The annual tests of the 18 kV commutation system (autotransfert) require electrical power cuts on the normal and machine network of the Meyrin site on Saturday 27 January 2018 and Sunday 28 January 2018 from 6:00 am to 22:00 pm.
Frequent power cuts will occur on the Meyrin site. The EN-EL group recommends that you turn off all your critical equipment and computer equipment.
For any further information please refer to the "note de coupure" https://edms.cern.ch/ui/file/1891310/2/ENNC_EL_2018_004_V2_AUTOTRANSFERT_MEYRIN_PLAN.pdf and the map below of the Meyrin site showing buildings affected by these power cuts.