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Preparation for Cool-Down Sec78 - Thu Nov, 23rd

RAT_20061123.pdf:
https://twiki.cern.ch/twiki/pub/HCC/BlogEntryPoint8x2006x11x23x14x53/RAT_20061123.pdf

Comments:

• • AC non-conformity
• 21.11.06 Transport and installation of the heater system of the current leads for RR77 and UA83
• 21.11.06 Non-conformity on instrumentation cables (temperature sensors on current leads)
• 13.11.06 Non-conformity of the crates of cryo instrumentation (inrush current)
• 13.11.06 Non-conformity of the AC cabling of the crates under the magnets. This concerns ACR, MEL, orbit corrector power converters & VAC.

• • DC cabling
• 23.11.06 Cable temporary positioning on the transport side of the tunnel
• 23.11.06 Adjustment of cable length on DFBAO
• 22.11.06 Missing labels on DFBAO instrumentation cables
• 22.11.06 Pre-connection of 120A cables in LSSR7
• 20.11.06 Galvanic insulation installation of 600 A cables to the DFBAO
• 13.11.06 Non-conformity of the DC cabling of the orbit corrector power converters
• 13.11.06 6 kA and 13 kA cables positioning at DFBAO, DFBMA and DFBMC
  • Assembly: -

• • Vacuum: -

• • Cryogenics
• 22.11.06 Cryo-valves remote control in CCC by AB/CO
• 22.11.06 Control of quench valve
• 20.11.06 DFB instrumentation cables to be connected
• 17.11.06 Instrumentation cable HV tests in LSS8L

• • DFB Commissioning
• 13.11.06 ElQA-TP4-A in the DFBAO, DFBAN, DFBAX
• 17.11.06 Pumping of insulation vacuum DFBAN, DFBAO, DFBMC, DFBMA, DFBXG

• • Safety: -

• • General remark: written communication in advance to announce operations!!!
• 23.11.06 Wooden structure for UA access restriction (that will allow transport).
• 23.11.06 Preparation of a prototype plastic protection or the monorail (protection derived from a plastic tube) by J.C.Guillaume and approval by J.Etheridge.
• 23.11.06 Water leak on the tunnel concrete wall to be fixed (33L8).
• 23.11.06 Planning of consignations/deconsignations
• 16.11.06 Cool down safety procedure & access conditions

• • Preparation of powering test
• 22.11.06 Pretest of 60A converters in sector 78, location C16L8.
• 22.11.06 Installation of flexible cables by CV (UA83)
• 16.11.06 Water circulating in UA83 for the Powering Procedure Test: filters need to be checked.

• • AOB
• 13.11.06 BPM connection in Q2, Q3, Q4, Q5, Q6, Q7
• 13.11.06 Quench protection continuity tests and cables assignment LLS7R (DFBMH, DFBAN) and LSS8L (DFBMC, DFBMA and DFBX)

-- Main.MircoCoccoli - 23 Nov 2006 - 14:55