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2 electricity supplies to one building

Former Community Member
Former Community Member
Hello, I am a not an engineer but need some advice on uk wiring regulations please. 

A national utility company is fitting a 32A charger in my garage for an electric vehicle. 

The garage is detached from my house but there is an existing circuit from the house consumer unit to the garage for lighting and a power socket. The cable runs along a garden wall. 

The new charger will have its own cable run from the same consumer unit in the house down to the garage. 

My problem is that the engineer who came to do the installation refused to do it as he said the garage is a building in its own right and regulations do not allow 2 supplies to one building.

My question is: Do 2 wiring circuits from the same consumer unit constitute 2 supplies If the consumer unit is located in an adjacent building? 

I would have thought that this was still a single supply and to have 2 supplies you need 2 separate meters with 2 consumer units which is not the case here but then, as I said, I’m no engineer. 

Edit.....The engineer stated that the regulation related to avoiding the risk of a voltage between 2 different earths. To me this again only makes sense if you were talking about 2 totally different supplies from different meters and therefore possibly different sub stations etc.
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  • Former Community Member
    0 Former Community Member

    The HGV speed limit on motorways is actually 60 MPH BOD. The owners like a bit less for fuel consumption reasons.


    I think you missed my legal point there Dave! And that the drivers deliberately fit just legal tyres for the speed limiter to be set to with the intent on going faster than 56mph when normal treaded tyres get re-fitted so not driving for economy, but outright speed.


    Regards


    BOD


    PS. Apologies for font but couldn't see a way to alter.




    Speed limiters



    A speed limiter must be fitted on:



    • vehicles with more than 8 passenger seats, eg buses, minibuses, coaches, stretch limousines

    • goods vehicles with a maximum laden weight of more than 3.5 tonnes

    Speed limiters are designed to reduce accidents. They limit the maximum speed of a vehicle by restricting the fuel supply to the engine. Having a speed limiter may mean that your vehicle can’t reach the speed limit.


    New vehicles Goods vehicles with a design weight over 3.5 tonnes and buses with more than 8 passenger seats (regardless of weight) registered on or after 1 January 2005, will be required to be fitted with a road speed limiter. The limiter will restrict the maximum powered speed to 56mph (90km/h) for goods vehicles, and 62mph (100km/h) for buses. A speed limiter will not be required until 1 January 2008, however for vehicles used solely on UK journeys and are either: • a goods vehicle with a design weight not exceeding 7.5 tonnes, or; • a bus with a design weight not exceeding 5 tonnes New Speed Limiter Legislation V2.qxd 12/7/04 1:04 PM Page 2 Older vehicles Vehicles registered between 1 October 2001 and 31 December 2004 (inclusive), will also need a road speed limiter if they are: • a diesel engined goods vehicle with a design weight over 3.5 tonnes, but not exceeding 12 tonnes, or; • a diesel engined bus fitted with more than 8 passenger


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  • Former Community Member
    0 Former Community Member

    The HGV speed limit on motorways is actually 60 MPH BOD. The owners like a bit less for fuel consumption reasons.


    I think you missed my legal point there Dave! And that the drivers deliberately fit just legal tyres for the speed limiter to be set to with the intent on going faster than 56mph when normal treaded tyres get re-fitted so not driving for economy, but outright speed.


    Regards


    BOD


    PS. Apologies for font but couldn't see a way to alter.




    Speed limiters



    A speed limiter must be fitted on:



    • vehicles with more than 8 passenger seats, eg buses, minibuses, coaches, stretch limousines

    • goods vehicles with a maximum laden weight of more than 3.5 tonnes

    Speed limiters are designed to reduce accidents. They limit the maximum speed of a vehicle by restricting the fuel supply to the engine. Having a speed limiter may mean that your vehicle can’t reach the speed limit.


    New vehicles Goods vehicles with a design weight over 3.5 tonnes and buses with more than 8 passenger seats (regardless of weight) registered on or after 1 January 2005, will be required to be fitted with a road speed limiter. The limiter will restrict the maximum powered speed to 56mph (90km/h) for goods vehicles, and 62mph (100km/h) for buses. A speed limiter will not be required until 1 January 2008, however for vehicles used solely on UK journeys and are either: • a goods vehicle with a design weight not exceeding 7.5 tonnes, or; • a bus with a design weight not exceeding 5 tonnes New Speed Limiter Legislation V2.qxd 12/7/04 1:04 PM Page 2 Older vehicles Vehicles registered between 1 October 2001 and 31 December 2004 (inclusive), will also need a road speed limiter if they are: • a diesel engined goods vehicle with a design weight over 3.5 tonnes, but not exceeding 12 tonnes, or; • a diesel engined bus fitted with more than 8 passenger


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