Circuit Breaker Maintenance

The maintenance of HV and LV Circuit Breakers includes:

  • Rack out and extraction.
  • Visual inspection.
  • Cleaning and lubrication of the mechanical parts.
  • Cleaning of the sulfated parts.
  • Dielectric Withstand Test or Insulation Resistance Test.
  • Contact Resistance Test.
  • Operation Time Test.
  • Secondary Injection Test, if applicable.
  • Open and Close Test.

Address: 260 Sussex Ave. W, Terino WA 98589


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