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I'm a bit confused, I have an existing feeder with three 100A IPD TC100L gG fuses and a cable with a debated CCC of 130A. Everything looks fine but when I open a TCC for the fuse, the curve actually starts at 160A??? So now my cable is not protected, why is the fuse rated at 100A then? All fuses seems to have the TCC curve starts a lot higher than the actual rated currents, why is that?
It's a fuse, inverse curves are for electronic breakers. My question is why a 100A fuse has a TCC starting at 160A. A TCC is the curve that's shows current vs time, if the lowest point is 160A the how do I know when it will trip at 130A?
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Thanks, but how do ppl protect cables with fuses then for overloades? If a 100A fuse actually starts at 160A then why call it 100A? What happens at 130A then? If nothing then why call it a 100A fuse?