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Services Update

Services Update. Progress on services Detector cabling Gas systems Cooling systems Rack footprint Primary electrical distribution Utilities Principle Priorities For Q4 2003. Services on RB26 side Must be installed this year, in order to close the doors Complex routing & limited space

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Services Update

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  1. Services Update • Progress on services • Detector cabling • Gas systems • Cooling systems • Rack footprint • Primary electrical distribution • Utilities • Principle Priorities • For Q4 2003

  2. Services on RB26 side Must be installed this year, in order to close the doors Complex routing & limited space Temporary supports will be required inside the L3 magnet Progress On Services Layout at time of last ALICE week Some gas & cooling pipes Basic Bus Bar layout Some cables

  3. Inventory well advanced Over 1600 cables to be installed on RB26 side Detector Cabling (1) Rack allocation Cable type CERN standard or special Typical inventory for TPC

  4. Detector Cabling (2)

  5. High voltage and signal cables Will be installed using the existing EST/LEA industrial support contract Under the direct supervision of the ALICE team Cables will be installed and cut to approximate length Cables will be cut to the exact length and connectors will be added, when the detectors have been put in place Fiber optic cables ALICE team will install the ducts The specialist team from ST/EL will blow the fibers at a later date Detector Cabling (3)

  6. Gas Systems Status 1st. September 2003

  7. Cooling Systems Status 1st. September 2003

  8. Layout of Services (1) Start off with a clean sheet

  9. Layout of Services (2) Fiber optic cables Bus Bars Cooling & Gas pipes ITS services Gas, Cooling & Bus Bars on back frame

  10. Layout of Services (3) Cooling & Gas pipes Through doors Bus Bars

  11. Layout of Services (4) Access passage around Back frame

  12. Detector Cabling (5) Installation schedule for cables on RB26 side Between September & December 2003

  13. Standard 52U high racks UX25 cavern 133 racks have been identified Racks allocated to sub-detectors Numbering follows CERN ST/EL standard Grouped into 4 areas (see following slide) PX24 counting rooms Existing racks will be used Allocated as required Rack Footprint (1)

  14. Rack Footprint (2) Inside machine Outside machine Big block house Small block house

  15. Crate allocation (UX25) Well advanced ~60 out of 132 racks have detailed crate layout Rack Footprint (3)

  16. Primary Electrical Distribution • Now well understood • Power for counting rooms supplied from surface transformer • Power to Experimental Area • One transformer will supply power to racks • A separate transformer will supply power to equipment with pumps etc.

  17. Primary Electrical Distribution 2MVA Transformer 1,25MVA Transformer EXD1/2X EBD1/2X EBD5/2X EBD3/2X S.G. SX2 et PX24 Eclairage,clim PX24 Niv.1 Niv.2 1,25MVA 1,25MVA 1,25MVA Niv.3 EXD1/25 EBD1/25 EQD1/25 Niv.4 EXD-/20 EBD1/20 BOUCHON 700KVA Rech. Cryo Free EBD3/25 EBD2/29 Alim S.G. UX25 Pont roulant Force 125A-63A,…. ST-CV EBD4/25 Alim S.G. UX25 Eclairage,petite force Auxiliaires,……. EBD3/29

  18. TPC Lasers New shielding layout gives better access to TPC lasers

  19. Vo Cable Length Cable length 25m

  20. Mixed water supply Rack filling factor of 100% Cooling efficiency 90% Number of racks reduced From 140 to 133 Cavern ventilation 4% reduction Utilities

  21. Side structures For racks To allow Bus Bar & cable installation Services through RB26 doors Bus Bars Cables Gas pipes Cooling pipes Priorities For Last Quarter of 2003 To counting room (P4) Detector Cable installation Modified side structures (UX25) Rack positions

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