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GB854774A - Improvements in electric power cables - Google Patents

Improvements in electric power cables

Info

Publication number
GB854774A
GB854774A GB1805558A GB1805558A GB854774A GB 854774 A GB854774 A GB 854774A GB 1805558 A GB1805558 A GB 1805558A GB 1805558 A GB1805558 A GB 1805558A GB 854774 A GB854774 A GB 854774A
Authority
GB
United Kingdom
Prior art keywords
polythene
june
layers
electric power
tape
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
GB1805558A
Inventor
Stanley Roy Rundle
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.)
Balfour Beatty PLC
Original Assignee
BICC PLC
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 BICC PLC filed Critical BICC PLC
Priority to GB1805558A priority Critical patent/GB854774A/en
Priority to FR796252A priority patent/FR1226169A/en
Publication of GB854774A publication Critical patent/GB854774A/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
    • H01B9/02—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Insulating Bodies (AREA)

Abstract

854,774. Laminates. BRITISH INSULATED CALLENDER'S CABLES Ltd. June 4, 1959 [June 5, 1958], No. 18055/58. Class 140. [Also in Group XXXVI] A dielectric screening tape for electric power cables comprises a layer of flexible synthetic organic thermoplastic material, preferably polythene, sandwiched between two fibrous tapes loaded with conducting material, preferably paper or fabric loaded with conducting carbon. The polythene may be " lightly irradiated," i.e. so treated with high energy radiation as to cause cross-linking of 60-80% of the material, the remainder being organic solvent-soluble and heat-softenable. The layers may be adhered together by winding them in superposed relation and under tension on a mandrel and heating in an oven to soften the polythene, by extruding unirradiated polythene between two layers of tape and subsequently hotcalendering, or by coating the polythene with an adhesive such as a rubber-resin composition adding the tapes and calendering.
GB1805558A 1958-06-05 1958-06-05 Improvements in electric power cables Expired GB854774A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1805558A GB854774A (en) 1958-06-05 1958-06-05 Improvements in electric power cables
FR796252A FR1226169A (en) 1958-06-05 1959-06-01 Improvements to electrical power distribution cables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1805558A GB854774A (en) 1958-06-05 1958-06-05 Improvements in electric power cables

Publications (1)

Publication Number Publication Date
GB854774A true GB854774A (en) 1960-11-23

Family

ID=10105865

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1805558A Expired GB854774A (en) 1958-06-05 1958-06-05 Improvements in electric power cables

Country Status (2)

Country Link
FR (1) FR1226169A (en)
GB (1) GB854774A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2065473A1 (en) * 1969-10-22 1971-07-30 British Insulated Callenders
FR2065472A1 (en) * 1969-10-22 1971-07-30 British Insulated Callenders
WO2016061230A1 (en) * 2014-10-17 2016-04-21 3M Innovative Properties Company Dielectric material with enhanced breakdown strength

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2065473A1 (en) * 1969-10-22 1971-07-30 British Insulated Callenders
FR2065472A1 (en) * 1969-10-22 1971-07-30 British Insulated Callenders
WO2016061230A1 (en) * 2014-10-17 2016-04-21 3M Innovative Properties Company Dielectric material with enhanced breakdown strength
US20170250008A1 (en) * 2014-10-17 2017-08-31 3M Innovative Properties Company Dielectric material with enhanced breakdown strength
US10121570B2 (en) * 2014-10-17 2018-11-06 3M Innovative Properties Company Dielectric material with enhanced breakdown strength

Also Published As

Publication number Publication date
FR1226169A (en) 1960-07-08

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