Electrical calculations generally fall within two categories: dc circuit analysis and ac circuit analysis.

Because meter sockets are now being installed on the other side of a customer’s load center, as part of PV installations, it is important for an inspector to understand the terminal configurations to help ensure the equipment was installed in a safe manner.

In the last issue we discussed the NEC requirements up through 110.14, Electrical Connections, so we will start with 110.15, the requirement for identifying the high leg.