ML20134D519

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Application to Amend License DPR-54,upgrading Existing Tech Specs for Compliance W/App R Requirements & Providing Addl Tech Specs Re Fire Protection Features.Safety Analysis & NSHC Determination Encl
ML20134D519
Person / Time
Site: Rancho Seco
Issue date: 08/01/1985
From: Reinaldo Rodriguez
SACRAMENTO MUNICIPAL UTILITY DISTRICT
To: Thompson H
Office of Nuclear Reactor Regulation
Shared Package
ML20134D521 List:
References
RJR-85-375, TAC-59510, NUDOCS 8508190259
Download: ML20134D519 (11)
v • d • e


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$SMU- SACRAMENTO MUNICIPAL UTILITY DISTRICT C 6201 S Street, P.o. Box 15830. Sacramento CA 95852-183o.(916) 452-3211 AN ELECTRIC SYSTEM SERVING THE HEART OF CALIFORNIA RJR 85-375 August 1, 1985 DIRECTOR OF NUCLEAR REACTOR REGULATION ATTENTION HUGH L THOMPSON JR DIRECTOR DIVISION OF LICENSING V S NUCLEAR REGULATORY COMMISSION WASHINGTON DC 20555 DOCKET NO. 50-312 i

LICENSE N0. DPR-54 PROPOSED AMENDMENT NO. 137 i In accordance with 10 CFR 50.59, the Sacramento Municipal Utility District hereby proposes to amend its Operating License DPR-54 for Rancho Seco Nuclear Generating Station Unit No. 1. Per the requirements of 10 CFR 50.92, this

, Proposed Amendment 137 has been evaluated by a No Significant Hazards Con-sideration in Attachment 1.

The attached Technical Specifications are provided to upgrade the existing Technical Specifications to be in compliance with the applicable Appendix R requirements based on the 1985 Rancho Seco FHAR update. In addition, as stated in the District's letter to NRC dated May 16, 1985, the District committed to provide by August 1, 1985, Technical Specifications to address NRC concerns as to fire protection features of the NSEB Attachment II to this submittal is a description of the proposed changes for Proposed Amendment 137.

Enclos'ed is a check for $150.00 as required by 10 CFR 170.21, " Statement of Fees."

Should you have any questions concerning this proposal, please contact Mr.Ron so 0 % at Rancho Seco Nuclear Generating Station.

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od ASSISTANT GENERA MANAGER, NUCLEAR ,

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g Subscribed and sworn to before me ,,,_,,,,,,9 this /# day of 66u-4 6 , 1985. l ,,,,, PATRICIA K. GEISLER O

li[NEp-:' we NOTABY y rret.Ic-cAttrORNIA

, rRINCIPAL OFFICE IN j p, l M SACRAMENTO COUNTY 8 'f .MU m/ \e _A [ My Commission Egires February 16,1988 ;j g

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Notary Pub 1ic / *"*""""""""""""""""""""*""*""""""""*2 RANCHO SECO NUC, LEAR GENERATING STATION O 1444o Twin Cities Road, Herald, CA 95638-9799;(209) 333-2935

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  • ACJUSTMENT CODES: , , , , , , , , * , , , , , , , ,

S Street, P.O. Box 15830, Secrements. CA 95813 (916) 452 3211 1. Prsi nt 4 - credit Memo 1 3- - - 2.so.e. T.E s . neteausa 8880267-201 088450 i

. 3 Decit Mems 6 -Otner INwesCE ADJUSTaeEwys DISCOUNT NET INwOICE NO. DATE G5 DOSS AmeOU NT e NO. 137 07/25/35 150.00 0.00 0.00 150.00

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6201 S Street.P.O. Box 15830, Sacramento CA 95813

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PAY EXACTLY k *******150.00) $

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ATTN: WILLIAM 0. MILLER, CHIEF .

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WASHINGTON DC 20555  ;

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APPENDIX R TECHNICAL SPECIFICATIONS The District has embarked on an Appendix R reevaluation program. This program, to date, has resulted in the identification of.1) revisions to previously submitted exemptions; 2) additional exemption requests; 3) plant modifications; and .4) revision to the response to Generic Letter 81-12 (i.e.,

alternate shutdown capability). In addition, the District has developed the 1985 Rancho Seco Fire Hazard Analysis Report (FHAR) update based on providing alternative shutdown capability. Fire areas requiring plant modifications to comply with Appendix R requirements are provided with necessary compensatory measures until such time as those modifications are completed. The District has ensured Rancho Seco's compliance with Appendix R, III.G, either by analysis, modification, exemption request, or by putting suitable compensatory measures into place until resolution of the concern is reached.

