GB1388974A - Fully-filled electric cable - Google Patents

Fully-filled electric cable

Info

Publication number
GB1388974A
GB1388974A GB2649473A GB2649473A GB1388974A GB 1388974 A GB1388974 A GB 1388974A GB 2649473 A GB2649473 A GB 2649473A GB 2649473 A GB2649473 A GB 2649473A GB 1388974 A GB1388974 A GB 1388974A
Authority
GB
United Kingdom
Prior art keywords
ply
thermoplastics
layer
coating
wrapped
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
GB2649473A
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.)
Industrie Pirelli SpA
Pirelli and C SpA
Original Assignee
Industrie Pirelli SpA
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 Industrie Pirelli SpA, Pirelli SpA filed Critical Industrie Pirelli SpA
Publication of GB1388974A publication Critical patent/GB1388974A/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
    • H01B13/06—Insulating conductors or cables
    • H01B13/14—Insulating conductors or cables by extrusion
    • 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
    • H01B11/02—Cables with twisted pairs or quads
    • H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
    • 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
    • H01B7/0216—Two layers

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Ropes Or Cables (AREA)
  • Insulated Conductors (AREA)

Abstract

1388974 Filled Cables INDUSTRIE PIRELLI SpA 4 June 1973 [7 June 1972] 26494/73 Heading H1A In a multi-conductor cable in which the core 1 and an optional insulating tape layer 2 are both impregnated with a gel filling medium, a composite two-ply insulating tape 3 has an impregnated inner ply 3<1>, e.g. of paper, and an impermeable outer ply 3<11> of thermoplastics material. A surrounding screening layer comprises a metal tape 4, e.g. of aluminium, which carries an inner coating 4<1>, and an outer coating 4<11>, both of thermoplastics material. A thermoplastics sheath 5 is extruded directly over the screening layer, becoming bonded to its outer coating 4<11>, and the heat of the extrusion process may also cause the inner coating 4<1> to become bonded to the outer ply 3<11>. Alternatively, this latter bonding operation may be carried out as a separate process. Suitable thermoplastics materials include polyethylene, polypropylene, ethylene-propylene copolymers and P.V.C. Insulating layer 3 may either be wound helically or wrapped around with its edges extended longitudinally and overlapped. The coated screen 4 is preferably wrapped, with its longitudinal edges overlapped, but it may instead be helically wound. Where both are wrapped, the seams are oppositely disposed. Insulating layer 2 may be omitted.
GB2649473A 1972-06-07 1973-06-04 Fully-filled electric cable Expired GB1388974A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT25330/72A IT956327B (en) 1972-06-07 1972-06-07 BUILT-IN TELEPHONE CABLE ENHANCED

Publications (1)

Publication Number Publication Date
GB1388974A true GB1388974A (en) 1975-04-03

Family

ID=11216358

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2649473A Expired GB1388974A (en) 1972-06-07 1973-06-04 Fully-filled electric cable

Country Status (11)

