ML20149H377

Corrected Amends 118 & 116 to Licenses DPR-80 & DPR-82, Respectively.Amends Revised TS to Add Two TS Surveillance Requirements to Support Implementation of Extended Fuel Cycles

ML20149H377
Person / Time
Site:	Diablo Canyon
Issue date:	07/17/1997
From:	NRC (Affiliation Not Assigned)
To:
Shared Package
ML20149H380	List: ML20149H377
References
NUDOCS 9707240359
Download: ML20149H377 (4)

Text

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m EMERGENCY CORE COOLING SYSTEMS ~

{

SURVEILLANCE REQUIREMENTS (Continued) c.

~ By a visual inspection which verifies that no loose debris (rags, trash, clothing, etc.) is present in the containment which could be 1

transported'to the containment sump and cause restriction of the

) ump suctions during LOCA conditions.

This visual inspection shall Je performed:

1)

For all accessible areas of the containment prior to establishing CONTAINMENT INTEGRITY.-and 2)'

At' least once daily of the areas affected within containment by~ containment + ttry and during the final entry when CONTAINMENT INTEGdITY is established, d.

-At-least once each REFUELING INTERVAL by a visual inspection of the l

containment sum) and verifying that the subsystem suction inlets are.

not restricted )y debris and that the sump components (trash racks, screens, etc.) show no evidence of structural distress or corrosion:

e.

At.least once each REFUELING INTERVAL by:

l 1)

Verifying that each automatic valve in-the flow path actuates to its correct position on a Safety Injection actuation test signal.

2)

Verifying that each of the following pumps start automatically upon receipt of a Safety Injection actuation test signal:.

a)

Centrifugal charging pump, j-b)

Safety Injection pump, and c)

Residual Heat Removal pump.

E Lf.

By verifying that each of the following pumps develops the indicated differential. pressure on recirculation flow when tested-pursuant to Specification 4.0.5:

p 1)

Centrifugal charging pump a'2400 psid, 2)

Safety Injection _ pump 2 1455_psid, and i

,i L

3)

Residual ~ Heat Removal pump = 165 psid.

C i

l DIABLO CANYON - UNITS 1 & 2 3/4 5-5 Unit 1 - Amendment No. M2.118

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F 9707240359 970717 PDR ADOCK 05000275 P

PM u_,

EMERGENCY CORE COOLING SYSTEMS SURVEILLANCE REOUIREMENTS (Continued) 4 g.

By verifying the correct position of each electrical and/or-mechanical position stop for the following_ ECCS throttle valves:

i 1)

Within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> following completion of each valve stroking i

operation or maintenance on'the valve when the ECCS subsystems are required to'be OPERABLE, and i

2)

At least once each REFUELING INTERVAL.

l l

l Charging Injection Safety Injection Throttle Valves Throttle Valves 4

4 8810A 8822A l

88108 88228 1

8810C 8822C I

8810D 8822D h.

By performing a flow balance test, during shutdown, following completion of modifications to the ECCS subsysteihs that alter the

. subsystem flow characteristics and verifying that:

1)

For centrifugal charging pumps, with a single pump running:

a)

The sum of injection line flow rates, excluding the 2

highest flow rate, is greater than or equal to 299 gpm, and i

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4 DIABLO CANYON - UNITS 1 & 2 3/4 5-6 Unit 1 - Amendment 05,72,102,118 1

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Unit 2 - Amendment !?.,71,102,116

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CONTAINMENT' SYSTEMS CONTAINMENT COOLING SYSTEM i

J LIMITING CONDITION FOR 00ERATf0N j

3.6.2.3 The Containment Cooling System shall be OPERABLE with either:

a., At least four containment fan cooler units (CFCUs), or j

b.

At least three CFCUs, each of the three supplied from a different

,i vital bus.

APPLICABILITY: MODES 1, 2, 3, and.4.

l EI1Q!i:

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a.

With the requirements of the above specification not satisfied, but i

at least two CFCUs OPERABLE and both Containment Spray Systems OPERABLE, restore the Containment Cooling System to OPERABLE status within 7 days, otherwise be in at least HOT STANDBY within the next 6 l

hours and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

b.

With the requirements of the above s>ecification not satisfied and i

one Containment Spray System incpera>1e, but at least two CFCUs OPERABLE, restore the inoperable Containment Spray Sys' tem to 0PERABLE status within 72 hurs otherwise be in at least HOT STANDBY within i

the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOW within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

Restore the Containment Cooling System.to OPERABLE status within 7 days of initial loss or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

SURVEfLLANCE RE00iREMENTS l

4.6.2.3 Each containment fan cooler unit shall be demonstrated OPERABLE:

a.

At least once per 31 days by:

1)

Starting each containment fan cooler unit and verifying that each containment fan cooler unit operates for at least 15

minutes, DIABLO CA*IYON - UNITS 1 & 2 3/4 6-13 Amendment Nos. 1; ; ;

89 & 88

e o

-CONTAINMENT SYSTEMS.

CONTAINMENT COOLING SYSTEM SURVEILLANCE REQUIREMENTS (Continued) 2)

. Verifying'a cooling water flow rate of greater than or equal to 1650* gpm to each cooler, and 3)

Verifying that:each containment fan. cooler unit starts on' low-speed.

b.

At least once each REFUELING INTERVAL by verifying that each l

containment fan cooler unit starts automatically on a Safety

. Injection test signal.

l 1

1

(.,

• The CFCU cooling water flow rate requirement of TS_4.6.2.3a.2) may not be met during-Section XI testing and in Mode 4 during residual heat removal j

heat exchanger operation.

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DIABLO CANYON - UNITS 1 & 2 3/4 6-14 Unit 1 - Amendment No. 69r89.118 Unit 2 - Amendment No. 68-88.116