ML13304A952

Forwards Description of Component,Instrument & Structure Seismic Review to Be Performed by Seismic Qualification Review Team.Requests to Be Informed If ACRS Participation Required

ML13304A952
Person / Time
Site:	San Onofre
Issue date:	02/07/1979
From:	Quittschreiber Advisory Committee on Reactor Safeguards
To:	Bender M NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES)
References
ACRS-SM-0142, ACRS-SM-142, NUDOCS 8002130201
Download: ML13304A952 (19)

Text

UNITED STATES NUCLEAR REGULATORY COMMISSION ADVISORY COMMITTEE ON REACTOR SAFEGUARDS WASHINGTON, D. C. 20555 February 7, 1979 M. Bender SEISMIC QUALIFICATION REVIEW TEAM VISIT TO THE SAN ONOFRE SITE The attached letter describes a component, instrument, and structure seismic review to be performed at San Onofre by the NRC's Seismic Qualification Review Team (SQRT). I was not aware that a formal on site review was being performed by the NRC on nuclear power plants.

Page 9 of the attached letter invites the attendance of interested NRC organizational groups. Please let me know if you would like a member of the ACRS Staff or an ACRS consultant to attend this review.

!R. Quittschreiber Senior Staff Engineer

Attachment:

As stated 8002 130o0

UNITED STATES S

NUCLEAR REGULATORY COMMIS N

WASHINGTON, D. C. 205.55 ADVISORY COM

.4 RECTOR SAFEGUARD)S US.

LL Docket Nos. 50-361 JAN 17 and'.50-362 PM Mr. James H. Drake Mr. B. W. Gilman Vice President Senior Vice President - Operations Southern California Edison Company San Diego Gas and Electric Company 2244 Walnut Grove Avenue 101 Ash Street P. 0. Box 800 P. 0. Box 1831 Rosemead, California 91770 San Diego, California 92112 Gentlemen:

SUBJECT:

PREPARATION FOR SITE VISIT BY SEISMIC QUALIFICATION REVIEW TEAM During the course of our review of the San Onofre 2 and 3 application, we have concluded that it would assist the review to have our Seismic Quali fication Review Team (SQRT) visit the San Onofre site. As preparation for the site visit, we request that you provide certain information that will facilitate the SQRT evaluation. Specifically, we request that you select a typical item of equipment for each type of equipment listed in., and for each item, provide the information specified in qualification summary forms included in Enclosure 2 (Pages 10, 11, and 12).

The SQRT site visit will be conducted after we review.your response to this request. If you have any questions regarding this request, please contact us.

Sincerely, bert L. Baer, Chief Light Water Reactors Branch No. 2 Division of Project Management

Enclosures:

1. San Onofre 2 and 3 Equipment List

2. Seismic Qualification Review Team Interim Procedures ccs w/enclosures:

See next pages

'I'.l

S:u:ne'- California Edison Company 224-I-.alnut Grove Avenue

0. *. Sox 300

Rosaemea, California 91770

. S. 'd. Gi lman.

Senior Vice President - Operations San Diego Gas and Electric Company 131 Ash Street

.. Pox 1831 San Diego, California 92112 cc: Charles R. Kocher, Esq.

Ja-mes A. Seoletto, Esq.

Southern California Edison Company 2244 Walnut Grove Avenue

. 0. Box 800 Rosemead, California 91770 Chickering and Gregory S

.id R. Pigo-Esq.

Counsel for San Diego Gas

& Electric Company and Southern California Edison Conoany Three Embarcadero Center, 23rd Flpor San Francisco, California 94112 Mr. Kenneth E. Carr City Manager City of San Clemente 100 Avenido Presidio San Clemente, California 92672 Alan R. Watts, Esq.

Rourke & Woodruff 1055 North Main Street Suite 1020 Santa Ana, California 92701 Lawrence Q. Garcia, Esq.

California Public Utilities Commission 5066 State Building San Francisco, California 94102 a

aU

.JAN 1.1

p.

R.

Ce'ane, Jr.

Combusticn Engineering, Inc.

