Technical data 199 Category C4If the provisions under Category C3 cannot be met, the requirements of the standardcan be met as follows:1. It is ensured that no excessive emission is propagated to neighboring low-voltagenetworks. In some cases, the inherent suppression in transformers and cables issufficient. If in doubt, the supply transformer with static screening between theprimary and secondary windings can be used.2. An EMC plan for preventing disturbances is drawn up for the installation. Atemplate is available from the local ABB representative.3. The motor and control cables are selected as specified in this manual.4. The drive is installed according to the instructions given in this manual.WARNING! A drive of category C4 is not intended to be used on a low-voltage publicnetwork which supplies domestic premises. Radio frequency interference is expectedif the drive is used on such a network.Low voltageEquipmentLow voltageEquipmentEquipment(victim)Supply transformerMedium voltage networkStatic screenPoint of measurementDriveNeighboring network
