Det kommer att ljuda i larmdon / klockor / sirener etc under denna tid. Likaså kommer styrningar att aktiveras (som tex branddörrar som stängs, ventilation som stängs, hissar som påverkas).
Mvh styrelsen
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This means that various alarm devices / sirens etc will sound during this time. Additionally, various countermeasures will be activated (such as closure of fire protection doors, closure of ventilation, impact on the elevator service).
Kind regards, the board