1. 1 Cabling from sub-detectors Current thinking 31.03.2004V.Bobillier L. Roy

2. 2 Cabling from sub-detectors Current thinking 31.03.2004V.Bobillier L. Roy Cable trays and/or cable ducts needs: Detectors have to define their needs when metallic cable ducts or other kind of trays than the standard one have to be installed for certain type of cables. The standard (or default) cable trays will be of both kinds: Cablofil Standard Cable tray The possible options are: Plastic cable ducts (for mechanical protection): Metallic cable ducts (for additional shielding effect):

3. 3 Cabling from sub-detectors Current thinking 31.03.2004V.Bobillier L. Roy Packing factor for cable trays installation: Tests have been made to determine the packing factor to be applied and the bending radius problems in the chicane mock-up in the building 157. The most problematic region will be the 90 degrees angle in the chicane. http://lhcb-elec.web.cern.ch/lhcb-elec/Point8Electronics/CableTrays/Chicane/Cable_test.htm

4. 4 Cabling from sub-detectors Current thinking 31.03.2004V.Bobillier L. Roy Packing factor for cable trays installation: TypeDescriptionSCEMUser Diame ter [mm] Total cross section (insulation included) [mm2] Minimum bending radius [mm] Weig ht / cable Test ed Estimated number of cable in a 3dm2 cable tray (from calculation) Tested number of cable in a 3dm2 cable tray (from tests in mock- up) Calculated packing factor from tests Optical fiber ribbon 12 fiber ribbon ? 2.3 * 5.1 12-?no 2500 (with no packing factor) to be tested Power cables 01 installation cable 95mm2 04.08.61.4 06.8 17.2233 ? no 128 (with no packing factor) to be tested Power cables 02 multi wires NF48P 04.21.52.1 75.3 VELO23.5434~310?yes 69 (with no packing factor) 441.57 Signal cables CAT 6 04.21.70.1 04.6 VELO + ECS 629- 28 kg/k m yes 1034 (with no packing factor) 774 (188 occuped 7280mm2) 1.34 Main electrical distribution NUVOA FULGORCAV I 240mm2 3,3kV (super souple) -TS/ EL~32804~250?yes- 24 (4 tested :space for 8x3 in 3dm2) 1.6 Main electrical distribution AEG KABEL RHEYHALON 240mm2 1kV -TS/ EL~28616~400?yes- 21 ( 5 tested :space for 7x3 in 3dm2) 2.4 Main electrical distribution 0,6/1kV FR N1x1G1 R 400mm2 -TS/ EL~32804~580?yes- 12 ( 2 tested: space for 4x3 in 3dm2) 3.2

5. 5 Cabling from sub-detectors Current thinking 31.03.2004V.Bobillier L. Roy New iteration on the shielding wall chicane passage: The packing factor test gave the possibility to make a new iteration on the cable trays implementation in the chicane passage where no spare space is available for additional cables.

6. 6 Cabling from sub-detectors Current thinking 31.03.2004V.Bobillier L. Roy

7. 7 Cabling from sub-detectors Current thinking 31.03.2004V.Bobillier L. Roy D3 / A

8. 8 Cabling from sub-detectors Current thinking 31.03.2004V.Bobillier L. Roy D3 / B

9. 9 Cabling from sub-detectors Current thinking 31.03.2004V.Bobillier L. Roy Next step Some efforts have to be made to progress on the cable tray link between the chicane and the barrack’s false floor as well as in the whole cavern. The chicane D3 false floor ?