Schultz - Raver Number 3 and 4 500-kilovolt (kV) Transmission Lines Spacer ReplacementCX(s) Applied: B1.3Date: 08/25/2010Location(s): King County, WashingtonOffice(s): Bonneville Power Administration
Office of NEPA Policy and Compliance
August 25, 2010
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CX(s) Applied: B1.3
Date: 08/25/2010
Location(s): King County, Washington
Office(s): Bonneville Power Administration
Bonneville Power Administration (BPA) has a need to replace old and worn spacer-dampers on approximately 78 miles of the Schultz - Raver Number 3 and 4 500-kilovolt (kV) transmission lines. Manned aerial carts that ride on the transmission line conductors would be used to change out the spacers. The carts would be placed on the transmission line by helicopter prior to line crews accessing the carts to perform the work. New spacers would be delivered by helicopter to the carts. Once the old spacers are changed, they would be picked up by ground vehicles and transported to a recycling center. The majority of the work would be performed above ground with minimal support from vehicles and crews on the ground. All vehicles would remain on existing access roads. All work would be conducted in accordance with National Electrical Safety Code and BPA standards. The work is necessary to provide system reliability.