Proposed features/Power transmission refinement

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Power transmission refinement
Status: Draft (under way)
Proposed by: Fanfouer
Tagging: power=> power=line, power=cable, voltage=*
Applies to: Node Area Relation Transmission context and unify tags for power lines.
Definition: <definition>
Rendered as: Identical to power=line and power=cable
Draft start: 2013-11-04
RFC start: 2013-11-04
Vote start:
Vote end:

Proposal

This proposal aims to clarify the current usage of the power=* key in electricity transmission context and deprecates some other tags such as power=minor_line.
This is the second main version of the proposal : the first one was rejected on 2013 November 1. Voting and feedbacks are still visible at the bottom of this page.

Basic Mapping

Large above ground power transmission towers and their conductors are common navigational references (used by hikers and pilots for example). These facilities are widely mapped. Draw one line to represent the wires hanging off a string of poles, then add nodes along the line to represent towers. When mapping from an air photo it is often helpful to look for the shadow cast by each tower: the node should placed at the intersection of the shadow and the apparent base of the tower.

  • For major transmission lines: draw a line in OpenStreetMap and tag it power=line, and add power=tower or power=pole on nodes representing towers or poles.
  • Use only one line in OpenStreetMap, even if there are multiple wires on a string of poles. Additional tagging for number of conductors (wires) is optional and described below.
  • Small and roadside distribution lines (particularly those with poles no taller than a wooden electrical pole) are not widely mapped. If mapped, tag the line with power=line as major lines, and for the pole nodes use power=pole.
  • If known, add operator=* to say who is operating the line. Owner may be different.
  • If known, add voltage=*. See below for common values.
  • Don't create relations for power lines. Power lines have to be represented with Way power=line only.

Rationale

Definitions

Wikipedia and IEC define power transmission infrastructures in these terms:

  • A power line (601-03-03, also referred as an electric line) is an arrangement of cables for transferring electricity between sources and loads. A power line may be consists in multiple circuits.
  • A circuit is a set of conductors bundle, 1 for each phase of a multiple phase system. It is designed for transmitting a given power between two point of a system.
  • A bundle (466-10-20) is an assembly of several conductors which is the base item of all stuff exposed here.
  • A conductor (466-10-21) is element which carries electric current. It has often a very bigger length than his cross-section dimensions (e.g. copper wire).
  • Voltage (121-11-27) is the electric potential difference between two points and it's measured in volts.
  • A power tower (466-08-01) is a support which may be made of such material as steel, wood, concrete, and comprising a body which is normally four-sided, and cross-arms.
  • A power pole (466-07-01) is a vertical single member support in wood, concrete, steel or other material, with one end buried in the ground.

OSM usages

The best way to use them in OSM is to keep those simple definition and build a consistent tagging model.

It's not what is currently used, overhead and underground lines are using fairly different models:

  • power=line only identify aerial power lines.
  • power=cable documents underground power lines.
  • location=* and level=* tags are not used here although there are very common use cases in many other fields of knowledge in OSM.
  • Thus it's difficult for mappers to use terms like cable with their original sense since they are already used for underground infrastructure.
  • Voltage definitions are currently too weak and not so precise while there are so many different power systems to map all around the world.

History

The initial draft started 2011 June 16. Here is a summary of all the removed stuff in this new version.
In the early hours of RFC, the possibility to deprecate power=tower and power=pole in favor of man_made=tower and man_made=pole. Pros argued that towers and poles are far less linked to power than conductors themselves. Thus, such features should be moved to man_made=*.
This was finally removed from this proposal due to the lack of consensus around it, and the pretty mess to retag millions of features.

In its first final version, this proposal intended to unify all power lines way of mapping behind power=line.
This was rejected, due to the well establishment of power=cable and the need to distinguish overground features from buried ones.
It intended to introduce new tags conductors=* and bundles=* respectively in replacement of wires=* and cables=*. This was removed due to a lack of necessity despite a logical way of thinking.

New approaches

Some enhancement are needed to setup a consistent power model for transmission and routing.
This proposal is focused on the transmission infrastructure whereas the routing one is focused on power circuits, power paths and routing through the grids.
Two main aspects are discussed here : voltage in first and physical infrastructure (power lines) secondly.

