ML19343A912

Proposed Amend 68,Revision 1,to Tech Specs Re Fire Suppression Sys

ML19343A912
Person / Time
Site:	Rancho Seco
Issue date:	11/17/1980
From:	SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:
Shared Package
ML19343A910	List: ML19343A907 ML19343A912
References
NUDOCS 8011240174
Download: ML19343A912 (13)

Text

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RANCHO SECO UNIT 1 TECHNICAL SPECIFICATIONS Limiting Conditions for Operation 3.14 FIRE SUPPRESSION 3.14.1 Instrumentation Specification 3.14.1.1 As a minimum, the fire detection Instrumentation for each fire detection zone shown in Table 3.14-1 shall be OPERABLE.

3.14.1.2 With the number of instruments OPERABLE less than required by the mini-mum Instruments OPERABLE requirement of Table 3.14-1:

a.

Within I hour establish a fire watch patrol to. Inspect the zone (s) with the inoperable instrument (s) at least once.per hour, unless

.the instrument (s) is located inside the containment, then inspect the containment at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> or monitor the contain-ment air temperature at least once per hour from recorder TJR-07 68 at the points listed below:

Point 01 Reactor Building Cooling Units A & B Air in Point 02 Reactor Building Cooling Units C & D Air in Point 12 Top of Reactor Shielding Point 13 Top of Reactor Shielding Point 16 Top of Reactor Building b.

Restore the Inoperable instrument (s) to OPERABLE status within fourteen (14) days; or c.

In lieu of any other report required by Specification 6.9, prepare and submit a Special Report to the Commissi6n pursuant to Speci-fication 6.9 5.E within the next 30 days outlining the action 68 taken, the cause of the inoperability and the plans and schedule for restoring,the instrument (s) to OPERABLE status.

3 14.2 Water System Spec i f i r.a t ion 3.14.2.1 The fire suppression water system shall be OPERABLE with:

a.

Two high-pressure. pumps each with'a capacity of 2000 gal / min with their discharge aligned to the fire suppression header.

b. -Two separate water supplies containing a minimum of 2,000,000 9allons each.

3-53 8011240 @,

Proposed Amendment No. 68, Rev. 1

RANCHO SECO UNIT I i

TECHNICAL SPECIFICATIONS Limiting Conditions for Operation 3 14.2.1 (continued) c.

An OPERABLE flow path capable of taking suction from the circu-lating water system and the Site Reservoir or the Folsom South Canal and transferring the water through distribution piping with OPERABLE sectionalizing control or isolation valves to the yard hydrant curb valves, the last valve ahead of the water 68 flow alarm device on each sprinkler or hose standpipe, and the last valve ahead of the deluge valve on each deluge or spray system required to be OPERABLE per Specifications 3.14.3.1 and 3.14.5 3 14.2.2 With one pump and/or one water supply inoperable, restore the Inoper-able equipment to OPERABLE status within 7 days or, in lieu of any other report required by Specification 6.9.5.E, prepare and submit 68 a Special Report to the Commission pursuant to Specification 6.9 J

within the next 30 days outlining the plans'and procedures to be used to restore the inoperable equipment to OPERABLE status or to y

provide an alternate backup pump or supply.

3.14.2 3 With no fire suppression, water system OPERABLE:

a.

Establish a backup fire suppression water system within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

b.

In lieu of any other report required by Specification 6.9, submit a Special Report in accordance with Specification 6.9.5.E:

4

)

1)

By telephone within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />,

2) Confirmed by telegraph, mailgram or facsimile transmission 68

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no later than the first working day following the event, and c.

In writing within 14 days following the event, outlining the action taken, the cause of the inoperability and the plans and schedule for restoring the system to OPERABLE status.

