ML20101L199

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Amends 115 & 77 to Licenses NPF-39 & NPF-85,respectively, Revising TS 3.6.1.8, Drywell & Suuppression Chamber Purge Sys, by Increasing Drywell & Suppresion Chamber Purge Sys Operating Time Limit from 90 to 180 H Each 365 Days
ML20101L199
Person / Time
Site: Limerick  Constellation icon.png
Issue date: 03/29/1996
From: Stolz J
Office of Nuclear Reactor Regulation
To:
Philadelphia Electric Co
Shared Package
ML20101L203 List:
References
NPF-39-A-115, NPF-85-A-077 NUDOCS 9604030314
Download: ML20101L199 (10)


Text

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.4 UNITED STATES

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I,j NUCLEAR REGULATORY COMMISSION j

o WASHINGTON, D.C. 2006tKm01 PHILADELPHIA ELECTRIC COMPANY DOCKET NO. 50-352 LIMERICK GENERATING ETATION. UNIT 1 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No.115 License No. NPF-39 1.

The Nuclear Regulatory Commission (the Comission) has found that:

A.

The application for amendment by Philadelphia Electric Company (the licensee) dated December 22, 1995, complies with the standards and t

requirements of the Atomic Energy Act of 1954, as amended (the Act),

and the Commission's rules and regulations set forth in 10 CFR Chapter I; B.

The-facility will operate in conformity with the application, the i

provisions of the Act, and the rules and regulations of the Commission; C.

There is reasonable assurance (1) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commission's regulations; D.

The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E.

The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commission's regulations and all applicable requirements have been satisfied.

9604030314 960329 PDR ADOCK 05000352 p

PDR

l 2.

Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment, and paragraph 2.C.(2) of Facility Operating License No. NPF-39 is hereby amended to read as follows:

Technical Soecifications The Technical Specifications contained in Appendix A and the Environmental Protection Plan contained in Appendix B, as revised through Amendment No. 115

, are hereby incorporated into this license.

Philadelphia Electric Company shall operate the facility in accordance with the Technical Specifications and the Environmental Protection Plan.

l 3.

This license amendment is effective as of its date of issuance, and shall be implemented within 30 days.

FOR THE NUCLEAR REGULATORY COMMISSION r

i 4 n. Stolz, Director,

[FojectDirectorateI-Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation

Attachment:

Changes to the Technical Specifications Date of Issuance: March 29, 1 ho

ATTACHMENT TO LICENSE AMENDMENT N0.115 FACILITY OPERATING LICENSE NO. NPF-39 DOCKET NO. 50-352 Replace the following pages of the Appendix A Technical Specifications with the attached pages.

The revised pages are identified by Amendment number and contain vertical lines indicating the area of change.

l Remove Insert 3/4 6-11 3/4 6-11 B 3/4 6-2 B 3/4 6-2 m

(gtIAINMENT SYSTEMS DRYWELL AND SUPPRESSION CHAMBER PURGE SYSTEM LIMITING CONDITION FOR OPERATION 3.6.1.8 The drywell and suppression chamber purge system may be in operation l

for up to 180 hours0.00208 days <br />0.05 hours <br />2.97619e-4 weeks <br />6.849e-5 months <br /> each 365 days with the supply and exhaust isolation valves l

l in one supply line and one exhaust line open for inerting, deinerting, or pressure control.*

APPLICABILITY:

OPERATIONAL CONDITIONS 1, 2, and 3.

ACTION:

i a.

With a drywell and/or suppression chamber purge supply and/or exhaust isolation valve open, except as permitted above, close the valve (s) within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

SMREEILLANCE RE0VIREMENTS 1

4.6.1.8 Before being opened, the drywell and suppression chamber purge supply and exhaust butterfly isolation valves shall be verified not to have been open for more than 180 hours0.00208 days <br />0.05 hours <br />2.97619e-4 weeks <br />6.849e-5 months <br /> in the previous 365 days.*

l J

  • Valves open for pressure control are not subject to the 180 hour0.00208 days <br />0.05 hours <br />2.97619e-4 weeks <br />6.849e-5 months <br /> per 365 day l

limit provided the 1-inch /2-inch bypass line is being utilized.

