Original subtitles

In this tutorial, I'll show you how you can plan a lightning protection system by

using the mesh method.

To do that, I already prepared a 3D building model with a flat roof for our first example

and a 3D building model with a saddled roof for the second example.

Both buildings will be planned in accordance with Lightning Protection Level 3 and have

an earthing system according to DEAN 18.0.14 without foundation earth.

Let's start with the flat roof.

If I want to place a mesh on the roof surface, I can do that quick and easy by selecting

the icon Add a Mesh.

If I move my mouse cursor over the surface, I get a preview of the mesh and can orient

the mesh on the surface.

Once I decided how I want to place the mesh, I simply click left and the program automatically

places all relevant conductors, conductor holders and clamps.

To protect the additional roof structure, I simply repeat the previous step.

As a next step, I connect the mesh on the additional roof structure with the one on

the flat roof.

Therefore I choose the command Conducting with wire from a wire mesh.

I first choose the preferred position by clicking left and then I click right and choose either

the furthest connection all the way down to the earthing system or the closest connection.

The program does the rest for me and connects the two meshes.

Let's repeat this step, but this time we choose the furthest connection.

First I click left and then right choosing furthest connection and the program connects

the meshes and places a down conductor with all relevant connections to the earthing system.

For placing down conductors from the mesh on the flat roof to the earthing system, I

can repeat the same command.

If I want to place the mesh manually on the roof, I can do that by using one of these

two commands here.

Using the first option, the cable will be cut and clamped if the direction is changed.

If I select the second option, the cable will be bent once I change directions.

It is also possible to connect two meshes or two wires by using this function here.

We select the first cable and then select the second cable.

In our second example, I will place a mesh on a saddle roof.

Then we choose the icon add a mesh for lightning protection to a surface and place the mesh

on the first side of our roof.

I repeat the last command by pressing the spacebar.

Now we want to add a cable along the ridge line and choose the appropriate icon in the

toolbar to place the cable on the ridge line.

If I click right, I can change to the realistic view to better see the conductor holders that

were placed.

Make sure to check if all cables are connected and make the missing connections where necessary.

Placing the down conductors works in the same way as before.

That's it for this tutorial.

Thanks for watching.