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Yellowtail Switchyard DCS Phase I priniciple components of work include demolishing of existing building, providing a new pre-fabricated building, complying with all applicable safety requirements contained in WAPA's Construction Standard 1 and OSHA Standards, replacing five (5) 230-kV power circuit breakers including their concrete foundations, rotating six (6) 115-kV power circuit breakers 180 degrees, replacing four (4) 115-kV power circuit breaker concrete foundations, removing six (6) pothead steel structures, removing two (2) disconnect switches (steel only), removing eighteen (18) bus poles and their foundations, removing two (2) lighting units and their foundations, removing two (2) disconnect switches and their foundations, removing one (1) 230-kV power circuit breaker and its foundation, removing two (2) single platforms, removing one (1) double platform, installing one (1) bus pole and its foundation, replacing twelve (12) 230-kV disconnecting switches, replacing two (2) 230-kV disconnecting switches with ground blades, installing one (1) 230-kV CCVT and its foundation, installing a prefabricated control building and associated equipment, material and foundations.
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