CABLING FOR LIFE SAFETY

摘要

Fire alarm and life safety systems are still based on the design criteria developed a century ago; the obvious need to make them reliable enough to ensure the safety of people inside buildings. There are comprehensive standards covering the design of these systems (NFPA 72 and 101 in the US) that are adopted into building codes in most areas. Those involved in the design and construction of these systems are expected to be thoroughly trained and licensed and are also expected to keep abreast of new developments in the field. Today, there are two issues facing these systems caused by technology. First other systems in buildings are using newer, more powerful computing and networking technology that could make these systems more effective. Secondly, changes in how we communicate are making it important to consider expanding notification systems for alarms to provide faster and more widely distributed notifications using not only alarms and lights but public address systems, phone, text, email, pagers, instant messaging, etc. The need for fast and widespread notification for fire alarms is obvious, but the many instances of shootings on campuses underscores the need for more widespread notifications using every.