GB520999A - Improvements in or relating to submarine cables - Google Patents

Improvements in or relating to submarine cables

Info

Publication number
GB520999A
GB520999A GB32032/38A GB3203238A GB520999A GB 520999 A GB520999 A GB 520999A GB 32032/38 A GB32032/38 A GB 32032/38A GB 3203238 A GB3203238 A GB 3203238A GB 520999 A GB520999 A GB 520999A
Authority
GB
United Kingdom
Prior art keywords
water
cables
cable
wormings
submarine
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
GB32032/38A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables 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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB32032/38A priority Critical patent/GB520999A/en
Publication of GB520999A publication Critical patent/GB520999A/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
    • H01B7/14—Submarine cables

Landscapes

  • Insulated Conductors (AREA)

Abstract

520,999. Submarine cables. STANDARD TELEPHONES & CABLES, Ltd., SCOTT, T. R., and WESTON, W. K. Nov. 4, 1938, No. 32032. [Class 36] In a submarine cable, the insulation comprises a water-responsive material which, when brought into contact with water, as through a break, undergoes a change of state which tends to minimize the flow of water along the cable. Materials which swell, such as gelatine or agar agar, or materials which dissolve in the water and increase its viscosity, such as methyl cellulose, or admixtures thereof may be used. In cables having additional packings in the form of wormings between pairs or quads, one, some or all of the wormings may be replaced by one or more rods, tubes or tapes of the waterresponsive material. In low capacity cables for carrier operation with relatively large conductors, wormings of the material may be placed between the conductors. For an airspace high frequency cable, e.g. coaxial, screened pair or screened quad, some or all of the spacing means, such as discs or helices, may be of the water-responsive material ; such a cable mav also have inside the outer conductor a tube of such material. Specification 459,518 is referred to.
GB32032/38A 1938-11-04 1938-11-04 Improvements in or relating to submarine cables Expired GB520999A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB32032/38A GB520999A (en) 1938-11-04 1938-11-04 Improvements in or relating to submarine cables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32032/38A GB520999A (en) 1938-11-04 1938-11-04 Improvements in or relating to submarine cables

Publications (1)

Publication Number Publication Date
GB520999A true GB520999A (en) 1940-05-09

Family

ID=10332044

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32032/38A Expired GB520999A (en) 1938-11-04 1938-11-04 Improvements in or relating to submarine cables

Country Status (1)

Country Link
GB (1) GB520999A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507508A (en) * 1944-11-11 1950-05-16 Myron A Elliott Water sealing cable construction
US4326094A (en) * 1978-11-22 1982-04-20 South African Inventions Development Corporation Waterproofing of insulated electric cables
GB2164198A (en) * 1984-09-05 1986-03-12 Telephone Cables Ltd Cables
EP1347353A1 (en) * 2000-11-29 2003-09-24 Japan Science and Technology Corporation Flow control method for micro system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507508A (en) * 1944-11-11 1950-05-16 Myron A Elliott Water sealing cable construction
US4326094A (en) * 1978-11-22 1982-04-20 South African Inventions Development Corporation Waterproofing of insulated electric cables
GB2164198A (en) * 1984-09-05 1986-03-12 Telephone Cables Ltd Cables
EP1347353A1 (en) * 2000-11-29 2003-09-24 Japan Science and Technology Corporation Flow control method for micro system
EP1347353A4 (en) * 2000-11-29 2004-12-08 Japan Science & Tech Agency Flow control method for micro system

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