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Exporting final circuits

Alan Gray

The Local Authority I work for as an Electrical Engineer is developing low carbon three story flatted residential properties with six flats in each block.

Each flat has its own single phase supply and there is 3-phase landlord's supply covering the common areas

The Mechanical Consultant has specified Air Source Heat Pumps as heating and hot water solution which is fine.

I am not at ease with the arrangement of the equipment the indoor unit is in the flat which is OK but the outdoor unt rather than being mounted on a balcony or wall of the flat it serves is located in separate out building.

This does not seem right as I have export a final circuit from the tenants consumer unit out with the boundary of their property through the common area then right outside the building to an out building.

Also the out building accommodate six final circuits all from different metered installations and also circuits from the landlords supply.

This seem highly irregular to me as all the guidance I have looked at for installed ASHP's states that in a flatted properties that ASHP's should either be a individual systems installed in the flats or a central system in which case it would be on common ground and be fed from the landlords supply.

Does anyone know of any regulations that advises against or prohibits final circuits from different DNO metered installation being mixed in the soom area / room? I have also asked this question to the DNO

Any feed back will be appreciated

Thanks

Alan Gray

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    I the situation I am describing final circuits are leaving the customers property and going into common areas.

    I'd suggest that from the "common property"'s point of view it's a similar problem - having multiple sources.

    Circuits leaving the original "property" aren't unknown either (depending on what you define as the property) - obviously outside lights and garden circuits leave the main building, similarly supplies to outbuildings aren't uncommon, even if that other building is rented out or even is owned by someone else (where's there's some private arrangement to pay for the electricity used). At home I have my own supply to a street lighting column - which most casual observers might thing was well outside of my curtilage but due to the obscure local arrangement of unadopted roads is actually on my land, so for anyone without access to my deeds, would certainly appear to be 'exported'. (It it labelled inside so it's clear where the supply comes from if anyone takes the outer cover off).

       - Andy.

  • 0 in reply to AJJewsbury
    AJJewsbury said:
    I have my own supply to a street lighting column

    How quaint! Isn't it more traditional to go the other way? :-)

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