The attached Technical Specifications are provided to upgrade the existing Technical Specifications to be in compliance with the applicable Appendix R requirements based on the 1985 Rancho Seco FHAR update. In addition, as stated in the District's letter to NRC dated May 16, 1985, the District committed to provide by August 1, 1985, Technical Specifications to address NRC concerns as to fire protection features of the NSEB. This submittal provides these additional Technical Specifications for the NSEB fire protection features. In support of this effort, the District has revised or drafted a total of 50 Appendix R procedures.

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y y SAFETY ANALYSIS

$. RANCHO SECO NUCLEAR GENERATING STATION l.og Ns.

NCR NG , WORK REQUEST No.

ECN.No. ,

N/A- N/A N/A

Description:

(A detailed description of the desiredggs d w tgtgigt groggejffcatiggig inegdggeg iS*c'l* uke P d d 'i M I* N e'd3 protection components in the auxiliary building, turbine building, and NSEB, and clarify requirements on fire barriers. The minimum operable require-mints for heat, flame, and smoke detectors have been increased from approximately 50 percent of those available to requiring 100 percent of the available detectors being .

. operable.

' Reason for Change:

(A statement as to why the change is being requested.)

These revisions will upgrade the existing technical specifications to be in compliance with the applicable Appendix R requirements based on the 1985 Rancho Seco Fire Hazard Analysis Report (FHAR) update.

Evaluation and Basis for Safety Findings: ,

(The evaluation will address itself to specific sections of the SAR or Technical Specifications as applicable. If a safety question is involved, this will be so stated.) The fire protection components are based on the 1985 Rancho Seco FHAR update which defines areas containing redundant systems important to safe shutdown. The circuits for detection systems, CO2 systems, ana water suppression systems are non-class 1 and hav.e'no impact on safety related circuits or equipment. Failure considerations for water systems are discussed in USAR section 9.9.2.2 for auxiliary building and there is no adverse safety impact.

  • For NSEB, evaluation is provided in May 14, 1985 letter to NRC and there is no adverse impact.

(See Attached)

Safety Findings:

Yes No O ~ G The proposed change is a change to the facility as described in the SAR.

  • The fire protection components, if actuated,

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- O The proposed change affects Nuclear Safety, may impact nuclear safety.

O G The proposed' change does involve an Unreviewed Safety Question (If an Unreviewed Safety Question is involved, check the appropriate reason).

O Probability of occurrence or the consequences of an accident or malfunction of equipment important to safety previously evaluated in the safety analysis report may be increased.

O Possibility for an accident or malfunction of a different type than any evaluated previously in the safety analysis report may be created.

O The margin of safety as defined in the basis for any Technical Specification is reduced.

3 O The proposed change does involve a change in the Technical Specifications.

E - O The proposed change does involve an addition to the Technical Specifications.

i DATE REVIEW ENGINE DATE UCENSING ENGtNEER 7

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SAFETY ANALYSIS RANCHO SECO NUCLEAR GENERATING STATION ATTACHMENT The minimum operable requirements for detectors have been increased because

.the present operability requirement does not adequately address the cross zoning features of some of the detection systems. Also there are certain conditions when the loss of the second detector in a system will not be detectable in the control room and only. a walkdown of the system can determine detector operability.

Other changes are administrative in nature and have no safety impact.

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I Attachmsnt I .

No Significant Hazards Determination f-The proposed technical specifications have been evaluated and the District has determined that there is "No Significant Hazard consideration". The basis of this determination is:

1. Additional detectors, water suppression systems, carbon dioxide systems, and hose stations have been added to the j Tables to reflect the 1985 Rancho Seco FHAR update which  !'

defines the safety related fire areas or areas containing redundant systems important to safe shutdown. Attachment II ,

-contains a detailed analysis of each proposed change. (See  ;

items 2 through 14, 16 through 21, 23 through 26, 28, and 29.)

This change is a "No Significant Hazard Consideration" i based in example (ii) on page 14870 of Federal Register i notice dated April 6, 1983 which states " A change that i constitutes an additional limitation, restriction or control. not presently included in the Technical '

Specifications; for example, a more stringent surveillance requirement."

