GB1229372A - - Google Patents

Info

Publication number
GB1229372A
GB1229372A GB1229372DA GB1229372A GB 1229372 A GB1229372 A GB 1229372A GB 1229372D A GB1229372D A GB 1229372DA GB 1229372 A GB1229372 A GB 1229372A
Authority
GB
United Kingdom
Prior art keywords
cables
copolymer
sheath
net
polyethylene
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
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 filed Critical
Publication of GB1229372A publication Critical patent/GB1229372A/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
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
    • H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
    • H01B7/2855—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable using foamed plastic
    • 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
    • H01B13/32—Filling or coating with impervious material
    • H01B13/329—Filling or coating with impervious material the material being a foam
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

Abstract

1,229,372. Insulating cables. VEREINIGTE DRAHTUND KABELWERKE A.G. 2 May, 1969 [4 May, 1968], No. 22598/69. Heading H1A. A method of sealing cables longitudinally wherein after the introduction of a foamable material into the core, the core is wrapped with a wide-mesh net of polyethylene, an aluminium foil coated on both sides with a copolymer is applied over the net and an outer sheath consisting of polyethylene is applied over the foil, heat being supplied during the application of the outer sheath to cause the net to be bonded to the copolymer on the foil and the copolymer on the outer side of the aluminium foil to be bonded to its covering sheath. Polyurethane foam may be used as the foamable material and a non-resilient plastics band, e.g. of stretched polyethylene may be provided between the aluminium foil and the outer sheath. The additional plastics band may be omitted if the plastics sheath is applied directly and the foaming material applied subsequently in normal state for small cables and in micro encapsulated form for large cables.
GB1229372D 1968-05-04 1969-05-02 Expired GB1229372A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681765348 DE1765348B2 (en) 1968-05-04 1968-05-04 PROCEDURE FOR SEALING CABLES FROM LONGITUDINAL WATER

Publications (1)

Publication Number Publication Date
GB1229372A true GB1229372A (en) 1971-04-21

Family

ID=5698403

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1229372D Expired GB1229372A (en) 1968-05-04 1969-05-02

Country Status (8)

Country Link
JP (1) JPS4830755B1 (en)
BE (1) BE731313A (en)
DE (1) DE1765348B2 (en)
FR (1) FR2007822A1 (en)
GB (1) GB1229372A (en)
NL (1) NL6906316A (en)
NO (1) NO121554B (en)
SE (1) SE343423B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4281210A (en) * 1978-02-15 1981-07-28 Nl Industries, Inc. Electrical devices containing a grease compatible, mineral oil extended polyurethane
US5271081A (en) * 1992-06-18 1993-12-14 Halliburton Geophysical Services, Inc. Apparatus and method of blocking water migration between stranded signal conduits

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2751641A1 (en) * 1977-11-17 1979-05-23 Aeg Telefunken Kabelwerke Longitudinally water tight cable prodn. - carrying foamable material into cable core on woven tape, and foaming it there after applying sheath (NL 21.5.79)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4281210A (en) * 1978-02-15 1981-07-28 Nl Industries, Inc. Electrical devices containing a grease compatible, mineral oil extended polyurethane
US5271081A (en) * 1992-06-18 1993-12-14 Halliburton Geophysical Services, Inc. Apparatus and method of blocking water migration between stranded signal conduits

Also Published As

Publication number Publication date
SE343423B (en) 1972-03-06
DE1765348A1 (en) 1971-07-29
FR2007822A1 (en) 1970-01-16
NO121554B (en) 1971-03-15
BE731313A (en) 1969-09-15
DE1765348B2 (en) 1972-12-07
JPS4830755B1 (en) 1973-09-22
NL6906316A (en) 1969-11-06

Similar Documents

Publication Publication Date Title
CA957259A (en) Corrugated board-sulphur foam laminate and method of manufacturing same
GB1229372A (en)
GB1434775A (en) Insulating wires and cables with highly expanded polyolefin
CA991520A (en) Composite pipe wrap material and method
GB1169797A (en) Telecommunication Cable having Plastics-Insulated Cores and method of producing such a Cable
GB1012005A (en) Improvements in or relating to electric cable joints
GB1071762A (en) Method of enveloping an elongated member
CA1020199A (en) Composite plastic trim strip and method of making the same
GB1200434A (en) Longitudinally watertight telecommunications cables
CA823002A (en) Method of and apparatus for wrapping layered composite thermal insulation
IL34842A (en) Wrapped insulations for cables and the like and a method for producing them
CA849481A (en) Method of and apparatus for wrapping layered composite thermal insulation
GB1172483A (en) Improvements in electric cables
CA815220A (en) Foamed core laminated structure and method
CA836628A (en) Cellular structured plastic core for composite ski and process for the manufacture thereof
AU3135667A (en) Foamed plastic form and construction method
CA771015A (en) Method of winding thermoplastic resin sheeting into rolls and rolls obtained thereby
GB768477A (en) Improvements in or relating to stranded conductors for electric cables
CA825007A (en) Foam packaging method and construction
JPS53129259A (en) Production of high-frequency bonding or heat-fusing foam
CA732944A (en) Perforated thermoplastic packing material with increased tensile strength, and increased resistance to penetration of water
AU440334B2 (en) Method for fabricating and insulation layer for sealing structures
CA887622A (en) Cellular plastic foam insulation board structures and method for preparing same
AU438498B2 (en) Polyurethane foam structures with integral skin of improved properties and method of making
CA879803A (en) Composite foamed article and method of making same

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees