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Description / Abstract:
The scope of this standard is to develop a standard method of
measurement for evaluating the electromagnetic and radio frequency
suppression capability of power-line filters in the frequency range
of 100 Hz to 10 GHz. This will apply to electromagnetic
interference/radio-frequency interference (EMI/RFI) filters in
general, i.e., dc, single-phase or polyphase systems rated for 600
V and below 1000 A. The method of measurement will describe general
considerations, such as the method of standardizing source
impedance for nonlinear loads, temperature rise, attenuation
measurement, components, and or derating requirements when
supplying nonsinusoidal load currents and operating in matched- or
mismatched-impedance environments.
Purpose
The purpose of this standard is to provide measurements that
evaluate the performance of power-line interference filters in
practical installations involving varying load and source
impedances. These factors are not usually considered in design and
performance verification testing of EMI/RFI filters. Both
manufacturers and end users should benefit from this standard that
defines the ranges and environment, expected effects, and test
methods to verify filter attributes.