joining two feeds into one consumer unit.

[jouleflow]

I have two 40A swa cables from my main house consumer unit. This consumer unit serves the whole house and the two swa cables serve two consumer units in an extension. One is upstairs and has very little demand and one is downstairs with a higher demand.
My question is:
Can I add the upstairs swa into the downstairs consumer unit allowing more demand and an appropriate t+e cable back to feed the upstairs cu.
Basically I want to join the two feeds together either in the downstairs cu or another way.

This will be done by a qualified sparky but I just want to know if it is feasable before I hire him.

Thanks

Greg

 

[James]

You can’t split the phases to one cable and the N to the other cable.
again, you could have a situation where eddy currents heat the cable.
sureley the spark has given you a specification for the cable run?
I would discuss this with them.

 

[DPG]

I'd be getting an electrician in personally.

 

[westward10]

How many times do you have to be told. Do you really have an electrician involved.

 

[jouleflow]

How many times do you have to be told. Do you really have an electrician involved.

Yes I do, I thought it might be a good place to ask here while I was online.
No need to be rude, if you don't want to advise others politely then perhaps a forum is not the place to spend your time.

 

[DPG]

Yes I do, I thought it might be a good place to ask here while I was online.
No need to be rude, if you don't want to advise others politely then perhaps a forum is not the place to spend your time.

Westward regularly advises people on here and is very knowledgeable and respected.

There is no point you keeping asking questions when it is obvious you are well beyond your limits with this one.

 

[jouleflow]

Westward regularly advises people on here and is very knowledgeable and respected.

There is no point you keeping asking questions when it is obvious you are well beyond your limits with this one.

No problem, I've clearly misunderstood the forum guidelines and apologize for that. I did not realize that the forum was only for qualified electricians. I'm just too curious. My solar installer put a chock block in a 100A isolator that would have burned my house down had my wife not spotted the smoke coming from the switch. So I like to know a little about my system to keep safe when an electrician is not here.