Jim Dollard has an extensive background in codes and standards. Send questions about the National Electrical Code (NEC) to Jim at codefaqs@gmail.com. Answers are based on the 2020 NEC. Any, all or two bonding methods An...

I have been mentioning “branch” in general in my articles for the last several months. Now, let’s get specific. Branch First, let’s define branch. Generally, in estimating terms, branch is smaller conduit and wire. This...

This Article focuses on revisions in Chapter 6 of the 2020 NEC, “Special Equipment,” and it includes the requirements for special equipment such as electric signs and outline lighting systems, electric vehicle (EV) supply...

Recently, I received a phone call from an electrical contractor friend who was discussing with an electrical inspector the differences of branch circuits supplying swimming pool equipment versus swimming pool equipment feeder...

Jim Dollard has an extensive background in codes and standards. If you have a query about the National Electrical Code (NEC), Jim will help you solve it. Send questions to codefaqs@gmail.com. Answers are based on the 2017 NEC...

Reducing differences of potential between conductive equipment or other objects and ground (earth) helps minimize shock hazards in normal circuit operation. In patient care spaces, it is even more important that overcurrent...

Jim Dollard has an extensive background in codes and standards. If you have a query about the National Electrical Code (NEC), Jim will help you solve it. Questions can be sent to codefaqs@gmail.com. Answers are based on the...