Table 2 Basic failure statistic
From: Control of large helium cryogenic systems: a case study on CERN LHC
Affected equipment | Nr. events | Dumps | Events type | Critical areas |
|---|---|---|---|---|
Cryogenic plants PLC | 7 | 7 | non-destructive | caverns of P8, P6 & P4 |
Current lead temperature | 17 | 9 | no-destructive | LHC tunnel |
Current lead valves | 19 | 9 | non-destructive | LCH technical galleries |
24VDC Power Supplies | 2 | 0 | destructive | LCH technical galleries |