Wire and Cable Bunched Burning Test Equipment (Mass Flow Controller)

Comply with GB18380.31-2022 "Combustion test of cables under flame conditions Part 3: Vertical installation of bunched wire and cable flame vertical spread test test device", equivalent to IEC60332-3-10:2000.

At the same time to meet the requirements of Table 4 of GB/T19666-2019 "General Principles of Flame Retardant and Refractory Wire and Cable" standard.

GB/T18380.32--2022/IEC60332--3--21: 2015 "Combustion test of electric cables and optical cables under flame conditions Part 32: Vertically installed bunched wire and cable flame vertical spread test AF/R category".

GB/T18380.33--2022/IEC60332--3--22: 2015 "Combustion test of electric cables and optical cables under flame conditions Part 33: Vertically installed bunched wire and cable flame vertical spread test category A".

GB/T18380.35--2022/IEC60332--3--24:2015 "Combustion test of electric cables and optical cables under flame conditions Part 35: Vertically installed bunched wire and cable flame vertical spread test category C",

GB/T18380.36--2022/IEC60332--3--25: 2015 "Combustion test of electric cables and optical cables under flame conditions Part 36: Vertical installed bundled wire and cable flame vertical spread test category D".

Technical Parameter

1.Working voltage: AC 220V±10% 50Hz,Power consumption: 2KW

2.The inlet and outlet air flow rate: 5000±200 L/min(adjustable)

3.Air flow and propane flow are controlled by mass flow control system.

4.Air source: propane (0.1Mpa), air (0.1Mpa), customer-owned air source.

5.Timing range: 0 ~ 60min(can be set)

6.Anemometer measurement range: 0 ~ 30m/s, measurement accuracy: ±0.2m/s

7.Test chamber dimension(mm): 2184(L) x 1156(W) x 5213(H)

Filled with mineral fire-resistant insulation rock wool material, top with 1500mm high safety guardrail.

8.2 combustion blowtorch heads with Venturi mixer

9.The air inlet fan is a low-noise vortex fan. The PLC controls the fan speed through the frequency converter, and the vortex flowmeter measures the air volume to achieve precise air inlet volume control.

10.The induced draft fan adopts 4-72 anti-corrosion fan with an air volume of 5000m²/h.

11.Flue gas post-treatment is equipped with a water spray dust removal tower with a processing air volume of 5000 m²/h

12.Both nitrogen fire extinguishing and water spray fire extinguishing methods are equipped for customers to choose.

13.For testing:

Vertical standard steel ladder dimension(mm): 500(W) x 3500(H)

Vertical wide steel ladder dimension(mm): 800(W) x 3500(H)

14.Combustion surface dimension(mm): 257(L) x 4.5(W)

15.Touch screen control, intuitive and clear, electronic ignition, automatic timing.

16.The burner is controlled by PLC and operated by touch screen.

Test Device

Test box: The experimental device should be a self-standing box with a width of 1000mm, a depth of 2000mm and a height of 4000mm. The bottom of the box should be 300mm above the ground. The perimeter of the test chamber should be sealed, the air from the bottom of the chamber from the front wall (150±10) mm to open a (800±20) mm x (400±10) mm air inlet into the box. A (300±30) mm x (1000±100) mm outlet should be opened at the back of the top of the chamber. Test chamber should be used on both sides of the heat transfer coefficient of about 0.7W.m-2.K-1 thermal insulation, the distance between the steel ladder and the back wall of the test chamber is (150±10) mm, and the bottom rung of the steel ladder is (400±5) mm from the ground. The lowest point of the cable sample is about 100mm from the ground
Emission Purification Device
Smoke collection and washing soot device: PP material, with a diameter of 1500mm and a height of 3500mm. The smoke collection tower is divided into three parts: spray device, smoke and dust filter device, and smoke exhaust device. Spray device: to provide water spray for special filter materials, to keep the special filter materials to filter smoke and dust effectively. Smoke and dust filter device: Filtered by drinking water filter material, which can effectively filter smoke and dust so that the smoke emitted is white smoke. Customers add environmental protection equipment according to the situation.

Ignition Source

1.Ignition source type: including one or two band-type propane gas blowtorches and their matching flowmeters and Venturi mixers. The ignition surface is drilled with 242 flat metal plates with a diameter of 1.32mm. The center distance of these holes is 3.2mm, arranged in three rows in a staggered arrangement, each row is 81, 80 and 81, distributed in the nominal size is 257×4.5mm. In addition, a row of small holes are opened on both sides of the flame board, and this guide hole can maintain the stable combustion of the flame.
2.Ignition source location: The torch should be placed horizontally, (75±5) mm from the front surface of the cable sample, (600±5) mm from the bottom of the test chamber, and symmetrical to the axis of the steel ladder. The flame supply point of the blowtorch should be located in the center between the two crossbeams of the steel ladder, and at least 500mm away from the lower end of the sample. The center line of the blowtorch system should be approximately the same as the center line of the steel ladder.

Mass Flow Controller

Mass flow controller technical parameters:

1.Accuracy: ±2% F.S

2.Linearity:±1% F.S

3.Repeat accuracy:±0.2% F.S

4.Response time:1 ~ 4 sec

5.Pressure resistance: 3 Mpa

6.Working environment:5 ~ 45ºC

7.Input model: 0-+5v