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Public-images-osm logo.svg power = minor_line
Minor power lines forming the distribution grid, usually carried by poles. Edit or translate this description.
Rendering in OSM Carto
Power minor line.png
Group: Power
Used on these elements
should not be used on nodesmay be used on waysshould not be used on areasshould not be used on relations
Useful combination
See also
Status: de facto

Minor power lines carried on poles physically smaller than the high voltage pylons/towers and used for power distribution, are tagged as power=minor_line. Mostly supported on single poles, although sometimes the poles can have several supports, or may use towers when crossing obstacles where sufficient clearance is required. High voltage electricity lines used for bulk transmission are tagged with power=line.

Minor lines may be anything providing power distribution, from interconnected 20,000 volt lines powering a small suburb, to a single cable running from a street lighting pole to the next one. This tag will apply mostly on the lines that form the distribution grid.

Be careful not to mistake aerial telephone cables (or the like) for power lines. High-voltage transmission lines supported on towers are mapped as power=line.

How to map

Draw a way way following the path of the cables. The poles that support the minor line can be mapped using nodepower=pole. It is not necessary to tag power lines with a layer=* unless two lines cross over each other.

Additional tags

When known, you can also add at least these tags to further define the line:

  • voltage=* Nominal voltage (in Volts), for example 20000 or 400
  • cables=* Number of the cables carrying currect; Likely values are 1/3/6. Ground wires are not included. Neutral is not usually counted, other than lines connecting to the end customers.
  • ref=*
  • name=*
  • operator=*



Openstreetmap-carto renders these as a light gray line at high zooms. Osmarender uses a dashed line with a higher frequency of dashes than a normal power line, again only at high zooms.

See also

  • power=line For high-voltage power lines, used for bulk transmission, carried on towers (pylons).
  • power=cable For insulated underground or sea cables.

Possibly tagging mistakes

If you know places with this tag, verify if it could be tagged with another tag.
Automated edits are strongly discouraged unless you really know what you are doing!