3 phase supply in a 3 bed detached rural house

[Ayzeee]

If I install a new TPN system at home can I run x3 100amp Supplies from It, so I have x3 100amp
Consumer units, 1 existing & 2 new ?.

 

[westward10]

You have a TP&N supply?

 

[UNG]

While it might be nice to have a 3 phase supply it depends on the capacity of the local network as it can become very very expensive if reinforcement of the local network is needed to provide that supply

 

[Ayzeee]

You have a TP&N supply?…No a single phase 100amp currently

 

[UNG]

I'm assuming the location in your profile is where you want this supply

 

[Ayzeee]

I'm assuming the location in your profile is where you want this supply

No is a new house im about to move into

 

[westward10]

So it has a TP&N supply?

 

[timhoward]

So it has a TP&N supply?

I think he attempted to answer that in #4 but the quote confused things.

OP - what the questions are all driving at is that 'getting a TP&N supply' can be a tortuous and expensive business and pot luck comes into it. I recently helped a customer arrange one and the customer kept changing their mind. By the time they decided to go for it the price had increased from £4000 to £20,000 as in the meantime another local business requested one and basically used up the remaining capacity in the area.

It might be worth starting the other end - what you are wanting 3 consumer units or three phase power for?

 

[Ayzeee]

I think he attempted to answer that in #4 but the quote confused things.

OP - what the questions are all driving at is that 'getting a TP&N supply' can be a tortuous and expensive business and pot luck comes into it. I recently helped a customer arrange one and the customer kept changing their mind. By the time they decided to go for it the price had increased from £4000 to £20,000 as in the meantime another local business requested one and basically used up the remaining capacity in the area.

It might be worth starting the other end - what you are wanting 3 consumer units or three phase power for?

My house, my neighbours house & a spare consumer unit.

 

[James]

I think you should get an electrician that is used to 3 phase installations to come round, discuss requirements and help you fill out the request for a new / upgraded supply.
Whatever the cost is, you are likely to save 5 times that due to the request being filled out correctly.
mistakes can and will cost you a LOT of money.

 

[brianmoooore]

OP - what the questions are all driving at is that 'getting a TP&N supply' can be a tortuous and expensive business and pot luck comes into it. I recently helped a customer arrange one and the customer kept changing their mind. By the time they decided to go for it the price had increased from £4000 to £20,000 as in the meantime another local business requested one and basically used up the remaining capacity in the area.

On the other hand, following an outage to a local television transmitter some years ago, the powers that be decided to install a second feed, which resulted in a third wire being added to the 11kV single phase distribution lines around my area. This has massively reduced the cost of anyone getting a three phase supply for myself and everyone for a few miles around.

 

[timhoward]

Well the simple answer to the original question is "yes".
How easy it is do do varies tremendously. The cost can vary tremendously as the answers you've already had demonstrate.
I echo the suggestion to get some advice, especially if you fill out the DNO form yourself.

I'm curious why the OP wants to become the supplier to their neighbour but I shouldn't be too nosey!

 

[westward10]

I have no idea what you have as a supply now or in the future but yes you can utilise three 100A single phase supplies from a 100A three phase supply. As above, why you wish to supply the neighbouring property and a spare is and will probably remain a mystery without more information.

 

[James]

Well the simple answer to the original question is "yes".
How easy it is do do varies tremendously. The cost can vary tremendously as the answers you've already had demonstrate.
I echo the suggestion to get some advice, especially if you fill out the DNO form yourself.

I'm curious why the OP wants to become the supplier to their neighbour but I shouldn't be too nosey!

To be fair, the DNO forms for a supply upgrade can confuse some electricians.
and we are supposed to understand the questions.

 

[brianmoooore]

If there is a three phase supply available, the normal way of connecting three properties in a row, would be one phase to each.
As for the quote for the work, I honestly believe it depends on the phases of the moon, and whether the person quoting had a fight with his wife that morning.
As I've posted on here before, a quote for my modifying my own supply started off at £0, went to £3000, then £5000, then back to £0 again.

 

[Zerax]

I still would like want need to know why the OP wants a supply for his neighbours property in his property... the spare one, I understand... it's always useful having a spare 100A supply...

 

[pc1966]

There is clearly something more going on than just wanting a spare 100A in case you suddenly find a need for it. Fast EV charger maybe?

But the neighbour supply is an odd one, unless they have something unsatisfactory or off-grid and are willing to contribute to getting a TP&N feed to the site so they can share it. Hopefully the OP can enlighten us?