FR2586865A1 - Electrical connection lug, especially for external installations - Google Patents
Electrical connection lug, especially for external installations Download PDFInfo
- Publication number
- FR2586865A1 FR2586865A1 FR8513502A FR8513502A FR2586865A1 FR 2586865 A1 FR2586865 A1 FR 2586865A1 FR 8513502 A FR8513502 A FR 8513502A FR 8513502 A FR8513502 A FR 8513502A FR 2586865 A1 FR2586865 A1 FR 2586865A1
- Authority
- FR
- France
- Prior art keywords
- cable
- housing
- connection lug
- electrical connection
- sleeve
- 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.)
- Withdrawn
Links
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
- H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/20—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
Landscapes
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
Description
La présente invention est relative à une cosse de raccordement électrique d'un type nouveau , destinée à êtré utilisée notamment sur des installations extérieures ou sur les installations dont les câbles sont exposés à des vibrations ou à des efforts transversaux. Le problème se pose entre autres , sur les lignes électriques aériennes dont les câbles sont raccordés en certains endroits à des bretel les de branchement ou à des conducteurs de mise à la terre
Dans ces conditions , on utilise habituellement une cosse de raccordement , qu'on visse de façon rigide , alors que le câble dont elle est solidaire est soumis à des efforts répétés de flexion transversale , par exemple sous l'effet du vent
Une cosse de type connu comprend une pat te de fixation ( généralement perforée) , solidaire d'une jupe cylindrique dont le logement intérieur axial vient s'em boîter sur l'extrémité dénudée du câble . La fixation défi- nitive de cette jupe sur la partie métallique dénudée du câble peut s'effectuer par tout moyenconnu , généralement par sertissage . Cette manière de procéder habituellement présente l'inconvénient d'établir une discontinuité entre le bord arrière libre de la jupe métallique , et la face transversale en regard de l'isolant qui gaine le câble .On constate que cette discontinuité présente un double inconvéni & t , à savoir
- d'une part , l'eau de pluie s'infiltre dans l'interstice
pour entraîner des phénomènes de corrosion dans le ser
tissage de l'amie métallique du câble
- d'autre part , la présence de la gaine isolante à forte
rigidité cessant à cet endroit , il s'y produit une con
centration de contraintes , faisant apparaître à la lon
gue , une rupture de fatigue du câble , par flexion alter
née de son âme métallique.The present invention relates to an electrical connection terminal of a new type, intended to be used in particular on outdoor installations or on installations the cables of which are exposed to vibrations or to transverse forces. The problem arises, among other things, on overhead power lines, the cables of which are connected in certain places to connection straps or to grounding conductors.
Under these conditions, a connection lug is usually used, which is screwed rigidly, while the cable of which it is integral is subjected to repeated transverse bending forces, for example under the effect of wind.
A terminal of known type comprises a fixing tab (generally perforated), integral with a cylindrical skirt whose axial internal housing is caught in the stripped end of the cable. The final fixing of this skirt on the bare metal part of the cable can be carried out by any known method, generally by crimping. This procedure usually has the disadvantage of establishing a discontinuity between the free rear edge of the metal skirt, and the transverse face opposite the insulation which sheaths the cable. We note that this discontinuity has a double disadvantage. , to know
- on the one hand, rainwater infiltrates into the gap
to cause corrosion in the ser
wire rope weaving
- on the other hand, the presence of the high insulating sheath
rigidity ceasing at this point, there occurs a con
stress centration, making it appear at length
cable fatigue rupture due to alter bending
born of its metallic soul.
