ML20244B699
| ML20244B699 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 06/09/1989 |
| From: | Withers B WOLF CREEK NUCLEAR OPERATING CORP. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| WM-89-0169, WM-89-169, NUDOCS 8906130221 | |
| Download: ML20244B699 (2) | |
Text
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.L W41.F CREEK NUCLEAR OPERATING CORPORATION sert D. withers
' June 9,.1989 President and Chief Executive officer WM 89-0169 U..S. Nuclear. Regulatory Commission ATTN: Document Control-Desk Mail Station F1-137 Washington D. C. 20555
Subject:
Docket No. 50-482: Revision of Inservice Testing Program Relief Request-Gentlemen:
The purpose of this letter is to provide a revision -.to Inservice Testing Program Relief Request No.
PR-13 as. requested in a telecon on May 17, 1989 between Mr.
E.
- Sullivan, NRC and Mr.
S.
- Wideman,
-Wolf Creek Nuclear Operating Corporation (WCNOC). This revised relief request was requested to support the staff review of a pending relief request,. associated' with the-Emergency Fuel Oil Transfer Pumps.
Additionally, the staff requested the margins that would be available when utilizing an Acceptance Criteria of i 1.5'psig from the reference value. The following table provides the specific testing conditions, since the installation of flow instrumentation, during the surveillance testing of these pumps.
d/p.
Code Proposed Flow Head Reference Min / Max-Min / Max Date (apm)
(psid)
Value (psid) limits limits PJE01A 2-20-89 43.6 14.87 14.2 12.8/14.6 12.7/15.7 5-31-89 43.8 13.83 14.2 12.8/14.6 12.7/15.7 j
PJE01B 2-17-89 41.3 12.05 13.2 11.9/13.6. 11'.7/14.7 4-20-89 41.2 12.27 13.2 11.9/13.6 11.7/14.7 If you have any questions concerning this response, please contact me or Mr. O. L. Maynard of my staff.
I Very truly yours, Af J
Bart D. Withers President and Chief Executive Officer BDW/aem l
Attachment
)
[O 7' cc:
B. L. Bartlett (NRC), w/a D.'V.. Pickett (NRC), w/a E. J. Holler (NRC)', w/a E. J. Sullivan (NRC), w/a I
R.D. Martin (NRC{,w[a i
- U"'
'8 8906130221 890609 PDR ADOCK 05000482 An Equal Opportunity Employer MMfCNET P
)
e aAttachmentcto WM'89-0169--
Page 1 of 1 RELIEF REQUEST NO. PR-13 i
PUMPS: PJE01A.and B Emergency Fuel Oil Transfer Pumps l
l' CLASS: ISI Class 3 l
TEST REQUIREMENTS -
1 i
The Emergency Fuel, Oil Transfer pumps are small submersible pumps.
Their; nominal differential pressure is only-12 to-- 13.psid.-
This means the maximum Sallowable high range is less than 0.4 psi above the reference value.-
By using a-more. accurate:' discharge pressure gauge the maximum instrument error is limited to 0.09 psi.
The data scatter over the last two' years of. surveillance-testing.
has been greater than.8% (1.0 psi). The variation in data appearsito be the result. of.short run. time of the pumps (approximately 2 minutes) during the surveillance test and the configuration of.the system piping.
The variation in data does not appear to be..the-result of instrumentation inaccuracies.
Additionally, the capability exists to cross-connect the~two trains-of the Emergency' Fuel Oil System'(see figure 9.5.4-l'of'the USAR).
ALTERNATE TESTING:
The Emergency Fuel Oil Transfer pumps will be tested. quarterly and use as an Acceptance Criteria-of i 1.5 psig from1the reference value.
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