Английская Википедия:Elstree to St. John's Wood Cable Tunnel

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Шаблон:Short description Шаблон:Use dmy dates Шаблон:Infobox power transmission line

The Elstree to St. John's Wood Cable Tunnel, known as The London Connection during construction, is a 20 km long, 3m wide tunnel beneath northwest London. Constructed between 2001 and 2005, the tunnel carries high voltage transmission lines from Elstree substation in Hertfordshire to Lodge Road sub station in Westminster at a depth of 20m below street level.[1]

The tunnel runs beneath the A5 road for the majority of its length, and houses a single 400 kV power transmission circuit with a rated capacity of 3700 A. There is provision for a second circuit to be installed in the future.[2]

A remotely operated, battery powered monorail system runs along the tunnel, allowing the cables to be inspected remotely using infrared cameras.[3]

Файл:Elstree to St John's Wood Cable Tunnel.png
Route of Elstree to St John's Wood cable tunnel

References

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