The NEC (published by the NFPA) addresses the installation of electrical conductors, equipment, and raceways; signaling and communications conductors, equipment, and raceways; and optical fiber cables and raceways in commercial, residential, and industrial occupancies.
An excellent book that it is totally worth its price , very commended and also needed to be able to study and pass the exam
Robert
This book was very simply, easy to understand and thanks to Contractor Campus I passed my exam with flying colors !Jess Marie