ML13331B438

Nonproprietary Version of Technical Evaluation Rept for Hybrid Sleeve

ML13331B438
Person / Time
Site:	San Onofre
Issue date:	03/31/1981
From:	WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP.
To:
Shared Package
ML13330A238	List: ML13330A236 ML13331B438
References
NS-MFSE-81-054, NS-MFSE-81-54, TAC-42090, NUDOCS 8103090403
Download: ML13331B438 (26)

Text

Westinghouse Non-Proprietary NS-MFSE-81-054 TECHNICAL EVALUATION REPORT FOR HYBRID SLEEVE Prepared by Westinghouse Electric Corporation for Southern California Edison San Onofre Nuclear Generating Station, Unit 1 March, 1981 REGULATORY DOCKET FILE COP O

e oao 9o4T3 3436T :1

TABLE OF CONTENTS

1.

Introduction a,c,e,f

2.

Design Criteria for the

3.

Design and Process Description a c,e f 3.1 Description 3.2 General Process Description

4. Development and Qualification Program 4.1 Laboratory Test Program 4.2 Structural Analysis 4.3 Metallurgical Evaluations

5. Field Test Program

6. Non-Destructive Examination

7.

Sumnary and Conclusions 343T1 3436T:1

LIST OF ILLUSTRATIONS Figure Title a c,e,f 3.la Sleeve with ac,e,f 3.lb

]Sleeve with a,c~e f 3.2 Sleeve Instal ation with[

4.1 Standard Test Configuration 4.2 Sludge Pot Configuration 4.3 Joint Axial Fatigue and Leak Test Assembly 4.4

[Mockup acef 4.5 Location and Magnitude of Residual Stresses 6.1 Signals from Eddy Current Flaw Calibration Mockup LIST OF TABLES Table Title 2.1 ASME Code and Regulatory Requirements for the Sleeve with a[

a,c,e,f 4.1

[

]Test Data Summary a,c,e,f 3411 3436T :1

1.0 INTRODUCTION

On February 25, 1981, a meeting was held with representatives of the Regulatory staff to review the current status of the Steam Generator Repair Program at San Onofre Unit 1.

In addition Southern California Edison presented information related to the use of sleeves with a design for the upper joint rather than the upper joint design as described in the report entitled, "Steam Generator Repair Report, San Onofre Nuclear Generating Station, Unit 1, September 19808 (hereafter refered to as "Repair Report"), submitted in Docket No.

50-206 by letter dated August 29, 1980.

Based on the information presented at the February 25, 1981 meeting, the Regulatory staff indicated they had no objections to the use of sleeves with[

in thesteam generators of San Onofre Unit a,c,e,f

1.

The purpose of this report is to formally submit the information presented at the February 25, 1981 meeting related to the use of sleeves with a together with additional information a,c,e,f which became available subsequent to the meeting. The information con tained herein supplements that contained in the Repair Report.

