Office Electrics

[rustyh]

Im reasonably cofident in home wiring, and have given my house a full rewire which was passed off and certified.

I have recently began to rent a small warehouse space which I plan to put an office space in too. I plan to do the construction myself including the wiring (again, this wont be connected live till checked by a pro).

Is there any differences in cabling etc for an office, or is it the same principle of running a 2.5mm ring.
There will be nothing of unusual power being ran in the office, just the comment PCs, Printer, Kettle (gotta have a brew!), etc

Cheers
Rust

 

[plugwash]

The basic regs are much the same but there is often a need for more thought! loads are likely to be higher, distances longer and some circuits will likely not start from the origin of the installation. This means volt drop is far more likely to be a significant consideration. If there will be large numbers of computers then high integrity earthing may be needed.

 

[ban-all-sheds]

I have recently began to rent a small warehouse space which I plan to put an office space in too.

Check the terms of your lease - it may well mandate the use of a qualified electrician.

 

[Taylortwocities]

If there will be large numbers of computers then high integrity earthing may be needed.

And consideration as to the possible issue of added earth leakage currents. RCBOs and radials for some circuits may be a requirement to avoid this, so a careful design is necessary.

 

[rustyh]

Nothing in the lease

I would estimate if it was a single ring then the whole loop length would be 40m from origin. I dont think we would surpass a max of 8 computers.

 

[securespark]

Why a Ring Final?

Why a single circuit?

 

[rustyh]

sorry, I was just trying to give an idea of perimeter. I would probably split this in to 2 or 3 circuits

 

[securespark]

You gotta think about if the sockets go off, you don't want all the PC's going down too.

 

[rustyh]

I see where your coming from there yes

So in terms of design, would you put the PCs on its own curcuit (maybe even two circuits) then any other electrical devices on their own circuit

 

[EFLImpudence]

There is also the issue in an office, place of work, of liability should anything go wrong.

That is - yours.

 

[rustyh]

just incase its of use to the comments, this is the main unit

Untitled

• rustyh
• 30 Jan 2015
• 2

 

[delmel]

one major difference

single phase v three phase

dont have a fry up for breakfast

 

[Risteard]

Also likely to be issues RE: fire risk assessment, e.g. for emergency lighting and fire alarm panel, and also possibility of certain containment/cable support systems being stipulated.

Really this job should not be done by a DIYer, and your insurance company will probably not entertain the notion either.

 

[skenk]

I don't see a suppliers earth in the photo. TT earthing?

 

[RF Lighting]

The board is completely full and has an RCD main switch. Not going to be a suitable place to supply a new office from.