Advises procedures for assessing disturbance levels produced by emission of devices, equipment and systems installed in non-public networks in industrial environments, concerned with low-frequency conducted disturbances in the power supply: from which basis the relevant emission limits can be derived. Refers to low and medium voltage a.c.non-public supply at 50/60 Hz. Not applicable to networks for ships, aircraft, off-shore platforms and railways. Applies to the following low-frequency conducted disturbances emitted by equipment connected to power supply: harmonics and interharmonics, unbalances, voltage changes and voltage dips.