Cable Rejuvenation Mechanisms

Insulated Conductors Committee (ICC)
Subcommittee A
by Glen J. Bertini and Gary A. Vincent
March 14, 2006

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  • Why solid dielectric cables fail

  • How silicone injection stops future failures

Abstract: Recent advances in cable life extension technology have demonstrated a greater than three-fold life improvement over earlier generations. While simply supplying an adequate amount of fluid explains a portion of these performance gains, this paper addresses several other important factors required to understand long-term post injection reliability. The chemistry of oligomerization, which determines how long a treatment persists in the cable, and the mechanisms of cable failure, which are addressed by the injection technology are described.