BECKHOFF EP-xxxx-xxxx - Manual (Page 9)

Notes about operation in potentially explosive areas
EtherCAT Box Modules in potentially explosive areas 5
2 Notes about operation in potentially explosive
areas
2.1 Special conditions
Observe the special conditions for the intended use of Beckhoff fieldbus
components in potentially explosive areas (directive 94/9/EU)!
WARNING
 The certified components are to be installed in a protection enclosure
according to chapter 3 that guarantees a protection against mechanical
hazards!
 If the temperatures during rated operation are higher than 70 °C at the feed-in
points of cables, lines or pipes, or higher than 80 °C at the wire branching
points, then cables must be selected whose temperature data correspond to
the actual measured temperature values!
 Observe
the permissible ambient temperature range of 0 - 55°C for the use of
EtherCAT Box modules in potentially explosive areas!
 Measures must be taken to protect against the rated operating voltage being
exceeded by more than 40 % due to short-term interference voltages!
 The connections of the certified components may only be connected or
disconnected if the supply voltage has been switched off or if a non-explosive
atmosphere is ensured!
The fundamental health and safety requirements are fulfilled by compliance with the following standards:
 EN 60079-0: 2006
 EN 60079-15: 2005