ML20063N665

Proposed Revision to Tech Spec 3.1.2.2,requiring Both Boric Acid Tanks & Corresponding Facility Dependent Flow Paths to Be Operable in Modes in Which Operability Is Required for ECCS

ML20063N665
Person / Time
Site:	Millstone
Issue date:	09/24/1982
From:	NORTHEAST NUCLEAR ENERGY CO.
To:
Shared Package
ML20063N659	List: ML20063N658 ML20063N665
References
TAC-48919, NUDOCS 8210050187
Download: ML20063N665 (3)

Text

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i Docket No. 50-336 i

Attachment i . Millstone Nuclear Power Station, Unit No. 2 Proposed Revisions to Technical Specifications Boric Acid Flow Path Requirements i

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September,1982 i

i 8210050187 820924 PDR ADOCK 00000336 P PDR

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REACTIVITY CONTROL SYSTEMS FLOW PATHS - OPERAT!NG LIMITING CONDITION FOR OPERATION 3.1.2.2.1 Two flow paths from the boric acid storage tanks via either a boric acid pump or gravity feed connection, and a charging pump to the Reactor Coolant System and one associated heat tracing circuit shall be OPERABLE.

APPLICABILITY: Modes 1, 2 and 3*

ACTION:

With only one of the above required boron injection flow paths to the Reactor Coolant System OPERABLE, restore at least two boron injection flow paths to the Reactor Coolant System to OPERABLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or make the reactor suberitical within the next 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, borate to a SHUTDOWN MARGIN equivalent to at least 1% ok/k at 2000F; and restore at least two flow paths to OPERABLE status within the next 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 />.

3.1.2.2.2 At lea = c two of the following three boron injection flow paths and one associated heat tracing circuit shall be OPERABLE:

a. Two flow paths from the boric acid storage tanks via either a boric acid pump or a gravity feed connection and a charging pump to the Reactor Coolant system and

b. The flow path from the refueling water storage tank via a charging pump to the Reactor Coolant System.

APPLICABILITY: MODES 3# and 4.

ACTION:

With only one of the above required boron injection flow paths to the Reactor Coolcnt System OPERABLE, restore at least two boron injection flow paths to the Reactor Coolant System to OPERABLE status within 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> or borate to a SHUTDOWN MARGIN equivalent to at least 1% bk/k at 200 F; and restore at least two flow paths to OPERABLE status within the next 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 />.

• With pressurizer pressure 21750 PSIA (r- ~ ~ ~ ~ ~

1. With pressurizer pressure less than 1750 PSIA 3/4 1-10

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SURVEILLANCE REQUIEEMENTS 4.s 2.2 The two required flow paths shall be demonstrated OPERABLE:

a. At least once per 7 days by:

1. Exercising all testable power operated valves in each flow path through at least one complete cycle, 4 2. Verifying that the temperature of the heat traced portion of the flow path from the concentrated boric acid tanks is above the temperature limit line shown on Figure 3.1-1,

b. At least once per 31 days by verifying the correct position of all manually operated valves in the boron injection flow path not locked, sealed or otherwise secured in position and

c. At least once per 18-months, during shutdown, by excrcising all power operated valves in each flow path through at least one complete cycle.

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