temperature. This enables ignition caused by
overheated equipment surfaces to be preven-
ted.
Potentially explosive areas for flammable
gases, vapours and fumes are divided into
zones 0, 1 and 2.
Division of potentially explosive areas for gases, vapours and fumes
Zone Description
0 Permanent, long-term or frequent dangerous explosive atmosphere
1 Occasional dangerous explosive atmosphere
2 Infrequent dangerous explosive atmosphere
Potentially explosive areas for flammable
dusts are divided into zones 20, 21 and 22.
Division of potentially explosive areas for dusts
Zone Description
20
Permanent, long-term or frequent dangerous explosive atmosphere in the
form of a flammable dust cloud
21
Occasional dangerous explosive atmosphere in the form of a flammable dust
cloud
22
Infrequent dangerous explosive atmosphere in the form of a flammable dust
cloud
Equipment is divided into groups I, II and III.
Division of equipment
Group Description
I Mining equipment (subterranean) endangered by exposure to pit gas/dust
II
Equipment in all other areas with gas explosion protection and dust explo-
sion protection outside of mining
III Equipment in all other areas with dust explosion protection outside of mining
The following table refers only to equipment in
group II, which includes the explosion-protec-
ted truck. Truck requirements depend on the
zone in which it is intended to be operated.
Equipment in group II
Zone Category Description
0
20
II 1G
II 1D
Permanent, long-term or frequent dangerous explosive
atmosphere in the form of a flammable dust cloud
1
21
II 2G
II 2D
Occasional dangerous explosive atmosphere in the form
of a flammable dust cloud
2
22
II 3G
II 3D
Infrequent dangerous explosive atmosphere in the form
of a flammable dust cloud
Foreword
1
Using the truck
2156368011531 EN - 01/2021 - 05
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