ML20137U727

Trip Rept 2201 of 860121 Visit to Robert L Cloud & Assoc,In Berkeley,Ca Re Participation in Facility Cable Tray Verification Program.Company Will Audit Cable Tray Tests Performed by Ebasco,Impell Corp & Anco

ML20137U727
Person / Time
Site:	Comanche Peak
Issue date:	01/29/1986
From:	Ciatto R, Solla E TELEDYNE ENGINEERING SERVICES
To:	TELEDYNE ENGINEERING SERVICES
Shared Package
ML20137U715	List: ML20137U709 ML20137U727 ML20137U779
References
NUDOCS 8602190303
Download: ML20137U727 (12)

Text

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TF WE ENGNEERING S9WICES TRIPREPORTNO.5201 VISIT TO ROBERT L. CLOUD AND ASSOCIATES (RLCA)

BERKELEY, CA January 29, 1986

Purpose:

Meeting and Audit of RLCA Activities on Cable Tray Sup-ports TES Personnel: R.D. Ciatto, E.A. Solla The consulting firm of Robert L. Cloud and Associates was requested to participate in the Comanche Peak cable tray verification program by Mr.

J.B. George. This recent addition to the program was prompted by the recognition of the need to coordinate and overview the activities of EBASCO and Impell. According to Harvey Harrison, the CPSES Cable Tray Project Manager for TUGCO, the Cloud organization is not involved in conduit sup-ports at this time, although their participation in this activity at a later date is possible.

Representing the NRC at this meeting was Mr. David Jeng of the NRC staff. Assisting him were Mr. Paul Bezler of Brookhaven National Labora-tory and Mr. Victor Ferrarini of Engineering Analysis Services in addition to R.D. Ciatto and E. A. Solla. Attachment 1 gives a complete attendance list.

Mr. Harrison introduced Mr. Edgar Hee, the RLCA project manager f or this effort, who presented a sumary of his company's role in this project.

Mr. Hee's presentation followed the outline given in Attachment 2 of this trip report. Besides their overview of EBASCO and Impell, RLCA will also overview the cable tray tests performed by ANC0. Both Units 1 and 2 are included in RLCA's workscope. They will review and coordinate design criteria, procedures, and computer programs to ensure uniformity between the 'wo analysis organizations in addition to technical adequacy and con-siste'cy with licensing comitments. Mr. Hee documents the results of Pl.CA activities, including technical audits of the analysis and testing organ-izations, in letter reports to Mr. Harrison of TUGCO. These reports are auditable by the NRC.

8602190303 ADOCK O 86 45 PDR PDR A

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ENGNEERING SERVICES Trip Report 2201 January 29, 1986 Page 2 In their overview of procedures, RLCA u:es checklists consisting of external source issues including Cygna concerns to ensure that all pertin-

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ent items are addressed. They are also verifying computer codes to some extent. Mr. Harrison requested RLCA to benchmark the programs to verify items such as method used for modal combinations. In determining if Impell's procedures are equivalent to EBASCO's procedures, RLCA has un-covered a few differences:

o One organization refers t.o cable trays as Seismic Category 1 structures where as the other refers to them as Safety-Related structures.

o Impell procedures provide for the use of stiffness caf-ficients at concrete baseplates whereas EBASCO assumes these to be fixed restraints. (EBASCO's position is that their method is conservative.)

o There were minor differences in selection of response spec-tra.

o For wall-mounted supports, Impell. procedures provided for linear interpolation between floor spectra whereas EBASCO envelopes the floor spectra.

o Impell procedures favor dynamic analysis whereas EBASCO tends to use static methods.

On this last point it was noted that EBASCO started with Unit 2 which perhaps was better suited for static methods of analysis. However, in Unit 1 both EBASCO and Impell will use dynamic system analysis and static methods depending on which is more appropriate for a particular system.

Overviews of procedure development have already been documented in let;er reports by RLCA. TUGC0 (Harrison) committed to provide the checkli.t comparison to the NRC.

During the implementation phase of the cable tray verification pro-gram, RLCA will audit Impell and EBASCO. They will review samples of detailed calculations but in a few instances they expect to perfcrm inde-pendent calculations. Although they will not concentrate on QA aspects, RLCA will review interf aces as-well-as technical adequacy of calculations.

They will try to identify trends of deviations from procedures. Their audits will comence in mid-March. Mr. JengNoiced concern about the sampling technique to be used by RLCA, particularly the application of Appendix 0 of the CPRT program plan and MIL-STD-1050. RLC A stated that the sample would be " engineered" rather than totally random.

W F W NE ENGINEERNG SERVICES Trip Report 2201 January 29, 1986 Page 3 Observations / Recommendations Since RLCA activities started recently and since our time was limited to a few hours, it was neither appropriate nor possible to audit RLCA documentation. However, the overview of the procedure development is complete and this report should be audited when it is submitted. This will include a comparison of EBASCO and Impell procedures and a checklist of pertinent issues.

One of the important parameters affecting analysis results is the baseplate stiffness coefficient. CPSES uses rolled angles as baseplates with concrete inserts or expansion anchors. Since EBASCO routinely as-sumes the connections to be rigid this assumption should be reviewed to determine its appropriateness. It is EBASCO's opinion that this is con-servative but, this may not necessarily be true in all cases.

RLCA audits do not specifically include QA reviews of the analysis and testing organizations. The staff should consider QA audits, particularly as related to desian change control.

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Eric A. Solla RDC/EAS/mam cc: D.F. Landers J.Q. Cragin Project 6410 Trip File

TE M ENGNEERING SERVCES Attachment l' Meeting - CPSES @ RLCA 2:30pm 1/21/86.

