Bundle wire and cable burning test machine
Standards
According to IEC60332-3-10:2000.and GA306.1-2007
Main components
Testing chamber, electric control system, air source, ignition source flew control system (propane gas and air compressed gas), steel elevator, Fire extinguishing devices, emissions purification equipment (user option).
Application
Apply to evaluate suppression ability of spread of fire for bundles installed wires and cables ,under specified conditions.
Technical parameters
1. shape (overall space) size: 2500mm(length)*3200mm(width)*4500mm(height)
2. material: heat transfer coefficient of 0.7W∙m-2∙K-1 thermal insulation, that is, coated 65mm thick mineral fiber stainless steel plate
3. air source: control the gas flow through the box air is (5000±500) L/min, the test process can stabilize the air flow rate. A spraying device that forcibly stops burning after the test is completed
4. steel ladder type: width 500mm standard steel ladder width 800mm wide steel ladder
5. Discharge purification device: the test box has a collection and washing smoke device that does not change the air flow through the test box
6. ignition source: including one or two belt type propane gas burner and its supporting flow meter and venturi mixer. The fire supply surface shall be drilled with 242 flat metal plates with a diameter of 1.32mm aperture, with a center distance of 3.2mm and staggered in three rows of 81. 80 and 81 holes, respectively, distributed within a nominal size of 257×4.5mm. In addition, a row of small holes are opened on each side of the spout plate, and these guide holes can keep the flame burning steadily.
a) Each burner is equipped with a rotameter to accurately control the propane and air inflow rate.
b) Under the reference conditions of 100kPa and 20℃， the airflow rate of the test:
Air (77.7±4.8) L/min Propane (13.5±0.5) L/min
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