1l000 Prospect Hill Road Windsor, Connecticut 06095 Mr. P. Dragolovich Bechtel Power Corporation P. 0. Box 50250, Terminal Annex

- Los Angeles, California 90060

r. Mark Medford Southern California Edison Company 2244 Walnut Grove Avenue

?.

0. Box 300 Rosemead, California 91770 4enry Peters San Diego Gas & Electric Company Post Office Box 1831 San Diego, California 92112

?-Is. Lyn Harris Hicks Advocate.for GUARD 3908 Calle Ariana San Clemente, California 92672 Richard J. Wharton, Esq.

4655 Cass Street, Suite 304 San Diego, California 92109 Phyllis M. Gallagher, Esq.

Suite 221 615 Civic Center Drive est Santa Ana, California 92701 Mr. Robert J. Pate United States Nuclear Regulatory Commission P. 0. B6x 4167 San Clemente, California 92672

• ~.

JAW G

ENCLOSURE 1 SA: OOFE UNITS 2 A 3 EQUIRENT LIST FOR SQRT DOCKET NO. 50-361 AND 50-362 80P EQUIPM!ENT

1.

4160 V Class 1E Switchgear

2. 480 V Class 1lE Motor Control Centers

3.

125 V DC Class lE Distribution Switchboard

4. '600 V Electrical Penetration

5.

125 V DC Batteries

6. Class 1E Battery Charger

7. Control Room Instrument Racks

8. Motor Operated Valve Inverters

9. Evacuation Shutdown Panel

10. Transmitters

11.

Converters 12, Control Switches

13.

Auxiliary Feed ru!: V~tor

14. Diesel Fuel Transfer Pump Motor

15. Solenoid Valves.(Valcov)

16. Soleniod Valves (Target Rock)

17. Globe -Motor Operated Valves (W-K-M, 4 in., Limitorque S11,1-000)

18.

Gate-Miotor Operated Valves (24-in., Walworth Aloycm)

19. HV-4714 Valve

20. HV-6200 Valve

21.

2PSV-8401 Valve

22.

NSSS Auxiliary Relay Cabinet

23. Salt Water Cooling Pumps

24. Auxiliary Feedwater Pumps (Turbine Driven and Motor Driven)

25. Component Cooling Water Heat Exchanger NSSS EQUIPMENT

1.

Plant.Protection System Cabinet

a. Nuclear Instrument Vb.

Core Dsrotttion Calculator Test Module

c. Matrix Test Module ad. Relay Card Rack

e.

Bistable Control Panel F.

Actuation Reset Panel

g. Trip Path Panel

h. AC Distribution Panel

i. Power Supply Assembly.

AuiRPS Initiation Relay

k. Sola Transformer

1. S abinet Cooler Assembly i4

2.

Auxiliary Protective Cabinet A. CC !,ss Stcrage Unit

b. CC/CEAZ Central Processing Unit C. CPCICE Input/output Chassis

d. CPC/CEAC Power Supply

e. CEA Position Isolation Amplifers

f. Reactor Coolant Pump Sincal Processor C.

I-sCore Amplifiers

3. Reactor Trip Switchgear Cabinet

4. ES'AS Auxiliary Relay Cabinet S. Process Instrument Rack

a. Controller

b. Current to Voltage Converter

c.

Resistance to Voltage Converter

d. Alarm

e. Square Root Extractor

f. Surnina

a. Contract Isolator h.Power isolator,

r.

Voltage to Current Converter

j.

Power Supply z

k. Power Distribtuon Module

1. Signal Distribution Module m

q.

Temperature Transmitter

6. Vital Bus Power Supply Core Portection Calculator Operators Module

8. PPS Remote Control Module

9. Indicators

10.

Controller P.

Recorder

12.

Temperature Sensors

13.

Pressure Transmitter

14.

Differential Pressure Transmitters

15. RSactor Coolant Pump Speed Signal Sensor and Transmitter

16. Nuclear Instrument Detector

11.

.Recorder.

1.V 3

-3

17.

N'uclear Instrument Prea-plifer 18:

CE2 Rea: Switch Position Transmitter

19.

