On Friday, December 7, 2018 at 12:49:02 PM UTC-5, Fox's Mercantile wrote:

Probably under sized wiring, or a bad connection somewhere
along the neutral line.
A couple of volts is normal due to the normal voltage drop in
a conductor.

Maybe so. But that is enough to play havoc with such unimportant items as pacemakers, not to mention what it might do to audio and video equipment.

Peter Wieck
Melrose Park, PA