On 10/17/2011 8:56 AM, John Sturdy wrote:
When you follow the link on the image for that text, the page there
(http://wiki.openstreetmap.org/wiki/File:Powerpole-branching01.png)
says:

   A two-legged wooden power=pole with a transformer. For the gallery
that helps assessing border cases of power=pole vs. power=tower

So,  should these things get tagged as "pole" or as "sub_station"?

I'm inclined to tag them as "sub_station" as that's more informative,
but should there be something indicating that the substation is not on
the ground, e.g. location=overground?

Some Germans came up with the original power tagging without much knowledge of English usage, so sub_station was used for transformers, station for substations, and generator for stations. This has led to obvious problems, where probably most power=sub_station uses in the English-speaking world are substations and not transformers.

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