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3-54 Proposed Amendment No. 68, Rev.' 1

RANCHO SECO UNIT 1 TECHNICAL SPECIFICATIONS 4

Limiting Condit' ions for Operation TABLE 3.14-1 FIRE DETECTION INSTRUMENTS FOR SAFETY SYSTEMS Minimum Operable Zone Instrument Location Heat Flame Smoke 68 4A Control / Computer Room 0

0 8

68 4B Control / Computer Room 0

0 15 11 Battery Room, Mezzanine Level 0

0 4

12 West DC Control Room, Mezzanine Level 0

0 2

13 West 480 VAC Room, Mezzanine Level 0

0 2

14 West Cable Tray Area 0

0 2

15 East Cable Tray Area 0

0 2

16 East 480 VAC Room, Mezzanine Level 0

0 2

17 East DC Control Room, Mezzanine Level 0

0

'2 19 Communications Room 0

0 5

l68 36 West Battery Room, Grade Level 0

0 4

37 West 4160 VAC Room 0

0 2

3 38 East 4160 VAC Room 0

0 2

i' 39 East Battery Room 0

0 4

40 North Diesel Room 2

0 0

41 South Diesel Room 2

0 0

44 Reactor Coolant Pumps A and B 0

1 0

44 Reactor Coolant Pumps C and D 0

1 0

45 Electrical Penetration Area, Grade Level 0

0 2

47 HPI Pump A Room 0

0 1

l 47

' West DH' Cooler Room (valve penetration area) 0 0

3 47 East DH Cooler Room (valve penet. ration area) 0 0

3 47 MU Pump Room 0

0 1

68 47 HPl Pump B P.oom 0

0 1

48 West DH Pump Room 0

0 1

48 East DH Pump Room 0

0 1

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1 3-55 1

J Proposed Amendment No. 68, Rev. 1 2

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RANCHO SECO UNIT 1 TECHNICAL SPECIFICATIONS Limiting Conditions for Operation 3 14.3 Spray and Sprinkler Systems Specification 3.14.3.1 The spray and/or sprinkler systems located in the following areas shall be OPERABLE:

a.

Control Room (Zone 3) b.E Controlled Area, Mezzanine Level (Zone 20) c.

Main Lube Oil Area, Grade Level (Zone 32) d.

Grade Level (Zone 34) e.

North Diesel Room (Zone 40)

I f.

South Diesel Room (Zone 41) i l

g.

West Controlled Area, Grade Level (Zone 42) i h.

East Controlled Area,' Grade Level (Zone 43) i.

South and East'-20' Level (Zone h6) 3.14.3 2 With one or more of the above, items a through f, required spray and/or sprinkler systems inoperable, within one hour establish a continuous i

fire watch with backup fire suppression equipment for those areas in which redundant systems or components required to safely shut dcwn and cool down the plant could be damaged; for other areas, establish an hourly fire watch patrol.

Restore the system to OPERABLE status within 6

14 days or, in lieu of any other report required by Specification 6.9, prepare and submit a Special Report to the Commission pursuant to Speci-fication 6.9 5.E within the next 30 days outlining the action taken, the cause of the Inoperability and the plans and schedule for restor-Ing the system to OPERABLE status.

3.14.4 CO2 System Specification 3.14.4.1 The CO2 systems located in the following areas shall be OPERABLE with a minimum capacity of 66% and a minimum pressure of 275 psig in the storage tank.

a.

Zone 12 West DC Control Room Mezzanine Level b.

Zone 13 West 480 VAC Room Mezzanine level c.

Zone 14 West Cable Tray Area d.

Zone 15 East Cable Tray Area e.

Zone 16 East 480 VAC Room Mezzanine Level f.

Zone'17 East'DC Control Room Mezzanine Level g.

Zone 36 West Battery Room Grade Level 4

'3-56 4

Proposed Amendment No. 68, Rev. I

RANCHO SECO UNIT 1 TECHNICAL SPECIFICATIONS Limiting Conditions for Operation 3.14.4.1 (Continued) h.

Zone 37 West 4160 VAC Room 1.

Zone 38 East 4160 VAC Room J.

Zone 39 East Battery Room k.

Zone 40 North. Diesel Room 1.

Zone 41 South Diesel Room m.

Zone 19 Communications Room 3.14.4.2

'With one or more of the above required CO2 systems inoperable, within one hour establish a continuous fire watch with backup fire suppression equipment for those areas in which redundant systems or components required to safely shut down and cool down the plant could be damaged; for other areas, establish an hourly 68 fire watch patrol. Restore the system to OPERABLE status within 14 days or. In lieu of any other report required by Specification 6.9, prepare and submit a Special Report to the Commission pursuant to Specification 6.9.5.E within the next 30 days outlining the action taken, the cause of the innoerability and the plans and schedule for restoring the system to OPERABLE status.

3.14.5 Fire Hose Stations Specification 3.14.5.1 The fire hose stations in the following locations shall be OPERABLE.

68 a.

