Bunched Cable Combustion Testing Equipment For Flammability Test
Wire and cable tester is a test equipment which is used to evaluate
the ability of vertical installation of wire and cable or optical
cable under the condition of specified conditions. Meet
18380.31-2008 GB/T standard test. This instrument can be used to
test the vertical flame spread to the vertical flame vertical cable
and wire state when the box is supplied with a certain amount of
gas and the ignition is used.
1, the seal test box; width (1000 + 100) mm, deep (2000 + 100) mm
and (4000 + 100) mm independent body, from the bottom from the
front wall (150 + 10) mm, open (800 + 20) mmX (400 + 10) mm air
inlet. Behind the box at the top of a (300 + 30) * mm (1000 + 100)
2, adiabatic protection:
The test box of the back wall and both sides are made of 1.5mm
thick SUS 304 stainless steel plate, insulating mineral fiber
intermediate coating thickness of 65mm, 0.7W/, K square meters of
insulation coefficient. Between the ladder and test box wall
distance (150 + 10) mm, the below ground ladder rungs (400 + 5) mm.
The minimum distance of the cable specimen is about 100mm.
3, steel structure:
Standard ladder width (500 + 5) mm and wide type ladder, wide (800
+ 10) mm; made of SUS304 stainless steel;
4, control system:
Control cabinet for 19 inch standard cabinet: 17 inch touch control
computer display, control, storage of experimental data, the
computer automatically records all control and test conditions.
5, air source:
The air inlet is equipped with a digital display, which can be read
directly and can control the gas flow through the air of the box
(5000 + 500) L/min, which can stably control the air flow rate in
the test process.
6, fire protection:
1 hours of burning test time and remind function, and equipped with
nitrogen gas fire or spray extinguishing device.
7, test conditions measuring device:
The upper part of the test box is equipped with a digital display,
which ensures that the wind speed is less than 8M/S, which will not
affect the air flow in the test chamber.
8, ignition source:
Ignition source should include one or two propane gas burner and
its supporting belt type flowmeter (MFC mass flow controller) and
Venturi mixer (import). The fire for the surface shall be drilled
with 242 diameter flat metal plate, the diameter of 1.32mm and
plate on both sides of the open fire in a row of holes, the guide
to Kong Kebao, stable combustion flame.
Mass flowmeter automatically and accurately control the flow rate
of propane and air. Air: 77.7 + 4.8 L/min; propane 13.5 + 0.5 L/min
Provide the corresponding use standard blowtorch ladders and
ladders and wide
9, ignition source location:
Blowtorch should be placed horizontally, from the front surface of
cable sample (75 + 5) mm, from the test at the bottom of the box
(600 + 5) mm, and the axis of symmetry and ladders. The torch for
the fire point should be located between the two ladder rungs, and
from the lower end of at least 500mm
3.10, safety gas control system:
The gas supply system is equipped with tempering limiter
Automatic flameout protection device.
PLC + MFC to achieve automatic control of ignition and extinction
of propane and air supply sequence.
Precision control of air inlet velocity with adjustable speed
blower and wind speed meter.
Automatic ignition time control and ignition stop reminding device.
Parameter detection capability:
1, 1 hours of burning test time and remind function.
2, air and propane flow monitoring and control.
3, laboratory temperature measurement.
4, the upper end of the test case wind speed measurement.
5, test time.