If the required FPLR cable is not sufficient, which substitute is permitted for fire alarm wiring?

If the required FPLR cable is not sufficient, which substitute is permitted for fire alarm wiring?

• A. FPL
• B. CM
• C. FPLP
• D. CLR

Answer: (C)

Substituting fire alarm wiring must use a cable with an equivalent fire-performance listing to the one specified. When FPLR is not available, a listed substitute from the same family that provides similar fire resistance and propagation characteristics is permitted. FPLP fits this role because it is an approved fire alarm cable with the appropriate listings for fire-resistance performance, making it an acceptable substitute for FPLR in many fire alarm installations. The other cables do not carry the same required fire-alarm listings or performance: general-purpose CM is not rated for fire alarm service, and CLR does not meet the specific fire-performance listing needed for this use, while plain FPL lacks the necessary alternative rating for the installation path.

Substituting fire alarm wiring must use a cable with an equivalent fire-performance listing to the one specified. When FPLR is not available, a listed substitute from the same family that provides similar fire resistance and propagation characteristics is permitted. FPLP fits this role because it is an approved fire alarm cable with the appropriate listings for fire-resistance performance, making it an acceptable substitute for FPLR in many fire alarm installations. The other cables do not carry the same required fire-alarm listings or performance: general-purpose CM is not rated for fire alarm service, and CLR does not meet the specific fire-performance listing needed for this use, while plain FPL lacks the necessary alternative rating for the installation path.