All stations specified in Table 3.14-5 b.

Hydrant #2 c.

Hydrant #3 d.

Hydrant at coordinates N59+17; E30+20 Hydrant at coordinates N59+17; E32+20 e.

3.14.5.2 With one or more of the fire hose stations above inoperable, route an additional equivalent size fire hose to the unprotected area (s) from an OPER,* e hose station within I hour if the inoperable fire means of fire suppression; otherwise, route the 63 hose is the v

additional..

an 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

Restore the fire hose station to OPERABLE status within 14 days or, in lieu of any other report required by Specification 6.9, prepare and submit a Special Report to the Commission pursuant to Specification 6.9.5.E within the next 30 days outlining the action taken, the cause of the inoperability, and plans and schedule for restoring the station to OPERABLE status.

3-57 Proposed Amendment No. 68, Rev. 1

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S RANCHO SECO L'MIT 1 i -

TECHNICAL SPECIFICATIONS Limiting Conditions for Operation TABLE 3 14-5 4

AUXILIARY BUILDING FIRE HOSE STATIONS 10 No.

Location f

l HS 1

'+40 ft. Level Corridor by Counting Room l

HS 2

+40 ft. Level Corridor Across from Control Room HS 3

+40 ft. Level Corridor by Chemistry Lab 5

HS 4

+40 ft. Level Corridor by Cleaning Room HS 5

+20 ft. Level in Venitiation Equipment-Room 1

HS 6

+20 ft. Level Corridor by Communications Room HS 7 Grade Level by CR0 Cool,ing Water Heat' Exchanger HS 8

+20 ft. Level Corridor by Ventilation Equipment Room HS 9 '

+20 ft. Level Corridor by A/C Equipment Room 66

)

HS 10 Grade Level Corridor by Olesel Generator Room I'

HS 11 Grade Level Corridor Across from East 4160 Switchgear Room

}

HS 12 Grade Level Corridor across from East Battery Room HS 13 Grade Level Corridor by East End Stairwell HS 14 Grade Level by Waste Solidification Area HS 15

-20 ft. Level HPl Pump A Room i

HS 16

-20 ft. Level Containment Penetration V5ive Area HS 17

-20 ft. Level Corridor by Waste Gas Decay Tank Room HS 18

-20 ft. Level Corridor North of BA Evaporator Room l

HS 19

-47 f t. Level Stai rway by East and West DHR Pump Roo,ns 4

HS 20

-20 ft. Level Corridor East of HPl Pump B Room 3-57A Proposed Amendnent No. 68, Rev. 1 I

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RANCHO SECO UNIT 1 TECHNICAL SPECIFICATIONS Limiting Conditions for Operation 3.14.6

. Fire Barrier Penetration Fire Seals Specification 3.14.6.1 All fire barrier penetrations (including cable penetration barriers, fire doors and fire dampers)

In fire zone boundarys protecting safety related areas shall be functional.

3.14.6.2 Vith one or more of the above required fire barrier penetrations r,on-functional, within one hour either establish a continuous fire watch on at least one side of the affected penetration, or verify the OPERA-BILITY of fire detectors on at least one side of the non-functional 65 fire barrier and establish an hourly fire watch patrol.

Restore the non-functional fire barrier penetrations to functional status within 7 days or, in lieu of any other report required by Specification 6.9, prepare'and submit a Special Report to the Commission pursuant to Specification 6.9.5.E within the next 30 days outlining the action taken, the cause of the non-functional penetration and plans and schedule for restoring the fire barrier penetrations to functional status.

Bases OPERABILITY of the fire detection instrumentation ensures that adequate warning capability is available for the prompt detection of fires.

This capability is required in order to detect and locate fires in their early stages.

Prompt de-tection of fires will reduce the potential for damage to safety related equipment and is an integral element in the overall facility fire protection program.

In the event that a portion of the fire detection Instrumentation is inoperabie, the establishment of frequent fire patrols in the affected areas is required to provide detection capability until the Inoperable Instrumentation is returned to service.

The OPERABILITY of the fire suppression systems ensures that adequate fire suppres-sion capability is available to confine and extinguish fires occurring in any portion of the facility where safety related equipment is located. The fire sup-s pression system consists of the water system, spray and/or sprinklers, CO, and 2

fire hose stations. The collective capability of the fire suppression systems is adequate to minimize potential damage to safety related equipment and is a major

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element in the facility fire protection program.

