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CSA C22.2 No. 73-1953 (2013): Safety Requirements for Portable Luminaires
A comprehensive look at the scope, technical specifications, and compliance framework for portable luminaires under the Canadian Electrical Code, Part II
CSA C22.2 No. 73-1953 (2013), titled Portable Luminaires, is a harmonized standard under the Canadian Electrical Code, Part II (CSA C22.2 series). First published in 1953 and reaffirmed in 2013, it establishes minimum safety requirements for cord-connected portable luminaires intended for use on nominal supply voltages up to 250 V. This article examines the scope, key technical provisions, and compliance pathways for manufacturers seeking to certify portable luminaires for distribution in Canada.
Scope and Application
CSA C22.2 No. 73 applies to portable electric luminaires (commonly called lamps) that are connected to a branch circuit by means of a flexible cord and plug. These include desk lamps, floor lamps, torchiere lamps, accent lights, and other movable lighting fixtures. The standard covers luminaires equipped with incandescent, fluorescent, or other discharge lamp types, as well as those containing integrated switches, dimmers, or electronic control gear.
The following are specifically excluded from the scope:
- Pendant or ceiling-mounted luminaires (covered by CSA C22.2 No. 250 series)
- Luminaires for use in wet or hazardous locations (covered by other CSA standards)
- Portable hand-lamps (CSA C22.2 No. 51)
- Child-appealing or novelty luminaires (subject to additional requirements)
Tip: Even though the original edition dates to 1953, the 2013 reaffirmation includes editorial updates and references to modern test methods. Manufacturers should always use the latest edition of the standard as referenced by the applicable regulatory authority.
Technical Requirements
The standard prescribes construction, performance, and marking requirements. Key technical areas are summarized below.
Electrical Ratings and Marking
Every luminaire must be marked with its electrical rating (voltage, current, wattage, or lamp type), together with the manufacturer’s name or trademark, and a CSA certification mark. Additional marking for outdoor use, polarity, or special lamp types is required where applicable.
Construction Specifications
- Wiring: Internal wiring must be at least 105 °C rated, and supply cords must be Type SPT, SVT, or equivalent, with minimum cross-section 0.5 mm² (20 AWG) for 120 V circuits.
- Polarity: For luminaires with screw-shell lamp holders, the screw shell must be connected to the identified (neutral) conductor unless a two‑pole switch disconnects both conductors.
- Strain Relief: The cord entry must incorporate a clamping device that passes a 35 N pull test and a 0.13 N·m torque test without displacement of the internal connections.
- Stability: Floor and table luminaires must not tip over when tilted to an angle of 15° from the vertical in any direction.
Temperature Limits
To prevent fire and burn hazards, temperature rise tests are conducted with the maximum rated lamp. Limits are applied to accessible surfaces, insulation, and internal components. Representative limits from the standard are shown in the table below.
| Component or Surface | Maximum Temperature Rise (°C) above 25 °C ambient |
|---|---|
| Accessible metal surfaces (user contact) | 60 |
| Accessible non-metallic surfaces | 75 |
| Internal wiring insulation (rated 105 °C) | 65 |
| Switch terminals | 50 |
| Lamp holder bodies | 90 |
Grounding
Luminaires with grounded (metallic) enclosures and those employing double insulation must be constructed so that there is no electrical continuity between live parts and accessible conductive parts. Three‑wire cords are required for luminaires that rely on grounding for safety.
Warning: If a luminaire incorporates a lamp that is not user‑replaceable, the construction must prevent access to live parts without permanent deformation. This is particularly relevant for integrated‑LED designs.
Compliance and Certification
In Canada, CSA C22.2 No. 73 is cited by many provincial and territorial electrical safety regulations. Portable luminaires offered for sale must be certified by an accredited certification body (e.g., CSA Group, UL, Intertek) and bear the appropriate certification mark.
Certification Process
- Application and sample submission – Complete product description, bill of materials, and wiring diagrams.
- Testing – Tests cover dielectric strength, leakage current, temperature rise, strain relief, stability, abrasion, and marking permanence.
- Factory inspection – Initial and periodic follow‑up inspections to ensure continued conformity.
- Authorization to use the mark – Upon successful completion, the manufacturer receives a license.
Success: Many of the test methods in CSA C22.2 No. 73 are harmonized with UL 153 (Portable Electric Luminaires) to facilitate dual‑listing for Canada and the United States.
Critical: Failure to meet the stability or temperature requirements is a common cause of certification failure. Designers should incorporate margin during the prototyping phase to account for variations in production.
Implementation Considerations
When designing a portable luminaire for compliance with CSA C22.2 No. 73, keep the following points in mind:
- Material selection: Use materials with suitable flammability ratings (e.g., V‑2 or better for plastic enclosures) and temperature indexes matching the expected internal temperatures.
- Power supply cords: Verify that the cord composition and jacket thickness meet Canadian requirements (e.g., minimum 0.5 mm², appropriate temperature rating).
- Documentation: Maintain detailed records of all design calculations, test results, and drawings as required by the certification body.
- LED luminaires: Although the 1953 edition originally covered incandescent sources, the 2013 reaffirmation is interpreted to include non‑replaceable LED lamps. Pay attention to thermal management and electrical insulation for integrated LED modules.
Frequently Asked Questions
Q: Is CSA C22.2 No. 73-1953 (2013) still active?
A: Yes, it is reaffirmed as of 2013 and is referenced by the Canadian Electrical Code and provincial regulations. However, the standard is currently under review for a new edition to reflect modern technologies; manufacturers should monitor updates from the CSA Group.
A: Yes, it is reaffirmed as of 2013 and is referenced by the Canadian Electrical Code and provincial regulations. However, the standard is currently under review for a new edition to reflect modern technologies; manufacturers should monitor updates from the CSA Group.
Q: How does this standard relate to UL 153?
A: CSA C22.2 No. 73 and UL 153 are substantially harmonized. Differences exist in cord specifications, marking language (English/French), and certain test criteria (e.g., strain‑relief torque values). Products listed to both standards are common for cross‑border trade.
A: CSA C22.2 No. 73 and UL 153 are substantially harmonized. Differences exist in cord specifications, marking language (English/French), and certain test criteria (e.g., strain‑relief torque values). Products listed to both standards are common for cross‑border trade.
Q: Does the standard cover battery‑operated portable lights?
A: No. CSA C22.2 No. 73 is limited to cord‑connected luminaires operating from the mains supply. Rechargeable cordless lamps are covered by other standards (e.g., CSA C22.2 No. 62471 for photobiological safety, or CSA C22.2 No. 250 series for luminaires with battery backup).
A: No. CSA C22.2 No. 73 is limited to cord‑connected luminaires operating from the mains supply. Rechargeable cordless lamps are covered by other standards (e.g., CSA C22.2 No. 62471 for photobiological safety, or CSA C22.2 No. 250 series for luminaires with battery backup).
Q: Can I use a European plug on a luminaire certified to this standard?
A: The standard requires a supply cord with a plug that complies with Canadian requirements (CSA C22.2 No. 42 for attachment plugs). European plugs (e.g., Type C, F) are not acceptable unless specifically approved for use in Canada.
A: The standard requires a supply cord with a plug that complies with Canadian requirements (CSA C22.2 No. 42 for attachment plugs). European plugs (e.g., Type C, F) are not acceptable unless specifically approved for use in Canada.
© 2026. This article is for informational purposes only and does not constitute legal or regulatory advice. Always consult the current edition of the standard and your certification body for complete requirements.