Cabinet Design According To Emc Guidelines - GE RSTi-EP User Manual

7.3.6 Cabinet Design According to EMC Guidelines

GFK-2958E RSTi-EP User Manual
Chapter 7 Earthing and Shielding
1 Earthing strips
Earthing strips must be used for
connecting inactive metal parts if
it is not possible to connect two
large pieces of metal. Use short
earthing strips with large
surfaces.
2 Clamping bracket for signal
cables
If shielded signal cables are used,
the shield must be attached to
the clamping bracket (KLBÜ
series) on the busbar over a large
surface. The braided shield must
cover and make good contact
with a large part of the clamping
bracket.
3 Mounting plate
The support beam for holding
control components must be
connected to a large part of the
cabinet housing.
4 Busbar
The busbar must be connected
via the rail holding fixture. The
cable shields are fixed to the
busbar.
5 Protective earth conductor rail
The protective earth conductor
rail must likewise be attached to
a large part of the mounting
plate, and it must be connected
to the protective earth conductor
system via an external cable with
a cross-section of at least 10
mm2, in order to discharge
interference current.
6 Protective earth terminal strip
The protective earth terminal strip
must be connected to the
protective earth conductor rail in
a neutral-point configuration.
7 Cable to protective conductor
system (earthing point)
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