Help wiring Garage Consumer Unit | Page 2 | on ElectriciansForums

Discuss Help wiring Garage Consumer Unit in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

I think the OP intends to build a testing board, to practice his ability for carrying out tests, it's not an ideal scenario, but I guess he will have account for the discrepancies, at least I think that's what he intends to do, but then again in this mad world of DIY electrics, who knows?

As mentioned in a previous post. It's only for setting up a test lab for a couple of sockets and lights on a board!!

I'm fairly sure I stated that this is for a test lab. Sorry if some of you misunderstood my intentions.

I just want to make sure that I am using the right cabling.
 
As a test arrangement you have the wires going to the correct positions.
On the negative side live testing at this unit will involve your incoming supply unless it comes from a separated source.
As has been said your total load will be limited to the plug fuse rating and flex (up to 1.5mm²) should be used for the connection into the plug. Ideally the ends of the flex in the consumer unit should have ferrules on to ensure a safe connection into the screwed terminals without damaging the fine stranded cable.
As a design a 2.5mm² cable can only take 27A in the best circumstances and so cannot be protected by a 32A MCB, 25A at a pinch, 20A generally.
A consumer unit should not ideally have two different manufacturers protective devices as they may not line up correctly and so cause weak spots and high resistances at the busbar.
It starts off so easily doesn't it!
 
As a test arrangement you have the wires going to the correct positions.
On the negative side live testing at this unit will involve your incoming supply unless it comes from a separated source.
As has been said your total load will be limited to the plug fuse rating and flex (up to 1.5mm²) should be used for the connection into the plug. Ideally the ends of the flex in the consumer unit should have ferrules on to ensure a safe connection into the screwed terminals without damaging the fine stranded cable.
As a design a 2.5mm² cable can only take 27A in the best circumstances and so cannot be protected by a 32A MCB, 25A at a pinch, 20A generally.
A consumer unit should not ideally have two different manufacturers protective devices as they may not line up correctly and so cause weak spots and high resistances at the busbar.
It starts off so easily doesn't it!
Well spotted never noticed that, you are however right of course.
 

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