EP0485295A1 - Anschlussstück für elektrische Leiter, insbesondere für Erdabgriffe - Google Patents

Anschlussstück für elektrische Leiter, insbesondere für Erdabgriffe Download PDF

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Publication number
EP0485295A1
EP0485295A1 EP91403001A EP91403001A EP0485295A1 EP 0485295 A1 EP0485295 A1 EP 0485295A1 EP 91403001 A EP91403001 A EP 91403001A EP 91403001 A EP91403001 A EP 91403001A EP 0485295 A1 EP0485295 A1 EP 0485295A1
Authority
EP
European Patent Office
Prior art keywords
connection
stainless steel
earth
piece
tubular
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
Application number
EP91403001A
Other languages
English (en)
French (fr)
Other versions
EP0485295B1 (de
Inventor
Michel Vassallucci
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DUCLOS CHIMIE
Original Assignee
DUCLOS CHIMIE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DUCLOS CHIMIE filed Critical DUCLOS CHIMIE
Publication of EP0485295A1 publication Critical patent/EP0485295A1/de
Application granted granted Critical
Publication of EP0485295B1 publication Critical patent/EP0485295B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—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
    • H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors
    • 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
    • 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

Definitions

  • the present invention relates to an element or piece for connecting electrical conductors, in particular earth connections.
  • This invention applies more specifically to the connection between them of electrical conductors having connection surfaces of a different metallic nature: for example one of these surfaces can be made of copper while the other surface is made of stainless steel.
  • connection systems generally reveal bimetallic contacts.
  • the risks of corrosion of such bimetallic contacts are well known and the use of these connection systems results in a questioning of the quality of the connections over time.
  • connection systems or parts making it possible to remedy the drawbacks mentioned above of the connection devices currently available.
  • the present invention therefore relates to a connecting piece of electrical conductors, in particular for earth connections, characterized in that, at the level of the connection between electrical conductors having connection surfaces of different metallic nature, it only has surfaces of contact between elements of identical or practically identical metallic nature.
  • the connecting piece comprises at least one tubular piece having on the one hand a wall of sufficiently small thickness to be able to be easily deformed and on the other hand an internal surface made of a metal of a different nature from that constituting its external surface, said tubular part playing the role of an intermediate contact part at the connection and receiving one of the conductors at for example, connect an earth cable.
  • said tubular part is made of stainless steel and its internal surface is made of copper.
  • this connecting piece is in the form of a cylindrical piece of stainless steel having a frustoconical bore opening onto a cylindrical cavity in which one of the conductors to be connected is positioned.
  • this cylindrical part being further provided with a transverse bore in which is housed said tubular part receiving the second conductor to be connected for example an earth cable.
  • the connecting piece is in the form of a stainless steel sleeve provided with a bore in which said tubular part is positioned, said sleeve being further provided with a stainless steel screw to tighten one of the conductors to be connected, for example an earth stake, this tightening being carried out between the end of said screw and the outer wall of said tubular piece receiving the second conductor to be connected for example a grounding cable.
  • the connecting piece which is the subject of the present invention, it allows the connection of an earth rod to an electric grounding cable, this cable being held in said tubular part in contact with the internal surface thereof and the end of the ground rod of earth being held in said connecting piece.
  • FIGS. 1 to 3 illustrate a first embodiment of the connection piece which is the subject of the invention.
  • This part is in the form of a connection collar making it possible, for example, to make an electrical connection between a cylindrical earth rod of stainless steel and an electric grounding cable made of copper.
  • the earth stake may in particular be of the type described in the French patent 8908405 filed June 23, 1989 by this licensee. However, this application is of course in no way limiting.
  • the connecting piece or collar according to the invention illustrated in FIGS. 1 to 3 is in the form of a cylindrical piece 1, made of stainless steel which has a frustoconical cavity 2 which opens into a cylindrical cavity 3 perpendicular to which is provided a bore 4 intended to receive a tubular part 5.
  • This tubular part 5 is produced using the same metal as that of the electrical conductor which must be positioned in the cavities 2 and 3 of the cylindrical part 1.
  • this tubular part 5 is made of stainless steel. It has a sufficiently thin wall so that it can be easily deformed and, moreover, it has an internal surface 6 which is made of a metal identical to that of the conductor which must be positioned in said tubular part 5. Consequently, in the present application example, the internal surface 6 of the tubular part 5 made of stainless steel is made of copper.
  • connection according to the present invention only comprises contacts between contact surfaces of identical metallic nature, that is to say copper-copper (internal surface 6 of the tubular part 5 in contact with the copper cable 8) and stainless steel - stainless steel (cyl cavity 3 of the connecting piece 1 in contact with the post 7 made of stainless steel).
  • this connecting piece is in the form of a sleeve 9 made of stainless steel and which is provided with a bore 4 ′ in which is positioned and mechanically locked a tubular piece 5 ′ identical to the tubular part 5 of the connecting part described above with reference to FIGS. 1 to 3. Consequently, this tubular part 5 ′ is made of stainless steel, it has an internal surface 6 ′ made of the same metal as that constituting the cable electric 8 ′ that it must receive (in this example it is therefore copper and its wall is thin enough to be easily distorted).
  • the sleeve 9 also includes a clamping screw 13 which is positioned perpendicular to the tubular part 5 ′ and facing the external wall of the latter so as to be able to tighten the other element to be connected (for example a pick-up stake earth) against this outer wall, as will be described below.
  • connection is made by positioning the sleeve 9 on the end of the earth stake 7 ′ and placing the end of the earth cable 8 ′ inside the tubular part 5 ′ ( Figure 5 ).
  • the tightening screw is then screwed (this operation has been shown diagrammatically by an arrow in FIG. 6), which allows on the one hand to obtain an effective mechanical locking of the earth stake 7 ′ between the free end of the screw 13 and the external wall of the tubular part 5 ′ and on the other hand to effect an effective mechanical locking of the earthing cable 8 ′ inside the tubular element 5 ′ whose sufficiently thin wall s 'is deformed during this tightening operation of the screw 13 as can be seen in Figure 6.
  • connection according to the present invention only comprises contacts between contact surfaces of identical metallic nature, that is to say copper-copper (internal surface 6 ′ of the tubular part 5 ′ in contact with the copper cable 8 ′) And stainless steel-stainless steel (a internal damage of the connection sleeve 9 in contact with the post 7 ′ made of stainless steel).

