ML20151H398

Requests That Response to NRC Position Re Source Range Neutron Flux Monitoring Be Expedited to Allow Completion of Review of Remaining Open Items Re App R Criteria for post-fire Safe Shutdown Capability

ML20151H398
Person / Time
Site:	Byron, Braidwood, 05000000
Issue date:	04/11/1983
From:	Youngblood B Office of Nuclear Reactor Regulation
To:	Farrar D COMMONWEALTH EDISON CO.
Shared Package
ML20151H337	List: ML20151H334 ML20151H398
References
NUDOCS 8305040062
Download: ML20151H398 (3)

Text

-

, .o DIST: ~

l Document Controll(STrf 50-454/455/456/457);r 5

i NRC'PDR L PDR APR 111983 PRC System NSIC LB#1 Rdg. (2)

MRushbrook (2)

Docket Nos.: STN 50-454, STN 50-455 JStevens and STN 50-456, STN 50-457 L01shan DEisenhut/RPurple Attorney, OELD tdr. Dennis L. Farrar ELJordan,DEQA:IE Director of Nuclear Licensing JMTaylor, DPR:IE Comonwealth Edison Company ACRS (10)

Post Office Box 767 OParr Chicago, Illinois 60690 JWermiel

Subject:

Positions Regarding Remaining Open Items Concerning Appendix R Criteria for Post-Fire Safe Shutdown - Byron /Braidwood Stations, Units 1 and 2 On March 23, 1983, the Auxiliary Systems Branch participated in a conference call with Comonwealth Edison Conpany to discuss the renaining open itens concerning the post-fire safe shutdown capability ( Appendix R, Sections III.G and III.L) for Byron /Braidwood. With the exception of two specific concerns, the applicant provided satisfactory verbal responses and comitted to document those responses in the near future.

The two renaining concerns involve 1) the staff position regarding the need for source range neutron flux nonitoring following a fire, and 2) the fire protection afforded redundant trains of safe shutdown instrumentation within the auxiliary electrical eouipment room. As requested by the aoplicant, enclosed is a copy of the staff position regarding source range neutron flux nonitoring. The enclosure consists of a staff nemorandun dated March 18, 1983, which has been endorsed by the Director of the Division of Systens Inteqration. It should be noted that we recuire a source range neutron flux ronitor be available independent of tnose areas identified by the applicant where the existing instrument would be lost due to a fire. Any new instrumentation need not be safety-related (Class 1E).

Also, as requested by the applicant, the Auxiliary Systen Branch consulted with the Chemical Engineering Branch concerning the applicant's position regarding the fire protection for the auxiliary electrical equipment roon which contains redundant divisions of many safe shutdown instruments. The Auxiliary Systens Branch was informed by the Chenical Engineering Branch that a position on this issue will be provided in the future during the course of their full Appendix R review for Byron /Braidwood.

8305040062 830411 PDR ADOCK 05000454 F PDR OFFICE) . . . . . . . . . . . . . . . . . . ....................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

sua m e> . . . . . . . . . . . . . . . . . . . . ...................... ...................... . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . .

oany ........................ . . . . . . . . . . . . . . . . . . . . ...................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . .

Nec ronu sia po-soi nscu o24o OFFICIAL RECORD COPY usam my--3&eso

~ _. .-. . _ _ . _ = _ . . . . .

. 1

!!r.* Dennis L. Farrar APR 111983 We reauest that you expedite your response to the enclosure so that we may complete our review of the Appendix R safe shutdown capability for Byron /Braidwood. For further information or clarification, please contact the Braidwood Project Manager, Jaitice A. Stevens, (301)492-7144 i Sincerely, Original al'g'ned by:

B. J. Youngblood.

B. J. Youngblood, Chief Licensing Branch No.1 Division of Licensing

Enclosure:

As stated cc w/ encl.: See next page i

E i

l i

l l

l t

t

>O /

i ornce> D,l.1.,B,. 1 , , , D,Lh . , , , , ,, , , , , , , , , , , , ,. . . . ... . . . . .

sunnme > ....l.g.... BJioul . ..o. od J.S.,t.e.ve g

, omy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. ... .. . . . . . . . . . . .

l NRC FORM 318 (10-80) NRCM 0240 OFFICIAL RECORD COPY usam. asi-m-om

DIST:

l Document l Control (STNL50-454/.455/456/457)J 5

s NRC~PDR L PDR APR 111983 PRC System m NSIC LB#1 Rdg. (2)

MRushbrook(2)

Decket Nos.: STN 50-454, STN 50-455 JStevens and STN 50-456, STN 50-457 L01shan DEisenhut/RPurple Attorney, OELD Pr. Dennis L. Farrar ELJordan, DEQA:IE Director of Nuclear Licensing JMTaylor, DPR:IE Comonwealth Edison Conpany ACRS (10)

Post Office Box 767 OParr Chicago, Illinois 60690 JWermiel

Subject:

Positions Regarding Renaining Open Itens Concerning Appendix R Criteria for Post-Fire Safe Shutdown - Byron /Braidwood Stations, Units 1 and 2 On March 23, 1983, the Auxiliary Systens Branch participated in a conference call with Comonwealth Edison Conpany to discuss the remaining open itens concerning the post-fire safe shutdown capability ( Appendix R, Sections III.G and III.L) for Byron /Braidwood. With the exception of two specific concerns, the applicant provided satisfactory verbal responses and comitted to docuatent those responses in the near future.

