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SE8104460L - PROCEDURE FOR IMPROVING THE LONGITUDINAL DENSITY OF TELECOMMUNICATION CABLES - Google Patents

PROCEDURE FOR IMPROVING THE LONGITUDINAL DENSITY OF TELECOMMUNICATION CABLES

Info

Publication number
SE8104460L
SE8104460L SE8104460A SE8104460A SE8104460L SE 8104460 L SE8104460 L SE 8104460L SE 8104460 A SE8104460 A SE 8104460A SE 8104460 A SE8104460 A SE 8104460A SE 8104460 L SE8104460 L SE 8104460L
Authority
SE
Sweden
Prior art keywords
sleeve
improving
procedure
powder
water
Prior art date
Application number
SE8104460A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
M Pellier
Original Assignee
Pirelli Treficable
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 Treficable filed Critical Pirelli Treficable
Publication of SE8104460L publication Critical patent/SE8104460L/en

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • 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
    • H01B7/288—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable using hygroscopic material or material swelling in the presence of liquid

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Insulated Conductors (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Ropes Or Cables (AREA)

Abstract

The longitudinal leaktightness of a telecommunications cable (which contains, from the core to the periphery, at least one bundle of insulated conductors 1, 2, 3, 4 coated with a hydrophobic filling substance 5, a sleeve 6, a metal screen 7 and an external sheath 9) is achieved by a powder which swells in water, dispersed in a viscous agent which does not adversely affect its swelling capacity, in a layer 10 interposed between the sleeve 6 and the metal screen 7. The powder may be a cellulose derivative and the viscous agent may be polybutene, glycerol or a water-soluble wax. The screen 7 may be of Al tape and the sleeve 6 of non-woven fibres e.g. paper. <IMAGE>
SE8104460A 1980-07-21 1981-07-20 PROCEDURE FOR IMPROVING THE LONGITUDINAL DENSITY OF TELECOMMUNICATION CABLES SE8104460L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8016299A FR2487107A1 (en) 1980-07-21 1980-07-21 METHOD FOR IMPROVING THE LONGITUDINAL SEALING OF TELECOMMUNICATION CABLES

Publications (1)

Publication Number Publication Date
SE8104460L true SE8104460L (en) 1982-01-22

Family

ID=9244468

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8104460A SE8104460L (en) 1980-07-21 1981-07-20 PROCEDURE FOR IMPROVING THE LONGITUDINAL DENSITY OF TELECOMMUNICATION CABLES

Country Status (11)

Country Link
AR (1) AR226901A1 (en)
AU (1) AU7273581A (en)
BR (1) BR8104681A (en)
DE (1) DE3128779A1 (en)
ES (1) ES8205075A1 (en)
FR (1) FR2487107A1 (en)
GB (1) GB2080998A (en)
IT (1) IT1136683B (en)
NO (1) NO812490L (en)
PT (1) PT74381B (en)
SE (1) SE8104460L (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2566955A1 (en) * 1984-06-29 1986-01-03 Cables De Lyon Geoffroy Delore Composite sealing material for an electrical cable and process for its manufacture
GB8422458D0 (en) * 1984-09-05 1984-10-10 Telephone Cables Ltd Cables
GB8425378D0 (en) * 1984-10-08 1984-11-14 Ass Elect Ind Electrical cables
FR2575110B1 (en) * 1984-12-21 1987-10-16 Intissel Sa WATERPROOFING COMPOSITE MATERIAL, ITS PREPARATION AND COMPOSITION FOR USE THEREOF, AS WELL AS ITS USES
US5218011A (en) * 1986-03-26 1993-06-08 Waterguard Industries, Inc. Composition for protecting the contents of an enclosed space from damage by invasive water
US5461195A (en) * 1986-03-26 1995-10-24 Waterguard Industries, Inc. Filled telecommunications cable having temperature stable mutual capacitance
US5256705A (en) * 1986-03-26 1993-10-26 Waterguard Industries, Inc. Composition with tackifier for protecting communication wires
US4963695A (en) * 1986-05-16 1990-10-16 Pirelli Cable Corporation Power cable with metallic shielding tape and water swellable powder
GB8704938D0 (en) * 1987-03-03 1987-04-08 Bp Chem Int Ltd Cables
AU622112B2 (en) * 1987-05-01 1992-04-02 Waterguard Industries, Inc. Gel composition
US5010209A (en) * 1988-12-20 1991-04-23 Pirelli Cable Corp. Power cable with water swellable agents and elongated metal elements outside cable insulation
NL9001960A (en) * 1989-09-07 1991-04-02 Felten & Guilleaume Energie Removing traces of moisture from cable - by applying electrochemical mixt. of metal powders in or on material which swells up in water, seals cable, and decomposes water
WO2001046965A1 (en) * 1999-12-20 2001-06-28 Pirelli Cavi E Sistem I.P.A. Electric cable resistant to water penetration
DE502004011260D1 (en) * 2004-03-10 2010-07-22 Nexans Multi-strand stranding

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE795126A (en) * 1972-04-01 1973-05-29 Kerpenwerk G M B H & Co MATERIAL FOR SEALING, IN PARTICULAR ELECTRICAL CABLES, LONGITUDINALLY
ES202111Y (en) * 1974-04-06 1976-11-01 Standard Electrica, S. A. IMPROVEMENTS IN ELECTRIC CABLES PROTECTED AGAINST PENETRATION OF WATER.
ZA786576B (en) * 1978-11-22 1980-02-27 South African Inventions Waterproofing or insulated electric cables

Also Published As

Publication number Publication date
IT8122434A0 (en) 1981-06-19
BR8104681A (en) 1982-04-06
GB2080998A (en) 1982-02-10
DE3128779A1 (en) 1982-04-29
ES503522A0 (en) 1982-06-01
ES8205075A1 (en) 1982-06-01
PT74381A (en) 1982-03-01
PT74381B (en) 1983-09-27
FR2487107A1 (en) 1982-01-22
AU7273581A (en) 1982-09-16
IT1136683B (en) 1986-09-03
AR226901A1 (en) 1982-08-31
NO812490L (en) 1982-01-22

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