A general procedure for dealing with harmonics is as follows: Pull extra neutral conductors. The ideal situation is to only use a shared neutral.

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Pulling extra neutral conductors can help manage harmonics by reducing the potential for neutral overload, which is a common issue with harmonic currents. The ideal situation often involves ensuring that neutral conductors can handle the increased harmonic currents, rather than relying on a shared neutral which can become overloaded due to the additive nature of harmonic currents in the neutral wire.

A General Procedure for Dealing with Harmonics Is as Follows