These cables are Listed by UL in accordance with the requirements in UL 1424, Cables for Power-Limited Fire Alarm Circuits, and UL 1425, Cables for Nonpower Limited Fire Alarm Circuits. For both types ...

Article 800 covers circuits that extend voice, audio, video, interactive services, and outside wiring for fire alarms and burglar alarms from the communications utility to the customer’s ...

Normally, the fire alarm initiating device, notification appliance and signaling line circuits are not run outside the building. When we have no choice but to run them overhead or underground ...