Magnetic Flow Detector

20.

M-asnetic Flow Transmitter

21.

Contair.-ent Purge Isolation Detector

22. ContainMEt Purge Isolation Transmitter 2:3.

3 HV 9323 Valve

24. 3 MV 9222 Valve 2H. Chargir; PLp

26. Shutdowr Heat Exchanger 4

ENCLOSURE 2 N

JAN 1 111 Appendix 110-1 SEISMIC QUALIFICATION REVIEW TEAM (SQRT)

Interim Procedures

1.

SCOPE SQRT tasks include both generic and site specific reviews. Generic reviews cover equipment supplied by the NSSS and A/E common to more than one plant.

Specific plant reviews as delineated in the Standard Review Plan Sections 3.9.2 and 3.10 will be supplemented by SQRT site visits and evaluation.

II. OBJECTIVES SQRT is a group of NRC staff members established to conduct reviews of the design adequacy of safety related mechanical components, instrumentation and control equipment, and their supporting structures for various vibratory loads.

SQRT is charged with accomplishing the following three tasks.

1. Determine the design adequacy of mechanical and electrical components and their supports for the required vibratory loading conditions which include:

(a) Seismic (b) hydrodynamic (as applicable)

(c) explosive (as applicable)

(d other vibratory inputs from the operating environment (as applicable)

(e) appropriate combinations of the above events.

C ts in seismic qualification criteria, such aS the revisic. c' THE Std. 344 and other IEEE Standards, and the issuance of Regul!

tory Guides 1.100 and 1.89 require that the staff verify:

(a)- For older plants having components qualified by previous criteria; that components have adequate margin to perform their intended design functions during and after a seismic event.

(b) For new plant applications; that there has been uniformity and consistency in implementing the current criteria.

3. In the case of plants which have design basis seismic groud motion levels and/or other required vibratory loads increased, review to assure adequate design margin exists at the revised levels.

III.

GENERAL CRITERIA The bases used by the staff to determine the acceptability of equipment qualification will be IEEE Std. 344-1975 as supplemented by Regulatory Guides 1.100 and 1.92, and Standard Review Plan Sections 3.9.2 and 3.10 IV. GENERAL PROCEDURES SQRT will conduct generic and plant specific reviews:

1. Generic reviews will be conducted of all NSSS vendors and most architect engineers (major'equipment vendors and testing laboratories may be included if necessary) to assure proper interpretation and.

implementation of the current equipment qualification criteria applied

to plants applying for construction permits and operating licenses.

2. A plant specific equipment qualification review will be conducted of each plant now undergoing licensing review having components qualified to criteria different from current requirements.

A. For components having multi-plant application (such as those within the scope of an NSSS vendor), an equipment qualification review at specific sites will provide generic qualifications.

B. For components which have only specific plant application (mostly those within the scope of the BOP supply), an-equipment qualification review at specific sites will provide site-specific qualifications.

3. Equipment qualification review for plants with revised increased design basis seismic ground motion levels and/or other required vibratory loads will be conducted on a plant by plant basis.

• V. SPECIFIC PROCEDURES SQr.T procedures provide for both generic discussion meetings and plant site visits.

1. Generic Discussion Meeting:

To implement the generic review specified in IV.1 and IV.2.A, a generic discussion meeting will be held to discuss the following:

A. Meeting Agenda Meeting Objectives by SQRT

S4

-l NSSS or A/E personnel should be prepared to present the fo1lwing information:

(1) A detailed description of current practice followed A.

equipment qualification, including acceptance criterie, methods, and procedures used in conducting testing and analysis. Present.and discuss the equipment qualification program on certain specified items (i.e., pumps, valves, diesel generators, motors, bistable units, relays, electrical cabinets, etc.)

(2) Information regarding administrative control of e~uipment qualification, especially the handling of interface problems, documentation, and internal review procedures.

(3) Identifying the scope of their suppliers. A list of equip ment should be made available if possible prior to the meeting.

