ML20052F592
| ML20052F592 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 03/05/1982 |
| From: | Ellis W NORTHEAST NUCLEAR ENERGY CO. |
| To: | NRC |
| Shared Package | |
| ML20052F585 | List: |
| References | |
| NUDOCS 8205130222 | |
| Download: ML20052F592 (12) | |
Text
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fmECW @01 L LTJ ::'C';':,:"'.=.'lr2l March 5,1982 Gentl emen:
SUBJECT:
MILLSTONE UNIT NO. 3 THIRTY-THIRD QUARTERLY REPORT In accordance with Section 7 of our Sharing Agreement,1979 Connecticut Nuclear Unit, we are transmitting herewith our Thirty-third (33)
Quarterly Report of Design and Construction Progress dated December 31, 1981. This report summarizes the current engineering, purchasing, licensing, and construction status of the Millstone Unit No. 3 Project.
Very truly yours, NORTHEAST NUCLEAR ENERGY COMPANY W. B. Ellis President Attachment 8205130222 820511 PDR ADOCK 05000423 A PDR
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DECEMBER 31, 1981 MILLSTONE NUCLEAR POWER STATION - UNIT NO. 3 WATERFORD, CONNECTICUT QUARTERLY REPORT OF DESIGN & CONSTRUCTION STATUS REPORT NO. 33 The Connecticut Light and Peser Company The Hartford Electric Light Company Western Massachusetts Electric Company Northeast Nuclear Energy Company Fitchburg Gas and Electric Light Company Chicopee Electric Light Department Central Vermont Public Service Corporation Burlington Electric Light Department Eastern Utilities Associates Massachusetts Municipal Wholesale Electric Canpany New England Power Company The United Illuminating Company Public Service Company of New Hampshire Vermont Electric Cooperative, Inc.
Central Maine Power Co.
Lyndonville Electric Department
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I.
SUMMARY
This report summarizes' the status of Millstone Unit No. 3 Project as of Decemoer 31, 1981. Construction progressed smoothly at an accelerated pace during the fourth quarter of 1981. The scheduled commercial inservice date of the unit remains May 1986.
The site construction force was increased during the reporting period from 2,285 at the end of September to 2,365 at the end of December.
Site Construction activity was concentrated in the following areas:
structural, pipefitting, and cable tray and conduit work in the containment; fitup and welding for the hot leg of the reactor coolant loop piping, with platform and coils for "A" and "B" completed and the platform in cubicle "C" nearing completion. Installation of the main steam system piping in the annulus area above and below elevation 51'-4". Lighting conduit installation at elevation 24'-6", with cable tray supports and cable trays. Ductwork and supports, with fabrication of the ring duct plenum; supplementary pipe support steel, piping installation and cable tray and lighting in the Engineered Safety Features Building; structural, mechanical and piping work and progress in cable tray installation in the Auxiliary Building; structural, pipefitting, equipment installation and electrical cable tray installation in the Intake Structure; structural, concrete work for the fuel pool walls and piping and pipe racks in the Fuel Building; structural work, mechanical ductwork and cable tray installation in the Service Building; backfill of cable trenches and concrete placement in the Emergency Generator Enclosure; cable tray, lighting, normal switchgear, ductwork, plates and hanger installation in the Control Building; embedded drains under the mat in the Waste Disposal Building; concrete pouring and structural work in the Main Steam Valve Building; mechanical equipment piping and platforms, condenser tube installation, cable trays, conduits and cable pulls, HVAC ductwork in the Turbine Building.
II. LICENSING l A. Nuclear Regulatory Commission (NRC)
The drafting and review of Stone & Webster, Westinghouse, and NUSCO t
FSAR and ER sections continues. Final sign-off of FSAR sections is l scheduled for May 1982 with submittal to the NRC in November 1982.
l Between September 30 to December 31, 1981 there were four NRC exit interviews following NRC inspections. Three items of noncompliance l were identified and are being resolved, i
III. ENGINEERING, DESIGN AND PURCHASING l
The Stone & Webster production engineering effort continued in accordance with the present schedule for a May 1986 commercial inservice date.
Stone & Webster has added Engineers, Designers, and Draftsmen to accelerate the production engineering effort which continued in the areas of specification revision, preparation and release for bids; flow diagram revision and finalization, wiring and logic diagram issuance, piping and instrument
! diagram issuance, setpoint calculations, and system description preparation,
- review and tssuance.
