Locations in which ignitable concentrations of flammable vapours can exist under normal operating conditions. Class I, Division 2: Locations in which flammable liquids are used, but are normally confined within closed systems from which they can escape only in the event of accidental breakdown.
Clase I, División 2: Sitios en los cuales se usan líquidos inflamables pero éstos están confinados en sistemas cerrados de los cuales solo pueden escapar en caso de ruptura accidental.