ML20115A723
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MAY, 1980 SCHEDULE STATUS TO ILLINOIS COMMERCE COMMISSION 4
FOR ILLINOIS POWER COMPANY'S L
CLINTON UNIT NO. 1 PROJECT i
c 85041g518 840606 kNLEFEB-367 PDR 3
r-STATUS
SUMMARY
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During the April, 1980 report period, performance against the project summary target schedule has shown some slippage in the area of electrical work.
Hanpower levels fell below those originally projected.
Overall productivity levels continue toremainabove{/those projected for both direct labor and support v)orse activities. -Ws continue to have vendors forecasting slippage in future equipment deliveries, which could impact the construction schedule.
Additional corrective action programs are under development.
We are hopeful that improvements in recently identified critical paths will be realized as a result of these corrective action
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programs.
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W CONTAINMENT Major civil activities in the containment building continue to be in the area of the upper fuel pool liners.
Welding of the pool liners should be completed in early May.
Rebar installation continues concurrently and will support the first concrete placement between fuel pools now scheduled for the second week of May.
All shoring has been removed from below the 803 elevation thus allowing the erection of structural steel platforms outside of the drywell.
This platform installation, coupled with the application of finished nuclear coatings for all exposed
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concrete walls, will progressively open areas critical to mechanical construction.
Lighting and communication conduit installation continues at elevation 737 and, pending engineering releases, will begin at elevation 755 by early May.
The delivery of main steam bellows this month allowed piping work to resume on this system.
The installation of bc 1 feed water residual heat removal and reactor isolation cooling piping will commence by early May.
Inside the drywell'several mechanical piping systems are in progress.
The closure templates for reactor recirculation discharge and suction spools have been fabricated.
The spools are being shipped offsite for machining.
Under the reactor pressure vessel the incore housing install-ation was completed the week of April 11, 1980.
Control Rod h-
. Drive housing installation commenced on a double shifted effort
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the last half of April.
This activity in conjunction with the reactor monitoring flexible conduit installation is expected to be completed in si;t months.
FUEL BUILDING Concrete was placed for the final exterior wall on April 18, 1980.
The major slab at the top of the fuel pools, elevation 755 feet, was placed on April 23.
Completion of these concrete activities will allow the erection of structural steel to commence in early May.
The intermediate slab at elevation 781 feet will be bypassed to expedite the enclosure of this last Clinton Unit 1 building during June.
Piping and electrical erection have been curtailed ks on the lower elevations of this building due to the shoring supports for the elevation 755 slab.
Concrete placement for this slab was delayed into this month due to electrical design revisions.
AUXILIARY BUILDING Concrete was placed for the mezzanine slab at elevation 750 feet in mid April.
The removal of shoring in late April released this area for piping and electrical construction.
The last remaining wall in this building will be held out until limited access pipe spools are moved into place.
Gas boundary steel and electrical penetration work on elevation 762 is essentially. complete.
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The installation of switchgear rails for both the 4,160 volt and 6,900 volt switchgear on elevations 762 feet and 781 feet continue.
Concrete for the remaining finished floors around these equipment sites will be placed in early May.
Erection of nonsegregated bus duct continues,with hanger design and misfabrication still inpeding progress on this work.
The rate of bus duct installation has delayed erection of cable tray and conduit in this building.
Work is presently under way on the repairs to the bearing area on the RHR heat exchanger legs.
The appropriate engineering authorities approved the repair procedures in mid April.
Repairs to the first unit will be completed by early May, with repairs to the second unit conpleted about three weeks later.
Completion of this work will release approxi-mately 50 piping spools for installation.
The installation of k.,
large and small bore piping and hangers continues on the lower four elevations of this building.
TURBINE BUILDING The placement of roofing aggregate this month completed the turbine room roof, with the exception of construction openings.
Other civil work continues with twelve of the thirty-six wall pours in.the heater bays complete.
Concrete was placed in two najor temporary construction openings in the elevation 800 floor slab.
These openings were provided to allow for setting the moisture separator reheaters.
When the shoring for these pours is removed during May large areas of the turbine building will be opened to piping and electrical work.
Condenser tubing continues at an average rate of 540 tubes per day.
Extraction steam piping
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.... _ _ _ is also being erected in the condenser to support the placement
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of the lower turbine exhaust hoods.
Throughout the building bulk commodity installation continues for large and small bore piping, cable tray and conduit, in'stru-mentation and equipment, and wire and cable pulling.
All of these activities remain ahead of schedule.
CONTROL BUILDING Fireproofing of the structural steel above the control room floor was completed during the month of April.
The installation of HVAC duct and cable tray is proceeding on a full production two shift basis for the Unit 1 control room area.
At elevation 825 feet the application of waterproof membrane is now complete, allowing the placement of finish floor slabs k-in support of the installation of HVAC air handling units early in May.
Piping and mechanical work continue and remain ahead of schedule on all elevations of this building.
However, the projected late delivery of certain switchgear and control panels is resulting in projected delays to the electrical and instrumentation construction for this building.
Expediting of this equipment and other corrective action will continue l
in an effort to minimize the overall impact of these late equipment deliveries.
l DIESEL GENERATOR _PUILDING The installation of piping and electrical commodities in this non-critical building continued at a slow pace as manpower i
is being concentrated in more critical areas.
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4 Permanent roof installation commenced this month.
The
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equipment tunnel roof, a few equipnent foundations, and closure of temporary construction openings are the only civil construction activities that remain in this building.
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RADWASTE BUILDING
,1 Concrete placement continues forc the Oa11s ' and. roof slab in preparation for the elevator subcontractor's nobilizat' ion in mid g
May.
The erection of structural steel for the elevator is under way.
The close-in of selected construction openings, and install-ation of block walls continue in support of electrical and mechanical installation.
Piping erection continues throughout the building and remains ahead of schedule with the exception of such minor systems as
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floor drains.
This piping will not delay startup turnovers.
If required, a temporary systen will be installed to remove testing water from the sumps.
Cable tray installation continues ahead of schedule in this building and bulk cable pulling has started this month.
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SCREENHOUSE The thirty ton crane for serhicing" traveling screens was set during April.
The installation of hoisting cable and the energi-i zation and testing required for turnover is scheduled for May.
Installation of block walls and painting continue in this low priority area.
YARD ss, The grade beams for the flammable material storage building l
i were completed during this reporting period.
. Main transformer assembly continued with oil fill of the 1
four transformers being completed during April.
The weld out of
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isophase bus will be completed later this summer.
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LABOR FORCE During. April, the average work force consisted of:
Labor Force Baldwin Associates Subcontractor Total Manual 2,734
.151' 2,885 Nonmanual 526 24 550 Total 3,260
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