Wire and Cable Smoke Density Testing Machine JAY-21695 Wire and Cable Smoke Density Testing Machine complies with IEC 61034-1 standard

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Wire and cable smoke density testing machine

JAY-21695

Product Introduction

The national cable industry is vigorously developing low smoke and halogen-free cables and materials, which require measuring the smoke density of the cables; The main principle of smoke density measurement is that in a specific space, cables or materials produce smoke under specific combustion or radiation conditions, and the light beam will attenuate after passing through the smoke. The transmittance of the light beam is measured and the specific optical density and smoke density are calculated.

The wire and cable smoke density tester complies with GB/T 17651.1-2-1998 and IEC 61034-1-2:1997 "Determination of Smoke Density of Cables and Optical Cables Burning under Specific Conditions". It is a testing device used to measure the transmittance of smoke released by all insulated metal conductor cables or optical cables used for transmitting electrical energy or signals when horizontally burned under specific conditions. (IEC 61034 requires a smoke box size of 27m3).

Compliant with standards

GB/T 17651.1~2-1998 Determination of Smoke Density of Cables and Optical Cables Burning under Specific Conditions

IEC 61034-2005 Determination of Smoke Density of Cables and Optical Cables Burning under Specific Conditions

Structural characteristics

1. The combustion chamber is composed of a cubic shell with a length, width, and height of 3000mm ± 30mm, and the room is made of A-grade refractory material such as rock wool color steel plate;

2. All internal fixtures are made of stainless steel; Beautiful and corrosion-resistant;

3. The total area of the ventilation hole is 50cm2 ± 10cm2, and it remains open throughout the experiment; The height of the baffle is 1000mm;

4. Equip wire and cable testing racks and hanging weights according to standard requirements.

5. The door of the test box comes with a glass observation window, and there is a transparent sealed window (minimum size of 100mm x 100mm) on each side of the opposite wall, which can transmit light from the horizontal optical measurement system. 2150mm ± 100mm high from the ground;

6. The photoelectric cell and light source are placed in the center position of each window on two walls, without physical contact.

Smoke Density Testing System

1. Light source: halogen lamp with clean crystal bulb and tungsten wire: 2900K color temperature; Power 100W, DC12V, nominal luminous flux 2000lm~3000lm;

2. US imported silicon photovoltaic module: testing the degree of light attenuation caused by smoke; The load resistance of the photovoltaic cell shall not exceed 100 Ω; The input impedance of its recorder is 10000 times greater than the load resistance of the photovoltaic cell; Accurately ensure the linearity of transmittance;

3. The range of optical density measurement for smoke density testing is 0% to 100%;

4. Install various filters to demonstrate that the light flux is suitable for changing and testing the smoke density of the emitted light to the light source position;

5. The support system is used to install smoke density specific light sources and imported high-resolution photoelectric tube receivers on the exterior walls;

6. The laboratory is equipped with door and window sealing structures;

7. The standard power of the light source is 100W, the standard voltage is DC 12V, the standard speed of light is 2000lm~3000lm, and the standard color temperature is 2800K~3200K;

8. Optical path calibration system: 0-100% point calibration;

9. The heating system is installed inside the box to quickly reach the specified temperature (25 ℃± 5 ℃);

10. Computerized measurement and control system. Chinese menu prompts and operations can display curves.

11. The laboratory should have air exhaust ports and an indoor exhaust volume of approximately 7-15 cubic meters per minute;

Combustion source:

1. Ethanol 90% ± 1%; Water 6% ± 1%;

2Alcohol Burning Box: Bottom 210mm X 110mm; Top surface: 240mm X 140mm; Height 80mm; Dimensional deviation: ± 2mm; Thickness 1mm;

3The alcohol combustion box is located 100mm ± 10mm above the ground;

Control system:

1. Computer control system, Labview dedicated testing software; Artificial intelligence control interface; Good interface comfort;

2. Accuracy of power stabilizer ± 0.01V;

3. Experimental data is automatically stored and can be freely queried;

4. Timing reminder function;

5. Safety emergency cut-off device;

6. Standard parameters can be queried on the screen;

Other equipment:

1. Fan; The distance between the fan shaft and the ground is 200-300mm; the air volume is 7m ³/min~157m ³/min;

2. Burning alcohol;

3. Brand laptops.