1
Mechanical production engineering effort centered on many activities including the following: Review Westinghouse fuel rack proposal, inves-tigate and coordinate activities for probabilistic risk assessment (PRA) support, finalization of ASME XI repair of pressurizer safety valves, continued waste solidifcation engineering and layout, primary grade water system, post-accident sample system engineering and layout and Hydrogen recombiner building layout continued; development of system setpoint documentation and supported inservice inspection program development activities by NUSC0; effort on IEEE-323 environmental qualification of electrical motors and actuators continues on various purchase orders.
Work continued on comment resolution and final draft of FSAR and system description; engineering effort expanded in support of issuing direct support drawings (BZ packages); tornado dampers for Control Building and Emergency Generator Building were purchased; zone by zone analysis of
" Appendix R" imoact evaluation continued; failure modes and effects analysis complete for 75% of the systems to be evaluated; containment LOCA analysis continued, also for recirculation system pump NPSH, main steam line break and hydrogen generator and control analysis; dose rate determination of the turbine driven auxiliary feedwater pump turbine radiation monitor; reactor coolant pump and steam generator supports installation procedures were issued to NUSCO and Westinghouse review; completed seismic documentation review including a study of electrical equipment in the control room, instrumentation rack room and switchgear room. Interfacing Class 1 piping stress analysis with Teledyne Engineering Services and coordinating with stress design in completion of Class I stress analysis; study of elimination of pipe support reinforcing posts is in progress; stress analysis of small bore piping and standard support details efforts in progress.
The electrical production engineering activities for the quarter included:
qualification and documentation of electrical equipment to IEEE 323-1974 including development.of a computerized documentation retrieval system; work continued on wiring diagrams for termination cabinets, 480 volt load centers, motor control _ centers, NSSS protection racks, tray drawings, and support details, exposed and concealed conduit plans, lighting drawings, communications drawings, grounding drawings for the Containment, Turbine, Auxiliary and Control Buildings. Work also continued on the detailed engineering for the 480V load centers, motor control centers, switchgear, main transformers, linhting panels, ac and dc distribution panels, main generator, automitic oscillograph, NSSS, and generator breaker; continued study work to provide backup overcurrent protection for containment electrical pen 9trations (R.G.1.63); procedure development for Grounding Criteria and lastallation Details (NERM-21);
work continued on preparation of analysis in support of the Appendix R review; FSAR and system description.
Iastrumentation and control production effort this quarter involving the following: review and approval of Main Control Board drawings progressed with shipment of Main Boards five, six and seven; work proceeded on Isolation Cabinets, Auxiliary Shutdown Panels, Main Ventilation Panel, Local Auxiliary Control Panels and Fire Protection Panel. The Main
l Ventilation Panel was increased in size to accommodate terminal blocks and other space requirements. Work continued on revision, elementary diagrams of the Main Control Boards; review of Reports to IEEE 323-1974 for the solenoid valves, limit switches, level switches were completed; work continued on review of Instrument Installation, Piping and Tubing, Level Transmitters, Vibration Monitoring, Loose Parts Monitoring; work continued on thermal analysis of instrument cable which was not qualified to the Main Steam Line Break Temperature envelope, FSAR, System Description preparation and review, and Condensate and Feedwater transient analysis.
The structural engineering production effort involved resolving field construction problems and design of the Auxiliary Building, Service Building, Control Building, Turbine Building, Discharge Tunnel, Intake Structure, ESF Building, Containment Structure; the design of the Fuel Building, Waste Disposal Building, outfall structure, Yard and Main Steam Valve Building continues.
IV. CONSTRUCTION The percent complete was lowered from 45.8% to 40% at the end of this quarter in anticipation of additional hours being identified during the upcoming reestimate. The reason was to establish a real goal of 20%
complete for 1982. At the end of the year the physical work based on direct manhours is projected to be 60% complete. This change in percent complete has been accounted for in current project plannin , and has no effect on Unit Schedule Inservice date. (See Attachment 3 .
Turbine Building Erection of miscellaneous platforms continued throughout the building, as well as painting and finish work. Work continued on feedwater, moisture separator, companent cooling, heater drains and the water treating piping systems. Installation of the 16 is,i.h and 30 inch main steam system and the push tubes for condensers A, B and C are nearly complete. The cable pulls for the motor control center internals was well underway. Fabrication of duct work at elevation 64'-6" was nearly complete.
