Electromagnetic compatibility (EMC) – Part 4-16: Testing and measurement techniques – Test for immunity to conducted@ common mode disturbances in the frequency range 0 Hz to 150 kHz (Edition 2.0)
This part of IEC 61000 relates to the immunity requirements and test methods for electrical and electronic equipment to conducted@ common mode disturbances in the range d.c. to 150 kHz. The object of this standard is to establish a common and reproducible basis for testing electrical and electronic equipment with the application of common mode disturbances to power supply@ control@ signal and communication ports. This standard defines ? test voltage and current waveform; ? range of test levels; ? test equipment; ? test set-up; ? test procedures. For some types of ports@ for example ports intended to be used with highly balanced lines@ additional test provisions may be established by product committee specifications. The test is intended to demonstrate the immunity of electrical and electronic equipment when subjected to conducted@ common mode disturbances such as those originating from power line currents and return leakage currents in the earthing/grounding system. The disturbances produced by 400 Hz mains systems are not included in the scope of this standard. Actual interference due to these disturbance phenomena is relatively rare@ except in industrial plants. Product committees should therefore consider whether there is a justification for applying this standard in their product/product family standards (see also Clause 4). This test is not relevant for equipment ports intended to be connected to short cables@ having a length less than 20 m or less. The immunity to harmonics and interharmonics@ including mains signalling@ on a.c. power ports (in differential mode) is not included in the scope of this standard and is covered by IEC 61000-4-13 and IEC 61000-4-19. The immunity to conducted disturbances generated by intentional radio-frequency transmitters is not included in the scope of this standard and is covered by IEC 61000-4-6.