I've been reading on this forum about how often Inspectors write corrections, but what is the rate that Inspectors are wrong?
The second reason to learn the NEC is to do safe electrical installations, but the VERY FIRST REASON to study the NEC is to protect yourself from Inspectors.
I am aware of very fine Inspectors both on this forum and in the workplace, please be confident that my criticisms do not apply to you.
Some of the stupidest things I have ever heard have dribbled out of the mouths of Inspectors. Last week I had an Inspector inform me it was "Illegal" to install 15 amp circuits in any structure. (we have no such local ordinance).
Some of the zaniest, most ridiculous statements have come from inspectors. Often when they blurt out their nonsense, I confront them with the code and they say "OK, I'll let you slide on this one...".
Homeowners never believe the EC is correct, their love of authority tells them that the Inspector is always right and the EC is trying to pull a fast one. When an Inspector shoots down a job for no reason, he has done irreparable damage to the relationship betweem the HO and EC.
Also, when talking about rejection rates from the Inspectors point of view, the average Inspector looks at a lot of DIY type jobs that take several inspections just to become code compliant.
I talked to an Inspector a little while ago and he said that about 75% of the remodels he inspects, were done by the home owner. That fact alone should show that rejections delivered to licensed contractors are not nearly as bad as the over all rate would suggest.
Moral of the story: You must study the code to protect yourself from those who don't.