ML18003A901
| ML18003A901 | |
| Person / Time | |
|---|---|
| Site: | Harris  |
| Issue date: | 06/13/1983 |
| From: | Mcduffie M CAROLINA POWER & LIGHT CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| LAP-83-201, NUDOCS 8306160116 | |
| Download: ML18003A901 (6) | |
Text
REGULATO INFORMATION DISTRIBUTION STEM (BIDS)
ACCESSION NBR:8306160116 DOC ~ DATE: 83/06/13 NOTARIZED:
NO FACIL;50-400 Shearon Har ris Nuclear Power Plant~
Unit 1~ Carol ina 50-401 Shearon Harris Nuclear Power Plant~
Unit 2i Carolina AUTH BYNAME AUTHOR AFFILIATION MCDUFFIE~M~ A.
Carolina Power 8 Light Co ~
RECIP ~ NAME RECIPIENT AFFILIATION DENTONgH ~ RE Office of Nuclear Reactor Regulationc Director
SUBJECT:
Forwards responses to Power Sys Branch draft SER Open Item 117 re cooling water-leakage, Impact of flooding from postulated breaks in moderate energy fluid sys have no adverse effects on diesel generator areas.
DISTRIBUTION CODE:
B001S COPIES RECEIVED:LTR ENCL SIZE ~
TITLE: Licensing Submittal:
PSAR/FSAR Amdts L Related Correspondence NOTES; DOCKET 05000400 05000401 REC IP IENT ID CODE/NAME NRR/DL/ADL, NRR LB3 LA INTERNAL: ELD/HDS1 IE/DEPER/EPB 36 IE/DEQA/QAB 21 NRR/DE/CEB 11 NRR/DE/EQB 13 NRR/DE/MEB 18 NRA/DE/SAB 24 NRR/DE/SGEB 30 NRR/DHFS/LQB 32 NRR/DL/SSPB NRR/DS I/ASB NRR/DSI/CSB 09 NRR/DSI/METB 12 N
RAB 22 EG 04 DDAMI/MIB EXTERNAL: ACRS 41 DMB/DSS (AMDTS)
LPDR 03 NSIC 05 COPIES LTTR ENCL 1
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RECIPIENT ID CODE/NAME NRR LB3 BC KADAMBIgp 01 IE FILE IE/DEPER/IRB 35 NRR/DE/AEAB NRR/DE/EHEB NRR/DE/GB
.28 NRR/DE/MTEB 17 NRR/DE/SGEB 25 NRR/DHl'"S/HFEB40 NRR/DHFS/PSRB NRR/DSI/AEB 26 NRR/DS I/CP8 10 NRR/DSI/ICSB 16 NRR/DSI/PSB 19 NRR/DS I/RSB 23 RGN2 BNL(AMDTS ONLY)
FEMA REP DIV 39 NRC PDR 02 NTIS COPIES LTTR ENCL 1
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,TOTAL NUMBER OF COPIES REQUIRED:
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Carolina Power & Light Company JUIIJ l3 ]g83 SERIAL:
LAP-83-201 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation United States Nuclear Regulatory Commission Washington, DC 20555 SHEARON HARRIS NUCLEAR POWER PLANT UNIT NOS ~
1 AND 2 DOCKET NOS ~ 50-400 AND 50-401 DRAFT SAFETY EVALUATION REPORT RESPONSES POWER SYSTEMS BRANCH
Dear Mr. Denton:
Carolina Power
& Light Company (CP&L) hereby transmits one original and forty copies of a response to a Shearon Harris Nuclear Power Plant Draft Safety Evaluation Report Open Item.
This response is for the Power Systems
- Branch, and is CP&L Open Item No.
117.
We will be providing responses to other Open Items in the Draft Safety Evaluation Report shortly.
Yours very truly, M. A. McDuffie Senior Vice President Engineering
& Construction JDK/lcv (6939JDK)
Attachment Mr. Wells Eddleman Dr. Phyllis Lotchin Mr. John D. Runkle Dr. Richard D. Wilson Mr. G.
O. Bright (ASLB)
Dr. J.
H. Carpenter (ASLB)
Mr., J.'. Kelley (ASLB) 411 Fayetteville Street o P. O. Box 1551 o Raleigh, N. C. 27602 cc:
Mr. N. Prasad Kadambi (NRC)
Mr. G. F. Maxwell (NRC-SHNPP)
Mr. J.
P. O'Reilly (NRC RII)
Mr. Travis Payne (KUDZU)
Mr. Daniel F,. Read (CHANGE/ELP)
Chapel Hill Public Library Wake County Public Library 8306160l f6 830613 PDR ADOCK 05000400 E
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SHEARON HARRIS NUCLEAR POWER PLANT DRAFT SER ITEM NOe 117 (FSAR SECTION 9 ~ 5 ~ 5 ~
R NRC UESTION 430'5)
Consideration of cooling water leakage with respect to NRC Question 430.35 response.
NRC Clarification of SER Item No.
117 The conclusion in the response to NRC question 430.35 requires additional information.
Did the evaluation consider floor drain removal of cooling water or were there facility design features provided to separate the diesel generators from flooding effects?
~Res ense The Emergency Diesel Generator Building cooling water flooding analysis did not take credit for removal of leaking cooling water by the building's floor drain system.
Facility design features provide for the effects of potential flooding and the unaffected diesel generator area will not be affected by the leaking cooling water.
Diesel generator building room arrangements, as shown on Figures
- 1. 2. 2-86, and
- 1. 2. 2-87, preclude large water inventory buildup in the building, and prevent flooding in one diesel generator area from impacting on other diesel generator areas.
As described in FSAR Section 9.5.5.3 the sumps in the diesel generator areas are provided with level switches for sump pump start-up.
Pump actuation is annunciated in the control room.
The sump pump annunciation will alert the operators to possible leaking fluid and potential flooding.
Additionally, as shown on Figure 9.5.5-2, Amendment No. 5, the sump drain piping is valved and physically arranged so as to preclude the effects of flooding in one diesel generator area from affecting the other areas.
Therefore, the impact of flooding from postulated breaks in moderate energy fluid systems has been considered in system and facility design and has been determined by analysis to have no adverse effects on diesel generator areas where the postulated break did not occur.
(6 939JDKlcv)
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