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800M 32mm SWA - could this cause increased electricity bills due to voltage loss

Former Community Member
Former Community Member
Hi all,


Our electricity usage is very high (6,000 KWH annually) but we dont have any electricity heating or anything that should be chewing up that much electricity.


I'm looking for reasons why the usage is so high.


Our meter is actually sited on a neighbouring property and then a 35mm2 2 core SWA cable runs approx 800 meters to an Ashley Eddison transformer that regulates the voltage and amperage.


Could the length of the cable, the associated voltage drop and then the transformer usage contribute significantly to the electricity usage..?


Thanks and my apologies for any inaccuracies and ignorance!

Rolf
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    (because its HV)

    It might not be - I gather 690V is a common choice for such applications (1/3rd the current, so 1/9th the cable losses) - and that would still be within LV limits.

       - Andy.


    edit: OK not quite within LV limits (it would exceed 600V to Earth on a single phase system), but still within the simple 1000V limit for the scope of BS 7671.
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  • 0
    (because its HV)

    It might not be - I gather 690V is a common choice for such applications (1/3rd the current, so 1/9th the cable losses) - and that would still be within LV limits.

       - Andy.


    edit: OK not quite within LV limits (it would exceed 600V to Earth on a single phase system), but still within the simple 1000V limit for the scope of BS 7671.
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