier élément de câble est connecté à l'écran du second élément de câble par une connexion électrique reliant deux éléments de connexion, chacun des éléments de connexion comprenant une couche de mousse métallique à cellules ouvertes placée au dessus de l'écran et étant serrée contre l'écran par un moyen de serrage.The object of the invention is therefore a connection device between the screens of two metal cable elements suitable for transporting high intensity electric current, each of the cable elements being surrounded by an insulating layer itself surrounded by a screen made of aluminum foil covered with a protective layer. The screen, which is connected to earth, is used to detect the degradation of the insulation layer by measuring the voltage between the screen and the earth. The device is characterized in that the screen of the first cable element is connected to the screen of the second cable element by an electrical connection connecting two connection elements, each of the connection elements comprising a layer of metallic foam with open cells placed above the screen and being clamped against the screen by a clamping means.
D'autres buts, objets et caractéristiques de l’invention apparaîtront plus clairement à la lecture de la description qui suit faite en référence aux dessins dans lesquels :Other objects, objects and characteristics of the invention will appear more clearly on reading the following description made with reference to the drawings in which:
la figure 1 représente une coupe d'un câble électrique transportant un courant électrique de grande intensité ; et la figure 2 représente une vue en perspective montrant les différents éléments de l'extrémité d'un élément de câble munie d'un dispositif de connexion selon le mode de réalisation préférentiel de l'invention ;Figure 1 shows a section of an electric cable carrying a high intensity electric current; and FIG. 2 represents a perspective view showing the various elements of the end of a cable element provided with a connection device according to the preferred embodiment of the invention;
En référence à la figure 2 qui illustre une extrémité de l'élément de câble à raccorder à un autre élément de câble, le dispositif de connexion d'écrans le conducteur circulaire 10 composé d'une pluralité de brins est dénudé sur une longueur d'environ 5 cm de manière à installer sur cette extrémité dénudée et l'extrémité dénudée de l'autre élément de câble qui lui est raccordé un manchon serti aux extrémités des deux éléments de câble réunis bout à bout.With reference to FIG. 2 which illustrates one end of the cable element to be connected to another cable element, the device for connecting screens to the circular conductor 10 composed of a plurality of strands is stripped over a length of about 5 cm so as to install on this stripped end and the stripped end of the other cable element which is connected to it a sleeve crimped at the ends of the two cable elements joined end to end.
L'isolant 12 est également dénudé sur une courte longueur de manière à installer le dispositif de connexion d'écrans selon l'invention comme décrit ci-après.The insulator 12 is also stripped over a short length so as to install the screen connection device according to the invention as described below.
A l'extrémité de la partie dénudée de l'isolant 12, la couche de protection extérieure est entaillée de façon à former un évidement formant un angle compris entre 20° et 40° sur une longueur d'environ 4 cm. Cet évidement laisse apparaître l'écran 14 qui est donc mis à nu.At the end of the stripped part of the insulation 12, the outer protective layer is notched so as to form a recess forming an angle between 20 ° and 40 ° over a length of approximately 4 cm. This recess reveals the screen 14 which is therefore exposed.
On installe alors une couche de mousse métallique 18 sur toute la longueur de l'écran 14 mis à nu connue sous la dénomination ECOCONTACT (marque déposée). La couche 18 qui fait l'objet du brevet FR 10/02988 est constituée d'un squelette de mousse de métal à cellules ouvertes de porosité et de déformabilité élevées choisi dans le groupe consistant en fer, cobalt, nickel et leurs alliages recouvert d'au moins un revêtement d'étain, d'indium ou un de leurs alliages.A layer of metallic foam 18 is then installed over the entire length of the exposed screen 14 known under the name ECOCONTACT (registered trademark). The layer 18 which is the subject of patent FR 10/02988 consists of a skeleton of metal foam with open cells of high porosity and deformability chosen from the group consisting of iron, cobalt, nickel and their alloys covered with at least one coating of tin, indium or one of their alloys.
Au dessus de la couche de mousse métallique 18, on place l'extrémité d'un feuillard 20 dont l'autre extrémité 20-1 est en contact avec la couche de mousse métallique installée à l'extrémité de l'autre élément de câble à raccorder.Above the layer of metal foam 18, the end of a strip 20 is placed, the other end 20-1 of which is in contact with the layer of metal foam installed at the end of the other cable element to be connect.
Puis, on installe une cale de serrage 22 au dessus du feuillard 20. L'ensemble est serré au moyen d'un collier de serrage 26. Il est toutefois préférable de mettre un écrou 24 sous le collier de serrage 26, l'écrou 24 permettant un serrage rigoureux au moyen d'une vis 28.Then, a clamping wedge 22 is installed above the strip 20. The assembly is tightened by means of a clamping collar 26. It is however preferable to put a nut 24 under the clamping collar 26, the nut 24 allowing rigorous tightening by means of a screw 28.
