RE4%20Cable%20

1
RE4 Cable Cooling update

• Skew clear QC
• Signal cable path lengths
• HV connectors
• Cable supplies
• Tower cabling
• Trigger Cabling
• Production Rate
• Installation
• Scheduling
• Commissioning
• Cooling system

2
Skew Clear QC

• Is working but requires work, including software
  ( Flavio) install
• in rack with a new PC etc ,to make robust.
• Test cables waiting in 904.
• Require space in 904 in the corridor outside AC
  labs.
• The signal cable company have been requested to
  make this test but if they do not like the
  installation then we must do this.

3
Signal to Chamber cables
PLASTICAVI 10 samples from 1 drum
864 cables to Manufacture
Skew Limit 1.5ns/15m
TECHNIKABEL
Skew ns
Remaining cables from RE1,2 3 production
retested in July 2011. Technikable seem are
slightly better. Length is sufficient as we have
23km in stock and we need 9493m. But will check
stock of Technikable.
4
Paths, Lengths, Labels DB
3D Model
Integration with CSC Services
Labels
Length spread sheet
5
Refining 3D Model for Signal cable length.
Constrained Spline calculation
Sample cables laid out in P5, 6 on each endcap
Real Cables Laid out in P5
Agreement between real cables and final 3D model
6
Grounding star points
7
Cable attachment to chamber RE4/3

• How much space is available ?
• Do we now have a means to attach the cables ?

8
HV Connector
Cable needs are 2.1km. In stock are 3.1km.
3 pole CPE connector, old design with Stycast
potting
144 Cables plus some flying spares to use through
out the system for repairs and debugging
9
HV Cable and Connectors
Do we continue with this connector or go for the
new development. Cable production was started
for the sites. We should restart with a more
rigorous test (cycling, need script from
Stephano) and filtering of connectors before
assembly(dimples light transmission)
10
The Range of Cables

• Chamber cables
• HV cables from patch panel(YE1) to chamber
• LV cables from Caen 3009 (Racks) to chamber
• DCS cables from Link Board Crate to chamber
• Signal (LVDS) from Chamber to Link Board crate
  (LBB)
• Temperature sensors.
• Inter rack cabling
• LV (48V) cables from Mao(ACDC) to Easy Crate ,
  Caen 3009 (x4)
• Caen bus communication cables(x4) from Mao to
  Easy crate
• USC/UXC cabling
• Branch Controller (LV and Comm.) to YE1 PP and
  YE1PP to Mao.
• HV, USC/UXC connection is there, had been
  installed for RE1/1

All components at CERN
11
Trigger Cables

• Trigger Cables ( Fibres)
• 12 new LBB crates each with 4 LV cables (2.5V
  3.3V) from the Caen 3016. The cable is in the
  ISR.
• The signal fibres from the LBB to the USC are
  already in place, only 50used.
• New Double fibres (80) are needed from each
  tower thru the Mini Cable Chains to YE1 Fibre
  PP.
• TTC fibres on YE3.
• Ethernet cable ring on each yoke.
• The new LBB will not need the add on regulator
• with its associated cabling.
• The Polish expert is Krzysztof

12
HV Connector
Cable needs are 2.1km. In stock are 3.1km.
3 pole CPE connector, old design with Stycast
potting
144 Cables plus some flying spares to use through
out the system for repairs and debugging
13
Signal to Chamber cables
PLASTICAVI 10 samples from 1 drum
864 cables to Manufacture
Skew Limit 1.5ns/15m
TECHNIKABEL
Skew ns
Remaining cables from RE1,2 3 production
retested in July 2011. Technikable seem are
slightly better. Length is sufficient as we have
23km in stock and we need 9493m. But will check
stock of Technikable.
14
LV Cables

• Chamber cabling
• Power pole connectors (15/45 75Amp)
• Molex connectors
• Cable
• Rack Cabling
• 48V LV cable from ACDC to (MAO) to Easy crate
• 3phase cable from rear of rack to ACDC.
• Branch controller (BC) in S4F03 in USC
• 48V service power to UXC YE1 PP (x2)
• 48V service power from YE1 PP to ACDC on YE3
  thru Mini Cable Chains.
• Communication from BC to YE1 PP
• Communication from YE1 PP to ACDC on YE3 thru
  Mini Cable Chains.
• Sergei Lusins schematics

15
Schedule

• Services installation planned for 13 May-11July
  2013.
• Access to non IP side YE3 19Aug for 26 days
• Access to non IP side YE-3 30Sept 1Nov
• Access 2Oct 18Oct on YE3
• Cables to be made by Russian cabling team.
• Gas Cooling to be installed by ZEC.
• We will complete the elements from the bulkheads
  to the chambers.
• Details for cooling, gas and cables to be
  discussed and planned
• in the TC LS1 workshop next week.

16
Questions and Conclusions

• No new cable types so no new CERN approvals
  required.
• Plenty of resources will be needed, gt1000cables.
• The cable space allocated in 904 will be used.
• Signal cables made with previous company near
  Neuchatel.
• QA QC procedures are understood for each cable
  type.
• All cable types are in drum form, require
  connectorising,
• (including procurement of connectors)
• Costing will come from full component list. See
  below.
• Full breakdown of cabling needs is being built
  here
• http//rpc-cms-re4-upscope.web.cern.ch/rpc-cms-
  re4upscope/RPC/Services/CableOverView/
• file name CablesUXCUSCRE4.xlsx
• Cables should be ready for installation March
  2013
• This talk can be seen at
• http//rpc-cms-re4-upscope.web.cern.ch/rpc-cms-
  re4- upscope/RPC/Services/CableOverView/

17
Cooling

• The design is done by Dan from CSC.
• The provision of components to link the chamber
  to the Bulkheads
• is dealt with by Dick Loveless.
• Piping on chambers supplied by India.
• Some questions concerning assembly and QC to
  resolve with Indian colleagues while they are
  here at CERN.

18
Design of manifolds
Manifolds on Yoke perphery
Flexible piping from Manifolds make installation
rather easy.
19
Cooling Conclusions

• The cooling is looking fine.
• Integration done by 904 team.
• Still necessary to do tests on the Super Module
  to come up
• with acceptable leak rates and refine the
  procedure.
• ZEC will install all the pipe work (Gas
  Cooling) on the yoke.
• RPC community must make the connections from
• the manifolds to the chambers.