TWiki home Point 1 Point 2 Point 3 Point 4 Point 5 Point 6 Point 7 Point 8 Minutes

Back to overview

YOU ARE VIEWING BlogEntryPoint8x2006x11x24x20x25

Preparation Cool-Down Sector 78-RAT 24th Nov

PDF RAT_20061124.pdf:
https://twiki.cern.ch/twiki/pub/HCC/BlogEntryPoint8x2006x11x24x20x25/RAT_20061124.pdf

Comments: Open Issues:

  • AC non-conformity
    • 21.11.06 Transport and installation of the heater system of the current leads for RR77 and UA83 (P.Chambouvet: about 2 weeks of work starting Mon 27 Nov)
    • 21.11.06 Non-conformity on instrumentation cables (temperature sensors on current leads) (A.Suraci: 4 cables are in repair)
    • 13.11.06 Non-conformity of the crates of cryo instrumentation (inrush current) (A.Suraci: ready next year)
    • 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 (A.Vergara: next year)
    • 22.11.06 Pre-connection of 120A cables in LSSR7
    • 20.11.06 Galvanic insulation installation on all DFBs
    • 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 (D.Bozzini: 80% done)
    • 17.11.06 Instrumentation cable HV tests in LSS8L (A.Suraci: 4 cables to be tested)
  • DFB Commissioning
    • 13.11.06 ElQA-TP4-A for all DFBs between 7 and 8 (D.Bozzini: ongoing according to schedule; next week will begin ElQA-TP4-B, i.e. HV tests)
    • 17.11.06 Pumping of insulation vacuum for all DFBs between 7 and 8 (P.Chambouvet: DFBAN done)
  • 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 insulating protection (derived from a plastic tube) of the monorail 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. (B.Bellesia: stopped due to LQA hardware problems; expected end by Tuesday 28 Nov)
    • 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.BlancaPereaSolano - 24 Nov 2006 - 20:29

Topic attachments
I Attachment History Action Size Date Who Comment
PDFpdf RAT_20061124.pdf r1 manage 50.4 K 2006-11-24 - 20:30 BlancaPereaSolano  
Edit | Attach | Watch | Print version | History: r3 < r2 < r1 | Backlinks | Raw View | WYSIWYG | More topic actions
Topic revision: r3 - 2006-12-08 - MircoCoccoli
 
    • Cern Search Icon Cern Search
    • TWiki Search Icon TWiki Search
    • Google Search Icon Google Search

    HCC All webs login