For light hazard areas, what is the regulation regarding the number of heads on a branch line?

In light hazard areas, the regulation specifies that a branch line can have a maximum of eight sprinkler heads. This limit is established to ensure adequate water distribution and coverage, while also maintaining proper pressure for all the heads in operation during a fire event. By restricting the number of heads, the system can be designed to provide effective suppression without compromising the hydraulic performance.

This standard is aligned with accepted fire protection engineering practices and guidelines that prioritize safety and efficiency in fire suppression systems. Ensuring that the branch line does not exceed this limit helps maintain the integrity of the firefighting water supply and optimizes the function of the sprinkler system in light hazard scenarios, where the potential for fire spread is comparatively lower.

Understanding this regulation is crucial for sprinkler fitters as it impacts the overall design and efficacy of fire protection systems in various occupancy classifications.