The Salt River Project (SRP), a utility serving south Phoenix, Ariz., has a large population of aging feeder and URD cable. With numerous replacement projects, SRP saw its cost of line maintenance rising faster than the budget could handle. SRP decided to try Novinium® cable rejuvenation and has experienced a less than 1 percent failure rate on the treated cable.
The Intermountain Rural Electric Association (Intermountain REA) began to experience an increasing number of failures with cable laid in the in 1970s and ‘80s. By proactively rejuvenating entire neighborhoods before cables failed, the utility improved service levels to a 99.4 percent reliability rate and saved tens of millions of dollars.
600 Miles of Aging Cable Restored with Novinium Sustained Pressure Rejuvenation
With several projects to complete, Inland Power and Light decided to train crews on the Novinium processes. Cable rejuvenation helped address Inland Power and Light’s most challenging lines and has remained an important part of its asset management plan.
Estimated costs for the St. Charles Municipal Electric Utility cable replacement needs came in at about $6.6 million. St. Charles chose a solution comprised of 77 percent Novinium® cable rejuvenation and 28 percent cable replacement, saving $4.3 million, or 66 percent of the original project estimate.
CO2 v Helium Q: Novinium uses CO2 gases to push their fluids, and not helium. Why is that so? Is there a benefit of one over the other? Does the CO2 contribute to global warming? A: There are safety, environmental, and economic benefits of using CO2. Safety Benefit Effervescence limits the conductivity of fluid effluent…
Q: Methanol is both poisonous and explosive. What precautions will be taken by the circuit owner or Novinium if the cable, cable components, or injection equipment were to leak Cablecure 732 fluid and mix with water (i.e. flooded vault scenario)?
Q: Why is the flash point of a rejuvenation fluid relevant? The temperature of an electrical arc is 35,000°F. And everything is flammable from the utility standpoint, just as nothing is unbreakable from a lineman’s viewpoint.
Dielectric IV In Dielectric I, I provided the first part of a four-part answer to a query—the summary question: To what extent does the introduction of injection equipment into energized devices impact the safe operation of medium-voltage circuits? We learned that there are great differences in the extent of this risk depending upon the injection…
Dielectric III In Dielectric I, I provided the first part of a four-part answer to eight questions. The eight questions can be summarized: To what extent does the introduction of injection equipment into energized devices impact the safe operation of medium voltage circuits? We learned in the first installment that there are great differences in…