ML17258A227
| ML17258A227 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 10/12/1980 |
| From: | Maier J ROCHESTER GAS & ELECTRIC CORP. |
| To: | Crutchfield D Office of Nuclear Reactor Regulation |
| References | |
| TASK-05-05, TASK-5-5, TASK-RR 811012, NUDOCS 8110150422 | |
| Download: ML17258A227 (11) | |
Text
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ROCHESTER GAS AND ELECTRIC CORPORATION o
89 EAST AVENUE, ROCHESTER, N.Y. l4649 JOHN E.
MAIER VICE PRESIOENT October 12, 1981 TCLCPHONC ARC* COOC TIC 546-2700 eEggp~~ i OCP~ ~
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~IEJ~ION PQIOI gl Director of Nuclear Reactor Regulation Attention:
Dennis M. Crutchfield, Chief Operating Reactors Branch No.
5 U. S. Nuclear Regulatory Commission Washington, D.C.
20555
Subject:
SEP Topic V-5, RCS Boundary Leak Detection R.
E. Ginna Nuclear Power Plant Docket No. 50-244
Dear llr. Crutchfield:
We have reviewed the SEP Topic V-5 assessment transmitted by letter dated July 22, 1981.
Our comments are included in the attachment.
Very truly yours, Attachment oS~
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Comments on NRC Assessment of SEP Topic V-5, July 22, 1981 In Section IV, Evaluation, the second sentence should state the information in the Final Safety Analysis Report, the Technical Specifications, and the referenced
- letters, was reviewed Additional references have been added following the "Conclusions" section of this assessment.
For simplicity, the term "Enclosure 1" should be changed to "Tables 1 and 2" throughout the assessment.
Conclusion 1 appears to be based on requirements in excess of current regulatory criteria.
The discussion of sensitivity of leak detection systems should address only the three required by Regulatory Guide 1.45.
The fact that Ginna has additional capability does not mean that this capability has to be noted in the Technical Specifications.
Additional information has been added to complete and/or correct Table 1.
Additional information has been provided in Table 2. It should be noted that Regulatory Guide 1.45 specifies only that the three leak detect,ion systems of Regulatory Position C.3.1 need to have a
1 gpm in 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> sensitivity.
It should also be noted that operating experience at Ginna has demon-strated the ability to rapidly identify leakage (see LER 81-004, submitted by letter dated February 25, 1981).
It is not clear what the purpose of Table 3 is, or how this table corresponds to Regulatory Guide 1.45 criteria. It is suggested that CVCS makeup be added to Table 1, and Table 3
be eliminated.
Specifications for CVCS makeup have been added to Table 1.
We do not agree that the current Westinghouse Standard Technical Specification 3/4.4.6 should be imposed upon Ginna.
The Ginna Technical Specification 3.1.5 presents limiting conditions for operation for systems to detect RCPB leakage.
The basis provides sensitivities for the minimum three systems required by Regulatory Guide 1.45.
Sur-veillance requirements are provided in Table 4.1-1. It is considered that. sufficient capability is available at Ginna to monitor RCPB leakage, and that this capability is adequately addressed in the Ginna Technical Specifications.
Although Regulatory Guide 1.45 specifies seismic capability for RCPB leak detection equipment, the basis for such a
requirement-is unclear.
Regulatory Guide 1.29, Seismic Design Classificiat'ion, is the general'asis used for deter-mining the'eed to provide seismic capability.
RCPB leak detection is not specified in Regulatory Guide 1.29.
Although much of this instrumentation is expected to be capable of withstanding a seismic event (especially an OBE),
no specific seismic qualification testing was performed for most of this equipment.
(Containment sump level and contain-ment pressure instrumentation are Seismic Category I, however.)
Based on our review of Regulatory Guide 1.29 and SEP Topic III-1, "Classification,"
we do not believe that a specific seismic design requirement for leak detection systems is warranted.
The following references should be included in this assessment:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
12.
13.
