Outdoor power line installation, 5-core underground cable for garden house and electric gate

I interpreted it exactly the same way for us. But 5x25 is really intense.

Meal, first of all, thank you for the quick responses. The underground cable has a cross-section of 2.5mm. A sauna is not planned. In the garden house only for lights and sockets and later for the pool pump and the garden gate.

Can you recommend a suitable distribution box for outside? The electrician from the house building company only said that everything inside is prepared for the outdoor system and that you can then plan everything else with an outdoor distributor.

There is still space in the same empty conduit for a normal 3-core cable.

If you want to build a distribution box outside anyway, the second underground cable won't really help you much. You can also protect individual circuits separately in this distribution box. Much more crucial would be – if there is still any possibility – to replace the cable with a thicker one. 2.5mm² is quite limiting for future expansions. Maybe eventually a pool heat pump should be added to the pool pump or a wallbox or or or. For your current plans, it's sufficient, but there really isn’t much room for growth. I have never dealt with outdoor distribution boxes, so unfortunately I can't give a recommendation. Except as always with the distribution box: never too small! I already have a fairly large one in the garage and after 6 months had another identical one installed next to it because it suddenly got tight.

Can you recommend a suitable distribution box for outdoors?

For that little? No distribution box at all. What else is supposed to be distributed on a large scale?

The line to the pool, to the garden house, and to the gate, for now... Later on somewhere else.

If you want to build a distributor outside anyway, the second earth cable doesn't really help you. You can also protect individual circuits separately in this distributor. Much more important would be – if there is still any possibility – to replace the cable with a thicker one. 2.5mm² is already limiting for future expansions. Maybe a pool heat pump or a wallbox or something else will eventually be added to the pool pump. It’s enough for your current plans, but then there really isn’t much room for growth.

I have never dealt with outdoor distributor boxes, so unfortunately I can't give any recommendation. Except as always with distributor boxes: never too small! I already have quite a large one in the garage and after 6 months had an identical one built next to it because it suddenly became cramped.

What cross-section would be needed for a wallbox then? I can still change it now. Once the curbstones and driveway are paved, it will be difficult.