The 2010 edition of NFPA 72®, National Fire Alarm and Signaling Code includes a number of requirements for emergency communications systems. As outlined by columnist Wayne Moore in the latest edition of NFPA Journal, ensuring intelligibility requirements is likely the biggest challenge for new installations and retrofits of specific systems. That being said, what are the ways to address these challenges?
As Moore explains, "because most fire alarm designers, authorities having jurisdictions, and installers are unfamiliar with basic communications concepts, they don't really understand what hints the requirements provide. Issues related to intelligibility should convince all code users that they are responsible for pursuing the training and education they will need to successfully design, install, and inspect these important systems."