Cable diameter

[jdsouza]

Hello.

Please advise the safe diameter of the 4-core copper cable for 20 kW load with a distance of 75 to 100 M from the pillar box to the consumer?

 

[James]

there are online calculators for this,
crucially you will need to specify the current in Amps an the distance exactly (or use worst case distance)
you will also need ambient temperature, method of installation i.e. direct in ground, in a pipe (duct) or in free air/

 

[jdsouza]

there are online calculators for this,
crucially you will need to specify the current in Amps an the distance exactly (or use worst case distance)
you will also need ambient temperature, method of installation i.e. direct in ground, in a pipe (duct) or in free air/

I can specify the voltage, which is 380-415V 3-Phase. Unarmoured, In a pipe.

 

[James]

Cable Calculator - Cable Sizing & Selection | Eland Cables

How to find the size of a cable? Cable size calculator to aid specification of cables to British Standard BS7671 and International standard IEC 60364-5-52. Use the cable calculator to add your installation details for sizing guidance and cable type suggestions. Full technical support available.

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