2 x portable work cabin

[baazab]

Hi everyone need help pls

I need to power 2 x portable work cabin

The meter people came today installed new supply with one meter 25 meters away from the 2 cabin

Each cabin have 3 heaters sockets lights

My question is what size Swa cable can I use

Cable length 35 meters from meter box

 

[baazab]

Thank you everyone thanks westward10