CA2008682A1 - Method of and apparatus for making mineral insulated cable - Google Patents
Method of and apparatus for making mineral insulated cableInfo
- Publication number
- CA2008682A1 CA2008682A1 CA2008682A CA2008682A CA2008682A1 CA 2008682 A1 CA2008682 A1 CA 2008682A1 CA 2008682 A CA2008682 A CA 2008682A CA 2008682 A CA2008682 A CA 2008682A CA 2008682 A1 CA2008682 A1 CA 2008682A1
- Authority
- CA
- Canada
- Prior art keywords
- insulated cable
- mineral insulated
- making mineral
- grooves
- blocks
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/004—Apparatus or processes specially adapted for manufacturing conductors or cables for manufacturing rigid-tube cables
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/42—Heating elements having the shape of rods or tubes non-flexible
- H05B3/48—Heating elements having the shape of rods or tubes non-flexible heating conductor embedded in insulating material
- H05B3/52—Apparatus or processes for filling or compressing insulating material in tubes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Electric Cables (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Electric Cable Installation (AREA)
- Paper (AREA)
- Ropes Or Cables (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
- Insulated Conductors (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
Blocks (60, 65) of magnesium oxide or other mineral insulant are formed with grooves (62). Copper conductors (63) are laid in the grooves (62) and the blocks (60, 65) are held in place on the conductors (63) by a layer of insulating tape (66). A copper tube (68) is formed around the layer (66), and the whole is then subjected to alternating steps of drawing or rolling and annealing to form a mineral insulated cable.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8901911.1 | 1989-01-28 | ||
GB898901911A GB8901911D0 (en) | 1989-01-28 | 1989-01-28 | Method of and apparatus for making mineral insulated cable and mineral insulated cable made by such or apparatus |
GB898927533A GB8927533D0 (en) | 1989-12-06 | 1989-12-06 | Method of and apparatus for making mineral insulated cable and mineral insulated cable made by such method or apparatus |
GB8927533.3 | 1989-12-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2008682A1 true CA2008682A1 (en) | 1990-07-28 |
CA2008682C CA2008682C (en) | 1998-12-29 |
Family
ID=26294890
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002008682A Expired - Lifetime CA2008682C (en) | 1989-01-28 | 1990-01-26 | Method of and apparatus for making mineral insulated cable |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP0382359B1 (en) |
JP (1) | JPH02270226A (en) |
AT (1) | ATE87393T1 (en) |
AU (1) | AU615372B2 (en) |
CA (1) | CA2008682C (en) |
DE (1) | DE69001142T2 (en) |
DK (1) | DK0382359T3 (en) |
ES (1) | ES2040554T3 (en) |
HK (1) | HK76993A (en) |
IE (1) | IE62978B1 (en) |
NO (1) | NO900386L (en) |
NZ (1) | NZ232262A (en) |
SG (1) | SG66193G (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0393264A1 (en) * | 1989-04-18 | 1990-10-24 | Inco Alloys Limited | Method for making mineral insulated metal sheathed cables |
GB9010582D0 (en) * | 1990-05-11 | 1990-07-04 | Ass Elect Ind | Manufacture of mineral insulated electric cables |
DE10125061C1 (en) * | 2001-05-23 | 2003-02-27 | Bosch Gmbh Robert | Production of a metal casing line used for lambda probes arranged in combustion engines comprises using a filler body formed by pressing powder |
