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especially in an explosive atmosphere can ignite surrounding dust or combustible gases.
Explosions can occur. There is also a risk of an electric shock. Death, serious injury, or material
damage will result.
● Do not open the bridging of the bearing insulation during operation.
8.2
Operation in hazardous areas of Zone 2
Safe handling
In addition to the danger notices in the previous section, the following also applies:
Electrical systems in hazardous zones must be mounted, installed, and operated in
accordance with the applicable rules and regulations. It is assumed that companies operating
these plants and systems take the appropriate measures to ensure that these regulations and
directives are observed during mounting, installation and operation, and that the appropriate
tests are carried out. We recommend that these tests be carried out and documented in
coordination with the responsible authorities.
System-specific ignition hazards
The criteria for the respective zonal classification are not harmonized and the assessment of
the operational risks, the local operating conditions and the various monitoring methods are not
standard. As a consequence, the remedial measures recommended by the supervisory
authorities may also differ depending on the authority's area of responsibility. The machine
manufacturer cannot provide general recommendations in this regard.
Note
Binding clarification of the local risks and of any required measures can only be provided by the
company operating the plant or system in agreement with the supervisory authority
responsible. The risk assessments from IEC / EN 60079-15 or -7 can be used to assess system-
specific ignition hazards.
SIMOTICS FD 1MM1
Operating Instructions 02/2019
8.2 Operation in hazardous areas of Zone 2
Operation
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