Nuclear Steam Generator Replacement


Plant:
Project:
Unit:
Location:
Owner:
Year:

Catawba Nuclear Station

Unit #1
York, SC
Duke Energy Corporation
1994-1995









Scope:

Bigge Power Constructors, as subcontractor to Duke, performed the following nuclear steam generator (SG) work involving heavy lift and heavy transportation.

  • Engineered solutions to the SG lift and transportation
  • Installed specialized Bigge SG handling equipment in the Catawba Containment
  • Lifted and removed four existing 425-ton SG’s from Containment
  • Moved into Containment, lifted and set the four replacement 425-ton SG’s
  • Transported the original SG’s by platform trailer to onsite entombment

Job Challenges:

Bigge Constructors will successfully deal with the following challenges on this project.

  • Handling of four SG’s, a total of 1,700 tons
  • Engineering unique solutions including an up-ending cart, a 1,000 ton gantry and platform for the elevated equipment hatch, and a through-hatch runway system
  • Utilizing Bigge’s Temporary Lifting Device atop the Polar Crane for lifting and setting SG’s
  • Utilizing Bigge’s Allied crane for handling equipment in containment
Bigge Power Constructors
Revised March 10, 2005

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