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 Post subject: Re: UK Fuses
PostPosted: Mon Mar 25, 2019 1:10 pm 
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Joined: Thu Mar 15, 2007 1:11 pm
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Location: At peace on this Planet but near Gois
Hi Steve

I have fitted a 4 gang extension next to an existing PT socket and i just plug it in when i need to use a UK plug.

Peter

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 Post subject: Re: UK Fuses
PostPosted: Mon Mar 25, 2019 2:53 pm 
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Joined: Wed Nov 21, 2018 11:59 am
Posts: 27
Location: Lisbon heading south
If one wanted to, would there be anything either (a) illegal as in contrary to Regulations; or (b) dangerous about having an electrician connect up on one's wall UK 3 pin sockets, as in, to sit alongside Portuguese ones ?

we have several uk outlets side by side with euro outlets
just make sure they are c e certified not chinese knok offs


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 Post subject: Re: UK Fuses
PostPosted: Mon Mar 25, 2019 3:05 pm 
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Joined: Thu Oct 11, 2012 8:50 am
Posts: 235
I would bring the UK plugs from B&Q or similar.

Did you have a local, qualified and certified, electrician install your UK plugs ?

That's what I am getting at ~ as to whether there might be some Regulation which requires only Portuguese standard plugs to be installed.

Query : is the voltage supply in Portugal different from that in the UK, and might that ( if so ) have some deleterious effect on the plug ? Overheating or whatever ?


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 Post subject: Re: UK Fuses
PostPosted: Mon Mar 25, 2019 3:10 pm 
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Joined: Wed Nov 21, 2018 11:59 am
Posts: 27
Location: Lisbon heading south
uk voltage is the same as pt usually around 220 volts does go up and down but that is what the rcd in you distribution box is there for to protect from voltage surge and overload
we had local sparky fit them because the back boxes are sometimes different
much better than using adaptors which do overheat sometimes if thereis a large current draw


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 Post subject: Re: UK Fuses
PostPosted: Mon Mar 25, 2019 3:19 pm 
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Joined: Thu Oct 11, 2012 8:50 am
Posts: 235
So the local sparky didn't blink when you presented him with the UK wall sockets ?


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PostPosted: Mon Mar 25, 2019 7:32 pm 
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Joined: Fri Sep 30, 2005 9:30 am
Posts: 710
Location: Portugal
rhys wrote:
> On a related issue : does anyone with qualification in electrical matters know the answer to the following:
If one wanted to, would there be anything either (a) illegal as in contrary to Regulations; or (b) dangerous about having an electrician connect up on one's wall UK 3 pin sockets, as in, to sit alongside Portuguese ones ?

Providing your property already has a habitation licence and you accept that you may need to take them out again to sell the house. Then there is no reason why you can't modify your electrical installation to your hearts delight.

Do bear in mind that there is very little point in doing this as the wiring in Portugal is not a ring main and the purpose of putting in UK sockets is only to save you the bother of swapping to PT shuko plugs ! Why not just do that ?

Mains here has no polarity unlike UK as sockets and plugtops are reversible - the English fuse in the UK plugtop may or may not find itself covering either the live or the neural to no advantage. Simply not worth the bother


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 Post subject: Re: UK Fuses
PostPosted: Wed Mar 27, 2019 11:21 am 
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Joined: Thu Oct 11, 2012 8:50 am
Posts: 235
I don't really get the concept of 'the mains here has no polarity' ........

Surely the wires to plugs must be positive in one wire and negative in the other ( plus the earth ) ?

In fact, is all wiring within the EU not standardized in terms of the colours for Pos / NEG / EARTH ??

SO, ( if I am correct ? ) it would be possible to connect a UK wall plug in Portugal to the correct polarity ? And thus the fuse would be controlling the positive input ?


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 Post subject: Re: UK Fuses
PostPosted: Wed Mar 27, 2019 12:04 pm 
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Joined: Thu Oct 22, 2009 1:50 pm
Posts: 1261
Location: Belfast/Luz
The fuse in a UK plug is only there to protect the flex from overloading in certain fault conditions.

It would be possible to connect the line and neutral to a permanently wired UK socket the right way round.

Whether it is deemed safe or acceptable will be covered in the appropriate Portuguese regulations covering the type, quantity and method of connection of sockets.

Generally, changing the plugtop or using an adaptor will be easier than fitting new sockets.


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 Post subject: Re: UK Fuses
PostPosted: Wed Mar 27, 2019 12:12 pm 
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Joined: Thu Oct 11, 2012 8:50 am
Posts: 235
Well ~ it is not so easy these days to change the plugs with which appliances are supplied, as they are fused on, not screwed.

But in any event, is the UK 3 pin design ( with fuse in each plug to the positive inflow of current ) not inherently safer than a plug / system which does not distinguish between positive and negative, and which has no fuse in each plug ?

OK they have the disjunctive device at the mains 'fusebox' but............belt and braces ??


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 Post subject: Re: UK Fuses
PostPosted: Wed Mar 27, 2019 12:54 pm 
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Joined: Thu Oct 22, 2009 1:50 pm
Posts: 1261
Location: Belfast/Luz
Changing a moulded plugtop requires that the original plugtop is cut off and discarded, or it might be possible to fit a complete new flex with moulded plugtop to the appliance.

Because the UK circuit can deliver 30A it is necessary to fuse individual plugtops to protect their attached flexes from overload in certain fault situations. A Portuguese circuit only supplies 16A. Both systems are 'safe' when installed and used according to their respective regulations but mixing and matching doesn't necessarily make a hybrid system safer - it could do the opposite.


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