In the event that portions of the fire suppression systems'are inoperable, alter-nate backup fire fighting equipment is required to be made available in the affected areas until the affected equipment can be restored to service.

In the event that the fire suppression water system becomes inoperable, immediate corrective measures must be taken since this system provides the major fire sup-pression capability of the plant.

The requirement for a twenty-four (24) hour report to the Commission provides for prompt evaluation of the acceptability of the corrective measures to provide adequate fire. suppression capability for the continued protection of the nuclear plant.

i-3-58 Proposed Amendment No. 68, Rev...I

RANCHO SECO UNIT 1 TECHNICAL SPECIFICATIONS Limiting Conditibns for Operation Bases (Continued)

The functional integrity of the fire barrier penetration seals ensures that fires will be confined or adequately retarded from spreading to adjacent portions of the fa *lity.

This design feature minimizes the possibility of a single fire rapidly involving several areas of the facility prior to detection and extinguish-ment. The fire barrier penetration seals are a passive element in the facility fire protection program and are subject to periodic inspections.

During periods of time when the seals are not functional, an hourly fire watch is required to be maintained in the vicinity of the affected seal until the seal 63 is restored to functional status.

3-59 Proposed Amendment No. 68, Rev. 1

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RANCHO SECO UNIT I TECHNICAL SPECIFICATIONS Surveillance Standards 4.18 FIRE SUPPRESSION SYSTEM SURVEILLANCE 4.18.1 Instrumentation 4*.18.1.1 Except for fire detection instruments inaccessible during power operation, each of the fire detection instruments in Table 3.14-1 shall be demonstrated OPERABLE at least semi-annually by a CHANNEL TUNCTIONAL TEST.

Fire detectors which are not accessible during plant operation shall be demonstrated OPERABLE by the performance of a CHANNEL FUNCTIONAL TEST during each COLD SHUTDOWN exceeding 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> i

unless performed in the previous 6 months.

k 18 I 2 The NFPA Standard 720 supervised circulis associated with the detector alarms for each of the fire instruments in Table 3.14-1 shall be demonstrated OPERABLE at least sensi-annually.

0*IO I 3 Non-supervised circuits associated with detector alarms, between the instrument and the control room shall be demonstrated OPERABLE at least once per 31 days.

4.18.2 Water System 4.18.2.1.

The fire suppression water system shall be demonstrated OPERABLE:

a.

At least once per 7 days by verifying the contained water supply 6F

volume, i

b.

At least once per 31 days on a STAGGERED TEST BASIS by starting each electric motor driven pump and operating it for at least 15 minutes on recirculation flow.

I c.

At least once per 31 days by verifying that each valve (manual, power operated or automatic) in the flow path is in its correct j'

position as indicated by position instrumentation.

d.

At least once' per 6 months by performance of a system flush to I

each test fixture.

e.

At least once per 12 months by cycling each testable valve in the 4

flow path through at least one complete cycle of full travel.

pe r' f B mo.n ths. Eperformina a system functional f.

At least once test which includes simulated automatic actuation of the system throughout its operating sequence, and:

1.

Verifying that each automatic valve in the flow path actuates

-to its correct position, a

2.

Verif; ring that each pump develops at least 2000 gpm at a mini-

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mum ptessure of 125 psig.

4-58 Proposed Amendment No. 68, Rev..I

RANCHO SECO UNIT 1 TECHNICAL SPECIFICATIONS Surveillance Standards i

4.18.2.1 (Continued) 4 1

3 Cycling each valve in the flow path that is not testable during plant operation through at least one complete cycle of full travel, and 4.

Verifying 'that each fire suppression pump starts (sequentially) to maintain the fire suppression water system pressure greater 68 than or equal to 80 psig.

At least once per 3 years by performing a flow test of the system.

g.

In accordance with Chapter 5, Section 11 of the Fire Protection Handbook, 14th Edition, published by the National Fire Protection i

Association, i

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4-59 I'

Proposed Amendment No. 68, Rev. 1

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RANCHO SECO UNIT 1 TECHNICAL SPECIFICATIONS Surveillance Standards 4.18.2.1 (Continued) h.

The fire pump diesel engine shall be demonstrated OPERABLE:

1.

