ULC CAN/ULC-S526:2016-REV1 FOURTH EDITION Standard for Visible Signaling Devices for Fire Alarm and Signaling Systems, Including Accessories

This Standard covers 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.

The following changes have been incorporated into this edition of the Standard:

a) Addition of Visual Signal Pulse Width Marking, Clause 6.2;

b) Revisions to Clause 7.10, Abnormal Operation and Burnout Test, to resolve the

binational differences between Canada and the United States and to insert any missing

requirements that were accidentally omitted during the creation of the original binational

document;

c) Revisions to clarify the temperature conditioning requirements for indoor and outdoor

use appliances in Mechanical Strength Tests for Enclosures, Section 7.20;

d) Additional reference document changes and corrections to existing requirements in

CAN/ULC-S526.