IEC 60335-2-17 Blanket Spark Ignition Test Apparatus for Professional Testing

IEC 60335-2-17 Spark Ignition Test Apparatus | Compliant with Standard Certification

Product Overview: Professional Flame Retardancy Testing for Electric Blankets
This spark ignition test apparatus strictly complies with IEC 60335-2-17 Clause 30.101 requirements (Figures 113 & 113a), serving as core equipment for detecting the combustibility of flexible heating appliances (e.g., electric blankets, heating pads). It specifically verifies whether live parts pose fire risks due to arcing or overheating.

Reliable Testing Principle:
Samples are placed in a constant 65°C ±2°C heating chamber. A 10kV rated output voltage (sine wave) is applied, with the distance between samples and two Φ3mm copper electrodes precisely controlled at 6mm ±0.1mm. The instrument automatically records the time for flames to reach the template’s inner edge:

• If ignition occurs ≤3 seconds, the result is invalid.
• If no ignition occurs, the recorded time is 120 seconds.
  This method accurately evaluates product flame-retardant safety.

Core Technical Parameters

1. System Components:
   • Control Box: Integrates 10kV high-voltage power supply, test timing, and data recording.
   • Test Bracket: Manufactured strictly per IEC 60335-2-17 Fig 113 & 113a.
   • Heating Chamber (Optional): Provides a constant-temperature environment.
2. Test Bracket Details (Compliant with Fig 113 & 113a):
   • Materials: Stainless steel + insulation material + brass.
   • Adjustable Platform: 100×100mm, 0–100mm travel (insulation material).
   • Lower Template: Standard-sized hardwood.
   • Fixed Electrode: φ3mm, 45° conical tip (brass).
   • Upper Template: Standard-sized hardwood or aluminum alloy.
   • Terminals: Copper.
   • Movable Electrode: φ3mm cylinder, flat tip (brass).
   • Electrode Spacing Control: 6mm ±0.1mm (core parameter).
   • Base: Insulation material.
3. Control Box Functions:
   • High-Voltage Output: 0–15kV (voltage), 0–2mA (current); voltage drop <100V at 1mA short-circuit current.
   • Test Duration: 0–9999 seconds preset (precise control).
   • Ignition Time Recording: 0–9999 seconds high-precision timer (captures critical results).
4. Optional Naturally Ventilated Heating Chamber:
   • Temperature Range: 0–200°C preset, fluctuation ±1°C (stable).
   • Heating Duration: 0–99 hours 59 minutes 59 seconds preset.
   • Internal Dimensions: 450mm (L) × 450mm (W) × 500mm (H) (compatible with most samples).

Frequently Asked Questions (FAQ)

1. Q: What is this device used for?
   A: It tests whether flexible heating appliances (e.g., electric blankets, pads) ignite under electrical sparks at high temperatures, evaluating flame-retardant safety per IEC 60335-2-17.

2. Q: What are the test steps and criteria?
   A: Samples are exposed to 65°C ±2°C while 10kV sine-wave voltage is applied. Electrode-sample distance must be 6mm ±0.1mm. Record time for flames to reach the template’s inner edge:

   • ≤3 seconds: Invalid result (rapid ignition).
   • No ignition: Record as 120 seconds.
   • >3 seconds and ≤120 seconds: Valid recorded time .

3. Q: What are key technical parameters?
   A: Critical specs include:

   • Voltage: 0–15kV, current: 0–2mA (<100V drop at 1mA).
   • Electrode spacing: 6mm ±0.1mm.
   • Timing range: 0–9999 seconds.
   • Temperature (with chamber): 65°C ±2°C (or 0–200°C ±1°C).
   • Chamber size: 450×450×500mm.

4. Q: Is the heating chamber mandatory?
   A: Yes. IEC 60335-2-17 Clause 30.101 requires testing at 65°C ±2°C . The chamber ensures this critical condition.

5. Q: Can the control box and bracket operate independently?
   A: They form the core system for voltage application and timing. However, heating chamber integration is essential for IEC-compliant testing at 65°C.

6. Q: What defines the test bracket’s design?
   A: It strictly follows Fig 113 & 113a for electrode geometry, spacing mechanism, and insulation . Materials (stainless steel, brass, insulation) ensure durability.

7. Q: How is data recorded?
   A: The control box:

   • Presets test duration (0–9999 seconds).
   • Automatically logs ignition-to-template-edge time .

8. Q: Who uses this device?
   A: Primary users include:

   • Home appliance manufacturers (electric blankets/pads).
   • Third-party labs (IEC/EN 60335 compliance testing).
   • R&D departments (safety improvement) .