Underwriters' Laboratories of Canada

SPEAKERS FOR FIRE ALARM SYSTEMS, INCLUDING ACCESSORIES - Thrid Edition
 N CAN/ULC-S541-07

Annotation

These requirements apply to speakers, rated at 300 V or less, for fireprotective signalling service and intended for indoor and/or outdoor installation in accordance with CSA C22.1 Canadian Electrical Code, Part I, Safety Standard for Electrical Installations; and CAN/ULC-S524, Installation of Fire Alarm Systems. Refer to CAN/ULC-S525, Audible Signal Devices for Fire Alarm Systems, Including Accessories, for requirements pertaining to audible signal devices.

These requirements apply to speakers for use in ordinary (non-hazardous or non-corrosive) indoor locations and outdoor locations.

Speakers for use in hazardous or corrosive locations shall comply with the requirements of this Standard and the applicable requirements of CSA C22.1, Canadian Electrical Code, Part I, Safety Standard for Electrical Installations, with respect to the location hazard.

Each product or device referred to as a speaker in this Standard is a speaker assembly suitable for separate installation as a component of a fire alarm system.

This Standard also covers protective covers and other accessories used with speakers for fire alarm systems.

A supplementary visual signal, incorporated as part of a speaker which is intended for fire alarm application, is covered by the applicable requirements in CAN/ULC-S526, Visible Signal Devices for Fire Alarm Systems, Including Accessories, in addition to the requirements of this Standard.

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