ML19326C693

From kanterella
Jump to navigation Jump to search
Requests Review of ECCS Capabilities & Operating Procedures to Assure Boron Precipitation Would Not Compromise long-term Core Cooling After Loca.Response Due within 30 Days
ML19326C693
Person / Time
Site: Arkansas Nuclear Entergy icon.png
Issue date: 03/14/1975
From: Ziemann D
Office of Nuclear Reactor Regulation
To: Phillips J
ARKANSAS POWER & LIGHT CO.
References
NUDOCS 8004250506
Download: ML19326C693 (3)


Text

. _ _.

1-

.09

,,.a.

=

lk

~~

5*

Q-w-

~

~ '

4

~

+

i Docket.No. 50-313 7

_ y.-

%.t J

3

...y

, c.

+

c

..l

-l}

C ^~

q..

l

.r'.

.l

=

r p

4,

.c

~

33 wy.7, n

[

Arkansas Power' 5 Light Company ATTN:

Mr. D. Phillips

~

Senior Vice President 1

Production, Transmission ~,

THIS DOCUMENT CONTAIgg'-

4

~

and Engineering sixth and Pine f.reets P00R QUALITY PAGES Pine Bluff, Ark: nsas 71601 Gentlemen t

3; Although your%rgency core cooling sy generally satisfy our-

~

requirements wid rusard to long-tern sooling, the systen senfigurations have not been specifically evaluated to show that significant changes in chemical concentrations would not occur during the long tern after.

a loss-of-ooolant accident (IDCA) and these potential changes have met been specifically addressed by appropriate operating procedures.

Accordingly, you should review your system capabilities and operating procedures to assure that beren precipitation would not compromise j

long-tern sore eecling onpability following a I4CA. This soview should consider all aspects of your design including canyonent quali-fication in the IDCA environ:2ent'in addition to a detailed review of operating procedures. 'You obeeld examine the vulnerability of your design to single failures that-would result in my signifissat bezon i

precipitation.

You should submit this evaluation and associated operating procedures within'30 days of receipt of this letter. These procedures should be promptly effected to assure that borea precipitation would not interfere with the ability of your fasility to seaform to Criterion ($J)of f' i

10 CPR 50.46(b). We will infera you as ta the acceptability of your evaluation and associated operating precedures.

I

,y s

f 1

a M-oF F8C a y

... ~.....

g,7 DArsk Fete AEC.)la (Rev. 9-53) AECM O240 W u. a. aovanmaassv eniurina oppicsa sore.sas. tee

  • b*

a

'..- O, y, 3:.

k y-m.

g a

m i'jCc..

,~.

'C' 3y Arkansas Power & Light Company

-. 2 -

.g t 41g75

. Vi/~

/+a v

l '

  • 1

(*

g

'While solute concentrations nay be subject to contzol through operating procedures, equipment modifications may be required

,, $jh q.4

.g or desirable to simplify such procedures. Your submittal should

~ //.Q7.jk.

~ include a plan for completing such modifications within six months q s tf

,U WK^

%dNN!!U?k. *I l

~ of the date of this letter.

1

.- a y : +

, p; y x s

~ < )Lhygg l

This request for generic information was approved by GAO under T _; -

l a blanket clearance numbar B-180225.(R0072); this clearance exp. res y;

July 31, 1977.

,s.n..,.

s N'

'g.

  • Sincerely, T;ep-

.myy orh@ d 5188'd #

' ~

. ~ g* ~

~

$.h,- -

a -,

p L. p awn

.e

~:w I

a v.

Dennis L. Ziemann, Chief

  • 83?

A Operating Reactors Branch #2-

. -> :.LI f Division of Reactor Licensing

_ ~"

b cc: see next pa p

~

f DISTRIBITTION NRC PDR Local PDR m.,

l

.A. Docket File r

ORB #2 Reading

i-

?

KRGoller l

TJCarter 1

OELD OISE (3)

+ -

1 DLZiemann FDAnderson i

RKIngram VStello i

JRBuchanan, ORNL TBAbernathy, DTIE j

SVarga ACRS (12)

~e"

~

l t

,4 a-LI l

's

~

1 y

  • y g

i

.w.

l

[p/~

/

'/

\\

.W*i ame =

  • R:
  1. 2

. RL;. ORB #:2..

F.

erson:aw DLZiemann

~

=~a

  • 3//p75

..../._._...

t 3/ /7S

..o i

oats >

Form ABC-318 (Rev. 9-53) ABCM 0240

  1. u. se sovsannesNT par

= onicas sera.sas.see t

-)e T... * / ~',* ', -

1

-4 m.

N Arkansas Power & Light Company.

cc Horace Jewell House, Holms & Jewell 1550 Tower Building Little Rock, Arkansas 72201 Mr. William Cavanaugh, III Production Department Post Office Box 551 Little Rock, Arkansas 72203 Arkansas Polytechnic College Russellville, Arkansas 72801 4

3 4

4

_ _ -