Beginners will find answers to practical on-the-job problems, and experts will be able to explore in depth the reasons behind NEC rules and the additional issues related to each question in this examination of frequently- and not-so-frequently-asked questions. Based on questions posed to, and answered by, NFPA's Advisory Services engineers.
Includes coverage of:
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Where GFCI, AFCI, and overcurrent protection are required.
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“Parallel paths” and “objectionable current over grounding connectors.”
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Ampacity calculations coordinated with termination and continuous load requirements.
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How to use dual-marked wiring cables.
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Use of cable trays permitted in other than industrial occupancies.
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Low-voltage lighting systems.
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Overcurrent protection requirements for motors.
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Classification of hazardous locations.
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Definition of Class 1, 2, and 3 remote-control, signaling, and power-limited circuits.
