What does the "performance-based" approach refer to in NFPA 72?

The "performance-based" approach in NFPA 72 refers to a method that allows for alternative solutions to achieve the specified safety outcomes of fire alarm systems. This approach is rooted in evaluating the effectiveness of a fire alarm system based on its performance in real-world scenarios rather than strictly adhering to prescriptive requirements.

A key aspect of this methodology is that it takes into account various factors such as occupancy type, building design, and specific hazards present. By focusing on performance, this approach encourages innovation and flexibility, allowing for customized solutions that may better address unique circumstances or provide improved safety measures beyond traditional standards.

This emphasis on achieving safety outcomes through alternate methods means that designers and engineers can propose systems that may not necessarily fit conventional designs but can still meet or exceed the required performance criteria. In essence, it aligns the fire alarm system design with the overall objectives of safety and effectiveness in fire prevention and response.