Voltage

  • Modify the definition of voltage=* as for obtain a more precise way to specify voltage over a power transmission network.

Multi-phase, circuits and all that jazz

All those modifications would imply a little adaptation work for data consumers. We aim to be compliant with IEC definitions here and current model is not. If users wouldn't like to change their processes, they can use a current export of planet.osm. Nevertheless, re-tagging wouldn't be done until a long time.

This proposal is fully consistent with the early adopted circuits=* and introduce necessarily changes to introduce power routing with circuits Relation.

Tagging

Tagging is very important and first of all setup in a consistent way. We should take care of existing features, reuse them as often as we can but this proposal aims to refine model and will force us to re-tag some of these features.

voltage

Let's deal with power transmission voltage.
Power lines and cables dimensions are mainly influenced by such a scale factor. Distance between conductors and distance between supports and conductors depends on the voltage the line is supposed to carry.
In OSM, voltage=* tag should be the only piece of information which allow mappers to map this scale factor.
Actually, power=minor_line is only a declination of power=line regarding its voltage. Furthermore, it's the only "scaled" value in power=*. It must be deprecated for two main reasons :

  • There are not just "big overhead power lines" and "residential distribution" in power landscape. A wide range of features, designed for the voltage they are supposed to carry as explained above, exist and enhance the importance of "low voltage lines" with minor_line beside the rest in power=line don't represent reality at all.
  • Everyone is free to hide whatever he wants behind the minor_line voltage threshold. Data consumers won't be aware of this and will have to gather heavy detailed information about local specifications to know which voltage is really in use.

Unknown voltage

Since voltage could fit many different scales all around the world, we must define categories more than fixed values. Mappers are not supposed to know it exactly but identifying the category of power line they're adding to maps. Obviously, if mappers are knowledgeable of the live voltage, they should use the exact value more than the categories.
If the voltage of a power line is unknown, Schusch suggested to add low, medium, and high as possible values for voltage=*.

Very high voltage

voltage=very_high
All lines with voltages equal to or greater than 300 kV are "very high voltage lines".

The Very high voltage network (Höchstspannungsnetz in Germany) consists of 380 kV and more transmission lines. Other very high voltages include 315 kV, 345 kV, 400 kV, 500 kV and 765 kV transmission lines.

High voltage

voltage=high
All lines with voltages equal to or greater than 45 KV should be always marked as "high voltage lines", lines with voltages of less than 45 kV as "low voltage lines". This makes OSM in appearance more similar to commercial topographic maps, which show in most cases no power lines with voltages below 45 kV.

Medium voltage

voltage=medium
Transmission lines with voltages between 1 kV and 35 kV are considered medium voltage lines.

The Medium voltage network (Mittelspannungsnetz in Germany) consists mainly of 10 kV and 20 kV transmission lines.

Low voltage

voltage=low
The Low voltage network (Niederspannungsnetz in Germany) consists of transmission lines equal to or below 1 kV.

Neutral conductor

  • On AC lines (frequency=* > 0), when neutral_conductors=* is defined and > 0, voltage is given between neutral and phases. Otherwise, we can only give voltage between two phases.
  • DC lines don't introduce such matters since there are always two directions, two conductor bundles and voltage is always given between these two and neutral_conductors=1.

For more info see Proposed_features/Power_transmission_refinement#Neutral_distribution.

Power lines

Undergound vs overhead basic comparison

Secondly, power lines are the main element of power transmission.
It's really important to have a reliable and consistent model to show them up on the map.
We'll expose a two-axis tagging model for power lines : overhead lines and underground/undersea cables.

Let's answer the questions :

  • What is installed on towers/poles ?
  • What is buried under my feet ?

... in terms of circuits, bundles and conductors.

Please note the stuff above is dedicated to describe the whole line. The point isn't to describe each different circuit which may be installed on it. Circuits description will be available with new Relation in Power routing proposal

Transmission ways

Way overhead power=line

The goal here is to improve versatility of current model and to ease work for Proposed_features/Power_routing_proposal which is coming too.

