UL 464
Audible Signaling Devices for Fire Alarm and Signaling Systems, Including Accessories

DETAILS
Edition Number:10SCC Approved:--
Edition Date:2016-01-28DOD Approved: --
Price Code:BANSI Approved: 2016-01-28
Type:ululc

  • SCOPE

    1 Scope

    1.1 This standard applies to electrically operated bells, sirens, horns, and similar audible signaling devices, rated at 300 V or less, for fire alarm and signaling systems and intended for indoor and/or outdoor installation:

    a)    In Canada, in accordance with CSA C22.1,  Canadian Electrical Code, Part I, Safety Standard for Electrical Installations; and with CAN/ULC-S524,  Standard for Installation of Fire Alarm Systems. Refer to CAN/ULC-S541,  Speakers for Fire Alarm and Signaling Systems, Including Accessories, for requirements pertaining to speakers.

    b)    In the United States in accordance with the National Electrical Code, NFPA 70, and the National Fire Alarm and Signaling Code, NFPA 72.

    1.2 This standard applies to audible signaling devices for use in ordinary (non-hazardous or non-corrosive) locations.

    1.3 This standard also applies to protective covers and accessories used with audible signals.

    1.4 This standard does not apply to door bells, buzzers and chimes used in household and similar applications and intended for operation on Class 2 signal circuits as defined in:

    a)    In Canada, CSA C22.1,  Canadian Electrical Code, Part I, Safety Standard for Electrical Installations,

    b)    In the United States, the National Electrical Code, NFPA 70.

    NOTE: In the United States, general signaling appliances are covered by the Standard for Audible Signal Appliances for General Signaling Use, UL 464A.

    1.5 Audible signaling devices for use in hazardous or corrosive locations shall comply with the requirements of this Standard and the applicable requirements of:

    a)    In Canada, CSA C22.1,  Canadian Electrical Code, Part I, Safety Standard for Electrical Installations, with respect to the location hazard;

    b)    In the United States, the National Electrical Code, NFPA 70.

    1.6 A supplementary visual signal, incorporated as part of an audible signaling device which is intended for fire alarm application shall comply with the requirements of this Standard and the applicable requirements of:

    a)    In Canada, CAN/ULC-S526, Standard for Visible Signaling Devices for Fire Alarm and Signaling Systems, Including Accessories;

    b)    In the United States, the Standard for Visible Signaling Devices for Fire Alarm and Signaling Systems, Including Accessories, UL 1638.

  • TABLE OF CONTENTS
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    • Cover
    • Transmittal
    • UL Harmonized Standard Title Page
    • Table of Contents
      • Audible Signaling Devices for Fire Alarm and Signaling Systems, Including Accessories
        • Section
          • 1 Scope
          • 2 General
            • 2.1 Components
            • 2.2 Units of Measurement
            • 2.3 Control Unit Interface
            • 2.4 Reference Publications
            • 2.5 Audible Signal Pattern
          • 3 Glossary
          • 4 Instructions and Drawings
          • 5 Construction
            • 5.1 General
            • 5.2 Enclosures
            • 5.3 Corrosion Protection
            • 5.4 Field Wiring Connections
            • 5.5 Internal Wiring
            • 5.6 Bonding for Grounding
            • 5.7 Components – Electrical
            • 5.8 Spacings
          • 6 Marking
          • 7 Performance Tests
            • 7.1 General
            • 7.2 Input test
            • 7.3 Output Sound Pressure Level
            • 7.4 "Reserved"
            • 7.5 Directional Characteristic
            • 7.6 Temperature Rise
            • 7.7 Dielectric Voltage-Withstand
            • 7.8 Endurance
            • 7.9 Variable Ambient Temperature
            • 7.10 Humidity
            • 7.11 Abnormal Operation and Burnout Test
            • 7.12 Component Stress
            • 7.13 Jarring
            • 7.14 Vibration
            • 7.15 Strain Relief
            • 7.16 Accelerated Corrosion Tests
            • 7.17 Water Spray
            • 7.18 Polarity Reversal
            • 7.19 Electric Shock Current
            • 7.20 Tests on Polymeric (Plastic) Materials
            • 7.21 Mechanical Strength Tests for Enclosures
            • 7.22 Interference from Radio Frequency and Electromagnetic Radiation
            • 7.23 Marking Permanence
            • 7.24 Evaluation of Conformal Coatings on Printed Wiring Boards
            • 7.25 Gasket Materials Test
            • 7.26 Locked Rotor Test
          • 8 Requirements for Dwelling Unit Audible Signaling Devices (In Canada Only)
            • 8.1 General
            • 8.2 Output Sound Pressure Level
            • 8.3 Operation
            • 8.4 Endurance
            • 8.5 Timer Tests
            • 8.6 Operating Mechanism
            • 8.7 Polarity Reversal Test
          • 9 Manufacturing and Production Tests
            • 9.1 General
            • 9.2 Production-Line Dielectric Voltage-Withstand
            • 9.3 Production-Line Grounding-Continuity Test for AC Mains-Voltage, Cord-Connected Products
          • 10 Requirements for Protective Covers and Accessories for Audible Signaling Devices
            • 10.1 General
            • 10.2 Installation Instructions
            • 10.3 Construction Requirements
            • 10.4 Markings
            • 10.5 Performance Tests
            • 10.6 Output Sound Pressure Level
        • Section
          • TABLES Tables
        • Section
          • FIGURES Figures
    • Annex A (Informative) – Standards for Components
    • Annex B (Normative) – Alarm Signal Temporal Pattern
    • Annex C (Informative) – Test Sample Sequence
    • Annex D (Normative) – French Translations of Required Markings
    • Annex E (Informative) – French Translations of Markings