C. For the cases specified in IV.2.A, methods and procedures for conducting equipment qualification review are discussed, including selection of plants for site visits and setting up a tentative schedule for such visits.

D. Discuss necessary documentation.

E. Inspect testing facilities, if any. Testing capability, format of testing reports, wave forms of shaker table motions, and monitoring and control devices are the major items for inspection..

e.

F.

Sn;T concludes the meeting and specifies the follow-u:

items.

2. Plant Site Reviews:

To implement plant specific equipment qualification reviews specified in IV.2 above, on-site inspection of equipment and supporting structures in question is required. Site visits generally follow the following procedures:

A. Pre-visit information submission:

The applicant (plant owner) receives initial information concerning the intended visit, and should subsequently submit two summary equipment lists (one for SSS supplied equipment and one for 8OP supplied equipment). These lists should include all safety.related mechanical components, instrumentation, and control equipment, including valve actuators and other appurtenances of active pumps and valves.

In the lists, the following information should be specified for each item of equipment:

(1) Method of qualification used:

(a).Analysis or test (b) If by test, describe whether it was a single or multi-frequency test and whether input was single axis or bi-axial (c) If by analysis, describe whether static or dynamic,

-6 JAN 1 1#9 single or multiple-axis analysis was used. Present natural frequency of equipment.

(2) Indicate whether the equipment is required for:

(a) hot stand-by Cb cold shutdown (c) both (d) neither The scenario to be considered for this determination is:

(1) SSE or OBE, with coincident (ii) loss of offsite power, and (iii) assumption of any single active failure.

(3) Location of equipment, i.e., building, elevation.

(4) Availability for inspection (Is the equipment already

-installed at the plant site?)

(5) Provide a description of how cold shutdown is reached using the equipment in item (2) above.

B. SQRT screens the above information and decides which items will be evaluated during our forthcoming site visit. The applicant

7 will be informed of these items and will be expected to submit two weeks prior to the visit an equipment qualification sumary as shown on pages 10-12 for each of the selected itenms.

C. A brief meeting is held at the beginning of a site visit with the following agenda:

(1) SQRT explains the objectives of the site visit and procedures to conduct equipment inspection.

(2) Utility personnel or their designees present. an overview of the seismic qualification program conducted.

(3) The seismic qualification of certain specified items may be discussed as necessary.

(4) SQRT specifies items that need to be inspected.

D. SQRT conducts inspection of specified items.

E. SQRT describes findings of the inspection.

F.

General discussion.

G. SQRT concludes the visit and specifies needed information and the follow-up actions.

3. After eact visit SQRT will issue a trip report, which identifies findings, conclusions and follow-up items.

Status reports may be issued as necessary. The site review will include the issuance of

Oe 8

JAN 1 117 an Evaluation Report for the specific plant.

Generic evaluations oill be.referenced to the NSSS vendor or A/E.

V1.

RESPONSIILITIES OF KRC PARTICIPANTS:

A. The Seismic Qualification Review Team consists of members of the Mechanical Engineering Branch (MES), the Instrumentation and Control Systems Branch (ICSB), and the Power Systems Branch (PSS).

One additional member from MEB will join the team when a review of a specific plant is going to be conducted.

This member will be the reviewer of the plant.

The Team Leader is responsible for scheduling actions, coordinating staff positions, and contacting appropriate authorities for work assignments to each member. He reports to the MES Branch Chief regarding the progress of SQRT performance. He will set up necessary contacts for generic reviews and will contact project management for specific plant site visits.

He will specify the meeting objectives and concludes meetings.

The MEB members and Team Leader are responsible for reviewing assigned equipment qualifications in the area of responsibility of the Mechanical Engineering Branch, including the methods and procedures used in test and analysis.

Members representing the Power Systems Branch (PSB) and the Instrumentation

& Control Systems Branch (ICSB) are responsible for reviewing assigned equipment qualification in the area of responsibility of

their branch, including equipment signal interpretations for functional verification. They serve as a liaison between SQRT and ICSB and PSB.

All members shall present their opinion and professional judgement to the Team Leader in order to arrive at consistent and uniform SQRT positions.

