A Secret Weapon For Glow Wire tester
A Secret Weapon For Glow Wire tester
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Electrical circuit: the glow wire tester has an electrical circuit which includes no feedback mechanisms or circuit to maintain the temperature.
In the following movie we exhibit the test set up In line with IEC 60695-2-eleven for testing the flammability of stop solutions (GWEPT). These are typically A vital A part of products security correct from the look and development stage. Allow our experts recommend you and conserve time and expense.
b) Position the reward wrapping tissue/picket board in a distance of 200mm±5mm beneath the spot in which the glow-wire applied to the specimen.
A loop of resistance wire is electrically heated to your specified temperature along with the specimen currently being examined is introduced into contact with this heated wire with an outlined horizontal loading. Observations and measurements are made to evaluate the fire hazard offered because of the specimen for the duration of exposure to elevated temperatures.
IEC 60695-2-thirteen states that "the exam effects enable it to be feasible to offer a relative comparison of varied products based on the temperature at which the take a look at specimen ignites in the course of the applying from the electrically heated glow-wire applied being an ignition source."
Whilst one sample suffices, extra samples are suggested in the event that further testing is necessary. Particular technical specs may mandate additional samples.
Data is going to be saved in date-time structure together with all technological parameters in the selected folder. Retrieval of information by day will facilitate comparison and Assessment of parameters.
The glow wire temperature ought to be set up first. Heating the glow wire to get to the needed temperature.
b) the flames or glowing with the specimen extinguish within 30s immediately after elimination with the glow-wire and there's no ignition on the wrapping tissue.
three, glowing wire contact with the measured items, the product carries on to supply power, sample car or truck returned immediately after 2S Minimize off The existing to ensure that the exam correctly
C. Push the "Heating" button to regulate the current adjustment knob. As outlined by the necessities from the sample, change the right current worth, when the temperature is necessary to fulfill the test demands of your necessary temperature.
There is a place limiter for glow wire penetration just in case it can penetrate too much in to the specimen. Then get rid of it, observe for 30S to discover when there is ignition or glowing combustion. Record time, and Test if it fulfills the common prerequisite or not.
The Glow Wire tester exam is conducted to determine the ignition hazard of electrical and Digital tools, and also the flammability, glow-wire ignition temperature (GWIT), and glow-wire flammability index (GWFI) of strong insulating resources and also other solid combustible supplies by heating the heater wire of specified product and form into the examination temperature with high recent to get a specified length of Glow Wire tester time, then scalding the take a look at specimen vertically with specified pressure for a particular time period, and observing if the specimen and the bedding object ignites or the burning time.
b) the flames or glowing from the Glow Wire tester specimen extinguish within just 30s immediately after removal of the glow-wire and there's no ignition from the wrapping tissue.