B11671, Forwards Response to 850813 Request for Addl Info Re Encl marked-up Draft Tech Specs.Meeting to Resolve Disagreement Re Inclusion of Lists of Design Info or Equipment Requested

Forwards Response to 850813 Request for Addl Info Re Encl marked-up Draft Tech Specs.Meeting to Resolve Disagreement Re Inclusion of Lists of Design Info or Equipment Requested

ML20134H535
Person / Time
Site:	Millstone
Issue date:	08/21/1985
From:	Opeka J, Sears C NORTHEAST NUCLEAR ENERGY CO., NORTHEAST UTILITIES
To:	Youngblood B Office of Nuclear Reactor Regulation
Shared Package
ML20134H537	List: B11671, Forwards Response to 850813 Request for Addl Info Re Encl marked-up Draft Tech Specs.Meeting to Resolve Disagreement Re Inclusion of Lists of Design Info or Equipment Requested ML20134H538
References
B11671, NUDOCS 8508290025
Download: ML20134H535 (11)

Text

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HARTFORD, CONNECTICUT 06141-0270 g e.w.s, urms iam c "*."-

.,0....s, . . co (203) 665-5000 August 21,1985 Docket No. 50-423 Bl1671 Mr. B. 3. Youngblood, Chief Director of Nuclear Reactor Regulation Licensing Branch No. I Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Reference:

(1) B. 3. Youngblood letter to 3. F. Opeka, " Request for Additional Information for Millstone Nuclear Power Station, Unit No. 3, dated August 13,1985.

Dear Mr. Youngblood:

Millstone Nuclear Power Station, Unit No. 3 Technical Specifications The above referenced letter requested NNECO submit additional information concerning the draf t Technical Specifications for Millstone Unit No. 3. Enclosed please find NNECO's response to the questions raised.

Because of the significant disagreement concerning inclusion of lists of design information or equipment in the Technical Specifications, NNECO hereby requests a meeting to resolve this issue as soon as possible. We will provide appropriate level management people to resolve this issue.

Reference (1) requested a response within seven days. We received notification of this letter on August 14,1985 and are thus able to respond within seven days of receipt of the request.

8508290025 850821 3 PDR ADOCK 050

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-2 We trust the attached will resolve the Staff's concerns. If there are additional questions, please contact our licensing representative directly.

Very truly yours, NORTHEAST NUCLEAR ENERGY COMPANY et. al.

BY NORTHEAST NUCLEAR ENERGY COMPANY Their Agent a.oA

3. F. Opeka Senior Vice President By: C. F. Sears Vice President STATE OF CONNECTICUT)

) ss. Berlin COUNTY OF HARTFORD )

Then personally appeared before me C. F. Sears, who being duly sworn, did state that he is Vice President of Northeast Nuclear Energy Company, an Applicant herein, that he is authorized to er ;ute and file the foregoing information in the name and on behalf of the Appliunts herein and that the statements contained in said information are true and correct to the best of his knowledge and belief.

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Notary Publig My Commission Expires March 31,1988 i-

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Additional Information Required from Millstone 3 ITEMS

l. Based on discussions with Fire Protection reviewer, NU to propose new wording for Fire System Operational Test definition, i

Response

FIRE DETECTOR OPERATIONAL TEST 1.31 A FIRE. DETECTOR OPERATIONAL TEST shall be the injection of a simulated signal into the channel at the primary sensor to verify Detector OPERABILITY and alarm transmission to the 2ocal zone panel.

2. Table 2.2-1: Values for trip setpoints/allowat,le values are preliminary values. NU needs to provide final values and setpoint methodology analysis report to finalize table.

Response

Table 2.2-1, Reactor Trip System Instrumentation Trip Setpoints. The final draf t of Table 2.2-1 will be submitted later.

3. NU needs to provide additional information to justify change of wording from STS for T/S 3.1.2.1.a.

Response

The changes to specification 3.1.2.1.a and 3.2.2.2.a are necessary to make the specification consistent with the wording in specifications 3.1.2.5 and 3.1.2.6. The intent is that the specification be on minimum volume of boric acid, and this can be met with one boric acid tank on Millstone 3.

