Explanation: Section 250.53(A)(2) requires that a single ground rod be supplemented by another electrode. An exception allows a single rod if the resistance of this ...

In an attempt to establish a national standard to improve product quality as well as dimensional and physical characteristics for users of galvanized ground rods, the National Electrical Manufacturers ...

For most street rodders the mechanical aspects of our vehicles are easy to understand; they can be seen, held, even heard. The same can't always be said for electricity; it's not something you can ...