EP0043524B1 - Procédé de jonctionnement de câbles blindés de faible diamètre à isolant minéral comprimé - Google Patents

Procédé de jonctionnement de câbles blindés de faible diamètre à isolant minéral comprimé Download PDF

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Publication number
EP0043524B1
EP0043524B1 EP81104973A EP81104973A EP0043524B1 EP 0043524 B1 EP0043524 B1 EP 0043524B1 EP 81104973 A EP81104973 A EP 81104973A EP 81104973 A EP81104973 A EP 81104973A EP 0043524 B1 EP0043524 B1 EP 0043524B1
Authority
EP
European Patent Office
Prior art keywords
cables
tube element
diameter
length
welding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP81104973A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0043524A1 (fr
Inventor
Jean-Claude Bourget
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.)
Cables de Lyon SA
Original Assignee
Cables de Lyon SA
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 Cables de Lyon SA filed Critical Cables de Lyon SA
Publication of EP0043524A1 publication Critical patent/EP0043524A1/fr
Application granted granted Critical
Publication of EP0043524B1 publication Critical patent/EP0043524B1/fr
Expired legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/58Electrically-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
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/49Method of mechanical manufacture
    • Y10T29/49002Electrical device making
    • Y10T29/49117Conductor or circuit manufacturing
    • Y10T29/49194Assembling elongated conductors, e.g., splicing, etc.
    • Y10T29/49195Assembling elongated conductors, e.g., splicing, etc. with end-to-end orienting

Definitions

  • the present invention relates to a method of joining shielded cables of small diameter with compressed mineral insulator, in particular thermocouple cables.
  • the object of the present invention is to enable two shielded cables with compressed mineral insulation to be welded to the end, avoiding any excess thickness at the junction, and obtaining a junction having a mechanical resistance little different from that of the initial cable; it also aims to ensure the continuity of the conductors and to maintain the dielectric characteristics of the initial cables.
  • Welding operations are preferably carried out with an arc under inert gas without filler metal.
  • the shrinking of the ends of the cables to be joined is preferably carried out according to an angle cone at the apex approximately 20 °.
  • thermocouple cables of the kind sold by the applicant under the brand name "Pyrotenax”.
  • the two cables to be joined 1 and 2 each 3 mm in diameter, each include two conductors made of nickel-chromium alloy and alloyed nickel, a sheath of stainless steel and a mineral insulator formed by magnesia.
  • a tube element 3 with a slightly larger diameter, for example 4 mm, length 20 mm is prepared which is split longitudinally between two generators spaced about 1 mm apart (not shown). .
  • the ends 6, 7 of the cables are shrunk to a final diameter of approximately 1.6 mm, with a shrinkage cone angle 4.5, of 20 °, over a length close to 15 mm.
  • the ends are stripped over 5 mm in length.
  • the junction tube element is put in place around the ends of the sheaths, and is temporarily held in place by pointing by arc welding under inert gas.
  • the mineral insulation 14 is then reconstituted in the junction zone by introducing the powdered insulation through the slit of the tube element until it is filled. Then the slot is closed by exerting on the tube element a radial compression and welding its edges with an arc under inert gas without filler metal.
  • a final welding or brazing of the edges of the tube element is then carried out on the cable sheaths and the remaining gaps are filled with solder 15, 16.
  • junction area to a drawing pass so as to calibrate it to the initial diameter of the cables.
  • thermocouple cable junction thus manufactured a tensile strength of approximately 80% of that of the initial cable when the ends of the cable element were welded on the cable sheaths, and of approximately 50 % of that of the original cable when they were brazed.

Landscapes

  • Cable Accessories (AREA)
  • Gas Or Oil Filled Cable Accessories (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
EP81104973A 1980-07-04 1981-06-26 Procédé de jonctionnement de câbles blindés de faible diamètre à isolant minéral comprimé Expired EP0043524B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8014919A FR2486318A1 (fr) 1980-07-04 1980-07-04 Procede de jonctionnement de cables blindes de faible diametre a isolant mineral comprime
FR8014919 1980-07-04

Publications (2)

Publication Number Publication Date
EP0043524A1 EP0043524A1 (fr) 1982-01-13
EP0043524B1 true EP0043524B1 (fr) 1984-09-19

Family

ID=9243866

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81104973A Expired EP0043524B1 (fr) 1980-07-04 1981-06-26 Procédé de jonctionnement de câbles blindés de faible diamètre à isolant minéral comprimé

Country Status (8)

Country Link
US (1) US4375720A (ru)
EP (1) EP0043524B1 (ru)
JP (1) JPS5757472A (ru)
AU (1) AU544853B2 (ru)
CA (1) CA1163791A (ru)
DE (1) DE3166168D1 (ru)
FR (1) FR2486318A1 (ru)
SU (1) SU1095890A3 (ru)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4580874A (en) * 1983-06-27 1986-04-08 Olin Corporation Optical fiber cable repair and joining technique and kit for performing the same
US4585304A (en) * 1983-09-06 1986-04-29 Virginia Technique for repairing and joining small diameter optical fiber cables
US4590329A (en) * 1985-01-18 1986-05-20 Westinghouse Electric Corp. Protective enclosure for splice connection
FR2612007B1 (fr) * 1987-03-03 1994-02-18 Framatome Procede de raccordement d'un cable electrique a isolant mineral, notamment dans le batiment reacteur d'une chaudiere nucleaire
US6148514A (en) * 1999-04-02 2000-11-21 Beaufrand; Emmanuel Marie Eugene Method for butt-end electromechanical splicing
FR2832558A1 (fr) * 2001-11-22 2003-05-23 Framatome Connectors Int Manchon d'accouplement d'un cable a isolant mineral et procede de raccordement
EP2695247A4 (en) * 2011-04-08 2015-09-16 Shell Int Research SYSTEMS FOR CONNECTING INSULATED LADDER
CN110280881A (zh) * 2019-07-18 2019-09-27 广东先导先进材料股份有限公司 一种热电偶断线修复方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2393935A (en) * 1941-10-31 1946-01-29 Standard Telephones Cables Ltd Joint for electric power cables
GB987514A (en) * 1963-03-21 1965-03-31 Pyrotenax Ltd Improvements in or relating to joints in metal-sheathed mineral insulated electric cables
GB1031863A (en) * 1963-12-04 1966-06-02 Rosemount Eng Co Ltd Improvements in or relating to electrical conductors and their manufacture
GB1317654A (en) * 1970-06-29 1973-05-23 Pirelli General Cable Works Electric cable joints
LU67219A1 (ru) * 1973-03-15 1973-05-22
US3903595A (en) * 1973-07-17 1975-09-09 Fujikura Ltd Method of forming an air tight dam for communication cables

Also Published As

Publication number Publication date
AU7259481A (en) 1982-04-22
DE3166168D1 (en) 1984-10-25
CA1163791A (fr) 1984-03-20
EP0043524A1 (fr) 1982-01-13
FR2486318B1 (ru) 1982-09-03
JPS5757472A (en) 1982-04-06
US4375720A (en) 1983-03-08
FR2486318A1 (fr) 1982-01-08
AU544853B2 (en) 1985-06-13
SU1095890A3 (ru) 1984-05-30

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