ML20069H174
| ML20069H174 | |
| Person / Time | |
|---|---|
| Site: | North Anna |
| Issue date: | 03/23/1983 |
| From: | Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | Clark R, Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| 622A, NUDOCS 8303280274 | |
| Download: ML20069H174 (2) | |
Text
.
m VINGINIA ELECTulC AND Pownu CourAxy Hrcnwoxn,VIHOINIA 20261 W.L.SrnwAar n2"l==..
March 23, 1983 fir. Harold R. Denton, Director Serial No. 622a Office of Nuclear Reactor Regulation PSE/KLB:du Attention: Mr. Robert A. Clark, Chief Docket Nos. : 50-338 Operating Reactors Branch No. 3 50-339 Division of Licensing License Nos.: NPF-4 U. S. Nuclear Regulatory Commission NPF-7 Washington, DC 20555 Gentlemen:
SUPPLEMENTAL INFORMATION TO AMENDMENT TO OPERATING LICENSES NPF-4 AND NPF-7 NORTH ANNA POWER STATION UNIT NOS.1 AND 2 In our letter, dated December 8,1982, Serial No. 622, Vepco requested a change to the existing F$. fractional power multiplier for the North Anna Power Station Unit Nos.' 1 and 2.
The attached Figure 1 provides additional infonaation in support of these proposed changes as requested informally by M. Chatterton of the Nuclear Regulatory Comission staff during a March 15, 1983, telephone conversation. Figure 1 shows the calculationofFNH versus power level for North Anna Unit 2 Cycle 3 compared to the current and proposed Technical Specification limits on F{H If you require additional information, please contact us.
Very truly yours,
(
W. L. Stewart Enclosure cc: Mr. James P. O'Reilly D6l Regional Administrator Region II B303280274 830323 PDR ADOCK 05000339 P
FIGURE 1 NORTH ANNA UNIT 2 CYCLE 3 CONSERVATIVE CALCULATION OF ENTHALPY RISE FACTOR WITH POWER LEVEL AND TECHNICAL SPECIFICATION LIMITS
.]
i-E5 2.1
==E KEY:
M
- calculated points with g
8% uncertainty included
=n-2.0
~o s of
/
1.9 Q
w ss
/
T s.
s.
9
+
y' h
g E
I a
s \\\\ x*
18 s.
e.~/
/ i S/.
A t
17
/
-/
/
/
s A-/
1.6 I"7 -
3 1
1.5 1.4 1.0 0.8 0.6 0.4 0.2 0.0 FRACTION OF RATED POWER
-