Tri-State Ammunition Plant Transmission Line Rebuild


Tri-State Ammunition Plant Transmission Line Rebuild

CEC worked with Tri-State Industrial Group (TSIG) and the McAlester Army Ammunition Plant (MCAAP) to relocate and upgrade an existing 2-mile, wood constructed, H-Frame 69kV transmission line. The new line used a single steel pole delta configuration with 1/0 Copper conductor and was built to 138kV. The design incorporated 15kV underbuild (1/0 Copper), fiber optic & CATV cables. This new line was constructed prior to the demolition of the existing line in order to minimize outage time due to the need to maintain power to the Ammunition Plant. This project utilized RUS Standard pole configuration and met the NESC code spacing requirements. Two custom self-supporting structures were designed to tie into an existing AEP line & to make a 55° angle in a congested corner.

The design work completed by CEC included:

  • Topographic survey
  • 3D PLS CADD project design
  • Coordination with MCAAP, Tri-State, AEP, steel pole manufacturer amd construction company
  • Bill of Material and structure drawings