EP0377275A3 - Insulated electric wire - Google Patents

Insulated electric wire Download PDF

Info

Publication number
EP0377275A3
EP0377275A3 EP19890311060 EP89311060A EP0377275A3 EP 0377275 A3 EP0377275 A3 EP 0377275A3 EP 19890311060 EP19890311060 EP 19890311060 EP 89311060 A EP89311060 A EP 89311060A EP 0377275 A3 EP0377275 A3 EP 0377275A3
Authority
EP
European Patent Office
Prior art keywords
tube
insulator
electric wire
conductor
insulated electric
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.)
Withdrawn
Application number
EP19890311060
Other languages
German (de)
French (fr)
Other versions
EP0377275A2 (en
Inventor
Richard John Murphy
Stephen John Ellis
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.)
Associated Electrical Industries Ltd
Original Assignee
Associated Electrical Industries 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
Application filed by Associated Electrical Industries Ltd filed Critical Associated Electrical Industries Ltd
Publication of EP0377275A2 publication Critical patent/EP0377275A2/en
Publication of EP0377275A3 publication Critical patent/EP0377275A3/en
Withdrawn legal-status Critical Current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
    • H01B13/0016—Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment
    • 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
    • H01B13/06—Insulating conductors or cables
    • H01B13/14—Insulating conductors or cables by extrusion
    • H01B13/145—Pretreatment or after-treatment

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)

Abstract

Insulated electric wire is manufactured by the continuous extrusion of a tube of polymeric insulator (13), drawing an electric conductor (10) axially through the tube (13) the conductor drawing the tube to cause radial shrinkage of the tube onto the conductor, and directing cooling fluid (20) (via orifices 22, 23) at an intermediate portion (14) of the insulator tube so that the molecular orientation of the polymeric insulator is frozen and maintained. This reduces, and renders controllable, the force needed to strip the insulator.
EP19890311060 1989-01-06 1989-10-26 Insulated electric wire Withdrawn EP0377275A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8900256 1989-01-06
GB898900256A GB8900256D0 (en) 1989-01-06 1989-01-06 Insulated electric wire

Publications (2)

Publication Number Publication Date
EP0377275A2 EP0377275A2 (en) 1990-07-11
EP0377275A3 true EP0377275A3 (en) 1990-11-14

Family

ID=10649676

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890311060 Withdrawn EP0377275A3 (en) 1989-01-06 1989-10-26 Insulated electric wire

Country Status (2)

Country Link
EP (1) EP0377275A3 (en)
GB (2) GB8900256D0 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI99158C (en) * 1991-06-28 1997-10-10 Uponor Bv Method for protecting the surface of a plastic pipe for connection by electric welding and an electrically weldable plastic pipe
FI96396C (en) * 1992-12-28 1996-06-25 Uponor Bv Process for forming a double-layered plastic tube for material transport and a double-layered plastic tube formed by the method
FR2801529B1 (en) * 1999-11-26 2002-09-06 Axon Cable Sa METHOD AND DEVICE FOR RECOVERING THERMOPLASTIC MATERIAL WASTE FROM AN ELECTRIC CABLE MANUFACTURING LINE

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2091363A5 (en) * 1970-05-09 1972-01-14 Herberts & Co K Plastic sheaths for metal wires
EP0007814A1 (en) * 1978-08-02 1980-02-06 BICC Public Limited Company Manufacture of extruded products
GB1582021A (en) * 1976-04-22 1980-12-31 Western Electric Co Extruding material around an elongate core
DE3542302C1 (en) * 1985-11-27 1987-01-08 Siemens Ag Extrusion of plastic insulation onto a conductor
US4705583A (en) * 1986-04-14 1987-11-10 Northern Telecom Limited Method and apparatus for supporting an article of indefinite length

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4425292A (en) * 1981-09-29 1984-01-10 Western Electric Company, Inc. Hybrid extrusion methods
US4493747A (en) * 1982-01-27 1985-01-15 At&T Technologies, Inc. Method for insulating conductors with a crystalline plastic material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2091363A5 (en) * 1970-05-09 1972-01-14 Herberts & Co K Plastic sheaths for metal wires
GB1582021A (en) * 1976-04-22 1980-12-31 Western Electric Co Extruding material around an elongate core
EP0007814A1 (en) * 1978-08-02 1980-02-06 BICC Public Limited Company Manufacture of extruded products
DE3542302C1 (en) * 1985-11-27 1987-01-08 Siemens Ag Extrusion of plastic insulation onto a conductor
US4705583A (en) * 1986-04-14 1987-11-10 Northern Telecom Limited Method and apparatus for supporting an article of indefinite length

Also Published As

Publication number Publication date
GB2226788A (en) 1990-07-11
GB8900256D0 (en) 1989-03-08
EP0377275A2 (en) 1990-07-11
GB8924077D0 (en) 1989-12-13

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Effective date: 19910111

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Effective date: 19930331