When is CI Cable Used For Hospital Notification Circuits?

NFPA 72 Chapter 23.10.2 states: “Fire alarm systems used for partial evacuation and relocation shall be designed and installed so that attack by fire within a notification zone shall not impair control and operation of the notification appliances outside that notification zone.” Most, if not all hospitals use partial evacuation or relocation when a fire [Read More]

UL 2196 Approved CI/CIC Cables

Back in 2012, UL delisted all previously approved CI/CIC cables after it determined that the cables could not actually withstand attack by fire for 2 hours. It took a while for UL to reconfigure the standard, but in 2017 they re-issued the standard for manufacturers to use. The following cables are UL 2196 approved and [Read More]

When are 2 Hour Rated Circuit Protection for Fire Alarm Systems Required?

An electrical circuit’s survivability in harsh conditions is defined by the method of its installation. Some circuits that are relied upon to supply power to critical functions related to life safety need extra protection from fire, water and physical damage. Those of us in the fire alarm industry know circuit integrity (CI) cable enhances survivability [Read More]

When Does CI Cable Need to be Used?

Circuit Integrity (CI) cable is an expensive method to ensure life safety circuits continue to function during a fire. At a cost of about $6 a foot, compared to $1.50 a foot for plenum rated fire alarm cable, why would an installer use this type of cable? Well obviously because he has to, but why [Read More]