DE102004048596A1 (en) * | 2004-10-06 | 2006-04-13 | Robert Bosch Gmbh | Method for producing a metal sheathed cable |
RU2570508C2 (en) * | 2010-04-09 | 2015-12-10 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | Insulating blocks and methods of their installation in heaters with insulated conductor |
JO3139B1 (en) | 2011-10-07 | 2017-09-20 | Shell Int Research | Forming insulated conductors using a final reduction step after heat treating |
CN104733134A (en) * | 2015-03-27 | 2015-06-24 | 沈汉财 | Method for assembling magnesium oxide knob insulators of mineral insulating fireproof cable |
CN107785122B (en) * | 2017-09-20 | 2019-08-13 | 中天合金技术有限公司 | A kind of preparation process of seamless Through ground wire |
CN110853834A (en) * | 2018-08-20 | 2020-02-28 | 浙江万马股份有限公司 | Preparation method of prefabricated magnesium oxide knob insulator mineral insulated cable |
CN111383796B (en) * | 2020-03-12 | 2021-02-02 | 广州市穗羽电线电缆有限公司 | Novel mineral insulated cable and preparation method thereof |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE708904C (en) * | 1936-06-06 | 1941-07-31 | Siemens & Halske Akt Ges | Method for attaching spacers to an electrical conductor, in particular for telecommunication cables that are insulated from air space |
DE912949C (en) * | 1944-03-19 | 1954-06-08 | Siemens Ag | Method for applying spacer bodies to the inner conductor of concentric high-frequency lines |
BE474207A (en) * | 1945-09-07 | |||
GB1109403A (en) * | 1966-03-31 | 1968-04-10 | Decca Ltd | Improvements in or relating to position indicators for use in mobile craft |
NL8003259A (en) * | 1979-07-27 | 1981-01-29 | Okazaki Mfg Co Ltd | CABLE ASSEMBLY, METHOD FOR PRODUCING THE SAME |
US4317003A (en) * | 1980-01-17 | 1982-02-23 | Gray Stanley J | High tensile multiple sheath cable |
DE3137956A1 (en) * | 1981-09-24 | 1983-04-28 | Lothar 5190 Stolberg Hanf | Electrical cable and a method for its production |
-
1990
- 1990-01-22 EP EP90300604A patent/EP0382359B1/en not_active Expired - Lifetime
- 1990-01-22 ES ES199090300604T patent/ES2040554T3/en not_active Expired - Lifetime
- 1990-01-22 DK DK90300604.7T patent/DK0382359T3/en active
- 1990-01-22 AT AT90300604T patent/ATE87393T1/en not_active IP Right Cessation
- 1990-01-22 DE DE9090300604T patent/DE69001142T2/en not_active Expired - Fee Related
- 1990-01-25 AU AU48842/90A patent/AU615372B2/en not_active Ceased
- 1990-01-26 JP JP2017646A patent/JPH02270226A/en active Pending
- 1990-01-26 CA CA002008682A patent/CA2008682C/en not_active Expired - Lifetime
- 1990-01-26 NO NO90900386A patent/NO900386L/en unknown
- 1990-01-26 NZ NZ232262A patent/NZ232262A/en unknown
- 1990-01-29 IE IE32490A patent/IE62978B1/en not_active IP Right Cessation
-
1993
- 1993-05-20 SG SG661/93A patent/SG66193G/en unknown
- 1993-07-29 HK HK769/93A patent/HK76993A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0382359B1 (en) | 1993-03-24 |
AU4884290A (en) | 1990-08-02 |
JPH02270226A (en) | 1990-11-05 |
ATE87393T1 (en) | 1993-04-15 |
IE62978B1 (en) | 1995-03-08 |
NO900386D0 (en) | 1990-01-26 |
DK0382359T3 (en) | 1993-04-19 |
HK76993A (en) | 1993-08-06 |
NZ232262A (en) | 1991-12-23 |
EP0382359A1 (en) | 1990-08-16 |
AU615372B2 (en) | 1991-09-26 |
DE69001142D1 (en) | 1993-04-29 |
IE900324L (en) | 1990-07-28 |
DE69001142T2 (en) | 1993-08-12 |
CA2008682C (en) | 1998-12-29 |
SG66193G (en) | 1993-08-06 |
NO900386L (en) | 1990-07-30 |
ES2040554T3 (en) | 1993-10-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |