UK Electric Railway Map
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STK = Single Track Kilometre - that is, one kilometre of wired single track. Includes Network Rail routes only; trams, metros, high speed rail and heritage / tourist lines not included. STKs are current installation; historic STKs and removed/closed schemes are not included.


Voltage
Line In
Service
Line to
Upgrade
New
Line
Not Electrified


Overhead Line
≤600V


750V


1.5kV


25kV


Out of Use
X X
3rd rail
≤550V


600V TBC TBC TBC
630V


660V TBC TBC TBC
750V


4th rail
630V


750V


Dual Electrified: Overhead Line & 3rd Rail
25kV/750V


Dual Electrified: Overhead Line & 4th rail
25kV/630V TBC TBC TBC
25kV/750V