Project Detail

Saco Valley 115 kV Substation Expansion

Center Conway, NH

Scope of Work

Cianbro performed all structural, electrical, and transmission line work required to complete the expansion of an existing 115 kV substation.

Project Details

  • Installed 115 kV yard structural steel
  • Installed all yard equipment, including 4 circuit breakers, 7 disconnect switches, 15 CCVT’s, 2 wave traps, and 3 lighting arrestors
  • Completed all conduit installations and equipment grounding
  • Installed 3 transmission line structures and the associated 795 ACSR conductors
  • Constructed a 115 kV bus system
  • Installed 12 lighting masts
  • Constructed and installed all flex taps
  • Installed the electrical outfitting of a 28 feet by 48 feet control house, including all of the lighting, cable tray, cabinet installations, AC/DC equipment, wiring, and terminations
  • Pulled and terminated power and control cables
  • Installed and spliced fiber optic cable
  • Demolished the existing control house equipment and performed the necessary removals and modifications

Lean, Innovative, and Unique Project Solutions

Cianbro performed this construction work in an energized substation.