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Proposed Layouts for Signal, LV and HV cables in YB+1

Proposed Layouts for Signal, LV and HV cables in YB+1. Piyush Verma TIFR, India. All the Services of Muons as well as HO on +Z side. Three options shown. In all the options Signal Cables from Sector 6 and Sector 4 go through the megatile covers and exit on sector 2.

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Proposed Layouts for Signal, LV and HV cables in YB+1

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  1. Proposed Layouts for Signal, LV and HV cables in YB+1 Piyush Verma TIFR, India

  2. All the Services of Muons as well as HO on +Z side. • Three options shown. • In all the options • Signal Cables from Sector 6 and Sector 4 go through the megatile covers and exit on sector 2. • Signal Cables from Sector 8 and Sector 10 go through the megatile covers and exit on sector 12.

  3. Full View of YB+1 from +Z side.

  4. Option1

  5. Option1 • Signal Cables go under MAB between sector 1 and sector 12 for lower half and under MAB between sector 2 and sector 3 for upper half. • Cross section required for signal cables under each MAB = 27mm x 27mm. • HV cables go along the Copper tubes along radial support for each sector having RBX. • HV cable cross section = 12 dia. • 2 LV cables and Slow control cable routed on the face of sector having RBX. • 2 LV + 1 Slow control c/s = 20 dia. + 2 mm tolerance => 22 mm. • No extra length looped and kept on frame considered. LV +slow control to have disconnect box.

  6. Option1 (remarks) • Signal Cables : • Space under MAB only 21 mm under present scenario. • Also signal cables have to pass over Yoke cooling pipe under the MAB. • May be possible if we spread out the signal cables. • HV Cables: • As these run along copper tubes, there are some tight points. • HV cables require minimum of 150 mm bending radius. Routing along copper tubes is having a lot of Zig-Zag. Achieving the min. bend radius may be difficult. • Is routing of HV line along with Copper tubing advisable? • LV Cables : • Extra cost for disconnect box.

  7. Option2

  8. Option2 • Signal Cables go on the face of sector 12 for lower half and on sector 2 for upper half (same as YB+2). Extra length of ~2 M looped and kept on structure outside Yoke iron. • Cross section required for signal cables = 27mm x 27mm. • 2 LV cables and Slow control cable routed on the face of sector having RBX. • 2 LV + 1 Slow control c/s = 20 dia. + 2 mm tolerance => 22 mm. • 2M extra length looped and kept on Structure along with Signal Cables. No disconnect box. • Total c/s on face of Sectors 2 and 12 = 49 mm wide x 27 mm high. • HV cables go along the Copper tubes along radial support for each sector having RBX. • HV cable cross section = 12 dia.

  9. Option2 (remarks) • Signal Cables and LV+Slow Control Cables : • No effect of MAB location for routing from sector to patch panel. • Fixing of signal cables less complicated as the go on existing cable trays fixed for muon services. (No extra drilling of holes on Yoke Iron). • No extra cost for disconnect box. • Due to extra length HO System and Muon System will be disconnected for maintenance.

  10. Option3

  11. Option3 • Signal Cables go on the face of sector 12 for lower half and on sector 2 for upper half (same as YB+2). Extra length of ~2 M looped and kept on structure outside Yoke iron. • Cross section required for signal cables = 27mm x 27mm. • 2 LV cables and Slow control cable routed on the face of sector having RBX. • 2 LV + 1 Slow control c/s = 20 dia. + 2 mm tolerance => 22 mm. • HV cables also routed on the face of sector having RBX along with LV Cables and Signal Cables. • HV cable cross section = 12 dia. • 2M extra length looped and kept on Structure along with Signal Cables. No disconnect box. • Total c/s on face of Sectors 2 and 12 = 61 mm wide x 27 mm high. • Total c/s on face of Sectors 4, 6, 8 and 10 = 35 mm wide x 22 mm high.

  12. Option3 (remarks) • Signal Cables, HV and LV+Slow control Cables : • No effect of MAB location for routing from sector to patch panel. • Fixing of signal cables less complicated as the go on existing cable trays fixed for muon services. (No extra drilling of holes on Yoke Iron). • No extra cost for disconnect box. • Fixing of HV cables also becomes very simple. • Due to extra length HO System and Muon System will be disconnected for maintenance.

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