Adrodd fel Amhriodol
Testun Gwreiddiol (Anodiad: EPW047483 / 1150245)
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The greatest feature of this railway branch line was it was electrified at 1200 volts D.C. A voltage so high it was ordered that the side third rail be encased in wood and the contact with the multiple units that used it be by a side contact shoe through a slot.
This link may explain more.http://en.wikipedia.org/wiki/Bury_to_Holcombe_Brook_Line '