ML080240120

Tech Spec Pages for Amendments 258 and 257 Regarding Replacement of Main Control Room and Emergency Switchgear Room Air-Conditioning System Chilled Water Piping

ML080240120
Person / Time
Site:	Surry
Issue date:	01/23/2008
From:	NRC/NRR/ADRO/DORL/LPLII-1
To:
Lingam, Siva NRR/DORL 415-1564
Shared Package
ML073480281	List: ML073480287 ML080240120
References
TAC MD4622, TAC MD4623
Download: ML080240120 (7)

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4. This renewed license is effective as of the date of issuance and shall expire at midnight on May 25, 2032.

FOR THE NUCLEAR REGULATORY COMMISSION original signed by:

Samuel J. Collins, Director Office of Nuclear Reactor Regulation

Attachment:

Appendix A, Technical Specifications Date of Issuance: March 20, 2003 Renewed License No. DPR-32 Amendment No'. '258

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VPR-37 Amendment No. 257 (3) Actions to minimize release to include consideration of:

a. Water spray scrubbing

b. Dose to onsite responders R. As discussed in the footnote to Technical Specifications 3.23.C.2.a.1 and 3.23.C.2.b.1, the use of temporary 45-day and 14-day allowed outage time extensions to permit replacement of the Main Control Room and Emergency Switchgear Room Air Conditioning System chilled water piping shall be in accordance with the basis, risk evaluation, equipment unavailability restrictions, and compensatory actions provided in the licensee's submittal dated February 26, 2007 (Serial No. 07-0109) and in the associated supplemental transmittals, as approved by the NRC Safety Evaluation.

4. This renewed license is effective as of the date of issuance and shall expire at midnight on January 29, 2033.

FOR THE NUCLEAR REGULATORY COMMISSION original signed by:

Samuel J. Collins, Director Office of Nuclear Reactor Regulation

Attachment:

Appendix A, Technical Specifications Date of Issuance: March 20, 2003 Renewed License No. DPR-37 Amendment No.

257

TS 1.0-2

5.

REACTOR CRITICAL When the neutron chain reaction is self-sustaining and keff= 1.0.

6.

POWER OPERATION When the reactor is critical and the neutron flux power range instrumentation indicates greater than 2% of rated power.

7.

REFUELING OPERATION Any operation involving movement of core components when the vessel head is unbolted or removed.

D.

OPERABLE A system, subsystem, train, component, or device shall be operable or have operability when it is capable of performing its specified function(s). Implicit in this definition shall be the assumption that all necessary attendant instrumentation, controls, normal and* emergency electrical power sources, cooling or seal water, lubrication or other auxiliary equipment that are required for the system, subsystem, train, component or device to perform its function(s) are also capable of performing their related support function(s). The system or component shall be considered to have this capability when: (I) it satisfies the limiting conditions for operation defined in Section 3, and (2) it has been tested periodically in accordance with Section 4 and meets its performance requirements.

E.

PROTECTIVE INSTRUMENTATION LOGIC

1.

ANALOG CHANNEL An arrangemenrt of components and modules as required to generate a single protective action digital signal when required by a unit condition. An analog channel loses its identity when single action signals are combined.

• For the purpose of performing Technical Specification-required surveillances that render an emergency diesel generator inoperable, the definition of OPERABLE for the air handling units on the operating chilled water loop is modified to require the normal or emergency electrical power source to be capable of performing its related support function. This footnote shall only apply to TS 3.23.C.2.a. 1, TS 3.23.C.2.b. 1, and TS 3.23.C.2.c.1 during the 45-day allowed outage time extensions to permit replacement of the Main Control Room and Emergency Switchgear Room Air Conditioning System chilled water piping.

AmendmentNos. 258, 257

TS 3.23-2

2. Air Handling Units (AHUs)

a. Unit 1 air handling units, 1-VS-AC-1, I-VS-AC-2, l-VS-AC-6, and 1-VS-AC-7, must be OPERABLE whenever Unit I is above COLD SHUTDOWN.

