ML20151Z187

Proposed Tech Spec Changes to Remove Ref to Specific Value of 2,200 Ppm & Provide Generalized Boron Concentration Value & Remove Requirement for Inverse Count Rate Multiplication Measurement After Insertion of Each Five Fuel Assemblies

ML20151Z187
Person / Time
Site:	Yankee Rowe
Issue date:	08/11/1988
From:	YANKEE ATOMIC ELECTRIC CO.
To:
Shared Package
ML20151Z179	List: ML20151Z175 ML20151Z187
References
NUDOCS 8808290225
Download: ML20151Z187 (2)

Text

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REFUELING OPERATIONS REACTIVITY LTMTTIMC CONDITION FOR OPERATION 3.9 1 With the reactor vessel head unbolted or removed, the boron concentration of a.11 filled portions of the Main Coolant System and the shield tank cavity shall be maintained uniform and sufficient to ensure a k,gg of 0.93 calculated or less.

APPLICABILITY: MODE 6*

LCTION:  !

a. With the boron concentration requirements of the above specification not satisfied, immediately suspend all operations involving CORE ALTERATIONS or positive reactivity changes and initiate and continue boration at g 26 spm with a boron concentration sufficient to ensure K,gg is reduced to 1 0.93.

b. With a significant unexpected increase in the count rate on any '

4 channel, or an unexpected increase in the count rate by a factor of two after addition of a new fuel assembly or removal of a control rod, suspend CORE ALTERATIONS until the situation is reviewed by plant technical supervisory personnel.

c. The provisions of Specification 3.0.3 are not applicable.

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• The reactor shall be maintained in MODE 6 when the reactor vessel head is unbolted or removed with fuel in the vessel.

YANKEE-ROWE 3/4 9-1 Amendment No. 71, 88 8808290225 8E0811 PDR ADOCK 05000029 P PDC

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REFUELING OPERATIONS

[URVEILilHCE REOUIREMENTS 4.9.1.1 The above required reactivity condition shall be determinedt l t

a. Prior to removing or unbolting the reactor vessel head, and*  ;

b. Prior to withdrawal of any full-length control rod in excess of 3 feet from its fully inserted position.

I 4.9.1.2 Equipment which would make possible inadvertent reactivity increases shall be made inoperable and tagged out of service.

4.9.1.3 The boron concentration of the Main Coolant System and the shield t tank cavity shall be determined by chemical analysis at least 3 times per 7 days with a maximum time interval between samples of 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />. 7 4.9.1.4 Before flooding the shleid tank cavity with borated water, it shall be determined that the boron concentration of the water in the safety injection tank is not less than the required boron concentration of the Main ,

coolant System as specified above.

4.9.1.5 A record will be made of the neutron count rate before and af ter any change in core geometry. ,

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• With all four main coolant loops isolated during reactor head removal, assure that all control rods are inserted. With a control rod withdrawn, borate to

! compensate for the withdrawn rod.

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4 YANKED-ROWE 3/4 9-2 Amendment No. 77

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