Hi Tom, 2017-03-08 16:08 GMT+01:00 Tom Pfeifer <t.pfei...@computer.org>:
> > The wiki documents for what particular tags are for. This tag is used > 826577 times, so this documentation is essential. > > Also, we normally do not delete wiki pages at all. The process would be to > discourage or deprecate the tag, however the reasons you gave above are > very weak for me. > My point wasn't to delete any page but to remove frequency=* as a possible tag for power lines. > > frequency=16.7 is used a lot on railway networks where it is clearly > distinguished from the 50 (Europe) or 60 (America) Hz regular energy > distribution. > > frequency=0 (used on 35% of the tags) means DC power which is used on > specific railways, and could also apply to DC distribution networks that I > vaguely remember are constructed differently from traditional > 50/60Hz-Networks. > I didn't say frequency isn't used but it is actually misused. Frequency refers to power routes, not physical power lines Example : A 400 kV 50Hz route : http://www.openstreetmap.org/relation/6359644 Which has lines as members : http://www.openstreetmap.org/way/41773490 http://www.openstreetmap.org/way/41828020 where frequency isn't mentioned. If a 16.7 Hz line would have shared same sections, the relation would have frequency=16.7 and line sections wouldn't. All the best
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