Based on the EN IEC 60332-3 standard, the EN 50399 standard has been prepared within the scope of the European Construction Materials (CPR) directive 305/2011. The EN 50399 standard regulates the integration of heat and smoke density measurements in the vertical flame propagation test setup. Cables tested under this standard can be classified according to their fire resistance.

MATEŞ ELEKTRONİK, which is the leading brand in Turkey in the design and production of both fire resistance test devices and cable test devices, manufactures EN 50399 Test Devices.

MATEŞ ELEKTRONİK EN50399 Test Device consists of 5 main parts;

1. Experiment Cabin:

A 100x200x400±10cm test cabinet defined in the EN IEC 60332-3 standard is used. Rock wool with a coefficient of 0.7 W/m²·K in accordance with the standard definition is used as the intermediate insulation material in the experiment cabinet, which is made of AISI 304 1.5mm stainless steel inside and outside. For fresh air, according to the 1060 standard describes ³ / h value is used to set the air flow fan. Burners and venturis are supplied from the manufacturers required in the standard. Two burners are provided for different stair widths. Burner positions are designed to be adjusted very easily. It is supplied with two stainless steel ladder cabins, wide and narrow. There is a crane on the test cabin for easy placement of the samples. For extinguishing, there is an in-cab CO ₂ system and a pneumatically closable top cover.

2. Smoke Evacuation System

It includes the hood on the test cabinet, in accordance with the standard description. It includes a control system that allows the test gas to be directed directly to or from the measurement pipe in accordance with the operator's preference. There are fans at both outlets. The fan connected to the measuring pipe is inverter controlled and the fan speed is controlled in real time by the test device.

3. Measuring Tube:

The measuring tube, manufactured in accordance with the standard description and made of stainless steel, includes gas/pressure/temperature analysis probes for heat measurement and the light assembly required for smoke density analysis. For light assembly calibration, 1 set of lenses specified by the standard is provided.

4. Gas Analysis Unit:

The gas analysis unit used within the scope of the device performs the Oxygen and Carbon Dioxide sampling processes of the test gas sampled from the measurement pipe. Gas analyzer is supplied from Servomex company. The conditioning system of the gas going to the gas analyzer is also within the scope of the unit. Operations such as flow adjustment, filtering, dehumidification of the gas with refrigerant are carried out in the conditioning system.

5. Control Cabinet:

It contains mass flow meter (Mass Flow Controller) devices to ensure that the test gases are supplied at the determined flow rate and sensitivity. The control cabinet also houses the automation system and control computer of the entire device. It performs all calculations and reporting processes related to burner burning/extinguishing, gas flow value, all measurements and testing. The easy-to-use test software ensures that the entire test process is carried out automatically, in accordance with the standard, with minimal control and information input.