An electrical device that had been installed expressly to prevent a power outage failed, causing the blackout, the stadium's power company said Friday as it took the blame for the outage that delayed the game more than a half-hour. View full size The Superdome in New Orleans during the power outage that delayed play in the second half of the Super Bowl, which was won by the Baltimore Ravens, 34-31, over the San Francisco 49ers. Associated Press   NEW ... Read More