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Illustrated Changes to the NEC, 2005 Edition - Part 2

Article 760

Fire Alarm Systems

760.42 Equipment Marking

This section was revised to clarify that a€œpower-limited equipmenta€ supplying power-limited fire alarm circuits must be durably marked to indicate each power-limited circuit. This change was necessary because some wiring method manufacturers were advertising that boxes and raceways had to be identified with the "color red" to meet this requirement.

Fire alarm equipment supplying PLFA circuits must be durably marked to indicate each circuit that is a power-limited fire alarm circuit.

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