Foreword 1
Using the truck
Examples of this work are:
• Battery replacement and battery charging
• Maintenance and repair
• Settings and safety checks
• Conversion and retrofitting
• Transportation and loading
Areas with explosive atmospheres are divided
into zones. Equipment is divided into equip-
ment groups and equipment categories. The
equipment category determines the zones in
which the explosion-protected truck may be
used.
Potentially explosive areas are divided into
six zones. The divisions are based on the
probable frequency and duration with which
a dangerous explosive atmosphere can
occur. A distinction is also made between
inflammable gases, fumes, vapours and
dusts.
Gases and vapours are assi
gned to temper-
ature classes on the basi
s of their ignition
temperature. This enabl
es ignition caused
by overheated equipment
surfaces to be pre-
vented.
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
563
68011531 EN - 06/2019 - 02 19
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