View the thread, titled "What is this and is it normal? Council electrics" which is posted in UK Electrical Forum on Electricians Forums.

It's been almost 4 years since the council updated all the electrics in the house, at the time they moved the fuse box to the back wall rather than the side wall. Today curiosity got the better of me and I'm just wondering what this is, as it doesn't look normal. At the time a council inspector looked everything over and said it was OK.

Basically wires coming through the wall where the fusebox used to be, going into this little bar with screw things on it, they just plastered over all the wires. From the little bar are more wires going into the fusebox.

What is this, and is it normal/safe?

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Thanks that all makes sense. But in an earth fault condition, that would still become live - and would be the last connected conductive part before ground. Does that not make it potentially more dangerous to be in contact with?
Everything should rise at the same potential or there abouts. Obviously factors like length/resistance of bonding conductors etc can have an influence. The situation you've put forward is no different to touching an exposed conductive part and an extraneous conductive part at the same time whilst an earth fault is occurring. This is why Zs values, bonding, earthing etc is adheared to as part of the protective measure ADS.
 
Everything should rise at the same potential or there abouts. Obviously factors like length/resistance of bonding conductors etc can have an influence. The situation you've put forward is no different to touching an exposed conductive part and an extraneous conductive part at the same time whilst an earth fault is occurring. This is why Zs values, bonding, earthing etc is adheared to as part of the protective measure ADS.

Thanks. Not being a spark myself I have only a limited grasp on how potential works. So in basic terms, yes the entire earth network is 'live' in an earth fault scenario, but anyone touching any part of it has such a tiny potential compared to ground, that they will receive a super low voltage and probably not even notice? And a bird sat on a wire has zero potential so they get no voltage at all.
 
Thanks. Not being a spark myself I have only a limited grasp on how potential works. So in basic terms, yes the entire earth network is 'live' in an earth fault scenario, but anyone touching any part of it has such a tiny potential compared to ground, that they will receive a super low voltage and probably not even notice? And a bird sat on a wire has zero potential so they get no voltage at all.
If you had an Earth fault and the installation Earth was disconnected, then there could be a problem.
 
Yes that's an earth terminal. It's normal to have such a terminal, but not normal for the terminal to be exposed. The earth circuit should be treated and protected as if it were live, as that's literally what it's there for. If there is a fault, to carry the live current back to the earth... So if you get a fault, that becomes live and it's exposed...

I'm not a qualified spark but I'd avoid fiddling with/licking the terminal.
This is an earthing arrangement in a larger building. Perfectly safe and normal to have it exposed
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The OP came on here for advice and reassurance, fair enough as dodgy electrics can be lethal . I don't understand how one or two here seem to be looking down their noses due to the property being a Council House. We all know that it's become more and more difficult to own your home in recent years and I hate this snobbish attitude.
 
...It just seems crazy to leave the final part of the earth network of the entire house exposed like that. What is the point?

The point is that there is no special danger to the MET. It is likely to be connected to gas and water pipework, along with any metal taps, baths, sinks, boilers, etc. If the consumer unit is metal, it'll be connected to that too.

So there's no additional safety to be gained by covering this particular item of earthed metalwork.
 
The OP came on here for advice and reassurance, fair enough as dodgy electrics can be lethal . I don't understand how one or two here seem to be looking down their noses due to the property being a Council House. We all know that it's become more and more difficult to own your home in recent years and I hate this snobbish attitude.
I see your point, I personally think i would rather live in the old social / council housing around here than some of the modern fancy ones. they were built well in 50s and 60s and had a decent clerk of works from council sign them off before anybody could move in, they have far fewer issues than a lot of the newer homes. But people are too up themselves to see the benefits of buying one, bigger rooms and more affordable as less maintenance. its all about keeping up with the jones's
 
Spot on mate, I remember wiring some new council homes around 30 years ago and the Clerk of Works would check the socket heights with a steel rule and measure the centre of each room to check the lights were spot on, he couldn't beat me though. :)
 

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