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From: "Carlos E.R." <robin_listas@es.invalid>
Newsgroups: comp.os.linux.misc,alt.os.linux.mint
Subject: Re: smart plugs???
Date: Sat, 18 Jan 2025 20:55:29 +0100
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On 2025-01-18 14:46, The Natural Philosopher wrote:
> On 18/01/2025 13:13, Carlos E.R. wrote:
>> On 2025-01-18 12:02, The Natural Philosopher wrote:
>>> On 18/01/2025 08:55, Mike Scott wrote:
>>>> On 18/01/2025 02:21, Lawrence D'Oliveiro wrote:
>>>>> On Fri, 17 Jan 2025 16:48:03 +0000, Mike Scott wrote:
>>>>>
>>>>>> ... I'm looking at probably 3kW at 240V to run a heater.
>>>>>>
>>>>>> The power level is just a bit outside my comfort zone for home
>>>>>> construction ...
>>>>>
>>>>> I should say it is. It’s well beyond the rating for a typical 
>>>>> household
>>>>> outlet. Whatever it is, I imagine you’re going to need professional
>>>>> electrician help to set it up.
>>>>
>>>> Your comment puzzles me.... standard UK outlets are 13A 240V, using 
>>>> a ring main rated at 30A total. 3kW is a standard "3 bar" electric 
>>>> heater.
>>>>
>>>>
>>> He is probably Murrican or European. Murricans need to go to 220V to 
>>> get that sort of power and in Spain its illegal.
>>
>> What is illegal?
>>
> Appliances that draw more than 1.5kW from memory.
> 
> Oh. No. They have changed it

On "modern" houses sockets are rated for 16A, being schuko type like 
maybe the entire EU.

<https://en.wikipedia.org/wiki/Schuko>

You may be confused because I have mentioned in conversations that my 
entire (old) house is limited to 10A (actually 15 because design flaw of 
the meter-limiter), because it is an old installation that doesn't have 
a modern certification.

On a certified house you may easily have 10 KW, sometimes 15. More if 
you contract the three phases.

> 
> "All electrical equipment has an assigned electrical power (small or 
> large) that is expressed in Watts (W) or kilowatts (kW). If we use 
> several devices simultaneously, the electrical power of each adds up, 
> until we reach a point where we can no longer use more equipment at a 
> time so that this sum exceeds the electrical power we have contracted. 
> This is the maximum power that can be consumed simultaneously.
> 
> When the maximum power is exceeded, the new digital meters disconnect 
> the service and the home runs out of electricity supply. The most 
> economical and efficient way to use electric energy is to have a low 
> contracted power, as this will optimise the use of the equipment and 
> reduce the fixed cost of the electricity bill."
> 
> 


-- 
Cheers, Carlos.