4. NU needs to provide additional information to justify change of wording from STS for T/S 3.1.2.2.a.

Response

The changes to specification 3.1.2.1.a and 3.2.2.2.a are necessary to make the specification consistent with the wording in specifications 3.1.2.5 and 3.1.2.6. The intent is that the specification be on minimum volume of boric acid, and this can be met with one boric acid tank on Millstone 3.

5. T/S 3.1.1.1 Need SHUTDOWN MARGIN value.

Response

The correct value for SHUTDOWN MARGIN is 1.6% Ak/k in both 3 and 4 loop operation.

6. T/S 3.1.2.5 Need minimum borated water volume (gallons) for the Boric Acid Storage System and the RWST.

Response

See the attached copy of Specification 3.1.2.5.

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7. T/S 3.1.2.6 Need minimum borated water volume (gallons) for the Boric Acid Storage System.

Response

See the attached copy of Specification 3.1.2.6.

8. T/S 3.1.3.4 Need RATED THERMAL POWER value for ACTION b.

Response

The correct value for ACTION b is 65%

9. Figure 3.1-1 Need new figure of good quality that is reproducible.

Response

New Figure attached.

10. Figure 3.1-2 Need new figure of good quality that is reproducible.

Response

New Figure attached.

11. Figure 3.2-la Need new figure of good quality that is reproducible.

Response

New Figure attached.

12. Figure 3.2-lb Need new figure of good quality that is reproducible.

Response

New Figure attached.

13. Figure 3.2-2a Need new figure of good quality with grid background that is reproducible.

Response

New Figure attached.

14. Figure 3.2-2b Need new figure of good quality with a grid background that is reproducible.

Response

New Figure attached.

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15. Table 3.3-4 Item 8 Need trip setpoint and allowable values.

Response

See the attached portion of Table 3.3-4 for the current setpoints.

16. Table 3.3-5 Item 15 Need response times.

Response

See item 15.

17. T/S 4.3.3.2 Need justification for change in wording from STS.

Response

Replace T/S 4.3.3.2 with the following:

4.3.3.2 The Mevable incore Detection System shall be demonstrated OPERABLE at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> by irradiating each detector used and determining the acceptability of its voltage curve for:

a. Recalibration of the Excore Neutron Flux Detection system, or

b. Monitoring the QUADRANT POWER TILT RATIO, or

c. Measurement of FN H, FQ(2), and Fxy-The above change makes the specification consistent with the method of testing described in the bases for this specification and the actual method used by the plant to meet the surveillance. Normalization of Detector output is done in computer sof tware after a Flux map has been completed rather than before a map is done.

18. Table 3.3-11 Need updated no. of detectors to reflect total number of each functional type in each area.

Response

See the attached list of detectors.

19. T/S 4.4.5.4a.6) Need value for tube plugging limit.

Response

The tube plugging limit is 40% of the nominal tube wall thickness.

20. Figures 3.4-2 and 3.4-3 Provide figures.

Response

New Figures attached.

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21. . T/S 3.4.9.2 Need value for spray water AT.

Response

The value for spray water AT is 3200F.

22. T/S 3.4.9.3 Need value for RCS vent size (square inches).

- Response:

The RCS vent size should be 2 7.0 square inches.

23. T/S 3.5.1 Need borated water volume values.

Response

See the attached copy of specification 3.5.1.

24. T/S 4.5.2.f(4) Need value for containment recirculation pump differential pressure.

Response

The value for Containment Recirculation pump differential pressure is 2130 psid.

25. .T/S 4.5.2.h.1)b) and 2)b) Need value for total pump flow rate.

Response

See the attached copy of the specification for the correct numbers.

