On 2014-11-23 13:21, Holm Tiffe wrote:
Johnny Billquist wrote:
On 2014-11-23 12:45, tony duell wrote:
> No, instead your table lamp is protected by a
15A breaker in the
> distibution panel. Hmm.. I am told that in some continental
> European countries it's common to have a pair of 16 A (230V)
> outlets protected by a single 32A breaker. And no other protective
> device. So a table lamp is effectively fused at 32A. No thanks.
No. That's hearsay and forbidden everywhere.
I've not seen all the electical regulations for all EU countries... Until
I do I will not be convinced that such
wiring doesn't exist anywere..
What is the typical German wiring ? A 16A breaker for each outlet?
Typical is probably 10A. Same in Sweden, and Switzerland (which
admittedly is outside the EU).
No. 16A is typical for actual installations. Nevertheless there are 10A and
6A circuit breakers too, but each outlet and each plug is rated 16A.
10A is history.
Really? All my circuits both in Sweden and Switzerland have 10A breakers
on them.
I wouldn't be surprised to learn that the actual wiring might be
designed for more, but that's what *all* my breakers are at.
I don't know what the actual plugs are rated for. But for computers, the
part that plugs into the computer are rated for 10A. There is a 16A
rated model, which you might find on tea kettles, but every computer
item I own (or even have owned) have the 10A version.
(And Sweden use the same SHUKO plugs you have in Germany.)
You might have
several outlets on the same 10A breaker. However, all the
wiring can take the full 10A, so there is no possibility of actually
draw more than the breaker allows, and no way to have more than 10A
flowing through the wires.
But if your lamp is only designed for 1A, then yes, the house wiring can
still deliver 10A to it. How on earth the lamp would be able to draw
more than 1A though, would be a mystery.
Even if the lamp is designed to for 1A it's wiring has to be able to
withstand 16A so if a short occurs the fuse is blown with no risk at all.
Hmm. Possible. I don't know what the regulations are around that. I know
that some wiring for small lamps seem to have pretty thin wiring. But as
Tony remarked - if something actually breaks, it's normally a short
circuit, so it will immediately trip both 10A and 16A breakers anyway,
and the lamp wiring never have a chance to even start heating up.
Johnny