Test for voltage potential by measuring from a ground point .
I usually plug an extension cord into a receptacle with a good ground.
Run the extension cord to where you wish to test and use its ground pin as a reference point.
You can also buy a battery powered tester that signals when its near a conductor with voltage on it. Mine cost me $20.
Some jurisdictions may not allow k&t revisions, but not all!
A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! Helping You to Do It Yourself!