ML040920158

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6 TS Pages (Amds. 164/166)
ML040920158
Person / Time
Site: Diablo Canyon  Pacific Gas & Electric icon.png
Issue date: 03/31/2004
From: Shukla G
NRC/NRR/DLPM
To:
Shukla G, NRR/DLPM/LPDIV-2/415-8439
Shared Package
ML040920251 List:
References
TAC MB9640, TAC MB9641
Download: ML040920158 (6)
v • d • e


Text

Rod Position Indication 3.1.7 3.1.7 Rod Position Indication LCO 3.1.7 The Digital Rod Position Indication (DRPI) System and the Demand Position Indication System shall be OPERABLE.

APPLICABILITY: MODES I and 2.

ACTIONS KI1NU)TIt I lr Separate Condition entry is allowed for each inoperable rod position indicator and each demand position indicator.

CONDITION REQUIRED ACTION COMPLETION TIME A. One DRPI per group A.1 Verify the position of the Once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> inoperable for one or more rods with inoperable groups. position indicators indirectly by using core power distribution measurement information.

OR A.2 Reduce THERMAL 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> POWER to

B. More than one DRPI per B.1 Place the control rods Immediately group inoperable. under manual control AND B.2 Monitor and record Once per 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> reactor coolant system Tavg.

AND (continued)

DIABLO CANYON - UNITS 1 & 2 3.1-13 Unit 1 - Amendment No. 435,164 Unit 2 - Amendment No. 435,166

Rod Position Indication 3.1.7 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME B. (continued) B.3 Verify the position of the Once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> rods with inoperable position indicators indirectly by using core power distribution measurement information.

AND B.4 Restore inoperable 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> position indicators to OPERABLE status such that a maximum of one DRPI per group is inoperable.

C. One or more rods with C.1 Verify the position of the 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> inoperable DRPIs have rods with inoperable been moved in excess of position indicators 24 steps in one direction indirectly by using core since the last determination power distribution of the rod's position. measurement information.

OR C.2 Reduce THERMAL 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> POWER to < 50% RTP.

D. One demand position D.1.1 Verify by administrative Once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> indicator per bank means all DRPIs for the inoperable for one or more affected banks are banks. OPERABLE.

AND D.1.2 Verify the most Once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> withdrawn rod and the least withdrawn rod of the affected banks are

< 12 steps apart.

OR D.2 Reduce THERMAL 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> POWER to < 50% RTP (continued)

DIABLO CANYON - UNITS 1 & 2 3.1-14 Unit 1 - Amendment No. 4a5,164 Unit 2 - Amendment No. 435,166

Fa(Z) 3.2.1 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY

+

SR .3.2.1.2 -NOTE If Fc (Z) measurements indicate maximum over zF. [ K~(2)Z 1 has increased since the previous evaluation of a (Z):

a. Increase F'(Z) by the appropriate factor specified in the COLR and reverify Fa(Z) is within limits:

or

b. Repeat SR 3.2.1.2 once per 7 EFPD until two successive power distribution measurements indicate maximum over z FC(Z) has not increased.

Verify Fw (Z) is within limit. Once after each refueling prior to THERMAL POWER exceeding 75%

RTP AND (continued)

DIABLO CANYON - UNITS 1 & 2 3.2-3 Unit 1 - Amendment No. 435,164 Unit 2 - Amendment No. 435,166

QPTR

- 3.2.4 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.2.4.1 NOTES

1. With input from one Power Range Neutron Flux channel inoperable and THERMAL POWER <

75% RTP, the remaining three power range channels can be used for calculating QPTR.

2. SR 3.2.4.2 may be performed in lieu of this Surveillance.

Verify QPTR is within limit by calculation. 7 days SR 3.2.4.2 -NOTE -

Not required to be performed until 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after the input from one or more Power Range Neutron Flux channels is inoperable with THERMAL POWER

> 75% RTP.

Verify QPTR is within limit using core power 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> distribution measurement information.

DIABLO CANYON - UNITS 1 & 2 3.2-11 Unit 1 - Amendment No. 4a5,164 Unit 2 - Amendment No. 1435,166 I

RTS Instrumentation 3.3.1 SURVEILLANCE REQUIREMENTS

-~~~~~~Iu d-N kI. Turr-J--------

I r-----

Refer to Table 3.3.1-1 to determine which SRs apply for each RTS Function.

SURVEILLANCE FREQUENCY SR 3.3.1.1 Perform CHANNEL CHECK. 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> SR 3.3.1.2 -NOTE---------

Not required to be performed until 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after THERMAL POWER is Ž15% RTP, but prior to exceeding 30% RTP.

Compare results of calorimetric heat balance 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> calculation to power range channel output. Adjust power range channel output if calorimetric heat balance calculation results exceed power range channel output by more than + 2% RTP.

SR 3.3.1.3 -- --- NOTE--- E-- --

Not required to be performed until 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after THERMAL POWER is > 50% RTP.

Compare results of incore power distribution 31 effective full measurements to Nuclear Instrumentation System power days (NIS) AFD. Adjust NIS channel if absolute difference (EFPD) is 2 3%.

SR 3.3.1.4 ---- NOTE-----

This Surveillance must be performed on the reactor trip bypass breaker, for the local manual shunt trip only, prior to placing the bypass breaker in service.

Perform TADOT. 31 days on a STAGGERED TEST BASIS SR 3.3.1.5 Perform ACTUATION LOGIC TEST. 31 days on a STAGGERED TEST BASIS (continued)

DIABLO CANYON - UNITS 1 & 2 3.3-8 Unit 1 - Amendment No. 435, -&7 164 Unit 2 - Amendment No. 135, a5-11 66

RTS Instrumentation 3.3.1 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.3.1.6 Not required to be performed until 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> after THERMAL POWER 2 75% RTP.

Calibrate excore channels to agree with incore power 92 EFPD distribution measurements. I SR 3.3.1.7 -- --- NOTES-

3. Not required to be performed for source range instrumentation prior to entering MODE 3 from MODE 2 until 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> after entry into MODE 3.
4. For source range instrumentation, this Surveillance shall include verification that interlocks P-6 and P-10 are in their required state for existing unit conditions.

Perform COT. 92 days (continued)

DIABLO CANYON - UNITS 1 & 2 3.3-9 Unit 1 - Amendment No. 435,164 Unit 2 - Amendment No. 435g,166

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