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Communication Cables (AREA)
  • Multi-Conductor Connections (AREA)
  • Insulated Conductors (AREA)
EP91403001A 1990-11-07 1991-11-07 Anschlussstück für elektrische Leiter, insbesondere für Erdabgriffe Expired - Lifetime EP0485295B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9013805A FR2668861B1 (fr) 1990-11-07 1990-11-07 Piece de raccordement de conducteurs electriques, notamment pour prise de terre.
FR9013805 1990-11-07

Publications (2)

Publication Number Publication Date
EP0485295A1 true EP0485295A1 (de) 1992-05-13
EP0485295B1 EP0485295B1 (de) 1995-04-19

Family

ID=9401939

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91403001A Expired - Lifetime EP0485295B1 (de) 1990-11-07 1991-11-07 Anschlussstück für elektrische Leiter, insbesondere für Erdabgriffe

Country Status (4)

Country Link
EP (1) EP0485295B1 (de)
AT (1) ATE121569T1 (de)
DE (1) DE69109056D1 (de)
FR (1) FR2668861B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2320697A (en) * 1996-12-24 1998-07-01 Motorola Ltd Crimping arrangement, method and tool
WO2006042587A1 (de) * 2004-10-14 2006-04-27 Contitech Techno-Chemie Gmbh Crimpverbindung
EP4498529A1 (de) * 2023-07-25 2025-01-29 Taesung Co., Ltd. Erdstange

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE570193A (de) *
FR875114A (fr) * 1941-05-06 1942-09-07 Comp Generale Electricite Perfectionnement aux bornes de connexion
DE1025035B (de) * 1953-07-15 1958-02-27 Int Standard Electric Corp Verfahren zum Herstellen einer loesbaren elektrischen Verbindung zwischen einem Leiter und einem Klemmteil unter Verwendung eines federnden Verbinders sowie Montagewerkzeug zur Durchfuehrung des Verfahrens
DE1916895A1 (de) * 1968-04-12 1969-11-06 Amp Inc Verbindungsklemmen zur Schweissverbindung mit elektrischen Leitungsdraehten
US3895851A (en) * 1973-08-23 1975-07-22 Amp Inc Brittle-surfaced connector
US4156793A (en) * 1977-06-27 1979-05-29 Carlson Fred B Ground rod assembly

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE570193A (de) *
FR875114A (fr) * 1941-05-06 1942-09-07 Comp Generale Electricite Perfectionnement aux bornes de connexion
DE1025035B (de) * 1953-07-15 1958-02-27 Int Standard Electric Corp Verfahren zum Herstellen einer loesbaren elektrischen Verbindung zwischen einem Leiter und einem Klemmteil unter Verwendung eines federnden Verbinders sowie Montagewerkzeug zur Durchfuehrung des Verfahrens
DE1916895A1 (de) * 1968-04-12 1969-11-06 Amp Inc Verbindungsklemmen zur Schweissverbindung mit elektrischen Leitungsdraehten
US3895851A (en) * 1973-08-23 1975-07-22 Amp Inc Brittle-surfaced connector
US4156793A (en) * 1977-06-27 1979-05-29 Carlson Fred B Ground rod assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2320697A (en) * 1996-12-24 1998-07-01 Motorola Ltd Crimping arrangement, method and tool
WO2006042587A1 (de) * 2004-10-14 2006-04-27 Contitech Techno-Chemie Gmbh Crimpverbindung
EP4498529A1 (de) * 2023-07-25 2025-01-29 Taesung Co., Ltd. Erdstange

Also Published As

Publication number Publication date
FR2668861A1 (fr) 1992-05-07
EP0485295B1 (de) 1995-04-19
DE69109056D1 (de) 1995-05-24
ATE121569T1 (de) 1995-05-15
FR2668861B1 (fr) 1995-06-02

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