Containment Structure Work started and continued on welding of the refueling cavity liner and installation of the kick panel. At elevation 51'-4" the reinforcing and embedments for cubicle "C" were nearing completion. The concrete slab for cubicle "D" has been placed.
Fitup and welding of the hot leg reactor coolant loop piping in cubicle "D" continued. In th hot leg cubicles "A" and "B", work on the feedwater installations continued. Setting of the steam generator wall clevis was underway , with additional progress for the lower pressure safety injection system.
Installation of cooling coil "B" was complete at elevation -24'-6".
The following piping systems work progressed below 51'-4" elevation: low and high pressure safety injection, chemical and volume control, reactor coolant system, component cooling, neutron shield tank and cooling, primary
grade water and spent fuel systems. Lighting conduit work continued in the lower elevations, and cable tray installations at elevation 51'-4" continued.
Repair procedure for the localized fire reported during the last reporting period causing minor damage to the liner has been completed. The repair plan is to remove all affected liner material and replace it with site inventory. Cutting of the rebar started, coring and testing of additional liner material started.
Auxiliary Building Erection of the cubicle walls between elevations 79'-0" and 93'-0" was underway. Stripping of shoring for the walls and slabs to elevation 66'-6" was nearing completion.
Work continued on the following piping systems: auxiliary steam, high and low safety injection, component cooling, condensate demineralizer, liquid waste, chemical volume control, boron recovery, construction gas, solid waste, chilled water, service water and containment vacuum. Cable tray and conduit installation on both elevation 4'-6" and 24'-6".
Control Building Setting of the chillers was completed at elevation 84'-6". Work proceeded for deck installation at the 51.i line west of "C" line at 84'-6" elevation.
Halon system piping for fire protection has been installed. Work continued for installation of the temporary HVAC and door and seal openings. The ductwork installation proceeded in the control room, and instrument rack room. The normal switchgear installation was completed. Cable trays at elevation 4'-6" and 24'6" were all underway. The control room lighting grid started.
Engineered Safety Features Building The civil work was essentially completed for this structure with the exception of supplementary steel for pipe supports throughout the building.
Installation of piping systems, cable tray and conduit continued at all three elevations.
Scrvice Building Structural steel erection for the roof and penthouse, as well as the decking was almost complete up to elevation 52'6". Rubbing and patching continued on the lower elevations. Erection of support steel, fabrication of ducts proceeded for HVAC work at elevation 4'-6". Work also continued on fabri-cation and erection of cable tray supports, as well as fireproofing at the 4 '-6" elevation.
Yard No activity took place this quarter.
Emergency Generator Enclosure Work continued on the "A" and "B" cable trenches, with placement of the walls to elevation 23'-6" complete. The work for the generator excitation pipe was completed. The two Colt diesel generators were on site during the reporting period.
Main Steam Valve Building Work continued for shoring, reinforcing, embeds and embedded conduit of the slab at elevation 41'-0". Embedded drains below elevation 41'-0" were completed.
Office Building No activity took place this quarter.
Intake Structure (Pump House)
Work continued for placing of roof slab. Work was also initiated for the built-up roofing, and the backfill operations were completed.
Setting and aligning of the six circulating pumps were complete. Work was underway for installation of the circulating water piping to pumps lA, 18 and 1C. The painting of electrical trays, conduits and supports were underway. Installation of raised sills for the motor control centers were completed.
Discharge Tunnel No activity took place this quarter.
Fuel Building Placing of the fuel pool concrete and fuel pool and transfer canal walls
' to elevation 16'-0" were completed. Fitup and welding of the transfer canal liner continued for both the floor and walls. Work started for installation of the component cooling pipe system.
V. SCHEDULE The commercial inservice date remains May 1986. No critical areas are behind schedule more than a few weeks and many areas are ahead of schedule.
VI. PROJECT ESTIMATE AND CASH FLOW Attached is the Millstone Unit No. 3 Estimated Cash Expenditures Forecast for the quarter ended December 31,1981 (Attachment 1) . The cash expen-ditures provide for a May 1986 commercial inservice date. Unit expenditures, site and common facilities and nuclear fuel have been updated to reflect actual expenditures through December 1981.
VII. NUCLEAR FUEL The Estimated Nuclear Fuel Expenditure Report (Attachment 2) has been updated to include actual expenditures through December 31, 1981 and includes estimated monthly expenditures for 1982.
