What is the requirement for fusible links or heat detectors in exhaust ducts?

The requirement for fusible links or heat detectors in exhaust ducts is essential for ensuring that fire suppression systems function effectively in areas where cooking equipment is used. Installing at least one fusible link or heat detector within each exhaust duct opening is crucial for detecting and responding to fire hazards promptly.

Fusible links or heat detectors help to activate the fire suppression system automatically when a certain temperature is reached, which is particularly important in exhaust ducts where grease buildup can ignite and lead to potentially severe fire outbreaks. By placing a detector at each opening, it ensures that any fire that may develop in the duct system is detected early, allowing for the activation of the dry chemical extinguishing systems to mitigate the risk of fire spread and protect both the kitchen and the occupants.

This requirement is in line with safety standards aimed at promoting fire safety in commercial kitchens where cooking processes often generate significant heat and flammable materials.