ML20138F218

Proposed Tech Specs,Consisting of Suppl 1 to Proposed Change 124,responding to NRC Concerns Re Containment Hydrogen/ Oxygen Monitor & Control Room Toxic Gas Monitor

ML20138F218
Person / Time
Site:	Vermont Yankee File:NorthStar Vermont Yankee icon.png
Issue date:	11/26/1985
From:	VERMONT YANKEE NUCLEAR POWER CORP.
To:
Shared Package
ML20138F207	List: FVY-85-117, Suppl 1 to 841214 Application for Amend to License DPR-28, Consisting of Proposed Change 124,responding to NRC Concerns Re Containment Hydrogen/Oxygen Monitor & Control Room Toxic Gas Monitor ML20138F218
References
NUDOCS 8512160040
Download: ML20138F218 (3)

Text

,

i-i VYNPS ,

TABLE 3.2.6 -

1 Post-Accident Instrumentation-Minimum Number of Operable Instrument .

Instrument l

poeofIndication Range l

Channels Parameter i 2 Drywell Atmospheric Temperature Recorder #16-19-45 0-300 0 F (Note 1) Recorder #TR-1-149 0-3000F l

l 2 Containment Pressure (Note 1) Meter #16-19-29A 0-275 psia I Meter #16-19-29B 0-275 psia i

1 Torus Pressure (Note 1) Recorder #16-19-44 0-80 psia l

i 2 Torus Water Level.(Note 3) Meter #16-19-10A 0-20 ft.

Meter #16-19-10B 0-20 ft.

2 Torus Water Temperature (Note 1) Meter #16-19-48 60-180 0 F 2 Reactor Pressure (Note 1) Meter (!PI-2-3-56A 0-1500 psig f Meter iPI-2-3-56B f 0-1500 psig 2 Reactor Vessel Water Level Meter J2-3-91A (-150)-0-(+150)"H 2O f Meter 12-3-91B (-150)-0-(+150)"H 2O I (Note 1) l i 1 Control Rod Position (Notes 1, 2) Meter 0-48" RPIS

' /

1 Neutron Monitor (Notes 1,2) Meter 0-125% Rated flux Torus Air Temperature (Note 1) Recorder #TR-16-19-45 0-300 0 F 1

l Safety / Relief Valve Position Lights Closed - Open 2/ valve From Pressure Switches (Note 4). (SRV 2-71-A.through D)

C

• 49 Amendment No. 53, 90 .

7 PDR, m

VYMPS~ ..

TABLE 3.2.6 -.

Post-Accident Instrutrients. tion (continued)

Minimum Number of Instrument OPCrable Instrument Type of Indication ' Range channels Parameter Safety Valve Position From Metee #21-2-1A/B Closed 'Open 1/ valve Acoustic Monitor (Note 5)

Containment Hydrogen /0xygen Mete r.'#SR-VG-6 A - 0-30% hydrogen-2 Meter #SR-VG-6B 0-25% oxygen Monitor (Note 1) 2 Containnent High-Range Radistion Meter'#RM-16-19-1A/B 'l R/hr-107 R/hr Monitor (Note 6) i i

i l

49a Amendment No. 63, 90

VYNPS TABLE 3.2.6 POST-ACCIDENT INSTRU:tENTATION -

(continued)

TABLE 3.2.6 NOTES Note 1 - From and after the date that a parameter is reduced to cne indication, operation is permissible for 30 days. If a parameter is not indicated in the Control Room, continued operation is permissible during the next seven days. If indication cannot be restored within the next six hours, an orderly shutdown shall be initiated and the reactor shall be in a hot shutdown cor.dition in six hours and a cold shutdown condition in the following 18 hours2.083333e-4 days <br />0.005 hours <br />2.97619e-5 weeks <br />6.849e-6 months <br />.

Note 2 - Control rod position and neutron monitor instruments are considered to be redundant to each other.

Note 3 - From and after the date that this parameter is reduced to one indication in the Control Room, continued reactor operation is permissible during the next 30 days. If both channels are inoperable and indication cannot be restored in six hours, an orderly shutdown shall be initiated and the reactor shall be in a hot shutdown condition in six hours and a cold shutdown condition in the following 18 hours2.083333e-4 days <br />0.005 hours <br />2.97619e-5 weeks <br />6.849e-6 months <br />.

Cate 4 - From and after the date that safety / relief valve position from pressure switches is unavailable, reactor operation may continue prorided safety / relief valve position can be determined from Recorder #2-166 (thermocouple. 0-6000 F) and Meter #16-19-48 (torus water temperature,60-180 0F) . If both indications are not available, the reactor shall be in a hot shutdcwn condition in six hours and a cold shutdown

• condition in the following 18 hours2.083333e-4 days <br />0.005 hours <br />2.97619e-5 weeks <br />6.849e-6 months <br />.

Cote 5 - From and after the date that safety valve position from the acoustic monitor is unavailable, reactor operation may continue provided safety valve position can be determined from Recorder #2-166 (thermocouple, 0-6000 F) and Meter #16-19-29A or B (containment pressure 0-275 psia) . If both indications are not available, the reactor shall be in a hot shutdown condition in six hours and in a cold shutdown condition in the following 18 hours2.083333e-4 days <br />0.005 hours <br />2.97619e-5 weeks <br />6.849e-6 months <br />.

Note 6 - Within 30 days following the loss of one indication, or seven days following the loss of both indications, restore the inoperable channel (s) to an operable status or a special report to the Commission pursuant to l

Specification 6.7 must be prepared and submitted within the subsequent 14 days, outlining the action taken, l the cause of the inoperability and the plans and schedule for restoring the system to operable status.

Amendment No. 63 49b l

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