ML17298A694

Forwards Supplemental Info to 830414 Response to Suppl 1 to NUREG-0737.Info Reflects Clarification of Reg Guide 1.97 Exception.Two Ranges of Vertical Temp Difference (Delta Temp) Utilized at Facilities

ML17298A694
Person / Time
Site:	Palo Verde
Issue date:	12/02/1983
From:	Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	Knighton G Office of Nuclear Reactor Regulation
References
RTR-NUREG-0737, RTR-NUREG-737, RTR-REGGD-01.097, RTR-REGGD-1.097 ANPP-28344, NUDOCS 8312130214
Download: ML17298A694 (10)

Text

vga REGULATO INFORMATION DISTRIBUTION TEM (RIDS)

ACCESSION NBR; 8312130214 DOC ~ DATE: 83/12/02 NOTARIZED; YES DOCKET FACIL:STN-50-528 Palo Verde Nuclear Stationq Unit i~ Arizona Publi 05000528 STN 54 529 Palo Verde Nuclear. Stations Unit ?i Arizona Publi 05000529 SfN-50-530 Palo Verde Nuclear Stationg Unit 3i Arizona Publi 05000530 AUTH, NAME AUTHOR AFF ILIATION VAN BRUNTiE ~ E ~ Arizona Public Service Co, RECIP ~ NAME RECIPIENT AFFILIATION KNIGHTONg G ~ Licensing Branch 3

SUBJECT:

For wards supplemental info to 830414 response to Suppl 1 to NUREG 0737, Info reflects clarification to Reg Guide 1 ~ 97 exceptions Two ranges of vertical temp difference .(delta temp) utilized at .facilities, DISTRIBUTION CODE: A003S GOf IES RECEIVEDsLTR ENCL SIZE;,

TITLE: OR/Licensing Submittal: Suppl 1 to NUREG 0737(Generic Ltr 82-'33)

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NOTES:Standardized plant, 05000528 Standardized plant ~ 05000529 Standardized plant ~ '5000530 RECIP IENT COPIES RECIPIENT COPIES ID CODE/NAME t.TTR'" ENCL ID CODE/NAME LTTR ENCL NRA .LB3 BC 7 7 INTERNALS IE/DEPER/EPB 3 3 NRR/DHFS/HFEB 5 5 NRR/DHFS/PSRB NRR/DL/ORAB" 1 1 NRR/DL/ORB5 5 '5 NRR/DS I/CPB 1 1 NRR/DSI/ICSB 1 1 NRR/DS I/METB 1 NRR/DSI/RA 8 1 1 NRR RSB 1 1 OR85 PAUL'SONgN 1 1 Rk FILES 1 1 RGN5 1 EXTERNALS LPDR 1 NRC PDR NSIC i 1 NTIS TOTAL NUMBER OF COPIES REQUIRED: LTTR 34 ENCL 34

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Arizona Public Service Company P.o. BOX 21666 ~ PHOENIX. ARIZONA 65036 December 2, 1983 ANPP-28344 WFQ/MAJ Director of Nuclear Reactor Regulation Attention: Mr. George Knighton, Chief Licensing Branch No. 3 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Subject:

Palo Verde Nuclear Generating Station (PVNGS)

Units 1, 2 and 3 Docket Nos. STN-50-528/529/530 File: 83-056-026; G.1.01.10'eference:

Letter to G. W. Knighton, NRC, from E. E. Van Brunt, Jr, APS, (ANPP-23505), dated April 14, 1983,

Subject:

Response to Supplement 1 to NUREG-0737

Dear Mr. Knighton:

Attached is supplemental information to the above referenced letter.

This additional information reflects a clarification to an exception to R.G.1.97 contained in Table 1, Footnote (4). The attached pages (16 and 16-A) supersedes page 16 in Attachment 3 of the referenced letter.

If you have any questions, please call me.

Very truly your E. E. Van Brunt, Jr.

APS Vice President Nuclear Projects Management ANPP Project Director EEVB/MAJ/sp Attachment cc: E. A. Licitra (w/a)

A. C. Gehr 83i2i 302i 4 831202 PDR ADOCu OSO00528  !

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P December 2, 1983 ANPP-28344 MFO/VAJ STATE OF ARIZONA )

) ss. A COUNTY OF MARICOPA) r I

I, Edwin E. Van Brunt, Jr., represent that am Vice President Nuclear Projects of Arizona Public Service Company, that the foregoing, document has been signed by me on behalf of Arizona Public Service Company with full authority so to do, that I have read such document and know its contents, and that to the best of my knowledge and belief, the statements made therein are true.

Edwin E. Van Brunt, Jr.

Sworn to before me this~~day of , <983. '

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ln~5z Nota.".~",'Pu7ll

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Commission expires:

My CoNndssion Expires Apll 6. 1987

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Page 16 Table 1 APS RESPONSE TO REGULATORY GUIDE 1.97 REQUIREMENTS NOTES

1. LIST OF ABBREVIATIONS ASSUR Assurance BATT Battery CEA Control Element Assembly CR Control Room ENVIR Environmental EOF Emergency Operations Facility FP Full Power IN Inches M

MCB Micro + )

Main Control Board PMS Plant Monitoring System (Plant Computer)

PPS Plant Protection System QUAL Qualification RCP Reactor Coolant Pump RHR Residual Heat Removal SEIS Seismic S/G Steam Generator TSC Technical Support Center

2. FOOTNOTES (1) Reg. Guide 1.97, Rev. 2, Category 2 sensors shall be qualified ,in accordance with Regulatory Guide 1.89 (NUREG-0588). Seismic Qualification in accordance with Regulatory Guide 1.100 shall be provided when the instrumentation is part of a safety related system.

(Reference Independent Design Review of the PVNGS Instrumentation and Controls Systems, June 17-18, 1981, pages 2C3-1 through 2C3-28). The components qualified seismic 2 are given in the reference. This complies with the Regulatory Guide.

(2) Vent flow calculations are performed using the design flow of heating, ventilation, and air conditioning fans versus measured flow.

(3) Heat removal by containment fan heat removal system indication is accomplished using the containment atmospheric temperature monitors listed with R.G. 1.97.

ll Page 16-A Table 1 APS RESPONSE TO REGULATORY GUIDE 1.97 REQUIREMENTS NOTES PVNGS utilizes two ranges of vertical temperature difference (delta temperature). One range is -6o to +6oF with the portion from -5 to +5 F being calibrated. The range from, -6 to +18 F, is for extended range indication beyond +6 F. Tnus PVNGS meets the ranges required by R.G.1 .23 (normalized for the PVNGS tower height) for the Pasquill Categories indicated that are used for the atmospheric stability class calculations. The PVNGS delta temperature range has also proven to be adequate and reliable; evidenced by historical data at the location.

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