Glow Wire Test Apparatus

IEC60695-2-10, IEC60695-2-13 and UL746A.

This device simulates the thermal stress test of glowing components or heat sources like overload resistance or ignition sources for hazard testing. It is suitable for electric products, household appliances and other materials. It is also used in the no flame ignition source fire test to test initiation temperature and flammability index of related glowing filaments.

Test Sample
Electrical equipment and its components and parts, solid electrical insulating materials and other solid combustible materials.

Test principle: the glowing filament whose material and shape is required(Ni77/Cr20) is heated to the testing temperature of 550 ℃ ~ 960 ℃ for 1 min by using the glow wire tester with large current. Then using required pressure (0.95N) vertically burns the test sample for 30 seconds. By observing whether the test sample and bedding object ignite or the burning time, the users can judge the ignition danger of electric and electronic products. It is used for the ignition test, ignition temperature (GWIT) test, flammability test and flammability index (GWFI) test of solid insulating material and other solid combustible materials.

Parameters (mm)

Model GW-1 GW-2 (Touch screen)
Working voltage 220V/50Hz 220V/50Hz
Control operation mode Electrical control, button operation PLC control, 7 inch color touch screen operation, with infrared remote control
Glowing filament Ф4mm ± 0.04mm (> 77 % Ni/20 ± 1 % Cr) special standard ring shape, horizontal standing
Specimen pressure on glowing filament 0.95N±0.1N
Maximum depth of heating 7mm ± 0.5mm
Specimen movement speed 10mm /s ~ 25mm /s
Temperature calibration Calibration temperature:960°±10°C, the hot wire by electric heating
Thermocouple: RS imported 1mm armour nickel-chromium/nickel/ nickel aluminum K-Thermocouple, temperature resistance 1100°
Silver foil: purity 99.8%, area :2m², thickness:0.06mm
Tray A layer of silk paper (12~30g/m³) is covered on the 10mm thick pine board, with a distance of 200±5mm below the test sample
Test chamber >0.5 cube, sample distance from the inside of the box is greater than 100mm, black yogon background, background illuminance ≤ 20Lx,with exhaust fan
Testing time 30s±1s
Test procedure The test sample is driven by the car and automatic run, the car will return automatically after glow-wire entered the test sample of 7mm
Lighting Equip with lighting in the test chamber, with control
Dimension 1100*550*1200mm, 140kg
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