First of all, here are the common tags used for a power line. They are all consistent with the case "several circuits share the same tower/pole". We assume that conductors of a given circuit are designed to carry the same power. Thus, all conductors of a given circuit have the same number of conductors/same conductor cross-section dimensions.

Tag Value Description
power line It's a power line
operator operator The operator of the power line.
location Default is overhead The power line location
level ... The power line's level on the map.
circuits ... The number of power circuits on the power line
voltage Voltage in volts as explained above or high, medium, low if unknown The voltage at which each circuit of the power line is operating separated by ;
cables ... The number of conductor bundles on the whole line without any circuit consideration.
wires ... The number of conductor in bundles on the whole line without any circuit consideration.
frequency ... The frequency at which the power line is operating (separated by ; if different circuits don't have the same frequency)
Please note that frequency=0 is correct and dedicated to direct current power lines
neutral_conductors 0, 1, 2... Number of neutral conductors which are part of the power line.
ground_conductors 0, 1, 2... Number of ground conductors above power conductors to avoid lightnings to hit power line itself.
gas_insulated yes or no Use this tag for gas insulated power lines using pressurized SF6 or SF6/nitrogen gas as insulation medium. Gas insulation is typically used in indoor or underground power lines.

Way Underground/Underwater power=cable

The complete power cable specification. Please note we don't make any circuit merging here : a power=cable feature is ideally mono-circuit. Underground is often overcrowded by existing networks and it's hard to find enough place for multi-circuits power cables on a whole path. That's why several underground circuits between two substations won't necessarily go the same geographical way through cities.

Tag Value Description
power cable It's a power cable
operator operator The operator of the power cable.
location underground, undersea . Default is underground The power cable location
level ... The power cable's level on the map.
voltage Voltage in volts as explained above or high, medium, low if unknown The voltage at which the power cable is operating
cables ... The number of conductor bundles in the whole cable without any circuit consideration.
wires ... The number of conductor in bundles in the whole cable without any circuit consideration.
frequency ... The frequency at which the power cable is operating
Please note that frequency=0 is correct and dedicated to direct current power cables
neutral_conductors 0, 1, 2... Number of neutral conductors which are part of the power cable.
ground_conductors 0, 1, 2... Number of ground conductors part of the power cable to avoid parasites currents.
gas_insulated yes or no Use this tag for gas insulated power cabes using pressurized SF6 or SF6/nitrogen gas as insulation medium. Gas insulation is typically used in indoor or underground locations.

Support infrastructure

Node power=tower or Node power=pole

No big other additional information will be introduced for towers or pole. They are pretty well described in the wiki and this proposal is for now consistent with this existing stuff.

Please note that such tag indicates structure of element and not its usage on a particular line (mainly depending on voltage).
Referring to IEC definitions quoted above, a tower is a support that is normally four-sided and cross-arms built in wood or metal instead of a pole which is a single vertical element.
Both should be used as described, regardless of voltage or any other rendering problem according to what User icon 2.svg RM87 (edits, contrib, wiki, heat map) explained on talk.

Here are a remainder of most used tags for both:

Node power=tower

Tag Value Description
power tower It's a power tower
ref Tower reference Power tower reference as seen in situation
height height The height of the tower
operator operator The power tower operator's name.
structure lattice, tubular or solid The structure pattern of the tower
material material The material which the tower is made of
colour tower colour The colours of the tower, separated with a ;
design tower design The design of the tower

Node power=pole

Tag Value Description
power pole It's a power pole
ref Pole ref Power pole reference as seen in situation
height height The height of the pole
operator operator The power pole operator's name.
material material The material which the pole is made of

Underground pipes and tunnels

To complete...

Location transition

Location transitions are very useful when power lines goes aerial and connect to underground or undersea cables.
Such transitions now often occurs with urban and suburbs development but with two main different types.

Fenced transition facilities

Adjacent substation proposal is dealing with it by introducing a dedicated type of transition substation : power=substation + substation=transition.
It represents the fenced area which surrounds the transition facility. Transition characteristics may be written with some other tags, please see the proposal for more information.

