Why are outdoor sockets only protected with 10A? Can it be changed?

Dear forum members,

I noticed quite early on that my outdoor sockets can handle less power than my indoor sockets (EV, tripped fuse), but I didn’t look into it further initially. Now I had problems with the shredder and the stone cutting machine.
Annoyed by this, I took a look at the fuse box and discovered that both outdoor sockets are only protected with 10A fuses, while all the others are protected with 16A.
I have now read that this happens more often and possibly especially with switched sockets.
My outdoor sockets are both switchable (on the advice of the electrician, who did not inform me that this also means they can handle less power).
So now my question is why is this done? My guess: standard switches can only withstand less power (thermally), so they are also fused with lower ratings so that with too much power the fuse blows and not the switch burns out.
Can this simply be replaced? Can I hold the electrician responsible because he didn’t say anything about this? Is there any regulation that governs this? Either that a standard Schuko socket is designed for 3.5 kW and not less, or that the electrician’s approach is supported?

Thanks and best regards

Tolentino

Does the fuse blow after a certain time or when the consumers are switched on?

Varies depending on the device. With the electric car, still the longest at about one minute. I suspect it doesn't draw that much at the beginning either. [Häcklser] immediately. Stone cutting machine about 30 seconds. Concrete mixer was no problem, rotary hammer and hedge trimmer neither.

One could initially try with a slower fuse.

Whether 16A works/is allowed depends on several factors, such as cable length, diameter, installation method, switch, etc...

It is also controversial whether a Schuko socket is suitable for more than 10A, i.e. charging a car at all. Better install a wallbox.

Whether 16A works/is allowed depends on several factors, such as cable length, diameter, installation method, switch, etc...

Well, if all the other sockets are protected with 16A and only the two outdoor sockets (which are also switchable) are protected with 10A, the suspicion is quite close that it either has to do with the socket or the switch. Cable length is not longer than many other sockets. Diameter - well, I can't determine that easily now, but why should they have used a different diameter there. Installation method - can that be seen from photos of the rough-in phase?

It is also disputed whether a Schuko socket is suitable for more than 10A, i.e. for charging a car at all. Better install a wallbox.

Ok, wow, I assumed that if the car manufacturer includes a corresponding adapter, it would work. Wouldn't the fuse blow first before the cable catches fire anyway?

Well, if all the other sockets are fused with 16A and only...

I fear that is not a sufficient criterion.

Diameter – well, I can’t just determine that right now, but why should he have used a different diameter there.

Because it was just there, because it goes outside, etc. ;-)

Ok, crazy, I assumed that if the car manufacturer includes a corresponding adapter, it would work.

Maybe the charging cable is for/with 12A? What does it say on it? No one really uses 16A on Schuko.

Wouldn’t the fuse blow first before the line burns, just to be sure?

Exactly, only if the fuse is properly rated. Most electricians probably always fuse everything with 16A. They are also significantly cheaper than, for example, 10A. But most Schuko sockets should not be continuously loaded with 16A. Especially socket connections can deteriorate over time and only then become "fire hazard." So it’s not such a simple/clear topic. What kind of switch was installed before the sockets? Are both on a 10A or separated? It’s best if you talk to the electrician who did the work.