Original subtitles

In this tutorial, I will demonstrate how to work with parapets and how to include them

in the Lightning Protection System.

To create a parapet on this roof structure, we first select the structure and then go

to the properties on the left, where we select parapet and yes.

Now a parapet is placed on the roof structure and we can start adapting it according to

our needs.

The entire parapet will adapt to the changes we make if we have selected the complete roof

structure.

However, we can choose to adapt single parts by selecting them individually and either

deleting them by pressing delete or adapting them in the properties window as before.

Before we can integrate the parapet into the Lightning Protection System, we first have

to define the parapet risk areas.

We can do that by using this command here.

For more information, please also see the tutorial on risk areas.

Now we place a regular mesh on the roof surface.

For the additional roof structure, we use a mesh without a ring.

In order to integrate the parapet into the Lightning Protection System, we select it

and change the lightning protection use from unsuitable to the status suitable.

Keeping the control button pressed, we can select the other parts of the parapet and

change the status as well.

Now we can connect the mesh on the roof surface with the parapet by using the command add

mesh down conductor with wire.

Here we can choose where we would like to connect our down conductor, either choosing

the nearest option and connecting directly to the parapet, connecting to the other mesh

or the longest option, a connection to the earthing system.

We can speed up the process by clicking right and choosing closest connection or last connection

or pressing N or L on the keyboard.

Pressing N connects the mesh with a clamp directly to the parapet.

In addition, we can create a down conductor on the outside of the parapet.

Again we can choose where we want to connect our down conductor.

Once integrated into the Lightning Protection System, the parapet is included into the separation

distance calculation and considered for the protection volume.

Lastly we take a look on how to add a mesh cable segment on a parapet.

Therefore we choose the following command and confirm the placement by clicking on the

parapet.

Pressing the spacebar repeats the last command and saves time.

Here as well it makes a difference whether or not the parapet is marked as suited or

unsuited for the Lightning Protection use if we make a connection to the mesh on the

roof structure.

For the suitable parapet, we have the option to connect the mesh with a clamp to the ring

or to the parapet directly.

If we choose the ring, an additional connection to the parapet will be made.

For the unsuitable parapet, the connection can solely be made with the ring on the parapet.

Here no connection to the parapet is possible.

If you later on choose to make changes to the building or the parapet, it's important

to delete the risk areas beforehand.

The parapet will adapt to the new building structure, however, risk areas defined before

the change will not automatically adapt.

You'll find another, more detailed tutorial on risk areas in our e-learning platform.

That's it for this tutorial, thanks for watching.