GLOW WIRE TESTER (also known as Glow Wire Test Apparatus) is designed to carry out fire hazard testing as specified in IEC 60695-2-10 2000-10. Flammability test is to check the ‘Resistance to Fire’ of electrical insulators that touch directly conducting parts & also parts of insulators. This test is also referred in many other standards such as IS 11000, IS 3854 : 1997 / IS 1293 :1988 / IS 371 :1999 & IS 11000 Pt 2 Sec 1, IEC 60335, IEC 884/94, IEC 60598, IEC 61058, BS 6458, BS EN 60695–2-10,11,12, etc.
Nickel / Chromium based heating element (glow wire)
Cr/Al based fine wire based thermocouple for temperature sensing
Temperature Range - Adjustable up to 960° centigrade
A motorized sliding carrier with an universally adjusted SS perforated tray is provided to mount the specimen
Self adjusting constant current mode operation as soon as heater-specimen contact is established
Motor brings the jig back to the pre-test position automatically as soon as the test is concluded
Time Controller - Micro-controller based programmable timer 0 to 999secPrecision scale: Precision scale is provided to measure the height of the flame
Safety – Emergency Switch, MCB, Fuses Entire panel hoisted in aluminium sections for better aesthetics
Fully Automated Panel
Temperature Sensor – Thermocouple: Fine wire of Cr/Al of 0.5 mm diameter located in 0.6 mm diameter pocket hole in temperature sheath resistant to 1000 degree centigrade
In the model GWT A2, current is held approximately constant (15 % swing) once the heating element touches the specimen.
Heating Element – Glow Wire: Nickel / Chromium (>77% Ni/20±1%Cr) based heating element (glow wire) with overall diameter of 4.00mm ±0.07mm
Time Controller - Micro-controller based programmable timer 0 to 999 sec
The total test time can be programmed through keyboard
The ignition time and extinguish time of flame can be registered in timer
The stored time values can be viewed after the end of test
Setting on PC for PC based variant
Penetration Depth - Mechanically restricted to 7 mm
Specimen size - 180 x 150 Sq.mm max. & 15 x 15 Sq. mm min., Thickness 10mm to 80 mm.
Test specimen contact force against the glow wire is preloaded to 0.8 to 1.2N
Test Chamber Dimensions – (Available only with automatic variants)
Dimensions – 600 mm W x 300 mm D x 610 mm H. (approx.)
Supply Voltage – 230 V AC, 50 Hz, 1 Phase, 500 VA
The product can be customized as PC based or semi-automatic (microcontroller based), with or without an optional test chamber. In case of PC based equipment, the software-reports can be custom made
The test is carried out to asses the flammability characteristics of a Product body, typically made up of thermoplasts and thermosets. The glow wire tester is an important tool not just to assess the quality of the Product, but also to continuously check the incoming components related to the Product body for their flammability characteristics. Material moulds manufacturers can use this product to ascertain the quality of the Material under test