UL 1638
Original price was: $225.67.$112.00Current price is: $112.00.
Visible Signaling Devices for Fire Alarm and Signaling Systems, Including Accessories
Underwriters Laboratories , 04/27/2023
Visible Signaling Devices for Fire Alarm and Signaling Systems, Including Accessories
UL 1638
1 Scope
1.1 This standard applies to visual signaling devices 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 S525, Audible Signaling Devices for Fire Alarm and Signaling Systems, Including Accessories, CAN/ULC-S541, Speakers for Fire Alarm and Signaling Systems, Including Accessories, for requirements pertaining to audible devices and 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 These requirements cover visible signal devices for use in ordinary (non-hazardous) indoor locations and outdoor locations. This includes:
- a) Flashing visual devices used for fire alarm or emergency signaling in both public mode and private mode as defined in the glossary
- b) Emergency warning used to notify occupants that an emergency exists.
- c) Informative type visual signaling devices connected to or controlled by fire alarm or other emergency signaling system equipment, or both.
1.3 This standard also applies to protective covers and accessories used with visible signals.
1.4 This standard does not apply to visual signaling devices not intended for emergency signaling 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.
1.5 Visible 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, theNational Electrical Code, NFPA 70.
Note: In the United States, general signaling appliances are covered by UL 464A.
1.6 A supplementary audible signal, incorporated as part of a visible 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-S525, Audible Signaling Devices for Fire Alarm and Signaling Systems, Including Accessories, and CAN/ULC-S541, Speakers for Fire Alarm and Signaling Systems, Including Accessories,
- b) In the United States, Standard for Audible Signal Appliances for Fire Alarm and Signaling Systems, Including Accessories, UL 464, and Standard for Speakers for Fire Alarm and Signaling Systems, Including Accessories, UL 1480.
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UL 1638
Original price was: $502.00.$251.00Current price is: $251.00.
Visible Signaling Devices for Fire Alarm and Signaling Systems, Including Accessories
Underwriters Laboratories , 01/28/2016
Visible Signaling Devices for Fire Alarm and Signaling Systems, Including Accessories
UL 1638
1 Scope
1.1 This standard applies to visual signaling devices 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 S525, Audible Signaling Devices for Fire Alarm and Signaling Systems, Including Accessories, CAN/ULC-S541, Speakers for Fire Alarm and Signaling Systems, Including Accessories, for requirements pertaining to audible devices and 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 These requirements cover visible signal devices for use in ordinary (non-hazardous) indoor locations and outdoor locations. This includes:
- a) Flashing visual devices used for fire alarm or emergency signaling in both public mode and private mode as defined in the glossary
- b) Emergency warning used to notify occupants that an emergency exists.
- c) Informative type visual signaling devices connected to or controlled by fire alarm or other emergency signaling system equipment, or both.
1.3 This standard also applies to protective covers and accessories used with visible signals.
1.4 This standard does not apply to visual signaling devices not intended for emergency signaling 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.
1.5 Visible 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, theNational Electrical Code, NFPA 70.
Note: In the United States, general signaling appliances are covered by UL 464A.
1.6 A supplementary audible signal, incorporated as part of a visible 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-S525, Audible Signaling Devices for Fire Alarm and Signaling Systems, Including Accessories, and CAN/ULC-S541, Speakers for Fire Alarm and Signaling Systems, Including Accessories,
- b) In the United States, Standard for Audible Signal Appliances for Fire Alarm and Signaling Systems, Including Accessories, UL 464, and Standard for Speakers for Fire Alarm and Signaling Systems, Including Accessories, UL 1480.
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UL 1638
Original price was: $287.50.$143.00Current price is: $143.00.
Visual Signaling Appliances-Private Mode Emergency and General Utility Signaling
Underwriters Laboratories , 04/11/2001
UL 1638
1 Scope
1.1 These requirements cover electrically-operated visual signaling appliances, rated 300 volts or less, and intended for indoor locations, outdoor locations, or both, in accordance with the following Standards of the National Fire Protection Association:
a) NFPA 70, National Electrical Code, and
b) NFPA 72, National Fire Alarm Code.
1.2 These requirements cover visual signaling appliances intended for:
a) Private mode fire or other emergency signaling where the appliance signals only those persons directly concerned with the implementation of emergency action. Refer to the National Fire Alarm Code, NFPA 72.
b) Informative type visual signaling appliances connected to or controlled by fire alarm or other emergency signaling system equipment, or both.
c) General non-emergency use. Requirements for light output, flash rate, and duration characteristics of such visual signaling appliances are not applicable.
1.2 revised November 7, 2003
1.3 When the appliance produces both a visual signal and an audible signal, the product shall also comply with the Standard for Audible Signal Appliances, UL 464; or the Standard for Speakers for Fire Protective Signaling Systems, UL 1480, as appropriate.
1.4 These requirements cover visual signaling appliances for use in ordinary locations. Visual signaling appliances for use in hazardous locations, as defined in the National Electrical Code, NFPA 70, are evaluated on the basis of their compliance with these requirements and further appropriate examination and tests to determine their acceptability for such use.
1.5 These requirements do not cover visual signaling appliances intended for the public operating mode as defined in the National Fire Alarm Code, NFPA 72. Public operating mode visual signaling appliances are covered under the Standard for Signaling Devices for the Hearing Impaired, UL 1971.
1.6 These requirements do not cover lamp or strobe-light assemblies intended for entertainment or room lighting.
1.7 These requirements do not cover annunciators that identify functions of a fire or emergency signaling system or relate information concerning portions thereof. Annunciators are covered under the Standard for Control Units for Fire-Protective Signaling Systems, UL 864.
1.8 Deleted May 7, 2003
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