Accidents due to failure of UPS is responsibility of the utility and not covered by the policy.
seems the authorities agree. "The US National Transportation Safety Board in a preliminary report found an electrical failure at a PG&E facility caused a pressure surge in the pipeline "
I would think that insurance company will cover accidents, not gross negligence.I wouldn't be so quick to assume insurance will cover this blowout! Insurance company is there to make money, not giving it out from the goodness of their hearts.