ML20137G755
| ML20137G755 | |
| Person / Time | |
|---|---|
| Site: | Comanche Peak  |
| Issue date: | 07/23/1985 |
| From: | Keshishian P NRC - COMANCHE PEAK PROJECT (TECHNICAL REVIEW TEAM) |
| To: | Noonan V NRC - COMANCHE PEAK PROJECT (TECHNICAL REVIEW TEAM) |
| References | |
| NUDOCS 8601210202 | |
| Download: ML20137G755 (14) | |
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UNITED STATES 8
NUCLEAR REGULATORY COMMISSION o
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WASHINGTON, D. C. 20555
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v%ty 23, MB 5 N-MEMORANDUM
' Vincent S. Noonan, director i G;manche Peak Project f
i FROM:
Paul Keshishian Comanche Peak Project,
SUBJECT:
COMANCHEPEAKRESP0NSkTEAM SITEVERIFICATIONACTIV{lES.
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A review was conducted of the ongoing Comanche Peak Response Team activities during tha period of July 15-19, 1985. The principal review activities in progy.ss a't the site at the present time are those associated with the:
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- TEP,A Design Verification Effort 2.
- Stone & Webster Design Verification Effort y.
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- Ebasco Design Verification Effort 4.
- QA/QC Construction Verification Effort t
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- TRT Issue Specific Action Plans Implementation 2.
TERA Design Verification Effort
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A.
Scope of TERA Effort - TERA is responsible for the Design Adequacy Program Plan, acts as third party overreviewer of design review, resolution of TRT issue specific action plan for the mechanical, gaggggig5g0j.
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civil and structural areas and will prepare and issue a final design adequacy report at the conclusion of the effort. The specific areas of design review that TERA will perform are:
Auxiliary Feedwater System Electrical Power Supply Overview of Stone & Webster piping and support / restraint review effort Overview of Ebasco cable tray and conduit support review effort Concrete Structural Steel Equipment supports and mountings HVAC supports Crane supports Steam Generator Anchor Bolts Seismic CAT II items At the present time the above list represents TERA's scope of work, however the list may expand as a result of ongoing program preparation efforts and input form other sources such as the QA/QC construction effort, the CYGNA effort and the TRT issue specific action plans.
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Schedule - the total TERA effort atsthe current scope of work is expected to be completed by the 'endiof the year.
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Manpower.- The; estimated effort for the present scope is aggru i,mately 75,000 man. hours, About 85% of the required manpower is row available. The total effort will involve about 90 people of i
'whm 4,to 5 will be located at the site and the balance in the TERA home, offices.
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CurrentActivities-TERAiscu/rentlyworkingon:
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% y Preparing procedures for QA' Program in conjunction with the i
construction verification QA/QC group.
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t Preparing Aux 11ary Feedwater Systeni Review Procedures Preparing detailed check' lists f6 all areas.
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, Reviewing Gibbs O Hill design 4 methodology 3
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Selecting calculation packages for HVAC system supports for 4
design verification.
Performing validation checks to confirm that design review areas selected can be utilized as representative of plant design.
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4 TRT issue specific action plans in mechanical, civil, and structural areas.
Preparing ISAP for confirming that vendor supplied equipment (valves, pumps, etc.) is in conformance with procurement documents).
Preparing QA overview procedure for design adequacy effort.
Analyzing design adequacy of steam generator upper lateral support embedment.
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Stone,& Webster Design Verification Effort A.
Scope of S & W Effort - will perform a reanalysis of large bore ASME Class 2 and 3 piping and supports and an evaluation of non-Westinghouse designed supports on ASME Class I piping will be performed.
In addition, a sample reanalysis of small bore ASME Class 2 and 3 piping will be performed. The reanalysis effort will be performed using S & W established methodologies.
B.
Schedule - the total S & W effort for the current scope of work is expected to be essentially completed for Unit 1 systems required for fuel load by the end of the year. The estimate allows for possible modifications to some large bore supports as a result of the reanalysis.
5 C.
Manpower - the estimated effort for the present scope of work is approximately 600,000 - 800,000 man hours.
It is anticipated that some 550 engineers will be involved in the effort and they will be principally located in the New York Offices of S & W.
At the present time it is expected that of the 550 personnel there will be approximately 100 S & W engineers located at the site.
TUG 0 plans to have a senior manager resident in the New York Office of S & W during the design review for oversight of this activity.
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Current Activities - S & W is currently working on:
Mobilizing home office and site staff.
At the present time there are approximately 40 engineers working at the New York Office and 9 engineers at the site working on this effort.
Preparation of walkdown and design verification procedures.
Performing large bore piping walkdowns at the site.
Selecting 60 small bore piping isometrics for stress analysis.
Specific responses to Walsh/Doyle issues.
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Ebasco Design Verification Effort A. - Scope of Ebasco Effort - the Etasco design verification involves a complete verification of original designs and as-built condition associated with the design and construction of the Unit #1 and #2 electrical cable tray and conduit supports.
