UL 217 Ed. 9-2020

Standard for Smoke Alarms

This new edition of ANSI/UL 217, includes the following: – Sensitivity Test Clarifications – Supervised Battery Clarifications – Mechanical Push Test for Push - Type Features – Combination of Requirements for Recreational Vehicles and Boats – New Firmware Requirements – Updated Polyurethane Foam and Cooking Nuisance Requirements(including new Go/No Go Flaming PU Test)  – Trouble Signal for Detached Low Frequency or Tactile Accessories – Revisions for High Voltage Printed Wiring Boards  – Additional Stability Tests for Multi-Criteria Smoke Detectors Employing COG as Sensors – Nuisance Sensor Requirements – Velocity Revisions – Manufacturer's Published Instructions – Smoke Alarm Activation – Strain Relief/Field Wiring Clarifications – Fire Test Clarifications – Paintbrush Marking  – Updated Go/No - Go FieldTest(for the smoke sensor) – Addendum  – Minimum Screening Programs in Table C3.1  – Removal of Lamp Interchangeability Requirements   The new and revised requirements are substantially in accordance with Proposal(s) on this subject dated June 28, 2019.