You're installing a 20-inch-wide, 120/240V panelboard in a dwelling garage. Per the NEC, what's the minimum width of the clear working space in front of it? A. 20 inches B. 24 inches C. 30 inches D. 36 inches 👇 What's your answer, and why? Bonus: How deep does that working space have to be, and what's the minimum height? Answer reveal in a couple of days.

In a normal 120-volt branch circuit, which conductor is intended to carry current back to the source during normal operation? A. Equipment grounding conductor B. Grounded conductor (neutral) C. Grounding electrode conductor D. Main bonding jumper

You’re setting up temporary power for an outdoor event. A portable generator supplies a work light and fan using three-wire cords plugged into receptacles mounted on the generator. The generator’s normally non-current-carrying metal parts and the receptacles’ equipment grounding terminals are properly bonded to its frame. All other applicable requirements are met. Someone says, “You can’t use that until you drive a ground rod!” Under NEC 250.34(A), is a connection to a grounding electrode required for this setup? A. Yes—every portable generator requires a ground rod. B. No—the setup meets the conditions permitting operation without a grounding electrode connection. C. Yes—but only if the generator exceeds 5,000 watts. D. Yes—but only if the generator can supply 240 volts. 👇 Drop your answer AND your reasoning. What detail in the question makes the difference?