Garage consumer unit

[ricosuave]

Hi all, have just fitted garage consumer unit it has RCD, 32A breaker for ring and 6A breaker for lights can i use 2.5 cable from house consumer unit to supply garage consumer unit?
House c/u is about 3 meters from garage c/u and also would house circuit breaker have to be 32A or 40A?

I am new to forums and dont know where this will be posted or how to get a reply so can you email me the answer to my question and how to use these forums many thanks, [email protected]
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[cagedanimal2010]

no and no, you want to put a 2.5 on a 40a mcb??

please contact your local spark!!

danny

 

[telectrix]

3 no's. garage sockets on 16A unless it's a ring. no more. get a sparks in.

 

[Qedelec]

As he says, no. 2.5 is rated at 27 amps max so IF you are supplying by 2.5 SWA then max RCBO should be 20 amps.

 

[Deleted member 9648]

Hi all, have just fitted garage consumer unit it has RCD, 32A breaker for ring and 6A breaker for lights can i use 2.5 cable from house consumer unit to supply garage consumer unit?
House c/u is about 3 meters from garage c/u and also would house circuit breaker have to be 32A or 40A?

I am new to forums and dont know where this will be posted or how to get a reply so can you email me the answer to my question and how to use these forums many thanks, [email protected]
​

Have you notified building control?

 

[IQ Electrical]

You've had good advice, your post shows a lack of competence to complete, test and notify this installation, swallow your pride and call an electrician.

 

[ricosuave]

The garage consumer unit came with the 32 and 6 amp circuit breakers and the sockets are on a ring circuit, so is this ok

 

[BillyTheSparks]

Just because it came with those MCBs doesn't meen that you have to use them. I would wire the garage with 2.5mm^ SWA fused at 20a, then wire the sockets as a Radial using a 16a/20a MCB, and the lights using 1.5mm^ T&E fused at 6a. Please Please. Get someone in who knows what they are doing, and is safe.

 

[Jimmyb]

As he says, no. 2.5 is rated at 27 amps max so IF you are supplying by 2.5 SWA then max RCBO should be 20 amps.

swa is rated over 27a so 32a mcb would be ok as it around 32-36 depends on suppier, 2.5mm 6942X 2 core SWA Steel Armoured Cable

 

[IQ Electrical]

This is a 3 Metre distribution circuit, why the fascination with 2.5mm ?

 

[ricosuave]

The garage is attached to the house, I am wiring the garage with 2.5mm T&E ring for sockets on 32A C/ breaker like as you have in the main house and 1.5mm T&E radial on 6A C/breaker for lights.
What am I doing wrong then?

 

[Adam W]

Hi all, have just fitted garage consumer unit it has RCD, 32A breaker for ring and 6A breaker for lights can i use 2.5 cable from house consumer unit to supply garage consumer unit?
House c/u is about 3 meters from garage c/u and also would house circuit breaker have to be 32A or 40A?
​

If you're using 2x 2.5mm cables on the ring, plus a 1.5mm for the lighting, how is 1x 2.5mm cable going to be able to supply the lot?

 

[ricosuave]

NovusSparkus, What would you recommend to supply this then?

 

[pushrod]

Sorry but TBH nobody should recommend anything at all to you as you obviously are not competent in this field and in all probability are about to break the law by doing notifiable work without first having informed your local building authority. If you had contacted them you would know that their fees are so punitive as to make it more economical to employ a Part P registered electrician than to do the work for yourself. You are risking fines and potential damage to your property, but more importantly you could be endangering someones life.

 

[SimpleSimon]

The garage is attached to the house, I am wiring the garage with 2.5mm T&E ring for sockets on 32A C/ breaker like as you have in the main house and 1.5mm T&E radial on 6A C/breaker for lights.
What am I doing wrong then?

This whole setup is wrong mate and the more you say the worse its getting. Just please leave it to someone who knows how, and if you say you have recently qualified (which I think is the answer coming) than still leave it to someone who has more experience. It's gna come back and bite you on the arse.