ML19317D260
| ML19317D260 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 01/26/1978 |
| From: | Schwencer A Office of Nuclear Reactor Regulation |
| To: | Parker W DUKE POWER CO. |
| References | |
| NUDOCS 7911190638 | |
| Download: ML19317D260 (4) | |
Text
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UNITED $TATES
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8 NUCLEAR REGULATORY COMMISSION WASHINGTON. D C. 20555 g
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Docket Nos. 50-269 January 26, 1978 50-270 and 50-287 Duke Power Company ATTN:
Mr. William 0. Parker, Jr.
Vice President Steam Production Post Office Box 2178 422 South Church Street Charlotte, Narth Carolina 28242 Gentlemen:
We are currently reviewing the Inservice Inspection and Testing Programs for Oconee Units 1, 2 and 3 which were submitted with separate schedules.
We find that we need additional information so that we can continue our review of these programs. identifies additional infonnation we need on the Unit 1 progran based on our review of your submittal dated May 26, 1977. identifies the information we need on the Units 2 and 3 programs based on our review of your submittals dated July 8 and September 21, 1977.
It is requested that you provide the information identified in the enclosures within 30 days of receipt of this letter.
Sincerely,,
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f_hba<cWfDL-l A. Schwencer, Chief l
Operating Reactors Branch el i
Division of Operating Reactors
Enclosures:
1.
Request for Additional r
l Information-Unit 1 2.
Request for Additional l
Information-Units 2 & 3 i
cc w/er. closures:
See next page l
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Duke Pc,ser Ccopany January 26, 1978 cc: fir. t!illian l., Porter Duke Po.ier Carpany P. O. Box 2170 422 Sci'ith Church Strcet Charlotte, f: orth Carolina 20242 J. flichael tkGrrry, Ill, Esquire Decevoise & Liber.i.'n 700 Shoreham 1:uilding 806-15th Strec t, I;W.,
1.'a shing ten, D. C.
20005 Oconee l'oblic Library 201 South Sprit.g Strect Walhalla, South Cz.relina 29691 b
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ENCLOSURE 1 REQUEST FOR ADDITIONAL INFORMATION OCONEE UNIT 1 Inservice Examination 1.
Your renly to our request #1 " Attachment 1 Comments", imolies that additional requests for relief in this area of your program may be forthcoming.
Indicate when such requests will be made in order that the completeness of your program may be established.
2.
Paragraph IWA-1400(f) of the ASME Code Section XI requires the owner to have an arrangement with an Authorized Inspection Agency to provide inspection services.
In your response to our reouest #2 you reply that the required inservice examinatiens will not be witnessed by a third party inspector. Justify this apparent non-compliance with the code requirements.
Inservice Testing of Pumps 1.
For the boric acid and low pressure Boric Acid pumps, request for relief from flow measurement is made with no alternative means to verify proper flow.
Clarify how flow deterioration will be established so that the safety of these systems can be assured.
2 For the HPI, CBAT and LP boric acid pumps, request for relief from lube oil level measurement is made with no alternative means to verify the lube oil level.
Indicate how the oil level will be maintained without surveilla ce.
3.
Justify your request for relief from maintaining the instrument nominal tolerances listed in Table IWP-4110-1 for the instruments having tolerances greater than + 2% of full scale.
Prooosed Technical Specification Revision 1.
With regard to your response to our request #2, revisions to your ISI orogram which concern additional requests for relief from certain examinations or testing which are identified after the approval of your original submittal, should be made within 30 days of the discovery and should be included in the next 20 or 40 month period submittal and not at the end of the 120 month interval.
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I ENCLOSURE 2 REQUEST FOR ADDITIONAL INFORMATION OCONEE LNITS 2 AND 3 1.
Justify the application of Section XI of the 1970 Edition of the ASE Boiler and Pressure Vessel Code, including the Winter 1970 Addenda in your request for relief of the following items rather than application of the 1974 Edition including the Sumer 1975 Addenda:
1)
Core Flood and Decay Heat Removal System - Attachment Welds 53A and 10ZA.
- 2) High Pressure Injection System - Attachment Welds 93Z and 89C.
2.
Provide the basis for concluding that flow measurements for the concentrated boric acid low pressure pumps and auxiliary service water pumps is not required to demonstrate operability.
Indicate why a station modification is not considered tn be necessary.
3.
Propose a schedule for.the periodic alternation of operating and stand-by pumps for the' purpose of measuring Pi.
4.
State the alternate methods of verification of proper lube oil level for the CVAP, the LB boric acid pumps and the ' auxiliary service water pump you have considered. Has an augmented bearing temperature verification program been considered? Discuss the feasibility of-modifying these pumps or the feasibility of conducting lube oil level verifications through disassembly of the pumps.
5.
Provide an alternative schedule for the testing of all valves that cannot be tested during power operation.
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Provide information for all valves that cannot be leak tested to support the determination that this requirement is imoractical.
Provide an alternate plan by which the safety function of the untqsted system can be confirmed.
7.
For each valve that cannot be exercised, provide tN basis for concluding that the valve can be demonstrated operable and the l
system can perfonn its intended safety function.
8.
Provide information is justify a five year inspection interval l
for valves 285-19, 285-14, 385-14 and 385-19, rather than the l
interval specified in IWV-3520.
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