ML17334A696
| ML17334A696 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 03/26/1998 |
| From: | Fitzpatrick E INDIANA MICHIGAN POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| AEP:NRC:0969BL, AEP:NRC:969BL, NUDOCS 9804020323 | |
| Download: ML17334A696 (7) | |
Text
CATEGORY 1 REGULA'LOP INFORMATION D1STRIBUTIOLYSTEM (RIDE)
H L
ACCESSION NBR:9804020323 DOC.DATE: 98/03/26 NOTARIZED: NO FACIL:50-315 Donald C.
Cook Nuclear Power Plant, Unit 1, Indiana M
50-3~16 Donald C.
Cook Nuclear Power Plant, Unit 2, Indiana M
AUTH.NAME AUTHOR AFFILIATION FITZPATRICK,E.
RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)
DOCKET ¹ 05000315 05000316
SUBJECT:
Forwards revised relief request 2 for third ten-year pump in-service test program,per 980113 telcon w/NRC re 970819 relief request. Encl request reflects agreed upon testing method discussed during telcon.
DISTRIBUTION CODE:
A047D COPIES RECEIVED:LTR ENCL SIZE:
TITLE: OR Submittal: Inservice/Testing/Relief from ASME ode - GL-8 -04 NOTES:
E RECIPIENT ID CODE/NAME PD3-3 LA STANG, J INTERNAL: AEOD/SPD/RAB NRR/DE/EMEB OGC/HDS2 RES/DET/EMMEB COPIES LTTR ENCL 1
1 1
1 1
1 1
1 1
0 1
1 RECIPIENT ID CODE/NAME PD3-3 PD COPIES LTTR ENCL 1
1 LE CENTER 0
1 1
NUDO 8"-XESTRK 1
1 RES/DET/EIB 1
1 0
R EXTERNAL: LITCO ANDERSON NRC PDR 1
1 1
1 NOAC 1
1 D
0 E
N NOTE TO ALL MRIDSM RECIPIENTS:
PLEASE HELP US TO REDUCE WASTE. TO,HAVE YOUR NAME OR ORGANIZATION REMOVED FROM DISTRIBUTION LISTS OR REDUCE THE NUMBER OF COPIES RECEIVED BY YOU OR YOUR ORGANIZATION, CONTACT THE DOCUMENT CONTROL DESK (DCD)
ON EXTENSION 415-2083 TOTAL NUMBER OF COPIES REQUIRED:
LTTR 13 ENCL 12
P 1
I
Indiana Michigan Power Company 500 Circie Orive Buchanan, Ml 49107 1395 INOMiM MICHIGAN PQWM March 26, 1998 Docket Nos.:
50-315 50-316 U.S. Nuclear Regulatory Commission ATTN:
Document Control Desk Mail Stop 0-Pl-17 Washington, D.C. 20555-0001 AEP:NRC:0969BL Gentlemen:
Donald C.
Cook Nuclear Plant Units 1 and 2
RELIEF REQUEST FOR THE THZRD TEN-YEAR PUMP IN-SERVICE TEST PROGRAM
References:
Letter AEP:NRC:0969AM, "Donald C. Cook Nuclear Plant Units 1 and 2, RELIEF REQUESTS FOR THE THIRD TEN-YEAR PUMP IN-SERVICE
-TEST PLAN", dated June 12, 1996.
- Letter, G.
H.
- Marcus, NRC, to E.
E.
Fitzpatrick, I&M, "EVALUATIONOF THIRD TEN-YEAR INTERVAL FOR THE PUMP AND VALVE IN-SERV1CE TESTING PROGRAM FOR DONALD C.
COOK NUCLEAR PLANT, UNITS 1 AND 2 (TAC NOS M95721~
M95722g M95890~
AND M95981) dated May 27, 1997.
Letter AEP:NRC:0969BE, "Donald C. Cook Nuclear Plant Units 1 and 2, RELIEF REQUESTS FOR THE THIRD TEN-YEAR PUMP AND VALVE ZN-SERVICE TEST PLANS", dated August 19, 1997.
The third ten year in-service testing program for pumps was submitted in reference 1.
As part of that submittal, we submitted relief requests for code requirements that we had determined were impractical to meet.
In the NRC response to our relief requests, reference 2, request P-2 (boric acid transfer pump axial vibration measurements) was granted on an interim basis for ninety days.
The P-2 relief was revised and resubmitted on August 19,
- 1997, reference 3, indicating that it was not practical to take pump axial vibration measurements because of personnel safety considerations.
A conversation with members of your staf f
. was held on January 13, 1998, to discuss the August 19, 1997, relief request.
As a result of this conversation, we agreed to take axial vibration 9804020323 980326 PDR ADQCV, 050003~5 P
U.S. Nuclear Regulatory Commission
~'age.2 AEP:NRC:0969BL measurements at the outboard motor bearing in lieu of obtaining measurements at the pump bearings.
The attached relief request supersedes our previous submittals associated with the P-2 relief and reflects the agreed upon testing method discussed during the teleconference.
Sincerely, E.
E. Fitzpatrick Vice President
/vlb Attachment A. Abramson A. B. Beach MDEQ -
DW & RPD NRC Resident Inspector R.
Sampson
ATTACHMENT TO AEP:NRC:0969BL RELIEF REQUEST FOR THE THIRD TEN-YEAR PUMP IN-SERVICE TEST PROGRAM
, Attachment to AEP:NRC:0969BL Page 1
REQUEST NO.
2 - REVZSED RELIEF REQUEST THZRD TEN-YEAR INTERVAL PUMP IN-SERVZCE TEST PLAN TITLE:
Boric Acid Transfer Pump Axial Vibration Measurement UNIT APPLICABILITY: Units 1 and 2
PUMP NAME:
Boric Acid Transfer Pump PUMP NUMBERS:
1-PP-46-1, 2; 2-PP-46-3(
4 SYSTEM:
~ Chemical and Volume Control System (CVCS)
Makeup'LOW DIAGRAM:
12-5131 ASME CLASS
'2 PUMP FUNCTION:
Transfer boric acid solution from the storage tank to the charging pump suction header.
RELIEF, TYPE:
Compliance with code requirements is impractical.
ASME CODE TEST REQUIREMENT
REFERENCE:
OMa-1988, Part 6, Paragraph 4.6.4(a)
CODE RE UIREMENT DESCRIPTION On centrifugal pumps; measurements shall be taken in a plane approximately perpendicular to the rotating shaft in two orthogonal directions on each accessible pump bearing housing.
Measurements also shall be taken in the axial direction on each accessible pump thrust bearing.
BASIS FOR CODE COMPLIANCE RE UIREMENTS BEING IMPRACTICAL, By design, the only accessible point for taking axial vibration measurement is the outboard motor bearing. It is unsafe to monitor the axial direction vibration on the inboard pump bearing due to the proximity of the rotating shaft, and there is no position for monitoring the outboard pump bearing housing because
. of the presence of heat tracing.
Modifications to the coupling shield to allow access were attempted.
However, the modified shield did not
.provide sufficient clearance to allow individuals performing the measurement to safely place their hands near the'otating shaft.
PROPOSED ALTERNATE TESTING Axial vibration will be measured at the outboard motor'bearing.
The vibration limits contained in ASME Oma-1988, part 6, table 31, will be applied to the vibration levels monitored at the outboard motor bearing.
BASIS 'ALTERNATE TESTING YIELDS ACCEPTABLE LEVELS OF UALITY AND SAFETY The measurements taken in the axial direction at the outboard motor'"
bearing will be representative of the pump's axial vibration because the axial motion will originate at the pump;
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