GB1190962A - Improvements in Electrically Insulating Papers - Google Patents

Improvements in Electrically Insulating Papers

Info

Publication number
GB1190962A
GB1190962A GB2576067A GB2576067A GB1190962A GB 1190962 A GB1190962 A GB 1190962A GB 2576067 A GB2576067 A GB 2576067A GB 2576067 A GB2576067 A GB 2576067A GB 1190962 A GB1190962 A GB 1190962A
Authority
GB
United Kingdom
Prior art keywords
strip
paper
cable
layer
electrically insulating
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
GB2576067A
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.)
Pirelli and C SpA
Original Assignee
Pirelli SpA
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 Pirelli SpA filed Critical Pirelli SpA
Publication of GB1190962A publication Critical patent/GB1190962A/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
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/30—Drying; Impregnating
    • 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
    • H01B3/48—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials
    • H01B3/485—Other fibrous materials fabric
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/02—Disposition of insulation
    • H01B7/0208—Cables with several layers of insulating material
    • H01B7/0225—Three or more layers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/2495—Thickness [relative or absolute]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/24992—Density or compression of components
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31971—Of carbohydrate
    • Y10T428/31993—Of paper

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Insulating Bodies (AREA)
  • Paper (AREA)
  • Organic Insulating Materials (AREA)

Abstract

1,190,962. Covering cores with strip material. PIRELLI S.p.A. 5 June, 1967 [25 March, 1967], No. 25760/67. Heading B8G. [Also in Divisions D2 and H1] A strip or strips of a compound paper having at least one layer of a first component paper having a density not exceeding 0-7 g./c.c., and at least one layer of a second component paper having an impermeability of not less than 10<SP>7</SP> Emanueli units is helically wound on to a cable, the pitch of the helix being greater than the width of the strip, the cable being covered by multiple overlapping layers of the strip. The covering may be impregnated with mineral and/or synthetic oils. If a two componentlayer paper is used, then the high-impermeability layer is preferably towards the cable.
GB2576067A 1967-03-25 1967-06-05 Improvements in Electrically Insulating Papers Expired GB1190962A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1418967 1967-03-25

Publications (1)

Publication Number Publication Date
GB1190962A true GB1190962A (en) 1970-05-06

Family

ID=11144892

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2576067A Expired GB1190962A (en) 1967-03-25 1967-06-05 Improvements in Electrically Insulating Papers

Country Status (10)

Country Link
US (1) US3598691A (en)
AT (1) AT276521B (en)
BE (1) BE710750A (en)
CH (1) CH500562A (en)
DE (1) DE1765011A1 (en)
ES (1) ES352284A1 (en)
FR (1) FR1554336A (en)
GB (1) GB1190962A (en)
NO (1) NO122079B (en)
SE (1) SE339840B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2340228B2 (en) * 1973-08-08 1976-02-12 Siemens AG, 1000 Berlin und 8000 München ELECTRIC MULTILAYER INSULATION FOR REFRIGERATED CABLES, IN PARTICULAR SUPRAL CONDUCTING THREE-PHASE CABLES
IT1135060B (en) * 1981-01-16 1986-08-20 Pirelli Cavi Spa ELECTRIC CABLE IMPREGNATED WITH INSULATING FLUID

Also Published As

Publication number Publication date
FR1554336A (en) 1969-01-17
ES352284A1 (en) 1969-07-01
SE339840B (en) 1971-10-25
NO122079B (en) 1971-05-18
AT276521B (en) 1969-11-25
BE710750A (en) 1968-06-17
DE1765011A1 (en) 1971-07-01
US3598691A (en) 1971-08-10
CH500562A (en) 1970-12-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years