At least once per 31 days.by verifying:

a. ' The fuel storage tank contains at least 250 gallons of fu'el, and b.

The diesel starts from ambient conditions and operates 6-for at least 30 minutes on recirculation flow.

2.

At least once per 92 days by verifying that a sample of diesel from the fuel storage tank, obtaine'd in accordance with ASTM-D270 6f, is within the acceptable limits specified 2

in Table 1 of ASTM-D975-74 with respect to viscosity, water content and sediment.

6:'

3.. At least once per 18 months, by subjectino the diesel to an inspection in accordance with procedures prepared in conjunction with its manufacturer's recommendations for the i

class of service.

i. The fire pump diesci starting 24-volt battery bank and charger shall be demonstrated OPERABLE:

1.

At least once per 7 days by verifying that:

a) The electrolyte level of each battery is above the plates, and 1

1 b) The overall battery voltage is c eater than or equal to 24 volts.

2.

At least once per 92 days by verifying that the specific 6:

gravity is appropriate for continued service of the battery.

3 At least once per 18monthsbyveri,fy_Ing],that:

a) The batteries, cell plates and battery racks show no visual indication of. physical damage or abnormal deterioration, and b) The battery-to-battery and terminal connections are clean, tight, free of corrosion and coated with anti-corrosion material.

4-60 l

Proposed Amendment No. 68, Rev. 1

RANCHO SECO tJNIT 1 TECHNICAL SPECIFICATIONS Surveillance Standards 4.18.3 Spray and/or Sprinkler Systems 6?

4.18.3 1 The spray and/or sprinkler systems specified in Section 3.14.3.1 shall be demonstrated to be OPERABLE:

a.

At least once per 31 days by verifying that each valve (manual, power operated or automatic) in the flow path is in its correct position visually or as indicated by position instrumentation.

6E b.

Annually by cycling each testable valve through one complete cycle of full travel.

c.

Once per 18 months:

1)

By performing a system functional test which includes simu-lated automatic actuation of the system and verifying that the automatic valves in the flow path actuate to their correct positions, and cycling each valve in the flow path that is not testable during plant operation through at least one complete 6E cycle of full travel; and 2)

By inspection of spray and/or sprinkler headers to verify their integrity; and

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3) i;y inspection of each nozzle and/or sprinkler to verify no blockage.

d.

At least once per three (3) years by performing a flow test throuch each inspector test station valve and verifying each open head spray and/or sprinkler header is unobstructed.

4.18.4 CO Systems g

2 4.18.4.1 The CO, system specified in Section 3.14.4.1 shall be demonstrated OPERABEE:

a.

Once per 7 days by verifying the CO storage tank level to be 2

greater than 66% and pressure to be greater than 275 psig.

b.

Once per 31 days by verifying that each valve (manual, power operated, or automatic) in the flow path is' in the correct position visually or as indicated by position instrumentation.

c.

Once per 18 months by verifying the system electro manual pilot valves and associated ventilation dampers actuate automatically and manually to a simulated actuation signal.

A flow test shall be made to verify flow from each nozzle.

4.18.5 Fire Hose Stations 6?

4.18.5.1 Each fire hose station specified in Section 3.14.5.1 shall be demonstrated to be OPERABLE:

4-61 l

Proposed Amendment No. 68, Rev. I

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i RANCHO SECO UNIT 1 TECHNICAL SPECIFICATIONS l

Surveillance Standards

-a.

Once per 31 days by visual inspection of the station to assure all equipment is available at the station.

b.

Once per 18 months inspect and' replace all gaskets in the coupling's 68 that are degraded, and removing the hose for inspection and re-racking.

,c. Once per thre'e (3). years, partially open hose station valves to verify valve operability and no valve blockage.

d.

Once per three (3) years by removing and replacing all hose with new equivalent NFPA tested and approved hose.

4.18.6 Fire' Barrier Penetrations 4.18.6.1 Each of the' fire barrier penetrat ons specified in Section 3.14.6.1 shall be verified to be functional:

65 a.

At least once per 18 months by a visual Inspection.

i b.

Prior to returning a' fire barrier pene'tration to functional status following repairs or maintenance by performance of a visual inspection of the affected fire barrier penetration (s).

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4-62 I'

Proposed Amendment No. 68, Rev. 1

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