CERN safety network, the annual diesel generators tests of the Meyrin site, SPS, Prévessin, North Area, LHC1 to LHC8 and LHC1.8, are planned on Thursday 30 July 2020 from 6:00 am to 6:30 am.
Electrical power cut of the networks Normal, General Services, Stable (18 kV, 3.3 kV, 230 V, 400 V) on the Meyrin site, SPS, Prévessin, North Area, LHC1 to LHC8 and LHC 1.8. The EN-EL Group recommends that you turn off your critical equipment and computer equipment.
For any further information, please refer to the "note de coupure": https://impact.cern.ch/impact/secure/ pdf Template/ndc/EN-EL-NdC-156479-3.