ML20205D077

Proposed Tech Specs,Clarifying Bases for Raising Keff of Fuel Pool to Industry Std & Adding K-infinity to Fuel Pool Limiting Conditions for Operation

ML20205D077
Person / Time
Site:	Pilgrim
Issue date:	09/17/1985
From:	BOSTON EDISON CO.
To:
Shared Package
ML20205D051	List: BECO-85-168, Supplemental Application for Amend to License DPR-23, Revising Tech Specs to Clarify Bases for Raising K Eff of Fuel Pool to Industry Std & Adding K-infinity to Fuel Pool Limiting Conditions for Operation ML20205D077
References
NUDOCS 8509230408
Download: ML20205D077 (1)

Text

e d 5.5 FUEL STORAGE A. The new fuel storage facility shall be such that the K.,, dry is less than 0.90 and flooded is less than 0.95.

B. The K.,, of the spent fuel storage pool shall be less than or equal to 0.95.

C. Fuel assembly in the spent fuel pool shall have a maximum K-infinity less than or equal to 1.35.

D. The number of spent fuel assemblies stored in the spent fuel pool shall not exceed 2320.

E. Loads in excess of 1000 lbs. shall be prohibited from travel over fuel assemblies in the spent fuel storage pool.

F. No fuel which has decayed for less t>a 200 days shall be stored in racks within an arc described by the height of the cask around the periphery of the energy absorbing pad.

5.6 SEISMIC DESIGN The station Class I structures and systems have been designed for ground accelerations of 0.08g (design earthquake) and 0.15g (maximum credible earthquake).

BASES:

5.5 FUEL STORAGE The fuel storage assembly K-infinity in Section 5.5.C refers to the maximum K-infinity for the standard reactor core geometry. It is shown in the FSAR that storage of fuel assemblies with a K-infinity <l.35 would result in a K.,, <0.95, including uncertaintles, for both normal and abnormal storage condi tions .

8509230408 850917 DR ADOCK O g3 Amendment No. 207