3 phase supply to an estate agents

[mdbalson]

Here some pictures of the 3 phase supply in an estate agents in Ashford, where we were fitting a new submain to fed a new DB for the 3 new wall mount split A/C units which our firm fitted:


The incoming 3 phase supply, meter, DBs & switch fuses in the cellar:





The red phase was not currently in use, so it will be used to fed the submain for the A/C DB, so as not to overload the yellow & blue phase.

Old isolator wired in vir for a submain, still in use:



Vir submain:



Boiler feed feed off the vir submain:





I will post up some pics of the new submain & DB later.

 

[Taylortwocities]

I am trying hard to be interested....but I can look at DB's all day.
They just sit there. I've never managed to get much conversation out of any one of them.

How about posting what your DIY query might be with respect to these photographs?

Or are they some sort of cure for insomnia?

 

[mdbalson]

I am trying hard to be interested....but I can look at DB's all day.
They just sit there. I've never managed to get much conversation out of any one of them.

How about posting what your DIY query might be with respect to these photographs?

Or are they some sort of cure for insomnia?

No query, just pictures of a old install where bits have been added on over the years.

An old submain wired in vir still in use, and a submain wired in about 10mm T+E run along the outside of the building.

 

[AndyPRK]

why would then need 3 phase ?

air con units ?

 

[mdbalson]

why would then need 3 phase ?

air con units ?

The air con units are single phase ones running off the red phase for the top floor of the building.
The yellow and blue phases has all the lighting and power for the 3 storey building running off of them, and the 2 air con units for the ground floor, powered off them from various DBs around the building. There is about 20 or more computers in the building plus photocopiers and printers.

 

[333rocky333]

Any chance you could get a picture of the KEY
(to what looks to me like a) "GET" keyswitch please.
I am trying to get one but would like to see one, to establish if i can adapt a different make.

 

[ban-all-sheds]

TTC - surely you remember mdbalson and his never-ending photos from days gone by?

air con units ?

Customer con units, surely, with them being estate agents....

 

[Taylortwocities]

TTC - surely you remember mdbalson and his never-ending photos from days gone by?

Indeed, hence my caustic comment.

 

[bongos]

I will post up some pics of the new submain & DB later.

Keep 'em coming - as long as you not posting loads again...

 

[Taylortwocities]

You could always just leave them on Photobucket.

 

[mdbalson]

More pictures added to the album on photobucket.

Pictures of New switchfuse and new submain cable

Album here:
http://s167.photobucket.com/albums/u125/mdbalson/Old Wiring/G and C Ashford/

 

[sparkydude]

Is this install compliant to regs??? i only ask as the supposedly new submain is on old colours except you have for some reason sleeved the black with blue tape?. Old colour tails feed the switchfuse also and you have just broken the neutral feed to an old isolator to introduce your neutral.

All looks a bit dodgy to me i have to say .

Nick

 

[mdbalson]

Is this install compliant to regs??? i only ask as the supposedly new submain is on old colours except you have for some reason sleeved the black with blue tape?. Old colour tails feed the switchfuse also.

The new submain is in new colours, 3 core SWA with brown, grey and black cores. The grey core has been sleeved blue and the black core has been sleeved green/yellow.

The tails to the new switchfuse are the new colours brown and blue.

 

[sparkydude]

My apologies, it was late in the evening and i obviuosly was not looking clearly at the tails, however the submain definitely does look a bit red to me, but that must be a trick of the light..

Sorry again for being a T**T



Nick

 

[Lectrician]

The inside of the sw-fuse is a little untidy IMO?

You only need to sleeve or tape the grey at it's termination, not the entire length. If it was sleeved the full length it would not be too bad, but a core taped for that length looks cack to me.

The cleating could have done with a bit for time taking over it - the cleats are spread too far apart for me (although likely compliant to the guide), and you seem to have just allowed the cable to fall where it wants rather than form it neatly to go where you want it to go.