UL Standard | UL 217

Standard for Smoke Alarms

UL Standard

Scope

002170-000000-000000

1 Scope

1.1 These requirements cover electrically operated single and multiple station smoke alarms intended for open area protection in indoor locations and portable smoke alarms used as "travel" alarms in accordance with:

a) National Fire Alarm and Signaling Code, NFPA 72;
b) Standard for Recreational Vehicles, NFPA 501C, for smoke alarms intended for use in recreational vehicles;
c) For smoke alarms intended for use in recreational boats:
1. 1) Fire Protection Standard for Pleasure and Commercial Motor Craft, NFPA 302,
2. 2) AC and DC Electrical Systems on Boats, ABYC E-11, and
3. 3) The applicable regulations of the United States Coast Guard.

1.2 A single station smoke alarm (e.g. ionization-type, photoelectric-type, smoke alarm with supplementary heat detection type, combination smoke type, multi-criteria type), as defined by these requirements, is a self-contained fire alarm device that consists of an assembly of electrical components including a smoke sensor/ chamber, alarm sounding appliance, and provision for connection to a power supply source, either by splice leads, terminals, a cord and plug arrangement or containing integral batteries to detect one or more products of combustion. The products of combustion may consist of visible as well as invisible smoke particles, gases, heat, radiant energy, and water vapor. Additional functionality such as, a supplemental heat detector, terminals for connection to a remote audible signaling appliance (device) or accessory, and an integral transmitter to energize a remote audible signaling appliance (device) is permitted to be incorporated as part of the smoke alarm assembly.

1.3 Smoke alarms not intended for interconnection are defined as single-station type.

1.4 Multiple station units are single station smoke alarms that are:

a) Interconnected so that actuation of one results in alarm sounding by all interconnected smoke alarms, or
b) Smoke alarms that are connected to remote heat detectors or heat alarms.

1.5 These requirements, where applicable, also cover all remote accessories that are to be connected.

1.6 This standard does not cover the following:

a) Smoke detectors of the non-self-contained type that are intended for connection to a household or industrial system control unit. These are included in the Standard for Smoke Detectors for Fire Protective Signaling Systems, UL 268;
b) Mechanically operated single and multiple station fire alarm devices that are specified in the Standard for Single and Multiple Station Heat Alarms, UL 539;
c) Heat detectors – except for the requirements in the Fire Test – Smoke Alarm with Supplementary Heat Detection, Section 72, incorporated as part of a single station smoke alarm assembly whose requirements are covered in the Standard for Heat Detectors for Fire Alarm Signaling Systems, UL 521 or and/or when part of a multi-criteria smoke alarm.
d) An accessory that is provided with a means to transmit alarm signals to a constantly attended, remote monitoring location. Any accessory capable of transmitting these types of signals is covered by the requirements in the Standard for Household Fire-Warning System Units, UL 985 or;
e) A gas and vapor detector or sensor incorporated as a part of a smoke alarm assembly and covered by the Standard for Single and Multiple Station Carbon Monoxide Alarms, UL 2034, or except when part of a multi-criteria smoke alarm.

Summary of Topics

Summary of Topics s0217_9_sum.html

SUMMARY OF TOPICS

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 CO Gas 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 Field Test (for the smoke sensor)

- Addendum - Minimum Screening Programs in Table C3.1

- Removal of Lamp Interchangeability Requirements

Standard 217, Edition 9

Edition Date: January 02, 2020

ANSI Approved: January 02, 2020

$716.00-$1,567.00

Revisions
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May 07, 2021
February 26, 2021
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June 15, 2018
November 30, 2017

CSDS Proposal

CSDS Proposals

An electronic document associated with a UL Standard for Safety or Outline of Investigation, and issued by UL to propose:

A revision of a single or multiple requirement(s).
A complete new edition of an existing Standard or Outline.
A new Standard or Outline that has not previously been published.

CSDS Proposals provide access to view the proposal and submit comments within UL's Collaborative Standards Development System (CSDS) appropriately.

May 07, 2021

February 26, 2021

January 12, 2021

September 25, 2020

May 29, 2020

June 15, 2018

November 30, 2017

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April 20, 2020

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Reverse Referenced Standards (3)

UL 217 is referenced in the following list of UL Standards

Standard	Edition	Title
268A	4	Smoke Detectors for Duct Application
2034	4	Standard for Single and Multiple Station Carbon Monoxide Alarms
2305	1	Standard for Exhibition Display Units, Fabrication and Installation

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Standard for Smoke Alarms

Revisions and Related Documents

UL 217 is referenced in the following list of UL Standards

Standard for Smoke Alarms

1 Scope

SUMMARY OF TOPICS

Revisions and Related Documents

UL 217 is referenced in the following list of UL Standards

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