Method for injecting strand-blocked cable
AssigneeNovinium, Inc.
InventorsWeston Philips Chapin Ford, Norman E. Keitges, James Steele
Life of this patent
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Abstract
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 strand-block mastic, the conductor being surrounded by a polymeric cable insulation. The method including pre-injection of compressed gas into the conductor strands of the cable at a pressure less than the elastic limit of the cable insulation, and injection of a rejuvenation fluid into the conductor strands of the cable at a pressure less than the elastic limit of the cable insulation.
Claims15
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 strand-block mastic, the conductor being surrounded by a polymeric cable insulation, comprising:
- a. pre-injection of compressed gas into the conductor strands of the cable at a pressure less than the elastic limit of the cable insulation;
- and
- b. injection of a rejuvenation fluid into the conductor strands of the cable at a pressure less than the elastic limit of the cable insulation.
Dependencies are inferred from the claim text.