ML19339B171

Submits Seventh Supplemental Response to IE Bulletin 79-14, Seismic Analysis for As-Built Safety-Related Piping Sys. Provides Analysis & Design Effort Progress Rept.Analytical Schedule for Unreleased Piping Isometric Drawings Encl

ML19339B171
Person / Time
Site:	Point Beach
Issue date:	10/31/1980
From:	Fay C WISCONSIN ELECTRIC POWER CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
IEB-79-14, NUDOCS 8011060448
Download: ML19339B171 (4)

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231 W. MICHIGAN, P.O. BOX 2046. MILWAUKEE. W' 53201

_- ' :ES October 31, 1980 Mr. J. G. Keppler, Regional Director Office of Inspection and Enforcement, Region III U. S. NUCLEAR REGULATORY COMMISSION 799 Roosevelt Road Glen Ellyn, Illinois 60137

Dear Mr. Keppler:

DOCKET NOS. 50-266 AND 50-301 FURTHER RESPONSE TO IE BULLETIN 79-14 POINT BEACH NUCLEAR PLANT, UNITS 1 AND 2 IE Bulletin 79-14 requires licensees to verify that the as-built safety-related piping systems conform to the as-designed seismic analysis and acceptance criteria. This letter provides a progress report on our program in response to the items in the Bulletin. This report is our seventh submittal regarding Bulletin 79 ',4 and supplements our previous responses.

The current status of our program is as follows:

a. The number of piping isometric drawings has increased to 121 from 118. .

b. For these 121 drawings and as of October 17, the detailed piping stress analysis has been completed for 105 piping isometric drawings (86%), the pipe support analysis and design effort have been completed for 78 drawings (64%), and 76 drawings (62%) have been released for record purposes or issued for construction by Bechtel Power Corporation.

c. On June 16 and 17, Mr. I. Yin of Region III conducted a followup inspection of our program in Sechtel's San Francisco offices.

f)37 While there were subjects which required 5 further effort and clarification, no items of noncompliance were identified during the /I inspection.

8011060NI g

Mr. J. G. Keppler October 31, 1980 The piping isometric drawings that have been released by Bechtel have required an average of about 3.8 physical repairs per drawing. These repairs can be summarized as follows (utilizing the repairs required for 67 piping isometric drawings) :

- Shim one or more support gaps - about 35%

- Install steel to convert deadweight supporta to rigid hangers - about 24%

Install new support - about 15%

Other reasons - about 10%

Attached hereto is an updated analytical schedule for all of the piping isometric drawings which have not yet been released or issued for construction by Bechtel. The present schedule indicates that the remaining analysis and design effort would be completed by early January 1981. Subject to completion of the analytical effort and procurement of needed materials, we expect to complete our program during the Spring 1981 Unit 2 refueling outage. Accordingly, we anticipate that our next report will be submitted in June 1981. If you require any additional information at this time, please contact us.

Very truly yours, C. W. Fay, Director Nuclear Power Department Attachment Copies to: Office of Inspection and Enforcement Division of Reactor Operations Inspection Mr. A. Schwencer, Chief Operating Reactors, Branch 1 NRC Resident Inspector Point Beach Nuclear Plant

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a POINT BEACH NUCLEAR PLANT

• STATUS OF STRESS ANALYSIS & PIPE SUPPORT REVIEW FOR NRC IE_ BULLETIN 79-14 (10/17/80 ISSUE)

' SCHEDULE DATES FOR PIPING ISOMETRIC COMPLETE PIPE ISSUE ISSUE

DRAWING PIPELINE ANALYSIS & ISSUE PIPE SUPPORT DRAWINGS FOR NUMdER IDENTIFICATION SUPP. GUIDANCE DETAILS CONSTRUCTION P-106 EB-8 11/15/80 12/1/80 12/15/80 P-107 EB-1 & 2 Done 10/31/80 11/7/80 P-111. EB-9 Done 11/7/80 11/14/80 P-ll3 HB-19 Done 10/22/80 10/29/80 _.

P-ll4 HB-19 Done ,

10/31/80 11/7/80 P-117 JG-4 Done 11/14/80 11/21/80

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P-ll8 JG-4 Done 11/14/80 11/21/80

P-119 SI-1501 10/24/80 10/31/80 11/14/80 t

P-122 CH-151 Done l 10/20/80 10/24/80 P-132 AC-601 Done i Done 11/15/80 P-133 AC-601 Done 10/24/80 11/14/80 P-139 HB-19 Done 10/31/80 11/21/80 P-149 AC-152 Done 10/31/80 12/5/80 P-163 HB-19 11/21/80 11/28/80 12/5/80 P-167 SA-600, Done Done 10/24/80 P-169 CH-152 11/21/80 12/5/80 12/19/80 P-170 CH-152 11/26/80 12/10/80 12/24/80 P-171 GR-152 12/3/80 12/17/80 12/24/80

, P-172 Aux. Steam to Evap. 11/21/80 12/5/80 12/31/80 P-201 SI-301 Done 10/24/80 11/21/80

P-202 SI-151 Done 10/20/80 12/12/80 P-206 EB-8 11/15/80 12/1/80 12/15/80 P-207 EB-1 10/31/80 11/7/80 11/21/80 P-208 EB-1 Done 10/23/80 10/31/80 P-211 EB-9 10/24/80 10/31/80 11/7/80 P-213 HB-19 Done 10/31/80 11/14/80 P-214 HB-19 Done 10/31/80 11/14/80 P-219 SI-1501 10/31/80 , 11/7/80 11/28/80 P-220 SI-1501 10/31/80 11/7/80 11/28/80 P-223 CH-151 Done 10/20/80 12/5/80 P-224 CH-151 Done 10/31/80 11/14/80 Page 1 of 2 a

t POINT BEACH NUCLEAR PLANT STATUS OF STRESS ANALYSIS & PIPE SUPPORT REVIEW FOR NRC IE BULLETIN 79-14 (10/17/80 ISSUE)

SCHEDULE DATES FOR PIPING ISOMETRIC COMPLETE PIPE ISSUE ISSUE DRAWING PIPELINE ANALYSIS & ISSUE PIPE SUPPORT DRA!11NGS FOR NUMBER IDENTIFICATION SUPP. GUIDANCE DETAILS CONSTRUCTION ,

P-226 SI-301 Done 11/7/80 12/12/80 P-230 AC-152N Done 10/24/80 10/29/80 P-233 AC-601 Done 10/31/80 11/7/80 P-234 AC-601 Done 10/31/80 11/15/80 P-240 EB-3 & 10 Done 10/23/80 10/24/80 P-241 EB-3 & 10 Done 10/23/80 10/24/80 P-246 RC-2501 Done 11/14/80 12/12/80 P-247 CH-601 Done Done 10/31/80 P-249 AC-152N Done 10/31/80 11/28/80 P-251 AC-152N Done 10/23/80 10/24/80 P-254 CH-2501 Done 10/24/80 11/7/80 P-257 PA-151R Done 11/7/80 11/14/80 P-258 RC/Pri Loops 11/7/80 11/21/80 12/19/80 P-262 RC-601 Done Done 11/7/80 1

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