Reguła bezpiecznika
2,5 mm² → C16-C20, nie C25.
Spadek napięcia
Do 25 m — tabela; od 30 m sprawdź (3% oświetlenie, 5% reszta).
Przykłady
Piekarnik 7 kW: 6 mm², C32. Klimatyzacja: 2,5 mm², C20.
Trójfaz
15 kW przy 400 V: 5×6 mm², C32.
Design 2025-06-08 · 8 min
Przekrój kabla — szybki przewodnik
Integrating pulse-output meters into your design. Connection diagrams, CT selection, AMR system based on GorkyCAD.
Author: GorkyCAD Team
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