power cable length importance


is it true that a 2 meter power cord length is recomended to have the best possible filtration?
thenis
12-30-11: Jea48
The power for a typical residential house starts at the utility power transformer, that is after all a split phase isolation transformer. Or as some call balanced power....
If your speaking to me, read my post again. Perhaps your confused.
Post removed 
Jea48, we do have ties to the actual grid. Even our cable company complained about the power from the substation feeding my neighborhood. The transformers don't give total isolation. A slight phase shift at the generators do reflect it at the home. But, getting back to the cable issue, the utility is putting some capacitor banks on the primary somewhere(at least the engineer from the cable told me this), and they (utility engineers) think that there may be welders somewhere that may be fed by one of the static lines and generators. It could be even 40-80 miles away. I saw some strange tape wrapped around the insulators (in two substations) fed from the static lines to see if the arcing on them will decrease, and decrease the customers noise. My system is still sounding great though. Good power supplies I imagine.
The full scentific description of power cord length for optimum sound quality. And I preface this with that ALL CABLE Manufactures agree on this whether they put in print or not. "The Power Cable should be of adequate length to extend from the outlet to the component without stretching or requiring additional mechanical fasteners to remain attached to said outlet or component"