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Preparation for Cool-Down of Sector 78, 22 Nov

RAT_20061122.pdf:
https://twiki.cern.ch/twiki/pub/HCC/BlogEntryPoint8x2006x11x22x16x14/RAT_20061122.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

• 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
• 20.11.06 Galvanic insulation installation of 600 A cables to the DFBAO
• 22.11.06 Pre-connection of 120A cables in LSSR7
• 22.11.06 Missing labels on DFBAO instrumentation cables

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

• 17.11.06 Prototype of galvanic insulation to be tested at Point 6
• 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!!!

• 16.11.06 Cool down safety procedure & access conditions
• 16.11.06 Definition of Safety procedure for Powering Procedure Test (aka Dry Runs)

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)