Key attributes of Passive Fire Protections (PFP)
The aim for Passive Fire Protections (PFP) systems are shown in its fire testing. The ability to maintain the separation to be protected, at or below 140 °C (for walls, floors and electrical circuits) or 550 °C for structural steel, which is considered its critical temperature before deformation.
Fire testing involves live fire exposures upwards of 1100 °C, depending on the fire-resistance rating and duration one is after. More items than just fire exposures are typically required to be tested to ensure the survivability of the system under realistic conditions.
PFP systems are intended to contain a fire in the compartment of origin as outlined in the building code and fire code, are tested to determine the fire resistance rating of the final assembly and are usually expressed in terms of minutes of fire resistance (e.g. 30, 60, 120, 180 or 240mins).
Unlike active measures, passive fire protection means don't require electric or electronic activation or a degree of motion. Exceptions being mechanical fire dampers (fire-resistive closures within air ducts) and fire door closers, which must open and shut in order to work, as well as all Intumescent products, which swell, thus move, in order to function.
Relax, it's taken care of