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GB2012098A - Telecommunication cables - Google Patents

Telecommunication cables

Info

Publication number
GB2012098A
GB2012098A GB7846569A GB7846569A GB2012098A GB 2012098 A GB2012098 A GB 2012098A GB 7846569 A GB7846569 A GB 7846569A GB 7846569 A GB7846569 A GB 7846569A GB 2012098 A GB2012098 A GB 2012098A
Authority
GB
United Kingdom
Prior art keywords
interstices
areas
filling material
filling
weakness
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
GB7846569A
Other versions
GB2012098B (en
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
Priority to GB7846569A priority Critical patent/GB2012098B/en
Publication of GB2012098A publication Critical patent/GB2012098A/en
Application granted granted Critical
Publication of GB2012098B publication Critical patent/GB2012098B/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
    • 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
    • H01B13/30—Drying; Impregnating

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulated Conductors (AREA)

Abstract

In a method of filling the interstices of a multi-element flexible body, especially the core of a telecommunication cable, with a filling material such as petroleum jelly, a layer of paper or other insulating material is applied to the flexible body, the layer having throughout its length a plurality of discrete, mutually spaced areas of weakness. The covered flexible body is caused to pass through a chamber into which filling material is pumped under pressure such that filling material flows through the areas of weakness into the interstices of the body to fill the interstices. The areas of weakness are of such a form that substantial flow of filling material from the interstices through the areas to the exterior of the overlying layer is prevented. The overlying layer can be applied to the body in a process separate from the steps of filling the interstices and applying a waterproof sheath.
GB7846569A 1977-11-29 1978-11-29 Telecommunication cables Expired GB2012098B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7846569A GB2012098B (en) 1977-11-29 1978-11-29 Telecommunication cables

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4964177 1977-11-29
GB7846569A GB2012098B (en) 1977-11-29 1978-11-29 Telecommunication cables

Publications (2)

Publication Number Publication Date
GB2012098A true GB2012098A (en) 1979-07-18
GB2012098B GB2012098B (en) 1982-05-19

Family

ID=26266525

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7846569A Expired GB2012098B (en) 1977-11-29 1978-11-29 Telecommunication cables

Country Status (1)

Country Link
GB (1) GB2012098B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2181466A (en) * 1985-10-11 1987-04-23 Bridon Plc Blocking of strand and rope
EP2863398A1 (en) * 2013-10-18 2015-04-22 Nexans Water and gas tight stranded conductor and umbilical comprising this

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2181466A (en) * 1985-10-11 1987-04-23 Bridon Plc Blocking of strand and rope
EP2863398A1 (en) * 2013-10-18 2015-04-22 Nexans Water and gas tight stranded conductor and umbilical comprising this

Also Published As

Publication number Publication date
GB2012098B (en) 1982-05-19

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Legal Events

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