I’m renovating my house and would like to have my electrician lay the supply cable before I have my charger installed. What cable size do I need?

For 7kW charger installations:

• 1 x 6mm 3 core armoured cable up to 30m,
  1 x 10mm 3 core armoured cable over 30m

For 22kW charger installations:

• 1 x 6mm 5 core armoured cable up to 30m,
  1 x 10mm 5 core armoured cable over 30m