BS 5446-3:2015

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements for alarm systems
5 Constructional and electrical requirements
6 Requirements for components
7 Marking
8 Provision of information
Annexes
Annex A (informative) - Alarm system grades
Annex B (normative) - Power supplies tests
Annex C (normative) - General procedures for tests
Annex D (normative) - Tests for control units
Annex E (normative) - Tests for radio-linked systems
Annex F (normative) - Tests for visual alarm devices
Annex G (normative) - Tests for vibrating pads
Annex H (normative) - Tests for vibrating alerters
Annex I (normative) - Tests for low frequency sounders
Bibliography

Defines requirements and test methods for components and their means of interconnection (e.g. by electrical wiring or by radio links) intended to be assembled to create fire and/or carbon monoxide alarm systems for deaf and hard of hearing people, for the purpose of life safety in dwellings.

The scope of the standard has been modified to include the optional use of carbon monoxide detectors as part of the alarm system in dwellings where there is a risk of CO poisoning. Carbon monoxide detectors were not covered in the previous edition.

Requirements and test methods for equipment intended for use in LAVs have been removed from the scope. It was felt that with the robustness of the requirements for the individual system components, there was no need to complicate system requirements by adding additional tests.