Cable and fiber optic cable line integrity combustion testing machine


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

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.

Parameters:

DescriptionDetails
Combustion chamber designThe combustion chamber is formed as a whole cube by fixing appropriate materials on angle iron supports.
Inner dimensions3m 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 holderThe sample is supported by two or three metal rings with an inner diameter of approximately 150mm.
Combustion device
- BurnerA band - type propane gas burner with a Venturi mixer, having a nominal length of 500mm and a width of 15mm.
- Flow metersAir flow meter: 80L/min; Propane flow meter: 5L/min.
- Burner control system componentsPressure - 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).
- TimerCan be set arbitrarily from 0 to 99.99s/m/h.
- Ignition deviceAutomatic ignition.
- Temperature controllerComposed of two temperature - monitoring sections, with a temperature range that can be set arbitrarily from 0 to 1000℃.
Circuit load
- Test transformersThree 3000VA transformers.
- Test voltageAC1000V.
- Test current3A.