To measure the clearance between a conductor and other objects such as buildings or vegetation, or to another conductor, use the Clearance Measure tool instead.
That tool also provides fine tuning for specific environments, conductors in a span, and the start and end points.
To measure the clearance between a conductor and the ground use the Ground Clearance Measure tool on the toolbar:
Once selected, hover over or left-click a conductor. Neara will display the worst-case ground clearance of a span as a magenta line in both Perspective view and Profile view:
In the Properties panel in the sidebar, you can select an Environment to see clearances under different conditions, with the cable sag shown:
The ground line measured to is based on the terrain model chosen in the survey tool. See Create a ground / terrain profile
Set up different ground clearance heights
One of the most important aspects of any design is ensuring that conductors do not sag below a certain ground clearance height. If it sags too low either its tension must be increased or its supporting poles moved closer together.
Neara makes it easy to visualize this in the Profile view. The blue line parallel to the ground represents the clearance level, and the dotted lines represent the cable span under different environmental conditions:
Ground clearance lines and Clearance Rules can be added and modified in the project under the Clearances menu:
