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CAN/CSA E61347-2-3-03 AMD1:2005 – Safety Requirements for A.C. Supplied Electronic Ballasts for Fluorescent Lamps
Understanding the Canadian Adoption of IEC 61347-2-3 Amendment 1 for Lamp Controlgear
CAN/CSA E61347-2-3-03 AMD1:2005 is the Canadian adoption of the international standard IEC 61347-2-3 (including Amendment 1), which specifies the safety requirements for a.c. supplied electronic ballasts for fluorescent lamps. This standard forms part of the IEC 61347 series for lamp controlgear and is harmonized with Canadian electrical code requirements. The amendment introduced updated temperature and fault conditions testing, clarifications on insulation coordination, and revised requirements for built-in protective devices.
Scope
CAN/CSA E61347-2-3-03 AMD1:2005 applies to electronic ballasts designed for operation from a.c. supplies up to 1,000 V at 50 Hz or 60 Hz, used with preheat, rapid start, or instant start fluorescent lamps. It covers ballasts for single- and double-capped fluorescent lamps as defined in IEC 60081 and IEC 60901. The standard includes requirements for:
- Protection against electric shock and thermal hazards
- Fault conditions and abnormal operation
- Construction, marking, and instructions
- Dielectric strength and insulation resistance
- End-of-life protection for lamps
This edition with amendment 1 supersedes the previous edition (CAN/CSA E61347-2-3-03) and includes updated test sequences for type testing, as well as revised temperature rise limits under normal and abnormal conditions.
Tip: Although this standard references IEC 61347-1 for general requirements, manufacturers should verify that the specific test conditions in Part 2-3 (such as the ballast’s rated ambient temperature and thermal cycling) are correctly applied during certification.
Technical Requirements
Electrical and Thermal Limits
The standard establishes maximum case temperatures under normal operation and during fault conditions, as well as dielectric withstand voltages. Table 1 summarizes the key test parameters:
| Parameter | Requirement (Amendment 1) | Test Condition |
|---|---|---|
| Dielectric strength (primary to ground) | 1,500 V rms (2,120 V peak) for 60 s | Twice rated voltage + 1,000 V |
| Creepage distance (basic insulation) | ≥ 3.2 mm (pollution degree 2) | According to IEC 60664-1 |
| Maximum case temperature (normal) | tc rating per ballast marking, max 90 °C typical | At rated mains voltage + 6 % |
| Maximum winding temperature (abnormal) | +30 K above tc for 5 min | Lamp removal or cathode failure |
| Minimum insulation resistance | ≥ 2 MΩ (after humidity conditioning) | 500 V DC test |
| Protection against electric shock | Discharge of capacitors: ≤ 2 μC after 60 s | Disconnection from supply |
Fault Condition Testing
Amendment 1 introduced additional fault conditions, including asymmetrical half‑bridge operation and repetitive ignition attempts. The ballast must remain safe (no fire, no electric shock) under any single fault, and the temperature of accessible surfaces must not exceed 105 °C during the fault.
Warning: Designers must ensure that the protection circuit operates faster than the thermal capacity of the components. The standard does not allow thermal fuses or PTCs that require resetting unless the ballast is marked accordingly.
Marking and Instructions
Each ballast must be marked with the tc rating, type of lamp(s), rated voltage/frequency, and the symbol for double insulation (Class II). Amendment 1 added a requirement to include the short‑circuit current rating (SCCR) when the ballast is intended for use in a branch circuit with a high available fault current.
Implementation Highlights
Manufacturers seeking CSA certification under this standard should pay attention to the following areas:
- Temperature cycling test: The amendment specifies a more stringent thermal cycling profile (e.g., 1,000 cycles with a dwell time of 30 minutes at tc + 10 K). This tests the long‑term reliability of solder joints and semiconductor packages.
- Capacitor discharge: For ballasts not fitted with a discharge resistor, the test for residual voltage is now mandatory even for rated power ≤ 250 VA.
- Humidity conditioning: A 48‑hour, 93 % RH / 40 °C damp heat test is required before measurement of insulation resistance.
- End‑of‑life protection: For fluorescent lamps, the ballast must either shut down or reduce power when the lamp fails (e.g., rectifying effect of a cathode). The amendment tightens the detection time to 30 s for such conditions.
Best Practice: When designing for compliance, simulate fault conditions early in the development phase using a worst‑case lamp model (e.g., a lamp with one broken cathode). This reduces costly re‑testing at the certification stage.
Compliance Notes
Compliance with CAN/CSA E61347-2-3-03 AMD1:2005 is a requirement for CSA certification of electronic ballasts sold in Canada. Key points for the compliance process include:
- Test laboratory: Testing must be performed by a CSA‑accredited laboratory (e.g., CSA Group, Intertek, UL). Type testing covers electrical, thermal, and abnormal operation.
- Documentation: The manufacturer must submit a complete Bill of Materials, PCB layout, insulation diagrams, and thermal test data.
- Factory inspections: CSA requires initial and periodic factory audits to ensure continuing conformity of production (e.g., traceability of tc ratings).
- Amendment vs. base standard: Because this standard includes Amendment 1 (2005), it supersedes the base edition; therefore any previous certification must be updated to address the new fault conditions.
Important: Failure to comply with the amendment’s SCCR marking requirement could result in rejection during a CSA product safety review. Ensure that the short‑circuit current rating is clearly stated on the product label or in the installation instructions.
Frequently Asked Questions
Q: What is the main difference between CAN/CSA E61347-2-3-03 and its amendment?
A: Amendment 1 (2005) introduced more detailed fault condition tests (e.g., asymmetrical half‑bridge operation), revised creepage distance values for basic insulation, added the requirement for short‑circuit current rating marking, and updated the thermal cycling test profile for electronic ballasts.
A: Amendment 1 (2005) introduced more detailed fault condition tests (e.g., asymmetrical half‑bridge operation), revised creepage distance values for basic insulation, added the requirement for short‑circuit current rating marking, and updated the thermal cycling test profile for electronic ballasts.
Q: Does this standard apply to LED drivers?
A: No, CAN/CSA E61347-2-3-03 AMD1:2005 is specific to electronic ballasts for fluorescent lamps. LED drivers are covered by CAN/CSA E61347-2-13 (IEC 61347-2-13). However, for hybrid applications (e.g., retrofit modules), both standards may apply depending on the lamp type.
A: No, CAN/CSA E61347-2-3-03 AMD1:2005 is specific to electronic ballasts for fluorescent lamps. LED drivers are covered by CAN/CSA E61347-2-13 (IEC 61347-2-13). However, for hybrid applications (e.g., retrofit modules), both standards may apply depending on the lamp type.
Q: Can a ballast meeting IEC 61347-2-3:2000 + Amd.1 be sold in Canada without further testing?
A: Usually the Canadian standard is technically identical to the IEC version, but CSA requires a certification mark (e.g., CSA or cUL) for compliance with Canadian deviations. Additional Canadian differences (e.g., supply voltage tolerances, ambient temperature ranges) are detailed in CAN/CSA E61347-2-3-03 AMD1:2005. A full test to the Canadian standard is normally required.
A: Usually the Canadian standard is technically identical to the IEC version, but CSA requires a certification mark (e.g., CSA or cUL) for compliance with Canadian deviations. Additional Canadian differences (e.g., supply voltage tolerances, ambient temperature ranges) are detailed in CAN/CSA E61347-2-3-03 AMD1:2005. A full test to the Canadian standard is normally required.
Q: Where can I obtain the official copy of this standard?
A: The official standard can be purchased from CSA Group (csagroup.org) or through authorized distributors such as Techstreet or IHS Markit. Always refer to the latest amendment to ensure compliance with current regulations.
A: The official standard can be purchased from CSA Group (csagroup.org) or through authorized distributors such as Techstreet or IHS Markit. Always refer to the latest amendment to ensure compliance with current regulations.
Article last updated: 2026. This information is provided for general reference and does not replace the official standard text. For certification decisions, refer to the latest published edition of CAN/CSA E61347-2-3-03 AMD1:2005.