26. T/S 4.6.1.2.e Need value for combined bypass leakage rate.

Response

The combined bypass leakage rate will be submitted later.-

27. Table 3.6-1 Provide bypass leakage paths.

Response

Table 3.6-1 Enclosure Building Bypass Leakage Paths Penetration Release Location 14 Cround Release 15 Ground Release

?8 Plant Vent 29 Plant Vent 35 Plant Vent 36 Plant Vent 37 Plant Vent 38 Plant Vent 45 Plant Vent

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-5 Response 27 Continued:

Table 3.6-1 (CONTINUED)

Enclosure Building Bypass Leakage Paths Penetration Release Location 52 Turbine Building Roof Exhaust 54 Turbine Building Roof Exhaust 56 Ground Release 70 Ground Release 72 Plant Vent 85 Ground Release 86 Plant Vent 116 Plant Vent

28. T/S 4.6.1.3.b 2) Need submittal of Appendix 3 exemption to have provision remain in technical specifications.

Response

The Millstone 3 air lock design requires the installation of a strong back on the inner door to permit pressurization to Pa (54.1 psia). The presence of the strong back for leak l testing prior to start-up can hinder personnel access to the containment. Such access is often required for last minute operational leakage checks. To facilitate these operations, l the following Appendix 3 exemption is suggested.

i It is requested that the Staff permit Millstone 3 be exempt from complete air lock testing at Pa prior to establishing containment integrity (per 10CFR50 Appendix 3 Section D.2.b.ii) unless air lock maintenance that could affect sealing capability, has just been performed on the air lock.

The provisions of the proposed Millstone 3 surveillance,4.6.1.3.a, would permit the air lock door seals to be tested at Pa just prior to start-up. This test of the double O-ring door seals is considered to meet the intent of Appendix 3 without pressurization of the entire air lock.

29. Figure 3.6-1 Provide new figure of good quality that is reproducible.

Response

New Figure attached.

30. T/S 4.6.1.3.a Provide justification for change in method from STS Rev. 5.

Response

A revision to the Rev. 5 method is requested for specification 3.6.1.3.a to provide more flexibility in performing the surveillance. Both methods of testing are correct and can supply a verification that the door will not leak (See the attached copy of the specification for the proposed revision.)

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31. T/S 4.6.1.5 Provide air temperature measurement locations.

. Response:

The air temperature measurement locations of specification 4.6.1.5 will be determined during Pre-Core Hot Functional Testing, scheduled fer September 1985, and the appropriate detectors location will be provided following this determination.

32. T/S 4.6.2.1 b) Provide value for pump differential pressure.

Response

The value for Quench Spray Pump differential pressure is }_114 psid.

33. T/S 4.6.2.2 b) Provide value for pump differential pressure.

Response

The value for Containment Recirculation pump differential pressure is }_130 psid.

34. .T/S 4.6.2.3 d Provide method to verify flow path open.

Response

T/S 4.6.2.3 d, Spray Additive System Surveillance to verify flow path. NNECO submitted justification to delete this surveillance August 12,1985.

35. Table 3.6-2 Provide complete listing of values that correspond to penetrations listed in FSAR Table 6.2-65.

Response

. Table 3.6-2 !s not intended to be a listing of all valves that service a containment f- penetration. Table 3.6-2 contains valves which get phase A or phase B isolation signals or L

mariual valves which are controlled administratively during operation. Technical Specifications are not meant to be a document that duplicates all the design information

contained in other docketed design documents (e.g., FSAR). FSAR describes the plant i

design and is also a controlled document. FSAR 9 We 6.2-65 contains far more information (i.e., all containmer,t penetration valves} h that required for the operator to perform the necessary surveillance testing to nsF.Me m erability.

36. - T/S 3.6.5 2 Provide justification to delete specification.

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T/S 3.6.5.2, Mechanical Vacuum Pumps F NNECO submitted justification to delete this specification August 12,1985.

37. . T/S 3.7.6 Provide new T/S wording using Rev. 5 STS.

Rese See the attached revised copy of specification 3/4.7.6.

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38. T/S 4.7.12.1 Millstone to propose additional T/S to test dampers on 18-month basis.

