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Standard 1971, Edition 3

Standard for Signaling Devices for the Hearing Impaired

UL Bulletin
Standard 1971, Edition 3 Edition Date: August 08, 2014 $203.00-$254.00
Summary of Topics m0464_10_20140808_sum.html

Subject 464 1480 1638 1971 ULC-S500F

Bulletin Dated: August 8, 2014


The following topics were discussed at the joint meeting of the Standards Technical Panel for Signal Appliances, STP 464, ULC Committee on Fire Alarm and Life Safety Equipment and Systems, ULC Subcommittee on Audible and Visible Signal Devices, NEMA UL/ULC Technical Harmonization Committee:

1. Update from UL 1971 Task Group for Indirect Visual Notification

2. Indirect Notification of Strobes in Unconditioned Spaces

3. UL/ULC Harmonization Process

4. Overview on the NEMA UL/ULC Technical Harmonization Coordinating Committee

5. History of the Harmonization Effort for Notification Appliances

6. Ontario Building Code Changes

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