scope:

This section of IEC 839-2 gives the specific requirements and test methods for passive glass-break detectors using piezoelectric sensors for use in intruder alarm systems installed in buildings. This standard is an addition to the general requirements for detectors for use in intruder alarm systems as specified in IEC 839-2-2, and should also be used in conjunction with the standard for general requirements for alarm systems, IEC 839-1-1. This standard applies to detectors to detect the breaking of glazed areas of standard glass or plate glass on which the sensor is mounted.