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Operation
8.1
Safety information for explosion-protected
machines in operation
WARNING
Explosion hazard
These explosion-protected machines are not suitable for hybrid explosive
environments.
This can result in death, serious injury or material damage.
Use in atmospheres where there is a risk of explosion caused by both gas and dust
simultaneously is absolutely prohibited.
Only install machines with type of protection increased safety "e", and machines for
Zone 2 in hazardous areas, according to the regulations laid down by the responsible
regulatory body. They are responsible for determining the hazard level of each area
(division into zones). Layers of dust on machines for Zone 21 and Zone 22 must –
under no circumstances – be higher than 5 mm!
● If there are no other specifications in the EC or EU-type examination certificate or
on the rating plate regarding operating mode and tolerance, electrical machines
are designed for continuous duty and normal starting procedures that are
performed infrequently and do not result in excessive temperature rise. Only use
these machines for the operating mode specified on the rating plate.
● Measures for maintaining the temperature class:
For machines equipped with their own fan and S1 line supply operation, a
function-tested, current-dependent protective device that monitors all three phase
conductors provides sufficient protection for the machine. This protective device
is set to the rated current and must switch off machines with 1.2x the rated
current within 2 hours or less. Do not switchoff for 1.05-fold or smaller rated
current. Pole-changing machines require a separate switch for each pole number;
further, temperature monitoring using PTC thermistors is required. If an anti-
condensation heating system is available, it may only be switched on when the
machines are not in operation.
128
Explosion-protected machines
56100000002002, 01/2016
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