AS 7240.4:2018 PDF

AS 7240.4:2018 PDF

The objective of this Standard is to specify requirements, test methods and performance criteria for power supply equipment (PSE) for use in fire detection and alarm systems installed in buildings.

This document is based on ISO 7240-4:2003.

The power supply function (see ISO 7240-1:2014, Figure 1, item L), within a fire detection and alarm system (FDAS) installed in and around buildings, is provided by power supply equipment (PSE). The PSE provides power to all parts of the FDAS, either by direct connection or through one function to another function.

This document is drafted on the basis of mandatory functions, which are to be provided on all the PSE and optional functions (with requirements) which may be provided. It is intended that the options be used for specific applications and to meet the fire detection and alarm system design objectives.

Each optional function is included as a separate entity, with its own set of associated requirements, in order to permit the PSE with different combinations of functions to comply with this document. Other functions associated with fire detection and fire alarm may also be provided, even if not specified in this document.