LIMERICK - UNIT 1 3/4 6-11 Amendment No. 115

1 o

CONTAINMENT SYSTEMS BASES 3/4.6.1.5 PRIMARY CONTAllMENT STRUCTURAL INTEGRITY This limitation ensures that the structural integrity of the cantainment will be maintained comparable to the original design standards for the life of the unit. Structural integrity is required to ensure that the cor.tainment will i

withstand the maximum calculated pressure in the event of a LOCA. A visual inspection in conjunction with Type A leakage tests is sufficient to demonstrate this capability.

3/4.6.1.6 DRYWELL AND SUPPRESSION CHAMBER INTERNAL PRESSURE The limitations on drywell and suppression chamber internal pressure ensure that the calculated containment peak pressure does not exceed the design pressure of 55 psig during LOCA conditions or that the external pressure differ-ential does not exceed the design maximum external pressure differential of 5.0 psid. The limit of - 1.0 to + 2.0 psig for initial containment pressure will limit the total pressure to s 44 psig which is less than the design pressure and is consistent with the safety analysis.

3/4.6.1.7 DRYWELL AVERAGE AIR TEMPERATURE The limitation on drywell average air temperature ensures that the con-tainment peak air temperature does not exceed the design temperature of 340'F during steam line break conditions and is consistent with the safety analysis.

3/4.6.1.8 DRYWELL AND SUPPRESSION CHAMBER PURGE SYSTEM The drywell and suppression chamber purge supply and exhaust isolation valves are required to be closed during plant operation except as required for

'inerting, deinerting and pressure control. The 180 hours0.00208 days <br />0.05 hours <br />2.97619e-4 weeks <br />6.849e-5 months <br /> per 365 day limit on l

purge valve operation is imposed to protect the integrity of the SGTS filters.

Analysis indicates that should a LOCA occur while this pathway is being utilized, the associated pressure surge through the (18 or 24") purge lines will adversely affect the integrity of SGTS. This limit is not imposed, however, on the subject valves when pressure control is being performed through the 2-inch bypass line, since a pressure surge through this line does not threaten the OPERABILITY of SGTS.

i l

LIMERICK - UNIT 1 B 3/4 6-2 Amendment No. 29,106.115 i

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UNITED STATES E.

NUCLEAR REGULATORY COMMISSION E

f WASHINGTON, D.C. 2066db-0001 Y

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PHILADELPHIA ELECTRIC COMPANY DOCKET NO. 50-353 LIMERICK GENERATING STATION. UNIT 2 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No.77 l

License No. NPF-85 1.

The Nuclear Regulatory Comission (the Commission) has found that:

A.

The application for amendment by Philadelphia Electric Company (the licensee) dated December 22, 1995, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act),

and the Commission's rules and regulations set forth in 10 CFR l

Chapter I; i

B.

The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Comission; C.

There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Comission's regulations; D.

The issuance of this amendment will not be inimical to the comon defense and security or to the health and safety of the public; and E.

The issuance of this amendment is in accordance with 10 CFR Part 51 of the Comission's regulations and all applicable requirements have been satisfied.

6.

2.

Accordingly, the license is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment, l

and paragraph 2.C.(2) of Facility Operating License No. NPF-85 is hereby amended to read as follows:

Technical Specifications The Technical Specifications contained in Appendix A and the i

Environmental Protection Plan contained in Appendix B, as revised l

through Amendment No. 77

, are hereby incorporated into this license.

l Philadelphia Electric Company shall operate the facility in accordance with the Technical Specifications and the Environmental Protection Plan.

3.

This license amendment is effective as of its date of issuance, and shall be implemented within 30 days.

