1. 1 ABTEF - 16/05/2014 Maintenance of safety-critical systems : LBDS - MKD / MKB on LHC

2. 2 MKD & MKB generators in the tunnel (Point #6)  Aim of LS1 for LBDS – MKD/MKB: refurbishment of all the MKD & MKB generators (in operation + spare) 35 MKD  30 in the tunnel + 5 spare 10 MKB H  8 in the tunnel + 2 spare 14 MKB V  12 in the tunnel + 4 spare  FPS actions performed during LS1: Disassembled all the MKD & MKB generators in the lab (867) Checked and cleaned all the mechanical parts Checked, cleaned and measured all the electrical and electronic components of MKD & MKB (caps, diodes, GTO,…) HV test after generators refurbishment (tunnel) Stored and managed all the components information & measurements (lab / tunnel) in specific databases Managed the spare parts ABTEF - 16/05/2014

3. 3 MKD & MKB databases  Aim of these Databases 1.Individual components: Information : store and manage all the information like #SN, trade mark, model, reference of 5200 electrical components (GTO, caps, diodes…). FYI  MKD & MKB in the tunnel + spare = 42 ABB Stacks - 420 GTO + 28 Westcode stacks - 280 GTO + 20 Dynex stacks – 200 GTO  900 GTO to manage. Measurements: store and manage 17.000 electrical measurements (R, C, V, I,…) performed in the lab (867). 2.Generators: HV tests results: store and analyse 3.500 electrical measurements performed in the tunnel (point 6). ABTEF - 16/05/2014

4. 4  Databases in DFS:  G:\Departments\TE\Groups\ABT\Sections\FPS\Systems \LHC\MKD_MKB & spare parts ABTEF - 16/05/2014  Aim of these Databases 3.Documents: Procedures, drawings, MKD/MKB tracking files,... 4.MKD / MKB spare parts: Store and manage the MKD & MKB electrical components

5. 5 Organization of the MKD & MKB databases ABTEF - 16/05/2014