ML20070F161
| ML20070F161 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 02/28/1991 |
| From: | Sieber J DUQUESNE LIGHT CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| TAC-77012, NUDOCS 9103080158 | |
| Download: ML20070F161 (2) | |
Text
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14uclear Regulatory Commission
'ttn:
Document Control Doch ushington, DC 20555
Subject:
Denver Velley Power Station, Unit No. 2 Docket No. 50-412, 1,1cenac No. NPP-73 Incorporation of Vennel Material Surveillanco Schedule Into UFSAR (TAC No. 77012)
Ref:
1)
Amendment No. 18 for racility Operating License llo. NFP-73 2)
WCAP-12406, Analysic of Capnule U from the Duquenne Light Company Deaver Valley Unit 2 Reactor Vessel Radiation Surveillance program In accordance with the requirements of Appendix !! of 10 CFR 50, Duquesne Light Company requesto approval of the attached DV-2 UFSAR Table 5.3-6, Reactor Vencel Material Irradiation Surveillance Schedule.
Table 5.3-6 han been revised to incorporate the following changes consintent with the schedule provided in Section 7
of Reference 2:
1.
The Removal Time in changed to decrease the withdrawal frequency.
2.
The actual Capsule Fluence resulting from the analysin of capsulo "U"
in incorporated.
Approval in reJulred prior to the next DV-2 refueling outage, currently scheduled for
- March, 1992, lloweve r,
if approval in obtained by April 1,
- 1991, this change can be incorporated into Revision 3 of the Unit 2 UrSAR.
Should you have any questions regarding this change, please contact Joe Spiegel at (412) 393-5205.
Sincerely, J
\\
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/>.
D.
Sieber
[/vice Precident Nuclear Group Attachment l
cci Mr. J. Deall, Sr. Resident inspector Mr. T.
T. Martin, NRC Region I Administrator Mr. A.
W.
DeAgazio, Project Manager Mr.
R.
Saunders (VEPCO) 9103080158 91022:3 PDR ADOCK 05000412 8dN P
PDR yf
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+
INI'S~2 UfTVJ1 TAIMI 5.3-6 (Pmpocad)
ECIOR VESSEL MATIRIAL IPRADIATION SLTNEIll1J1CE SOE12E Estimtod Vessel Imad I
af CapstQo Fluenco a
.Qapsule Ircation l' actor Time (n/cm' U
34.3 2.94 1.24 5.99 x 1010(D)
V 107 3.17 6
3.76 x 1019(c)
W 110 2.74 12 6.50 x 1019(d) 19 X
287 3.17 18 11,3 x 10 I
Y 290 2.74 Stardtrf Z
340 2.74 Stardby a)
Effective full power years frun plant startup. O ntges to this column will rcquire prior lac approval as specificd in Section II.B.3, Appendix H, of 10 Cnt 50.
b)
Actual fluenco l
c)
Approximte fluence at vescol 1/4 thickness at ord of life (32 EPIY) d)
Approximte fluence at vessel inner wall at ord of life (32 EFTY) l l
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