In Reply to: Now you have to change the wiring from the pole to the wall plug posted by eds65gto on January 24, 2007 at 09:17:27:
Most of the transformers on the pole are of the single bushing type. So, the hv return and the center neutral feed to all the houses share a common connection, and that is fed to the earth every 2nd or third pole, depending on the worst case soil moisture content. So, depending on the power company's ability to balance the three phase network currents to minimize the imbalance of the hv neutral, there will be earth currents flowing, causing a gradient. Typical house setups will earth at the water pipe coming to the house, and many have a seperate grounding rod dropped at the service feed entrance to the house.Ground loops are huge, and put there by design in the effort to provide a safe electrical feed to the houses.
It's better to try to reduce the ground loop at the equipment, and sometimes the line cord design does affect that. Unfortunately, most of the line cord stuff is pretty much hit or miss, leaving users left to experiment.
Im surprised you didn't include the "miles and miles of wires back to the powerstation" argument..so at least you didn't waste time typing that fallacy of an argument..
Hey, don't be a stranger...if you have any questions, just ask..
Cheers, John
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Follow Ups
- While that MAY seem like a good idea, it doesn't solve anything. - jneutron 10:03:34 01/25/07 (0)