GB1266412A - - Google Patents

Info

Publication number
GB1266412A
GB1266412A GB1266412DA GB1266412A GB 1266412 A GB1266412 A GB 1266412A GB 1266412D A GB1266412D A GB 1266412DA GB 1266412 A GB1266412 A GB 1266412A
Authority
GB
United Kingdom
Prior art keywords
lumps
mixture
maximum particle
fine grain
enclosure
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
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 filed Critical
Publication of GB1266412A publication Critical patent/GB1266412A/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
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/002—Inhomogeneous material in general
    • H01B3/006—Other inhomogeneous material
    • 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
    • H02G15/00—Cable fittings
    • H02G15/003—Filling materials, e.g. solid or fluid insulation

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

1,266,412. Cable joints and terminations. BRITISH INSULATED CALLENDER'S CABLES Ltd. 27 Feb., 1970 [28 Feb., 1969], No. 10871/69. Addition to 1,157,435. Heading H2E. [Also in Division H1] A cable joint or termination is surrounded by an enclosure which is filled with an insulating mixture. The mixture comprises a fine grain filler having a maximum particle dimension of 750 microns, lumps of a solid substantially non- porous material and a liquid insulator which solidifies on cooling, adhering to the lumps of material. The mixture may be pre-mixed or the lumps may first be placed in the enclosure and a mixture of the fine grain filler and liquid poured in later. The lumps are preferably denser than the liquid insulator and may be gravel of maximum particle dimension 0À5 to 1À0 cm. or may be chippings of calcined flint, flint or granite. The fine grain filler may be fine grain sand of maximum particle dimension 200-500 microns. For filling a secondary enclosure for protecting large primary cable joint enclosures, lumps of maximum particle size 2cm. or greater may be used. A mixture for a resin-bonded glass fibre secondary joint enclosure surrounding a high voltage cable joint may contain one part by weight of asphaltic or Trinidad bituminous compound to three parts of gravel to three parts of bedding sand. These mixtures have a lower thermal resistivity than those previously employed.
GB1266412D 1969-02-28 1969-02-28 Expired GB1266412A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1087169 1969-02-28

Publications (1)

Publication Number Publication Date
GB1266412A true GB1266412A (en) 1972-03-08

Family

ID=9975861

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1266412D Expired GB1266412A (en) 1969-02-28 1969-02-28

Country Status (1)

Country Link
GB (1) GB1266412A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2194061A1 (en) * 1972-07-28 1974-02-22 Ceresines Sa Ra Finerie Junction box filling - for insulating cable ends
FR2394874A1 (en) * 1977-06-16 1979-01-12 Electric Power Res Inst FILLED POLYMER INSULATION BODY AND ITS REALIZATION PROCESS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2194061A1 (en) * 1972-07-28 1974-02-22 Ceresines Sa Ra Finerie Junction box filling - for insulating cable ends
FR2394874A1 (en) * 1977-06-16 1979-01-12 Electric Power Res Inst FILLED POLYMER INSULATION BODY AND ITS REALIZATION PROCESS

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees