Cables & Distribution
Cable design, conductor checks and LV/MV distribution.
Calculators in this category
Each tool has its own dedicated page.
Voltage Drop
Single-phase, three-phase and DC cable voltage drop with explained equations.
View calculator →LV Cable Sizing
Get a preliminary minimum Cu/Al cable recommendation from current, length, PVC/XLPE and installation method; compare parallel runs and explore the math.
View calculator →MV Cable Sizing
Preliminary Cu/Al XLPE sizing for directly buried and ducted 10–30 kV cables, with engineering assumptions and worked formulas.
View calculator →PE Conductor Sizing
IEC 60364-5-54 table, adiabatic check with k chosen for the conductor size and installation, and separate Cu/Al PE minimums.
View calculator →LV Busbar Sizing
Screen copper or aluminium rectangular busbar sizes from current or transformer kVA, with short-time conductor fault heating and clear IEC 61439 verification limits.
View calculator →Cable Tray Fill
Single-row width check from cable outside diameters.
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