ML20063B012

Proposed Tech Spec 5.6.1 Re Fuel Storage Criticality & 5.6.3 Re Fuel Storage Capacity

ML20063B012
Person / Time
Site:	North Anna
Issue date:	08/20/1982
From:	VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
Shared Package
ML20063B001	List: ML20063A999 ML20063B012 ML20063B032
References
NUDOCS 8208250154
Download: ML20063B012 (5)

Text

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DESIGN FEATURES

a. In accordance with the code requirements specified in Section 5.2 of the FSAR, with allowance for normal degradation pur-suant to the applicable Surveillance Requirements,

b. For a pressure of 2485 psig, and

c. For a temperature of 650*F, except for the pressurizer which is 680*F.

VOLUME e 5.4.2 The total water and steam volume of the reactor coolant system is 9957 10 cubic feet at a nominal T avg of 525'F.

5.5 METEOROLOGICAL TOWER LOCATION 5.5.1 The meteorological tower shall be located as shown on Figure 5.1-1.

5.6 FUEL STORAGE CRITICALITY 5.6.1.1 The spent fuel storage racks are designed and shall be maintained with:

a. Ak equivalent to less than or equal to 0.95 when flooded with eff unborated water, which includes a conservative allowance of 3.4%

delta k/k for uncertainties,

b. A nominal 10 9/16 inch center-to-center distance between fuel assemblies placed in the storage racks.

5.6.1.2 The new fuel pit storage racks are designed and shall be maintained with a nominal 21 inch center-to-center distance between new fuel assemblies such that, on a best estimate basis, k w exceed .98, with fuel of the highest anticipated enrichment in pYace,ill not when aqueous foam moderation is assumed.

5.6.1.3 If new fuel for the first core loading is stored dry in the spent fuel storage racks, the center-to-center distance between the new fuel assemblies will be administratively limited to 28 inches and the k shall not exceed 0.98 when aqueous foam moderation is assumed. ,

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NORTH ANNA - UNIT 1 .

5-5 l 8208250154 820820 1 PDR ADOCK 05000338 i p PDR

DESIGN FEATURES DRAINAGE 5.6.2 The spent fuel pit is designed and shall be maintained to prevent  !

inadvertent draining of the pool below elevation 288.83 feet. Mean Sea Level, USGS datus.

CAPACITY 5.6.3 The fuel storage pool is designed and shall be maintained with a storage capacity limited to no more than 1737 fuel assemblies. l 5.7 COMPONENT CYCLIC or TRANSIENT LIMIT 5.7.1 The components identified in Table 5.7-1 are designed and shall be maintained within the cyclic or transient limits of Table 5.7-1.

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i NORTH ANNA - UNIT 1 5-6 -

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e ATTACHMENT 2 PROPOSED TECHNICAL SPECIFICATION CHANGES - UNIT 2

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. D DESIGN FEATURES _

5.5 METEOROLOGICAL TOWER LOCATION 5.5.1 The meteorological tower shall be located as shown on Figure 5.1-1.

1 5.6 FUEL STORAGE CRITICALITY 5.6.1.1 The spent fuel storage racks are designed and shall be maintained with:

a. Ak ff equivalent to less than or equal to 0.95 when flooded with unborated water, which includes a conservative allowance of 3.4%

delta k/k for uncertainties.

b. A nominal 10 9/16 inch center-to-center distance between fuel assemblies placed in the storage racks.

5.6.1.2 The new fuel pit storage racks are designed and shall be maintained with a nominal 21 inch center-to-center distance between new fuel assemblies such that, on a best estimate basis, k will not exceed .98, with fuel of the highest ff anticipated enrichment in pIace, when aqueous foam moderation is assumed.

5.6.1.3 If new fuel for the first core loading is stored dry in the spent fuel storage racks, the center-to-center distance between the new fuel assemblies will be administratively limited to 28 inches and the k shall not exceed 0.98 when aqueous foam moderation is assumed.

• I DRAINAGE 5.6.2 The spent fuel pit is designed and shall be maintained to prevent inadvertent draining of the pool below elevation 288.83 feet Mean Sea Level, USGS datum.

CAPACITY 5.6.3 The fuel storage pool is designated and shall be maintained with a storage capacity limited to no more than 1737 fuel assemblies.

I i NORTH ANNA - UNIT 2 5-5

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ATTACHMENT 3 A

SUMMARY

OF INFORMATION IN SUPPORT OF INCREASING THE SPENT FUEL STORAGE CAPACITY AT NORTH ANNA UNITS 1 AND 2