345-kV

BOLD’s initial 345-kV transmission design utilized a 3-954 ACSR Cardinal conductor bundle on tubular steel poles and a smoothly curved crossarm.

Bold 345-kV

BOLD’s initial design was a double-circuit 345-kV 3-bundle tubular steel monopole structure. BOLD’s ability to deliver more transmission capability over distance, provide aesthetic advantages and fit more easily into tight right-of-ways led AEP to introduce BOLD  for the first time in an existing 138-kV corridor with a tower-for-tower line rebuild project.  With the need to maintain a 138-kV circuit while adding a new, high-capacity 345-kV circuit in the same corridor, BOLD satisfied the system reliability needs while receiving positive feedback from the community.

345kV-min

The engineering team at AEP saw additional opportunities after the initial design and have expanded the BOLD 345-kV product suite to include lattice towers, single-circuit designs and multiple conductor bundle options.