Integration of clic tbm in clex electronics allocation and cables tracing
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Integration of CLIC TBM in CLEX Electronics allocation and cables tracing. Wilfrid Farabolini  (CEA/IRFU) 16 October 2013. Cables and racks request. Collected by Alexander Summarized by Dmitry. Cables separation due to EMC constraints. 14640 mm 2. 6 racks + 1 spare.

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Integration of CLIC TBM in CLEX Electronics allocation and cables tracing

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Integration of clic tbm in clex electronics allocation and cables tracing

Integration of CLIC TBM in CLEX Electronics allocation and cables tracing

Wilfrid Farabolini (CEA/IRFU)

16 October 2013


Cables and racks request

Cables and racks request

Collected by Alexander Summarized by Dmitry

Cables separation due to EMC constraints

14640 mm2

6 racks + 1 spare

5 holes + 1 spare


1 st idea additional drills on the ceiling

1st idea: additional drills on the ceiling

CALIFES

TBL

CLIC Module

Pros: - Minimum changes to the building

Cons:- Delicate drilling (present cable tray and TBL line to be removed, dust inside)

- Cables length > 20 m if to follow present cable trays

- Problem to install new racks in the gallery

- Staff in the gallery during operations


Shortest path from module to gallery

Shortest path from Module to Gallery

Drill only on same rows as the present pits

- building structure to be preserved

– drilling the ceiling is problematic (GS/SE)


Problem to install the drilling machine

Problem to install the drilling machine

Cable tray to be removed

Protection from dust and water to be installed

TBL equipments to be removed


Even more problems for cable path

Even more problems for cable path

Cable trenches are full on this side

Nothing authorized below air ducts level (transport vehicles)

Any other path is very long (40 m for last installed RF cables)


Lack of space in the above gallery

Lack of space in the above gallery

Pits positions

2.5 crates available in the vacuum alley (to be negotiated)

3 crates available in the signals acquisition alley (after some rearrangement)


2 nd solution drill the wall towards ctf2

2ndsolution: drill the wall towards CTF2

CALIFES

TBL

CLIC Module

Pros: Simple drilling (Clear area, enough space for dust confinement)

Possibility to install racks where are the disused 30 GHz racks

Operations from a safer gallery (but still close to the X-Box1)

Cons:Long cable length (>> 20 m, inside CLEX electronics required)

Radioprotection of the CTF2 area to be investigated


Cables path towards ctf2

Cables path towards CTF2

Possible drills

More clearance but iron wall to be moved

Possibility to add a cable tray under the ceiling but long path to reach the module (13 m to the wall)

Only 3 crates available in the gallery above CTF2 if disused 30 GHz electronics is removed


Best choice dedicated shelter on the car park

Best choice: dedicated shelter on the car park

CALIFES

Shelter3 x 5 m

TBL

CLIC Module

Pros: Easiest drilling solution (from outside, minimum dust, clear area inside)

Shortest possible cables length (< 20 m)

Sufficient place to host the new racks

Safe and comfortable operations inside the shelter (outside of the controlled area)

Cons:New construction (Algeco 1 kCHF/m2) with all services (air conditioning ?)

Radioprotection of the car park to be investigated by RP


From module to car park wall

From Module to car park wall

Alternatively use of the ventilation window chicane instead of drilling new holes (to be investigated)

- 0.400 x 0.180 m fully available trench

- 3.8 m to the wall (2.8 m thick)

- Easy drilling of 6 holes (diam. 160 mm) with slope for RP

- Still 2 m of trench to be cut to reach the wall


A shelter on car park side

A shelter on car park side

Example of a present shelter (high voltage electronics for TL2 tail clipper)

5 x 3 m available

Ventilation window


Possible shelter arrangements

Possible shelter arrangements

Dmitry Gudkov

4 x 3 m shelter


Conclusion

Conclusion

  • The shelter on car park solution allows:

  • Minimal cable length and easy cables pulling (also a cost issue for “good” RF cables)

  • Easy crates installation and safe operations (outside controlled area)

  • Easy drilling of the holes (less building structure concern, drill from outside)

  • Alternatively possible use of the ventilation window (under investigation by Y. Body – EN-CV)

  • Possibility to displace some electronics cabinet inside for Rad-Hard tests

  • Requires cable trench extension (feasibility checked with (GS/SE) )

  • RP to give the green light (G. Dumont contacted)

  • Decision to be taken by March 2014


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