Let me tell you about something we saw with a client: we opened a panel that, according to them, “was working perfectly”… but one phase was hotter than the others.
Nothing was exploding, nothing was cracking… but something was definitely wrong.
When you see a hot phase, rule out the basics: load, consumption, and balance.
And when all of that is normal, suspicion falls on one place: the tightening.
We checked terminal by terminal, and there was the culprit: a loose screw.
It’s amazing how something so small can generate enormous resistance and start heating up the line.
The risk is real and follows this chain:
heat ? insulation deterioration ? loose connections ? spark ? fire.
All because of not ensuring a tightening that literally takes 10 seconds.
So the rule is simple:
If you’re going to work on a panel, check the tightening before anything else.
Safety isn’t complicated… what’s complicated is ignoring it.
