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CAN/ULC 552:2024 Standard for Inspection, Testing and Maintenance of Smoke Alarms
ULC CAN/ULC 552:2024 Standard for Inspection, Testing and Maintenance of Smoke Alarms
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Description
PREFACE
This is the Second Edition of the Standard for Inspection, Testing and Maintenance of Smoke Alarms, CAN/ULC 552.
This Edition of the Standard has been formally approved by the ULC Standards Committee on Installation, Inspection and Verification of Fire Alarm Systems.
This Standard has been developed in compliance with the requirements of SCC for accreditation of a Standards Development Organization.
Only metric SI units of measurement are used in this Standard. If a value for measurement is followed by a value in other units in parentheses, the second value may be approximate. The first stated value is the requirement.
Annexes A, B, C, and D, identified as informative, are for informational purposes only.
In Canada, there are two official languages, English and French. All safety warnings must be in French and English. Attention is drawn to the possibility that some Canadian authorities may require additional markings and/or installation instructions to be in both official languages.
This Second Edition National Standard of Canada was based on, and now supersedes, the First Edition.
Attention is drawn to the possibility that some of the elements of this Canadian standard may be the subject of patent rights. ULC Standards shall not be held responsible for identifying any or all such patent rights.
Requests for interpretation of this Standard should be sent to ULC Standards. The requests should be worded in such a manner as to permit a “yes” or “no” answer based on the literal text of the requirement concerned.
This CAN/ULC 552 Standard is under continuous maintenance, whereby each revision is approved in compliance with the requirements of SCC for accreditation of a Standards Development Organization. In the event that no revisions are issued for a period of four years from the date of publication, action to revise, reaffirm, or withdraw the standard shall be initiated.
Comments or proposals for revisions on any part of the Standard may be submitted at any time. Proposals should be submitted via a Proposal Request in the Collaborative Standards Development System (CSDS) at https://csds.ul.com.
This Standard is intended to be used for conformity assessment.
SCOPE
1.1 This Standard applies to the inspection, testing and maintenance of smoke alarms within dwelling units as well as within sleeping rooms / areas that are not part of dwelling units. (Refer to Annex A,
Explanatory Materials, Clause A1.1 and Annex B, Enhancement of Fire Safety in Residential
Occupancies.)
1.2 Requirements for the installation of smoke alarms are referenced in CAN/ULC 553, Standard for the Installation of Smoke Alarms.
1.3 This Standard does not cover systems incorporating residential fire warning systems. Requirements for these systems are referenced in CAN/ULC-S540, Standard for Residential Fire and Life Safety Warning Systems: Installation, Inspection, Testing and Maintenance. (Refer to Annex A, Explanatory Materials, Clause A1.3, Possible Installation Scenarios, and Annex D, Smoke Detector with Sounder Base)
PREFACE
This is the Second Edition of the Standard for Inspection, Testing and Maintenance of Smoke Alarms, CAN/ULC 552.
This Edition of the Standard has been formally approved by the ULC Standards Committee on Installation, Inspection and Verification of Fire Alarm Systems.
This Standard has been developed in compliance with the requirements of SCC for accreditation of a Standards Development Organization.
Only metric SI units of measurement are used in this Standard. If a value for measurement is followed by a value in other units in parentheses, the second value may be approximate. The first stated value is the requirement.
Annexes A, B, C, and D, identified as informative, are for informational purposes only.
In Canada, there are two official languages, English and French. All safety warnings must be in French and English. Attention is drawn to the possibility that some Canadian authorities may require additional markings and/or installation instructions to be in both official languages.
This Second Edition National Standard of Canada was based on, and now supersedes, the First Edition.
Attention is drawn to the possibility that some of the elements of this Canadian standard may be the subject of patent rights. ULC Standards shall not be held responsible for identifying any or all such patent rights.
Requests for interpretation of this Standard should be sent to ULC Standards. The requests should be worded in such a manner as to permit a “yes” or “no” answer based on the literal text of the requirement concerned.
This CAN/ULC 552 Standard is under continuous maintenance, whereby each revision is approved in compliance with the requirements of SCC for accreditation of a Standards Development Organization. In the event that no revisions are issued for a period of four years from the date of publication, action to revise, reaffirm, or withdraw the standard shall be initiated.
Comments or proposals for revisions on any part of the Standard may be submitted at any time. Proposals should be submitted via a Proposal Request in the Collaborative Standards Development System (CSDS) at https://csds.ul.com.
This Standard is intended to be used for conformity assessment.
SCOPE
1.1 This Standard applies to the inspection, testing and maintenance of smoke alarms within dwelling units as well as within sleeping rooms / areas that are not part of dwelling units. (Refer to Annex A,
Explanatory Materials, Clause A1.1 and Annex B, Enhancement of Fire Safety in Residential
Occupancies.)
1.2 Requirements for the installation of smoke alarms are referenced in CAN/ULC 553, Standard for the Installation of Smoke Alarms.
1.3 This Standard does not cover systems incorporating residential fire warning systems. Requirements for these systems are referenced in CAN/ULC-S540, Standard for Residential Fire and Life Safety Warning Systems: Installation, Inspection, Testing and Maintenance. (Refer to Annex A, Explanatory Materials, Clause A1.3, Possible Installation Scenarios, and Annex D, Smoke Detector with Sounder Base)