2. Specifications 3.14.3.1, 3.14.4.1 and 3.14.5.1 have been reformatted to a table format. The system location titles and zone designations have been revised to be consistent ,

with the titles and zone designations used on the control room displays. The fire protection technical specification bases and definition of the areas protected by fire barriers have been revised to be consistent with the 1985 Rancho Seco FHAR update. The reporting requirements of specification 6.9.5.E has 1,een modified to be consistent with specification 3.14. Attachment II contains a detailed analysis of each proposed change. See items 1, 15, 22, 27, 30, 31, and 32.

These changes are a "No Significant Hazard Consideration" based on example (i) on page 14870 of Federal Register notice dated April 6, 1983 which states "A purely administrative change to Technical Specifications,cfor example, a change to achieve consistency throughout the Technical Specifications, correction of an error, or a

change in nomenclature" (

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  • ATTACHMENT II .
  • Description of Proposed Changes  !

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1. Table 3.14-1, pages 3-55 through 3-55c--Instrument location title and zone designations have been revised to be consistent with titles and zone designations used on the control room displays. (NSHC No. 2)*
2. Table 3.14-1, pages 3-55 through 3-55c--The minimum operable require-ments for heat, flame, and smoke detectors have been increased 4

from approximately 50 percent of those available to requiring 100 percent of the available detectors being operable. A reanalysis I of the system design and control room display features has shown that the present operability requirement does not adequately ad-dress the cross zoning features of some of the detection systems.

Also, there are certain conditions where the loss of the second detector in a system will not.be detectable in the control room and only a walkdown of the system can determine detector opera- ,

bility. Therefore, the operability requirements have been in-creased in a conservative manner such that the loss of a single  :

i detector will result in the establishment of hourly fire watch until the problem can be repaired. (NSHC No. 1)

3. Table 3.14-1, page 3-55--Existing detector zones 5 (South East l' Uncontaminated Area--Turbine Deck, Auxiliary Building) and 7 (Con-taminated Area--Turbine Deck, Auxiliary Building) have been added h to provide fire detection for portions of redundant systems impor-i tant to safe shutdown as described in the 1985 Rancho Seco Fire Hazard Analysis Report (FHAR) update. See fire area RT1. (NSHC No. 1)
4. Table'3.14-1, pages 3-55 through 3-55b--Existing detections zones 31 (Auxiliary Lube Oil Area--Grade Level, Turbine Building), 32 l

(Main Lube Oil Area--Grade Level, Turbine Building), 33 (Hydrogen i

Sealed Oil Unit--Grade Level, Turbine Building), 35 (Main Feed l

Pump Area), and 53-54 (Turbine Area) have been added to provide fire detection for portions of redundant systems important to safe shutdown as described in the 1985 Rancho Seco FHAR update. See fire area 71. (NSHC No. 1)

5. Table 3.14-1, pages 3-55--Existing detection zone 20 (Electrical Penetration Room--Mezzanine Level, Auxiliary Building) has been added to provide fire detection for portions of redundant systems important to safe shutdown as described in the 1985 Rancho Seco FHAR update. See fire areas 27 and 28. (NSHC No. 1)
6. -Table 3.14-1, page 3-55--Existing detection zone 21 (Reactor

. Building, 20 feet to 40 feet Level) has been added to provide detection for portions of redundant system's important to safe shutdown as described in the 1985 Rancho Seco FHAR update. See fire area 69. (NSHC No. 1)

O(NSHC--Refers tn "No Significant Haza'rds Consideration" in Attachment I) 1

' 7. Table 3.14-1, paga 3-55a--Existing detection zone 42 (Electrical Penetration Room--Grade Level, Auxiliary Building) has been added to provide fire detection for portions of redundant systems impor-tant to safe shutdown as described in the 1985 Rancho Seco FHAR update. See fire areas 36, 62, and RBl. (NSHC No. 1)

8. Table 3.14-1, page 3-55a--Existing detection zone 43 (Chemical Mix Area--Grade Level, Auxiliary Building) has been added to provide fire detection for portions of redundant systems important to safe shutdown as described in the 1985 Rancho Seco FHAR update. See fire areas 36 and RG1. (NSHC No. 1)
9. - Table 3.14-1, page 3-55b--Existing detection zone 46 (Hut Area--

Basement Level, Auxiliary Building) has been added to provide fire detection for portions of redundant systems important to safe shutdown as described in the 1985 Rancho Seco FHAR update. See fire areas 47 and RB2. (NSHC No. 1)

