OP
Guest123
but this is based on a few assumptions.
Until the OP opens up a bit, we can do no more buddy.:icon6:
Discuss Supplying electric 400 metres away in the Commercial Electrical Advice area at ElectriciansForums.net
but this is based on a few assumptions.
The buildings are sort of offices used for monitoring purposes.
The load has been calculates at 58A which is why we are looking at 63A supply. Thanks for your idea of the extra core for the earth but would the earth potential voltage be a lot different between the meter buildings and the proposed new buildings? There is just under 400m of made up land using rocks to gain the height. Probably 300m is a sea wall.
It is an unusual project - almost unique - as I do not think that using concrete which would be on a rock formation would be suitable. The rock under the concrete would dry out in dry weather thus reducing the efficiency of the earthing.
Any constructive suggestions welcome.
Also, as this is for a charity, is anyone interested in it?
Maybe a challenge for a college..............
That is why it is crucial to have specs for something like this Lenny, I can't for the life of me see an office building having a total load of 58amps, unless it was a 3 story office block.
I don't think I would suggest a single phase supply with a 60amp load over 400mts, it is just not economical it would have to go to 3 phases
Since I fancy a guess, how about the Cob at Porthmadog, built in 1811? Not only a road and a footpath along it, but a very nice narrow gauge railway!
If this is for the Ffestiniog Railway Society, then any help is good, chaps.
Have you considered a heat pump for heating rather than electric resistance heating?
Yes interesting thread, just info is so limited... if its a monitoring station you would need to know what is been monitored and if it uses power 24/7 (possible storage heating if daytime only), its possible the quoted demand is correct but need a breakdown, now this isnt my field so not sure on the regs here as it would be out of the scope of the 17th but is it possible to up the voltage then derate at offices... i would also be taking a minimum of 80amp supply with the suggested design load, you just know someone gonner stick an extra Heater or two on.
Off-peak storage heating would need an extra circuit so a separate armoured cable - that is out of the question, I am afraid.
I totally agree with future proofing which is what we have done for the installation at the works on one headland, but we are talking about the other end of the causeway. Monitoring? well, just traffic really, everything goes on outside and it is really a controlling monitor station operating battery powered lights. The second room being the battery room.
The loadings
Lighting 1kw
Heating 6kw
IT 1kw
Kitchen & drain 3kw
Each building is 10m by 4m approx
Any constructive thoughts are welcome.
You really need to get somebody to come and LOOK at the site. Are you representing the organisation of trying to design it and sell to them?
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