Cable Current Rating Calculator (IEC 60287)
Conductor Cross-Sectional Area:
35 mm²
50 mm²
70 mm²
95 mm²
120 mm²
150 mm²
185 mm²
240 mm²
300 mm²
400 mm²
500 mm²
630 mm²
Conductor Material
Copper
Aluminium
1. Cable Construction
Conductor Diameter (mm)
Inner Semiconductor Layer Thickness (mm)
Insulation Thickness (mm)
Outer Semiconductor Layer Thickness (mm)
Metal Sheath Thickness (mm)
Armouring Thickness (mm)
Nominal Diameter of a Sheathed Phase (mm)
2. Installation Parameters
Installation Method
Direct Buried Trefoil
Inside 3 x Ducts (Trefoil) - Buried
In Free Air Directly Exposed to Solar Radiation
Burial Depth (m)
Soil Thermal Resistivity (K·m/W)
Ambient Temperature (External Medium) (°C)
Duct Outer Diameter (mm)
Duct Internal Diameter (mm)
Duct Material
Concrete
Fibre
Asbestos
Earthenware
Polyvinyl chloride (PVC)
Polyethylene (PE, HDPE)
Metal
Other
Installation Condition
In metallic conduit
In fibre duct in air
In fibre duct in concrete
In asbestos cement: duct in air
In asbestos cement: duct in concrete
Gas pressure cable in pipe
Oil pressure pipe-type cable
Plastic ducts
Earthenware ducts
Water filled plastic ducts
Other
3. Operating Conditions
Cable Operating Voltage (kV)
Operating Frequency (Hz)
Cable Operating Temperature (°C)
Calculate
Cable Cross-Section
Cable Installation