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Advances in Chemical Rejuvenation: Extending Medium Voltage Cable Life 40 Years

June 24, 2007

Jicable 2007
Versailles, FR
by Glen Bertini and Gary Vincent
June 24, 2007

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 mechanisms of cable failure, which are addressed by the newest injection technology, are briefly reviewed. The focus of the paper is on the chemistry of oligomerization, which determines how long a treatment persists in the cable. Three commercially available chemistry choices are compared.

  • Side-by-side comparison of all commercially available injection technologies
  • Advances in condensation catalysts

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