Power Forum

RE: Why would dedicated lines help with isolation?

67.104.10.162

In Reply to: RE: Why would dedicated lines help with isolation? posted by skytag on October 07, 2007 at 15:03:04

Indeed it would seem that way but in reality what happens is the high frequency noise energy has trouble making it the long length of a typical wire run so it is attenuated at the end of that run. Further, the impedance of the incoming AC power at the distribution box is lowest, so that's a good combination. Think of it this way: picture the AC at the distribution box as "ground zero" impedance wise. Then picture a star of resistors - each feeding a different circuit. The noise energy is attenuated by the resistors and greatly reduced at "ground zero". This is actually a prety accurate model.

While there's no substitute for local filtering and isolation like that provided by a Duet or Quintet, the addition of dedicated lines is always beneficial.

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