Compatibility between Hardware Commissioning Installation LHC Hardware Commissioning
Compatibility between Hardware Commissioning & Installation LHC Hardware Commissioning Review – CERN 13 May 2005 K. Foraz TS-IC
Compatibility between Hardware commissioning & installation Content • Individual system tests during installation üShort circuit tests, QRL cold commissioning, vacuum bake out, other… • Interferences between Installation & Hardware commissioning window LHC Hardware Commissioning Review – CERN 13 May 2005 K. Foraz TS-IC
Individual system tests • Short circuit tests in the LSS • QRL cold commissioning • Others: Powering Interlock Controller, 60 A Power converters, quench protection systems, Cryogenic instrumentation, vacuum controls LHC Hardware Commissioning Review – CERN 13 May 2005 K. Foraz TS-IC
Individual system tests : Short Circuit tests 2 QRL Short Circuit Tests Interconnections EL-QA @ warm Cool-down Powering tests ! DFB’s are usually in place before SCT LHC Hardware Commissioning Review – CERN 13 May 2005 K. Foraz TS-IC
Individual system tests : Short Circuit tests in LSS From 7 h to 18 h • Works in the arc: arc no access through RA/LSS(odd points) • Personal access still possible through UA for the arc • Material transport after 18 h Short Circuit Tests LHC Hardware Commissioning Review – CERN 13 May 2005 Other works K. Foraz TS-IC
Individual system tests : Short Circuit tests in LSS No Interferences with magnet transport between 7 h-18 h LHC Hardware Commissioning Review – CERN 13 May 2005 K. Foraz TS-IC
Individual system tests : QRL Cold commissioning • No access during the Cool down to 80 K ~ 2 weeks • After 2 wks: no access restriction (training required, procedure to be defined) Arc 78: Personal access through Pt 7 Work in UA not concerned No placement of magnets during cold tests LHC Hardware Commissioning Review – CERN 13 May 2005 K. Foraz TS-IC
Individual system tests : other • Powering Interlock Controller • 60 A Power converters • Quench protection systems in the arc and LSS • Cryogenic instrumentation: “warm commissioning” • Vacuum controls Individual system tests in parallel with interconnection works: • No interferences with magnet transport • Activities which do not impose access restriction Interconnections work LHC Hardware Commissioning Review – CERN 13 May 2005 K. Foraz TS-IC
Hardware Commissioning: LSS 8 L • Cool down: üNo access during the Cool down to 80 K ~ 2 weeks Arc 78: Personal access through Pt 7 (training required, procedure to be defined) üAfter 2 wks: no access restriction Power tests: üNo access in RA between 7 h-18 h üPersonnel access through UA üTransport possible from 18 h– 7 h LHC Hardware Commissioning Review – CERN 13 May 2005 K. Foraz TS-IC
Hardware commissioning : EL-QA @ warm No access between 7 h-18 h No transport foreseen in this time window LHC Hardware Commissioning Review – CERN 13 May 2005 K. Foraz TS-IC
Hardware commissioning : Cool-down No access during cool-down to 80 K : 2 weeks After no access restriction Magnet transport only for sectors 56, 12, 23 during 4 weeks LHC Hardware Commissioning Review – CERN 13 May 2005 K. Foraz TS-IC
Cool-down & Vacuum bake out and NEG activation possibly done during cool-down No problem from both part LHC Hardware Commissioning Review – CERN 13 May 2005 K. Foraz TS-IC
Hardware commissioning : Powering tests No access No transport foreseen in this time window LHC Hardware Commissioning Review – CERN 13 May 2005 K. Foraz TS-IC
Hardware commissioning & TI 2 Access through point 2, shall be granted for Installation and Hardware Commissioning in TI 2 Open point for 2007 LHC Hardware Commissioning Review – CERN 13 May 2005 K. Foraz TS-IC
Conclusion • Interferences between Installation & HC: • Many constraints, but solutions are available • TI 2 access for installation and HC should be looked @ • But what will we do if shifts occur ? LHC Hardware Commissioning Review – CERN 13 May 2005 K. Foraz TS-IC
Conclusion • But what will we do if shifts occur ? It will be difficult Passage of a convoy : (4 vehicles) ~ 1 h 30 We will avoid crossing interconnect works, so only Short Circuit tests will be perturbed Solutions are being studied to reduce this duration Distance between vehicles, Magnet transport through different sectors, etc… LHC Hardware Commissioning Review – CERN 13 May 2005 K. Foraz TS-IC
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