CAN/ULC-S529-02

1. Scope 1.1 This standard sets forth requirements for ionization-type and photoelectric-type detectors, rated at 300 V or less, to be employed in ordinary indoor locations in accordance with the following: A Standard for the Installation of Fire Alarm Systems, CAN/ULC-S524; B National Building Code of Canada; C National Fire Code of Canada. 1.2 A smoke detector (e.g. ionization-type, photoelectric type, and the like) as covered by this standard consist of an assembly of electrical components arranged to detect one or more products of combustion. The products of combustion may consist of gases, water vapour, and visible as well as invisible smoke particles. The detector includes provisions for the connection to a source of power, signalling, and optional remote control circuits. 1.3 This Standard covers the following types of detectors: A Detectors intended for open area protection, for connection to a compatible control unit for operation as part of a fire alarm system; B Detectors intended for control of releasing devices such as electromagnetic door holders, fire dampers, etc; and C Duct detectors. 1.4 This Standard does not cover the following: A Detectors for monitoring the smoke density within flues or stacks; B Power supplies and control units to which the detectors are intended to be connected. These are covered under the Standard for Control Units for Fire Alarm Systems, ULC-S527. 1.5 The manufacture, importation, distribution, and disposal of smoke detectors containing radioactive materials are subject to the safety requirements of the Canadian Nuclear Safety Commission. 1.6 Verification of the acceptance of such detectors by the regulating agency involved is required prior to the investigation of the detector to establish compliance with the requirements of this Standard.