Entergy’s Palisades nuclear plant near South Haven is venting radioactive steam into the environment as part of an unplanned shutdown triggered by an electrical accident. This shutdown, which began Sunday evening, came just five days after the plant restarted from a shutdown that was caused by a leak in the plant’s cooling system. Nuclear Regulatory Commission spokeswoman Prema Chandrithal said that the current shutdown happened because an object slipped during work on a circuit breaker and caused an arc that took out power for one of two DC electrical systems that power safety valves and other devices. According to a notice filed with the Nuclear Regulatory Commission, the plant is stable and “controlling temperature using Atmospheric Dump Valves.” “The steam that would normally go to the generators, that steam is now going into the environment … through the steam stack,” said Chandrithal. “This would have very low levels of tritium.” Tritium is a radioactive isotope of hydrogen. The plant is monitoring the levels and will report them to the NRC, Chandrithal said. Palisades’ 798-megawatt reactor began operation in 1971, and through a license extension granted by NRC, may operate until 2031.
The Palisades Nuclear Plant in southwestern Michigan has been shut down due to a loss of water in a cooling system. WWMT-TV reports the facility in Covert Township was shut down just before 3 p.m. Friday. The lowest of four emergency classification levels was declared. The classification means plant workers were notified and were resolving the problem. Officials say the shutdown poses no risk to the public and that no radioactive materials were released. A U.S. Nuclear Regulatory Commission inspection was held at the Van Buren County plant last month after a water pump component failed. The plant is owned by New Orleans-based Entergy Corp.
Originally posted by FloatingGhost
Finding it odd that there's 2 different stories as to why it shut down. Electrical problem caused by accident or cooling system failure. Or did an electrical problem caused by accident short the cooling system?
Originally posted by LilFox
I used to work in the safety industry some time ago doing IT work, they had videos and things which if you were to believe them, these kinds of accident's are common, a screwdriver placed on the top of the fusebox, falls down and shorts the rails out or somesuch. (Usually lethal to those working on the equipment)
Surely they can bring tanks in and divert the venting, shut the valves manually, pump it into a tanker.
Who knows, seems their media relations or someone is lying over there Seems unlikely to have 2 cooling related accidents so close together. The system should have been fully inspected after the first.edit on 26/9/2011 by LilFox because: adding
Originally posted by mikellmikell
they are not leaking any radioactivity.
Nuclear Regulatory Commission spokeswoman Prema Chandrithal said...“The steam that would normally go to the generators, that steam is now going into the environment … through the steam stack,” said Chandrithal. “This would have very low levels of tritium.”