ML20082L983

Proposed Tech Specs 3.3.3.7 Re Chemical Detection Sys

ML20082L983
Person / Time
Site:	South Texas
Issue date:	08/30/1991
From:	HOUSTON LIGHTING & POWER CO.
To:
Shared Package
ML20082L979	List: ML20082L983 ST-HL-AE-3842, Application for Amend to Licenses NPF-76 & NPF-80,revising Tech Spec 3.3.3.7 Re Chemical Detection Sys
References
NUDOCS 9109040497
Download: ML20082L983 (1)

Text

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l ATTACliMENT Q j INSIRUMENIAIION SI-HL- AE 3a N

• PAGE f 0F I l

D CHfu.lCAL CETECT:CN SYSTEMS LIPLTLNI._CfCLTJpy FOR fDEcaTION

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3.3.3.7 4weAi nde;endent Chemical Detection Systems shall be OPERABLE with their ' Alarm / Trip Setpoints adjusted to actuate at the following concentrations:

a. Vinyl Acetate 5,10 ppm

b. Anhydrous Ammonia / < 25 ppm Ammonium Hydroxide /

APPLICABILITY: All MODES.* l ACTION: '

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a. With one Chemical Detection System inopera ?le, restore the inoperable system to OPERABLE status within 7 days orwithin the aext C h;ur&

-ini;;;te and me.intcin operath of the Ocatrol Racc. Ecgrgency Venti. -

ht-ien Sys temin the recirculat4cn c.cdc cf-eperatica.

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b. With betMChemical Detection Systems inoperable, within I hour initi-ate and maintain operation of the Control Room Emergency Ventilation System in the recirculation mode of operation.

E IURVEILLANCEJJ0VIREMENTS . _ _ , (aM %tTA L -

4.3.3.7 l Each C'.cmical Detectie .cyste.? shall t,c demenstrated OPE RABLE by per-formance of a CMANNEL CHECK at 'chst once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />, an ANALOGvCHANNEL OPERATIONAL 1EST at least once pr 31 days and a CHANNEL CALIBRATION at least once per 18 conths.

• In MODES 5 and 6, if it becomes necessary to place the Control Room Emergency Ventilation System in the recirculation mode of operation and if other Technical Specifications (3.7.7 " Control Room Makeup and Cleanup Filtration System" and/or Table 3.3-3, Item 10 " Control Rocm Ventilation") require placing the system in the recirculation and makeup filtration mode, then in this situation, place the system in the filtered recirculation mode on1v.

9109040497 910830 PDR ADOCK 050004%_

p PDR SOUTH TEXAS - UNITS 1 & 2 3/4 3-75 AMENDMENT NOS.15 AND S

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