3 Cubic Meter Room Cable Smoke Density Tester IEC 61034 Standard Micro Controlled

 
Micro-Controlled 3 Cubic Meter Room Wire And Cable Smoke Density Tester
 
 
Product Introduce
 
IEC 61034 is a standard developed by the International Electrotechnical Commission for evaluating the smoke density generated by wires, cables and optical cables under specific burning conditions. It is divided into IEC 61034-1 (test equipment specifications) and IEC 61034-2 (test procedures and requirements). The standard quantifies the smoke density by burning the cable sample with a 1 liter standard alcohol fire source in a 3m × 3m × 3m test chamber and measuring the beam transmittance. The test is applicable to low-smoke halogen-free cables, building cables, and cables for railways, ships and other scenarios, and is designed to verify their impact on visibility and escape safety in fires. The results support CE mark certification and European CPR regulatory requirements, ensuring the fire performance of cables in high-safety environments.
 
 

 
 
Standard
 
IEC 61034-1:2005
Title: Measurement of smoke density of cables burning under defined conditions – Part 1: Test apparatus
Content: Detailed requirements for test equipment used to measure smoke emissions from burning wires, cables or optical cables under defined conditions. Includes technical specifications for test chambers, photovoltaic systems, light sources and other auxiliary equipment.
 
IEC 61034-2:2005
Title: Measurement of smoke density of cables burning under defined conditions – Part 2: Test procedure and requirements
Content: Specifies test procedures and requirements, including preparation and installation of cable samples, burning methods, and evaluation criteria for test results. Describes how to evaluate smoke density by measuring the transmittance of a light beam through smoke.
 
 
Test product scope
 
IEC 61034 applies to the following products:
 
Wires and cables: All insulated metal conductor cables used for energy or signal transmission.
 
Fiber optic cables: Smoke density test of optical cables under specific combustion conditions.
 
Halogen-free cables and materials: Special attention is paid to low-smoke halogen-free (LSZH) cables, which are widely used in scenes with high smoke emission requirements such as construction, railways and ships.
 
Other related materials: Plastic materials (such as PVC, LSZH) used for cable insulation or sheathing need to be evaluated for their smoke generation potential during combustion.
 
 
Main prameter
 
1 This test machine is designed according to Part 1 (Test Equipment) and Part 2 (Test Procedures and Requirements) of the IEC61034 standard. The optical measurement system for the smoke density of cables or optical cables burning under specific conditions consists of a light source, a silicon photocell receiver and a computer system. The light generated by the light source passes through a 3m×3m×3m smoke density laboratory, forming 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 intensity of the beam from the light source. When a large amount of smoke is generated in the combustion chamber due to the burning of cables or optical cables, the smoke absorbs part of the photoelectricity, and the intensity of the beam reaching the silicon photocell is weakened. By processing the data through the computer system, the transmittance It with a linear response relative to the initial 100% can be calculated.
2 This instrument involves professional knowledge in three aspects: mechanics, optics, and electronics. It is a mechanical-optical-electrical integrated product with the advantages of reasonable structure, stable performance, and easy operation; WINDOWS XP operation interface, LabVIEW style, and perfect safety mechanism. During the test, the measurement results are displayed in real time and a perfect curve is dynamically drawn. The data can be permanently saved, retrieved and printed out, and reports can be printed directly.
 
Combustion chamber:
1 The entire cubic combustion chamber is assembled on site using color steel plates.
 
2 Internal dimensions: L3000*W3000*H3000 (mm)
 
3 Structure: There is a glass observation window on the front, and a transparent sealed window is set on each of the two opposite walls. The size is: 100mmx100mm, allowing the light beam of the horizontal light measuring device to pass through. The center of the sealed window is 2150mm above the ground. There are several vents at the bottom, and the vents are 100x500mm (50 square centimeters)
 
4 An exhaust fan is installed on the top.
 
Light measurement system:
 
1. Light source: imported quartz halogen lamp, nominal power: 100W; nominal voltage: 12V; accuracy: ±0.01V; nominal luminous flux: 2000~3000Lm, nominal color temperature: 2800K~3200K, meeting the requirements of GB/T17651.1 5.2.
 
2 Receiver: Silicon photocell, amplified by the board, input to the computer through the I/O board, meeting the requirements of GB/T17651.1, and the spectral response matches the photometer of the International Commission on Illumination (CIE).
 
3 Installation: Installed at one end of a tube with a length of 150, and the other end is a dustproof window. The inner wall of the tube is glossy black and anti-reflective.
 
4 The transmittance of 0% means no light passes through, and the transmittance of 100% means that the light passes through completely without obstruction.
 
5 Measurable transmittance range (0～100)%.
 
Standard fire source:
 
1 The fire source is 1.0L alcohol configuration: 90% ethanol, 4% methanol, and 6% water.
 
2 Alcohol tray (combustion boat): stainless steel, 1.0mm thick, bottom: 210x110mm, top: 240x140mm, height 80mm.
 
3 Installation position: The height of the alcohol tray from the ground is 100mm to allow air circulation.
 
Smoke mixing:
 
1 Use a desktop fan to evenly distribute the smoke in the combustion chamber. The fan shaft is 250mm above the ground, 500mm from the wall, and the air volume is 7 cubic meters per minute. During the test, the air is blown horizontally by the fan.
 
Blank test:
 
1 The purpose is to adjust the combustion chamber to the specified temperature, and burn the alcohol lamp to make the temperature of the combustion chamber reach: 25±5℃.
 
Temperature measuring device:
 
1 A temperature sensor is installed on the inner surface of the door at a height of 1.5m from the ground and 0.5m from the wall to monitor the temperature of the laboratory.
 
 
Accessories List