Response

The revised specification 4.7.12.1 is attached.

39. T/S 3.8.1.1.b 1) Provide minimum day tank volume.

Response

The correct minimum Day tank volume should be 40% (205 gal).

40. T/S 3.8.1.1.b 2) Provide minimum fuel storage system volume.

Response

The correct minimum storage tank volume should be 88% (32760 gal).

41. T/S 4.8.1.1.2 a 5) Provide justification for acceptability of 4160 (+240,-460).

Response

Upon further review we agree with Standard Technical Specifications 1420 volts is the correct value.

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42. T/S 3.8.1.2 b 1) Provide minimum day tank volume.

Response

The correct minimum Day tank volume should be 40% (205 gal).

43. T/S 3.8.1.2.b 2) Provide minimum fuel storage system volume.

Response

The correct minimum storage tank volume should be 88% (32760 gal).

44. T/S 3.8.2.1 Provide detailed justification for proposed changes.

Response

Millstone 3 has 4 vital 125 volt batteries and 4 vital 120 volt AC inverters. The two larger batteries (200 amp capacity) 301 A-1 and 301B-1 supply both backup power to vital 120 volt AC inverters supplying 120 volt vital busses VIAC 1 and VIAC 2 and DC control power to Train A and Train B equipment. The two smaller batteries (50 amp capacity) 301 A-2 and 301B-2 supply only backup power to the two other vital AC inverters supplying 120 volt vital AC busses VIAC 3 and VIAC 4.

The restoration time for channel power supply should be consistent with the plant specific design. As batteries 301A-2 and 301B-2 only serve as backup power supplies to vital AC inverters, the action statement for a loss of 301 A-2 and 301B-2 should be consistent with the action statement for a loss of a vital inverter in specification 3.8.3.1 Action b(2).

3 Response 44 Continued:

The changes originally submitted to the Standard Technical Specifications are necessary to make Technical Specifications consistent with plant design and consistent within themselves.

45. Tables 3.8-2a and 3.8-2b Provide value listings.

Response

Inclusion of a General listing of equipment or design information in Technical Specifications is inconsistent with the significant ongoing efforts to optimize Technical Specifications. Docketed information, principally the FSAR, provides equipment listings and design information concerning Millstone 3 and is a controlled document. Placing a listing of equipment in Technical Specifications creates two design documents causing control and management problems.

In ef fect, listings in Technical Specifications also preclude the resolution of future issues such as adding devices or equipment. General listings of equipment, such as snubbers, have already been removed from the Technical Specifications. It is NNECO's position that the inclusion of Tables 3.S-1, 3.8-2a and 3.8-2b is inconsistent with previous sections of the Technical Specifications. Placing a general listing of equipment in Technical Specifications makes the specifications confusing to work with and does not improve the operation or safety of the plant.

46. Table 3.8-1 Provide complete listing of protective devices.

Response

Inclusion of a General listing of equipment or design information in Technical Specifications is inconsistent with the significant ongoing efforts to optimize Technical Specifications. Docketed information, principally the FSAR, provides equipment listings and design information concerning Millstone 3 and is a controlled document. Placing a listing of equipment in Technical Specifications creates two design documents causing control and management problems.

In ef fect, listings in Technical Specifications also preclude the resolution of future issues such as adding devices or equipment. General listings of equipment, such as snubbers, have already been removed from the Technical Specifications. It is NNECO's position that the inclusion of Tables 3.8-1, 3.8-2a and 3.8-2b is inconsistent with previous sections of the Technical Specifications. Placing a general listing of equipment in Technical Specifications makes the specifications confusing to work with and does not improve the operation or safety of the plant.

47. T/S 3.9.6 Millstone to provide new submittal.

Response

Our revised submittal for Specification 3.9.6 is attached.

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48. Figures 5.1-1,5.1-2,5.1-3 Provide figures.

Response

New Figures attached.

49. Figures 6.2-1, 6.2-2 Provide figures.

' Responses New Figures attached.

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