Concerning power lines, putting power=pole or power=tower, typically located in the middle of such transition substation, in common of both underground line and aerial line is enough.

Non fenced facilities

Sometimes, transitions between air and underground or undersea are lighter than a fenced substation. We can use tower=transition and pole=transition as below:

Transition place Tag Description
On a power tower tower=transition
Sindelfingen Gesockelter Mast 2007 by-RaBoe 03.jpg
When transition is built on a power tower.
On a power pole pole=transition
E66-Wind-converter-and-power-pole-16-05-2005.jpeg
When transition is built on a power pole, typically on low voltage networks.

Features hosted on poles/towers

Switch on a 20 kV power line pole

Sometimes, features like transformers or switches could be hosted at top of poles or towers. This is often observed on local distribution lines.

Transformer

Use transformer=yes or transformer=distribution to host a transformer on a pole or tower.
References of both pole and transformer may be distinguished with ref:pole=* and ref:transformer=*.

Switch

Use switch=yes or switch=distribution to host a power switch on a pole or tower.
References of both pole and switch may be distinguished with ref:pole=* and ref:transformer=*.

Aditionnal stuff

Junction box

Junction box on an underground power line

Underground power lines are composed of sections abutted one after the other with junctions. Each junction can be placed in a concrete box underground as for easing later access.
Let's introduce line=junction_box to map such junction boxes when we can see them during construction works.
You can see an example here.









Markers

Underground power line marker in France

Surface markers indicating the presence of such an underground power line should be mapped with line=marker.







Neutral distribution

Neutral conductor is a component of AC lines which may be present or not.
Typically on high voltage lines, operators would often choose not to add it because it's expensive. Earth will be the only way for power to go back to power plants and it's better like this.
But neutral will be there on local distribution lines, thus cables=* won't only reflect how many phases/poles we have on that particular lines.

neutral_conductors=* will be useful to precise :

  • If neutral conductor is part of the line or not
  • How manywe have to remove from cables=* to know how many phases are part of the AC line or how many poles are part of a DC line.



Furthermore, please note when neutral conductor is part of the line, voltage=* should be given between that neutral conductor and phases.
For example, French local distribution lines are 400 V between phases but 220 V between a single phase and neutral conductor. In this particular case, voltage=* should have value 220 V.

Guidelines for line mapping

To avoid confusion in routing and navigation tools, we must adopt strict guidelines to map power lines (like any other linear stuff like roads or railroads).

One line = one situation

Each Way power=line must group features with the same characteristics, especially the same number of circuits. When a tag key or value changes (or needs to be added/removed), the line feature must end and a new line start so that the properties can be correctly tagged, just as with any other feature in OSM.

Layer distinguishing

Two lines sharing some poles

As User icon 2.svg Alv (edits, contrib, wiki, heat map) suggested on talk, layer=* is needed when there are two different Way power=line partially sharing some of the poles on some stretch, like in the image on the left. (In the past some suggested not to map these as two ways, but that seems wrong when the other line doesn't touch all the nodes, yet the other line has to touch all of the pole nodes.
Their circuits are not directly connected here. The line mounted higher is maybe 10 to 25 kV, and the lower line (probably 400V) has more densely spaced poles because of the street/footway lamps it feeds. A power line way should only touch the pole/tower nodes that the conductors "touch" (via the insulators, naturally).
The elevation hardly ever corresponds to a building level, except where the line penetrates the wall of the building it was built to feed.

This situation differs when two or several circuits (even from different voltages) shares exactly the same supports and must be mapped as a single power=line.

Deprecated values

All other values of power=* (power=minor_underground_cable, power=underground_cable, ...) should be deprecated as below:

Deprecated tag Used for ? New tag(s) to use
power=minor_line Low voltage line power=line + voltage=20000 or voltage=medium if exact voltage is unknown (voltage=low if voltage is presumably lower than 1000 V)
power=underground_cable Underground cable power=cable + location=underground
power=underground_cable Sea cable power=cable + location=undersea. Please notice that a line could be under the sea floor, such case should be treated like classical terrestrial underground lines with location=underground.
power=minor_underground_cable Low voltage underground cable power=cable + location=underground + voltage=20000 or voltage=low if exact voltage is unknown


Examples

Let's try to expose current projects, maybe under construction, and legacy ones to give useful case studies to mappers.

