Elstree to St. John's Wood Cable Tunnel
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.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.A remotely operated, battery powered monorail system runs along the tunnel, allowing the cables to be inspected remotely using infrared cameras.
Excerpt from the Wikipedia article Elstree to St. John's Wood Cable Tunnel (License: CC BY-SA 3.0, Authors, Images).Elstree to St. John's Wood Cable Tunnel
Lisson Grove, City of Westminster St. John's Wood
Geographical coordinates (GPS) Address Nearby Places Show on map
Continue reading on Wikipedia
Geographical coordinates (GPS)
Latitude | Longitude |
---|---|
N 51.526 ° | E -0.172 ° |
Address
Westminster City Council - Lisson Grove
Lisson Grove 215
NW8 8LF City of Westminster, St. John's Wood
England, United Kingdom
Open on Google Maps