ML13309A859
| ML13309A859 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 11/05/2013 |
| From: | South Carolina Electric & Gas Co |
| To: | Office of New Reactors |
| Bloom S, NRO/DCIP/IGCB, 415-2431 | |
| References | |
| Download: ML13309A859 (26) | |
Text
V C Summer Construction Status V C Summer Construction Status and Lesson Learned AD Torres
Unit 2 & 3 Construction Status
j il Major Milestones
- Completed Unit 2 Concrete Basemat
- Unit 2 Pouring of Major Auxiliary Building Walls
- Set U2 containment vessel bottom head F b i d
d S U2 C d
d T bi Bld S l
- Fabricated and Set U2 Condensers and Turbine Bld Steel
- Fabricated and Set Reactor Cavity Module
- Received Unit 2 Reactor vessel on site
- Received Unit 2 Reactor vessel on site
- Installed Unit 3 basemat rebar and completed Basemat Pour
i i
l
(
)
Unit 2 First Nuclear Concrete (FNC)
- First safety-related nuclear concrete nuclear concrete placed in over 30 years
- 7,000 yds3 of continuously placed concrete concrete
- Placement began on March 9, 2011 and l
t d i
t l lasted approximately 52 hours6.018519e-4 days <br />0.0144 hours <br />8.597884e-5 weeks <br />1.9786e-5 months <br />
Setting of U2 CR10
Setting of Unit2 Containment Vessel Bottom Head g
(CVBH)
- Set Date: 05/22/13
- Design Weight: 936 Tons
- Linear Feet of Weld: 2,253 Li F
t f R i
d W ld 22
- Linear Feet of Repaired Weld: 22
- Weld Acceptance Rate: 99.02%
Setting of U2 CVBH g
U2 Containment Vessel (CV) Rings U2 Containment Vessel (CV) Rings CV Lower Ring is made up of:
F C
- Four Courses
- A lower and an Upper Equipment Hatch
- A lower and an Upper Personnel Hatch ff
- An external Stiffener CV Lower Ring CV Middle Ring is made up of:
- Four Courses
U2 Containment Vessel Ring 1 Coatings g
g Steel surface preparation for inorganic zinc application Inorganic zinc application in progress on U2 CV Ring 1
Unit 3 Containment Vessel Bottom Head (CVBH)
Unit 3 Containment Vessel Bottom Head (CVBH)
June 2013 October 2013 October 2013
Inside Containment CB65 R
t C
l t D i T k R CB66 RCDT/ R t
C t
t P CB65 - Reactor Coolant Drain Tank Room CB66 - RCDT/ Reactor Compartment 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
- Installed 1 436 shear studs Installed 1,436 shear studs
Unit 2 CA04 Module
- Lift and set with the Heavy Lift Derrick (HLD)
- Date: 09/27/13 Date: 09/27/13
U i 2 A ili W ll Pl Unit 2 Auxiliary Wall Placements 16 feet tall 3 feet thick 16 feet tall, 3 feet thick Top Elevation is 826 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 Installation Column Lines I, 2, 4, 5, 11, and Q, up to El 82 6 is substantially complete Column Line Q Column Line 11 looking east to west Column Line Q Column Line 11, looking east to west.
U2 TB Major Component Installation j
p Condenser B Lower Shell July 2013 700 Tons South TG Support CH80 August 2013 South TG Support CH80 August 2013 650 Tons
U2 TB Major Component Installation j
p Center TG Support CH81A C
t TG S t CH81B Center TG Support CH81A October 2013 220 Tons Center TG Support CH81B October 2013 220 Tons
U2 TB Major Equipment Deliveries j
q p Deaerator MSR LP Turbine Rotor
Unit 3 Basemat Unit 3 Basemat Unit 3 Basemat in June 2013 Unit 3 Basemat in Oct 2013
U i 3 B R b I
ll i
Unit 3 Basemat Rebar Installation Shield Building Rebar, looking North to South Battery Room Rebar, looking west to east North to South west to east
U i 3 B Unit 3 Base mat pour
Unit 2 CA20 Module Unit 2 CA20 Module
- Approx. 85% of sub-modules have been d li d
delivered
- Assembly is ongoing within the Module Assembly Building (MAB)
- To date 11 wall sub-modules have been erected on the platen
Toshiba Main Step Up Transformers - 230/26kV Toshiba Main Step Up Transformers 230/26kV Assembly weight with oil - 529,800lbs each Main Tanks
- 3 in service, 1 spare
- 12,720 gallons each
- Stored Air Filled Conservator Tanks
- Oil reservoir
- 730 gallons each
- Stored Air Filled Stored Air Filled Stored Air Filled
VC Summer Units 2 and 3 Switchyard VC Summer Units 2 and 3 Switchyard
- Online February 12, 2013
- Connection of 230kV transmission lines for SCE&G, and Santee Cooper
- Largest switchyard in the SCE&G System g
y y
L L
d Lesson Learned C
di ti f
t h l d
t d
- Coordination of groups to help understand ITAAC
- Strengthening the procedural controls of ITAAC programs
- Roles and responsibilities for groups
- Stakeholder buy in
- Review of corrective action programs
L L
d Lesson Learned U d t
di d
di ti f ITAAC i
- Understanding and coordination of ITAAC issues away from site.
- Vendor inspections(NRC and Consortium)
- Vendor corrective actions that have a material ff ITAAC effect ITAAC
- Development of a common understanding of what is meant by material effects on an ITAACs acceptance criteria.