ML20070D754

Rev to MNS Selected Licensee Commitments Manual, Section 16.9.5,changing Term Fire Barriers to Fire Rated Assemblies

ML20070D754
Person / Time
Site:	McGuire, Mcguire
Issue date:	06/30/1994
From:	DUKE POWER CO.
To:
Shared Package
ML20070D751	List: ML20070D749 ML20070D754
References
PROC-940630, NUDOCS 9407120266
Download: ML20070D754 (4)

Text

,

i McGuire Nuclear Station Selected Licensee Commitments List of Effective Pages PM Revision Date LOEP Tab L0EP 1 6/94 LOEP 2 01/94 LOEP 3 10/90 L0EP 4 1/92 LOEP 5 1/92 L0EP 6 6/94 L0EP 7 9/93 L0EP 8 12/93 LOEP 9 12/93 L0EP 10 9/93 Tab 16.0 16.0-1 16.0-2 Tab 16.1 16.1-1 Tab 16.2 16.2-1 3/91 16.2-2 5/91 16.2.-3 16.2-4 Tab 16.3 06/94 Page 1 9407120266 940705 PDR ADOCK 05000369 P PDR

4 Pagd Revision Date Tab 16.9 i 16.9-1 2/91 16.9-2 l l

16.9-3 16.9-4 16.9-5 Table 16.9-1 16.9-6 16.9-7 16.9-8 16.9-9 Table 16.9-2 8/90 Table 16.9-2 (cont'd) 16.9-10 6/94 16.9-11 6/94 16.9-12 12/90 16.9-13 16.9-14 Table 16.9-3 12/90 Table 16.9-3 (cont'd) 12/90 Table 16.9-3 (cont'd) 12/90 I Table 16.9-3. (cont'd) 12/90 ,

Table 16.9-3 (cont'd) 12/90 Table 16.9-3 (cont'd) )

6/94- l l

Page 6 l l

l 1

s' 16.9 AUXILIARY SYSTEMS FIRE PROTECTION SYSTEMS 16.9-5 FIRE RATED ASSEMBLIES COMMITMENT

---

,__- . _ .---_= = . _ _ _ _ _ _ _ _ _ _ _ _ _ _ __

All fire rated assemblies (walls, floora/ ceilings, cable tray enclosures and other fire barriers) separating redundant analyzed Post Fire Safe Shutdown Equipment or,

• Control Complex (i.e., Control Room, Cable Rooms and Battery Rooms) j from the remainder of the plant or, i

• safety from non-safety related areas or, J

• containment from non-containment areas, and all sealing devices (fire doors, fire windows , fire dampers, cable, piping and ventilation duct penetration seals) in fire rated assembly penetrations shall be OPERABLE.

APPLICABILITY: At all times.

REMEDIAL ACTION:

a. With one or more of the above required fire rated assemblies and/or sealing devices inoperable, within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> either establish a continuous fire watch on at least one side of the affected assembly, or verify the OPERABILITY of fire detectors on at least one side of the inoperable assembly and establish an hourly fire watch patrol.

TESTING REQUIREMENTSt

a. At least once per 18 months the above required fire rated assemblies and penetration sealing devices shall be verified j OPERABLE, by performing a visual inspection of

i. The exposed surfaces of each fire rated assembly, 1

11. Each fire window / fire damper /and associated hardware, and j I

111. At least 10% of each type of sealed penetration. If a seal i is found degraded to inoperable status, a visual inspection of an additional 10% of each type of sealed penetration j shall be made. This inspectlon process shall continue until l a los sample with no inoperable seals is found. Samples shall be selected such that each penetration seal will be inspected every 15 years.

I

b. Each of the above required fore doors shall be verified OPERABLE by inspecting the automatic hold-open, release and closing mechanisms and latches at least once per 6 months, and by j verifying: '

i. That each unlocked fire door without electrical supervision is closed at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />,

11. That doors with automatic hold-open and release my hanisms are free to obstructions at least once per 24 hc ter, and -

performing a functional test at least once per 18 months, 16.9-10 06/94

~

s

t* ,

e' ' '

111. That each locked closed fire door is closed at least once per 7 days, and iv. The OPERABILITY of the Fire Door Supervision System for each electrically supervised fire door by performing a TRIP ACTUATING DEVICE OPERATIONAL TEST at least once per 31 days.

REFERENCES:

1) McGuire JSAR, Chapter 9.5.1

2) McGuire SER Supplement 2, Chapter 9.5.1 and Appendix D

3) McGuire SER Supplement 5, Chapter 9.5.1 and Appendix B

4) McGuire Fire Protection Review, as revised

5) McGuire SER Supplement 6, Chapter 9.5.1, and Appendix C

6) McGuire Facility Operation Licenses, Unit 1 License Condition C.(4) and Unit 2 License Condition C.(7)

BASES:

The functional integrity of the fire rated assemblies, including associated penetration seals, ensures that fires will be confined or adequately retarded so that the following criteria is achieved:

• Fire will not damage redundant analyzed Post Fire Safe Shutdown equipment,

• Fire will not spread from the balance of plant to the Control Complex,

• Fire will not spread from non-safety related areas to safety related areas.

• Fire will not spread from non-containment areas to containment areas.

The fire related assemblies and associated penetration seals are a passive element in the facility fire protection program and are subject to periodic inspections.

Fire rated assemblies, including associated penetration seals (fire doors, fire windows, fire dampers, cable, piping and ventilation duct penetration seals) are considered operable when the visually observed condition is not degraded to a point that the assembly cannot perform the function that is intended. For fire rated assemblies that are questionable, an evaluation shall be performed to determine the cause of any identified abnormal change in appearance or abnormal degradation and the effect of this change or, the ability of the fire rated assembly to perform its function.

During periods of time when a fire rated assembly is not operable, eithers. (1) a continuous fire watch is required to be maintained in the vicinity of the affected barrier, or (2) the fire detectors on at least one side of the affected barrier must be verified OPERABLE and an hourly fire watch patrol established until the barrier is restored to operable status.

This Selected Licensee Commitment is part of the McGuire Fire Protection Program and therefore subject to the provisions of McGuire Facility Operating License Conditions C.(4) [ Unit 1] and C.(7) [ Unit 2).

16.9-11 06/94

~~rn.

.