EV charger installation possible?

[EFLImpudence]

It is quite common around here, what is found elsewhere I have no idea

...but a 100A fuse holder is 100A, whatever fuse you put in it.

A 100 Amp fuseholder might likely be 80A max,

 

[ebee]

...but a 100A fuse holder is 100A, whatever fuse you put in it.

Hah I see, Sorry, how Remiss of me! Slaps onself over the head with a large stick.
I should have said what I meant.
A 100A fuseholder may well have a lower value fuse inside.
Hope that clears up any confusion I may have caused.

And some of the old fuseholders may just have a piece of fusewire in it.

And sometimes some scoundrel may have put a 6 inch nail or a paperclip or a piece of copper wire in place .
It used to be not that uncommon for a plugtop fuse to be bridged biy a piece of silver paper (aluminium etc) and you might hear someone say "A good electrician showed me this trick!"
Good electrician? well a better one than me cos I have no idea of the current carrying capacity of silver foil from fag packs or 6 inch nails or bits of copper wire, strange really cos I wonder if there is one published? Hmmm you`d think so because of the number of people that used such tricks !!!

 

[ericmark]

I remember the Lucas 2TU relay box used for lights on trailers in the 70's. It allowed one to have an independent fuse for the trailer, and worked warning lights for indicators, I seem to remember brakes as well?

We had them fitted to mobile libraries, and the fuse was on the dash with all the other fuses, so in the 2TU there was a bit of aluminium rod to replace the fuse, I could see the reasoning, as there was a fuse on the dash.

I have also seen fuse holders with metal links, in the neutral, as in the main we don't fuse the neutral.

I remember 1980's going to work on a container freezer, found the fuse had blown, the plate said 20 amps, but it had a 16 amp bottle fuse in the fuse box, and a 20 amp fuse would not fit, so I opened a 20 amp fuse, and a 16 amp fuse, and put the 20 amp foil in the 16 amp fuse, this got it running, but could not work out how it had ever run with a 16 amp fuse. When the normal electrician for that site returned off leave, I told him what I had done to keep it running, only to be told that's what I did in the first place.

Never liked the bottle fuses, as the switch was after the fuse, so fuse always live.

But the DNO fuse has never ruptured with me, wonder how common it is?