Not in any way involved with power mapping, but I don’t think tower:type should have necessarily any implications about what it is that’s being transmitted over the suspended cables.
In the specific case of power=tower, while I guess tower:type=suspension might be considered the “default” value, the default, still needs to be a “defined” value. Tagging of tower:type=suspension can then be a way to indicate that someone actually looked at it and made a determination in regards to what type of tower it is, while the absence of the tag means that while it probably is a suspension tower, no body has looked close enough to make sure yet. As for the wiki page, it should probably show the same information that https://wiki.openstreetmap.org/wiki/Key:tower:type shows for tower:type=suspension, that is: “A tower which supports the conductors vertically using suspension insulators. This is the default type and need not be tagged. However it may be useful to tag a suspension tower if it is used as an angle tower (an anchor tower would normally be expected here)”. From: Martin Koppenhoefer <dieterdre...@gmail.com> Sent: Saturday, 23 June 2018 23:24 To: Tag discussion, strategy and related tools <tagging@openstreetmap.org> Subject: [Tagging] tower:type=suspension One of the most used values for tower:type is "suspension". Is this an alternative way of saying power=tower or is there more behind it? If you can provide information, please amend the wiki page stub: https://wiki.openstreetmap.org/wiki/Tag:tower:type%3Dsuspension Cheers, Martin
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