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Statements

Subject Item
dbr:Prospective_short-circuit_current
rdfs:label
Verwachte kortsluitstroom Prospective short-circuit current
rdfs:comment
Verwachte kortsluitstroom is de maximale hoeveelheid stroom die door een bepaalde installatie kan stromen onder kortsluitomstandigheden. In het Engels wordt de term prospective short-circuit current gebruikt. Het wordt bepaald door de spanning en impedantie van het voedingssysteem. The prospective short-circuit current (PSCC), available fault current, or short-circuit making current is the highest electric current which can exist in a particular electrical system under short-circuit conditions. It is determined by the voltage and impedance of the supply system. It is of the order of a few thousand amperes for a standard domestic mains electrical installation, but may be as low as a few milliamperes in a separated extra-low voltage (SELV) system or as high as hundreds of thousands of amps in large industrial power systems.
dcterms:subject
dbc:Electric_power
dbo:wikiPageID
1138512
dbo:wikiPageRevisionID
1122315318
dbo:wikiPageWikiLink
dbr:Circuit_breaker dbr:Power_system_protection dbr:Fault_(power_engineering) dbr:Current_limiting_reactor dbr:Symmetrical_components dbr:Electric_current dbc:Electric_power dbr:Voltage dbr:Electrical_impedance dbr:Short_circuit dbr:Voltage_drop dbr:ABB dbr:Electrical_grid dbr:Orders_of_magnitude dbr:Residual-current_device dbr:Fuse_(electrical) dbr:Interrupting_rating dbr:Electric_arc dbr:Ampere dbr:Separated_extra-low_voltage dbr:Breaking_capacity dbr:General_Electric dbr:Mains_electricity
dbo:wikiPageExternalLink
n9:GET-3550F%3FTNR=White%20Papers%7CGET-3550F%7CPDF&filename=GET-3550F.pdf%7Ctitle=Short-Circuit
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n6:4twRM dbpedia-nl:Verwachte_kortsluitstroom wikidata:Q7250838
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dbo:abstract
The prospective short-circuit current (PSCC), available fault current, or short-circuit making current is the highest electric current which can exist in a particular electrical system under short-circuit conditions. It is determined by the voltage and impedance of the supply system. It is of the order of a few thousand amperes for a standard domestic mains electrical installation, but may be as low as a few milliamperes in a separated extra-low voltage (SELV) system or as high as hundreds of thousands of amps in large industrial power systems. Protective devices such as circuit breakers and fuses must be selected with an interrupting rating that exceeds the prospective short-circuit current, if they are to safely protect the circuit from a fault. When a large electric current is interrupted an arc forms, and if the breaking capacity of a fuse or circuit breaker is exceeded, it will not extinguish the arc. Current will continue, resulting in damage to equipment, fire, or explosion. Verwachte kortsluitstroom is de maximale hoeveelheid stroom die door een bepaalde installatie kan stromen onder kortsluitomstandigheden. In het Engels wordt de term prospective short-circuit current gebruikt. Het wordt bepaald door de spanning en impedantie van het voedingssysteem. Beveiligingsinrichtingen zoals automaten en zekeringen dienen een te hebben die de verwachte kortsluitstroom overschrijdt, om de veiligheid van het circuit te waarborgen tegen een storing. Wanneer een grote elektrische stroom wordt onderbroken, vormt zich een vlamboog en als het uitschakelvermogen van een stroomonderbreker wordt overschreden, zal deze boog niet worden gedoofd. De stroom zal doorgaan, wat resulteert in schade aan de apparatuur, brand of explosie.
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wikipedia-en:Prospective_short-circuit_current?oldid=1122315318&ns=0
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5876
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wikipedia-en:Prospective_short-circuit_current