ML17292A797
| ML17292A797 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 04/10/1997 |
| From: | Colburn T NRC (Affiliation Not Assigned) |
| To: | Parrish J WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| References | |
| TAC-M98214, NUDOCS 9704160242 | |
| Download: ML17292A797 (5) | |
Text
~S REq>
(4
+4 PO 0
Cy
+~
~O
+a**+
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 2055~001 April 10, i997 g->'r.
J.
V. Parrish Chief Executive Officer Washington Public Powei Supply System P.O.
Box 968 (Mail Drop 1023)
- Richland, Washington 99352-,0968
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION FOR THE WASHINGTON PUBLIC POWER SUPPLY SYSTEM (WPPSS)
NUCLEAR PROJECT NO.
2 (WNP-2)
(TAC NO.
M98214),
Dear Mr. Parrish:
The staff has reviewed your March 22, 1997, application for an exigent technical specification amendment pertaining to the response time testing surveillance requirements for the reactor protection system instrumentation, primary containment isolation actuation instrumentation, and emergency core cooling system actuation instrumentation, and the supplemental information contained in letters dated April 2, 3, and 9, 1997.
Based on the review, the staff has determined that the following additional information is needed to complete the review:
On page 1 of the April 9, 1997 letter, WNP-2 states that the determinations of sensor response time were based on engineering
- judgment, supported by published vendor information, WNP-2 design information, WNP-2 operational
- data, or available industry data.
Provide the engineering judgment and information/data used to determine the sensor response times.
2.
3.
4 ~
Provide the specific design information that is discussed on page 2,
paragraph 4, of the April 9, 1997 letter.
Provide the statistical calculations performed, the raw data used in the statistical calculations, and the results of the calculations.
Provide the values used in each response time testing calculation for Tx, and specify if the value was calculated or if the manufacturer's data was used.
5.
On page 3, paragraph 2 of the April 9; 1997 letter, WNP-2 stated:
"This breakdown was not available for the total response time of 1.0 seconds specified for the PCI function.
An acceptance criteria of 0.05 seconds for Tx was selected, consistent with the acceptance criteri'a for the other logic subject to response time measurements."
Explain what "the other logic" was, why it is considered sufficiently similar, and why this method is acceptable.
9704i60242 9704i0 CF ADOCK 05000397 PDR
Mr. J.
V. Parrish April 10, 1997 6,-;
L'xplain how the assumed response times will be used in each instance where response time testing measurement is no longer required.
7.
Explain how WNP-2 will know to either redo the calculations or resume response time testing if, in the future, the instrument is replaced with one not listed in 'Table 1 of the staff safety evaluation report on NEDO-32291.
8.
Provide a
FMEA for Barksdale B2T, Barton 288A, and Static-0-Ring 29-N6-B45 and 103AS-BB203.
(The FMEA should be similar to those performed in EPRI NP-7243).
9.
Revise the proposed technical specification surveillance requirements (SR) as follows:
a.
SR 3.3.1.1.15, Note 2
The sensor response times for functions' and 4 need not be measured and may be assumed to be the design sensor response time.
b.
SR 3.3.6.1.7, Note The sensor response time for functions l.a, 1.b, and 1.c need not be measured and may be assumed to be the design sensor response time.
In an effort to support your request for approval of the amendment by April 18,
- 1997, we request that you respond to this request for additional information in writing by April 13, 1997.
Failure to provide this information by April 13, 1997 may result in a delay i'n approval of the amendment request beyond the requested April 18, 1997 approval date.
If you have any questions,,
please contact me at (301) 415-1362.
Original Signed By Kristine Thomas for Timothy G. Colburn, Senior Project Manager Project Directorate IV-2
. Division 'of Reactor Projects - III/IV Office of Nuclear Reactor Regulation Docket No. 50-397 cc:
See next page DOCUMENT NAME: WNP98214.RAI DISTRIBUTION
ooc~ket File PUBLIC PDIV-2 Reading JRoe EAdensam
- KPerkins, RIV/WCFO
- PGwynn, RIV OFC PDIV-2 PDIV-2 1 J~i TCol urn m 4/ 997 NAME.
KT mas DATE 4/(L)/97 OFFICIAL RECORD COPY PDIV-2 EPPeyt pe 4/lo/97 HI B/Bg JW mi el 4/Ia 97
P
't
'I IE
Mr. J.
V. Parrish April 10, 1997 CC:
Mr. Greg 0. Smith (Hail Drop 927M)
WNP-2 Plant General Manager Washington Public Power Supply System P. 0.
Box 968
- Richland, Washington
.99352-0968
.Hr. Al E. Mouncer (Mail Drop 396)
Chief Counsel Washington Public Power Supply System P.O.
Box 968
- Richland, Washington 99352-0968 Hr. Frederick S. Adair, Chairman Energy Facility Site Evaluation Council P. 0.
Box 43172 Olympia, Washington 98504-3172 Mr. David A. Swank (Mail Drop PE20)
- Manager, Regulatory Affairs Washington Public Power Supply System P.O.
Box 968
- Richland, Washington 99352-0968 Mr.-Paul R.
Bemis (Mail Drop PE20)
Vice President, Nuclear Operations Washington Public Power Supply System P.O.
Box 968
- Richland, Washington 99352 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission Harris Tower E Pavilion 611 Ryan Plaza Drive, Suite 400 Arlington, Texas 76011-8064 Chairman Benton County Board of Commissioners P.O.
Box 69
- Prosser, Washington 99350-0190 Mr. R.
C. Barr, Senior Resident Inspector U.S. Nuclear Regulatory Commission P.O.
Box 69
- Richland, Washington 99352-0968 M. H. Philips, Jr.,
Esq.
Winston 5 Strawn 1400 L Street, N.W.
Washington, DC 20005-3502 Mr. Rodney L. Webring (Mail Drop PE08)
Vice President, Operations Support/PIO Washington Public Power Supply System P. 0.
Box 968
- Richland, Washington 99352 Hs. Lourdes C. Fernandez (Mail Drop PE20)
- Manager, Licensing Washington Public Power Supply System P. 0.
Box 968
- Richland, Washington 99352
4'W i
lVA>>