20 kV overhead distribution lines

Way Power line:

Key Value
power line
operator ERDF
voltage 20000
frequency 50
circuits 1
cables 3
wires 1
location overhead
neutral_conductors 0 or don't use it
ground_conductors 0 or don't use it

More information:

Node Power poles or power towers:

Key Value
power pole or tower
operator ERDF in France

French "Cotentin-Maine" 400 kV project

Contentin-Main project is a power line built as for improve power transit from Flamanville new PWR nuclear reactor. It consists in a 100% overhead lines, two 3 phases circuits linked to power substations of French power grid operator, RTE France.

Way Power line:

Key Value
power line
name Cotentin-Maine
voltage 400000
circuits 2
cables 6
wires 4
frequency 50
operator RTE
location overhead
start_date 2013
neutral_conductors 0 or don't use it
ground_conductors 2

More information:

Node Power towers:

Key Value
power tower
operator RTE

Underground power lines : Annecy'nergie 2013

Underground power lines mapping

Annecy'nergie 2013 is another project conduced by RTE and it aims to put underground all suburbs overhead lines, like in many other French cities.
Furthermore, some substations were created to sustain increasing place demand of electricity.

Way Power line:

Key Value
power cable
location underground
layer -1
operator RTE
cables 3
wires 1
name Name of the power line
voltage Voltage of the line (mainly 63000V)
neutral_conductors 0 or don't use it
ground_conductors 1

More information:

Local power distribution lines

Such local lines support power transit between last transformer to consumers.
They can run along roads or be underground, especially in cities or suburbs
When distribution is done with alternative current, a neutral conductor is part of the lines.

Voltage is here given between neutral and phase !

Way Power line:

Key Value
power line
operator Local operator's name
voltage Voltage of the line (mainly 220V or 110V)
neutral_conductors 1
ground_conductors 0 or don't use it

Typical HVDC power line

HVDC power lines are used to carry power at high voltage and through long distances.
They are currently highly recommended due to the massive intercontinental power lines roll-out.

Way Power line:

Key Value
power cable
operator Operator's name
voltage Voltage of the line (maybe 750 kV or 1100 kV)
cables 2
frequency 0
neutral_conductors 1 (neutral is always present on DC power lines)
ground_conductors 0 or don't use it.

More information:

Features/Pages affected

Rendering and Tools/Renderers affected

  • power=line features should be rendered only when they are located overhead. Common rendering rules may choose to avoid underground/sea stuff (or show them with light dashes) since they can't be seen by people. Special theme maps can adapt rendering to show the location difference.
  • power=line features thickness on maps should be computed from voltage=* value : high voltage lines should be rendered a bit wider than low voltage ones, as now with power=minor_line.
  • power=pole should be rendered with a big plain grey dot instead of power=tower which can be rendered the same as now.

Tools

  • JOSM : Update presets for underground lines (post approval ticket creation)
  • ID : Idem

Render

  • Update mapnik / mapCSS definitions to show power lines as described above.
  • Update at least the following other stylesheets similarly: openstreetbrowser.org, freietonne.de, 4umaps.eu, hikebikemap.de, openstreetmap.de "OSM deustscher stil" style, Reit- und Wanderkarte, latlon.org, osmorg.crite.net, openorienteeringmap "Pseud-O" style, their own style at lightmap.uni-hd.de, and wikimedia toolserver(?) "black and white osm".

Comments

Please post in the discussion page for any comments.

Voting

Voting has not started yet.

First vote. From 2013 October 18 to 2013 November 1

8 pros against 20 cons : the proposal is rejected.
Work will keep going on this and take in account all the feedbacks exposed here.
Thank you.