Country Link
US (1) US3790694A (en)
AR (1) AR196670A1 (en)
AU (1) AU469704B2 (en)
BR (1) BR7303475D0 (en)
CA (1) CA993067A (en)
FR (1) FR2188264B1 (en)
GB (1) GB1388974A (en)
IN (1) IN139144B (en)
IT (1) IT956327B (en)
SE (1) SE392984B (en)
ZA (1) ZA733808B (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010315A (en) * 1975-04-25 1977-03-01 The Dow Chemical Company Shielding tape for cables
CA1075331A (en) * 1976-02-05 1980-04-08 Western Electric Company, Incorporated Dual jacketed cable and methods of making
US4292463A (en) * 1977-12-14 1981-09-29 The Dow Chemical Company Cable shielding tape and cable
CA1079512A (en) 1978-11-16 1980-06-17 Basil V.E. Walton Powdered telephone cable filling compound
US4322574A (en) * 1979-09-17 1982-03-30 The Dow Chemical Co. Cable shielding tape and cable
US4402789A (en) * 1981-09-18 1983-09-06 Northern Telecom Limited Method of coating an insulated electrical conductor
US4454379A (en) * 1982-05-21 1984-06-12 General Electric Company Semi-conductive, moisture barrier shielding tape and cable
CA1205988A (en) * 1982-08-10 1986-06-17 David E. Vokey Method and apparatus for manufacturing cables having composite shield and armour sheath designs
US4456785A (en) * 1982-09-17 1984-06-26 Gulf & Western Manufacturing Company Shielded cable and method of manufacture thereof
NL8700680A (en) * 1987-03-23 1988-10-17 Nkf Kabel Bv ASSEMBLY OF AT LEAST AN ELECTRIC CONDUCTOR WITH AN ELECTRICALLY CONDUCTIVE COATING AND INSULATION BETWEEN THIS CONDUCTOR AND THE COATING.
US5105057A (en) * 1991-05-20 1992-04-14 Weinberg Martin J Insulated magnet wire and method of forming the same
US5325457A (en) * 1991-09-20 1994-06-28 Bottoms Jack Jr Field protected self-supporting fiber optic cable
US5249248A (en) * 1991-11-27 1993-09-28 At&T Bell Laboratories Communication cable having a core wrap binder which provides water-blocking and strength properties
FR2686727B1 (en) * 1992-01-28 1997-01-31 Filotex Sa ELECTRIC CONDUCTOR AND ELECTRIC CABLE CONTAINING SUCH A CONDUCTOR.
WO1993024938A1 (en) * 1992-05-26 1993-12-09 Union Carbide Chemicals & Plastics Technology Corporation Telephone cables
WO1993024935A1 (en) * 1992-05-26 1993-12-09 Union Carbide Chemicals & Plastics Technology Corporation Telephone cables
US5380591A (en) * 1992-12-30 1995-01-10 Union Carbide Chemicals & Plastics Technology Corporation Telephone cables
US6120897A (en) * 1993-04-15 2000-09-19 Union Carbide Chemicals & Plastics Technology Corporation Telephone cables
JPH0686223U (en) * 1993-05-20 1994-12-13 株式会社潤工社 Coaxial cable and coaxial flat cable using the same
MXPA03011491A (en) * 2003-12-11 2005-06-16 Servicios Condumex Sa Improved overhead and underground telephone lead-in cable for voice, data and video transmission services.
US9117566B2 (en) 2013-03-14 2015-08-25 Teledyne Instruments, Inc. Impedance controlled subsea ethernet oil filled hose

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3332138A (en) * 1965-08-11 1967-07-25 Gen Cable Corp Method and apparatus for making precision sized tubing
US3321572A (en) * 1965-09-13 1967-05-23 Gen Cable Corp Dual laminated telephone cable sheath
US3622683A (en) * 1968-11-22 1971-11-23 Superior Continental Corp Telephone cable with improved crosstalk properties
US3607487A (en) * 1968-12-02 1971-09-21 Bell Telephone Labor Inc Waterproof electrical cable
GB1277505A (en) * 1969-11-19 1972-06-14 British Insulated Callenders Improvements in or relating to telecommunication cables
US3614299A (en) * 1970-07-17 1971-10-19 Exxon Research Engineering Co Low thermal conductivity cable core wrap
US3733225A (en) * 1970-09-04 1973-05-15 Western Electric Co Method of applying a waterproofing jelly-like compound to an elongated strand and forming a sheath about the strand
US3681515A (en) * 1971-04-29 1972-08-01 Dow Chemical Co Electric cables and like conductors

Also Published As

Publication number Publication date
FR2188264B1 (en) 1977-04-29
IT956327B (en) 1973-10-10
AU5656773A (en) 1974-12-12
ZA733808B (en) 1974-04-24
IN139144B (en) 1976-05-15
US3790694A (en) 1974-02-05
AR196670A1 (en) 1974-02-12
CA993067A (en) 1976-07-13
FR2188264A1 (en) 1974-01-18
SE392984B (en) 1977-04-25
BR7303475D0 (en) 1974-07-11
AU469704B2 (en) 1976-02-19

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee