NH type fire resistance characteristic combustion test device and its composition: The NH type fire resistance characteristic combustion test device consists of two major systems

2.1 Combustion system:

A 500mm domestically produced AGF strip type spray lamp (including Venturi mixer) and spray lamp support trolley

Two 1.5mm thermocouples and corresponding portable temperature detectors for flame correction

Two interchangeable cable sample combustion support brackets (for cables of different diameters)

2.2 Control System:

Control and regulation of gas source: compressed air, propane gas.

Control and adjustment of sample voltage and maintenance current

·Control of combustion time

Main technical indicators:

3.1 The applied voltage of the sample is adjustable from 300 to 1000 volts

3.2 Short circuit or breakdown current of the sample 2A

3.3 Sample maintenance current 0-260MA adjustable

3.4 Three phase transformer: 380V, 9KVA

3.5 Belt type spray lamp: 500mm (including Venturi mixer)

4、 Selection of user models

4.1 NH-2 type fire resistance characteristic combustion test device:

This model adopts a mass flow meter and uses digital electronic control to control the gas flow rate. The flow rate is accurate, and the combustion flame of the burner is stable. At 0.1Mpa, the air flow rate is adjusted to 0-200L/min, and the propane gas flow rate is adjusted to 0-20L/mi. High end users and those who need to have GB or 1EC standard fire resistance and specific combustion tests, as well as those who have 1C fire resistance, BS fire resistance and impact resistance, and BS with a water flame compartment must choose this testing device, but the price is relatively expensive

The content that other indicators meet (three main technical indicators)

5、 Other

Users need to build their own 3X3X3M combustion chamber and control room according to the standard. After the contract is signed, we will conduct on-site investigation and provide layout plans, power pipeline diagrams, gas source pipeline diagrams, etc