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Public-images-osm logo.svg power = portal
Power substation portal.jpg
A supporting structure for power lines, composed of vertical legs with cables between them attached to a horizontal crossarm. Edit this description in the wiki page. Edit this description in the data item.
Group: power
Used on these elements
may be used on nodesmay be used on waysshould not be used on areasshould not be used on relations (except multipolygon relations)
Useful combination
Status: de facto

A portal is a support composed of 2 or more vertical legs linked by horizontal crossarm supporting the power cables (electrical wires).

Cables are supported inside the legs. If some cables are outside them, it's a h-frame tower and power=tower + design=h-frame should be used.


Several keys can be used to describe a power portal with details. Please use the following:

Tag Value Description Recommendation
power portal It's a power portal Mandatory
ref Portal reference Power portal reference as seen in situation Optional
height height The height of the portal from the ground Optional
operator operator The power portal operator's name. Recommended
structure lattice, tubular or solid The structure pattern of the portal Optional
design portal design The generic design name of the portal without any designer internal reference Optional
design:ref portal design reference The design reference of the portal. Most of the time operator's internal references. See F44 for example in France. Optional
material material The material which the portal is made of. Optional
colour portal colour The colours of the portal, separated with a ; . Optional

Mapping as a way

Portals can be supported by more than 2 legs. It is possible to map them as way when necessarily and relevant.

Here are two examples of the same situation to show how the two way of mapping work.

Case in picture Location Comments Tags
Power substation portal.jpg
France A power portal in an outside power substation and carrying a 225 kV bay line. Mapped as a node
Power portal as node.png
A power portal in an outside power substation and carrying a 225 kV bay line. Mapped as a way and using power=insulator to link the power line to it.
Portal portal as way.png

For the portal:

And on the node at the connection between power line and portal: