Cable Integrity Combustion Testing Machine
Category：Flammability Tester
Introduction
The Cable and Fiber Optic Cable Line Integrity Combustion Testing Machine is designed to evaluate the fire resistance and circuit integrity of cables and optical fibers under extreme flame conditions. It provides precise control over flame temperature, real-time monitoring, and modular testing capabilities, ensuring accurate compliance with international fire safety standards.
Application
This device is used for testing cables and optical fibers that are required to maintain circuit integrity when subjected to a flame with a temperature of at least 750°C (with controlled heat output) during a separate fire test.
Standard
GB/T19216.21-2003：Tests for electric cables under fire conditions – Circuit integrity – Part 21: Procedures and requirements – Cables of rated voltage up to and including 0.6/1.0 kV
IEC60331-21：Tests for electric cables under fire conditions – Circuit integrity – Part 21: Procedures and requirements – Cables of rated voltage up to and including 0.6/1.0 kV
GB/T19216.23-2003：Tests for electric cables under fire conditions – Circuit integrity – Part 23: Procedures and requirements – Electric data cables
IEC60331-23：Tests for electric cables under fire conditions – Circuit integrity – Part 23: Procedures and requirements – Electric data cables
GB/T19216.25-2003：Tests for electric cables under fire conditions – Circuit integrity – Part 25: Procedures and requirements – Optical fibre cables
IEC60331-25：Tests for electric cables under fire conditions – Circuit integrity – Part 25: Procedures and requirements – Optical fibre cables
Parameters:
| Description | Details |
|---|---|
| Combustion chamber design | The combustion chamber is formed as a whole cube by fixing appropriate materials on angle iron supports. |
| Inner dimensions | 3m x 3m x 3m, totaling 27 cubic meters. It can be either a brick – wall structure or a steel – plate structure, subject to customer choice. |
| Sample holder | The sample is supported by two or three metal rings with an inner diameter of approximately 150mm. |
| Combustion device | |
| – Burner | A band – type propane gas burner with a Venturi mixer, having a nominal length of 500mm and a width of 15mm. |
| – Flow meters | Air flow meter: 80L/min; Propane flow meter: 5L/min. |
| – Burner control system components | Pressure – regulating valve, piezoelectric igniter, flame – out device, temperature – controlling thermocouple, gas source (to be provided by your company), regulating valve, ignition device, gas pipeline, flow meter, Venturi mixer, burner, ball valve, air pipeline, compressed air cylinder (to be provided by your company). |
| – Timer | Can be set arbitrarily from 0 to 99.99s/m/h. |
| – Ignition device | Automatic ignition. |
| – Temperature controller | Composed of two temperature – monitoring sections, with a temperature range that can be set arbitrarily from 0 to 1000℃. |
| Circuit load | |
| – Test transformers | Three 3000VA transformers. |
| – Test voltage | AC1000V. |
| – Test current | 3A. |
Feature
Modular Design: The equipment features a modular combustion chamber design, equipped with a Venturi mixing burner and a gas fuel system. Flame temperature is precisely controlled via dual flow meters.
Multiple Test Modes: The equipment supports fire resistance performance verification of AC 1000V/3A lines and can simulate complex environments such as vibration and water spray.
Real-time Monitoring: The equipment provides quantitative data for cable fire resistance performance evaluation by real-time monitoring of the current on/off status of the cables.
Standard Compliance: The equipment complies with GB/T19216 and IEC60331 series standards, ensuring the scientific accuracy and reliability of the tests.
High-Efficiency Combustion Device: The equipment utilizes a ribbon-type propane burner with staggered nozzle arrangement and a sophisticated design to meet the testing needs of samples with different wire diameters.
Accessoriess
One main unit;
One set each of GB/T19216.11 and GB/T19216.12 testing devices;
Safety measures configuration including high-pressure and gas supply systems;
One set of verification device with a heat source.
Test Procedures
Equipment Startup: Start the cable combustion testing machine correctly according to the equipment’s operating manual, ensuring all parameters are set correctly and performing any necessary preheating.
Sample Installation: Install the prepared cable sample onto the sample holder of the testing machine.
Test Parameter Setting: Set the test parameters according to the test requirements, including burning time, burning temperature, oxygen concentration, etc.
Test Operation: Start the test and record the test parameters, the burning behavior of the sample, and other relevant data.
Data Analysis: Analyze the data based on the test results to evaluate the cable’s combustion performance.
FAQ
1. What is this product?
A testing instrument for evaluating fire resistance and circuit integrity of cables and optical fibers.
2. What is this product used for?
To verify that cables and optical fibers maintain electrical continuity under flame exposure.
3. What is the working principle of this product?
The sample is exposed to a controlled flame in a modular combustion chamber while the current is monitored; parameters like temperature and burn duration are recorded automatically.
4. Why is this product important?
It ensures that critical cables maintain functionality during fire incidents, reducing risk of system failure and enhancing safety.
5. What industries is this product suitable for?
Telecommunications, energy transmission, industrial installations, and fire safety laboratories.
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