Super Bowl blackout was caused by electrical relay
NEW ORLEANS -- The company that supplied electricity to the Super Bowl says the blackout that halted the big game was caused by a device it installed specially to prevent a power failure.
But the utility stopped short of taking all the blame and said Friday that it was looking into whether the electrical relay at fault had a design flaw or a manufacturing defect.
The relay had been installed as part of a project begun in 2011 to upgrade the electrical system serving the Superdome ...
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