GB2418785A - Tube For Installation Of Flexible Cable - Google Patents

Tube For Installation Of Flexible Cable Download PDF

Info

Publication number
GB2418785A
GB2418785A GB0525839A GB0525839A GB2418785A GB 2418785 A GB2418785 A GB 2418785A GB 0525839 A GB0525839 A GB 0525839A GB 0525839 A GB0525839 A GB 0525839A GB 2418785 A GB2418785 A GB 2418785A
Authority
GB
United Kingdom
Prior art keywords
tube
inner layer
blend
density polyethylene
installation
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.)
Granted
Application number
GB0525839A
Other versions
GB2418785B (en
GB0525839D0 (en
Inventor
David John Stockton
Jonathan Paul Taylor
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.)
Emtelle UK Ltd
Original Assignee
Emtelle UK Ltd
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 Emtelle UK Ltd filed Critical Emtelle UK Ltd
Publication of GB0525839D0 publication Critical patent/GB0525839D0/en
Publication of GB2418785A publication Critical patent/GB2418785A/en
Application granted granted Critical
Publication of GB2418785B publication Critical patent/GB2418785B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/133—Rigid pipes of plastics with or without reinforcement the walls consisting of two layers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/4459—Ducts; Conduits; Hollow tubes for air blown fibres
    • G02B6/4464—
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4479—Manufacturing methods of optical cables
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
    • G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
    • G02B6/52—Underground or underwater installation; Installation through tubing, conduits or ducts using fluid, e.g. air
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
    • H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
    • H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
    • H02G1/086—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using fluid as pulling means, e.g. liquid, pressurised gas or suction means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401—Optical cables
    • G02B6/4429—Means specially adapted for strengthening or protecting the cables
    • G02B6/4438—Means specially adapted for strengthening or protecting the cables for facilitating insertion by fluid drag in ducts or capillaries

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

A co-extruded tube (2) for receiving fibre optic cables by blowing comprises an outer layer (4) co-extruded with an inner layer (6). The tube (2) has an outer diameter of 5 mm; an inner diameter of 3.5 mm and the radial thickness of the inner layer lining material is approximately 0.1 mm. The outer layer (4) is formed from low-density polyethylene (LDPE). The inner layer (6) is a high-density polyethylene (HDPE) carrier containing a blend of polyamide and polyether block amides with a silicone slip agent. The blend is produced by combining these ingredients using heat and pressure and a thermoplastic compounding line.

Description

GB 2418785 A continuation (72) Inventor(s): David John Stockton Jonathan
Paul Taylor (74) Agent and/or Address for Service: Urquhart-Dykes & Lord LLP St Nicholas Chambers, Amen Corner, NEWCASTLE-UPON-TYNE, NE1 1 PE, United Kingdom
GB0525839A 2003-06-23 2004-04-06 Tube For Installation Of Flexible Cable Expired - Fee Related GB2418785B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0314462.3A GB0314462D0 (en) 2003-06-23 2003-06-23 Tube for installation of flexible cable
PCT/GB2004/001498 WO2004114489A1 (en) 2003-06-23 2004-04-06 Tube for installation of flexible cable

Publications (3)

Publication Number Publication Date
GB0525839D0 GB0525839D0 (en) 2006-02-01
GB2418785A true GB2418785A (en) 2006-04-05
GB2418785B GB2418785B (en) 2006-12-13

Family

ID=27637058

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0314462.3A Ceased GB0314462D0 (en) 2003-06-23 2003-06-23 Tube for installation of flexible cable
GB0525839A Expired - Fee Related GB2418785B (en) 2003-06-23 2004-04-06 Tube For Installation Of Flexible Cable

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0314462.3A Ceased GB0314462D0 (en) 2003-06-23 2003-06-23 Tube for installation of flexible cable

Country Status (3)

Country Link
EP (1) EP1636888A1 (en)
GB (2) GB0314462D0 (en)
WO (1) WO2004114489A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005039482A1 (en) * 2005-08-18 2007-02-22 CCS Technology, Inc., Wilmington Optical transmission element and method for producing an optical transmission element
DE602006000170T2 (en) 2006-03-15 2008-07-24 Nexans Electrical line
WO2009042566A2 (en) * 2007-09-25 2009-04-02 Polyone Corporation Concentric insulation sleeve having inner and outer surfaces with different properties
CZ2009707A3 (en) * 2009-10-27 2011-05-04 Kabelovna Kabex A.S. Fire-inhibiting protective wiring tube for cables
ES2681428T3 (en) * 2011-07-18 2018-09-13 Wavin B.V. Multitubular cable system
CN105375411A (en) * 2015-11-17 2016-03-02 成都科创佳思科技有限公司 Electric power pipeline structure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156837A (en) * 1984-03-29 1985-10-16 British Telecomm Optical fibre transmission lines
US4952021A (en) * 1988-05-18 1990-08-28 Sumitomo Electric Industries Ltd. Pressure transporting system
EP0432171B1 (en) * 1988-07-05 1993-12-22 BRITISH TELECOMMUNICATIONS public limited company Transmission line ducts
EP0752604A1 (en) * 1995-07-04 1997-01-08 BICC Public Limited Company Optical fibre assemblies and ducts therefor
US5916945A (en) * 1995-12-19 1999-06-29 Elf Atochem S.A. Antistatic and adherent compositions based on polyamide

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2156837A (en) * 1984-03-29 1985-10-16 British Telecomm Optical fibre transmission lines
US4952021A (en) * 1988-05-18 1990-08-28 Sumitomo Electric Industries Ltd. Pressure transporting system
EP0432171B1 (en) * 1988-07-05 1993-12-22 BRITISH TELECOMMUNICATIONS public limited company Transmission line ducts
EP0752604A1 (en) * 1995-07-04 1997-01-08 BICC Public Limited Company Optical fibre assemblies and ducts therefor
US5916945A (en) * 1995-12-19 1999-06-29 Elf Atochem S.A. Antistatic and adherent compositions based on polyamide

Also Published As

Publication number Publication date
GB2418785B (en) 2006-12-13
EP1636888A1 (en) 2006-03-22
GB0314462D0 (en) 2003-07-23
GB0525839D0 (en) 2006-02-01
WO2004114489A1 (en) 2004-12-29

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20090406