NEC Requirements for Limited Energy and Communications Systems textbook, 2017 NEC
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Subjects include the NEC rules that apply to low-voltage and limited-energy systems that most people are not aware of, definitions, the general NEC installation requirements, and specific NEC requirements for control, sound, video, CATV, CCTV, antennas, telephone, fiber optics, etc. Topics include grounding, cable installation, spacing, support, etc.
This textbook includes practice questions, quizzes, and a final exam.