Mike Holt Needs Help

I am getting ready to send out some “Electrical Theory Basics Newsletters” and I need your help. Please let me know your thoughts on some practical theory subjects you would like to see me cover in the Newsletter.

Mike I would like to see you cover -----------------.

I think this theory concept is important because -----------------------------.

This theory concept is important for the application of Section -------- in the National Electrical Code.

Example:

Mike I would like to see you cover hysteresis heating and demonstrate why it’s important to know this. I think this theory concept is important because people should understand that if they install a single conductor or phase in a metal raceway, it can cause the metal raceway to heat up to the point of causing a fire. In addition, please explain how this (single conductor in a metal raceway) increases the inductive reactance in the circuit conductors, and impacts the fast clearing of a ground fault. While your at it, explain that electromagnetic fields from this type of installation (even in PVC) can cause havoc with computer monitors.

This theory concept is important for the application of 300.3(B), which requires all conductors of the same circuit to be contained within the same raceway, auxiliary gutter, cable tray, cablebus assembly, trench, cable, or cord.


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