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GB776174A - Improvements in or relating to insulated electric cables and impregnating compounds therefor - Google Patents

Improvements in or relating to insulated electric cables and impregnating compounds therefor

Info

Publication number
GB776174A
GB776174A GB2496654A GB2496654A GB776174A GB 776174 A GB776174 A GB 776174A GB 2496654 A GB2496654 A GB 2496654A GB 2496654 A GB2496654 A GB 2496654A GB 776174 A GB776174 A GB 776174A
Authority
GB
United Kingdom
Prior art keywords
wax
synthetic
melting point
impregnating
compound
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
GB2496654A
Inventor
Albert King
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 GB2496654A priority Critical patent/GB776174A/en
Priority to ES0223448A priority patent/ES223448A2/en
Priority to CH2343555A priority patent/CH385310A/en
Publication of GB776174A publication Critical patent/GB776174A/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
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/30—Drying; Impregnating
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
    • C08L91/06—Waxes
    • C08L91/08—Mineral waxes
    • 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
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/20—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils
    • 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
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/20—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils
    • H01B3/22—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils hydrocarbons

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Paints Or Removers (AREA)
  • Organic Insulating Materials (AREA)

Abstract

776,174. Impregnating-compositions for electric insulation. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Aug. 26, 1955 [Aug. 27, 1954], No. 24966/54. Class 140. A micro-crystalline petroleum wax-impregnating compound for use in electric cables includes one or more synthetic waxes, each of which is either a hydrocarbon wax or a wax of a glyceryl nature and has a melting point between 85‹ and 150‹ C. and a power factor within the range 0.005-0.2 at 100‹ C. when measured at 50 c/s. and a stress of 8 kv/cm. The compound preferably contains from 1-40 per cent by weight of the synthetic wax and may also contain a low dielectric loss synthetic hydrocarbon wax having a power factor not greater than 0.005 and a melting point between 85‹ and 120‹ C. The synthetic hydrocarbon waxes may comprise a synthetic micro-crystalline wax obtained by the hydrogenation of carbon monoxide in accordance with the Fischer- Tropsch synthesis and having a melting point of 108-110‹ C. and an average molecular weight of about 600, or may comprise a polyethylene wax having a melting point of about 110‹ C. and a molecular weight of 2000-6000. The synthetic wax of a glyceryl nature may have a melting point of 94-97 C. or 140-143‹ C. The compound may also include, as one of its major ingredients, cable impregnating mineral oil and minor proportions of one or more plasticizers, anti-oxidants and metal sequestrators. Specifications 581,830, 698,055 and 735,960 are referred to.
GB2496654A 1954-08-27 1954-08-27 Improvements in or relating to insulated electric cables and impregnating compounds therefor Expired GB776174A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2496654A GB776174A (en) 1954-08-27 1954-08-27 Improvements in or relating to insulated electric cables and impregnating compounds therefor
ES0223448A ES223448A2 (en) 1954-08-27 1955-08-10 Improvements in or relating to insulated electric cables and impregnating compounds therefor
CH2343555A CH385310A (en) 1954-08-27 1955-08-23 Process for the production of an impregnation mixture, mixture produced by the process and use of this mixture for the production of electrical cables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2496654A GB776174A (en) 1954-08-27 1954-08-27 Improvements in or relating to insulated electric cables and impregnating compounds therefor

Publications (1)

Publication Number Publication Date
GB776174A true GB776174A (en) 1957-06-05

Family

ID=10220083

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2496654A Expired GB776174A (en) 1954-08-27 1954-08-27 Improvements in or relating to insulated electric cables and impregnating compounds therefor

Country Status (3)

Country Link
CH (1) CH385310A (en)
ES (1) ES223448A2 (en)
GB (1) GB776174A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3525798A (en) * 1967-03-23 1970-08-25 British Insulated Callenders Fully filled plaster sheathed telecommunication cables
US3775548A (en) * 1972-02-24 1973-11-27 Essex International Inc Filled telephone cable
FR2498000A1 (en) * 1981-01-14 1982-07-16 Pirelli Cavi Spa IMPROVED ELECTRICAL CABLE, IN PARTICULAR SUBMARINE CABLE FOR HIGH VOLTAGE CONTINUOUS CURRENT
US4774382A (en) * 1986-07-16 1988-09-27 Societa' Cavi Pirelli S.P.A. Direct current cable insulation with insulating composition including electronegative gas

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3525798A (en) * 1967-03-23 1970-08-25 British Insulated Callenders Fully filled plaster sheathed telecommunication cables
US3775548A (en) * 1972-02-24 1973-11-27 Essex International Inc Filled telephone cable
FR2498000A1 (en) * 1981-01-14 1982-07-16 Pirelli Cavi Spa IMPROVED ELECTRICAL CABLE, IN PARTICULAR SUBMARINE CABLE FOR HIGH VOLTAGE CONTINUOUS CURRENT
US4774382A (en) * 1986-07-16 1988-09-27 Societa' Cavi Pirelli S.P.A. Direct current cable insulation with insulating composition including electronegative gas

Also Published As

Publication number Publication date
CH385310A (en) 1964-12-15
ES223448A2 (en) 1956-03-01

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