Shielding; Atex - Special Conditions (Standard Temperature Range) - Beckhoff EL3632 Documentation

Terminal housing
Wire size width (single core wires)
Wire size width (fine-wire conductors)
Wire size width (conductors with a wire end sleeve)
Wire size width (ultrasonically "bonded" conductors) only 1.5 mm
Wire stripping length
4.5.3

Shielding

Shielding
Encoder, analog sensors and actors should always be connected with shielded, twisted paired
wires.
4.6 ATEX - Special conditions (standard temperature
range)
Observe the special conditions for the intended use of Beckhoff fieldbus components with
standard temperature range in potentially explosive areas (directive 94/9/EU)!
• The certified components are to be installed in a suitable housing that guarantees a protection class of at
least IP54 in accordance with EN 60529! The environmental conditions during use are thereby to be
taken into account!
• 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 tempera-
ture data correspond to the actual measured temperature values!
• Observe the permissible ambient temperature range of 0 to 55°C for the use of Beckhoff fieldbus compo-
nents standard temperature range 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 individual terminals may only be unplugged or removed from the Bus Terminal system if the supply
voltage has been switched off or if a non-explosive atmosphere is ensured!
• The connections of the certified components may only be connected or disconnected if the supply volt-
age has been switched off or if a non-explosive atmosphere is ensured!
• The fuses of the KL92xx/EL92xx power feed terminals may only be exchanged if the supply voltage has
been switched off or if a non-explosive atmosphere is ensured!
• Address selectors and ID switches may only be adjusted if the supply voltage has been switched off or if
a non-explosive atmosphere is ensured!
Standards
The fundamental health and safety requirements are fulfilled by compliance with the following standards:
• EN 60079-0:2012+A11:2013
• EN 60079-15:2010
Marking
The Beckhoff fieldbus components with standard temperature range certified for potentially explosive areas
bear one of the following markings:
EL3632
High Density Housing
0.08 ... 1.5 mm
0.25 ... 1.5 mm
0.14 ... 0.75 mm
2
8 ... 9 mm
WARNING
Version: 2.8
Mounting and wiring
2
2
2
39