The proper non-power-limited cable for riser use is which?

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Study for the Fire Alarm Lesson 5and6 Test. Prepare with flashcards and multiple choice questions; each question comes with hints and explanations. Gear up for success on your exam!

Multiple Choice

The proper non-power-limited cable for riser use is which?

Explanation:
Riser-rated cables are required for vertical runs between floors to limit flame spread in shafts. For fire alarm signaling circuits that aren’t power-limited, you want a cable that is both flame-retardant and specifically approved for riser use. The designation NPLFR signals non-power-limited construction with a flame-retardant jacket and riser rating, making it the proper choice for riser applications. Other options either indicate different environments (like plenum) or lack the riser rating, so they aren’t appropriate for vertical shaft runs between floors.

Riser-rated cables are required for vertical runs between floors to limit flame spread in shafts. For fire alarm signaling circuits that aren’t power-limited, you want a cable that is both flame-retardant and specifically approved for riser use. The designation NPLFR signals non-power-limited construction with a flame-retardant jacket and riser rating, making it the proper choice for riser applications. Other options either indicate different environments (like plenum) or lack the riser rating, so they aren’t appropriate for vertical shaft runs between floors.

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