Ever heard of a Gauss meter? Its like a Geiger counter but instead of measuring radiation it measures EMF fields.
Used them on occasion, don't put a lot of stock in them. There are better ways to calculate the effects. And yes I said calculate as in calculator..
PGE(since youre in Cali, u know who they are)
Yes they know who I am. I've Started Up a bunch of Power Plants for them. Implemented the first Digitized Metering (or Instrumentation as we call it) 230 Kv Substations for them and other projects they handed the firm I used to work for.
often mails informational fliers in their bills which talk about EMF fields and how there is evidence that EMF fields from 60hz electricity emitting from walls, COULD cause health problems!
Its 6 am, not sure I want to attempt to walk you through the math right now, but it would be the 'Z' operator. The cancelation is proportional to the phase angle of the opposing phase, or in a single phase 120v circuit the resultant neutral phase angle.
Not sure about the bolded part of your comment. Have a reference?
Since you have access to the NEC check the references to "Vessel Heating"
I noticed the article Thomas C. linked to was written in 1995. I too was being flown around the country occasionally for this effect starting around 1990.
I wonder about switch loop circuits where 2 hots are run together and no neutral...I wonder if this method causes higher magnetic fields....
Your a "Quick Study" (meaning you learn fast)
Don't blame your High school Electronics Teacher for not filling in the blanks. When I approached the Owner/Chief Electrical Engineer of the firm I was working for about these "New Fangled Electrical Harmonics" in 1991, he referenced an article written by McPartland's son on behalf of the electronics manufacturers claiming Electrical Harmonics didn't exist.
By 1994 U.L. informed electronics manufacturers they would lose their U.L. rating if they did not address the harmonics loading effect of their equipment.
