NPLFP designates non power-limited fire protective signaling circuit plenum cable, rated for non power-limited fire alarm circuits installed in plenum air-handling spaces.
NPLFP designates non power-limited fire protective signaling circuit plenum cable, combining the non power-limited fire alarm classification with a plenum rating. Plenum-rated cable meets strict requirements for low flame spread and low smoke generation because it is installed in plenum spaces, the air-handling areas of a building where fire and smoke could spread through the ventilation system.
Because plenum spaces carry circulating air, fire alarm cable routed through them must limit its contribution to flame and smoke in a fire. The NPLFP designation identifies cable that satisfies both the non power-limited fire signaling requirements and the demanding fire performance of plenum locations, suiting it to the most stringent installation areas.
In commercial and industrial buildings, fire protective signaling cable in plenum spaces supports critical alarm and detection systems while meeting strict safety requirements. Selecting the correctly designated cable for both the circuit type and the location is part of building a compliant fire safety system.
At Windy City Wire, the focus on low-voltage cable includes plenum-rated fire signaling types such as NPLFP. Supplying cable carrying the appropriate designations helps commercial facilities apply the correct product for fire alarm circuits routed through air-handling spaces.
NPLFP (Non Power-Limited Fire protective signaling circuit Plenum cable)
NEC (National Electrical Code), which defines plenum fire signaling cable requirements