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When did this earthing last meet standards?
Looking round a house (with a kitchen refit done in 2013 and a boiler in 2010...) and came across some bare wire earths
https://flic.kr/p/2fGbsTq |
When did this earthing last meet standards?
On Friday, 3 May 2019 16:30:16 UTC+1, wrote:
Looking round a house (with a kitchen refit done in 2013 and a boiler in 2010...) and came across some bare wire earths https://flic.kr/p/2fGbsTq Very new service head and meter on a delightful old board ... I think bare earths are pre 1966. Green earths 1966-77 (although not always sleeved inside back boxes etc). Owain |
When did this earthing last meet standards?
The name plate on top of the wood board is readable as Cambridge electricity supply company which according to https://discovery.nationalarchives.g...ails/c/F176409 dates it between 1892 and 1948.
So I would date the bare earth wires to between the above years. I personally would update the earth bonding and also I would check for lead water pipes and also for steel gas pipes which are prone to corrosion. The consumer unit is of the rewireable cart type which is of a later date but clearly does not have MCB or RCD or RCBO devices. I would also consider replacing the consumer unit. The Henley block also wants checking as some of the twin and earth cables may have been wired into the Henley block rather than via the consumer unit. |
When did this earthing last meet standards?
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When did this earthing last meet standards?
On Friday, 3 May 2019 16:30:16 UTC+1, wrote:
Looking round a house (with a kitchen refit done in 2013 and a boiler in 2010...) and came across some bare wire earths https://flic.kr/p/2fGbsTq It doesn't meet the regs now or since the 70s. Not sure why it's a big issue, the setup could do with some work is usually what counts when buying. You've got pvc cable, that's the main thing. NT |
When did this earthing last meet standards?
On Saturday, 4 May 2019 08:27:30 UTC+1, wrote:
You've got pvc cable, that's the main thing. I once lived in a house that still had lead cable and ironclad DP fuseboxes. Lovely stuff. The phone line was twin bare wires to insulators and braided insulated cables internally to a bakelite bell. Owain |
When did this earthing last meet standards?
Maybe the slaving has perished or just fallen off? I have a lot of bare wire
earths in this house and nobody has died. Brian -- ----- -- This newsgroup posting comes to you directly from... The Sofa of Brian Gaff... Blind user, so no pictures please Note this Signature is meaningless.! wrote in message ... Looking round a house (with a kitchen refit done in 2013 and a boiler in 2010...) and came across some bare wire earths https://flic.kr/p/2fGbsTq |
When did this earthing last meet standards?
On 04/05/2019 09:58, Brian Gaff wrote:
Maybe the slaving has perished or just fallen off? I have a lot of bare wire earths in this house and nobody has died. Its not the fact that its bare as such that is the problem directly - although it does hint at the age of the installation, and hence other things you can expect to find. Its likely that much of the earthing will be done using undersized wires. Its also more likely for earths to be disconnected in places they are needed, and quite probable the lighting circuits are completely unearthed. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
When did this earthing last meet standards?
On 04/05/2019 09:58, Brian Gaff wrote:
Maybe the slaving has perished or just fallen off? I have a lot of bare wire earths in this house and nobody has died. And should also add, the lack of any RCD protection will make things like equipotential bonding (both main and supplementary) for more important as a method of reducing shock injury risk. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
When did this earthing last meet standards?
On Fri, 3 May 2019 08:30:12 -0700 (PDT), wrote:
Looking round a house (with a kitchen refit done in 2013 and a boiler in 2010...) and came across some bare wire earths https://flic.kr/p/2fGbsTq What is the terminal block made of? Obviously before PVC. Was it porcelain or that stuff with a rough feel that looked like a stone? It doesn't look white enough to be porcelain. |
When did this earthing last meet standards?
On 03/05/2019 22:06, John Rumm wrote:
I am not convinced about the T&E into the Henley - I can only see tails of various sizes. The T&E you can see just looks like that pair of them above the board clipped to the wall continuing down. I can't see where those slimmer tails from the henley go either. I don't think that "slimmer" is the correct word. If the meter tails are 25mm and double insulated (although I suspect that they are 16mm) a simple comparison of od diameter from the photo says that the "slimmer" cables are "seriously under sized". -- Adam |
When did this earthing last meet standards?
