As per IEC standards, the classified areas are categorized in three groups: Zone 0, Zone 1 and Zone 2.
Zone 2 is a location in which explosive gas atmospheres are not likely to occur in normal operation and, if they do occur, they will exist for a short time only. Zone 2 includes the area adjacent to a Zone 1 location, from which explosive gas atmospheres could be communicated.
24 авг 2024