So, you have a hypotheticaly 220v amplifier, If you say the transformer (pole) has a split phase secondary, then the amp should have ground loop & other indescribable issues?
12-24-13: Gvasale
I see you do not live in the USA or Canada. Here in the US the power that feeds most houses is fed from a single phase transformer with a split phase secondary winding.
You will just have to trust me on that. Or you could do a little research on the subject and learn for yourself.
Here is an
Example to get you started.
You spoke of 220V. I assume you live in a country that uses 220V power to feed residential dwelling units, houses.
Just guessing, because I have no idea, just 220V is fed to the premises. One Line, leg, of the 220V feed is intentionally connected to earth making it the Grounded Conductor, neutral. The other Line, leg, is the Hot the ungrounded conductor.
If that is the case you do not have the same power situation as we do here in the US.
I go back to the ground is the same ground, no matter what & the phase is normal (single), Not split, or would ac motors not run, right? Motors, capacitor start, "split' phases themselves, right?
I haven't the foggiest idea what you are saying.
Going back to the power supply, all are rectifying AC to DC and usually have full wave rectifcation and hopefully adequate filtering, of one or two stages & regulation too.
Really.....
And how about coupling capacitance leakage from the primary winding of the power transformer of the equipment. Add that to audio equipment that uses an equipment grounding conductor.
Having 120V branch circuits fed from both L1 and L2 feeding equipment that is connected together by ICs only adds together leakage voltage because of the 240V potential of the L1 and L2 fed circuits.
And then in the case of audio equipment that uses a safety equipment. Poorly designed equipment is susceptible to ground loops when the signal ground of the equipment is also connected to the chassis. In this case one piece of equipment may be fed from L1 and another from L2. A 240V potential is present on the 2 hots feeding the audio equipment. Here also any leakage to the equipment ground will be additive and possibly cause a ground loop hum.
I can't download your link yet, but I'll keep trying.
Keep trying.....
This, and I don't mean to offend anyone, is really kind of out there if you know what I mean.
12-24-13: Gvasale
I suggest you do a little research on the subject before you start bad mouthing others. You just might learn something in the process.