10. Table 3.14-1, page 3-55b--Existing detection zone 83 (NSEB Corridor, 1 foot Level) has been added to provide fire detection for portions of redundant systems important to safe shutdown as described in the 1985 Rancho seco FHAR update. See fire area 83. (NSHC No. 1)
11. Table 3.14-1, page 3-55b--Existing detection zone 85 (NSEB Corridor, 40 feet Level) has been added to provide fire detection for portions of redundant systems important to safe shutdown as described in the 1985 Rancho Seco FHAR Update. See fire are 85. (NSHC No. 1) . T
12. Table 3.14-1, page 3-55c--Existing detection zone 87 (NSEB Com-puter Room B) has been added to provide fire detection for por-tions of redundant systems important to safe shutdown as described in the 1985 Rancho Seco FHAR update. See fire area 87. (NSHC No.

1)

13. Table 3.14-1, page 3-55c--Existing detection zone 89 (NSEB Computer Room A) has been added to provide fire detection for portions of redundant systems important to safe shutdown as des-cribed in the 1985 Rancho Seco FHAR update. See fire area 89.

(NSHC No. 1)

14. Table 3.14-1, page 3-55c--New detection zone 104 (Technical Sup-port Center) has been added to provide fire detection for portions of redundant systems important to safe shutdown as described in the 1985 Rancho Seco FHAR update. See fire area 2. (NSHC No. 1)
15. Table 3.14-1, page 3-55c--New detection zone 109 (Chemical Lab Area--Auxiliary Building) has been added to provide fire detection for portions of redundant systems important to safe shutdown as described in the 1985 Rancho Seco FHAR update. See fire area RT1.

(NSHC No. 1) -

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'16.' Tabl$ 3.14-1, pagn 3-55c--New detection zono 110 (Auxiliary Feed-water Pump Area) has been added to provide fire detection for por-tion of redundant systems important to safe shutdown as described in the 1985 Rancho Seco FHAR update. See fire area 69. (NSHC No.

1) ,
17. Specification 3.14.3.1, pages 3-56, 3-56b, and 3-56c--Specifica-tion 3.14.3.1 has been reformatted to refer to Table 3.14-3 which provide a list of water suppression zones required to be operable.

The area location titles and zone designations have been revised to be consistent with the titles and zone designations used on the control room displays. (NSHC No. 2)

18. Table 3.14-2, page 3-56b--Existing water suppression zones 5 (South East Uncontaminated Area--Turbine Deck, Auxiliary Build-ing), 6 (North West Uncontaminated Area--Turbine Deck, Auxiliary Building), and 7 (Contaminated Area--Turbine Deck, Auxiliary Building) have been added to provide fire suppression for portions of redundant systems important to safe shutdown as described in the 1985 Rancho Seco FHAR update. See fire area RT1. (NSHC No.

1)

19. Table 3.14-2, page 3-56b--Existing water suppression zones (Mez-zanine Level--Turbine Building), 31 (Auxiliary Lube Oil Area--

Grade Level, Turbine Building), 33 (Hydrogen Sealed Oil Unit), and 35 (Main Feed pump Area) have been added to provide fire suppres-sion for portions of redundant systems important to safe shutdown' as described in the 1985 Rancho Seco FHAR update. See fire area

71. (NSHC No. 1)
20. Table 3.14-2, page 3-56b--Existing water suppression zone 18 (Air Condition Equipment Room-Mezzanine Level, Auxiliary Building) has been added to provide fire suppression for portions of redundant systems important to safe shutdown as described in the 1985 Rancho Seco FHAR update. See fire area RGl. (NSHC No. 1)
21. Table 3.14-2, p3ge 3-56b--Existing water suppression zone 19 (Com-munications Rochi--Mezzanine Level, Auxiliary Building) has been added to provide fire suppression for portions of redundant sys-tems important to safe shutdown as described in the 1985 Rancho Seco FHAR update. See fire areas 27 and 28. (NSHC No. 1)
22. Table 3.14-2, page 3-56c--Existing water suppression zone 47 (Pipe Penetration Area--Basement Level, Auxiliary Building) has been added to provide fire suppression for portions of redundant systems important to safe shutdown as described in the 1985 Rancho Seco FHAR update. See fire area RBl. (NSHC No. 1)
23. Table 3.14-2, page 3-56c--Existing water suppression zone 83 (NSEB-Corridor, 1 foot Level) has been added to provide fire suppression for portions of redundant systems important to safe shutdown as described in the 1985 Rancho Seco FHAR update. See fire area 83.

