METHOD FOR INJECTING STRAND-BLOCKED CABLE

A method for rejuvenating a strand-blocked cable having a conductor comprised of a plurality of conductor strands with interstitial volume therebetween blocked by a PIB based mastic, the conductor being surrounded by a polymeric cable insulation. The method comprising installing injection adapters t...

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Bibliographic Details
Main Authors LAUX, KEVIN, STEELE, JAMES, CHATTERTON, WAYNE J, FORD, WESTON PHILIPS CHAPIN, LAURIE, NATHANAEL, BUSBY, DAVID C
Format Patent
LanguageEnglish
French
Published 24.11.2022
Subjects
BASIC ELECTRIC ELEMENTS
CABLES
CONDUCTORS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINEDOPTICAL AND ELECTRIC CABLES OR LINES
INSULATORS
SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
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Summary:A method for rejuvenating a strand-blocked cable having a conductor comprised of a plurality of conductor strands with interstitial volume therebetween blocked by a PIB based mastic, the conductor being surrounded by a polymeric cable insulation. The method comprising installing injection adapters that seal the cable ends of the cable and are usable to inject fluid into the interstitial volume between the conductor strands of the cable; elastically expanding the polymeric cable insulation through the application of pressure to the interstitial volume between the conductor strands of the cable; and injecting at least one injection fluid in which the PIB based mastic is mostly insoluble into the interstitial volume between the conductor strands of the cable. Un procédé de régénération d'un câble bloqué à torons dont un conducteur est constitué d'une pluralité de torons conducteurs séparés par un volume interstitiel, bloqués par un mastic à base de PIB, le conducteur étant entouré d'une isolation de câble à base de polymères. Le procédé consiste à installer des adaptateurs d'injection scellant les extrémités de câble du câble et servant à injecter un fluide dans le volume interstitiel entre les torons conducteurs du câble ; à étendre élastiquement l'isolation de câble à base de polymères par l'application de pression au volume interstitiel entre les torons conducteurs du câble ; et à injecter dans le volume interstitiel, entre les torons conducteurs du câble, au moins un fluide d'injection dans lequel le mastic à base de PIB est principalement soluble.
Bibliography:Application Number: CA20213218659