Answers interleaved below.
Bill Stanley TMI Reactor Engineering 717 948 8695
-----Original Message----- From: Mahgerefteh, Moussa:(GenCo-Nuc) Sent: 13 January 2010 13:59 To: Stanley, William S (TMI):(GenCo-Nuc) Subject: FW: [Pwrrm] Electronic Benchmarking - Fuel Handling Issues
Mr. Stanley,
Do you mind answering these questions.
Moussa
_____
From: pwrrm@retaqs.com [mailto:pwrrm@retaqs.com] On Behalf Of WILLETT, JOSEPH E Sent: Wednesday, January 13, 2010 9:29 AM To: pwrrm@retaqs.com Cc: BUSSEY, TIMOTHY J Subject: [Pwrrm] Electronic Benchmarking - Fuel Handling Issues
We apologize for the lengthy list, but we're trying get the year started off right and wrap-up from a late fall outage.
Fort Calhoun Station
Reactor Engineering is looking to benchmark a few items
1. Do your stations fuel handling machines require fall protection? [Stanley, William S (TMI)] Yes, while getting on or off the bridge. Don't need fall protection once actually on the bridge, unless there is a need to climb off the normal walking paths (to check brakes and cables, for example).
a. If yes, what measures are taken? Netting, harnesses, etc.[Stanley, William S (TMI)] Life vests or climbing harnesses may be used to get to the bridge. No nets
b. If using netting, where is it attached?[Stanley, William S (TMI)] N/A
c. If using fall protection, where are the tie-offs?[Stanley, William S (TMI)] Tie-off for the climbing harness is a cable along the walkway to the bridge. When climbing on the bridge, tie-off is to bridge structure.
2. What are you requirements for fuel movement in the Spent Fuel Pool?
d. Continuous communications with Control Room? If yes, SRO, RO., Other.[Stanley, William S (TMI)] Fuel movement in SFP requires initial approval by the Control Room, but NOT continuous communication during movement. During refueling (offload/reload), the SF bridge crew is in continuous communication w/ the FH SRO, who is stationed in the Reactor Building on the Main Fuel Handling Bridge, and the Control Room (RO) who is directing the move sequence.
e. Do you require oversight on the spent fuel handling machine (SRO, RO, Other)?[Stanley, William S (TMI)] For "isolated" SFP operations, SRO supervises movements.
f. Is your procedure Continuous Use, Information Use or Reference Use?[Stanley, William S (TMI)] Continuous use.
g. Do you utilize Vendors? If so, what additional oversight is required?[Stanley, William S (TMI)] During refueling outages, bridges are operated by mix of vendor and company personnel (company personnel are part of the Reactor Services group, who travel from plant to plant for outages). Company personnel provide oversight.
3. What type of underwater lights do you use for normal Spent Fuel Pool Lighting?
h. Style: drop light or mounted[Stanley, William S (TMI)] Mounted on the wall
i. Vendor:[Stanley, William S (TMI)] ROS
j. How many:[Stanley, William S (TMI)] Enough to see all fuel assemblies in the SFP
k. Spacing:[Stanley, William S (TMI)] about 25 feet apart
l. Ballasts: above water or submerged?[Stanley, William S (TMI)] Submerged
4. What type of underwater lights do you use for normal Reactor Cavity Lighting?
m. Style: drop light or mounted[Stanley, William S (TMI)] Temporary mounted lights above core, drop lights at the bottom of the core resting on the core plate.
n. Vendor:[Stanley, William S (TMI)] Unknown
o. How many:[Stanley, William S (TMI)] Two mounted above, one or two in the bottom
p. Spacing:[Stanley, William S (TMI)] Mounted lights above core are 180 deg apart
q. Ballasts: above water or submerged?[Stanley, William S (TMI)] submerged.
5. What type of underwater lights do you use for supplemental lighting? If Necessary.
r. If so what would require the additional lighting?
s. Style: drop light or mounted[Stanley, William S (TMI)] on underwater camera poles
t. Vendor:[Stanley, William S (TMI)] (camera)
u. How many:[Stanley, William S (TMI)] typically dual light
v. Spacing:
w. Ballasts: above water or submerged?[Stanley, William S (TMI)] submerged.
J. E. Willett
----------------------------------------------------
Joseph E. Willett, P.E.
Principal Reactor Engineer-Fuel
Nuclear Operations Division
E-mail: jwillett@oppd.com
Omaha Public Power District Phone: (402) 533-7213
Fort Calhoun Station Pager: (402) 561-3899
9610 Power Lane FAX: (402) 533-6747
Blair, NE 68008
Mail Station: FC-1-1 Plant
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