Manual Stations For Fire Alarm Systems, Including Accessories

Designation Number:
CAN/ULC S528
Standard Type:
National Standard of Canada - Domestic
Standard Development Activity:
Amendment Revision
ICS code(s):
13.220.20; 13.320
Status:
Proceeding to development
SDO Comment Period Start Date:
SDO Comment Period End Date:
Posted On:

Scope:

This Standard covers manual stations and their accessories for installation in ordinary locations, indoor and outdoor, for use in fire alarm systems.A manual station having a pre-wound signalling mechanism and equipped with a tripping electromagnet to permit automatic actuation by separate detectors, and similar combination devices, will be judged with respect to compliance with the applicable requirements for both manual stations and electrically actuated transmitters.This Standard does not cover municipal fire alarm boxes or electrically actuated transmitters.This standard also covers manual stations used for ancillary service, such as manual stations for the electrical release of extinguishing systems.

Project need:

The intention of this proposal is to bring ULC 528 in line with other ULC standards (UL 529, UL 531, etc.) that allow for an alternate 21 day mixed flowing gas corrosion test for indoor devices. This alternate MFG test is the result of research into corrosion mechanisms as they apply to electronic devices.

Note: The information provided above was obtained by the Standards Council of Canada (SCC) and is provided as part of a centralized, transparent notification system for new standards development. The system allows SCC-accredited Standards Development Organizations (SDOs), and members of the public, to be informed of new work in Canadian standards development, and allows SCC-accredited SDOs to identify and resolve potential duplication of standards and effort.

Individual SDOs are responsible for the content and accuracy of the information presented here. The text is presented in the language in which it was provided to SCC.