ISO 7240-24:2010
Fire detection and fire alarm systems — Part 24: Sound-system loudspeakers
ISO 7240-24:2010 specifies requirements, test methods and performance criteria for loudspeakers intended to broadcast a warning of fire between a fire detection and alarm system and the occupants of a building (see item C4 of ISO 7240-1:2005).
ISO 7240-24:2010 specifies loudspeakers for two types of application environment: type A, generally for indoor use, and type B, generally for outdoor use.
ISO 7240-24:2010 does not cover loudspeakers for special applications, for example loudspeakers for use in hazardous applications, if such applications require additional or other requirements or tests other than those given in ISO 7240-24:2010.
ISO 7240-24:2010 is not intended to cover addressable loudspeakers or loudspeakers with active components.
Aural alarm indicators are covered in the future ISO 7240-3.
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Scope
Normative references
Terms, abbreviated terms and definitions
Terms and definitions
Abbreviated terms
Requirements
Compliance
Frequency response limits
Durability
Construction
Provision for external conductors
Materials
Ingress protection
Access
Marking and data
Marking
Data
Tests
General
Atmospheric conditions for tests
Operating conditions for tests
Mounting arrangements
Tolerances
Frequency response measurement and sensitivity calculation
Measuring arrangement
Measurements
Sensitivity calculation
Frequency response measurement and sensitivity calculation f
General
Measuring arrangement
Measurements
Provision for tests
Test schedule
Reproducibility
Object of the test
Test procedure
Requirements
Rated impedance
Object of the test
Test procedure
Requirements
Horizontal and vertical coverage angles
Object of the test
Test procedure
General
Horizontal coverage angle
Vertical coverage angle
Requirements
Maximum sound pressure level
Object of the test
Test procedure
General
Measurement of maximum sound pressure level
Requirements
Rated noise power (durability)
Object of the test
Test procedure
General
Conditioning
Measurements during conditioning
Final measurements
Requirements
Dry heat (operational)
Object of the test
Test procedure
General
State of specimen during conditioning
Conditioning
Measurements during conditioning
Final measurements
Requirements
Dry heat (endurance)
Object of the test
Test procedure
General
State of the specimen during conditioning
Conditioning
Final measurements
Requirements
Cold (operational)
Object of the test
Test procedure
General
State of specimen during conditioning
Conditioning
Measurements during conditioning
Final measurements
Requirements
Damp heat, cyclic (operational)
Object of the test
Test procedure
General
State of the specimen during conditioning
Conditioning
Measurements during conditioning
Final measurements
Requirements
Damp heat, steady state (endurance)
Object of the test
Test procedure
General
State of the specimen during conditioning
Conditioning
Final measurements
Requirements
Damp heat, cyclic (endurance)
Object of the test
Test procedure
General
State of the specimen during conditioning
Conditioning
Final measurements
Requirements
Sulfur dioxide (SO2) corrosion (endurance)
Object of the test
Test procedure
General
State of the specimen during conditioning
Conditioning
Final measurements
Requirements
Shock (operational)
Object of the test
Test procedure
General
State of the specimen during conditioning
Conditioning
Final measurements
Requirements
Impact (operational)
Object of the test
Test procedure
General
State of the specimen during conditioning
Conditioning
Final measurements
Requirements
Vibration, sinusoidal (operational)
Object of the test
Test procedure
General
State of the specimen during conditioning
Conditioning
Measurements during conditioning
Final measurements
Requirements
Vibration, sinusoidal (endurance)
Object of the test
Test procedure
General
State of the specimen during conditioning
Conditioning
Final measurements
Requirements
Ingress protection
Object of the test
Enclosure of the loudspeaker
Test procedure
General
State of the specimen during conditioning
Conditioning
Final measurements
Requirements
Test report
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Scope
Normative references
Terms, abbreviated terms and definitions
Terms and definitions
Abbreviated terms
Requirements
Compliance
Frequency response limits
Durability
Construction
Provision for external conductors
Materials
Ingress protection
Access
Marking and data
Marking
Data
Tests
General
Atmospheric conditions for tests
Operating conditions for tests
Mounting arrangements
Tolerances
Frequency response measurement and sensitivity calculation
Measuring arrangement
Measurements
Sensitivity calculation
Frequency response measurement and sensitivity calculation f
General
Measuring arrangement
Measurements
Provision for tests
Test schedule
Reproducibility
Object of the test
Test procedure
Requirements
Rated impedance
Object of the test
Test procedure
Requirements
Horizontal and vertical coverage angles
Object of the test
Test procedure
General
Horizontal coverage angle
Vertical coverage angle
Requirements
Maximum sound pressure level
Object of the test
Test procedure
General
Measurement of maximum sound pressure level
Requirements
Rated noise power (durability)
Object of the test
Test procedure
General
Conditioning
Measurements during conditioning
Final measurements
Requirements
Dry heat (operational)
Object of the test
Test procedure
General
State of specimen during conditioning
Conditioning
Measurements during conditioning
Final measurements
Requirements
Dry heat (endurance)
Object of the test
Test procedure
General
State of the specimen during conditioning
Conditioning
Final measurements
Requirements
Cold (operational)
Object of the test
Test procedure
General
State of specimen during conditioning
Conditioning
Measurements during conditioning
Final measurements
Requirements
Damp heat, cyclic (operational)
Object of the test
Test procedure
General
State of the specimen during conditioning
Conditioning
Measurements during conditioning
Final measurements
Requirements
Damp heat, steady state (endurance)
Object of the test
Test procedure
General
State of the specimen during conditioning
Conditioning
Final measurements
Requirements
Damp heat, cyclic (endurance)
Object of the test
Test procedure
General
State of the specimen during conditioning
Conditioning
Final measurements
Requirements
Sulfur dioxide (SO2) corrosion (endurance)
Object of the test
Test procedure
General
State of the specimen during conditioning
Conditioning
Final measurements
Requirements
Shock (operational)
Object of the test
Test procedure
General
State of the specimen during conditioning
Conditioning
Final measurements
Requirements
Impact (operational)
Object of the test
Test procedure
General
State of the specimen during conditioning
Conditioning
Final measurements
Requirements
Vibration, sinusoidal (operational)
Object of the test
Test procedure
General
State of the specimen during conditioning
Conditioning
Measurements during conditioning
Final measurements
Requirements
Vibration, sinusoidal (endurance)
Object of the test
Test procedure
General
State of the specimen during conditioning
Conditioning
Final measurements
Requirements
Ingress protection
Object of the test
Enclosure of the loudspeaker
Test procedure
General
State of the specimen during conditioning
Conditioning
Final measurements
Requirements
Test report