CA2008682A1 - Method of and apparatus for making mineral insulated cable - Google Patents

Method of and apparatus for making mineral insulated cable

Info

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
Application number
CA2008682A
Other languages
French (fr)
Other versions
CA2008682C (en
Inventor
Dennis Gill
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.)
CITY ELECTRICAL FACTORS Ltd
Original Assignee
Individual
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
Priority claimed from GB898901911A external-priority patent/GB8901911D0/en
Priority claimed from GB898927533A external-priority patent/GB8927533D0/en
Application filed by Individual filed Critical Individual
Publication of CA2008682A1 publication Critical patent/CA2008682A1/en
Application granted granted Critical
Publication of CA2008682C publication Critical patent/CA2008682C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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.
CA002008682A 1989-01-28 1990-01-26 Method of and apparatus for making mineral insulated cable Expired - Lifetime CA2008682C (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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