ML19320A211

Proposed Tech Spec 3.16 Re Secondary Water Chemistry

ML19320A211
Person / Time
Site:	Arkansas Nuclear
Issue date:	12/28/1976
From:	ARKANSAS POWER & LIGHT CO.
To:
Shared Package
ML19320A205	List: ML19320A204 ML19320A211
References
NUDOCS 8004210513
Download: ML19320A211 (3)

Text

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3.16 Secondary Water Chemistry DhhM Applicability A D

'T R Objective b U d d)

To maintain steam generator feedwater chemistry within values without potential for degradation of steam generator tube walls.

Specification 3.16.1 The reactor shall not be taken or maintained above hot shutdown con-ditions unless the total cation conductivity limits of Table 3.16-1 are met except as provided below.

3.16.2 If the total cation conductivity of the steam generator feedwater is found to exceed the Steady State Limit of Table 3.16-1 but is within the Transient Limit of Table 3.16-1, it shall be verified at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> that the pH and maximum total solids in the steam generator feedwater are within the limits of Table 3.16-1 and the conductivity shall be restored to within its Steady State Limit within 7 days; or the reactor shall be placed in the hot shutdown condition within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

3.16.3 If, during the conditions described in 3.16.1 requiring surveillance of steam generator feedwater pH and/or maximum total dissolved solids, said pH and/or maximum total dissolved solids are found to exceed the limits of Table 3.16-1 they shall be restored within the limits of ,

Tabic 3.16-1 within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or the reactor shall be placed in the hot shutdown condition within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

3.16.4 If the total cation conductivity of the steam generator feedwater is found to exceed the Transient Limit of Table 3.16-1 it shall be restored to within the Transient Limit of Table 3.16-1 within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or the reactor shall be placed in the hot shutdown con-dition within 12 ho'urs. -

3.16.5 No report per specification 6.12.3.2 will be required unless the above requirements necessitate placing the reactor in the hot shutdown condition.

Bases Msintaining the steam generator feedwater within the limits of this specifi-cation will control the introduction of potentially corrosive impurities into the steam generators and minimize tube degradation.

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. TABLE 3.16-1 '

. Steam Generatorfmedwater Chemistry Limits - .

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Total Cation ConductivityL Solids .' . "I umhos/cm2 0 250 C: pil 0 250C ppb-Steady State .

Transient Liuits- - Limits Limits Limits ,

<0.5.  ;<1.0* 8. 5< . pil<9. 5 <50**

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• lay be increased to -2. 0 for the first 8' hours ' during'startup from llot Shutdown.

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• • ilay be increased to .100 for the first '8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> during startup from llot Shutdown.

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4.18 Secondary Water Chemistry Surveillance

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I g .icability Ap,slies to-the surveillance of steam generator feedwater chemistry.

pajective To verify that ' secondary water chemistry is within the limits of specifi-cation 3.16.

Specification At ,least 5 times per week determine that steam generator feedwater chemistry is within the total cation conductivity limits of specification 3.16, Table 3.16-1.

Bases This monitoring provides reiasonable assurance that the potential for undue steam generator tube degrajation has been minimized.

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