Who's rewired their house for this hobby?
bqt at update.uu.se
Sun Nov 23 15:51:39 CST 2014
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
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.
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