High frequency recommended vocabulary
China was an early and active participant in the standardisation of low frequency conducted disturbances, and this part of the Chinese EMC test series, covering the band from zero to one hundred and fifty kilohertz, addresses conditions that are particularly significant in the Chinese power system: the very long transmission distances, the heavy direct current links and the electrified railway network all cause currents to flow through the earth system over wide areas, and the resulting voltages appear on the ports of equipment connected anywhere near those installations. The requirement is applied through the Chinese specifications for power system protection and control equipment, for railway signalling and for metering installations, where the acceptance criterion is generally expressed as a limit on the measurement error under a continuously applied disturbance rather than as a functional class. The page identifies the Chinese designation under which this test appears in domestic project specifications.
The CN 416M4N-100 Coupling Network complies with IEC 61000-4-16, GB/T 17626.16 and other domestic and international standards.
The CN 416M5-100 Coupling Network complies with IEC 61000-4-16, GB/T 17626.16 and other domestic and international standards.
The CN 416M4N-32 Coupling Network complies with IEC 61000-4-16, GB/T 17626.16 and other domestic and international standards.
The CN 416M5-32 Coupling Network complies with IEC 61000-4-16, GB/T 17626.16 and other domestic and international standards.
The CN 416M4N-32(690V) Coupling Network complies with IEC 61000-4-16, GB/T 17626.16 and other domestic and international standards.
The CN 416M2/M3-32 Coupling Network complies with IEC 61000-4-16, GB/T 17626.16 and other domestic and international standards.
The CDN 416T4 (300 V) coupling/decoupling network complies with IEC 61000-4-16, GB/T 17626.16 and other domestic and international standards.
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