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Preparation cool-down of Sector 78, 20 Nov

PDF Sector_78_Preparation_of_Cool_Down_w47.pdf:
https://twiki.cern.ch/twiki/pub/HCC/BlogEntryPoint8x2006x11x20x19x42/Sector_78_Preparation_of_Cool_Down_w47.pdf

PDF RAT_20061120.pdf:
https://twiki.cern.ch/twiki/pub/HCC/BlogEntryPoint8x2006x11x20x19x42/RAT_20061120.pdf

Mpp Sector_78_Preparation_of_Cool_Down_w47.mpp:
https://twiki.cern.ch/twiki/pub/HCC/BlogEntryPoint8x2006x11x20x19x42/Sector_78_Preparation_of_Cool_Down_w47.mpp

Comments:

AC non-conformity

  • 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 converetrs & VAC.
  • 13.11.06 Non-conformity of the DC cabling of the orbit corrector power converters
DC cabling
  • 13.11.06 6 kA and 13 kA cables positioning at DFBAO, DFBMA and DFBMC
  • 13.11.06 120 A cable connections in DFBAO, DFBMC, DFBMA and DFBX LSS8L
  • 17.11.06 600 A cable positioning on DFBA
  • 20.11.06 Connections (made by TS/MME) of 120 A cables to be verified (TS/EL)
  • 20.11.06 Connections of 600 A cables to the DFBAO to be verified
  • 20.11.06 Flohe on DFBAO or DFBAM? To be decided

Assembly - Vacuum

  • 20.11.06 21 leak detectors to be placed all along the arc 78
  • 17.11.06 Bellows damaged in Q6-Q7 LSS8L
Cryogenics
  • 20.11.06 DFB instrumentation cables to be connected
  • 20.11.06 leaks on DFBAO in reparation
  • 17.11.06 Instrumentation cable HV tests in LSS8L
  • 17.11.06 Pressurized air supply to valve on WRL
  • 13.11.06 Support on DFBAO WRL
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 will start next week in 7R
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)
  • 17.11.06 Monorail in Point 8 locked off on Monday (20.11) starting from 10.30!!!
Preparation of powering test
  • 16.11.06 Water circulating in UA83 for the Powering Procedure Test: filters need to be cleaned!
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.bellesia - 20 Nov 2006 - 19:53

Topic attachments
I Attachment History Action Size DateSorted ascending Who Comment
PDFpdf RAT_20061120.pdf r1 manage 48.3 K 2006-11-20 - 19:50 UnknownUser  
Unknown file formatmpp Sector_78_Preparation_of_Cool_Down_w47.mpp r1 manage 323.0 K 2006-11-20 - 19:52 UnknownUser  
PDFpdf Sector_78_Preparation_of_Cool_Down_w47.pdf r1 manage 58.1 K 2006-11-20 - 19:51 UnknownUser  

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Topic revision: r2 - 2006-12-08 - MircoCoccoli