ML021330196

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Technical Specifications, Issuance of Amendment Drywell Average Air Temperature Increase
ML021330196
Person / Time
Site: Limerick  Constellation icon.png
Issue date: 05/09/2002
From:
NRC/NRR/DLPM
To:
Exelon Generation Co
Gratton C, NRR/DLPM 415-1055
References
TAC MB2192, TAC MB2193
Download: ML021330196 (2)


Text

CONTAINMENT SYSTEMS flRYWFI AVERAGE AIR TEMPERATURE LIMITING CONDITION FOR OPERATION 3.6.1.7 Drywell average air temperature shall not exceed 145°F.

APPLICABILITY: OPERATIONAL CONDITIONS 1, 2, and 3.

ACTION:

With the drywell average air temperature greater than 145°F, reduce the I average air temperature to within the limit within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

SURVEILLANCE REQUJIREMENTS 4.6.1.7 The drywell average air temperature shall be the volumetric average of the temperatures at the following locations and shall be determined to be within the limit at least once per 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />s:

Approximate Number of Elevation Installed Sensors*

a. 330' 3
b. 320' 3
c. 260' 3
d. 248' 6
  • At least one reading from each elevation is required for a volumetric averaqe calculation.

LIMERICK - UNIT 1 3/4 6-10 Amendment No. 2-9, 159

CONTAINMENT SYSTEMS DRYWELL AVERAGE AIR TEMPERATURE LIMITING CONDITION FOR OPERATION 3.6.1.7 Drywell average air temperature shall not exceed 145°F. I APPLICABILITY: OPERATIONAL CONDITIONS 1, 2, and 3.

ACTION:

With the drywell average air temperature greater than 145°F, reduce the average air temperature to within the limit within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

SURVEILLANCE REOUIREMENTS 4.6.1.7 The drywell average air temperature shall be the volumetric average of the temperatures at the following locations and shall be determined to be within the limit at least once per 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />s:

Approximate Number of Elevation Installed Sensors*

a. 330' 3
b. 320' 3
c. 260' 3
d. 248' 6
  • At least one reading from each elevation is required for a volumetric average calculation.

LIMERICK - UNIT 2 3/4 6-10 Amendment No. 121