La présente invention a pour but d'évi- ter ces inconvénients , en réalisant à peu de frais une cosse de raccordement , qui est par ailleurs directement adaptable sur les installations existantes , sans en entraîner la modification
Une cosse de raccordement électrique selon l'invention se présente sous la forme d'une pièce mé- tallique monobloc , comportant une patte de branchement ,solidaire de l'extrémité borgne d'une jupe cylindrique munie d'un logement longitudinal intérieur susceptible de venir coiffer l'extrémité dénudée d'un câble , et elle est carac térisée en ce qu'au-delà du premier logement qui reçoit 1' âme métallique du câble , la jupe contient un second logement coaxial , qui prolonge le premier jusque vers l'exté-- rieur , le diamètre interne de ce second logement étant sensiblement égal au diamètre extérieur de l'isolant du câble ce qui permet à la jupe , de coiffer , non seulement l'-extrémité dénudée de l'âme métallique du câble , mais également au-delà ,1 gaine isolante qui l'enveloppe
Bien entendu , la fixation en place de la cosse selon l'invention peut s'effectuer par tour procédé connu , et notamment par sertissage sur l'âme dénudée du câble , comme s'il s'agissait d'une cosse de type déjà connu.The object of the present invention is to avoid these drawbacks, by producing a connection lug inexpensively, which is moreover directly adaptable to existing installations, without causing modification thereof.
An electrical connection terminal according to the invention is in the form of a single piece of metal, comprising a connection lug, integral with the blind end of a cylindrical skirt provided with an internal longitudinal housing capable of coming cover the stripped end of a cable, and it is characterized in that beyond the first housing which receives the metal core of the cable, the skirt contains a second coaxial housing, which extends the first up towards the exterior, the internal diameter of this second housing being substantially equal to the external diameter of the cable insulation, which allows the skirt to cover not only the stripped end of the metal core of the cable, but also beyond, 1 insulating sheath which envelops it
Of course, the fixing in place of the terminal according to the invention can be carried out by a known method, and in particular by crimping on the stripped core of the cable, as if it were a terminal of already known type. .
Le dessin anhexé , donné à titre d'exen- ple non limitatif , permettra de mieux comprendre les caractéristiques de l'invention
Figure 1 est une vue en perspective d'une cosse de raccordement selon l'invention , mise en place' sur l'extrémité d'un câble de mise à la terre
Figure 2 est une vue latérale de la cosse considérée isolément.The attached drawing, given by way of non-limiting example, will allow a better understanding of the characteristics of the invention
Figure 1 is a perspective view of a connection terminal according to the invention, placed 'on the end of a grounding cable
Figure 2 is a side view of the terminal considered in isolation.
Figure 3 est une demi-coupe suivant III
III ( figure 2).Figure 3 is a half section along III
III (Figure 2).
Figure 4 est une vue en coupe suivant IV
IV ( figure 2).Figure 4 is a sectional view along IV
IV (Figure 2).
Figures 5 et 6 sont des coupes analogues après sertissage sur l'extrémité dénudée de l'âme métallique du câble. Figures 5 and 6 are similar sections after crimping on the stripped end of the metal core of the cable.
La cosse 1 représentée sur le dessin est destinée à venir s'adapter sur un câble électrique 2 dont l'âme métallique 3 est enrobée d'une gaine isolante 4 . On sait que , pour certains câbles 2 , notamment pour des câbles de mise à la terre sur les installations aériennes ,la gaine isolante 4 possède une importante rigidité mécanique. The terminal 1 shown in the drawing is intended to be fitted onto an electric cable 2, the metal core 3 of which is coated with an insulating sheath 4. It is known that, for certain cables 2, in particular for grounding cables on overhead installations, the insulating sheath 4 has significant mechanical rigidity.