  • I oppose this proposal. I don't like the depreciation of minor_line --chris66 (talk) 12:24, 21 October 2013 (UTC)
  • I approve this proposal. --Bigfatfrog67 (talk) 14:27, 18 October 2013 (UTC)
  • I approve this proposal. --hendrik-17(talk) 15:15, 18 October 2013 (UTC)
  • I oppose this proposal. As I've argued within the comment phaze: Even if otherwise a sound proposal, two things are a no-no. 1) There are no easy-to-distinguish guidelines for "very high" to "low" - how would your grandmother know which one to use? If they can't tag properly, consumers can't use the tag at all (see also Talk:Verifiability#problem_with_concept for an old 2009 example with "tall" and "average", which are values equal to the ones proposed in this case.) 2) A "big overhead wire on big pylons" is physically totally different from a "underground invisible linear something built by the power transmission company" - the tag should be different, as it has been to date. Alv (talk) 23:16, 18 October 2013 (UTC)
You can roughly estimate the voltage by the isolator's size. Power=minor_line was estimated as well, with everybody having his own threshold. --FK270673 (talk) 17:37, 19 October 2013 (UTC)
  • I oppose this proposal. Three problems: 1) "cable" vs "line". I agree with Alv here. From the perspective of mappers overhead power lines and underground cables are very different things. The first is a very visible thing that most mappers would map. The second is essentially "non-existent". Further, the proposal would immediately break existing rendering, as the cables will suddenly be rendered as overhead lines. From a specialist (power engineer) viewpoint you could argue that they are conceptually the same thing, but for the normal mapper they are definitely not. 2) The new "bundles" and "conductors" tags are very confusing. I initially suggested (and now regret that) to replace the "cables" and "wires" keys by "conductors" and "bundle" (singular!) but you have interchanged the meaning of those terms making it very confusing. 3) You suddenly introduce a new primary "line" key for junction boxes and markers. We discussed this on [1] some days ago (I didn't notice that you were talking about a new primary tag, not an attribute tag for power=line). "line" is currently used as an additional attribute tag for different features (power=line, highway=busstop, type=route relations). It would be a very bad thing to introduce it as a primary tag. --polderrunner (talk) 07:40, 19 October 2013 (UTC)
  • I approve this proposal. --FK270673 (talk) 17:31, 19 October 2013 (UTC)
  • I oppose this proposal. -- There's lots of deprecating/renaming of existing usage going on here without any real justification or a real reason for such a heavyweight operation. First of all, the "new system" is supposed to discern minor_line/line from voltage alone, so why there's then a need to unify them at all? Renaming wires/cables is made for the sake matching naming with standard x, the current keys are just as fine but do not need any deprecating. There are plenty of other "misleading" keys in use already such as highway=path etc. and that's not a serious problem! It's not problem to keep using the legacy keys here either! There's no real justification given for removal of power=cable, besides "all lines should be same", which isn't good enough reason especially as there's clear reason why it should NOT be deprecated as has been pointed out many times already! There are also good elements in this proposal though but sadly the redefine everything approach which is far too common nowadays in proposals is making the proposal totally unsuitable for adopting as is. Ij (talk) 19:24, 19 October 2013 (UTC)
  • I approve this proposal. --[[User:Bredy|Bredy] 14:00, 20 October 2013 (UTC)
  • I approve this proposal. Crochet.david (talk) 06:48, 21 October 2013 (UTC)
  • I approve this proposal. --Fanfouer (talk) 10:37, 21 October 2013 (UTC)
  • I pending this proposal. (from a non-electrical POV) The difference between overhead and underground lines should stay in the main tag (same as railway=station, railway=yard and railway=service_station)--rayquaza (talk) 12:53, 21 October 2013 (UTC)
  • I oppose this proposal. Too many renamings; underwater cables really did mess up the proposal. --Zverik (talk) 13:08, 21 October 2013 (UTC)
  • I oppose this proposal. same reason like User Alv --Seawolff (talk) 14:32, 21 October 2013 (UTC)
  • I oppose this proposal. --4rch (talk) 15:30, 21 October 2013 (UTC)
