Compliance 14-3
AC10 Inverter
Definitions
Category C1
PDS (Power Drive System) of rated voltage less than 1000V, intended for use in the first environment
Category C2
PDS (Power Drive System) of rated voltage less than 1000V, which is neither a plug in device nor a
movable device and, when used in the first environment, is intended to be installed and commissioned
only by a professional.
Note: A professional is a person or an organisation having necessary skills in installing and/or commissioning power drive
systems, including their EMC aspects.
Category C3
PDS (Power Drive System) of rated voltage less than 1000V, intended for use in the second
environment and not intended for use in the first environment.
Category C4
PDS (Power Drive System) of rated voltage equal to or above 1000V, or rated current equal to or
above 400A, or intended for use in complex systems in the second environment.
First Environment
Environment that include domestic premises, it also includes establishments directly connected
without transformers to a low-voltage power supply network which supplies buildings used for
domestic purposes.
Note: Houses, apartments, commercial premises or offices in a residential building are examples of first
environment locations.
Second Environment
Environment that includes all establishments other than those directly connected to a low-voltage
power supply network which supplies buildings used for domestic purposes.
Note: Industrial areas, technical areas of any building fed from a dedicated transformer are examples of second
environment locations.
14.3 EMC Standards Comparison
The standards are concerned with two types of emission
Radiated Those in the band 30MHZ – 1000MHz which radiate into the environment
Conducted Those in the band 150kHz – 30MHz which are injected into the supply.
14.3.1 Radiated
The standards have common roots (CISPR 11 & CISPR14) so there is some commonality in the test
levels applied in different environments.
Relationship Between Standards
These limits have no relationships with
the generic standards.
*Adjusted for 10m