Cornish_Rail Posted June 28, 2011 Share Posted June 28, 2011 hello im starting to build bits for my new layout and i want to make a few half decent power poles for it instead of ratio ones i just wondered what sort of height would the uk ones be Link to post Share on other sites More sharing options...
craigwelsh Posted June 28, 2011 Share Posted June 28, 2011 Do you mean telegraph poles? Link to post Share on other sites More sharing options...
Lady_Ava_Hay Posted June 28, 2011 Share Posted June 28, 2011 Do you mean telegraph poles? ...or pylons as on the National Grid 33Kv? ....or 440 volt feeder wires to sub stations? Link to post Share on other sites More sharing options...
craigwelsh Posted June 28, 2011 Share Posted June 28, 2011 I only know of Ratio telegraph poles which was why I queried if it was those. Hornby did some rather stunted growth pylons in the past. Link to post Share on other sites More sharing options...
travelintrev Posted June 28, 2011 Share Posted June 28, 2011 Funnily enough I have this information to hand, as I have had to prove to clients that we are working to best practice! These are for height of cables across railway owned land. (lowest point of cable sag.) Plain land: 400v,11kv, 33kv 6.1m, 110kv,6.7m,275kv, 7.0m 400kv, 7.6m. Across goods /works yards 10.7m,11.2m, 11.5, & 12.2m. Line conductor (uninsulated wire) to rail level. 7.3m,400v - 33kv, Above 33kv 8.8. Above gantries & traction wires, 400v,11kv & 33kv 3m, then 3.7, 4.6, 6.1m respectively. Typically to allow for cable sag 11 & 33kv line poles would be 10 - 12m above ground level. So around 140 -150 tall in 4mm. Distance apart between 30 - 40m (up to 33kv) Hope this is of some help? Link to post Share on other sites More sharing options...
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