GB1108762A - Improvements relating to high voltage electric cables - Google Patents

Improvements relating to high voltage electric cables

Info

Publication number
GB1108762A
GB1108762A GB3268564A GB3268564A GB1108762A GB 1108762 A GB1108762 A GB 1108762A GB 3268564 A GB3268564 A GB 3268564A GB 3268564 A GB3268564 A GB 3268564A GB 1108762 A GB1108762 A GB 1108762A
Authority
GB
United Kingdom
Prior art keywords
tape
conductive
aluminium
extrusion
cores
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
Application number
GB3268564A
Inventor
Oliver Sanders Johnson
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
Priority to GB3268564A priority Critical patent/GB1108762A/en
Priority to DE19651465203 priority patent/DE1465203A1/en
Publication of GB1108762A publication Critical patent/GB1108762A/en
Expired 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
    • H01B9/00—Power cables
    • H01B9/06—Gas-pressure cables; Oil-pressure cables; Cables for use in conduits under fluid pressure
    • H01B9/0644—Features relating to the dielectric of gas-pressure cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
    • H01B9/027—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients composed of semi-conducting layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H01B9/06—Gas-pressure cables; Oil-pressure cables; Cables for use in conduits under fluid pressure

Landscapes

  • Insulated Conductors (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

1,108,762. Extruding cable sheathings. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 28 July, 1965 [11 Aug., 1964], No. 32685/64. Heading B5A. [Also in Division H1] Using an extrusion nozzle as described in Specification 967,567, an electrical conductor is coated with multiple layers of polyolefin by simultaneous extrusion of an inner semiconductive layer, an intermediate insulating one and an outer semi-conductive one. Extrusion and subsequent controlled cooling conditions ensure that the layers become intimately bonded together. They are then subjected to a crosslinking process, suitably by irradiation with electrons, then a gas-permeable tape layer is applied to form a screen. This may be done by winding a copper tape helically over a conductive or semi-conductive textile bedding tape. One or more such cores may be enclosed in an aluminium sheath with space inside for a pressurized inert insulating gas. For example three cores may be bound together with tape and sheathed in an aluminium tube webbed about the core assembly from aluminium strip by highfrequency electric welding. The aluminium sheath may be externally protected against corrosion by an outer layer of organic material, such as extruded polyvinylchloride.
GB3268564A 1964-08-11 1964-08-11 Improvements relating to high voltage electric cables Expired GB1108762A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3268564A GB1108762A (en) 1964-08-11 1964-08-11 Improvements relating to high voltage electric cables
DE19651465203 DE1465203A1 (en) 1964-08-11 1965-08-10 High voltage gas pressure cables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3268564A GB1108762A (en) 1964-08-11 1964-08-11 Improvements relating to high voltage electric cables

Publications (1)

Publication Number Publication Date
GB1108762A true GB1108762A (en) 1968-04-03

Family

ID=10342471

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3268564A Expired GB1108762A (en) 1964-08-11 1964-08-11 Improvements relating to high voltage electric cables

Country Status (2)

Country Link
DE (1) DE1465203A1 (en)
GB (1) GB1108762A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4361606A (en) * 1980-09-30 1982-11-30 Monsanto Company Method for irradiation of polymeric laminates and product
US4520230A (en) * 1980-05-21 1985-05-28 The Furukawa Electric Co., Ltd. Cross-linked polyethylene insulated power cable with improved electric breakdown strength and method for manufacturing the same
CN102290136A (en) * 2011-06-09 2011-12-21 湖南金杯电缆有限公司 Power cable with outer conductor

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3315588A1 (en) * 1983-04-29 1984-10-31 Herbert Prof. 8031 Gröbenzell Prenzlau Heavy-duty cable
CN102266999A (en) * 2011-08-01 2011-12-07 江苏亨通线缆科技有限公司 Process for manufacturing railway signal cable

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4520230A (en) * 1980-05-21 1985-05-28 The Furukawa Electric Co., Ltd. Cross-linked polyethylene insulated power cable with improved electric breakdown strength and method for manufacturing the same
US4361606A (en) * 1980-09-30 1982-11-30 Monsanto Company Method for irradiation of polymeric laminates and product
CN102290136A (en) * 2011-06-09 2011-12-21 湖南金杯电缆有限公司 Power cable with outer conductor

Also Published As

Publication number Publication date
DE1465203A1 (en) 1969-01-16

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