B. - Manpower - Ebasco currently has a site force of approximately 150 site engineers and 120 home office engineers engaged in this effort and these manpower levels should be adequate to complete their scope of work. The total Ebasco effort is presently estimated at 480 man years.
t C. - Schedule - It is anticipated that the design verification effort can be completed by the end of the year. The time required to complete modifications will be dependent upon what modifications are required as a result of the design verification effort.
Concurrent with the Ebasco effort a series of 7 tasks (outlined in Program Plan) are contemplated to confirm the adequacy of the cable tray support design.
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Current Activities - current activities in this area:
Ebasco is working with TERA on development of a 7 task test program for cable tray supports.
7 Ebasco has completed Unit #2 cable tray and conduit supports as-built and design verification except for some Unit 2 supports in common area.
Construction forces are modifying cable tray and conduit supports on Unit #2 (Some 30% of cable tray and 3 % of conduit supports require modifications).
Starting Unit #1 as-built and design verification for cable tray and conduit supports Ebasco plans to respond to each of the CYGNA identified design deficiencies for cable tray and conduit supports.
4.
QA/QC and Construction Verification Effort A.
Scope of QA/QC Effort - this review encompasses a statistically based sample reinspection of QC accepted safety-related construction work supplemented by a review of related quality documentation.
B.
Schedule - it is anticipated that the total construction verification effort will be completed by the end of the year.
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Manpower - The estimated effort for the present scope of work is 150,000 - 200,000 man hours. At the present time there are
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8 approximately 95 persons working on the project and it is anticipated that 135 persons will be required for full manning.
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Current Activities - at the present time the QA/QC construction verification group is:
i Preparing inspection procedures Preparing inspection checklists Selecting sample hardware populations Preparing inspection schedules Training the QC inspectors Starting field verification of conduit for Units 1 and 2 and common areas.
Anticipate start shortly of verification of cables.
4 Working on a number of TRT action specific items.
Completing physical inspection of hardware associated with QC inspectors who had questionable certifications.
9 Completing review of skewed welds.
Starting review of plug welds.
Prepsring umbrella QA Program to overview CPRT effort.
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TRT Issue Specific Action Plans Implementation Ad6pe - Each of the SSER's prepared as a result of the TRT inspections resulted in specific actions required by TUEC to resolve outstanding deficiencies.
For each of the issue specific items TUEC has developed action plans and is in the process of implementing them. As each of the action plans is completed a results report will be prepared for each item. The specific details for each of the following TRT issue specific items can be found in the respective SSERs or in the Program Plan under Appendix C.
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_st vi,e The following is a listing of the TRT items and their status at the time of the site review:
10 ITEM STATUS Heat Shrinkable Actions Completed.
Insulation Sleeves Preparing Results Report.
Inspection Reports on Actions Completed.
Butt Splices Preparing Results Report Butt Splice Qualification Work in Progress Agreement Bett'een Actions Completed.
DWGS and Field Termin's/
Preparing Results Report.
NCRs on Vendor Installed Work Completed. Preparing Amp. Terminal Plugs Results Report Flexible Conduit To Inspection in Progress Flex. Conduit Separation Flex. Conduit to Cable Evaluation in Progress Separa tion Conduit to Cable Tray Preparing Final Report Separation For Separation Analysis.
Barrier Removal Actions Completed Preparing Results Report
rr 11 Item Status Electrical Conduit Analysis in Progress.
Supports QC Inspector Qual's Inspector Qualifications Review Completed.
Review of Inspected Work in Progress Guidelines' For Admin.
Review in Progress Of QC-Inspector Test-Reinforcing Steel In Work Completed.
The Reactor Cavity Preparing Results Report Concrete Compression Field Work Completed.
Strength Analysis in Process.
Maint. of Air Gap Mapping of Air Gaps Between Concrete Is Complete.
Corrective Action in Progress.
Seismic Design of Gibbs & Hill Designing Control. Room Ceiling New Ceiling Elements i
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12 Item Status Rebar in the Fuel Evaluation Complete.
Handling Building Results Report in Review Process.
Hot Functional (HFT)
Review Completed.
Data Packages Preparing Results Report.
i JTG Approval of Test Work Complete. Results Data Report in Review Cycle.
Technical Specification Work complete. Results For Deferred Tests Report in Review Cycle.
Traceability of Test Work complete. Results Equipment Report in Review Cycle.
Conduct of CILRT Work Complete. Preparing i
Results Report.
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13 Item Status Prerequisite Testing Evaluation Complete.
Preparing Results Report Preoperational Testing Review in Progress Skewed Welds in NF Inspection of Skewed Supports Welds in Process Steam Generator Work on " Hold". Awaiting Anchor Bolts Completion of Evaluation By SWEC/EBASC0/GEH.
Design Consideration Reanalysis Completed.
For Piping Systems Bet.
Preparing Results Seis CAT I & Non-Seismic Report.
Cat I Bldgs.
Plug Welds Inspection For Plug Welds Started, u._
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14 Item Status Installation of Main Evaluation Complete.
Steam Pipes Preparing Results Report.
Gap Between Reactor Design Change Vessel Insulation &
Review in Process.
Biological Shield Wall I
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Polar Crane Shimming Southwest Research To Perform Load Cell /
Strain Gauge Testing on Crane Rail Movement.
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