wire and cable heat release test equipment

HH6260 wire cable heat release tester

Scope of application:

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Suitable for fire hazard assessment of cable and cable

Control system:

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Windows xp operating interface, LabVIEW style, perfect security mechanism. During the test, the measurement results are displayed in real time and the perfect curve is plotted dynamically. The data can be saved, read and printed on a permanent basis, and the report can be printed directly.

The equipment has the following safety protection devices: power overload, short circuit protection and overload protection of control circuit.

Meet the standard:

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GA/t716-2007 test methods for flame propagation and thermal release and smoking characteristics of cable and optical cable under fire conditions. Comply with GA/t716-2007, IEC 60332-3/EN50399 experimental standard.

Main features:

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Equipment structure:

The exhaust outlet of the combustion box is set at the top of the cabinet, which can effectively discharge the exhaust gas evenly, and a number of inlet holes are provided on the bottom to ensure the oxygen content of the tank in the test process.

The front door of the burning box is installed. The door is equipped with a tempered glass window, which can observe the indoor test situation at any time. During the test, the gate is sealed to prevent the harmful material from burning.

Air purification system: this system is divided into sprinkler system, smoke filter device, smoke exhaust device. Sprinkler installation: to provide water spray for special filtration materials to keep the filter material effectively filtering dust. Smoke filter device: filter material by drinking water filter, can effectively filter smoke and smoke to make the smoke white smoke, comply with environmental protection requirements. Can be manually cleaned and replaced and equipped with two sets. Smoke venting device: a fan with high power, and a flow rate that can control the wind.

Component materials and functions:

Case size: L1000*W2000*H4000 (mm).

Purification system size: 750 * 3500 ￠(mm).

Air purification system material: the combustion chamber adopts the quality (t=1.2mm)304 non-steel plate, NC machine tool processing and forming, the arc shape is beautiful and generous. Double partition design, the wall thickness reaches 65mm, and the insulation layer is filled with high temperature cotton. Effectively control the temperature of the outer wall.

Control box: the control box adopts 304 stainless steel plate, CNC machine tool processing and forming, the arc shape is beautiful.

Air purification system: this system adopts high quality (t=1.2mm)304 non-steel plate, CNC machine tool processing and forming, circular arc shape beautiful and generous, multi-layer design.

Spray lamp: the quality is used in SUS304 stainless steel, anti-corrosion anti-rust. There are 242 diameter 1.32mm pore diameter for fire surface drill, and the center distance of these holes is 3.2 mm, which is divided into three rows, 81, 80 and 81 respectively, which are distributed in the range of the nominal size of 257 x 4.5mm. In addition, a row of holes are opened on both sides of the fire board, which can keep the flame stable and burning.

Main parameters:

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The instrument is mainly composed of the combustion chamber, air supply system, standard ladder, ignition source, sensor and sensor pipe section, smoke density optical test system, gas analyzer software, data acquisition and processing system, computer control system, combustion gas control system and ventilation system and other parts.

Differential pressure transmitter: capacitance, precision plus or minus 5Pa, range of 0 ~ 200Pa

Oxygen measurement: range 0-25%; Signal output: 4-20ma

Carbon dioxide measurements: range of measurement: 0-6%; Deviation: < 1

Exhaust fan: 2.0 m3 / min

Light source: consists of a 6V,10W incandescent lamp, a transformer with power supply (input 220V output 6V), and a variable resistor.

Optical window adder: AC220V power supply, 9W resistance wire is surrounded, to ensure the surface temperature of the light window (50oC ~ 55oC) is appropriate.

Convex lens: 40mm in diameter and 50mm in focal length.

Photoelectric detector: it consists of photomultiplier tube, amplifying filter, optical brake, filter, neutral filter, convex lens, optical window, etc.

Parameters of photomultiplier tube: voltage: DC1000V, power supply: input 12V, output 0 ~ -1200v2ma

Photoelectric system processing: photoelectric detector is A photomultiplier, connected with A/D number of templates, and processed by multistage amplification. Can continuously measure the corresponding optical density change over time of light transmittance, five number for spectral response sensitivity, similar to the response to the naked eye and dark current is lower than 0.001 UA. The smallest sensitivity of photomultiplier can read light road 0.5 100% neutral filter and a ND – 2 amplification filter.

Amplification filter: the transmittance of ND-2.0 is 0.95% and A light color temperature K= 2854.

Light brake: for baffle, correct transmittance of 0% use.

Laser system: output power of 0.5MW~2.0MW helium neon flow.

Temperature probe: 3.0mm in diameter, with an accuracy of plus or minus 1%

Air supply system: during the test, the air flow in the box body is 8000 + + 800L/MIN through the converter fan

Ladder: wide W500* length 3500. Details are shown below.

Blowtorch: the company’s homemade venturi mixed spray lamp with a length of 341mm (see below)

Each burner drill has 242 ￠1.32 mm hole to breathe fire

Combustion gases: 95% purity of propane. (Customer prepared)

Combustion gases: compressed air. (Air pressure needs to reach above 10Mba)

Air flow rate: (100~1000)mg/min adjustable.

Propane flow rate: (400~4000 + 0.5)L/min can be adjusted.

The machine is equipped with exhaust gas purifying system to control the air flow and purify the waste gas produced by the combustion to the environment.

Chassis adopts double diaphragm structure, among with high temperature insulation cotton, effectively lower the temperature of the test process and wall < 45 °.

Power supply requirements: AC220 (plus or minus 10%) V/50HZ.

Machine operation power: 1KW.

Technical services:

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Ground level, good ventilation, free of inflammable, explosive, corrosive gas and dust.

There is no strong electromagnetic radiation source nearby.

Proper maintenance space surrounds the equipment.

Temperature: 5 ℃ ~ 30 ℃.

Pressure: 86 ~ 106kpa.

Power supply: AC220V/ 50HZ.

Voltage allowable fluctuation range: 220V plus or minus 10%.

Frequency allowable fluctuation range: 50Hz plus or minus 1%.

The user is required to configure the air and power switch of the corresponding capacity at the installation site, and the switch must be used independently for the equipment.

Device does not work, the temperature of the environment should be kept within + 0 ~ 45 ℃.