GB627470A - Improvements in or relating to electric cables - Google Patents

Improvements in or relating to electric cables

Info

Publication number
GB627470A
GB627470A GB25690/47A GB2569047A GB627470A GB 627470 A GB627470 A GB 627470A GB 25690/47 A GB25690/47 A GB 25690/47A GB 2569047 A GB2569047 A GB 2569047A GB 627470 A GB627470 A GB 627470A
Authority
GB
United Kingdom
Prior art keywords
gas
core
compound
dissolved
impregnated
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
GB25690/47A
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.)
Pirelli and C SpA
Original Assignee
Pirelli SpA
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 Pirelli SpA filed Critical Pirelli SpA
Publication of GB627470A publication Critical patent/GB627470A/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

Landscapes

  • Organic Insulating Materials (AREA)

Abstract

627,470. Cables. PIRELLI SOC. PER AZIONI. Sept. 22, 1947, No. 25690. Convention date, March 10, 1944. [Class 36] An impregnated cable having a gas dissolved in the impregnating compound is constructed with one or more longitudinal channels into which the gas is introduced and which are eliminated when the gas has dissolved in the compound. The insulated core is impregnated in the usual manner and the lead sheath applied so that there is a clearance between the core and sheath. The air is evacuated and a suitable gas such as carbon dioxide, carbon monoxide or acetylene allowed to enter under a pressure of a few atmospheres. After the insulating compound has become saturated with the gas, the ends of the cable are sealed and the lead sheath pressed on to the core.
GB25690/47A 1944-03-10 1947-09-22 Improvements in or relating to electric cables Expired GB627470A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT627470X 1944-03-10

Publications (1)

Publication Number Publication Date
GB627470A true GB627470A (en) 1949-08-09

Family

ID=11293571

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25690/47A Expired GB627470A (en) 1944-03-10 1947-09-22 Improvements in or relating to electric cables

Country Status (1)

Country Link
GB (1) GB627470A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4774382A (en) * 1986-07-16 1988-09-27 Societa' Cavi Pirelli S.P.A. Direct current cable insulation with insulating composition including electronegative gas
AU598562B2 (en) * 1986-07-16 1990-06-28 Societa' Cavi Pirelli S.P.A. Direct current electric cables

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