Garage expansion / MCB rating

[telectrix]

go horizontally between sockets if there's no windows in the way.

 

[Specialist]

Would normally be my method as well. Saves work and materials but he doesn't want horizontal trunking, Out of the other two I'd rather see looped than loads of junction boxes.

 

[telectrix]

metalclad boxes and singles in a bit of galv. conduit. can't beat it.

 

[Specialist]

Now your talking tel, supply into a little 2 way metalclad CU & everything tubed. Proper job.

 

[Magsy]

Understood. I already have metalclad sockets and metal conduit would be fine.

I can go direct socket to socket but there are brick piers all around the garage that I'd have to route over and that would result in lots of cuts and/or 90 degree bends; laziness basically. On the other hand that will cut down on T&E usage plus I don't like adding all that cable by going up and down repeatedly so it is looking like the right thing to do.

 

[Magsy]

Now your talking tel, supply into a little 2 way metalclad CU & everything tubed. Proper job.

I did wonder if I should have a CU installed but with my limited understanding, plus only having a 2.5mm sq inc feed, it seemed overkill.

Is that a nice to have or does it bring a real benefit? There is a 30ma RCD at the source of the feed already.

 

[Specialist]

It's OK mate it's a would be nice to have, but the way you've explained your set up. Not essential. But if done it would be 20a MCB in house to feed garage, then in the garage a small 2 way board with 16a for sockets & 6a for lights.

 

[davesparks]

It's OK mate it's a would be nice to have, but the way you've explained your set up. Not essential. But if done it would be 20a MCB in house to feed garage, then in the garage a small 2 way board with 16a for sockets & 6a for lights.

Which is pointless as the MCBs are so close in rating that it would be pot-luck which one operates on a fault.

 

[Madocks]

Whats going to be plugged into the sockets?

Is the current cable easy to replace? perhaps pull some 4mm through