ML20064A557
| ML20064A557 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 09/11/1990 |
| From: | NRC |
| To: | |
| Shared Package | |
| ML20064A558 | List: |
| References | |
| NUDOCS 9009140098 | |
| Download: ML20064A557 (2) | |
Text
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'l 9
- POWER DISTRIBUTION LIMITS
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SURVEILLANCE REQUIREMENTS 4.2.2.1 The provisions of Specification 4.0.4 are not applicable.
~4.2.2.2 For RAOC operation, F (z) shall be evaluated to determine-if F .)
0 k
is within its limit by:
a.
Using the movable incore detectors to obtain a power distribution map at any THERMAL POWER greater than 5% of RATED THERMAL POWER.
b.'
Increasing the measured F (z) component of the power distribution q
map by 3% to account for manufacturing. tolerances and further increasing the value by 5% to account for measurement uncertainties.
Verify the requirements of Specification 3.2.2 are satisfied, c.
Satisfying the following relationship:
F(z)1FlTP x K (z) for P > 0.5 P x W (z)
'F(z)iFlTP x K (z) for P 1 0.5 W (z) x 0.5 where F (z)-is the measured F (z) increased by the allowances q
formanufacturingtolerancesandmeasurementuncertainty,FlTP is the F limit, K(t) is the normalized F (z) as a function of q
q core height, P is the relative THERMAL POWER, and W(z) is the cycle dependent function that accounts for power distribution TP transients encountered during normal operation.
F
,g(g) and W(z) are specified in the CORE OPERATING LIMITS REPORT as per Specification 6.9.1.11.
d.-
' Measuring F (2) according to the following schedule:
1.
Upon achieving equilibrium conditions after exceeding by 10%
or more of RATED THERMAL POWER, the THERMAL POWER at which F (z) wt.s last determined,
- or q
-2.
At least once per 31 Effective Full Power Days, whichever occurs first.
- During power escalation at the beginning of each cycle, power level may be increased until a power level for extended operation has been achievc1 and
- power distribution map obtained.
SUMER - UNIT 1-3/4 2-5 Amendment No. 88 9009140096 900911
{DR ADOCU 0500 95
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Mr. O. S. Bradham
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South Carolina Electric & Gas Company Virgil C. Summer Nuclear Station u
I cc:
Mr. R. ' V. Tanner Executive Vice President S.C. Public Service Autk fity.
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. P.- 0. Box 398)-
l Moncks Corr.er, South Carolina 29461-0398 J. B. : Knotts, Jr., Esq.
Bishop, Cook,' Purcell
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and Reynolds 1400 L Street, N.W.'
-Washington, D. C.
20005-3502-Resident' Inspector / Summer NPS
- c/o U.S.. Nuclear Regulatory Commission Route 1, Box 64
. Jenkinsville, South Carolina 29065 e
Regional Administrator Region II l
- U.S. Nuclear Regulatory Commission,
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101 Marietta Street, N.W., Suite 2900 1
_ Atlanta, Georgia 30323
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. Chairman, Ftirfield County Council
- P.-O.~ Box 293 Winnsboro, South Carolina 29180
. Mr. Heyward G. Shealy, Chief Bureau of Radiological Health
. South Carolina Department of Health and Environmental Control d
' 2600 Bull Street l
- Columbia, South Carolina 29201 South Carolina Electric & Gas Con.pany
- Mr. - A. R. Koon, Jr., Manager Nuclear. Licensing i
i Virgil C. Sumraer Nuclear Station P. O. Box 88
. Jenkinsville, South Carolina 29065
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