We use to use them. The dose pre-alarm setting was the same as the alarm, but
the rate pre-alarm was 80% of the alarm. We stopped using them because WANO
thought we were hiding rate alarms by using the pre-alarms.
Now for the editorial portion.
Using your reasoning on the pre-alarms, have you
Comanche Peak is the same as Ontario Power. We want people to aware of their
exposure and be checking on it.
Michael Macho
Radiation Protection Staff
michael.ma...@luminant.com
SAFETY is first
QUALITY
SCHEDULE
Luminant Power
Comanche Peak Nuclear Power Plant
6322 North FM 56 or PO Box 1002
North Anna currently does not use the pre-alarm alerts for our DMC-2000s. We
were also concerned for the "pre-alarms" being mistaken for an actual dose or
dose rate alarm.
Barbara J. Thompson
North Anna Power Station
1022 Haley Drive
Mineral, Va 23117
Superintendent Health Physics
At Ontario Power Generation we do not use pre-alarms. We want our staff
focussed on monitoring their epd, and not relying on a chirp that could be
mistaken for the actual EPD dose alarm.
Does your site make use of them?
Why or why not?
Ephraim Schwartz
