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Minutes

Created by Main.MircoCoccoli on 2006-11-27 - 19:08

Main.MircoCoccoli - 27 Nov 2006 - 19:02

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

25.11.06 Functional test on the leads heaters: DFBMA, DFBMC, DFBX
25.11.06 120A and 600A positioning on DFBAN and DFBMH
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: DFBMA, DFBMC, DFBX); in week 48 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; next: DFBMA, DFBMC, DFBX)

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)

Created by Main.MirkoPojer on 2006-11-27 - 11:34

Comments:

Open issues

23.11 Ripples in RQT12R5B1 power converter.
23.11 Cables inversion on rack RYMCA04.
20.11 Problem with water conductivity in DQS: reason known, insulation test still to be performed.
13.11 DC cables high voltage test (RR57 done. Waiting UJ56)
13.11 Test de circulation ED (waiting UJ56)
22.11 Full power ventilation test in RR57 – Friday 8th Dec. 8:30-12:00
22.11 Fire detection – awaiting certification