|
General Asylum General audio topics that don't fit into specific categories. |
|
|
|
General Asylum General audio topics that don't fit into specific categories. |
|
In Reply to: RE: Why is lifting all ground superior to leaving only one ground? nt posted by Charles Hansen on August 24, 2008 at 19:22:58:
Based on my experiments I can say with confidence that the AC safety-earth wiring in my house does carry enough RF noise to affect my audio system. Any non-audio appliances that contain switching power supplies will have a Y-rated capacitor connecting the output of the supply to safety-earth, by law. These appliances may well be built to double-insulated standards, but still must have the safety-earth connection because of the switching power supplies.
Even though the safety-earth wiring is connected to earth at the breaker panel, the lengths of the wires from most outlets to the panel prevents them from effectively attenuating the RF noise presented to them.
The best approach is the one you champion: eliminate the AC safety-earth connection by design.
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- The AC safety-earth wiring is a big RF stew-pot! - Al Sekela 13:35:21 08/25/08 (0)
Top of Page ]
[ Contact Us ]
[ Support/Wish List ]
[ Copyright © 2024, Audio Asylum, all rights reserved ]
