ML20247D833

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Proposed Tech Specs Re Fxy Formula for three-loop Operation
ML20247D833
Person / Time
Site: Millstone 
Issue date: 07/20/1989
From:
NORTHEAST NUCLEAR ENERGY CO.
To:
Shared Package
ML20247D814 List:
References
NUDOCS 8907250314
Download: ML20247D833 (13)


Text

- ____ ___ _

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Docket No. 50-it r B13209 Millstone Unit No. 3 Proposed Revision to Technical Specifications l

1 1

l 1

July 1989 8907260314 890720 ADOCK0500g3 PDR P

1

.2

P0'WER DISTRIBUTION LIMITS SURVEILLANCE REQUIREMENTS 4.2.2.2.1 The provisions of Specification 4.0.4 are not applicable.

4.2.2.2.2 F

shall be evaluated to determine if F (Z) is within its limit by:

xy n

Using the movable incore detectors to obtain a power distribution map a.

at any THERMAL POWER greater than 5% of RATED THERMAL POWER, b.

Increasing the measured F component of the power distribution map by 3% to account for manufachring tolerances and further increasing the value by 5% to account for measurement uncertainties, c.

Comparing the F computed (F f) obtained in Specification 4.2.2.2.26, above to:

xy x

approhriatelimits for 65% of RATED THERMAL POWER (F*0.65 RTP) for the 1)

The F measured core planes Y

given in Specification 4.2.2.2.2e. and f., below, and 2)

The relationship:

F f - F.65 RTP [1+Mpxy (v.65-P)],

0 x

x l

Where F is the limit for fractional THERMAL POWER operation expresse as a function of F 55 RTP.M is the F multiplier, pxy xy and P is the fraction of RATED THERMAL POWER at which F was measured.

xy d.

Remeasuring F according to the following schedule:

xy 1)

When F is greater than the F 65 RTP 1 mit for the appropriate x

measured core plane but less than the Fxy relationship, additional power distribution maps shall be taken and F C 65 RTP compared to F and F either:

x a)

Within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after exceeding by 20% of RATED THERMAL POWER or greater, the THERMAL ISfER at which F was last determined, or b)

At least once per 31 Effective Full Power Days (EFPD),

whichever occurs first.

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i ELANT SYST M j

NAIN STEAM LINE ISOLATION VALVES l

1 LIMITING CONDITION FOR OPERATION.

3.7.1.5 Each main steam line ilsolation valve (MSIV) shall be OPERABLE.

APPLICABIL14Y: MODES 1, 2, 3,.and 4.

80 TION:

1 MODE 1:

i With one MSIV inoperable but open, POWER OPERAT15N may continue provided the inoperable valve is restored to OPERABLE status within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />, otherwise be in 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 HOT SHUTDOWN within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

l-MODES 2, 3, and 4:

i With one MSIV inoperable, subsequent operation in MODE 2 or 3 or 4 may proceed provided the isolation valve is maintained closed. Otherwise, be in 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 1

following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

l 1

SURVEILLANCE RE0VIREMENTS

)

4 J.1. 5 Each MSIV shall be demonstrated OPERABLE by verifying the isolation times when tested pursuant to Specification 4.0.5.

The provisions of 4

Specification 4.0.1 are not applicable for entry into MODE 3.

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IAJ.d 3.3-6 (Continued 1 1

Jfj E NOT6110M With fuel in the fuel storage pool areas.

ACIT0N STKiEMENTS ACTIOW 26 -

With less _ t.n the Minimum Channels. 0PERABLE requirement, fuel movement may continue provided the containment purge and-exhaust valves are mintained closed.. The containment radia-

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tion monitoring channels required for containment area purge and exhaust isolation are not required to: be OPERABLE during the~ performance of Type A containment leakage rate tests.

ACTION 27 -

Not used.

ACTION 28 -

With less than the Minimum Channels OPERAELE requirement, fuel l

movement may continue for up to 30 days provided an appre riate i

s portable. continuous monitor with the same ~ Alarm Setpvint is

. provided in the fuel storage pool. area.

Restore the inoperable monitors to 0PERABLE status within~ 30 days or suspend all' operations involving fuel movement in the fuel storage pool areas.

ACTION 29 -

With the number of OPERABLE Channels less than the Minimum Channels OPERABLE requirement, comply with the' ACTION requirements of Specift:ation 3.4.6.1.

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