The wire and cable smoke density tester is a device used to measure the concentration of smoke released when the wire and cable burns under specific conditions.
The smoke density photometric system of the wire and cable smoke density tester burning under specific conditions is composed of a light source, a silicon photocell receiver and a computer system. The light generated by the light source passes through the smoke density laboratory of 3m×3m×3m, and forms a uniform beam with a diameter of 1.5m±0.1m on the wall opposite the light source. The photocell installed at the center of the beam detects the beam intensity from the light source. When a large amount of smoke is generated in the combustion chamber due to burning cables or optical cables, the smoke absorbs a part of the photoelectricity, and the intensity of the beam reaching the silicon photovoltaic cell is weakened. The transmittance of the linear response It.
The working conditions required by the wire and cable smoke density testing machine:
1. The ground is flat and well ventilated, free from flammable, explosive, corrosive gases and dust.
2. There is no strong electromagnetic radiation source nearby.
3. Appropriate maintenance space is reserved around the equipment.
4. Temperature: 5℃～30℃.
5. Air pressure: 86～106kpa.
6. AC220V/50HZ.
7. Voltage fluctuation range: 220V±10%.
8. Frequency fluctuation range: 50Hz±1%.
9. The user is required to configure an air and power switch with corresponding capacity for the equipment at the installation site, and the switch must be independent and dedicated to the equipment.
10. When the equipment is not working, the temperature of the environment should be kept within +0~45℃.
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