Hi Mark Just a quick note to thank you for your response. Free air cables is the terminology for cabling that is just strung in the plant and not in conduit.
Wayne
"Helton, Mark A"
<mark.hel...@duke
-energy.com> To
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Subject
07/26/2010 02:16 RE: Powernet: ALARA Benchmarking
PM Questions
Please respond to
[email protected]
See Duke Energy Catawba Nuclear Station responses in red below…
From: [email protected] [mailto:[email protected]] On Behalf Of
Wayne L Ruttenberg
Sent: Monday, July 26, 2010 13:50
To: [email protected]
Subject: Powernet: ALARA Benchmarking Questions
Good Afternoon Everyone
Fermi-2 would like assistance with the following questions:
What is your routine survey frequency for the general areas of the
following
Turbine Building – semiannual
Reactor Building – lower containment only during outages…upper containment
quarterly
Auxiliary Building – RCA exits are daily…most other rooms/areas are monthly
Are ARMs used to supplement the survey frequency? We have over 300
remotely monitored ED’s throughout our Aux Bldg that we monitor
continuously. However, to minimize dose they are not calibrated (run to
failure) so we do not take credit for them to further extend the frequency
of our routine surveys.
What is the primary driver for the use of remote monitoring ( Procedurally
and /or the RWP, Dose for the job or to reduce access to HRA or LHRA
areas)? Dose reduction/minimization.
What equipment is available to perform remote monitoring (Crash carts with
video communications, telemetry or centralized monitoring station)? Crash
carts with telemetry and video for the majority of the Aux Bldg during
on-line periods…Central monitoring for both spent fuel buildings (ISFSI
activities) at all times…central monitoring with telemetry, video, and
audio communications in reactor bldg during outages.
Is there an issue with "Free Air" cables at your facility ?
What are your primary ALARA metrics? On-Line Exposure (by unit and either
Routine or Non-Routine)…outage exposure (by unit)…fleet cumulative
exposure…high radiation area occurrences…and unplanned exposure
occurrences.
Thank you for your assistance
Wayne Ruttenberg
ALARA @ Fermi-2
(734) 586-5306
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