B. The MEB, PSB, and ICSB project reviewers will be advised of SQRT activities which relate to specific plants. The MEB project reviewer is responsible for evaluating the impact of SQRT activity on the specific plant review and for taking appropriate action to include pertinent information in the plant safety evaluation.

The MES project reviewer is expected to participate in the site visit and attend pertinent generic meetings as necessary.

The DPM project manager, after being informed of the intended plant visit, is expected to contact the-applicant and arrange for the visit. The project manager serves as a liaison between the SQRT and the applicant.

C. Generic meetings will be arranged by the SQRT or via the DPM generic project manager if one is assigned.

D. Representatives from I&E Regional Offices and-other interested organizational groups within NRC are welcome to attend either generic meetings or plant site visits as observers. The SQRT should be informed of expected attendance at such meetings or site visits.

O

• O*

JAN 11S7 Oualification Surnary of Ecuioment

1.

Utility:

PR

2.

NSSS:

3.

A/E:

BR Il. Conponent Name

1. Scope:

[ ] NSSS

( ] BOP

2.

Model Number:

Quantity:

3.

Vendor:

4.

If the component is a cabinet or panel, name and model No. of the devices included:

5. Physical Description a.

Appearance

b. Dimensions

c.

Weight

6. Location: Building:

Elevation:___

7. Field Mounting Conditions r )

Bolt (No.

, Size

)

E I Weld (Length

)

8.

Natural Frequencies in Each Direction (Side/Side, Front/Back, Vertical):

S/S:

F/B:

V:

9.

a.

Functional

Description:

b. Is the equipment required for I3 Not Standby I 3 C4autdown U 3 Both

10. Pertinent Reference Design Specifications:

I:.. Is Equipment Available for Insoection in the Plant: E )

Yes IV. Eauipment Ouelification Method:

Test:

Analysis:

Combination of Test and Analysis:

Test and/or Analysis by_

(name of Company or Laboratory & Report No.)

V. Vibration Input:

1. Loads considered:l.[ ]Seismic only 2.1 ]Hydrodynamic only 3.[ ]Explosive only 4.E )

Other (Specify) 5.1 )

Combination of

6. Method of combining RRS: [ J Absolute Sum 1 ] SRSS 1 (other,.specify.)

2. Required Response Spectra (attach the graphs):

3. Required Acceleration in Each Direction:

S/S=

F/B V__

VI. If Qualification by Test, then Complete:

.(]random

1. f ) Single Frequency

[ I Multi-Frequency: C 2 sine beat

2. E I Single Axis

( 3 Multi-Axis

3. No. of Qualification Tests: OBE SSE Other (specify)

4. Frequency Range:

5. TRS enveloping RRS using Multi-Frequency Test 1 3 Yes (Plot TRS on RRS graphs)

E 3 No

6.

Input g-level Test at S/S

• F/B V

7. Laboratory Mounting:

1. ( 3 Bolt (No.

e

) 1Weld (Length

) [

8. Functional operability verified:

I 2 Yes [ 3 No ( 3 Not Applicable

9. Test Results including modifications made:

10. Dther tests performed (such as fragility test, including results):

(Z9 c)

P:.

If Cifica on by Analysis or by the Combination of Test and Analy5s, then CA. l e te:

-1 Description of Test including Results:

2. Method of Anal ysis:

t ) Static Analysfs

[ ] Equivalent Static Analysis E J Dynamic Analysis: [ ] Time-History

£ J Response Spectrum

3. Model Type:

[)

3D

£ J20 19

.)

Finite Element

(

Beam

[

Closed Form Solution

4. t 3 Computer Codes:

Frequency Range and No. of modes considered:_

E 3 Hand Calculations

5. Method of Combining Dynamic Responses: E 3 Absolute Sum £ 3 SRSS

)

3Other:

(specify)

6. Damping:

Basis for the damping used:

7. Support Considerations in the model:

8.

Critical Structural Elements:

Governing Load or Seismic Total Stress A. Identification Location Response Combination Stress Stress Allowab!

Effect Upon Functional B. Max. Deflection Location Operability