The nuclear fuel expenditures reflect the settlement of the uranium litigation with Westinghouse Electric Corporation. The estimated credits im this settlement are shown separately and encompass fuel and plant services and equipment to be provided by Westinghouse for Millstone Unit 3 either at no cost or at a discount. Credits associated with non-fuel services and equipment are shown as a reduction in nuclear fuel cash flow. Additional credits are expected to extend into the early 1990s.
Revised estimated for settlement credits are included in this report and reflect a delay in some equipment and services to be provided under the Settlement Agreement.
Arrangements have been made to upgrade a portion of the existing natural UF6 inventory to enriched UF This action will result in utilization ofthe$4.1milliondownpayhe.nt previously paid to D0E. This down payment has been accruing interest at 7%/ year, which is substantially lower than the escalation rate on enrichment prices. This material will be stored at DOE until it is required for the initial core.
Proposed Fuel Financing Arrangements The Lead Participants are presently making arrangements to finance. their 65% undivided interest in the fuel for Millstone Unit 3. It is expected that these arrangements will take the form of a Nuclear Fuel Lease Agreement between the three Lead Participants and a bank, acting as trustee of a special purpose trust. Under the Lease Agreement, the trustee will agree to make payments to fuel vendors for the Lead Participants' 65% interest in the fuel and/or to reimburse the Lead Participants for payments previously made by them to fuel vendors for their 65% interest in the fuel. The Lead Participants will be obligated under the Lease Agreement to make quarterly lease payments to the trustee which will be calculated so as to fully reimburse the trustee for all of its expenses with respect to their 65% interest in the fuel as it is burned up, includ*ng all payments to fuel vendors and/or the Lead Participants and all finance charges incurred by the trustee. The trustee will obtain the funds necessary to make payments to the Lead Partipants and/or fuel l vendors by selling commercial paper of the trust which will be backed by an irrevocable letter of credit of one or more banks. The trust will also have the ability to borrow directly from the banks under a revolving credit loan arrangement. During the period that the Lead Participants' interest in the fuel is being financed by the trust, the trust will hold title to that 65% interest and the associated interest of the Lead Parti-l cipants in the nuclear fuel contract rights. The trust, in turn, will
! grant a security interest in the 65% interest in the fuel and contract f rights to the banks and commercial paper noteholders. These arrangements will also cover Millstone Units 1 and 2. They will not cover the other Participants' share of the fuel expenses for Millstone Unit 3.
l
In addition to the commercial paper and revolving credit loan sources of funding described above, the trust may also sell intermediate term (four to eight year) notes to institutional investors in order to raise funds. These notes would also be secured by a security interest in the Lead Participants' 65% interest in the fuel and contract rights.
The Lead Participants are presently evaluating proposals from banks for the letter-of-credit-backed commercial paper and revolving credit loan portion of this program. It is estimated that this phase of the financing will become effective during the fourth quarter of 1981 and that the intermediate term note portion of the program will be added in 1982.
Attachment 1 .
MILLSTONE UNIT No. 3 Estimated Cash Expenditures Forecast Exclusive of Allowance f or Funds Used During Construction (Dollars X100M CL'MUI.AT IVE CUMULATIVE SITE & COMMON CUMUIATIVE TOTAL CUMULATIVE TOTAL TOTAL OF PROJECT UNIT TOTAL OF UNIT EXPENDITURES FACILITIES OF SITE & COtC10N NUCLEAR ITEL NUCLEAR FUEL EXPEDITING EXPENDITURES FOR PERIOD FACILITIES THROUGH PERIOD FOR PERIOD THROUCH PERIOD THOUCH PERIOD PERIOD FOR PERIOD THROUGH PERIOD Expended thru 832,379 832,379 16,284 16,284 41,725 41,725 890.388 12/31/81 1/1/82 - 17,491 (856) 40,869 948,352 3/31/82 57,613 889,992 1,207 4/1/82 - 18,768 (1,176) 39,693 1,018,936 6/30/82 70,483 960,475 1,277 7/1/82 - 20,040 (1, 340) 38,353 1,090,620 9/ 30 /8 2 71,752 1,032,227 ,
1,272 10/1/82 - 21,301 27,347 65,700 1,193,150 12/31/82 73,922 1,106,149 1,261 1,363,432 26,607 (6,182) 59.517 1,449,556 1983 257,283 5.306 5,280 31,887 5,995 65,512 1,653,071 1984 192,240 1,555,672 128,260 1,683,932 5.015 36,903 80,567 146,079 1,866,914 1985 31,068 1,715,000 4,815 41,718 7,030 153.109 1,909,827 1936
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