Re: Revolutionary electric resistant paint | Bacteria busting technology at Euston station | Esk Valley line track upgrade in -17oC
  Matthew Geier


On 25/2/21 4:57 pm, Tony Galloway wrote:
>

> Coasting trains through gaps in the wire isn’t unusual. On the US Northeast Corridor the former New Haven 11kV 25hz electrification had long gaps at opening bridges and trains would coast through at track speed with the pantographs fully extended.


They do this in The Netherlands too - does require pantogaphs with height stops and gentle slopes on the wire on either side.


I would think that the UK are now masters of tight clearance 25kv AC - the Servern Tunnel proved to be a challenge at 7km long coasting is not an option, it's damp, humid AND salty.


A number of years ago I was in Edinburgh Waverley and noticed that the overhead contact wire was VERY close to the steel bridge structure on platform 22. They had put a small over over the wire itself to give extra insulation from the bridge, but the pantograph head of passing trains still came VERY close to the steel footbridge structure. The bridge appeared to have the standard zinc paint with the required number of 'rust spots' from poor maintenance :-)

I was sort of surprised, especially given the Brits tendency to over do 'Health and Safety'.