There are different kinds of reactors with varying degrees of containment and redundant protective equipment. A PWR which runs enriched fuel has inherent risks that a PHWR doesn"t. Used PWR fuel will take off and go critical in the used fuel bay if surrounded by plain water. That is what happened in Japan when cooling was interrupted and the bay was refilled with water lacking sufficient boron neutron absorber. The Japanese used fuel bays also contained many years worth of used fuel that should have been in long term storage decades ago. Used PHWR fuel is inert when placed in ordinary water. The PHWR around here have everything behind one or two reinforced heavy grade concrete walls four feet thick each. One regular backup generator, six backup generators , two emergency backup generators and connections for fire truck pumpers. Plus all the battery backup pumps and two elevated cooling water storage tanks. Then there is the vacuum containment system to purge any leaks and filter system to scrub anything if the vacuum system fills up. Much different than Chernobyl , three mile or Japan designs. Our operators also have the training and option to think out of the box if an unique problem arises that is not covered in the procedures.
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Today's Featured Article - The Niagra View Mobile - Powered by a 1959 Ford Tractor - by Mark Massey. In 1959 the Niagara Frontier Transit Inc. of Buffalo, New York designed and built six Viewmobiles for the Niagara Frontier Sightseeing Inc. for use as a sightseeing ride at the Niagara Falls State Park, Niagara Falls, New York, powered by a 1959 Ford 611 Tractor.
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