NM CID ES-3 Practice Questions - New Mexico CID ES-3 Low Voltage Special Systems (Under 50 Volts) Examination Exam

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What is the principal difference between a power-limited fire-alarm (PLFA) circuit and a non-power-limited fire-alarm (NPLFA) circuit?

PLFA sources are listed power-limited supplies; NPLFA sources comply with Chapters 1 through 4 and may have an output not more than 600 volts NPLFA circuits may use only doorbell wire PLFA circuits are exempt from abandoned-cable removal NPLFA circuits cannot use Chapter 3 wiring methods

Correct Answer:

PLFA sources are listed power-limited supplies; NPLFA sources comply with Chapters 1 through 4 and may have an output not more than 600 volts

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