AU615372B2 - Method of and apparatus for making mineral insulated cable and mineral insulated cable made by such method or apparatus - Google Patents

Method of and apparatus for making mineral insulated cable and mineral insulated cable made by such method or apparatus

Info

Publication number
AU615372B2
AU615372B2 AU48842/90A AU4884290A AU615372B2 AU 615372 B2 AU615372 B2 AU 615372B2 AU 48842/90 A AU48842/90 A AU 48842/90A AU 4884290 A AU4884290 A AU 4884290A AU 615372 B2 AU615372 B2 AU 615372B2
Authority
AU
Australia
Prior art keywords
insulated cable
mineral insulated
making
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.)
Ceased
Application number
AU48842/90A
Other versions
AU4884290A (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
CITY ELECTRICAL FACTORS Ltd
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 CITY ELECTRICAL FACTORS Ltd filed Critical CITY ELECTRICAL FACTORS Ltd
Publication of AU4884290A publication Critical patent/AU4884290A/en
Application granted granted Critical
Publication of AU615372B2 publication Critical patent/AU615372B2/en
Anticipated expiration legal-status Critical
Ceased 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)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
  • Insulated Conductors (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.
AU48842/90A 1989-01-28 1990-01-25 Method of and apparatus for making mineral insulated cable and mineral insulated cable made by such method or apparatus Ceased AU615372B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
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
GB8901911 1989-01-28
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 1989-12-06

Publications (2)

Publication Number Publication Date
AU4884290A AU4884290A (en) 1990-08-02
AU615372B2 true AU615372B2 (en) 1991-09-26

Family

ID=26294890

Family Applications (1)

Application Number Title Priority Date Filing Date
AU48842/90A Ceased AU615372B2 (en) 1989-01-28 1990-01-25 Method of and apparatus for making mineral insulated cable and mineral insulated cable made by such method or apparatus

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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU618921B2 (en) * 1989-04-18 1992-01-09 Inco Alloys Limited Method for making mineral insulated metal sheathed cables

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP2556721A4 (en) * 2010-04-09 2014-07-02 Shell Oil Co Insulating blocks and methods for installation in insulated conductor heaters
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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU131284B2 (en) * 1946-10-08 1946-10-31 Pyrotenax Limited Improvements in or relating tothe manufacture of metalsheathed electric cables
US3452434A (en) * 1966-03-31 1969-07-01 Kabel Metallwerke Ghh Method of making heat resistant electric cable

Family Cites Families (6)

* 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
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU131284B2 (en) * 1946-10-08 1946-10-31 Pyrotenax Limited Improvements in or relating tothe manufacture of metalsheathed electric cables
US3452434A (en) * 1966-03-31 1969-07-01 Kabel Metallwerke Ghh Method of making heat resistant electric cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU618921B2 (en) * 1989-04-18 1992-01-09 Inco Alloys Limited Method for making mineral insulated metal sheathed cables

Also Published As

Publication number Publication date
EP0382359B1 (en) 1993-03-24
NO900386L (en) 1990-07-30
JPH02270226A (en) 1990-11-05
NO900386D0 (en) 1990-01-26
ES2040554T3 (en) 1993-10-16
IE62978B1 (en) 1995-03-08
CA2008682C (en) 1998-12-29
EP0382359A1 (en) 1990-08-16
DE69001142D1 (en) 1993-04-29
CA2008682A1 (en) 1990-07-28
HK76993A (en) 1993-08-06
ATE87393T1 (en) 1993-04-15
AU4884290A (en) 1990-08-02
NZ232262A (en) 1991-12-23
DK0382359T3 (en) 1993-04-19
SG66193G (en) 1993-08-06
DE69001142T2 (en) 1993-08-12
IE900324L (en) 1990-07-28

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