ML20129C201

Requests Approval to Use Code Case N-533 Which Provides Alternative Exam Requirements for Callaway Plant ISI Program Plan for Removal of Insulation from pressure-retaining Bolted Connections to Perform VT-2 Visual Exam

ML20129C201
Person / Time
Site:	Callaway
Issue date:	09/18/1996
From:	Schnell D UNION ELECTRIC CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
ULNRC-3443, NUDOCS 9609240150
Download: ML20129C201 (5)

Text

I

• '~. 1901 Chouteau Avenue l Post Office Box 149 l

• St. Louis, Missouri 63166

.314 554 2650 Union ~ ~ scs a Etecnuc g;y ~ *~

m September 18, 1996 l

U. S. Nuclear Regulatory Commission-ATTN: Document' Control Desk Mail Station Pl-137  ;

Washington, D. C. 20555-0001 l 1

I l

Gentlemen: ULNRC-3443 l 1

l CALLAWAY PLANT DOCKET NUMBER 50-483 REQUEST FOR ALTERNATIVE EXAMINATION REQUIREMENTS FOR l THE CALLAWAY PLANT INSERVICE INSPECTION PROGRAM PLAN

Reference:

W. H. Bateman ltr to D. F. Schnell ,

dated September 12, 1996 l ASME Section XI Code Case N-533 is entitled:

" Alternative Requirements for VT-2 Visual Examination I of Class 1 Insulated Pressure-Retaining Bolted Connections." This Code Case (Attachment 1) was approved by the American Society of Mechanical Engineers on March 14, 1995.

Code Case N-533 provides alternative i requirements to be used in lieu of those of IWA-l 5242 (a) for the removal of insulation from pressure-retaining bolted connections to perform a VT-2 visual

, examination. Insulation removal and inspection of  ;

I components at a system operating temperature of 557 F j is a personnel safety hazard.  !

I This request for approval to use Code Case l N-533 is submitted in accordance with 10CFR50.55a I footnote 6, which states:  !

"The use of other Code Cases may be authorized by  ;

the Director of the Office of Nuclear Reactor  ;

Regulation upon request pursuant to I 10CFR50. 55a (3) . "

L 23 0100 m,

/#/7N l

! 9609240150 960918 PDR ADOCK 05000483 '

G PDR

4 ULNRC-3443 September 18, 1996 In accordance with this requirement, it is requested that the NRC approve ASME Code Case N-533 for use at the Callaway Nuclear Plant. Approval is requested by October 1, to support the upcoming refueling outage scheduled to begin October 11, 1996.

If you have any questions concerning this information, please contact us.

Very truly yours, 4

Donald F. Schnell MMR/

Attachment

j . , }

1 l I

P l

f STATE OF MISSOURI )

) SS  !

CITY OF ST. LOUIS )  !

i Donald F. Schnell, of lawful age, being first duly sworn upon oath says.that he is Senior Vice President-Nuclear and an officer of Union Electric Company; that he has read the foregoing document and knows the content thereof; that he has executed the same for and on behalf of said company with full power and authority to do so; and that the facts therein '

stated are true and correct to the best of his knowledge, information and belief.

i By Donald F. Schnell Senior Vice President Nuclear

. I BSC worn to bef me this II day r

O E f% fi BARBARA J. PFAFE

(< ll NOTARY PUBUC-STATE OF MISSOURI MY COMMIS$10N EXPlRES APRIL 22, 1997 ST, LOUIS COUNTY I

cc: M. H. Fletcher Professional Nuclear Consulting, Inc.

19041 Raines Drive  !

Derwood, MD 20855-2432 L. Joe Callan Regional Administrator U.S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive Suite 400 Arlington, TX 76011-8064 Senior Resident Inspector Callaway Resident Office U.S. Nuclear Regulatory Commission 8201 NRC Road Steedman, MO 65077 l

Kristine M. Thomas (2)  ;

Office of Nuclear Reactor Regulation 1 U.S. Nuclear Regulatory Commission 1 White Flint, North, Mail Stop 13E16 11555 Rockville Pike Rockville, MD 20852-2738 Manager, Electric Department Missouri Public Service Commission P.O. Box 360 i Jefferson City, MO 65102 i

. SEP 87 '% 02:24PM E. CALLAWAY ENGINEERZNG PLANT P.2/2 a CASE

~ ' '

N-533 CASES OF ASME BOILER AMD FRE8sURE VESSEL CODE Approval Date: March 14,1995 See NamencelInden kr expiration and any reeMrmetion detes.

1

Case N-533 Alternative Requirements for YT-2 Visual F.wa-inad== of Class 11asulated Pressure-Retalalag Bolted en. ca .

Secties XI, Division 1 .

Inpiry: What akernative requiremens may be used  ;

j in lieu of those of IWA-5242(a) to remove insulanon i

from Class I pressure-rosaining bohad connections to 4

perform a VT-2 visual exammation?

Reply: It is the opinion of the Committee that, as i an alternative to the requirements of IWA-5242(a) to remove insulation from Class 1 pressure-retaining j bolted connections to perform a VT-2 visual exami-l nation, the follomng requirements shall be met. )

(s) A system pressure test and VT 2 visual exam-Ination shall be performed each refueling outage without removal ofinsulation.

{ (b) Each refueling outage the insulation shall be j removed from the bolted connection, and a VT 2 vis-ual examination shall be performed. The connection is not required to be pressurized. Any evidera of

, leakage shall be evaluated in accordance with IWA-

5250.

1 1

1065

.