Tag:power=tower

+/- power=tower Description For towers or pylons carrying high voltage electricity cables. Normally constructed from steel latticework. Used on these elements Useful combination Key:ref Used combinations in World Australia/Oceania Europe (list) Asia (list) Central America (list) South America (list) Africa (list) Status Undefined

For towers or pylons carrying high voltage electricity cables. Normally constructed from steel latticework.
Should not be used for electricity or telephone cables carried on single wooden poles. There is power=pole for power poles.

How to Map

Add a node at the centre of the tower and add the power=tower tag.
You can add a ref=* as well if the tower has this.

Detailed tower tagging

You can add additional information about the tower using the following tagging scheme.

Picture	Key	Value	Description
	structure	lattice, tubular, solid	This tag describes the construction type of a tower. The default value is lattice.
	material	steel, wood, concrete, ...	The default value is steel but for "solid" towers the material should be defined (normally wood or concrete).
	height	*	The height in meter of the tower if known.
	colour	*	The colour(s) of a painted tower, e.g. colour=red/white for tower painted red and white to improve visibility to air traffic.
	design	*	The basic design of the tower. The main parameters are the number and positions of cross-arms (the horisontal beams on which the insulators are attached). Cross-arms which only serve as support for earth wires should not be considered. See examples with suggested values below.
Einebenenmast (110 kV)	design	one-level	A tower having cross-arms at a single level only.
150 kV tower (Netherlands)	design	two-level	A tower having cross-arms at two levels.
400 kV tower (Denmark)	design	donau	A common sub-type of the two-level tower. It is characterized by having one conductor on each side at the upper level and two conductors at each side on the lower level. The "Donaumast" is widely used in central Europe.
	design	three-level	A tower having cross-arms at three levels.
	design	barrel	A common sub-type of the three-level tower. It is characterized by the middle level cross-arms being longer than the upper and lower cross-arms giving the conductor arrangement a barrel-like shape.
60 kV tower (Denmark)	design	asymmetric	A two- or three-level single circuit tower carrying two conductors at one side and the third conductor at the other side.
	design	donau;one-level	A three-level combination tower effectively being a Donau tower having an additional lower level, often used for circuits of a lower voltage than those at the upper levels. This tag better describes the design than just using "three-level". Similar tag values may be used for other designs having an additional lower level.
	design	four-level, five-level, six-level, ...	A tower having cross-arms at four or more levels. These tall towers may carry four or more circuits.
150 kv tower (Denmark)	design	delta	A tower having a V-shaped top with a cross-beam. All conductors are attached to the common cross-beam. It is mostly used for a single circuit.
150 kV tower (Netherlands)	design	delta_two-level	Delta tower having two cross-beams. Suitable for three circuits.
400 kV tower (Denmark)	design	y-type	Similar to delta tower but the middle conductor is not mounted on a cross-beam.
60 kV wooden tower (Denmark)	design	portal	A tower type having two (or more) separate pylons connected by a cross-beam. The portal tower is mostly used for a single circuit. Often used as termination tower.
	design	portal_two-level, portal_three-level	Two and three level versions of the portal tower.
735 kV tower (Quebec)	design	guyed-v	A guyed tower type that is mainly used for ultra-high voltage lines e.g. in North America.
380 kV Wintrack tower	design	bipole	A pair of closely spaced but non-touching pylons where the conductors are mounted between the pylons. There are no cross-arms. Known as 'Wintrack' in the Netherlands. The bipole should be mapped as a single tower.
400 kV anchor towers (Denmark)	design	monopolar	A tower carrying just one conductor. Mostly used as an anchor tower at very high voltage.
	design:name	*	When the tower design has been given a specific name by its designer it can be indicated by this tag, e.g. Wintrack (The Netherlands), Eagle (Denmark).
150 kV tower (Denmark)	design:incomplete	yes	An incomplete tower carries less conductors than the design is capable of. Sometimes the unused cross-arms are omitted (but can be retrofitted if an extra circuit is to be mounted)
	tower:anchor	yes	A tower where conductor sections terminate at strain insulators, normally built stronger than normal suspension towers. Used e.g. when the line changes direction.
	tower:termination	yes	A tower with strain insulators at the end of a line, e.g. before a substation or at the transition to underground cable (combine with tower=air_to_ground). Can resist the full single-sided tension of the conductors.
Branch tower	tower:branch	yes	A line branch starts at this tower. tower:anchor=yes is implied. If the branch line is a cable then add tower=air_to_ground.
Bosphorus Crossing	tower:crossing	yes	A special tower used at river crossings etc where a very long span is required. These towers may be very tall and are therefore significant landmarks.
Verdrillmast Oberwoehr	tower:transposing	yes	A tower in which the conductors exchange positions in order to balance the capacitance and impedance of the conductors. tower:anchor=yes is implied.

Examples

Picture/Description	Tags	Mapnik	Osmarender
Electricity pylon with identification label	power=tower ref=PXA 5
Elbekreuzung 2	power=tower design=barrel tower:crossing=yes height=227 colour=red/white

See Power lines in Bremen for a reference.

Related terms: power tower.