scope:

Annex B provides information intended to supplement Chapter 5. It includes a procedure for determining detector spacing based on the objectives set for the system, size, and rate of growth of fire to be detected, various ceiling heights, ambient temperatures, and response characteristics of the detectors. In addition to providing an engineering method for the design of detection systems using plume-dependent detectors, heat detectors, and smoke detectors, this annex also provides guidance on the use of radiant energy-sensing detectors.

Many jurisdictions permit technologists to design fire alarm systems following the prescriptive requirements found in the code. Designers using a performance-based approach must review the relevant engineering licensure laws in the jurisdictions in which they practice. It is very likely that performance-based designs of fire alarm systems will be deemed engineering of the type that requires licensure as a professional engineer. The designer should also be knowledgeable in the principles of fire protection engineering and apply these principles judiciously.