Cooperating organizations
Foreword
Specification
1. General
1.1 Scope
1.2 Definitions
2. Simple smoke alarms
2.1 Description
2.2 Light beam length
2.3 Aperture in flue
2.4 Length of cable between photocell receiver and
photocell amplifier
2.5 Calibration
2.6 Checking the alarm setting
2.7 Alarm suppression device
2.8 Alarm relay differential
2.9 Relay contact loading
2.10 Temperatures
2.11 Weatherproofing and cleaning
2.12 Wiring
2.13 Supply voltage variation
2.14 Instrument variation
2.15 External alarm
2.16 Failure of components
2.17 Marking
3. Alarm metering devices
3.1 Alarm counter and clock
3.2 Alarm recorder
Appendices
A. Guidance on the installation of smoke alarms
B. Guidance on setting the alarm point
C. Calibration check