Cable Fire Resistant Test Equipment IEC 60331
The Fire Resistance Tester for Electrical Cables is a precision laboratory assembly designed to evaluate the fire performance of power and network cables. The system reproduces high-temperature combustion conditions, exposing the cables to a hot gas environment at 750°C to determine their resistance to fire. This tester integrates a sample support frame, propane burner, control panel, temperature measurement devices, and K-type armored thermocouples to ensure accurate and repeatable testing results.
Application
(1) Testing the fire resistance of power distribution and network cables.
(2) Evaluating cables used in industrial, commercial, and residential wiring systems.
(3) Assessing the performance of cable insulation materials under high-temperature combustion conditions.
(4) Supporting cable development and quality control for fire safety compliance.
(5) Applicable for laboratories, certification centers, and cable manufacturers requiring adherence to international fire resistance standards.
Compliance Standards
The tester is designed and configured to meet the following standards:
CEI 20-36/1: Fire resistance testing for low-voltage electrical cables.
IEC 60331: Tests for electric cables under fire conditions to assess circuit integrity.
Technical Parameters
| Parameter | Specification |
|---|---|
| Sample Support | Stainless steel rod 110mm length × 10mm diameter, 2 support frames, 2 dual clamps, 2 clamps |
| Burner Type | Propane gas burner with 500mm nozzle, 3-row combustion holes, Venturi mixer, fixed support frame |
| Gas Flow Rate | 800 ml/min ±2% and 50 ml/min ±2% |
| Flame Safety | Piezoelectric ignition device |
| Pressure Range | 0 – 7.5 kPa (2 pressure gauges) |
| Flow Control | 2 control valves for gas and air |
| Temperature Measurement | K-type armored thermocouples (2 units), connected to computer and data recorder |
| Test Temperature | 750°C at hot gas outlet |
| Gas Supply | Propane and compressed air, minimum 3 bar |
| Data Collection | Thermocouples connected to data recorder for accurate logging |
FAQ
Q1: What type of cables can be tested?
A1: The tester supports all insulated metallic conductor cables used for power distribution or signal transmission.
Q2: What safety features does the system include?
A2: It includes flame safety devices, piezoelectric ignition, and precise flow control valves to ensure safe operation during high-temperature testing.
Q3: Can the system record real-time temperature?
A3: Yes, the armored K-type thermocouples connect to a computer or data logger for real-time monitoring and recording of temperature data.
Q4: What are the standard compliance benefits?
A4: Compliance with CEI 20-36/1 and IEC 60331 ensures that test results are internationally recognized and suitable for regulatory submissions and cable certification.
Q5: What is required for gas supply?
A5: Propane gas and compressed air are required, with a minimum pressure of 3 bar. Users must provide their own gas source and connections.
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