FOR THE NUCLEAR REGULATORY COMMISSION

[ohD..',tolz,Direcor PS6 ject Directorate I-2 l

Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation l

Attachment:

Changes to the Technical Specifications Date of Issuance: March 29, 1996 I

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I 1

l

a ATTACHMENT TO LICENSE AMENDMENT NO.77 FACILITY OPERATING LICENSE NO. NPF-85 DOCKET NO. 50-353 Replace the following pages of the Appendix A Technical Specifications with the attached pages. The revised pages are identified by Amendment number and contain vertical lines indicating the area of change.

Remove Insert 3/4 6-11 3/4 6-11 B 3/4 6-2 B 3/4 6-2

j.

CONTAINMENT SYSTEMS ORYWELL AND SUPPRESSION CHAMBER PURGE SYSTEM LIMITING CONDITION FOR OPERATION 3.6.1.8 The drywell and suppression chamber purge system may be in operation i

for up to 180 hours0.00208 days <br />0.05 hours <br />2.97619e-4 weeks <br />6.849e-5 months <br /> each 365 days with the supply and exhaust isolation valves l

in one supply line and one exhaust line open for inerting, deinerting, or pressure control.*

APPLICABILITY:

OPERATIONAL CONDITIONS 1, 2, and 3.

ACTION:

With a drywell and/or suppression chamber purge supply and/or exhaust a.

isolation valve open, except as permitted above, close the valve (s) within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

SURVEILLANCE REQUIREMENTS 4.6.1.8 Before being opened, the drywell and suppression chamber purge supply and exhaust butterfly isolation valves shall be verified not to have been open for more than 180 hours0.00208 days <br />0.05 hours <br />2.97619e-4 weeks <br />6.849e-5 months <br /> in the previous 365 days.*

l i

  • Valves open for pressure control are not subject to the 180 hour0.00208 days <br />0.05 hours <br />2.97619e-4 weeks <br />6.849e-5 months <br /> per 365 day l

limit provided the 1-inch /2-inch bypass line is being utilized.

i i

i l

LIMERICK - UNIT 2 3/4 6-11 Amendment No. 77

4 CONTAINMENT SYSTEMS BASES l

3/4.6.1.5 PRIMARY CONTAIMENT STRUCTURAL INTEGRITY This limitation ensures that the structural integrity of the containment will be maintained comparable to the original design standards for the life of the unit. Structural integrity is required to ensure that the containment will withstand'the maximum calculated pressure in the event of a LOCA. A visual inspection in conjunction with Type A leakage tests is sufficient to demonstrate this capability.

3/4.6.1.6 DRYWELL AND SUPPRESSION CHAMBER INTERNAL PRESSURE The limitations on drywell and suppression chamber internal pressure ensure that the calculated containment peak pressure does not exceed the design i

pressure of 55 psig during LOCA conditions or that the external pressure differ-i ential does not exceed the design maximum external pressure differential of i

5.0 psid.

The limit of - 1.0 to + 2.0 psig for initial containment pressure i

will limit the total pressure to s 44 psig which is less than the design

{

pressure and is consistent with the safety analysis.

3/4.6.1.7 DRYWELL AVERAGE AIR TEMPERATURE 1

The limitation on drywell average air temperature ensures that the con-l tainment peak air temperature does not exceed the design temperature of 340*F j

during steam line break conditions and is consistent with the safety analysis.

s 3/4.6.1.8 DRYWELL AND SUPPRESSION CHAMBER PURGE SYSTEM i

The drywell and suppression chamber purge supply and exhaust isolation i

valves are required to be closed during plant operation except as required for i

inerting, deinerting and pressure control. The 180 hours0.00208 days <br />0.05 hours <br />2.97619e-4 weeks <br />6.849e-5 months <br /> per 365 day limit on l

i purge valve operation is imposed to protect the integrity of the SGTS filters.

j Analysis indicates that should a LOCA occur while this pathway is being utilized, j

the associated pressure surge through the (18 or 24") purge lines will adversely affect the integrity of SGTS. This limit is not imposed, however, on the subject valves when pressure control is being performed through the 2-inch bypass line, l

since a pressure surge through this line does not threaten the OPERABILITY of i

SGTS.

j i

1 LIMERICK - UNIT 2 B 3/4 6-2 Amendment No 51,77