| 摘要 |
The protection device, for protecting an insulation layer sandwiched between first and second sections of rail, comprises an electrically conductive element 26 adapted to be electrically connected to the first section of rail 20 in the direction of train running and to contact a train wheel 30 passing over the insulation layer from the first section to a second section 22 of rail. This prevents potential arcing at the rail joint causing damage to the insulation and rail section ends and conductive bridging of the insulation.
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