1. If either any single Unit I AHU or two Unit 1 AHUs on the same chilled water loop (I-VS-AC-1 and 1-VS-AC-7 or 1-VS-AC-2 and 1-VS-AC-6)* become inoperable, restore operability of the one inoperable AHU or two inoperable AHUs within seven (7),days or bring Unit 1 to HOT SHUTDOWN within the next six (6) hours and be in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

2. If two. Unit I AHUs on different chilled water loops and in different air conditioning zones (1-VS-AC-1 and 1-VS-AC-6 or I-VS-AC-2 and 1-VS-AC-7) become inoperable, restore operability of the two inoperable AHUs within seven (7) days or bring Unit 1 to HOT SHUTDOWN within the next six (6) hours and be in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

3. If two Unit I AHUs in the same air conditioning zone (1 -VS-AC-I and I-VS-AC-2 or I-VS-AC-6 and 1-VS-AC-7) become inoperable, restore operability of at least one Unit I AHU in each air conditioning zone (1-VS-:AC-1 or I-VS-AC-2 and 1-VS-AC-6 or I-VS-AC-7) within one (1) hour or bring Unit 1 to HOT SHUTDOWN within the next six (6) hours and be in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

4. If more than two Unit 1 AHUs become inoperable, restore operability of at least one Unit I AHU in each air conditioning zone (I-VS-AC-1 or 1-VS-AC-2 and 1 -VS-AC-6 or.-VS-AC-7) within one (1) hour or bring Unit 1 to HOT SHUTDOWN within the next six (6) hours and be in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

b. Unit 2 air handling units, 2-VS-AC-8, 2-VS-AC-9, 2-VS-AC-6, and 2-VS-AC-7 must be OPERABLE whenever Unit 2 is above COLD SHUTDOWN.

I. if either any single Unit 2 AHU or two Unit 2 AHUs on the same chilled water loop (2-VS-AC-7 and 2-VS-AC-9 or 2-VS-AC-6 and 2-VS-AC-8)* become inoperable, restore operability of the one inoperable AHU or two inoperable

• 'AHUs within seven (7) days or bring Unit 2 to HOT SHUTDOWN within the next six (6) hours and be in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

The requirements of TS 3.23.C.2.a. I and TS 3.23.C.2.b.1 may be temporarily suspended according to the limitations noted in items 1, 2, 3 and 4 below for the purpose of replacement of the Main Control Room (MCR) and Emergency Switchgear Room (ESGR) Air Conditioning System (ACS) chilled water piping. The allowed outage time extensions specified in items 1, 2, 3 and 4 of this footnote shall not exceed 24 months beginning with entry into the first temporary extension. Each extension shall be limited to a one-time use which ends when the affected MCR and ESGR ACS components are returned to OPERABLE status. Concurrent use of more than one allowed outage time extension is not permitted.

1) The time period to accommodate replacement of the chilled water loop C piping in the MCR and the ESGR shall not exceed 45 days.

2) The time period to accommodate replacement of the chilled water loop A piping in the MCR and the ESGR shall not exceed 45 days.

'3) The time period to accommodate replacement of the chilled water piping in the Mechanical Equipment Room #3 (MER-3) associated with chiller I-VS-E-4A shall not exceed 14 days.

4) The time period to accommodate replacement of the chilled water piping in the MER-3 associated

-with chiller I-VS-E-4C shall not exceed 14 days.

AmendmentNos.

258, 257

TS 3.23-6 The exterior surface of the MCR and ESGR ACS chilled water piping located in the ESGR, the MCR, and MER-3 is exhibiting general corrosion. For the purpose of replacing the MCR and ESGR ACS chilled water piping, temporary 45-day and 14-day allowed outage times (AOTs) are provided, as discussed in the footnotetoTechnical Specifications 3.23.C.2.a.1 and 3.23.C.2.b.1. The basis for and the risk evaluation of the temporary AOTs, as well as equipment unavailability restrictions, and compensatory actions, are provided in the licensee's submittal dated February 26, 2007 (Serial No. 07-0109). Four entries into the temporary AOTs are permitted in a 24-month time span. The 24-month time frame begins upon entry into the first temporary AOT. The four entries accommodate replacement of 1) the chilled water loop C `iping in the ESGR and the MCR (45-day AOT), 2) the chilled water loop A piping in the ESGR and the MCR (45-day AOT), 3) the chilled water piping in MER-3 associated with chiller 1-VS-E-4A (14-day AOT), and 4) the chilled water piping in MER-3 associated with chiller 1-VS-E-4C (14-day AOT). Each AOT extension shall be limited to a one-time use which-ends when the affected MCR and ESGR ACS components are returned to OPERABLE status. Concurrent use of more than one allowed outage time extension is not permitted. Upon completion of the work associated with the fourth temporary AOT, the footnote is no longer applicable.

AmendmentNos. 258, 257