Lighting

GAS ZONE

Zone 0 - 1G - EXPLOSIVE ATMOSPHERE IS PRESENT continuously or for extended periods during normal operation.

Zone 1 - 2G or 1G - EXPLOSIVE ATMOSPHERE IS PRESENT occasionally during normal operation.

Zone 2 - 3G or 2G or 1G - EXPLOSIVE ATMOSPHERE IS PRESENT accidentally, in case of malfunction, or for a short duration.

DUST ZONE

Zone 20 - EXPLOSIVE ATMOSPHERE IS PRESENT continuously or for extended periods during normal operation.

Zone 21 - EXPLOSIVE ATMOSPHERE IS PRESENT occasionally during normal operation.

Zone 22 - EXPLOSIVE ATMOSPHERE IS PRESENT accidentally, in case of malfunction, or for a short duration.