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22900013A

Member Since: 23 Dec 2010
Location: Oxfordshire
Posts: 3150

2011 Defender 110 Puma 2.4 USW Keswick Green

Bian Considine wrote:
Bluest wrote:
National grid are confident their network can cope, and that’s what gets trotted out by The government ifanyone questions the electrical supply. What they never talk about is the local distribution network which is apparently far from being up to the job.

If you want the truth about how the electricity distribution will cope ask a National Grid employee next time you see them working.

National grid provide electricity transmission. Your local network operator deals with distribution and it is they whom you would need to speak to. 2011 110 USW
1973 Series III 1-Ton
1972 Series III 1-Ton Cherrypicker
1969 IIA 1-Ton
1966 IIA 88"

27th Jul 2020 3:26pm

22900013A

Member Since: 23 Dec 2010
Location: Oxfordshire
Posts: 3150

Bian Considine wrote:
My house was built in 1928 when electrical demand was low. The cable conductors look to be 7/044" which is roughly equivalent to 6.0mm2
The incoming voltage goes up & down like a yo, yo, with frequent "brown outs" requiring the installation of a number of UPS units installed throughout the property for sensitive equipment.

That sounds extremely small. I would expect minimum 25mm2, these days it's almost always 35mm2.

The incoming voltage fluctuation is likely either a fault on the cable or something back up the supply chain. Transformer breaking down, trees in line etc. 2011 110 USW
1973 Series III 1-Ton
1972 Series III 1-Ton Cherrypicker
1969 IIA 1-Ton
1966 IIA 88"

27th Jul 2020 3:32pm

Bian Considine

Member Since: 25 Jul 2020
Location: Margate
Posts: 53

Supacat wrote:

Wow - what size is the meter fuse?

100 amp ! (I checked when my meter was replaced).

27th Jul 2020 4:08pm

Bian Considine

Member Since: 25 Jul 2020
Location: Margate
Posts: 53

22900013A wrote:

That sounds extremely small. I would expect minimum 25mm2, these days it's almost always 35mm2.

The incoming voltage fluctuation is likely either a fault on the cable or something back up the supply chain. Transformer breaking down, trees in line etc.

It is small & EDF wont do anything about it because they say it's the responsibility of UKPN & they wont "because you do dont have a contract with us".

Been like it for the 40 odd years I've lived here. Still, EDF have paid for the replacement of a central heating controller & a PC PSU (pre UPS days).

27th Jul 2020 4:16pm

Supacat

Member Since: 16 Oct 2012
Location: West Yorkshire
Posts: 11018

2013 Defender 110 Puma 2.2 XS DCPU Keswick Green

Bian Considine wrote:
Supacat wrote:

Wow - what size is the meter fuse?

100 amp ! (I checked when my meter was replaced).

Goodness.

27th Jul 2020 4:20pm

Zed

Member Since: 07 Oct 2017
Location: In the woods
Posts: 3310

2010 Defender 110 Puma 2.4 XS CSW Santorini Black

Government looking at E highways for road freight.

https://www.theguardian.com/environment/20...says-study

Link to the paper in article. WARNING.
This post may contain sarcasm.

27th Jul 2020 5:21pm

markb110

Member Since: 22 May 2010
Location: Guildford
Posts: 2643

With all the U turns of recent by the time we get to 2035 I think we will be back using horse and carts and velocipedes by then.

27th Jul 2020 5:24pm

Supacat

Member Since: 16 Oct 2012
Location: West Yorkshire
Posts: 11018

Zed wrote:
Government looking at E highways for road freight.

https://www.theguardian.com/environment/20...says-study

Link to the paper in article.

I read that article and thought it was an excellent idea, in theory, but can't see it working in any real world environment. If you extrapolate from the number of bits of shredded artic tyres you see on major routes to pantograph maintenance, I shudder to think of the length of overhead line that will be being brought down on a daily basis.

27th Jul 2020 5:32pm

22900013A

Member Since: 23 Dec 2010
Location: Oxfordshire
Posts: 3150

Bian Considine wrote:
22900013A wrote:

That sounds extremely small. I would expect minimum 25mm2, these days it's almost always 35mm2.

The incoming voltage fluctuation is likely either a fault on the cable or something back up the supply chain. Transformer breaking down, trees in line etc.

It is small & EDF wont do anything about it because they say it's the responsibility of UKPN & they wont "because you do dont have a contract with us".

