Inhibit Vertical Flame Spread Wire And Cable Bundle Combustion
Tester
Application:
Used to evaluate the vertical installation of bundles of wire
cables or optical cables under specified conditions to inhibit the
vertical spread of flame.The whole machine is composed of test box,
air source, steel ladder, emission purification system and ignition
source.
Product description:
The machine is designed and manufactured according to standard
requirements such as GB12666.5, GB18380.3, UL1685, gb18380.31-2008,
IEC 60332-3-10:20 00, and used to evaluate the ability of
vertically installed bundles of wire and cable to inhibit the
vertical spread of flame.
Standards:
EN50399
IEC60332-3
UL1685
Unit:
1. Test box: the test device shall be a self-supporting box with a
width (1000 ± 100) mm, a depth (2000 ± 100) mm and a height (4000±
100) mm. 1.5mm thick USU304 stainless steel plate, 65mm thick
insulating mineral fiber in the middle, and 1.5mm thick USU304
stainless steel plate outside.
2. Air source:The air inlet is equipped with a digital air velocity
anemometer, and the air gas flow rate is (5000± 500) L/min.
After the test is completed: if the sample is still burning for an
hour after the fire is stopped, there is a warning device and a
forced stop device in the rain.
3. Steel ladder type: wide (500± 5) mm standard steel ladder width
(800± 10) mm wide steel ladder material is USU304 stainless steel
round steel
4. Discharge purification device:
A digital anemometer is installed on the upper part of the test box
to ensure that the velocity of wind is less than 8M/S and will not
affect the air flow in the test box.
Smoke collection and washing soot device: SUS304 stainless steel,
diameter 800mm height 3500mm.
Ignition source
1. Type: the ignition source shall include one or two propane gas
flamethrowers and their associated flow meters and venturi
mixer.The surface of the fire supply shall be a flat metal plate
drilled with 242 holes of 1.32mm diameter. The central distance of
these holes shall be 3.2mm and shall be staggered in three rows,
each row being 81, 80 and 81 respectively, distributed in the range
of the nominal size of 257 x 4.5mm.In addition, a row of holes is
arranged on both sides of the burner to keep the flame steady.Each
burner shall be fitted with an accurate device to control the rate
of propane and air inflow.Rotor flowmeter or mass flowmeter can be
used
2. The burner should be placed horizontally at the location of the
ignition source, with the distance from the front surface of the
cable sample (75± 5) mm, and the distance from the bottom of the
test box (600± 5) mm.The flame supply of the blowtorch shall be
located in the center between two rails of the steel ladder and at
least 500mm from the lower end of the sample.
Technical parameters:
1. The inner dimensions of the test box are 1,000 (W)
X2,000(D)X4,000 (H) mm, and the center filled with mineral wool
material box
2. There is an air intake space of 800(W)X400(D)mm at the bottom of
the box body from 150mm of the front wall.
3. Top exhaust space is 300(W)X1,000(D)mm.
4. Wide stainless steel ladder size: 500(W)X3,500(H), 1
5. Standard stainless steel ladder size 800(W)X3,500(H), 1
6. Two standard ribbon propane burners
7. Two venturi gas mixing devices
8. Pressure gauge and pressure reducing valve device can adjust
propane and air pressure to 0.1mpa
9. Adjust the rotor flowmeter and set the gas flow rate
10. The box body provides steel ladder and handrail, which is
convenient for users to check on the top
11. Equipped with ball valve to manually close the air source
12. Automatically set the combustion test time, when the air source
can be cut off
13. The inner wall thermocouple of the box can display the internal
temperature of the box
14. External dimensions of combustion chamber: 1120 (W)
X2195(D)X5077 (H) mm
15. Control box appearance size: 1280 (W) X770(D)X1200 (H) mm
16. Power supply: AC 220V, 50/60hz, 2A
17. Air source: propane, air (customer's own)
Smoke dedusting tower: it is mainly used in the experiment process
to produce the gas discharged through the smoke dedusting tower
after treatment in accordance with the environmental requirements.
Material: the whole body of the scrubber adopts PP material, and
there is no metal component in the system.
Circulating liquid layer: it can be filled with tap water or
washing-up liquid, which is more effective, in order to prevent the
disused washing tower from corroding the bottom.
Air layer: the waste gas that needs to be treated in the process of
production or experiment.
Filling layer: the filling material of the washing tower is a kind
of sea urchin ball made of PP material, which is shaped like
multi-tooth TELLERTT.The main function of the filling layer is to
disperse the waste gas in the air layer and make it disperse waste
gas so that the waste gas can be fully cleaned in the water spray
layer.
Water spraying layer: the sprinkler in the water spraying layer
adopts PP120 rotation non-blocking sprinkler head, covering 95%,
and the sprinkler layer has a separate window, so as to check the
working condition of the sprinkler head;
Anti-fogging layer: it can effectively filter the impurities in the
air and prevent the water mist crystals in waste gas from corroding
the inner wall of the scrubber tower.
Circulation pump: the circulation pump makes the liquid in the
circulation liquid layer recycle through the sprinkler head, saving
water.
Shape size: 1500(W) x 1000(D) x 3000(H)mm;
Power supply: AC 380V three-phase, 50/60hz, 10A.
Control system
1. Ignition control system
2. Collecting tower and smoke device
3. Gas flow control system
4. Smoke concentration measurement system
5. Temperature control system
6. Deferred combustion control
Test conditions: in a test box on top of the anemometer measured
external wind speed should be less than 8 m/s, the medial wall
temperature should be between 5 ºC and 40 ºC.The interior wall
thermometer is measured 1.5m above the bottom of the box, 50mm from
one side of the wall and 1.0m from the door.The test box door
should always be closed during the test.Test first as a sample of
cable or cable should be in (23 + / - 5 ºC temperature processing
at least 16 h, test cases should be dry.
Technical parameters:
| Working voltage | AC220 v 10% 50 hz. |
| Power consumption | 2KW |
| Thermostatic temperature | (20 ±5) ºC |
| Air flow | 0~30m3 /min adjustable |
| Combustion gas source | propane, liquefied petroleum gas (provided by the user) |
| Flow range | 2.2~25L/min?Flow accuracy: 0.5l /min |
| Timing accuracy | 0~120min adjustable |
| Measuring range of anemometer | 0~30m/s |
| Intelligent control, electronic ignition and automatic timing |
| Wind wheel anemometer |
| Gas flow control (with protective device) |
| Timing accuracy | ± 0.1s |
| Test box size | length x width x height (1.2 x 2.2 x 4) m |
| Temperature measurement device | digital thermometer, k-type temperature sensor |
| Total weight | 500Kg |
About daxian company
DAXIAN's testing equipment are widely used in various field:
scientific institutions, colleges, inspection institutions, auto
parts, electronics, electricals, LED, photoelectricity, mobile,
plasticand rubber, telecommunication, chemical industry, aerospace,
building material and product, wire and cable,textile and fabrix,
etc. All DAXIAN testing equipment are designed according to
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