Part 2 Another safety issue is reverse polarity.  Reverse polarity is the switching of the hot and neutral wires in a circuit.  Reverse polarity is prevented in personal and home electrical devices by one of the blades on 15 and 20 amp plugs being wider than the other blade.  When a wire is crossed in… Continue reading NEC 2020 CODE CHANGES


A Major Topic of the 2020 National Electric Code Update The triannual update to the National Electric Code (NEC) is nearly complete and is due for publishing later this year for states and other Authorities Having Jurisdiction (AHJ) to adopt and implement at the beginning of 2020. In my state of Washington, the new editions… Continue reading GFCI PROTECTION