Been like it for the 40 odd years I've lived here. Still, EDF have paid for the replacement of a central heating controller & a PC PSU (pre UPS days).

27th Jul 2020 8:06pm

Roger

Member Since: 26 Apr 2018
Location: Hampshire
Posts: 71

2007 Defender 110 Puma 2.4 SW Java Black

Bian Considine wrote:
My house was built in 1928 when electrical demand was low. The cable conductors look to be 7/044" which is roughly equivalent to 6.0mm2
The incoming voltage goes up & down like a yo, yo, with frequent "brown outs" requiring the installation of a number of UPS units installed throughout the property for sensitive equipment.

I thought a "brown out" was when you didn't get to the toilet in time!

27th Jul 2020 8:32pm

Bian Considine

Member Since: 25 Jul 2020
Location: Margate
Posts: 53

Zed wrote:
Government looking at E highways for road freight.

https://www.theguardian.com/environment/20...says-study

Link to the paper in article.

Read through that - be interesting to see how they intend to keep the pantographs in contact with the catenary wires ? Unless the pantographs are a marketing gimmick so that we won't think they have re-invented the trolleybus.

Of course, they could link all the trucks together, remove the tyres, put some small girders down & hey-presto - all fully guided. But wait, we already have them - called railways......

27th Jul 2020 10:46pm

Bian Considine

Member Since: 25 Jul 2020
Location: Margate
Posts: 53

22900013A wrote:

You need to contact your local network operator, not whoever you pay your bills to. Sounds like you live in the UKPN region but pay to EDF? Assuming that's correct, UKPN would be responsible for the meter and everything going into the house/switchboard area (not by area of expertees I will admit) and UKPN are responsible for the cable in the ground/up the poles. So you need to contact UKPN. I'd be worried having such tiny cables as you describe with a 100A fuse! Easy to overheat such a setup.[/quote]

As I stated UKPN will not do anything because "I don't have a contract with them". Which I don't - we have a contract with EDF.
EDF themselves fitted the fuse, installed 25mm2 meter tails and the meter which clearly states it is their property and their responsibility on it.
All of this is documented & EDF have been informed in writing that they will be held responsible should any incident arise by their failure to insist that their sub-contractor UKPN to rectify the situation.
As for the risk, the mains equipment is in a 1 hour rated enclosure complete with smoke detector connected to a BS5839 installed & maintained fire alarm system. Also, there is a maintained CO2 fire extinguisher to hand.
TBH, we don't actually draw a lot from the grid as we have a 4kW solar panel array and a power vault. It's just the yo, yo voltage that is a problem.
If all else fails then I run the 4.5kV generator !

27th Jul 2020 11:00pm

Supacat

Member Since: 16 Oct 2012
Location: West Yorkshire
Posts: 11018

Interesting to read about UKPN, where I live the network is maintained by Northern Powergrid. I've had no problem calling them out to a telegraph pole in my garden and they were more than happy to undertake remedial works. I dealt with them direct and there was never a mention of contracts.

28th Jul 2020 5:23am

22900013A

Member Since: 23 Dec 2010
Location: Oxfordshire
Posts: 3150

Well obviously something is amiss here. It sounds like EDF are your electricity supplier and UKPN are your DNO. You won't have any kind of contract with UKPN. When you talk about small cables I assume you mean the ones coming into your home from a cable in the road or up a power pole nearby. In which case they are UKPNs responsibility.

In terms of contracts with UKPN it would he like having a contact with your binmen, it just isn't done that way.

If in doubt I would suggest you contact OFGEM as from what I've read here your setup sounds horrendous, especially as you seem to be saying the meter tails are bigger than your incoming supply cable. 2011 110 USW
1973 Series III 1-Ton
1972 Series III 1-Ton Cherrypicker
1969 IIA 1-Ton
1966 IIA 88"

28th Jul 2020 12:33pm

Bian Considine

Member Since: 25 Jul 2020
Location: Margate
Posts: 53

Yes, OFGEM are my next step in my long running disputes with EDF (there are more than one).

It's an underground supply & AFAIK we are at the very end of the "leg"from the substation.

BTW, I do have a "contract" with my "waste management and disposal technicians" - I tip them at Christmas & they take all of my rubbish (not just whats in the Wheelie Bin).

28th Jul 2020 2:42pm

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