People dont get the problem, with a plug in solar panel you can have something behind a fuse draw more current than what the fuse sees. If your panel provides 800w and you have other appliences in the same circuit behind the fuse that pull high current they can pull nearly the max of your fuse through the fuse and all the current of your solar panel which would be more than the wiring can tolerate without the fuse blowing. That doesnt take into account that that the wiring could not even be capable of handling max current of your fuse as others here pointed out with shitty wiring that has been done in old houses where at some point someone just changed a fuse without really updating the cables in the wall.
My grandpas house in france had so shitty wiring that i would have never trusted it to be safe. Flat cable with broken isolation and no protective earth and a horrendus subpanel.
People dont get the problem, with a plug in solar panel you can have something behind a fuse draw more current than what the fuse sees. If your panel provides 800w and you have other appliences in the same circuit behind the fuse that pull high current they can pull nearly the max of your fuse through the fuse and all the current of your solar panel which would be more than the wiring can tolerate without the fuse blowing. That doesnt take into account that that the wiring could not even be capable of handling max current of your fuse as others here pointed out with shitty wiring that has been done in old houses where at some point someone just changed a fuse without really updating the cables in the wall.
My grandpas house in france had so shitty wiring that i would have never trusted it to be safe. Flat cable with broken isolation and no protective earth and a horrendus subpanel.
Just do what the Americans do, require it to be on its own circuit. Put in a 5a fuse and Bob’s your uncle.
It is not an actual problem.