ML20215M323
| ML20215M323 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 06/22/1987 |
| From: | Zimmerman S CAROLINA POWER & LIGHT CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| 87TSB01, 87TSB1, NLS-87-130, NUDOCS 8706260351 | |
| Download: ML20215M323 (3) | |
Text
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CD&L Carolina Power & Light Company 1
JUN 2 21987 SERIAL: NLS-87-130 10CFR50.90 87TSB01 1
United States Nuclear Regulatory Commission 1
ATTENTION: Document Control Desk j
Washington, DC 20555 BRUNSWICK STEAM ELECTRIC PLANT, UNIT NOS.1 AND 2 DOCKET NOS. 50-325 & 50-324/ LICENSE NOS. DPR-71 & DPR-62 ROSEMOUNT ANALOG TRIP UNIT SYSTEM TECHNICAL SPECIFICATION SUBMITTAL OF MISSING PAGE Gentlemen:
On May 1,1987, Carolina Power & Light Company submitted a Technical Specification amendment request concerning the Rosemount Analog Trip Unit Systems at the Brunswick Steam Electric Plant, Unit Nos. I and 2. A page was inadvertently omitted from the independent review performed by Energy Incorporated entitled " Review of the Rosemount Analog Trip Unit Justification for Test Interval Frequency Change" which was included in Enclosure 4. Page B 2.14 of that review is hereby submitted.
Please refer any questions regarding this submittal to Mr. Stephen D. Floyd at (919) 836-6901.
Yours very truly, V
///
. R. Zim erman ager Nuclear Licensing Section BAT / mss Enclosure cc:
Mr. Dayne H. Brown Dr. J. Nelson Grace (NRC-RII)
Mr. W. H. Rutand (NRC-BNP)
Mr. E. Sylvester (NRC) 8706260351Ohb24-PDR ADOCK O PDR P
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4 411 fayetteville Street
- P. O. Box 1551
- Raleigh, N. C. 27602 g20ppgrg;Qr%ipe 'wWAi&TS2070!EE3%!!EUl3ElECCE$3 b
ENCLOSURE 1 TO SERIAL: NLS-87-130 MISSING PAGE FROM THE MAY 1,1987 SUBMITTAL ROSEMOUNT ANALOG TRIP UNIT SYSTEMS j
(5223 BAT / mss)
1, ELEVENTH ANNUAL NATIONAL ENERGY DIVISION CONFERENCE
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APPENDIX A This Appendix provides the equations for obtaining classical confidence levels for set intervals for each of the parameters discussed above. Only upper interval forms are presented in the interest of brevity.
l Bernoulli Parameter Estimates _
The classical. confidence level for an upper interval estimate of the Bernoulli parameter is given by the*following equation:
E I'E)
(S^
Cu(p;D,S) = 1 -
dl(S )I d=0 a
, Note that when D=S, then an upper interval cannot be established (1,s.,
the confidence is sero for all upper intervals).
Bernoulli Defectives Estimates The classical confidence level for an upper interval estimate of the number of defects present in a lot (based on the Bernoulli process) is given by the following equation:
D St Bl(L-B)!
(L-S)!
Cu(B;D,S.L) = 1 - I (S
dl(S-d)I Li (B-d) l (L-S-B+d) !
_O Note that when D=S, then the confidence is zero for all upper intervals.
Also,' when D=0, the upper interval estimate of B.O is formed with a confidence of zero.
Poisson Parameter Estimates The classical confidence level for an upper interval estimate of the Poisson parameter is given by the following equation:
Cu(1;D,5) = 1 -
(1S)d,- M (EQ A-3) d=0 DI Poisson Deficiencies Estimates The classical confidence level for an upper interval estimate. of the
-number of deficiencies present in a lot (based on the Poisson process) is I
given by the following equation:
)
I i
li
' f!
L B 2.'14 J