Which of the following sprinkler types is typically used in light hazard occupancies?

The choice of residential sprinklers for light hazard occupancies is based on their design and operational characteristics that are well-suited to these environments. Light hazard occupancies, which include areas like offices, classrooms, and residential buildings, generally have less combustible material and a lower likelihood of fire escalation compared to more hazardous environments.

Residential sprinklers are designed to respond quickly to a fire event, activating at lower temperature thresholds than other types of sprinklers. They provide effective coverage for the light hazard areas where ceilings are typically lower and the potential fire load is reduced. They help in controlling or extinguishing a fire rapidly, which is crucial in protecting lives and property in these less dangerous environments.

Other sprinkler types, while effective in their own right, are generally tailored for specific hazard classifications. For example, deluge sprinklers are used in high-risk areas where rapid fire spread is expected, and pre-action systems are installed where control over water discharge is deemed necessary due to the risk of accidental activation. Wet pipe sprinklers are commonly used in various scenarios, but residential sprinklers are specifically designed to meet the needs of light hazard applications in a more effective manner.