Property talk:P2957

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throughput
volume of units that do or can pass through or be transported by the object

Represents	throughput (Q1383412)
Data type	Quantity
Template parameter	"capacity" in en:template:Infobox roller coaster
Domain	energy generating station (Q3971388), conductor (Q26717101), transport infrastructure (Q376799), tourist attraction (Q570116), piping (Q3679502), watercourse (Q355304), pumping station (Q446013), transport route (Q1297806), mine (Q820477) or reservoir (Q131681)
Allowed values	0 ≤ 𝓧 ≤ not applicable
Allowed units	passengers per hour per direction (Q4346600), kilobit per second (Q2269250), cubic metre per second (Q794261), megabit per second (Q7350781), gigabit per second (Q2243141), terabit per second (Q1084321), million tonnes per annum (Q104317437), tonne per year (Q108270163), watt (Q25236), volt ampere (Q550341), bit per second (Q549389), petajoule per annum (Q113974291), cars per hour (Q115088991) or passengers per hour (Q124334688)
Example	V.90 (Q1895223) → 56 kilobit per second Iller (Q159467) → 75 cubic metre per second Tōkaidō Shinkansen (Q660895) → 23,000 passengers per hour per direction
See also	maximum capacity (P1083), volume as quantity (P2234)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Minimum and maximum Items with highest numeric value Items with lowest numeric value Database reports/Constraint violations/P2957 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 1,739 Main statement 1,690 97.2% of uses Qualifier 49 2.8% of uses

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Units: “passengers per hour per direction (Q4346600), kilobit per second (Q2269250), cubic metre per second (Q794261), megabit per second (Q7350781), gigabit per second (Q2243141), terabit per second (Q1084321), million tonnes per annum (Q104317437), tonne per year (Q108270163), watt (Q25236), volt ampere (Q550341), bit per second (Q549389), petajoule per annum (Q113974291), cars per hour (Q115088991), passengers per hour (Q124334688)”: value unit must be one of listed. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2957#Units

Scope is as main value (Q54828448), as qualifier (Q54828449): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2957#Scope, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2957#Entity types

Type “energy generating station (Q3971388), conductor (Q26717101), transport infrastructure (Q376799), tourist attraction (Q570116), piping (Q3679502), watercourse (Q355304), pumping station (Q446013), transport route (Q1297806), mine (Q820477), reservoir (Q131681)”: item must contain property “instance of (P31), subclass of (P279)” with classes “energy generating station (Q3971388), conductor (Q26717101), transport infrastructure (Q376799), tourist attraction (Q570116), piping (Q3679502), watercourse (Q355304), pumping station (Q446013), transport route (Q1297806), mine (Q820477), reservoir (Q131681)” or their subclasses (defined using subclass of (P279)). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2957#Type Q3971388, Q26717101, Q376799, Q570116, Q3679502, Q355304, Q446013, Q1297806, Q820477, Q131681, SPARQL

Range from “0” to “+∞”: values should be in the range from “0” to “+∞”. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2957#Range

This property is being used by: commons:Template:Wikidata Infobox/core mnw:ထာမ်ပလိက်:Wikidata Infobox/core d:Template:Wikidata Infobox/core s:ban:Mal:Wikidata Infobox/core ban:Mal:Wikidata Infobox/core mr:साचा:विकिडेटा माहितीचौकट/core lv:Veidne:Wikidata Infobox/core Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)

Constraints

The listing of specific units as allowed units as allowed units constraint (Q21514353) doesn't make a lot of sense. Surely rates for mass, volume, data etc should be allowed, not just these specific ones? I was planning to make use of tonnes per year (Q99863234) and it seems a waste to either add that one specifically or to have to reformulate my statement artificially with million tonnes per annum (Q104317437).--Pharos (talk) 18:37, 25 April 2021 (UTC)

Discussion

Use for rated electrical current?

Is this the property to use for electrical current ratings, e.g. for NEMA 5-15 (Q24288456) or other power connectors? 73.223.72.200 02:59, 11 December 2023 (UTC)