The UL 1685 Wire And Cable Combustion Test Apparatus Is An Instrument Used To Evaluate The Ability Of Single Or Bundled Cables To Suppress Flame Spread Under Specified Conditions

Instrument Introduction
The UL 1685 wire and cable combustion test apparatus is an instrument used to evaluate the ability of single or bundled cables to suppress flame spread under specified conditions, meeting the test requirements of UL 1685, IEEE 383 and IEEE 1202.
The sample was burned in a specified volume space for 20 minutes. During these 20 minutes, the cable sample was ignited with a vertically placed flame of a theoretical value of 20kW (70,000 Btu/hr) to evaluate the flame suppression performance of the cable.
Technical parameters
Compliant with standards
IEEE 1202
Flame spread - Wire and cable testing
IEEE 383
Type testing standards for IE class wires, field joints and connectors in nuclear power plants
UL 1685
The fire spread and smoke production of the cable
Main features
Test space dimensions: 2438(length)×2438(width)×3353(height) mm, volume: 19.93m ³, inner ground area: 5.94m ².
Thermocouples and bidirectional wind speed probes are used to measure the temperature and air flow velocity in the exhaust pipe.
The bidirectional anemometer is used to precisely measure the vortex velocity of the high-temperature combustion gas generated during the combustion process in the exhaust pipe.
The dimensions of the pallet are 305 (length) ×76 (width) ×2438 (height) mm. The horizontal width of the steel ladder is 25±6mm, and the longitudinal span is 229mm.
Belt-type propane burner blowtorch, equipped with Venturi mixer, complies with IEC60332-3;
The mass flow controller ensures a stable airflow even under changes in the air supply source and air pressure.
The data acquisition board is adopted to precisely collect and measure the temperature of internal components and the flame temperature of the burner.
Gas and air can be controlled to open and close through solenoid valves.
Smoke density measurement system
Paramagnetic oxygen heat release rate testing system
The solenoid valve and igniter can be manually controlled through the buttons on the control panel. In an emergency, the power supply of the instrument (including the computer) can be turned off.