Sweden
In Sweden most electric railways use 15 kV 162⁄3 Hz AC. Exceptions are two local isolated railways – Saltsjöbanan and Roslagsbanan – that use DC power, the Stockholm Metro and tramways use DC power, the Oresund Bridge linking Sweden and Denmark is electrified at 25 kV, Danish standard; the split is located on the Swedish side near the bridge. Only two-system trains (or diesel trains; rare) can pass the point.
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