Explosion-protected machines
56100000002002, 01/2016
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6 Electrical connection
When carrying out any work on the machine, observe the general safety instructions
(Page 77) and the specifications contained in EN 50110-1 regarding safe operation
of electrical equipment.
6.1 Connecting the machine
Death, injury or material damage can occur. Note the following safety
information before connecting-up the machine:
• Only qualified and trained personnel should carry out work on the
machine while it is stationary.
• Disconnect the machine from the power supply and take measures to
prevent it being reconnected. This also applies to auxiliary circuits.
• Check that the machine really is in a no-voltage condition.
• Establish a safe protective conductor connection before starting any
work.
• If the incoming power supply system displays any deviations from the
rated values in terms of voltage, frequency, curve form or symmetry,
such deviations will increase the temperature and influence
electromagnetic compatibility.
• Operating the machine on a line supply system with a non-grounded
neutral point is only permitted over short time intervals that occur
rarely, e.g. the time leading to a fault being eliminated (ground fault of
All cable glands and blanking plugs must be implemented according to Directive
94/9/EC up to April 19, 2016 - or from April 20, 2016, Directive 2014/34/EU. They
must also be certified for use in hazardous zones.
● Any openings that are not being used must be sealed using the appropriate
certified blanking plugs.
● Please observe the manufacturer's specifications when fitting cable glands.
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