Original subtitles

In this tutorial, I will demonstrate the functionality of risk areas and how to work with them.

Risk areas are used in DIN plan to support specific partial automatism, for example when

placing a mesh on the roof or generating a down conductor.

Usually the risk areas operate in the background and do not need to be visible.

However, if you want to modify a building later on, we need to pay attention that the

risk areas are considered and changed as well.

To make the risk areas visible, we open the lightning protection options, move to the

visibility tab and check the box for analyzed geometries.

Once we now generate a down conductor, the considered risk areas will be illustrated

in color.

To be able to take a more detailed look at the risk areas, I will hide the building shelves.

The only area that is currently not displayed is the geometric ring area.

It can be displayed if I click inside the ring.

Then I can also see the properties of this area and the type of the area here on the

left side.

The geometric ring area is created to determine the relevant area for the earth electrode

length calculation.

The next area, the foundation outline, is generated once the earthing system is calculated.

This area is the area for the outline of a building and is always on a level with the

test joint.

It is automatically generated once we create a down conductor or an earth connection.

The standard roof risk areas are the two purple ones.

They are required to, for example, be able to place a mesh on the roof or to identify

the levels that can be used to create or connect down conductors.

An additional risk area that is shown here in green is the risk area of the parapet.

We need this one to identify the parapet and its height and width in order to place a wire

on its center or consider it for the cable routing.

We will take a look on how to manually add risk areas later on.

But first let's unhide the building and see what happens when we manipulate the building

shell.

If we pull out the floor slab and the building, we can observe that the risk areas did not

automatically do the same and adapt.

This can cause problems when we create new down conductors or calculate the protected

volume.

Once we calculate the protected volume, we can see that the rolling sphere considers

the risk area and creates violations of the protected volume.

Now we have two options to fix that.

We can either adapt the risk area manually by using the manipulator or we delete the

risk areas and set them again.

We can either delete them individually by selecting each risk area and pressing the

delete key or we choose lightning protection, remove LPS accessories, remove risk areas

and delete all at once.

To generate the two lower risk areas again, we need to recalculate the earthing system.

Earthing system and risk areas then automatically adapt to the new geometry.

For the individual assignment of the roof risk areas, we can use this drop down menu

here.

The first command allows us to place the risk areas manually onto the roofs.

The second command is used for defining the risk areas for the parapet.

To do that, we first need to select the underlying roof risk area.

Then we can define the partial areas, the areas of the parapet.

If we have already defined the parapet risk areas but afterwards want to change the geometry

of the parapet, we should always delete the parapet risk areas first.

Otherwise it could happen that we adapt for example the height of the parapet, define

a new risk area and then notice that we have now two overlaying

parapet risk areas which causes problems in the calculations.

Should you encounter problems during your lightning protection planning, for example

when generating down conductors, I recommend that you hide the building and display the

risk areas.

This often helps to identify an error and makes it easier to fix it.

If you are not too deep into the lightning protection planning when encountering an error,

you could always select lightning protection, remove LPS accessories and remove lightning

protection system.

This way all of the lightning protection components including the risk areas are deleted and you

have a clean drawing.

That's it for this tutorial.

Thanks for watching.