North London Line - Caledonian Road to Canonbury
"E27002" wrote
IIRC the current return issue is more serious on the deep level tubes
built of iron (?) segements. The Brunel tunnel on the ELL is
brickwork.
Could there be issues with current return between Highbury & Islington and
Dalston Junction, because of the proximity of the 25 kV NLL?
Peter
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