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 ...

Fire alarm wiring can even be blue and be printed with the letters “CAT 5e CM” emblazoned on it. “You cannot read the wire type.” Yes, you can, if you look in the junction boxes and at ...

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 ...