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#Short Distance [[Transmission Line]]s - [[Electricity]] is transmitted at 33kV over a short distance.
#Neighbourhood [[Electrical Transformer#Step Down|Step Down Transformer]] - The [[Potential Difference|potential difference]] is lowered to 230V for use in houses.
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|[[File:NationalGrid.png|center|500px]]
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| style="height:20px; width:200px; text-align:center;" |A [[diagram]] of the '''national grid'''.
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