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

brad bradhaack at fastmail.com
Tue Jul 30 15:39:41 UTC 2019


On 7/30/19 2:59 AM, Warin wrote:
> 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
+1  I think this is best.


>
>>
>>
>> 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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