[Tagging] Charging stations: socket:<type>:output -- which format for the value?

Warin 61sundowner at gmail.com
Tue Jul 30 08:59:31 UTC 2019


On 30/07/19 12:38, brad wrote:
> I don't have an opinion about kw or w, but if the value is only a 
> number, then to prevent confusion and reduce mistagging the key should 
> specify, output-kw=22 .

OSM typically places unit after the value.
For examples see 
https://wiki.openstreetmap.org/wiki/Map_Features/Units#Explicit_specifications

>
>
> On 7/29/19 5:00 AM, dktue wrote:
>> I'd vote for kW aswell (and a value of "22" then), since we're not 
>> always using SI and not always base-unit-values (see kilometers per 
>> hour).
>>
>> Am 29.07.2019 um 12:53 schrieb Martin Koppenhoefer:
>>>
>>>
>>> Am Mo., 29. Juli 2019 um 12:39 Uhr schrieb dktue 
>>> <email at daniel-korn.de <mailto:email at daniel-korn.de>>:
>>>
>>>     Hello,
>>>
>>>     the OSM-Wiki-page on charging stations [1] defines the tag
>>>     socket:<type>:output=watt
>>>
>>>     wheres the examples contain values like "22 kW".
>>>
>>>     What would the preferred format be? "22000" or "22 kW"? I would
>>>     like to
>>>     clearify this on the wiki-page.
>>>
>>>     Personally I would prefer "22000" as it fits with other
>>>     OSM-values (no
>>>     units).
>>>
>>>
>>>
>>> generally people are encouraged to add units for disambiguation 
>>> reasons and to use locally used units and preferably SI units.
>>>
>>> For power, no default units are currently specified on this page:
>>> https://wiki.openstreetmap.org/wiki/Map_Features/Units
>>>
>>> And it doesn't even mention horsepower for power, a unit that for 
>>> many people may be more evocative than Watt (everybody can imagine 
>>> 30 horses, but how much are 22 kW?) ;-)
>>>
>>> Personally, if we were to set up a default for power units, I would 
>>> prefer kW, because if we'd use Watt we will get very high numbers 
>>> for MW (e.g. needed for power generators). Presuming, we would have 
>>> the same standard unit for all things power, and not different 
>>> defaults for socket and say power stations.
>>>
>>> Cheers,
>>> Martin
>>>
>>>
>>>

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