Installation Manual: PSS 3056 Series
3-7
Testing the EMC-compatibility of an installation
Use the following list to check that the safety system has been installed to
conform with EMC-regulations.
Check Action Done
Before installation:
Are there areas with a high Make detailed plans for EMC
probability of interference? protection in these areas.
(e.g. computers running,
process control areas,
distribution cabinets, cable
casing, frequency converters,
hand-held radios etc.)
Are areas where computers If necessary shield the whole
are running and areas such area.
as process control rooms
sufficiently shielded from
electromagnetic coupling?
Have you, or the installer, Some important points: Lay
sufficient knowledge where cables close to earth, keep clear
cable layout is concerned? of other electrical equipment,
keep cables in ducts separate
from other parts of the
installation, keep cables as short
as possible.
Is the supply voltage free Build in a mains filter where
of interference? interference may occur.
EMC characteristics of Test under operating conditions,
individual units / all e.g. while hand-held radios are in
units once installed? use, or HF frequency generators
are close by. Test static discharge
with operating personnel, test
mutual interference between
units under different operating
conditions.
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