Is there a code that regulates minimum bending radius for # 12 thhn? I recently had a home inspection done and the "inspector" stated that the wires should have a sweeping bend as opposed to a neatly trimmed bend. He said this was due to heat build up. I am a certified thermographer as well as an electrician and I have never recorded a heating issue due to bend radius on # 12 wires at 120/240 volts. I do not have access to my nec book at this time. I have searched previous threads and could not find a definite answer.