Passive fire protection

Component or system to passively prevent the spread of fire Fire-resistance rated wall assembly with fire door, cable tray penetration and intumescent cable coating Passive fire protection (PFP) is components or systems of a building or structure that slows or impedes the spread of the effects of fire or smoke without system activation, and usually without movement. Examples of passive systems include floor-ceilings and roofs, fire doors, windows, and wall assemblies, fire-resistant coatings, and other fire and smoke control assemblies. Passive fire protection systems can include active components such as fire dampers. Main characteristics Passive fire protection systems are intended to: Contain a fire to the compartment of fire origin Slow a fire from spreading from the compartment of fire origin Slow the heating of structural members Prevent the spread of fire through intentional openings (e.g., doors, HVAC ducts) in fire rated assemblies by the use of a fire rated closure (e.g., fire door, fire damper) Prevent the spread of fire through penetrations (e.g., holes in fire walls through which building systems such as plumbing pipes or electrical cables pass) in fire rated assemblie