When does 3 phase supply become 230V in domestic consumer unit? | Page 4 | on ElectriciansForums

Discuss When does 3 phase supply become 230V in domestic consumer unit? in the Domestic Electrician Forum area at ElectriciansForums.net

HappyHippyDad

-
Esteemed
Arms
Supporter
Joined
Dec 18, 2011
Messages
5,279
Reaction score
6,527
Location
Gloucestershire
I went along this morning to quote for an EVCP install.

I thought it was a domestic house but it was a B@B. It has a 3 phase supply. I always pass on commercial or 3 phase as it is outside of my remit. However, I am toying with the idea of fitting this EVCP IF I can fit it from a single phase supply.

I am unsure where to take power from. Usually I would either split the meter tails or use a spare way in the CU. I could use a spare way in an existing CU at the property but it may be better to take power from somewhere in the meter room. However, I am unsure where it is 230V and where it is 400V.

You can see in the pictures there is a 3 phase cut out, to meter, to isolator, to Henly blocks, to separate meters, then to switched fuses, then off to each area. Where would I split the tails? Where is it 230V? It must be 230V coming from the switched fuse (B) going to the single phase consumer unit in the annex (because it's a single phase board). But, another switched fuse (A) goes off to the main house which has a 3 phase board. There is no difference with regards the cables leading up to either of these switched fuses, (i.e they both have a separate meter and a single Line and neutral going to them), so how is one of them 230V and the other 400v?

cutout 3phase.jpg

diagram.jpg

left bank.jpg

Right bank.jpg

whole set up.jpg
 
Agree, however we are getting more and more cars able to take in excess of 7.4kW, just a year ago there were very very few, but within the last year alone Renault, BMW, telsa and BYD have all introduced 11 or 22kW chargers within their cars.

Over the short time EVs have developed they have gone as standard from 2.3kW through 3.6kW, 7.4kW, and now 22kW.

I would expect within the next year or so pretty much every new EV will have the capability of greater than 7.4kW.

They have to really, because as smart control starts operating, it will shut down for periods, so EVs won't be able to rely on low rates for long times.
Agree with you, a lot of what we are fitting now, will within 18-24 months be out of date. My Kona EV has 11 kw charge function on board. My charger on wall is 7kw.
It reminds me of the growth in computer specs in the late 90s, early 2000s, memory, processor speed and storage were growing at ever quicker rates.

Several years from now I think there will be a much better OCCP and communication between different brands, the grid and smart functionality in general. coupled with links to the cloud, you will I think see major advances in the way chargers integrate with the grid at local level according to demand.
 

Reply to When does 3 phase supply become 230V in domestic consumer unit? in the Domestic Electrician Forum area at ElectriciansForums.net

News and Offers from Sponsors

  • Article
Join us at electronica 2024 in Munich! Since 1964, electronica has been the premier event for technology enthusiasts and industry professionals...
    • Like
Replies
0
Views
244
  • Sticky
  • Article
Good to know thanks, one can never have enough places to source parts from!
Replies
4
Views
717
  • Article
OFFICIAL SPONSORS These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then...
Replies
0
Views
686

Similar threads

This was posted this week, on topic ....... https://niceic.com/newsletter/omission-of-overload-protection/?dm_i=7G1W,7GCE,K4L2A,WHET,1
Replies
8
Views
690
Just stick the 63amp fused connector before the Henley block , or Lucy block as you call it, and your all good, as for your 2nd point, , the...
Replies
1
Views
984

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

YOUR Unread Posts

This website was designed, optimised and is hosted by untold.media Operating under the name Untold Media since 2001.
Back
Top