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In the Forum: Audio Discussions
In the Thread: It’s mad, mad, mad... electricity.
Post Subject: Ground and Broadcast NoisePosted by Paul S on: 8/19/2022
About any electric motor can be heard through a hi-fi, including furnaces, ACs, washer, dryer, refridgerators, dishwashers, etc. Isolation efforts include dedicated AC lines with home-run neutral and ground wires. I've never tried one, but there are plug-in "noise supressors" for refridgerators. AC regenerators are known for spreading noise through their own wires to other components, also through the air. Physical distance from susceptable components helps the latter. The neutral and the "safety ground" "should be" tied together inside the component, ie., star grounded. However, it might be that current hangs around in a component, and noise "rides" the charge. In such a case, a ground-only bleeder can often route the standing charge to a ground with a very low resistance. If it works, it works. If not, not.
Paul SRerurn to Romy the Cat's Site