Edgar Hee RLCA Rene Alexandru EBASCO John W. Reed JBA Charlie Kircher JBA H. A. Harrison Tuglo R.D. Ciatto NRC/TES David C. Jeng NRC Victor Ferrarini NRC/TRT Eric Solla NRC/TES Paul Bezier NRC/BNL Per Svensson RLCA R.L. Cloud RLCA

Attachment 2 Robert L. Cloud arul Associates, Inc.

RCA Comanche Peak Steam Electric Station Audit of Robert L. Cloud Associates, Inc.

4 January 21, 1986 Berkeley, California i

I l

I RLCA Scope of Work and Responsibilities o Mr. Joe B. George requested that RLCA assist TUGCO in their overview of the Ebasco and Impell cable tray structural ~ verification activity. Mr. George personally instructed both Ebasco and Impell of TUGCO's desire to have them cooperate with and support RLCA in the overview assignment.

o Overview scope includes Unit 1 and 2 cable tray systems and hangers. RLCA's initial focus is Unit

1. Overview scope includes:

- Ebasco engineering activities Impell engineering activities Project as-built program

- Other assigned project technical activities such as the Dynamic Testing program o Resonsibilities and Objectives:

- To confirm the adequacy of Ebasco and Impell technical criteria, procedures, instructions and computer codes.

- To confirm that the criteria, procedures and instructions are properly implemented, i.e., the work is complete and correct.

- To assist TUGCO in the presentation of work to the NRC.

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II RLCA Overview of Procedure Development A. Scope All Ebasco and Impell technical procedures (criteria, including project instructions).

B. Tasks

1. Comparison of technical content (are Ebasco and Impell procedures technically the same?)

2. Verify the adequacy of the technical procedures (are the procedures complete and correct?).

Licensing commitments

- Concerns raised by Cygna and others

- Scund engineering practice.

3. Audit of computer codes.

Consistency with licensing commitments Consistency with project procedures

4. Confirmation of solutions to technical lssues.

Slenderness ratio (KL/r 7200)

Multiple mode factor Etc.

III RLCA Implementation Audit A. Scope Completed and appoved Ebasco and Impell design documents.

B. Tasks

1. Develop audit check lists.

- Conformance to procedures

- Address technical licensing issue

2. Select audit sample Sample size based on 95%/951 confidence /

acceptance level

- Biased towards effective engineering review of work and representative cross section

3. Detailed review of calculations.

Written audit observations Independent analysis of non-standard items

4. Deviation analysis (if required).

- Deviation impact and trending

- Possible cause (generic significance)

Safety significance

5. Audit report.

IV PLCA Organization and Interface A. Internal RLCA Organization President R.L. Cloud Project Manager E.J. liec East Coast Asst. Project Office Manager J. McLean C.I. Browne Technical Technical Technical Technicc 1 Supervisor Supervisor Supervisor Supervit or J. McLean P.O. Svensson C.I. Browne E.J. !!et Task Task Task Task Teams Teams Teanis Teanis

B. Project Interface

1. Policy and Direction CPSES General Manager J.B. George CPSES Cable Tray Project Manager li . A . Harrison BLCA Project Manager E.J. Ilee

2. Information Flow TUGCO Project Manager

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V Personnel Qualifications A. Key personnel Robert L. Cloud - President Edgar J. Hee - Project Manager,-Technical Supervisor Charles I. Browne - Assistent Project Manager, Technical Supervisor John McLean - Assistant Project Manager, Technical Supervisor Per O. Svensson - Technical Supervisor B. Project Qualifications

- RLCA Experience Summary for CPSES Years Eng. Reg..

Highest Grad. Experience PE Name Degree School Year Nucl. Total Univ. of Pittsburgh 64 23 30 X Robert Cloud PhD/ME 70 13 15 X Edgar Hee MS/Struc Univ. of California, Berk College of Aeronautics 59 17 26 X J.L. McLean MS /AE 19 Charles Browne MS/ME Univ. Southern California 67 13 X Univ. of California, Berk 75 10 10 X Per Svensson MS/CE Paul Anderson MS/Eng Mec Virginia Polytechnical Inst. 83 9 9 Pete Beazley MS/Eng Mec Univ. of Wisconsin 79 5- 6 Mike Becker MS/CE Univ, of California, Berk 84 1 1 Craig Boyak MS/CE Oregon State Univ. 84 4 5 D. Chatterji MS/Eng Cleveland State Univ. 74 11 15 Northeastern Univ. 76 5 13 Jim Culley- MS/ME MBA Western New England College 82 Univ. of California, Davis 73 6 13 X Jim Leung MS/ME Hanson Loey BS/ME Univ of California, Berk 81 4 4 Stanford University 78 5 7 Tim Ludington MS/ME Calif. State Univ., 74 8 10 X Gil Madrid BS/CE Northridge P.C. Mainali MS/CE Univ. of Illinois 73 MS/Ct.Mgt. Univ. of Waterloo, Canada 71 13 15 X Univ, of Tokyo 72 10 13 X Tom Muraki PhD/ Naval Arch.

David Quinones BS/ Physics New Mexico State Univ. 76 5 10 Univ. of North Dakota 70 14 16 X Charlie Wu MS/CE 82 3 X Ken Wu HS/Struc Univ. of California, Berk 3 Univ, of California, Berk 62 6 26 X Shig Yamahara MS/CE X Ming Yang PhD/CE Univ. of California, Berk 82 3 3 Univ. of California, Berk 79 6 6 X Fan Yuan MS/CE MS/ Chem Univ. of Pittsburgh 77 Hucl. Total Total Years Experience 194 275 Average Years Experience 9 12 l