Small garage circuit

[mavezy]

I've mocked up a small garage circuit, does this look fine, any issues? thanks

 

[mickegh]

It looks all wrong to me anyhow

 

[mainline]

I've mocked up a small garage circuit, does this look fine, any issues? thanks

View attachment 117919

What's the length of the swa

Any extraneous in the garage ?

 

[mavezy]

10 metre swa run, no extraneous. cheers

 

[DPG]

It looks all wrong to me anyhow

All of it? Why?

 

[mainline]

All of it? Why?

Maybe he’s blind

 

[MDJ]

personally I would go bigger than 2.5 to the garage from the inside DB, you will use all sorts of power eventually, 2.5 is too small really, and go bigger than a 20 amp MCB via the RCD as well, JMO.

 

[mainline]

I would put the feed on its own supply, as a fault in the garage will take half the house out

 

[DPG]

I would put the feed on its own supply, as a fault in the garage will take half the house out

Ideal world though. It's reasonable to feed from one half of the CU for a modest garage install.

 

[mavezy]

cheers for the input guys

 

[Taylortwocities]

Better to adapt/convert the house CU so that the garage is fed from an MCB that is not RCD-protected.
(aka a "high-integrity" CU - who invented that ridiculous title?)
Locate the RCD at the garage end to replace the isolation switch. Then, if there is an earth fault, that will only trip the garage RCD and not half the house.
The SWA does not need RCD-protection, as it runs all the way from the house CU to the garage.

 

[westward10]

Depends if ADS is satisfied without an RCD.