La cosse 2 est une pièce métallique mono bloc , comprenant
- à l'avant , une patte plate 5 , généralement pourvue de
une ouverture 6 , pour la mise en place d'une vis de fi
xation
- à l'arrière , une jupe formée par la succession de deux
manchons tubulaires 7 et 8
L'extrémité avant borgne du premier manchon 7 est raccordée à la patte 5 .Le premier manchon 7 cowperte un logement intérieur cylindrique 9 , dont le diamètre 10 est sensiblement égal au diamètre extérieur de l'âme métallique 3 qu'il reçoit
La premier manchon tubulaire 7 est prolongé vers l'arrière par le second nanchon 8 , qui possède un logement intérieur 11 , dont le diamètre 12 est sensiblement égal au diamètre extérieur 13 de la gaine 4
Le fonctionnement est le suivant
L'installateur commence par dénuder 1' âme métallique 3 sur une longueur inférieure ou egale à la longueur axiale 14 du premier logement 9 . Ensuite , il coiffe l'ensemble du câble avec la jupe 7 , 8 , de la cosse 1 . Ce faisant , il engage la partie dénudée de l'âme métallique 3 dans le logement 9 , alors que la gaine isolante 4 vient s'emboiter dans le logement 11 , sur toute la longueur 15 de celui-ci
La fixation s'effectue par tout moyen connu , par exemple n par sertissage du premier manchon 7 sur la partie dénudée de l'âme métallique 3 e Ce sertissage peut être réalisé sous forme hexagonale ( cas de la figure 5) , ou par poinçonnage profond d'une nervure 16 ( cas de la figure 6) . Dans tous les cas , on voit qu'après fixation, la cosse 1 selon l'invention coiffe la gaine isolante 4 sur toute la longueur 15 du second manchon 8 , assurant ainsi la continuité de la résistance mécanique de l'ensemble face à d'éventuelles contraintes de flexion transversale The terminal 2 is a single block metallic piece, comprising
- at the front, a flat tab 5, generally provided with
an opening 6, for the installation of a screw of fi
xation
- at the back, a skirt formed by the succession of two
tubular sleeves 7 and 8
The blind front end of the first sleeve 7 is connected to the tab 5. The first sleeve 7 coasts a cylindrical internal housing 9, the diameter 10 of which is substantially equal to the external diameter of the metallic core 3 which it receives.
The first tubular sleeve 7 is extended rearwards by the second nanchon 8, which has an internal housing 11, the diameter 12 of which is substantially equal to the external diameter 13 of the sheath 4
The operation is as follows
The installer begins by stripping the metallic core 3 over a length less than or equal to the axial length 14 of the first housing 9. Then, it covers the entire cable with the skirt 7, 8, of the terminal 1. In doing so, it engages the stripped part of the metallic core 3 in the housing 9, while the insulating sheath 4 fits into the housing 11, over the entire length 15 of the latter.
The fixing is carried out by any known means, for example n by crimping the first sleeve 7 on the stripped part of the metallic core 3 e This crimping can be carried out in hexagonal form (case of FIG. 5), or by deep punching a rib 16 (case of Figure 6). In all cases, it can be seen that after fixing, the terminal 1 according to the invention covers the insulating sheath 4 over the entire length 15 of the second sleeve 8, thus ensuring the continuity of the mechanical resistance of the assembly facing d possible transverse bending stresses
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8513502A FR2586865A1 (en) | 1985-09-04 | 1985-09-04 | Electrical connection lug, especially for external installations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8513502A FR2586865A1 (en) | 1985-09-04 | 1985-09-04 | Electrical connection lug, especially for external installations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2586865A1 true FR2586865A1 (en) | 1987-03-06 |
Family
ID=9322825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8513502A Withdrawn FR2586865A1 (en) | 1985-09-04 | 1985-09-04 | Electrical connection lug, especially for external installations |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2586865A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2784238A1 (en) * | 1998-10-03 | 2000-04-07 | Smiths Industries Plc | Connecting unit for providing coupling and screening, has electrical wire with conductors, and connecting device with tubular part crimped around screening tube in which concave surface faces wire |
| WO2007075934A1 (en) | 2005-12-22 | 2007-07-05 | Tensolite Company | Integral bonding attachment |
-
1985
- 1985-09-04 FR FR8513502A patent/FR2586865A1/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2784238A1 (en) * | 1998-10-03 | 2000-04-07 | Smiths Industries Plc | Connecting unit for providing coupling and screening, has electrical wire with conductors, and connecting device with tubular part crimped around screening tube in which concave surface faces wire |
| US6485335B1 (en) | 1998-10-03 | 2002-11-26 | Smiths Industries Public Limited Company | Electrical connection |
| WO2007075934A1 (en) | 2005-12-22 | 2007-07-05 | Tensolite Company | Integral bonding attachment |
| EP1964213B1 (en) * | 2005-12-22 | 2017-08-16 | Carlisle Interconnect Technologies, Inc. | Integral bonding attachment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |