ML102000594

Email Draft RAI for Temporary Exemption from 50.46 and App. K

ML102000594
Person / Time
Site:	Palo Verde
Issue date:	02/24/2010
From:	Hall J Plant Licensing Branch IV
To:	Stroud R Arizona Public Service Co
Hall, J R, NRR/DORL/LPL4,301-415-4032
Shared Package
ML102000593	List: ML102000581 ML102000594
References
TAC ME2590
Download: ML102000594 (1)

Text

DRAFT REQUEST FOR ADDITIONAL INFORMATION ARIZONA PUBLIC SERVICE COMPANY, ET. AL.

PALO VERDE NUCLEAR GENERATING STATION UNIT 3 DOCKET NO. STN 50-530 REQUEST FOR TEMPORARY EXEMPTION FROM PROVISIONS OF 10 CFR 50.46 AND 10 CFR 50 APPENDIX K TAC NO. ME2590

1. Specify clearly and explicitly the type of current (resident) fuel in PVNGS Unit 3 core.

Also specify the topical report (TR) related to this fuel. If there has been any modification of the fuel assembly from the specifications described in the TR, provide the new information.

2. Specify clearly and explicitly the details of the Lead Fuel Assemblies (LFAs) PVNGS has requested to be inserted in to the Unit 3 core during the Fall 2010 refueling outage.

3. Please provide details such as type of assembly (generic names), types of grids for each assembly (Top grid, mid grids (vaned or not), whether there are any IFM grids, bottom grids), material of grids, fuel rod dimensions (specifically fuel rod diameter) for both the LFAs and co-resident fuel in PVNGS Unit 3 core. A table similar to Table 2-1 of WCAP-16500-P-A comparing/contrasting the above details for the LFAs and the co-resident fuel would enable the staff to fully understand the make-up of the core for a complete review of the application.

4. Specify what fraction of the total number of fuel rods of the LFAs will be clad in Optimized ZIRLO.

5. Provide the details regarding the critical heat flux (CHF) correlations recommended by the fuel vendor(s) for the LFAs and the resident fuel in PVNGS Unit 3 core for the proposed upcoming cycle.