@Stoic - I opened the door with my reply to your initial post - sorry

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I've dealt with theory vs. practical people over the years also.
Both are needed and the good ones I've worked with have a grasp on both ends of the rope.
While looking around for info on, let's change the term to power disturbances, I found this site.
http://www.fpl.com/l...s_for_business.shtmlIronically it's your own FPL.
Some good info. I like the FAQ's, FPL Lingo, etc. toward the bottom of the page. If surges, sags, spikes and the like didn't exist why would they be discussing them, what they affect and methods of prevention? A rhetorical ques.

Found another one on Pacific Gas & Electric's site but can't get just the link to copy. It is to a pdf on their site. If anyone is interested:
http://rds.yahoo.com...vf9k/EXP=1244489196/**http%3a//www.pge.com/includes/docs/pdfs/about/news/outagestatus/powerquality/avoid_pwr_disturb.pdf
There's also some good info on some of the different manufacturers and consultants web sites. Don't want to post them for fear of being considered a spammer.
Google or Yahoo 'power quality disturbances' and take your pick.
All done for me.
