scope:

This standard provides guidance and rules to notified or accredited bodies (for Fire Dampers) to allow them to define the extended field of application for fire dampers. This standard identifies the parameters that affect the fire resistance of dampers. It also identifies the factors that need to be considered when deciding whether, or by how much, the parameter can be extended when contemplating the fire resistance performance of an untested, or untestable variation in the construction. The standard gives the principles behind how a conclusion on the influence of specific parameters/constructional details relating to the relevant criteria (E,I,S) can be achieved. The standard does not cover dampers used for smoke control. This document only applies to extended fields of application based on tests successfully undertaken to EN 1366-2. Leakage determined during such tests shall be at least 10 % below the leakage limits for E, or for ES, dependent on classification achieved, given in EN 13501-3 before the EXAP rules can be applied. By application of this standard, it should be possible to identify what specifications should be tested to maximise the field of application. Some information on test programmes is given for guidance purposes.