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Diablo Canyon Unit 2 Shut Down After Transformer Fire

Release Date: August 17, 2008
Contact: PG&E External Communications (415) 973-5930

tion of an Unusual Event at its Diablo Canyon Power Plant Unit 2 near San Luis Obispo, California. An Unusual Event is declared for an other-than-normal plant related condition that does not require any emergency action by the general public or any government authorities.

The Unusual Event was declared at 12:12 a.m. on August 17, because of a fire on a Unit 2 main transformer bank. Diablo Canyon firefighters extinguished the fire at 12:26 a.m. and the event was terminated at 2:31 a.m.

Unit 2 automatically shut down in response to the problem, as it is designed to do. The fire, which was in an area east of the turbine building, did not pose any threat to the plant's reactors and there were no personnel injuries.

An investigation to determine the cause of the fire is underway; at the same time Diablo Canyon personnel are mobilizing to make the necessary repairs to safely return the unit to full power.

There was no release of radioactive material to the environment from this event, as indicated by sensitive plant radiation monitors.

Unit 2 is shut down; Unit 1 continues to operate at 100 percent power.

Diablo Canyon Power Plant provides enough electricity for 1.6 million northern and central California homes and is located approximately 12 miles southwest of San Luis Obispo, CA, which is about 220 miles south of San Francisco and 200 miles north of Los Angeles.

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