When you think about it, not having a third-wire ground at all is the ultimate ground fault. A GFCI does not require an ...
Extending the wiring for the AC unit’s controller board (Credit: HowToLou) In the case of widely available window AC units you can indeed use them as designed in a window, or as [HowToLou] is in ...
Some stud finders feature other helpful tools like deep scanning and AC wire detection. These prevent you from hitting a pipe or wire when hanging something up—expensive mistakes when you make them.