24.09.2003 LHCb EP/LBD V. Bobillier

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Cables and chicane mock up

What we would like to define or test with the mock up:

• if the installation (of both cable trays and cables in the trays) will be possible• cable packing factor in the corners (curves) of the chicane passage• maximum bending radius of the cables we will install• may be define a relation between the bending radius and the packing factor at the critical position• test if the installation of cable ducts (metallic or plastic) in the cable trays is feasible

24.09.2003 LHCb EP/LBD V. Bobillier

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System: Through Pass 84 Through Pass 86

dm2 Power cables Signal cables Optical fibers Power cables Signal cables Optical fibers

VELO 7.49 9.14        

VETO 0.22 0.41 0.11      

Vaccum 0.14 0.47        

Calorimeter       2.05 0.35 1.41

Inner Tracker       2.05 0.65 0.24

Trigger Tracker 2.05 0.1 0.24      

Outer Tracker 4.39 1.04 0.96      

Muon       0.08 0.31 2.65

Magnet 0.07 0.94        

DSS ? ? ? ? ? ?

Rich 1 2.6 0.41 0.63      

Rich 2       3.11 1.01 0.75

TOTAL (without the cable trays) : 31.41 14.66

Total cross section available through the chicanes: 70 70

All numbers are in dm2

Total cross-section:

24.09.2003 LHCb EP/LBD V. Bobillier

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Chicane passage through the shielding wall

Pass 84 Pass 86

24.09.2003 LHCb EP/LBD V. Bobillier

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Cable trayCable ducts

Cable trays

Optical fibersSignal cables

Power cables

24.09.2003 LHCb EP/LBD V. Bobillier

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Type Description SCEMDiameter

[mm]Cross section

[mm2]Minimum bending radius

[mm] Weight

Optical fiber ribbon 12 fiber ribbon ? 2.3 * 5.1 12 13 ?

Power cables 01 installation cable 04.08.61.935.8 15 177 ? ?

Power cables 02 multi wires 04.21.52.145.9 18.5 269 ? ?

Signal cables CAT 6 04.21.70.104.6 6 28 ? ?

HV cables ? ? ? ? ? ?

What cables we would like to test :