Garage electrics from main house

[Neptune]

We have a garage attached to the property and are having it converted to an office with a small toilet. Electrics will include, internal lights, an external light, a few sockets and a extractor fan.

There is a cable coming into the garage currently from the house and is connected into the main consumer unit. It's a 2.5mm T&E cable wired into a 32amp MCB. It has RCD protection.

I think it would be okay to use the existing cable as a radial circuit for a few sockets and also have it initially split into a FCU (3amp Fuse) and have this running a lighting circuit? I would use 2.5mm cable for the sockets and 1.5mm cable for the lights. Would this be okay?
If yes, what would happen, if the load on the sockets was higher than intended? I assume it would trip the breaker in the house

Alternatively, what would be the advantages of using one of these?

Axiom Metal Garage/Workshop Consumer Unit 3 Way | Toolstation

BS 7671 IET Amendment 3. BS 61439-3. • 1 x 63A 30mA RCD • 3 x Type B MCB (1 x 32A, 1 X16A 1 x 6A) • Dimensions: (HxWxD) 185 x 145 x 110mm

www.toolstation.com

I could have the incoming cable going into this RCD and have a Ring for the sockets and a separate circuit for internal and one further for the external lights.

Can I please have your advice on the above. Thanks in advance.

 

[DPG]

If in the future, if we wanted additional draw, it will provide scope for that. I appreciate its well over spec’d for todays requirements.

It’s difficult to explain but if we wanted to upgrade the existing 2.5mm supply cable in the future, it could come and connect in this box and everything downstream is setup for higher loads e.g. 10mm to CU, RFC on 32 amp using 2.5mm cables, etc. There will be no need to rip up the plasterboard. That was my rationale.

The idea is sound, and it makes sense to future proof things.

 

[Neptune]

And…I plan to use 60amp terminal strip to join the 10mm and 2.5mm cable inside the box I have situated in the wall. Will be covered with blanking plate.

 

[UNG]

In case someone else wants to come along and provide some advice but also to clear this up. The question on joining 10mm cable had some context. Its there to provide future proofing as any future armoured cable from the house can connect to this.
The proposed join is an accessible join which I assume does not need to be maintenance free and I also mentioned that I’ve used wagos in the past. I’m not aware that wago do a suitable product for this situation.

I was looking for some validation and clarity around this.

This just seems to be a penny pinching solution
Why not just replace the cable back to the CU from your garage unit in one continuous length would probably give you a bit more kudos.

 

[Neptune]

This just seems to be a penny pinching solution
Why not just replace the cable back to the CU from your garage unit in one continuous length would probably give you a bit more kudos.

May be at some point…
Will cause havoc by way of redecor that will be required. Also, this is ample capacity for what I need at the moment. Should it need to be increased, I’ve tried to future proof and avoid re-work wherever possible.

Thanks for your help

 

[brianmoooore]

I know a couple of people who replace springs and shock absorbers, and I know they are capable of doing this safely. Personally I'm not comfortable doing this so I would get it done by someone else.

No one should be comfortable changing coil springs on a strut. The effects of the energy released when a clamp slips off of a compressed coil spring can be frightening. I always tie some strong string between the spring and a fixed object to at least stop it bouncing off every wall in the workshop.

 

[nicebutdim]

No one should be comfortable changing coil springs on a strut. The effects of the energy released when a clamp slips off of a compressed coil spring can be frightening. I always tie some strong string between the spring and a fixed object to at least stop it bouncing off every wall in the workshop.

It's not difficult to do safely with the right equipment, but those cheap clamps that people use are frightening.