  • I oppose this proposal. Has few nice aspects, but IMO not worth tho rename all the existing stuff. The ideas about 110/220/400 V (not kV) are inconsistent.Basstoelpel (talk) 17:16, 21 October 2013 (UTC)
  • I oppose this proposal. The view and needs of electrical engineers should not overrule the view and needs of cartographers. --EvanE (talk) 19:00, 21 October 2013 (UTC)
  • I oppose this proposal. Oli-Wan (talk) 09:44, 22 October 2013 (UTC)
  • I approve this proposal. --Foxxi59 (talk) 10:00, 22 October 2013 (UTC)
  • I oppose this proposal. --Oberaffe (talk) 10:25, 22 October 2013 (UTC) For me is a high tension line different to a cable and should be not tagged with the same tag. Everything else is OK for me
  • I oppose this proposal. 1) a low voltage cabe in residential area should not be tagged with the same main tag as a high voltage overhead line. So the four main tags power=line, power=minor_line, power=cable and power=minor_cable are very meaningful to distinguish the different types of power lines. 2) The new names for the tags cables=* and wires=* are not better (not more intuitional) than the old names. 3) The tag circuit=* ist not well defined. Do unused conductors count as circuit? 7) In 'definitions' you say 'conductors carries electric current'. Which current carries a ground_conductor=*? 8) So many redefinitions, but no clear definition for power=tower and power=pole? 9) In germany also 220 kV is very high voltage. --Adjuva (talk) 12:48, 22 October 2013 (UTC)
  • I oppose this proposal. Deprecating a tag with >70k uses is just not acceptable. --Scai (talk) 15:37, 22 October 2013 (UTC)
  • I oppose this proposal. Farad (talk) 15:39, 22 October 2013 (UTC)
  • I approve this proposal. --Michi (talk) 18:40, 22 October 2013 (UTC)
  • I oppose this proposal. There's just too much "deprecate" in this proposal. A good proposal must harmonize with what's there instead of trying to overthrow long-established tagging. If this gets accepted, we'll have a ton of people doing mass-edits on the database in an attempt to "fix" all the "deprecated" tags. There are no deprecated tags. --Frederik Ramm (talk) 18:41, 22 October 2013 (UTC)
  • I oppose this proposal. See the numerous reasons above. --Dachefte (talk) 20:21, 22 October 2013 (UTC)
  • I oppose this proposal. deprecation of minor_line is a no go. level with high/low whatever is completely bogus. Nobody will care and tag whatever they like. Look at tracktype for completely nonsense use of "level" like tags. --Flohoff (talk) 21:22, 22 October 2013 (UTC)
  • I oppose this proposal. The proposal's purpose is to make mapping clearer, but instead it introduces a lot of complex changes. 1) voltage=very_high, introduced here, does not exists in the approved proposal for substations and will lead to inconsistency in tagging. 2) The new names for the tags cables=* and wires=* are not better (not more intuitional) than the old names. 3) I'm in doubt about tagging of underground lines with power=line. It is correct in the context of electrical engineering and power routing. But it can seriously break map rendering and using data in applications. We should continue our work with this proposal, not simply throw it away. It has a lot of reasoned things. --Surly (talk) 04:58, 23 October 2013 (UTC)
  • I oppose this proposal. Your introduction says that this proposal "aims to clarify the usage", but you don't mention what needs to be clarified. You also want to deprecate/rename some abundantly used tags but keep secret why they need to be renamed. All in all, the benefits of the changes don't become clear. Concerning the additions, layer=* would fit better than level=*, and pipeline=marker or power=marker seem more consistent than line=marker. I'm ok with the new values for voltage=*, but they contradict your goal to "obtain a more precise way to specify voltage". --Fkv (talk) 07:12, 24 October 2013 (UTC)
  • I oppose this proposal. I'm sorry but I also disagree on the need of deprecating power=minor_line, power=cable and the other ones as there are not major problems like we had with generator and station. There are however some things I would agree with: the new values for voltage when unknown, and a new tag for power line markers, but I would prefer power=marker. The proposal should be reduced to only add small easy things to map and understand and not deprecate these well-established tag without any serious reason. --Don-vip (talk) 22:53, 31 October 2013 (UTC)
  • I oppose this proposal. Don't change established and commonly used tags /al (talk) 09:17, 13 November 2013 (UTC)