DIN EN 1366-2:2015-09

This European Standard specifies a method for determining the fire resistance of fire dampers installed in fire separating elements designed to withstand heat and the passage of fire, smoke and gases at high temperature. This European Standard is used in conjunction with EN 1363-1. This standard is not suitable for testing fire dampers in suspended ceilings. This standard is not suitable for testing non-mechanical fire dampers (see EN 1366-12). The purpose of the test is to evaluate the ability of a fire damper to prevent fire and smoke spreading from one fire compartment to another through the air ductwork system which may penetrate fire separating walls and floors. The fire damper is attached (directly or remotely via a section of ducting), to a fire separating element in a manner representative of practice. Tests are performed starting with the fire damper in the open position to expose the temperature sensing element of the fire damper to furnace conditions. Temperature and integrity measurements are carried out in various parts of the test construction during the test. The leakage of the fire damper system is measured (continuously during the test) by direct flow measurements whilst maintaining a constant pressure differential across the closed fire damper of 300 Pa. The leakage of the fire damper in the closed position is also measured at ambient temperature, when a reduced leakage classification needs to be achieved. This document has been prepared by Technical Committee CEN/TC 127 "Fire safety in buildings" (secretariat: United Kingdom). The committee responsible for this standard is NA 005-52-07 AA "Brandverhalten von Baustoffen und Bauteilen - Bedachungen (SpA zu CEN/TC 127/WG 5 sowie Teilbereichen von CEN/TC 127/WG 7 und ISO/TC 92/SC 2)" ("Reaction to fire of building materials and building components - Roofs (national mirror committee for CEN/TC 127/WG 5 and sub-sections of CEN/TC 127/WG 7 and ISO/TC 92/SC 2)") at the DIN Standards Committee Building and Civil Engineering (NABau).