Smart meters (again?)

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Syd
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Joined: 23 Sep 2018, 2:27pm

Re: Smart meters (again?)

Postby Syd » 16 Oct 2020, 8:07am

GranvilleThomas wrote:<SNIP>

How did you find out the polarity was reversed?

By using a socket tester similar to that in my previous post.

Something I do every time I move into a new home or change any sockets.

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simonineaston
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Location: Live & work in Briz'l

Re: Smart meters (again?)

Postby simonineaston » 16 Oct 2020, 8:18am

gave me evidence to get Western Power out to fix it.
Proudest moment of my life (well, one of them) was when the chaps from Western Power came to connect up my re-wired house, what I had done myself, and they had a quick look round and said it was a tidy-looking job :-)
ttfn, Simon in Easton
(currently enjoying a Moulton TSR & a nano Brompton...)

Oldjohnw
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Location: Northumberland

Re: Smart meters (again?)

Postby Oldjohnw » 16 Oct 2020, 9:52am

simonineaston wrote:
gave me evidence to get Western Power out to fix it.
Proudest moment of my life (well, one of them) was when the chaps from Western Power came to connect up my re-wired house, what I had done myself, and they had a quick look round and said it was a tidy-looking job :-)


I understand that. 40 years ago I refurbished a semi-ruined cottage and did the wiring myself. When Scottish Power came to reconnect it was straightforward with no issues. I did it with a Reader's Digest manual.

A number of years later I had an extension built and the wiring was done by an expensive electrician. Scottish Power had to revisit three times.
John

GranvilleThomas
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Location: Caerphilly

Re: Smart meters (again?)

Postby GranvilleThomas » 16 Oct 2020, 2:20pm

Syd wrote:
GranvilleThomas wrote:<SNIP>

How did you find out the polarity was reversed?

By using a socket tester similar to that in my previous post.

Something I do every time I move into a new home or change any sockets.


That's a good idea, not many people would think of doing that.

PDQ Mobile
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Joined: 2 Aug 2015, 4:40pm

Re: Smart meters (again?)

Postby PDQ Mobile » 16 Oct 2020, 2:23pm

And in much of Europe a two pin non-earthed appliance plug is extremely common on small tools lights etc.
Goes in either way!!
Seems to function.

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Syd
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Joined: 23 Sep 2018, 2:27pm

Re: Smart meters (again?)

Postby Syd » 16 Oct 2020, 3:00pm

PDQ Mobile wrote:And in much of Europe a two pin non-earthed appliance plug is extremely common on small tools lights etc.
Goes in either way!!
Seems to function.

Two pin, non-earthed are double insulated devices. Removes a number of risks.

kwackers
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Location: Warrington

Re: Smart meters (again?)

Postby kwackers » 16 Oct 2020, 3:07pm

PDQ Mobile wrote:And in much of Europe a two pin non-earthed appliance plug is extremely common on small tools lights etc.
Goes in either way!!
Seems to function.

It's really the same in this country - or would be if the earth pin didn't enforce a physical standard.
Most devices don't care which way round they're plugged in and most small stuff doesn't have an earth lead.

I did have the weirdest fault once, so weird I had to get an electrician to look because I couldn't work out what was happening.
Basically the RCD tripped. When I tried to reset it then it tripped again, so I turned off all the circuits, reset the RCD and turned them on one at a time. When I got to the kitchen the RCD tripped again so I turned the kitchen off and reset the RCD and it tripped again.
After a bit of fiddling around I discovered it would randomly trip whenever I turned a circuit on - so I might be able to turn on the kitchen or I might not.
Even weirder if I turned on a circuit it might be fine unless I turned on a device on that circuit which then might (also randomly) trip the RCD.

So basically turning anything on may (or may not) trip the RCD.

I pulled the front off the consumer unit and spent some time looking for live to earth shorts and couldn't find anything obvious even though some of the readings really didn't make any sense.
In the end I went to bed and called the electrician.

They spent a couple of hours in the house and finally found the fault - an earth to neutral short in a socket I didn't know existed because it was behind a wardrobe. (Why it waited years before deciding to short out who knows).

Once you realise it's an earth to neutral short then it makes sense but I'd never seen one before.


Prior to this I did fix an issue whereby occasionally when it rained the RCD would trip - spent ages checking outside lights etc and eventually discovered whoever had built the house had run an armoured cable under the drive to the front gates where it was coiled up under an hedge presumably waiting to be used for electric gates or something.
All fine and good - but it was live as well as unterminated!
(It seemed a handy thing for the future so I just fitted an isolating switch and turned it off).

paddler
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Joined: 8 Oct 2017, 9:13am

Re: Smart meters (again?)

Postby paddler » 16 Oct 2020, 8:03pm

<SNIP>
Not uncommon to find ring trip faults on phone extensions behind cabinets or beds, especially if the occupants slept with the windows closed.

Dave

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[XAP]Bob
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Re: Smart meters (again?)

Postby [XAP]Bob » 17 Oct 2020, 5:24pm

Earth to neutral faults are interesting to diagnose...
A shortcut has to be a challenge, otherwise it would just be the way. No situation is so dire that panic cannot make it worse.
There are two kinds of people in this world: those can extrapolate from incomplete data.