Fire Alarm Cables/Power Limited Circuit Cables - Article 760
Article 760
The scope of this article covers the installation of wiring and equipment of fire alarm systems including all circuits controlled and powered by the fire alarm system including fire detection and alarm notification, guard’s tour, sprinkler waterflow, and sprinkler supervisory systems; circuits controlled and powered by the fire alarm system include circuits for the control of building systems safety functions, elevator capture, elevator shutdown, door release, smoke doors and damper control, fire doors and damper control and fan shutdown, but only where these circuits are powered by and controlled by the fire alarm system.
Fire Power Limited Cable: Type FPL, FPLR, FPLP
NEC DEFINITIONS FOR ARTICLE 760
Fire Alarm Circuit: The portion of the wiring system between the load side of the overcurrent device or the power-limited supply and the connected equipment of all circuits powered and controlled by the fire alarm system. Fire alarm circuits are classified as either nonpower limited or power limited.
Non-Power-Limited: A fire alarm circuit powered by a source that complies with NEC Sections 760-21 and 760-23.
Power-Limited (PLFA): A fire alarm circuit powered by a source that complies with NEC Section 760-41.
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