EP0636744A1 - Câble et leur utilisation - Google Patents

Câble et leur utilisation Download PDF

Info

Publication number
EP0636744A1
EP0636744A1 EP94305616A EP94305616A EP0636744A1 EP 0636744 A1 EP0636744 A1 EP 0636744A1 EP 94305616 A EP94305616 A EP 94305616A EP 94305616 A EP94305616 A EP 94305616A EP 0636744 A1 EP0636744 A1 EP 0636744A1
Authority
EP
European Patent Office
Prior art keywords
rope
water
materials
moisture
sheath
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.)
Withdrawn
Application number
EP94305616A
Other languages
German (de)
English (en)
Inventor
Christopher Simon Pegge
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.)
Balfour Beatty PLC
Original Assignee
BICC PLC
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 BICC PLC filed Critical BICC PLC
Publication of EP0636744A1 publication Critical patent/EP0636744A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • D07B1/162—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber enveloping sheathing
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
    • D07B1/141—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising liquid, pasty or powder agents, e.g. lubricants or anti-corrosive oils or greases
    • D07B1/142—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising liquid, pasty or powder agents, e.g. lubricants or anti-corrosive oils or greases for ropes or rope components built-up from fibrous or filamentary material
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
    • D07B1/165—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics characterised by a plastic or rubber inlay
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2401/00—Aspects related to the problem to be solved or advantage
    • D07B2401/20—Aspects related to the problem to be solved or advantage related to ropes or cables
    • D07B2401/202—Environmental resistance
    • D07B2401/204—Moisture handling

Definitions

  • This invention relates to non-metallic ropes and their use in relation to overhead electric lines.
  • Greasing of the rope is only partly effective and risks contamination that presents another risk to the electrical properties of the rope.
  • a non-metallic rope has the interstices both within and between its strands filled with a water-blocking material and is enclosed in a close-fitting water-tight sheath of electrically insulating material.
  • the rope may be made of polyester, aramid or other polyamide, or other conventional fibres (but synthetic ones are preferred because they have less affinity for moisture than most natural fibres) and may be of any conventional strand structure.
  • the water-blocking material may be of any of the three classes conventionally used for this purposes in electric and/or optical cables, namely
  • the sheath should ideally be hydrophobic, arc-resistant, infusible and incombustible, but substantial departure from the ideal can be tolerated provided the risk of catching fire or of gross melting is negligible since the sheath will not be relied on to contribute to the strength of the rope.
  • Conventional cable-sheathing materials may be used.
  • the sheath is applied by vacuum extrusion to achieve maximum grip on the underlying part of the rope.
  • rope structures with smooth surfaces are best avoided.
  • ropes will reduce in diameter significantly under tension are not preferred since this can cause the sheath to separate from the stranding and cause failure of the rope when pulled.
  • a first rope in accordance with the invention comprises a core about 10mm in diameter comprising a plait of 16 strands formed around a core of three strands. All 19 strands are made of aramid fibres coated in water-swellable material, the coated fibres being sold by Akzo Chemie under the trademark TWARON as water-blocked TWARON fibres .
  • This core is sheathed with 1.5mm radial thickness of the thermoplastic rubber sold by Monsanto Ltd under the trademark SANTOPRENE by vacuum extrusion at a pressure differential of 350kPa.
  • Example 2 This is substantially the same as Example 1 except that instead of incorporating TWARON tape the fibrous part of the core is fully impregnated with a standard cable-filling grade of petroleum jelly.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Ropes Or Cables (AREA)
  • Insulated Conductors (AREA)
EP94305616A 1993-07-30 1994-07-28 Câble et leur utilisation Withdrawn EP0636744A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB939315783A GB9315783D0 (en) 1993-07-30 1993-07-30 Ropes and the use thereof
GB9315783 1993-07-30

Publications (1)

Publication Number Publication Date
EP0636744A1 true EP0636744A1 (fr) 1995-02-01

Family

ID=10739691

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94305616A Withdrawn EP0636744A1 (fr) 1993-07-30 1994-07-28 Câble et leur utilisation

Country Status (2)

Country Link
EP (1) EP0636744A1 (fr)
GB (2) GB9315783D0 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106095027A (zh) * 2016-06-28 2016-11-09 国网山东省电力公司莒县供电公司 一种计算机主板的芯片散热器的安装治具

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63211392A (ja) * 1987-02-23 1988-09-02 日立電線株式会社 送電線用絶縁ロ−プ
JPS63211391A (ja) * 1987-02-23 1988-09-02 日立電線株式会社 送電線用絶縁ロ−プ

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2455273C3 (de) * 1974-11-22 1978-01-19 Feiten & Guilleaume Carlswerk AG, 5000 Köln Kranseil aus Kunststoff
US4202164A (en) * 1978-11-06 1980-05-13 Amsted Industries Incorporated Lubricated plastic impregnated aramid fiber rope
US4624097A (en) * 1984-03-23 1986-11-25 Greening Donald Co. Ltd. Rope

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63211392A (ja) * 1987-02-23 1988-09-02 日立電線株式会社 送電線用絶縁ロ−プ
JPS63211391A (ja) * 1987-02-23 1988-09-02 日立電線株式会社 送電線用絶縁ロ−プ

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 8841, Derwent World Patents Index; AN 88-289140 *
DATABASE WPI Week 8841, Derwent World Patents Index; AN 88-289141 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106095027A (zh) * 2016-06-28 2016-11-09 国网山东省电力公司莒县供电公司 一种计算机主板的芯片散热器的安装治具

Also Published As

Publication number Publication date
GB2280455A (en) 1995-02-01
GB9415268D0 (en) 1994-09-21
GB9315783D0 (en) 1993-09-15

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19941116

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT NL

17Q First examination report despatched

Effective date: 19961022

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19970304