Hello
This test surprised me a bit.
About three years ago I did a similar test myself, which I described then on another forum.
The test was performed using a 150/5 current transformer and an autotransformer.
The current was measured on the / let's call it - primary (5A) side /, on the secondary side (150A) of the transformer, a typical wire coupler (original WAGO) was connected.
At the indicated current of 2A (i.e. connectors 60A) it became overheated and damaged. The 2.5mm2 wires were also very hot. I do not remember what time it was to destroy it, but I think it was just a few minutes. This way I destroyed two couplings.
I still have both the autotransformer and the transformer - so there is no problem with repeating the experiment. The problem, of course, is finding time. As long as I have it (in the summer), I will not fail to record the test and present it to my colleagues. I myself encourage you to conduct such a test yourself, the more so because many electricians have access to transformers, instead of an autotransformer, you can use the light bulb forcing the current.
ADDED:
It would also be nice to measure the voltage drop with such a current forcing - I didn't do it then.
kisses
- GIFT-