Patent ID: 7611748
Filing Date: 2009-11-03
Classification: H01B,Y02A

Abstract:
1. A method for selecting components for a mixture to be injected into an interstitial void volume adjacent to a central stranded conductor of an electrical cable segment having the central conductor encased in a polymeric insulation jacket to enhance the dielectric properties of the cable segment, comprising: selecting an anticipated operating temperature profile for the cable segment to be used in selecting the components for the mixture to be injected into the interstitial void volume of the cable segment; selecting a minimum desired time period to be used in selecting the compounds for the mixture to be injected into the interstitial void volume of the cable segment during which the dielectric properties of the cable segment are to be enhanced by the mixture; selecting a first component for the mixture to provide the cable segment with a reliable life spanning a first time period for the selected operating temperature profile; selecting a second component for the mixture to provide the cable segment with a reliable life spanning a second time period at least in part extending beyond the first time period for the selected operating temperature profile; and selecting a third component for the mixture to provide the cable segment with a reliable life spanning a third time period at least in part extending beyond the second time period and beyond the minimum desired time period for the selected operating temperature profile, wherein said central stranded conductor is larger than: 4/0 (120 mm 4/0 (120 mm 250 kcm (225 mm 1000 kcm (500 mm