ML20099E062

Comment Opposing Proposed Rule 10CFR50.63, Loss of All AC Power

ML20099E062
Person / Time
Site:	Palo Verde
Issue date:	07/29/1992
From:	Conway W ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	Chilk S NRC OFFICE OF THE SECRETARY (SECY)
References
FRN-57FR14514, RULE-PR-50 102-02220-WFC-J, 102-2220-WFC-J, 57FR14514-00029, 57FR14514-29, NUDOCS 9208100008
Download: ML20099E062 (2)

Text

_ . _ . . _ _ _ _ _ _ _ _ _ . .___

0 ..

, ^l' ^:! 5 0 _

( 5 9 FIC IH 514)

iWi" .23 '

Arizona Public Service Company e o dol ( 8,3999 e PHO(NIX ArillDNA B$07;'-3999 tEvTNetiEE, 102-02220-WFC/JN!

• * ^ " July 29, 1992

• ftu ~

,s'b '

t. tw , - t Mr. Samuel J. Chilk Secretary of the Commission i

.U. S. Nuclear Regulatory Commission Washington, DC 20555

Dear Mr-,

Chilk:

Subject:

Palo Verde Nuclear Generating Station (PVNGS)

Units 1,2, and 3 ,

Docket Nos. STN 50-528/529/530 _  ;

Comments on the Proposed Amendment to 10 CFR 50.63," Loss of all Alternating Current Power," 57 Fed. Reg.14514, April 21,1992 ElleL92 056-02A Arizona Public Service Company has reviewed the proposed revision to 10 CFR 50.63 and the comments submitted to the NRC by the Nuclear Management and Resources Council (NUMARC). We fully endorse the. position taken by NUMARC that the rule  ;

change is unnecessary for the following reasons:

• - It does not result in an increase in safety; indeed it may decrease safety by the eccelerated testin0 required of the Emergency Diesel Generators, o The Intended goal of Generic Safety issue B 56 is being met, o The requirements are essentially redundant to the Maintenance Rule, 10 CFR 50.65, o Additional enforcement authority is unnecessary. ,

We thereforo _ urge the Commission to abandon promulgation of this proposed amendment.

9200100008.920729

- P 3R PR

~

h V

' 5) .57FR14514_ PDR

- -. . . + . . , . - , - . . - . - , -- - , - - . - - . - - . - - . - - . . . . . . - - - -

102-02220-WFC/Jfil

July 29, 1992 Mr. Samuel J. Chilk Secretary of the Commission U. S. Nuclear Regulatory Commission Comments on Proposed Amendinent to 10 CFR 50.63 Page 2 If you have any questions, please call Thomas R. Bradish of my staff at (602) 393-5421.

L' Sincerely, hy' $7%d',

~

0 WFC/JNllini Enclosures cc: J. B. Martin D.H.Coe C. F. Tedford W ti. Rasin (NUMARC)

I e

, , , , , . . . , , , , ., .