ML20006E156

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Proposed Tech Specs Adding Two Smoke Detectors & Room Numbers to Table 3.3.7.9-1 as Well as Renaming Room Described in Table 3.3.7.9-1 as Result of Design Changes
ML20006E156
Person / Time
Site: Grand Gulf Entergy icon.png
Issue date: 02/09/1990
From:
SYSTEM ENERGY RESOURCES, INC.
To:
Shared Package
ML20006E155 List:
References
NUDOCS 9002220198
Download: ML20006E156 (6)
v • d • e


Text

A in .. - Attachment 2 to AECM-90/0011 Page 1 of 3 l

A. SUBJECT

1. NPE 89/01 Addition of two smoke detectors to Table 3.3.7.9-1 2.- NPE 89/02 Rename room in Table 3.3.7.9-1
3. Revised Technical Specification:
a. Fire Detection Instrumentation, Table 3.3.7.9-1, Pages 3/4 3-81 and 3/4 3-86 B. DISCUSSION
1. Table 3.3.7.9-1 is being revised to reflect a design change to construct a non-safety related, permanent facility to house snubber test equipment and personnel necessary to test snubbers in accordance with Technical Specification 3/4.7.4. This new, totally enclosed facility will be located in Fire Zone 1A519 of the Auxiliary Building at elevation 185'-0" and will be partitioned into a " Snubber Test Room" and a " Snubber Test Control Room." Attachment 3 provides a general layout of the facility. The Snubber Test Facility will not house any safety-related equipment; however, it will be located within Fire Area 19 which contains some safety-related equipment. Since this enclosure could effectively isolate a fire occurring inside the Snubber Test Facility from fire detectors which are exterior to the facility for an indeterminate period of time, this design change includes the addition of a detector in both the " Snubber Test Control Room" and the " Snubber Test Room." Therefore, Table 3.3.7.9-1 is being revised to reflect the additional instruments in Detection Zone 2-9.

2.- Table 3.3.7.9-1 is also being revised to reflect renovation of the 93'-0" elevation of the Control Building, north of central corridor 0C115. The renovation will provide better space utilization and facility upgrade to accommodate the personnel needs of the GGNS Health Physics organization. As a result of this renovation, the room name for Room Number 0C103 will be changed from " Emergency Laundry Room" to "HP Checkout."

l C. JUSTIFICATION l

1. The new, permanent Snubber Test Facility will be nonsafety-related and will not house any safety-related equipment. To minimize impact on fire protection, all construction and finishing materials will be  ;

non-combustible as defined in the Fire Hazards Analysis. The  ;

facility will also be provided with a smoke detector in each of the two rooms to provide early warning and thus reduce the potential for fire damage to safety-related equipment adjacent to the Snubber Test  !

Facility.

2. The addition of two smoke detectors, along with accessibility to .

existing manual hose streams and portable fire extinguishers, will  !

provide adequate fire protection capability for this facility.

^

A9100502/SNLICFLR - 5 9002220198 900209 PDR ADOCK 05000416 P PDC

, . Attachment 2 to AECM-90/0011 Page 2 of 3

3. The renovation of the 93'-0" Elevation of the Control Building will not result in the removal of any fire detection instrumentation.

The level of smoke detection capability will not be reduced by the renovation. The renovation will not affect any fire area boundaries as described in Revision 3 of the Fire Hazards Analysis. Therefore, the current level of fire protection will not be reduced.

D. NO SIGNIFICANT HAZARDS CONSIDERATIONS SERI is proposing with this amendment request a revision to TS Table 3.3.7.9-1 which would:

1. Add two smoke detectors and rooms to reflect the construction of a new Snubber Test Facility.
2. Revise the room name for Room Number 0C103 from " Emergency Laundry Room" to "HP Checkout" due to renovation of the Control Building.

The Commission has provided standards for determining whether a no significant hazards consideration exists as stated in 10CFRSO.92(c). A proposed amendment to an operating license involves no significant hazards consideration if operation of the facility in accordance with the proposed amendment would not: (1) involve a significant increase in the-probability or consequences of an accident previously evaluated; or (2) create the possibility of a new or different kind of accident from any accident previously evaluated; or (3) involve a significant reduction in a margin of safety.

SERI has evaluated the no significant hazards considerations in its request for a license amendment. In accordance with 10CFR50.91(a), SERI is providing the analysis of the proposed amendment against the three standards in 10CFR50.92:

1. No significant increase in the probability or consequences of an accident previously evaluated results from this change.
a. The proposed change expands an existing smoke detection zone to monitor two new rooms and their respective fire hazards.

Consequently, the level of smoke detection capability will not be reduced. The analysis of safe shutdown in the event of a fire (UFSAR Appendix 9C) is not adversely affected by this change,

b. The renovation of the 93'-0" Elevation of the Control Building will not add, remove, or relocate any fire detection instrumentation identified in Technical Specification Table 3.3.7.9-1. The proposed change renames an existing room and does not reduce the level of smoke detection capability. The analysis of safe shutdown in the event of a fire (UFSAR Appendix
90) is not adversely affected by this change.

i

c. Therefore, there is no increase in the probability or consequences of a previously analyzed accident due to this change.

A9100502/SNLICFLR - 6 e J

9 s.