(NSHC No. 1) 3

24. Table 3.14-2, page 3-56c--Existing water suppression zona 85 (NSEB Corridor, 40 feet Level) has been added to provide fire suppression for portions of redundant systems important to safe shutdown as described in the 1985 Rancho Seco FHAR update. Se's fire area 85.

(NSHC No. 1)

25. Table 3.14-2, page 3-56c--Existing water suppression zone 87 (NSEB Computer Room B) has been added to provide fire suppression for portions of redundant systems important to safe shutdown as des-cribed in the 1985 Rancho Seco FHAR update. See fire area 87.

(NSHC No. 1)

26. Table 3.14-3, page 3-56c--Existing watera suppression zone 89 (NSEB Computer Room A) has been added to provide fire suppression for portions of redundant systems important to_ safe shutdown as described in the 1985 Rancho Seco FHAR update. See fire area 89.

(NSHC No. 1)

27. Specification 3.14.4.2, pages 3-56, 3-56d, and 3-56e--Specifica-tion 3.14.4.2 has been reformatted to refer to Table 3.14-4 which provides a list of carbon dioxide suppression zones required to be operable. The area location titles and zone designations have been revised to be consistent with the titles and zone designa-tions used on the control room display. (NSHC No. 2)
28. Table 3.14-3, page 3.56d--Existing carbon dioxide suppression zone 11 (West Battery Room--Mezzanine Level, Auxiliary Building) has '

been added to provide fire suppression for portions of redundant systems important to safe shutdown as described in the 1985 Rancho Seco FHAR update. See fire area 15. (NSHC No. 1)

29. Table 3.4-3, page 3-55e--Existing carbon dioxide suppression zones 53-54 (Turbine Area) have been added to provide fire suppression for portions of redundant systems important to safe shutdown as described in the 1985 Rancho Seco FHAR update. See fire area 71.

(NSHC No. 1)

30. Table 3.14-3, page 3-55e--Existing carbon dioxide suppression zone 1 79 (NSEB Battery GB) has been added to provide fire suppression for portions cWE redundant systems important to safe shutdown as described in the 1985 Rancho Seco FHAR update. See fire area 79.

l' (NSHC No. 1)

31. Table 3.14-3, page 3-55e--Existing carbon dioxide suppression zone i

80 (NSEB Battery GA) has been added to provide fire suppression for portions of redundant systems important to safe shutdown as i

described in the 1985 Rancho Seco FHAR update. See f re area 80.

l (NSHC No. 1) .

32. Specification 3.14.5.1, pages 3-56a 3-57a, 3-57a and 3-57b--

Specification 3.14.5.1 has been reformatted to place the list of required hydrants in Table 3.14-4. (NSHC No. 2) The hose stations l

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33. Table 3.14-4, page 3-57a--Existing NSEB Hose Stations FpHS-N-005 and FPHS-N-006 (Third Floor Corridor) have been added to provide fire i suppression for portions of redundant systems important to safe shutdown as described in the 1985 Rancho Seco FHAR update. See fire area 85. (NSHC No. 1)
34. Table 3.14-4, pages 3-57a and 3-57b--Existing Turbine Building Hose Stations (6 hose stations per level with a total of 18 hose stations) have been added to provide fire suppression for portions of redundant systems important to safe shutdown as described in

, the 1985 Rancho Seco FHAR update. See fire area 71. (NSHC No. 1)

35. Specification 3.14.6.1, page 3-58--Specification 3.14.6.1 has been revised to require all fire rated assemblies separating safety-related areas or separating portions of redundant systems important to safe shutdown within a fire area to be operable. The 1985 Rancho Seco FHAR update is based on separating portions of redundant systems important to safe shutdown within a fire area and this specification has been revised to be consistent with the FHAR.

(NSHC No. 2)

36. Bases, pages 3-58 and 3-59--The bases have been revised to be consistent with the revised specifications and the method used in the 1985 Rancho Seco FHAR update. (NSHC No. 2)
37. Specification 6.9.5.E, pages 6-12f and 6-12q--The special re- .

porting requirement of item E has been revised to be consistent with the reporting requirements of technical specification 3.14.

(NSHC No. 2) t 5

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