[Tagging] Power=cable for low voltage lines?

Joseph Eisenberg joseph.eisenberg at gmail.com
Sun Oct 14 22:04:28 UTC 2018

What about the 2 insulated wires that attach my house to the nearest power
pole? Are they a power=cable (overhead)?

If we use the same tag for huge 10 cm wide cables and tiny 1cm cables, it
makes it hard for map renderers to show power cables at all without leading
to problems.


On Sun, Oct 14, 2018 at 11:19 PM François Lacombe <fl.infosreseaux at gmail.com>

> Hi Jospeh,
> What a time to discuss about minor_line!
> Basically in power language, a line is not insulated while a cable
> actually is.
> I won't be in favor to slightly adapt minor_line to include some cables
> (even tiny).
> More generally, the concern to show on carto render only what is relevant
> or significant regards the voltage here.
> An important voltage makes things really bigger while a low one allow to
> reduce sizes, including the space between conductors.
> This what is exactly implied in minor_line, and what is cluttering power
> key values too.
> To solve the problem, carto can filter power=cable on voltage=*, because
> we shouldn't introduce power=minor_cable.
> All the best
> François
> Le dim. 14 oct. 2018 à 12:48, Joseph Eisenberg <joseph.eisenberg at gmail.com>
> a écrit :
>> The team at Openstreetmap-carto (the "standard" map style) recently added
>> rendering for power=cable which are specifically tagged as being overground
>> or overhead (on the ground or on poles).
>> Most power=cable are high-voltage underground or underwater power cables,
>> but some are insulated cables above-ground.
>> Now it's can be seen that in some places, eg France, power=cable has been
>> used for minor distribution lines (220 volt?) bringing power to individual
>> buildings.
>> Eg 1. https://www.openstreetmap.org/#map=18/47.95900/6.80918
>> 2. https://www.openstreetmap.org/way/512818816
>> Perhaps these should be tagged as power=minor_line, but the wiki says
>> these are uninsulated, hence the confusion. And the wiki says "Use
>> power=cable for any voltage"!
>> Should the wiki page for power=minor_line be changed to mention the
>> possibility that these lines may be insulated in some places? Should the
>> power=cable page state that this is only intended for higher-voltage lines?
>> -Joseph
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