Which cable type is intended for riser applications?

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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

Which cable type is intended for riser applications?

Explanation:
Risers between floors require cables that resist flame spread and limit smoke so fire doesn’t quickly travel vertically through a building. FPLR is the cable rated for riser use, meaning its insulation and jacket are specified to meet those vertical- installation requirements. That makes it the appropriate choice for installations in vertical shafts. The other ratings target different spaces: FPL is general indoor use, FPLP is plenum-rated for air-handling spaces, and FPLS covers other conditions not intended for risers. So FPLR is the one designed for riser applications.

Risers between floors require cables that resist flame spread and limit smoke so fire doesn’t quickly travel vertically through a building. FPLR is the cable rated for riser use, meaning its insulation and jacket are specified to meet those vertical- installation requirements. That makes it the appropriate choice for installations in vertical shafts. The other ratings target different spaces: FPL is general indoor use, FPLP is plenum-rated for air-handling spaces, and FPLS covers other conditions not intended for risers. So FPLR is the one designed for riser applications.

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