Undergrounding

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231	PDF Document Add to Reading List Source URL: resources.peakdistrict.gov.uk Language: English - Date: 2010-07-16 11:05:37 Transport in England Woodhead Line Transport in Sheffield Woodhead Tunnel Undergrounding Tunnel Railway electrification system Counties of England Peak District Derbyshire
232	PDF Document Add to Reading List Source URL: ec.europa.eu Language: English - Date: 2015-04-04 08:56:03 Energy Electrical engineering Monopoly Cables Undergrounding Pylons Electric power transmission Overhead power line National Grid Electric power Electromagnetism Electric power distribution
233	PDF Document Add to Reading List Source URL: ec.europa.eu Language: English - Date: 2015-04-04 08:56:30 Transport Electric power distribution Electric rail transport Monopoly Electrical safety Undergrounding Electric power transmission Railway electrification system Overhead lines Electromagnetism Electric power Electrical engineering