ed ferraioli
04-16-2010, 03:36 AM
I inspected a house the panel and some breakers aound the screws have a white powder substance. I do not know what this is or how it happend. Is it a type of corrosion. Just the bottom of the panel have this white stuff. Rest of the panel seems oky. Thanks for your help in advance. 2nd time I seen this this week.