ML20236A056

Proposed Tech Specs Allowing Overall Operability Check of Pump & Turbine Driver at Low Steam Pressure,Clarify Wording in Tech Specs Re Control Room Emergency Ventilation Sys & Incorporate Valves MO-2069A & MO-2069B Requirements

ML20236A056
Person / Time
Site:	Trojan File:Portland General Electric icon.png
Issue date:	03/13/1978
From:	PORTLAND GENERAL ELECTRIC CO.
To:
Shared Package
ML20236A040	List: ML20236A038 ML20236A052 ML20236A056
References
TAC-07457, TAC-7457, NUDOCS 8710210358
Download: ML20236A056 (3)

Text

LCA 44 s

., Attrchment A Page 1 of 3 PLANT SYSTEMS L

AUXILIARY FEEDWATER SYSTEM LIMITING C0f:0ITION FOR OPERATION I

3.7.1.2 At least two independent steam generator auxiliary feedwater pumps and associated flow paths shall be OPERABLE with:

a. One feedwater pump capable of being powered by an OPERABLE diesel with 3.450 gallons of fuel in its day tank, and

b. One feedwater pump capable of being powered from an OPERABLE steam supply system. ,

APPLICABILITY: MODES 1, 2 and 3.

ACTION:

With one auxiliary feedwater pump inoperable, restore the inoperable pump to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />. ,

SURVEILLANCE REQUIREMENTS 4.7.1.2.1 Each auxiliary feedwater pump shall be demonstrated OPERABLE:

a. At least once per 31 days by:

1. Verifying that the diesel-driven pump starts and develops a discharge pressure of >1580 psig at 1200 RPM engine speed on recirculation flow, and

2. Verifying that the steam turbine-driven pump starts and develops a discharge pressure of 3,1580 psig at 4560 RPM on recirculation flow when the secondary steam pressure is >800 psig. Indication of pump operability may be determined at lower pressures in Modes 2 or 3 by verifying that the steam turbine-driven pump starts and develops a discharge pressure of 1470 psig on recirculation ficw when the second-dry steam pressure is >275 psig, however, operation at full speed must be verified as soon as secondary steam pressure is increased above 800 psig.

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LCA 44

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Pago 2 of 3  !

PLANT SYSTEMS 3/4.7.6 CONTROL ROOM EMERGENCY VENTILATION SYSTEM

. LIli! TING CONDITION FOR OPERATION  ;

3.7.6.1 Two independent control rocm emergency ventilation systems shall be OPERABLE.

APPLICAB ILITY: M00ES.1, 2, 3, and 4  ;

ACTION:

With one control room emergency ventilation system inoperable, restore l the inoperable system to OPERABLE status within 7 days or be in COLD SHUTDOWN within the next 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />.

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SURVEILLANCE REQUIREMENTS l I

. 1 4.7.6.1 Each control room emergency ventilation system shall be demon-strated OPERABLE:

a. At least once per 31 days on a STAGGERED TEST BASIS by l initiating flow through the HEPA filter and charcoal l adsorber train and verifying that the train operates for at least 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> with the preheaters on and main-tains the control room air temperature 1,110*F.

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