Temporary Feed to Garage 50 Amp

ElectronMike

• #1

Hello All.
When I started building my own house in 1985 the idea was to have one electric board supply cable feed our main house with a second supply fed to our garage/flat .
The electric board supplied the 200Amp single al core swa cable, I laid it to the house then another cable from the house to the garage/flat.
What we ended up was only using the main supply to the house (100Amp main fuse 80Amp meter).
Now I'm getting to the stage of fitting out the garage/flat I needed a permanent supply instead of the temp one.
Talking to our electric supplier and asking about a second meter/supply for the flat, after talking it through with them they said use that underground cable that goes to the flat and run it from our supply side and it will be cheaper in the long run.

From a 'Henley block' I will feed into a 100amp isolator > 63A mcb then use the above underground cable to the garage/flat.
At the garage/flat end (15M away) from the underground cable > 100Amp isolator > Henley block.
Then
One pair tails will feed the flat cu.
Another will feed the cu in the garage.
Another pair of tails will feed to an isolator and 40A mcb to a temp supply to my workshop via an underground plastic duct 40M long, (until I can put in a permanent feed to my workshop from another direction from my house.)
I have some 4mm single core Butyl cable and was thinking of putting in two pairs in parallel (joint capacity of 60A). then in the workshop >40A rccb > cu etc.
Comments please.
I will talk about earthing later because the auto saves has lost half of my post and it's late and must get to bed.

Last edited by a moderator: Jan 4, 2012

Knobhead

• #2

I'm an ex Derbyshire lad and I'm pulling the plug, I'm tired out!
You arranged the original supply, so why change it now?

Last edited by a moderator: Jan 4, 2012

• #6

I go with concentric as well

• #7

I'm still awaiting the earthing .....................I feel an export the earth discussion is in good order, just to start the year off:lol:

• #9

Lol cheers mate ......................yes I got a call from Lloyds asking me did I know that it was customary for customers to deposit money to them and not the other way round, still has my lass tells me there has not been a shroud made yet that as pockets in it .....................

I saw that you stayed over there, so now that Christmas is out of the way, you'll be starting it all over again in a week or so with the Chinese New Year and it is the dragon I believe

ElectronMike

• #15

QUOTE....The electric board supplied the 200Amp single al core swa cable, I laid it to the house then another cable from the house to the garage/flat.As a matter of interest, what makes you think this concentric cable is rated at 200A?? Personally i would doubt that very much, especially as it was only taken to a single point then extended to the other location. Separate metering normally means separate supplies. Most single phase cut-outs are only rated at 100A that includes internal connection blocks also. So doubtful they were going to daisy chain off of the house cut-out too supply another possible 100A load/installation...

That's what the guy said who delivered it 200A .
But it only looks like 100A stuff to me as it's only about 20mm OD.
There original idea was when I was ready they were going to daisy it off the spare side of the 100A main cut out fuse.
We are talking 27 years ago.

Last edited by a moderator: Jan 5, 2012

thomasridn1954.blogspot.com

Source: https://www.electriciansforums.net/threads/feed-to-garage-flat-also-temp-feed-to-workshop.48794/

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