The annual diesel generators tests of the Meyrin site, SPS, Prévessin, North Area, LHC 1 to LHC 8 and LHC 1.8, are planned on Tuesday, 30 November 2021 from 6:00 am to 6:30 am.

Power will be cut in the following networks: Normal, General Services, Stable (18 kV, 3.3 kV, 230 V, 400 V) on the Meyrin site, SPS, Prevessin, 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".