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 PDFInfo
- 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
Links
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims description 10
- 239000011707 mineral Substances 0.000 title claims description 10
- 238000000034 method Methods 0.000 title claims description 7
- 238000003466 welding Methods 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 7
- 239000011261 inert gas Substances 0.000 claims description 5
- 238000005219 brazing Methods 0.000 claims description 2
- 239000000945 filler Substances 0.000 description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- QFXZANXYUCUTQH-UHFFFAOYSA-N ethynol Chemical group OC#C QFXZANXYUCUTQH-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000623 nickel–chromium alloy Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Images
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
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49194—Assembling elongated conductors, e.g., splicing, etc.
- Y10T29/49195—Assembling 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)
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)
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)
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 |
-
1980
- 1980-07-04 FR FR8014919A patent/FR2486318A1/fr active Granted
-
1981
- 1981-06-26 EP EP81104973A patent/EP0043524B1/fr not_active Expired
- 1981-06-26 DE DE8181104973T patent/DE3166168D1/de not_active Expired
- 1981-07-02 CA CA000381022A patent/CA1163791A/fr not_active Expired
- 1981-07-03 SU SU813309300A patent/SU1095890A3/ru active
- 1981-07-03 JP JP56104357A patent/JPS5757472A/ja active Pending
- 1981-07-06 AU AU72594/81A patent/AU544853B2/en not_active Ceased
- 1981-07-06 US US06/280,583 patent/US4375720A/en not_active Expired - Fee Related
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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