Regulatory Guide 1.45, h1ay 1973 R.
E. Ginna FSAR, Sections
- 4. 2 and 11. 2 R.
E. Ginna "Supplement 1 to Technical Supplement Accompanying Application for a Full-Term Operating
- License, December 20,
- 1973, response to questions 7c and 10.
Westinghouse Standard Technical Specifications R.
E. Ginna Technical Specifications Letter from John E. Maier, RG&E, to Boyce H. Grier, USNRC, Region 1, IE Bulletin 80-24, dated 12/31/80.
Letter from John E. Maier, RGSE, to Boyce H. Grier, USNRC, Region 1, LER 81-004, February 25, 1981.
Draft SEP Review of Topic IX-3, Station Service and Cooling Water Systems, by letter from Crutchfield to Maier, June 23, 1981.
Letter from L. D. White, Jr.,
RGGE, to Dennis L. Ziemann,
- NRC, SEP Topic V-10.A, February 2, 1979.
Letter from Dennis M. Crutchfield, NRC, to John E. Maier,
- RGGE, SEP Topic V-5, March 10, 1981.
Letter from John E. Maier, RG&E, to Dennis M. Crutchfield,
- NRC, SEP Topic V-5, March 23, 1981.
Letter from Dennis M. Crutchfield, NRC, to John E. Maier,
- RG6E, SEP Topic V-5, July 22, 1981.
Regulatory Guide 1.29, "Seismic Design Classification,"
Revision 3, September 1978.
II 4
REACTOR COOLANT PRESSURE BOUNDARY LEAKAGE DETECTION SYSTEMS Plant:
R. E. Ginna Table 1:
RCPB to Containment S stem Time Req'd Earthquake For Control Room Leak Rate to Achieve Which Function Indication for 'ocumentation Testable During Inco orated Sensitivit Sensitivit Is Assured Alarms 6 Indicators Reference Normal eration l)
Sump Level Monitoring (Inventory) 2)
Sump Pump Actuations Monitoring (Time Meters) 3)
Airborne Particulate Radioactivity Monitoring 4)
Airborne Gaseous Radioactivity Monitoring 5)
Condensated Flow Rate from Air Coolers Yes Yes Yes Yes Yes 1 gpm (2) 2 gpm 10 gpm 1 to 30 gpm 1 hr 1 hr Not Available Not Available Not Available Not Available Not Available Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes 6)
Containment Atmosphere Pressure Monitoring 7)
Containment Atmosphere Humidity Monitoring 8)
Containment Atmosphere Temperature Monitoring 9)
CVCS Flowrate Yes Yes Yes Yes 2-10 gpm Not Available 0.25 gpm 1 hr 1 hr SSE Not Available Not Available Not Available Yes No Yes Yes Yes Yes Yes Yes (1) See references 2, 3, 5 and 7
(2)
.013 gpm within twenty minutes assuming the presence of corrosion product activity per Technical Specifications 3.1.5.3.
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iREACTOR COOLANT PRESSURE BOUNDARY LEAKAGE DETECTION SYSTEMS
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Plant:
R. E. Ginna Table 2:
Inters stem Ieaka e
S stems Which Interface w/RCPB Methods to Measure RCPB In-Ieaka e
Ieak Rate Sensitivit Time Req'd to Achieve Sensitivit Earthquake For Control Room Which Zunction Indication for Documentation Testable During Is Assured Alarms 6 Indicators Reference Normal 0 eration 1)
Secondary System Condenser Air Ejector Rad.
Monitor
.02 gpm 1 minute Not Available Yes Reference 2
Yes 2)
Secondary System Blowdown Monitor
.0025 gpm-1 hour Not Available Yes Reference 2
Yes 3)
Component Cooling Water System Surge Tank Not Available Not Available level Not Available Yes Reference 8
Yes 4)
Component Cooling Water System Rad. Monitor 0.16 gal.
Not Available Not Available Yes References 3&5 Yes
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-Total leakage of 0.15 gallons necessary for indication.
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