La structure alvéolaire de la couche de mousse métallique 18 est telle qu’elle est constituée en majeure partie de vide. De ce fait, sa surface comporte une multitude de pointes de contact. En outre, le choix du fer, du cobalt, du nickel ou d'un de leurs alliages qui sont des métaux présentant une grande dureté, permet d'obtenir des pointes dures capables de pénétrer dans l'alumine formée à la surface de l'écran 14, ce qui assure un contact parfait entre l'écran 14 et le feuillard 20, 20-1, et donc avec l'écran de l'autre élément de câble raccordé qui comporte un même dispositif tel que celui illustré sur la figure 2.The honeycomb structure of the metal foam layer 18 is such that it consists mainly of voids. As a result, its surface has a multitude of contact points. In addition, the choice of iron, cobalt, nickel or one of their alloys which are metals having a high hardness, makes it possible to obtain hard tips capable of penetrating into the alumina formed on the surface of the screen 14, which ensures perfect contact between the screen 14 and the strip 20, 20-1, and therefore with the screen of the other connected cable element which comprises the same device such as that illustrated in FIG. 2 .
Un des avantages de l'invention décrite ci-dessus est de dénuder seulement partiellement la gaine extérieure avec un outillage mécanique simple. L'utilisation de la couche de mousse métallique (marque ECOCONTACT) permet de limiter le dénudage à une surface réduite et simplifie considérablement la mise en œuvre.One of the advantages of the invention described above is to only partially strip the outer sheath with simple mechanical tools. The use of the layer of metallic foam (ECOCONTACT brand) makes it possible to limit stripping to a reduced surface and considerably simplifies the implementation.
Ce dispositif permet, par ailleurs, de surveiller la tension d'écran en n'importe quel point du câble et en dehors des raccordements. Il suffit de découper avec un poinçon en porte-pièce de diamètre 5 à 15 mm la couche de protection extérieure et permettre ainsi l'accès à l'écran. La pose du dispositif du contact peut alors s'effectuer dans les 10 meilleures conditions possibles sans altérer l'isolement du câble et dans les meilleures conditions de performance électrique et économique.This device also makes it possible to monitor the screen voltage at any point on the cable and outside the connections. Just cut the outer protective layer with a 5 to 15 mm diameter workpiece punch and thus allow access to the screen. The fitting of the contact device can then be carried out under the best possible conditions without altering the insulation of the cable and under the best conditions of electrical and economic performance.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1770030A FR3061810B1 (en) | 2017-01-09 | 2017-01-09 | CONNECTION DEVICE BETWEEN THE SCREENS OF TWO ELEMENTS OF ELECTRIC CABLE |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1770030A FR3061810B1 (en) | 2017-01-09 | 2017-01-09 | CONNECTION DEVICE BETWEEN THE SCREENS OF TWO ELEMENTS OF ELECTRIC CABLE |
| FR1770030 | 2017-01-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR3061810A1 true FR3061810A1 (en) | 2018-07-13 |
| FR3061810B1 FR3061810B1 (en) | 2020-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1770030A Active FR3061810B1 (en) | 2017-01-09 | 2017-01-09 | CONNECTION DEVICE BETWEEN THE SCREENS OF TWO ELEMENTS OF ELECTRIC CABLE |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR3061810B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111009744A (en) * | 2019-11-25 | 2020-04-14 | 长园电力技术有限公司 | Grounding structure and method of shielding type insulating tube |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998037607A1 (en) * | 1997-02-18 | 1998-08-27 | Thomas & Betts (Ontario) Ltd. | Electrical connector for shielded cable |
| JP2007026949A (en) * | 2005-07-19 | 2007-02-01 | Fujikura Ltd | Connection structure between boards |
| WO2012007701A1 (en) * | 2010-07-16 | 2012-01-19 | Amc | Electrical connection device having improved conductance |
| US20140051271A1 (en) * | 2012-08-16 | 2014-02-20 | Hubbell Incorporated | Ground Strap Shield Connector |
| US20140127938A1 (en) * | 2012-11-08 | 2014-05-08 | Hubbell Incorporated | Tapered Ground Strap Shield Connector |
| WO2014068201A1 (en) * | 2012-11-05 | 2014-05-08 | Amc Etec | Device for disconnecting an electrical supply line with a high-intensity current |
-
2017
- 2017-01-09 FR FR1770030A patent/FR3061810B1/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998037607A1 (en) * | 1997-02-18 | 1998-08-27 | Thomas & Betts (Ontario) Ltd. | Electrical connector for shielded cable |
| JP2007026949A (en) * | 2005-07-19 | 2007-02-01 | Fujikura Ltd | Connection structure between boards |
| WO2012007701A1 (en) * | 2010-07-16 | 2012-01-19 | Amc | Electrical connection device having improved conductance |
| US20140051271A1 (en) * | 2012-08-16 | 2014-02-20 | Hubbell Incorporated | Ground Strap Shield Connector |
| WO2014068201A1 (en) * | 2012-11-05 | 2014-05-08 | Amc Etec | Device for disconnecting an electrical supply line with a high-intensity current |
| US20140127938A1 (en) * | 2012-11-08 | 2014-05-08 | Hubbell Incorporated | Tapered Ground Strap Shield Connector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111009744A (en) * | 2019-11-25 | 2020-04-14 | 长园电力技术有限公司 | Grounding structure and method of shielding type insulating tube |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3061810B1 (en) | 2020-01-10 |
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