ML18003A878

Forwards Response to Draft SER Open Item 210 Re Results of Evaluation of Chemical & Vol Control Sys Malfunction Event. Transient Scenario Would Not Experience Significant Change Except for Delay of Pressurizer Low Pressure Trip

ML18003A878
Person / Time
Site:	Harris
Issue date:	06/02/1983
From:	Mcduffie M CAROLINA POWER & LIGHT CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
References
LAP-83-140, NUDOCS 8306060152
Download: ML18003A878 (10)

Text

REGULATOR NFORMATION DISTRIBUTION TEM (RIDS)

ACCESSION NBR: 8306060152 DOC ~ DATE: 83/06/02 NOTARI'ZED:

NO FACIL:50 F00 Shearon Harris Nuclear Power Plant~

Uni t 1 ~ Carolina SO"401 Shearon Harris Nuclear Power PlantP Unit 2~

Car oli,na AUTH BYNAME AUTHOR AFFILIATION MCDUFFIEgM>>A, Carolina Power 8 Light Co ~

REC IP ~ NAME RECIPIENT AFFILIATION DENTONrH ~ RE Office of Nuclear Reactor RegulationE Director SUBJECT!

Forwards response to draft SER Open Item 210 re results of evaluation of chemical 8 vol control sys malfunction event, Transient scenario would not experience significant change except for delay of pressurizer low pressure trip.

DISTRIBUTION CODE:

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TITLE: Licensing Submittal>>

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Carolina Power & Light Company r

MIJN 03 >983 SERIAL:

LAP-83-140 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 REACTOR SYSTEMS BRANCH

Dear Mr. Denton:

Carolina Power 5 Light Company (CPKL) hereby transmits one original and forty copies of the response to the Shearon Harris Nuclear Power Plant Draft Safety Evaluation Report (DSER)

CPAL Open Item No. 210.

Carolina Power

& Light Company will be providing responses to other Open Items in the DSER shortly.

Yours very truly, PS/cfr (6738PSA)

Attachment M. A. McDuffie Senior Vice President Engineering

& Construction cc:

Mr. N. Prasad Kadambi (NRC)

Mr. Evangelo Marinos (NRC-RSB)

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 Mr. Wells Eddleman Dr. Phyllis Lotchin Ms. Patricia T.

Newman Mr. John D. Runkle Dr. Richard D. Wilson Mr. G. 0. Bright (ASLB)

Dr. J.

H. Carpenter (ASLB)

Mr. J. L. Kelley (ASLB) 830bOb0152 830b02 PDR ADOCK 05000400 E

PDR 411 Fayettevllle Street

~ P. O. Box 1551 o Raleigh, N. C. 27602

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OPEN ITEM No. 210 (DSER Section 'l5.5, page 15-24)

Provide the results of the evaluation of the Chemical and Volume Control System malfunction event (Q 440. 132).

RESPONSE

TO OPEN ITEM No. 210 This concern was previously presented as FSAR Safety Review Question 440. 132.

Attachment I provides the response to Question 440. 132.

ATTACHMENT I

Response

to FSAR Safety Review Question 440. 132

0UESTION 440.132 (15.5):

Your response to question 440.93 is not clear.

Mould the power increase caused by the iniection of cold unborated water chanae the transient scenario7 If so, provide verification that this does not present a worse case transient.

RESPONSE

The SI system purge volume between'the BIT and the cold legs is approximately 8

FT This volume, if cold and unborated, is purged in a very short period 3

by the Safety Injection System and immediately followed by 20000 ppm borated water from the BIT.

This could result in a slight power increase similar to the boron dilution event and would be overridden by the borated water from the BIT.

The transient scenario would not experience any significant change with the exception of the Pressurizer L'ow Pressure trip being delayed.

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