The two renaining concerns involve 1) the staff position regarding the need for snurce range neutron flux nonitoring following a fire, and 2) the fire protection afforded redundant trains of safe shutdown instrumentation within the auxiliary electrical ecuipment room. As requested by the applicant, enclosed is a copy of the staff position regarding source range neutron flux nonitoring. The enclosure consists of a staff nemorandum dated March 18, 1983, which has been endorsed by the Director of the Division of Systens Integration. It should be noted that we require a source range neutron flux ronitor be available independent of those areas identified by the I apolicant where the existing instrucent would be lost due to a fire. Any i new instrumentation need not be safety-related (Class 1E).

Also, as requested by the applicant, the Auxiliary Systen Branch consulted j with the Chenical Engineering Branch concerning the applicant's position reoarding the fire protection for the auxiliary electrical equipment roon l which contains redundant divisions of many safe shutdown instruments. The Auxiliary Systens Branch was infonwed by the Chenical Engineering Branch i that a position on this issue will be provided in the future during the l course of their full Appendix R review for Byron /Braidwood.

l 8305040062 830411 PDR ADDCK 05000454 F PDR OFFICE) ....................... ...................... . . . . . . . . . . . . . . . . .. . , .. . . . . .

sunusue> .................... . . . . . . . . . . . . . . . . . . . . . ...................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

oars) ........................ ...................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

NRC FORM 318 (10-80) NRCM 0243 OFFICIAL RECORD COPY usam mwm*o

3.

Dr.' Dennis L. Farrar -

2- APR 111983 We reauest that you expedite your response to the enclosure so that we may complete our review of the Appendix R safe shutdown capability for Byron /Braidwood. For further infomation or clarification, please contact the Braidwood Project Panager, Janice A. Stevens, (301)492-7144.

Sincerely,

~

Original sighed by B. J. Youngbloo(

B. J. Youngblood, Chief Licensing Branch No.1 Division of Licensing

Enclosure:

As stated cc w/ encl.: See next page 4

l l

1 i

i 1

i i

i l

p /

orneen D. .L. .:. .L. .B.. . D..L.b.h

. . . . . /$... ....... . . . . . . . . . . ... .. .. ..

.om , > 9.st.e.y,,, .,1 g.. B.g..gu:gd pod ,, , , , , , , , , , , , , ,, , , , , , , , , , , , ,, , , , , , , , ,

04/08/ 3 04/ 8,/83 oare > . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... .. .. . . . . . . . . . . . . . .

MRC FORM 318 (10-80) NRCM 024a OFF1CIAL RECORD COPY usam au-mm

. i

~. Mr. Dennis L. Farrar Director of Nuclear Licensing 1 Commonwealth Edison Company Post Office Box 767 Chicago, Illinois 60690 '

cc: Mr. William Kortier Dr/ Bruce von Zellen ,

Atomic Power Distribution Department of Biological Sciences Westinghouse Electric Corporation Northern Illinoi: University Post Office Box 355 '

DeKalb, Illinois 61107 -

Pittsburgh, Pennsylvania 15230-Myron Cherry, Esquiref Paul M. Murphy, Esq. Cherry & Flynn Isham, Lincoln & Beale Suite 3700 One First National Pir.za Three First National' Plaza 42nd Floor Chicago, Illinois 60602 Chicago, Illinois 60603 Mr. William Forney C. Allen Bock, Esquire U. S. Nuclear Regulatory Commission Post Office Box 342 Byron / Resident Inspectors Office Urbana, Illinois 61801 . 4448 German Church Road

_ Byron, Illinois 61010 Thomas J. Gordon, Esquire - -

Waaler, Evans & Gordon Ms. Diane Chavez 2503 S. Neil 326 N. Avon Street Champaign, Illinois 61820 '

Rockford, Illinois 61103 Ms. Bridget Little Rorem Mrs. Phillip'B. Johnson Appleseed Coordinator '

1907 Stratford Lane 117 North Linden Street Rockford, Illinois 61107 Essex, Illinois 60935 -

Joseph Gallo, Esq.

Mr. Edward R. Crass Isham, Lincoln & Beale Nuclear Safeguards and Licensing Division Suite 840 Sargent & Lundy Engineers 1120 Connecticut Avenue, N. W.

55 East Monroe Street Washington, D. C. 20036 Chicago, Illinois 60603 U. S. Nuclear Regulatory Commission Resident Inspectors Of fice RR#1, Box 79 ,

Braceville, Illinois 60407 Mr. James G. Keppler U. S. NRC, Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137

+

=