That's why you have to join a mystical organization of electrical wizards - AKA a union... (j/k)
The NEC is not that bad. I found a few "homeowners electrical guidebooks" that arrange the info in a more "logical" way (at least to me) but still refer you to the NEC for specifics.
Most of the stuff we, as brewers, do is pretty common sense.
When in doubt, always put in a breaker/fuse and use a larger guage wire.
(And yes, I know I'm being a hypocrite since I admit my rig isn't to code...)
I, for one, actually appreciate the electricians on the board who hassle folks. Even if some of their styles are, well, "rough"

We'll argue for pages and pages about the best way to sparge, but not give a second thought to a crappy wiring job.
Mashing on my non-code electric rig right now