On Sat, 4 May 2019 17:29:41 +0100, ARW
wrote: On 03/05/2019 22:06, John Rumm wrote: I am not convinced about the T&E into the Henley - I can only see tails of various sizes. The T&E you can see just looks like that pair of them above the board clipped to the wall continuing down. I can't see where those slimmer tails from the henley go either. I don't think that "slimmer" is the correct word. If the meter tails are 25mm and double insulated (although I suspect that they are 16mm) a simple comparison of od diameter from the photo says that the "slimmer" cables are "seriously under sized". Does it matter if earthing cables are undersized? They will only be used very occasionally and for short periods of time. |
When did this earthing last meet standards?
On 04/05/2019 08:27, wrote:
On Friday, 3 May 2019 16:30:16 UTC+1, wrote: Looking round a house (with a kitchen refit done in 2013 and a boiler in 2010...) and came across some bare wire earths https://flic.kr/p/2fGbsTq It doesn't meet the regs now or since the 70s. Not sure why it's a big issue, the setup could do with some work is usually what counts when buying. You've got pvc cable, that's the main thing. How do you know he has PVC cables? All you can see is that there are two PVC cables. The rest could be any old ****. -- Adam |
When did this earthing last meet standards?
On 04/05/2019 16:56, Scott wrote:
On Fri, 3 May 2019 08:30:12 -0700 (PDT), wrote: Looking round a house (with a kitchen refit done in 2013 and a boiler in 2010...) and came across some bare wire earths https://flic.kr/p/2fGbsTq What is the terminal block made of? Obviously before PVC. Was it You mean the exposed main earth terminal? porcelain or that stuff with a rough feel that looked like a stone? It doesn't look white enough to be porcelain. Usually plated brass: https://www.tlc-direct.co.uk/Products/TLEB4.html -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
When did this earthing last meet standards?
On 04/05/2019 17:29, ARW wrote:
On 03/05/2019 22:06, John Rumm wrote: I am not convinced about the T&E into the Henley - I can only see tails of various sizes. The T&E you can see just looks like that pair of them above the board clipped to the wall continuing down. I can't see where those slimmer tails from the henley go either. I don't think that "slimmer" is the correct word. If the meter tails are 25mm and double insulated (although I suspect that they are 16mm) a simple comparison of od diameter from the photo says that the "slimmer" cables are "seriously under sized". Depends on what they are feeding - quite often you see very slim tails feeding things like Economy 7 time switches. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
When did this earthing last meet standards?
On Saturday, 4 May 2019 17:38:35 UTC+1, Scott wrote:
On Sat, 4 May 2019 17:29:41 +0100, ARW wrote: On 03/05/2019 22:06, John Rumm wrote: I am not convinced about the T&E into the Henley - I can only see tails of various sizes. The T&E you can see just looks like that pair of them above the board clipped to the wall continuing down. I can't see where those slimmer tails from the henley go either. I don't think that "slimmer" is the correct word. If the meter tails are 25mm and double insulated (although I suspect that they are 16mm) a simple comparison of od diameter from the photo says that the "slimmer" cables are "seriously under sized". Does it matter if earthing cables are undersized? They will only be used very occasionally and for short periods of time. In Rodney's case no. For the rest of us yes, though the risk is not great. NT |
When did this earthing last meet standards?
On Saturday, 4 May 2019 17:55:40 UTC+1, ARW wrote:
On 04/05/2019 08:27, tabbypurr wrote: On Friday, 3 May 2019 16:30:16 UTC+1, wrote: Looking round a house (with a kitchen refit done in 2013 and a boiler in 2010...) and came across some bare wire earths https://flic.kr/p/2fGbsTq It doesn't meet the regs now or since the 70s. Not sure why it's a big issue, the setup could do with some work is usually what counts when buying. You've got pvc cable, that's the main thing. How do you know he has PVC cables? All you can see is that there are two PVC cables. The rest could be any old ****. The cables below the board are all pvc too. NT |
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