WEBVTT

00:00.000 --> 00:11.816
We will test the short circuit on 2 * 1 mm² wire. The generator is in SELV 17 V DC

00:11.816 --> 00:18.615
An ammeter clamp is available and the LCD display of the power supply which measures the intensity; ie the voltage

00:18.615 --> 00:23.139
I will start the short circuit at the stripped ends of the wires

00:23.139 --> 00:27.516
Start of short-circuit: about 120 Amps

00:27.516 --> 00:37.057
In a few seconds the smoke invades everything!

00:37.057 --> 00:44.555
I will reproduce the experiment with ventilation to evacuate the smoke

00:44.555 --> 01:02.804
The experiment is safe: the generator is in SELV and calibrated to withstand this intensity!

01:02.804 --> 01:20.747
150 Amps at the beginning of short circuit and it's fire! Imagine on a timber frame ...