Hallo benötige ein längeres Ladekabel (aktuell 3m zukünftig 10m) und habe hierzu eine Frage. Treten bei längeren Ladekabeln eventuell größere Ladeverluste auf oder sind diese zu vernachlässigen?
Das Vorgesagte gilt meiner Meinung nach nur für vorkonfektionierte Ladekabel (Typ2) - und davon reden wir?
Falls wir hier von Schuko-Verlängerung reden, sieht die Sache evtl. anders aus: Da verliert man schon mal schnell 5V auf dem Kabel mal 10A sind 50W ... Stecker werden auch heiß bei schlechter Qualität ...
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Das hängt ganz maßgeblich vom Querschnitt der Leitungen ab. Querschnitt der Adern, Länge der Letung und spezifischer Widerstand des Materials bestimmen den Widerstand der Leitung. Fließt durch diesen Leitungswiderstand ein Strom, fällt an ihm eine Spannung ab. Je größer der Widerstand, desto größer ist diese Spannung. Das Produkt aus dieser Spannung und dem fließenden Strom ist die an der Leitung umgesetzte Leistung. Die wird in Form von Wärme an die Umwelt abgegeben.
Da der Leitungswiderstand der Länge direkt proportional ist, führt eine Verdreifachung der Länge bei gleichem Querschnitt also zur Verdreifachung der Verlustleistung. - von SGK1 19.09.17, 16:53 Bearbeitet
Interessant! Danke! - von Ritch 19.09.17, 18:47