Originally Posted By: bwiley This post was automatically imported from our archived forum.
All of the copper neutral wires in a Square D panel that I inspected this morning were shiny blue at the exposed areas of the wiring at the connection to the buss bar. The discoloration was not consistent in color on each wire, and had the appearance of overheating. The panel was located in the garage. There was no corrosion in the panel, and no other wiring issues.
Any ideas what caused this.
PS, sorry, but the picture won't upload from my camera to my computer!
Originally Posted By: Bob Badger This post was automatically imported from our archived forum.
Hey Blaine all I can think of you already said ‘overheating’ as you said all of them I would be concerned a with loose connection of the service neutral conductor to the neutral bar.
That said I really do not know, I would think you should write this up to be checked by an electrician
On a scale of 1 to 10, 10 being the highest level of concern I would think a 7 or 8. I do not know how that fits in with the terms you use.
Make no attempt to tighten the connection if it has overheated it may break causing the neutral to be disconnected and frying half the stuff in the house.
You gotta get the camera working 
Originally Posted By: rmoore This post was automatically imported from our archived forum.
Hard to imagine ALL of the neutrals overheating or any form of corrosive atmosphere that would change the color of ONLY the neutrals.
I wonder if a lightning strike on the grounded conductor of the service drop could have caused the neutral bar to heat enough to do this without any other obvious effects???
I look forward to possible explanations.
-- Richard Moore
Rest Assured Inspection Services
Seattle, WA
www.rainspect.com
