Identify the distribution system – ERICO TSG Series Surge Reduction Filters (TSG-RSF) User Manual
Page 11
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11
Identify the Distribution System
Figure 7. IT system: A system having no direct connection between live parts and earth, but having all
exposed conductive parts of the installation connected to independent earthed electrodes. CRITEC Surge
Reduction Filters should NOT be used in IT systems without advice from a specialist.
Figure 8. Delta connected three-phase systems.
Although delta connected systems are “IT”
systems, special mention is made due to their
frequent use in mining and industrial applications.
Standard CRITEC
®
Surge Reduction filters may not
be suitable for some applications.
The diagrams are provided as a guide to
identifying and distinguishing the distribution
system in use. Metering, over-current protec-
tion, and other details have not been shown.
As electrical wiring and safety regulations
differ from country to country, it is important
to ensure that the installation complies with
all regulations applicable to the location.
Please seek further assistance if uncertain.
E535IS06ENAS 10/6/06 11:12 AM Page 11
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