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Physical Specifications
Technical Specifications
Usage & Installation:
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New York City requires fire alarm cables to meet specific standards beyond standard NEC rules, specifically Local Law 39 (LL39) and Local Law 5. This means the cable must feature specialized insulation (like FEP or ECTFE) that is flame-retardant and low-smoke, often with a higher temperature rating (150°C to 200°C) than standard fire alarm wire.
Unshielded: Ideal for most standard notification appliance circuits (NACs) and pull stations where electromagnetic interference (EMI) is not a concern.
Shielded: Required for data communication links (SLC loops) or installations near high-voltage lines, elevator motors, or fluorescent lighting to prevent signal interference and false alarms.
18 AWG is the most common size for Initiating Device Circuits (IDCs). This includes smoke detectors, heat detectors, and manual pull stations. It is ideal for addressable fire alarm loops where current demand is relatively low.
While 18/2 can be used for shorter runs, many NYC contractors prefer 16/2 or 14/2 for Notification Appliance Circuits (NACs) to prevent voltage drop over the long distances common in NYC high-rises.
NYC Approved FPLP (Plenum): Must be used in "plenum" spaces—areas used for air circulation, like above drop ceilings or under raised floors. These have a low-smoke, high-fire-resistance jacket.
NYC Approved FPLR (Riser): Used for vertical runs between floors (risers). In NYC, most commercial specs call for FPLP even in non-plenum areas for maximum safety, but check your specific building code.
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