ML13309A859

V. C. Summer Construction Status and Lesson Learned AD Torres

ML13309A859
Person / Time
Site:	Summer
Issue date:	11/05/2013
From:	South Carolina Electric & Gas Co
To:	Office of New Reactors
Bloom S D, NRO/DCIP/IGCB, 415-2431
References
Download: ML13309A859 (26)

Text

VCSummerConstructionStatus V C Summer Construction Status and Lesson LearnedAD Torres Unit 2 & 3 Construction Status jil Ma j or M ilestones*Completed Unit 2 Concrete Basemat

• Unit 2 Pouring of Major Auxiliary Building Walls

• Set U2 containment vessel bottom head FbiddSU2CddTbi Bld Sl*F a b r i cate d an d Set U2 C on densers an d T ur bi ne Bld Stee l*Fabricated and Set Reactor Cavity Module

• ReceivedUnit2Reactorvesselonsite

• Received Unit 2 Reactor vessel on site*Installed Unit 3 basematrebar and completed BasematPour iil()Un i t 2 F irst Nuc lear Concrete (FNC)*First safety-related nuclearconcrete nuclear concrete placed in over 30 years*7,000 yds 3 of continuously placed concreteconcrete*Placement began on March 9, 2011 and ltditl l as t e d approx i ma t e l y 52 hours6.018519e-4 days <br />0.0144 hours <br />8.597884e-5 weeks <br />1.9786e-5 months <br /> Setting of U2 CR10 Settin g of Unit2 Containment Vessel Bottom Head g (CVBH)*Set Date: 05/22/13

• Design Weight: 936 Tons

• Linear Feet of Weld: 2,253LiFtfRidWld22

• Li near F ee t o f R epa i re d W e ld: 22*Weld Acceptance Rate: 99.02%

Settin g of U2 CVBH g

U2ContainmentVessel(CV)Rings U2 Containment Vessel (CV) RingsCV Lower Ring is made up of:

FC*F our Courses*A lower and an Upper Equipment Hatch

• A lower and an Upper Personnel Hatch ff*An external Sti ff enerCVLower RingCV Middle Ring is made up of

• Four Courses

• AninternalStiffenerCV Middle Ring An internal Stiffener U2 Containment Vessel Rin g 1 Coatin g s ggSteel surface preparation for inorganic zinc applicationInorganic zinc application in progress on U2 CV Ring 1 Unit3ContainmentVesselBottomHead(CVBH)

Unit 3 Containment Vessel Bottom Head (CVBH)June 2013October2013October 2013 Inside Containment CB65RtCltDiTkR CB66RCDT/RtCttP CB65 -R eac t or C oo l an t D ra i n T an k R oom CB66 -RCDT/ R eac t or C ompar t men t Passageway CB65 CA04 CB66 Unit 2 CA04 Module

• Reactor Vessel Cavity

• Dimensions: 21'-0" W x 26'-6" H

• Approx. Design Weight: 90,000 lbs.

• Approx. 7,661 linear feet of weld

• Installed1436shearstudsInstalled 1 , 436 shear studs Unit 2 CA04 Module

• Lift and set with the Heavy Lift Derrick (HLD)

• Date:09/27/13Date: 09/27/13 Ui2AiliWllPl U n i t 2 A ux iliary W a ll Placements*16feettall3feetthick

• 16 feet tall , 3 feet thick*Top Elevation is 82'6"

• Line I, Area 5 completed 8/24/13*Line I, Area 2-3 completed 9/28/13 9/28/13*Line I, Area 4-7 completed 10/17/13 Unit 2 Aux Building Rebar InstallationColumn Lines I, 2, 4, 5, 11, and Q, up to El 82' 6" is substantially complete ColumnLineQColumnLine11lookingeasttowest Column Line Q Column Line 11 , looking east to west.

U2 TB Ma j or Com ponent Installation jpCondenser B Lower Shell July 2013700 TonsSouthTGSupportCH80August2013 South TG Support CH80 August 2013650 Tons U2 TB Ma j or Com ponent Installation jpCenterTGSupportCH81ACtTGStCH81BCenter TG Support CH81A October 2013220 Tons C en t er TG S uppor t CH81B October 2013220 Tons U2 TB Ma j or E q ui pment DeliveriesjqpDeaerator MSRLP Turbine Rotor Unit3Basemat Unit 3 BasematUnit 3 Basemat in June 2013Unit 3 Basemat in Oct 2013 Ui3BRbIlli U n i t 3 Basemat R e b ar Insta ll at i onShield Building Rebar, looking NorthtoSouthBattery Room Rebar , looking westtoeast North to Southwest to east Ui3B U n i t 3 Base mat pour Unit2CA20Module Unit 2 CA20 Module*Approx. 85% of sub-modules have been dlid d e livere d*Assembly is ongoing within the Module Assembly Building (MAB)

• To date 11 wall sub-modules have been erected on the platen ToshibaMainStepUpTransformers

-230/26kVToshiba Main Step Up Transformers 230/26kVAssembly weight with oil -529,800lbs eachMain Tanks

• 3 in service, 1 spare

• 12,720 gallons each

• StoredAirFilledConservator Tanks

• Oil reservoir

• 730 gallons each

• StoredAirFilledStored Air FilledStored Air Filled VCSummerUnits2and3Switchyard VC Summer Units 2 and 3 Switchyard

• Online February 12, 2013

• Connection of 230kV transmission lines for SCE&G, and Santee Cooper

• Lar gest switch yard in the SCE&G S ystemgyy LLd L esson L earne dCditifthldtd

• C oor di na tion o f groups t o h e l p un ders t an d ITAAC*Strengthening the procedural controls of ITAAC programs-Roles and responsibilities for groups

-Stakeholder buy in

• Review of corrective action programs LLd L esson L earne dUdtdidditifITAACi

• U n ders t an ding an d coor di na tion o f ITAAC i ssues away from site.

-Vendor inspections(NRC and Consortium)

-Vendor corrective actions that have a material ffITAAC e ff ect ITAAC*Development of a common understanding of what is meant by material effects on an ITAAC's acceptance criteria.