{"tema_id":"436","string":"FrontTime","created":"2026-04-07 11:49:18","code":null,"notes":[{"@type":"Definition note","@lang":"en","@value":"High voltage pulse front time\nFor a test voltage pulse, defined as 5\/3-times the interval between the instants when the impulse is 30% and 90% of the test voltage peak value.\u00a0\nNote: Used for switching, lightning and steep impulses. "},{"@type":"Definition note","@lang":"de","@value":"HV Stirnzeit\nParameter bei Pr\u00fcfspannungsimpulsen. Definiert als das 5\/3-fache des Intervalls zwischen den Zeitpunkten, in denen der Impuls 30% und 90% des Spitzenwerts auf der Pr\u00fcfspannungskurve betr\u00e4gt.\u00a0\nAnmerkung: Wird bei Schaltsto\u00df-, Blitzsto\u00df und Sto\u00dfspannungen mit sehr kurzer Stirnzeit verwendet "},{"@type":"Scope note","@lang":"en","@value":"Unit: s "},{"@type":"Scope note","@lang":"en","@value":"DSI Unit: \\second "},{"@type":"Scope note","@lang":"en","@value":"SI Unit: s "},{"@type":"Historical note","@lang":"en","@value":"2026-04-07 Created "},{"@type":"Element note","@lang":"en","@value":"Electromagnetic.Voltage.Pulse.HighVoltage.FrontTime "},{"@type":"Bibliographic note","@lang":"en","@value":"IEC 60060-1:2025\n\u00a7 3.8.18 "},{"@type":"Example note","@lang":"en","@value":" "}]}