ML17215A684

From kanterella
Jump to navigation Jump to search
Advises That Intake Structure Pump Encl Fan Housing & Condensate Storage Tank Vent Hood Housing Modified,Per Sser 2 (NUREG-0843).Reactor Auxiliary Bldg Sliding Door Satisfies NRC Allowable Ductility Factor
ML17215A684
Person / Time
Site: Saint Lucie NextEra Energy icon.png
Issue date: 11/29/1984
From: Williams J
FLORIDA POWER & LIGHT CO.
To: John Miller
Office of Nuclear Reactor Regulation
References
RTR-NUREG-0843, RTR-NUREG-843 L-84-343, NUDOCS 8412070181
Download: ML17215A684 (3)


Text

REGULATO INFORMATION DISTRIBUTION TEM (RIDS)

ACCESSION NBR: 8412070 i 81 DOC ~ DATE: 84/11/29 NOTARIZED: NO, DOCKET FACIL!50 389 St., Lucie Plant~ Unit 2i Flor ida Power 8 Light Co. 05000389 AUTH",NAME AUTHOR AFFILIATION WILLIAMS' ~ W. F l or i de Power 8 Light Co.

RECIP ~ NAME RECIPIENT AFFILIATION MILLER' ~ R ~ Operating Reactors Branch 3 SUBJECT!'dvises that intake structur e pump enc] fan housing condensate storage tank vent". hood housing modi f i ed'er-SSER 2 (NUREG 0843) Re'actor auxiliary bldg sliding door

~

satisfies NRC allowable ductility factor DI'STRIBUTION CODE! A001D COPIES RECEIVED: LTR 'NCL SIZE:

TITLE! OR" Submi t ta1: General Di str ibut i on NOTES>> 05000389 OL'04/06/83, RECIPIENT COPIES RECIPIENT ~

COPIES ID CODE/NAME LTTR ENC ID CODE/NAME LTTR ENCL" NRR ORB3 BC 01 7 INTERNAL; ACRS 09 ADM/LFMB ELD/HDS2 NRR/DE'/MTEB NRR/DL" DIR NRR/DL/ORAB Nft 'TB NRR/DSI/RAB F E RGN2 EXTERNAL; LPDR 03'5 NRC 'PDR NSIC NTIS 02'OTAL NUMBER OF COPIES REQUIRED: LTTR 26 ENCL 2

3 fl R R R

'f ff fl 'hf R f fl

~ Rl M hf 3 I 31 3

Rf f, h hf,'R' R

. BOX 14000, JUNO BEACH, F L 33408

~i% I/i

~alii~,~~4 FLORIDA POWER 5 LIGHT COMPANY November 29, 1984 L-84-343 Office of Nuclear Reactor Regulation Attention: Mr. James R. Miller, Chief Operating Reactors Branch, IE3 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Dear Mr. Miller:

Re: St. Lucie Unit No. 2 Docket No. 50-389 Tornado Missile Protection The St. Lucie Unit 2 Safety Evaluation Report (NUREG-0843) Supplement No. 2, Section 3.5.3 identified three structures requiring strengthening because the design ductility ratio was greater than that allowed by the NRC staff. Two of these structures, the Intake Structure Pump enclosure fan housing and the Condensate Storage Tank vent hood housing, were modified as required. The third structure, the Reactor Auxiliary Building sliding door, was not modified because the certified material test report for the structural member in question specified an actual yield stress of 59 ksi, rather than the 50 ksi assumed in the original design. Therefore, the unmodified structure satisfies the NRC staff's allowable ductility factor, and no modification was necessary.

Very truly yours, J. W. Wi s, Jr.

~

Group VI e President Nuclear Energy JWW/R JS/kgn I

84 1 2070 1 8 1 841129 PDR ADOCK 0500038 E

PEOPLE... SERVING PEOPLE