GB698055A - Improvements in the manufacture of electric cables - Google Patents

Improvements in the manufacture of electric cables

Info

Publication number
GB698055A
GB698055A GB6778/51A GB677851A GB698055A GB 698055 A GB698055 A GB 698055A GB 6778/51 A GB6778/51 A GB 6778/51A GB 677851 A GB677851 A GB 677851A GB 698055 A GB698055 A GB 698055A
Authority
GB
United Kingdom
Prior art keywords
wax
penetration values
weight
cables
impregnant
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
GB6778/51A
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 GB6778/51A priority Critical patent/GB698055A/en
Priority to ES0202474A priority patent/ES202474A1/en
Publication of GB698055A publication Critical patent/GB698055A/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
    • H01B9/00—Power cables
    • H01B9/06—Gas-pressure cables; Oil-pressure cables; Cables for use in conduits under fluid pressure
    • H01B9/0611—Oil-pressure cables
    • 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
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • 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
    • H01B7/02—Disposition of insulation
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

Abstract

698,055. Cables. BRITISH INSULATED CALLENDER'S CABLES, Ltd. March 20, 1952 [March 21, 1951], No. 6778/51. Addition to 581,830. Class 36. [Also in Group VIII] In an insulated cable having impregnated fibrous dielectric, the impregnant within the fibrous material and in the interstices thereof consisting of micro-crystalline petroleum wax as disclosed in the parent Specification, the wax has a melting point of about 88‹ C. and needle penetration values of about 5 at 25‹ C. and about 35 at 70‹ C. The impregnant may consist wholly of this wax, or of a blend of this wax with one or more micro-crystalline petroleum waxes having higher penetration values at high temperatures, the blended wax having a melting point between 85‹ and 90‹ C. and needle penetration values varying from about 5 or 6 at 25‹ C. to between 35 and 50 at 70‹ C. Alternatively, not less than about 48 per cent by weight of the first-mentioned wax or not less than about 50 per cent by weight of the blended wax may be compounded with cable impregnating mineral oil or a plasticizer such as polyisobutene having an average molecular weight of 20,000 to 100,000 and/or rosin, or a mixture of such oil with one or both of the plasticizers.
GB6778/51A 1951-03-21 1951-03-21 Improvements in the manufacture of electric cables Expired GB698055A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB6778/51A GB698055A (en) 1951-03-21 1951-03-21 Improvements in the manufacture of electric cables
ES0202474A ES202474A1 (en) 1951-03-21 1952-03-13 Improvements in the manufacture of electric cables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6778/51A GB698055A (en) 1951-03-21 1951-03-21 Improvements in the manufacture of electric cables

Publications (1)

Publication Number Publication Date
GB698055A true GB698055A (en) 1953-10-07

Family

ID=9820565

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6778/51A Expired GB698055A (en) 1951-03-21 1951-03-21 Improvements in the manufacture of electric cables

Country Status (2)

Country Link
ES (1) ES202474A1 (en)
GB (1) GB698055A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3683104A (en) * 1971-01-07 1972-08-08 Dow Chemical Co Heat resistant cable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3683104A (en) * 1971-01-07 1972-08-08 Dow Chemical Co Heat resistant cable

Also Published As

Publication number Publication date
ES202474A1 (en) 1952-04-16

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