Attachment 2 to AECM-90/0011

(

Page 3 of 3 >

1

2. This change would not create the possibi'lity of a new or different kind of accident from any previously evaluated, t  :

The proposed changes do not postulate fires in areas of the

a. '

plant in which fires were not previously postulated and no new f_ or different failure modes are created. The first change will  !

expand an existing smoke detection zone to monitor two new rooms .

t and their respective fire hazards. The second change does not add, remove or relocate any fire detection instrumentation ,

identified in Technical Specification Table 3.3.7.9-1 but renames a room identified in the Table, ,

e

b. Therefore, the possibility of a new or different kind of I accident from any previously evaluated is not created.
3. This change would not involve a significant reduction in the margin .

of safety.

I a. The bases for Technical Specification 3.3.7.9, as it relates to the proposed changes, is to ensure availability of adequate warning capability for prompt detection of fires. Consequently, prompt detection of fires will reduce the potential for damage  ;

to safety-related equipment,

b. Expanding Detection Zone 2-9 to monitor two newly created rooms and their respective fire hazards will maintain the existing

identified in Technical Specification Table 3.3.7.9-1 will not  !

reduce the present level of fire detection and does not compromise the bases for this Technical Specification. .

c. Therefore, this proposed change will not involve a significant  !

reduction in the margin of safety. '

Therefore, based on the above evaluation, operation in accordance with the proposed amendment involves no significant hazards considerations, t

r A9100502/SNLICFLR - 7 L

.- N P r. s s / oi so f*fa $W h l k M8bieM'm 48f.m l

. TABLE 3.3.7.9-1 (Continued) 87/>6 %,dahd MayM,ltlT l FIRE DETECTION INSTRUMENTATION

)

MINIMUM INSTRUMENTS OPERABLE

  • l H AT ll)

ROOM ELEV ROOM NAME F E SM0 Kell}

} M

7. Zone 2-8 27/0 1A401 166' Northeast Corridor 1A402 166' Steam Tunnel Roof i L 1A403 166'- Southeast Corridor i 1A404 166' Unassigned Area 1A405 166' Containment Vent.

Equip. Room 1A406 166' Containment Exhaust Filter Rm.

1A407 166' MCC Area 0/2(C03 )

1A410 166' MCC Area 0/2(C0a) 1A417 166' NorthCorridor(Partial) l 1A420 166' SouthCorridor(Partial) 1A424 166' Set _Doyn Area (Parti _al)__ _

l l- 8. Zone 2-9 liA 145 tAsl96 138,'Ewbber-Te&+

symbbsr TsaiAcom Contnl Room

  • 1 _

! ,1A519 185' Storage Area l 1A524 195' Platform '

1A527 185' Load Center Area 1A529 185' FPC & CU Rm.

1A538 185' Platform

9. Zone 2-13 31/0' 1A602 -208' Storage Area 1A603 208' Passage 1A604 208' Fuel Handling Area IA606 245' HVAC Equip. Area
10. Zone 2-14 17/0 1A114 93' Fan Coil Area (Partial) 1A115 93' Piping Penetration Rm.

1A116 93' Piping Penetration Rm. ,

1A117 93' Misc. Equip. Area  !

(Partial) 1A118 93' RHR "C" Pump Room 1A119 93' LPCS Pump Room 1A120 93' CCW Pump & Heat Ex. Rm.

1A122 103' SouthCorridor(Partial) 1A123 103' North Corridor (Partial)

11. Zone 2-15 1/0 1A539 185' Cable Chase GRAND GULF-UNIT 1 3/4 3*S6 Amendment No. 42 3 t

. NPE $9/0,t. .

i

' Poe. c.wo+.d +m be dele.tedin AEcm  !

87/oo%/ded NYM,1987 TABLE 3.3.7.9-1 .

FIRE DET N NTATION  !

MINIMUM INSTRUMENTS OPERABLE" f ll}  !

. INSTRUMENT LOCATION HEAT FgE SM0 Kell)

a. CONTAINMENT SUILDING #

@) D/TJ M  !

1. Return Duct Mounted Detectors 3/0

_ ROOM ELEV ROOM NAME  !

b. CONTROL BUILDING
1. Zone 1-3 -- - -

12/0

. Gue2 ' is7 H.P. chukoht) ,

== r  : , ;. r.;, 1. .. .; , L .  :

0C109 93' Decontamination Area i 0C115 93' Corridor  !

l 0C116 93' Hot Machine Shep 0C117 93' Corridor 0C128 93' Hot Water Heater Rm.

j. 2. Zone 1-4 12/0 l

OC201 111' Stairvell 0C202 111' Div. I Swgr. Rs. 0/13(C0e) p I OC207 111' Div. I Battery Rm.

p i i

(X/Y): X - is number of Function A (early warning fire detection and notification only) instruments. .

Y - is number of Function B (actuation of fire suppression systems i and early warning and notification) instruments.  !

  1. The fire detection instruments located within the primary containment are not required to be OPERABLE during the performance of Type A Containment ,

Leakage Rate Tests.

l~ (1) Smoke and flame detectors provide only early warning capability with the '

exception of:

(a) Zone 1-27 detectors trip closed the door between the OC208/0C208A ,

Remote Shutdown panel rooms.

(b) Containment building return duct mounted detectors trip the '

containment cooler fans.

(c) Zone 1-11 and 1-13 detectors initiate the control building purge fan system. .

! (d) Control Room HVAC Intake Plenum Detectors trip the control room A/C units unless a control room emergency filtration system isolation mode automatic actuation signal is present.

GRAND GULF-UNIT 1 3/4 3-81 Amendment No. 42;-

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