REA:

Date: Nov. 12, 2008

NAME: Patrick WaldenDIVISION: SciencePHONE #: 7340

PROJECT TITLE:

TUDA racks at ISAC-II

PROJECT DESCRIPTION: (Add sheets if necessary)

Modification of the TUDA racks to make them mobile and transportable between the TUDA shack and SEBT1 in ISAC-II. See additional details

EXPECTED SCHEDULE: The racks must be located at SEBT1 by about Jan. 15, 2008

FUNDING OR APPROVAL STATUS: PLEASE PROVIDE ACCOUNT NUMBER AND

SUB-ACCOUNT:

Account: Sub-Account:

2326ELECTRON

ENGINEERING ASSESSMENT: (To be completed by Engineering Division)

GRADED RISK ASSESSMENT:Date Assessed:

Low Moderate Critical

DESIGN OFFICE:

ASSIGN TO/DATE:

CLOSURE INFORMATION: SEE OVER

Sheet 1 of 3

CLOSURE INFORMATION:

TUDA racks at ISAC-II

Project description (continued):

  • The ability to rotate the racks inside the shack by 90° must be verified on a layout. TUDA shack is 360.5cm wide. The racks are 258.5cm long. The shack is 360.5cm long.
  • Alternative placement of the racks inside the shack and electrical hookup must be investigated at this time.
  • Disconnect the electrical conduits powering up each rack
  • Disconnect the copper grounding bar going to each rack
  • Disconnect all cables to the racks and pull them up a store in the overhead cable tray.
  • Make the 4 inside electronics rack one solid structure.
  • Attach lifting lugs on the 4 racks such that they can be lifted as a unit. The lifting lugs cannot exceed the height of the racks by more than 4 cm.
  • Mount the entire 4 rack structure on wheels. The wheels must be non-conducting so that the racks are electrically floating. The wheels must lockable so that the racks can be fixed in a desired position.
  • Rotate the racks and move the racks outside the shack.
  • Lift the racks and place them on the mobile cart.
  • Move the cart and racks over to SEBT1 in ISAC-II
  • Lift up the racks and place onto the ISAC-II floor.
  • Move the racks into position and lock into place.
  • Electrical work can now commence on the racks and at SEBT1 and the TUDA shack to make the racks fully portable between the two locations.

Alternatives:

  • If racks can be made portable without raising the racks more than 3.5cm the electrical conduit and grounding bar need not be removed.
  • This lowered portable support must be non-conducting such that the racks will be electrically floating.

Timetable:

  • Planning finished Nov. 21, 2008
  • Assemble parts and designate manpower Nov.24, 2008 to Dec. 24, 2008
  • Move racks over to ISAC-II Jan. 5, 2009 to Jan. 9, 2009

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