Supply cable and switch gear

[Telgee]

hi there all ...a friend is having works done to there lord of the Manor House and are converting a barn to a 2 bed house also having a car port with 3 electric fast charge car chargers
Car port is 70 metres away
Barn is 100 metres away
Supply is being moved in the house to new location out of the cellar and they are already being charged £9000 for that which is 3 phase so they wanna save some cash by running there own supply cables for carport and barn conversion what cable should they run ?? Also what other things need to be purchased and put in place until they hire a sparky to connect ??
Any advice gratefully accepted

 

[KentSparky]

Ok i have learnt something new, so thanks, but why not provide your feedback in such a way that it helps the op as well. Suggest a maximum run length and maybe the op can do it via a couple of pits. We're all people here and if i am coming across rudely please let me know as i am in no way intending that. Typing on mobile necessitates brevity so that could easily give a wrong impression.i would like to help others and I'm genuinely interested in what people go through.

I think what you are getting from the replies is that it's just not feasible to expect to be able to save a few grand on this project by getting information from the internet. If you can save money then we all want to do that but sometimes you just have to dig in your pocket and pay up.

 

[Spoon]

A gentleman never tells

You are a gorilla though..... Tell...

 

[Spoon]

I don't know why you're always down on me like a ton of bricks. Maybe i come across wrongly or i am breaking some roles on here, feel free to point me at which ones.
As it is, it seems I'm the only one giving any constructive suggestions to the op, so why not give yours instead of attacking my suggestion and myself?

This is text mate. It's hard to interpret them correctly all the time...
I just imagine the person sending the text running through a field of flowers just wearing a mankini..... It's surprising how posts then come across a lot more fun and less offensive...

 

[MJPD29]

Are you the friend

 

[Andy78]

so for the car port the load for 3 charges is 22kw each or 66kw total So reading what I have does that equate to roughly each charger 10 amp for 240v supply and less for 400v supply ?? Swa?? What size ?? How many cables that can be buried in the dirt carry that over a 70m distance with the voltage drop included ?? Will the earth be suffice if 3 core swa and one of the cores be used or does it need to be run seperately or use earth rod ??

These are the things that need to be designed and answered by the electrician you employ. We could tell you all sorts then someone turn up to do the job and tell you it's all wrong and to start again.

What I will say is that having 3 x 22kW charging stations the first thing that needs to be assessed are the potential loading calulations.

 

[Pete999]

Are you the friend

He's no friend of mine Matthew

 

[MJPD29]

I get the feeling the friend he is asking on behalf of might be him, when there is an opportunity to save money then why not, but this requires professional help

He's no friend of mine Matthew

 

[Pete999]

I get the feeling the friend he is asking on behalf of might be him, when there is an opportunity to save money then why not, but this requires professional help

You are more than likely correct in your assumption Matt, annoying isn't it, if he want's help fess up and come clean. No harm in doing just that.

 

[elsparko]

Wow, you want to risk internet advice on 170 metres of expensive cable ...

I wouldn't

like the guy who came here asking for 60 odd grand worth of 90mm 4core? for a shed conversion or some such nonsense?

 

[elsparko]

He's no friend of mine Matthew

 

[Spoon]

I get the feeling the friend he is asking on behalf of might be him, when there is an opportunity to save money then why not, but this requires professional help

Glad you cleared that up mate.... I thought the post was direct at me and I would have to try and find a friend on here....

 

[Pete999]

Glad you cleared that up mate.... I thought the post was direct at me and I would have to try and find a friend on here....

You could always try me Spoon.

 

[Spoon]

You could always try me Spoon.

Yaaaaaay... I have a friend....
I'll give you the £20 later on mate...

 

[Pete999]

Yaaaaaay... I have a friend....
I'll give you the £20 later on mate...

A couple of bottles of rouge vino will do Mate, I'll PM my address

 

[MJPD29]

Friend payments, I come cheap if you need any more