Product Details
Vertical Flame Tester
Brief Introduction
The ZONSKY Vertical Flame Tester provides automated, highly accurate testing to determine how wire insulation behaves when exposed to fire.
Highlights / Outstanding Features / Characteristics
- Critical Safety Metrics: Accurately measures ignition time, flame spread rate, and self-extinguishing capabilities.
- Fully Automated Operation: Streamlines your workflow by automatically tracking burning times, extinguishing times, and repetitive test cycles.
- Targeted Application: Engineered specifically to verify the flame resistance of wire and cable insulation materials.
- Efficiency Boosted: Designed to deliver fast, highly repeatable data while minimizing manual operator error.
Description
In compliance with:
- UL 1581-2016 Section 1061 – Vertical Burning Test of Wires
- UL 1581-2016 Section 1090 – Horizontal Burning Test of Equipment Wires
- UL 2556-2015
Technical parameters
| Parameter | Specification |
|---|---|
| Vertical Combustion Box | UL1581 standard size, internal dimensions: 305 × 355 × 610 mm |
| Horizontal Combustion Box | UL1581 standard size, internal dimensions: 305 × 355 × 610 mm |
| Vertical Spark Nozzle | 20° angle, equipped with gas control valve |
| Horizontal Spark Nozzle | 90° angle, equipped with gas control valve |
| Nozzle Selection | Supports vertical and horizontal testing modes |
| Operation Mode | Manual and automatic mode selection |
| Automatic Stop Function | Stops automatically when the preset time is reached |
| Fuel Type | Methane gas (provided by the customer) |
| Test Length | 300 mm (horizontal), 457 mm (vertical) |
Test method
Vertical Test: The specimen is placed on top of the flame, burned for 15 seconds, extinguished for 15 seconds, and repeated five times to assess burning conditions.