1-0 3436T:1

STeeves 2.0-1 anEr~

theL poido

~~~

til tb~ ~

Jare provdedtohe doub-erided faigure of the oHi~nal tubes at the top of 1the t6:ubesheet ar~d to 11Imit the leakae fra t~le prima-y to the secondary should t1te original t~jibe be penetrated in the re'jion sparwmed by the sleeve.

Although the original San Onafre Unit I steam ge~aswere -built to Cection YEIL -of the ASPE 3o-iier wnd Pressure Vessel Cod=

the sleeyes have been desismed and aualyzed to the 19WO editit1on of Sectioni 111 o~teAE Code, a$ ell as applIcable Rre-ulatory iuds Te assac i atedI -mteri a] s a-nd processes a, so meet tt* requi renents of the Code.

Dale 2.1 prests the specifc j

eur~et Nein addfressed.

d

~These Spci1fic requirements wre cho-sen to enhance the ability af ti*

[

jto Perform its intendeds 1 The lower~ce~

se--ve j-rit oill cnfim to thEq re ~eots or~

t1w awz-e sev,ot described in -the Repair Report.

' his amwit of 1-ko will miaintain eccident doses to less than the

-+is of 1O'OO. 0 A~

TABLE 2.1 ASME CODE AND REGLLATORY REQJIRNWENTS FOR THE HYBRlD EXPANSI-O SLEEVE ITEM APPLICABLE CRITER IA REQUIREWENT Sleeve Design Section III n8-3200, Analysis Westinghouse Equi pent Analysis Conditions Specification 675161 Rev 3, dated 10/28/64 Reg. Guide 1.83 S/G Tubing Inspectability Reg. Guide 1.121 Plugging Margin Sleeve Material Secticw II Material Ceposition ection III

?E-200, Identification, Tests, and xaminations Cste Case 148#-3 Mechanical Properties C e,f a,ce,.

r L jere I,

2-1

3.0 DESIGN AND PROCESS DESCRIPTION acef

3.1 DESCRIPTION

3.2 GENERAL PROCESS DESCRIPTION a,b, c, e,f 40 3-0 3436T 1

Figures 3.1a, 3.2, and 3.1b a,b,c,ef are proprietary in their entirety

4.0 DEVELOPMENT AND QUALIFICATION PROGRAM 4.1 LABORATORY TEST PROGRAM 4.1.1 Introduction a,b,c,e,f Qualification data for the joint are included in Table 4.1.

4.1.2 Objectives Of Qualification Tests The qualification test program had the following objectives:

a,ce,f 4.1.3 Test Requirements a, b, c

,e,f 4-0 3436T :1

a,bcef 4-1 3436T:1

4.1.4 Test Apparatus The test mockup configuration shown. in Figure 4.1 was used throughout a b,c,e f testing.

4.1.5 Test Results In this section, the test results are presented for the reference conditions and the "off nominal" conditions.

4.1.5.1 Reference Conditions\\c 4-2 3436T:1

ab,cef 4-3 3436T 1

a,b,c,e,f 4.1.5.2 :Off-Nominal Conditions a,bc,e,f 4.1.5.2.1 4.1.5.2.2 4-4 3436T: 1

a,b,cef 4-5 34 36T :1

4.1.5.3 Summary of Test Results a,b c,e f 4.2 STRUCTURAL ANALYSIS 4.2.1 Derivation Of Limiting Loads a,cef 4-6 3436T:1

a,bcef 4.2.2 Acceptance Criteria For The Joint a,

b,c,e, f 4-7 34 36T 1

I'..

4. 3 METALLURGICAL EVALUATIONS 4.3.1 Introduction a,c,e,f 4.3.2 Results of Metallurgical Evaluations ab,ce,f 4-8 3436T:1

a,b,ce,f 4.3.2.1 Short Term Tests a,c,e,f 4-9 3436T: 1

a, b,c,e f 4.3.2.2 Long Term Tests a,b,c,e,f 4-1O 3436T: 1

TABLE 4.1 acef L TEST DATA

SUMMARY

REFERENCE DATA a,bc,e,f This Table Is Proprietary In Its Entirety 3436T:1 4-11 to 4-18

Figures 4.1, 4.2, 4.3, 4.4 and 4.5 a,bcef are Proprietary in their. entirety 3436T:1

5.0 FIELD TEST PROGRAM a,c,e,f 5.1 [FIELD QUALIFICATION TESTS A test plan was developed to demonstrate that in San Onofre Unit 1 Steam Generators.

ace,f T

5abcef 3436T:1 5-0

a,b,cef 5-1 3436T: 1

6.0 NON-DESTRUCTIVE EXAMINATION a,b,c,e,f I7 6-0 3436T:1

ab,c,e,f FIGUE 6.1 SIGNALS FROM EDDY CURRENT FLAW CALIBRATION MOCKUP

A Ij

~7.0 SWMAR Y A..1? CONCLUSIONS f

1.k