naSRPS EN 54-33:2026

Fire detection and fire alarm systems - Part 33: Components of voice alarm systems - Active loudspeakers

Scope

This document specifies product characteristics, test methods and performance criteria for loudspeakers with active components (active loudspeakers) intended to broadcast a warning in case of fire in the form of tone(s), voice message(s) or both under the control of voice alarm and indication equipment (VACIE).
NOTE 1 The overall performance of a voice alarm system, especially concerning audibility and intelligibility, is not covered by this part of EN-54. Such system performance can be recommended in CEN/TS 54-32, in national legislation, codes and standards or in contractual documents.
NOTE 2 Passive loudspeakers are covered by EN 54-24 and sounders (including voice sounders) are covered by EN 54-3.

Related directives

NOTE: If the word "harmonized" (marked in green) is not found in the field with the name of the directive, it means that the European standard is not cited in the OJEU.