تونل مانش: تفاوت میان نسخه‌ها

| el = [[ 25 kV AC]] [[سیم بالاسر]]، 5.87&nbsp;m<ref>{{cite book|title=The Channel Tunnel: Transport systems, Volume 4|volume=108|issue=2|author=Institution of Civil Engineers (Great Britain)|url=https://books.google.com/books?id=rqiB8R1iCZoC|publisher=Thomas Telford|year=1995|page=22|isbn=978-0-7277-2024-5}}</ref>