Power switches preset

[flacombe]

Hi,

Last year, a proposal was adopted to extend power=switch features on OSM.
https://wiki.openstreetmap.org/wiki/Proposed_features/Power_switching_extension
A key switch=* can be used on power=switch objects and take 4 values : disconnector, circuit_breaker, mechanical and earthing
​https://wiki.openstreetmap.org/wiki/Key:switch

According to ​https://wiki.openstreetmap.org/wiki/Tag:power%3Dswitch
It may be useful to create a preset for power switches, and ask mappers for following tags

• switch
• cables
• operator
• voltage
• ref

As power=transformer, a switch can also be on top of a pole.
In this case (and only), switch=* will be used with power=pole (and not power=switch)
It may be good to create a specific preset "pole with switch" and ask for same tags than standalone switches.
Since some keys can be used both for pole and switches, some namespaces may be useful :
ref => pole:ref and switch:ref

As a side business, it may be good to add a validation rule to warn about any power=switch without switch key.

Let me know if you have any issue to take care of this
Thanks in advance :)

[bhousel]

Most of this seems ok..

As power=transformer, a switch can also be on top of a pole.
In this case (and only), switch=* will be used with power=pole (and not power=switch)
It may be good to create a specific preset "pole with switch" and ask for same tags than standalone switches.

Let's not do this part ☝️ Switches should always be power=switch. If people want to put it on a pole, they can use location=pole or something.

[flacombe]

Let's not do this part ☝️ Switches should always be power=switch. If people want to put it on a pole, they can use location=pole or something.

I'm afraid not
How can we use power=pole and power=switch on the same node ?
This is intended for such objects : https://www.openstreetmap.org/node/2419117926

At least, this is the reviewed tagging

[bhousel]

How can we use power=pole and power=switch on the same node ?

We can't.. So people should just make 2 nodes - 1 node for the pole, and 1 node just next to the pole for the device.

[flacombe]

We can't.. So people should just make 2 nodes - 1 node for the pole, and 1 node just next to the pole for the device.

This won't match reality
Creating a node beside the pole for the switch may indicate the switch is beside the pole while it is actually on it.
We are discussing about such things : https://auvergne-rhone-alpes.lpo.fr/images/cna/pylone_interrupteur.jpg
While other stuff like this exists : https://wiki.openstreetmap.org/wiki/File:Power_63kV_dual_bay_disconnector_circuitbreaker.jpg where a dedicated power=switch node is relevant.

A relation involving the line and the pole node may also be created. This will add a lot of complexity to data while power=pole + switch=* makes sense.

And there are dozen of objects described like this currently. It takes years to change this

[bhousel]

@octagonal if you want to try this issue, we're looking for a new "Power Switch" preset:

• copy data/presets/presets/power/transformer.json to data/presets/presets/power/switch.json
• edit that new file to
  • change the "name" to "Power Switch"
  • change the "tags" to "power": "switch"
  • change the array of fields to just include switch, cables, voltage, location, operator, ref
• some of those fields don't exist yet, so you will need to create .json files for them too:
  • switch: copy data/presets/fields/windings/configuration.json to data/presets/fields/switch.json
    • This will be a combo field with a fixed list of values to choose from..
    • edit that new file and change details..
  • cables: copy data/presets/fields/windings.json to data/presets/fields/cables.json
    • This will be a numeric field with a spinner so the user can increment/decrement..
    • edit that new file and change details..
  • voltage: copy data/presets/fields/voltage/primary.json to data/presets/fields/voltage.json
    • This will be a combo field which will offer the user commonly used values to choose from..
    • edit that new file and change details..
• npm run build

I left out some of the "change details" parts above, but try it and let me know if you need more info! 🙇