The Step 2 sub-function creates 2 TCL files:

• Step2-sys.TCL (default name) for applying the constraints to all nodes.
• Step2-undo.TCL (default name) for removing the constraints after the sagging lines have been calculated.

The step 2 input pad requires the following data to be entered or modified: The names of the TCL files to be created (default names see above) The nodal support constants

The Step 2 sub-function is used for applying rigid constraints to all nodes of the system. Performing the analysis with this totally restrained system and the option Cable sagging selected in Recalc will give the sagging line of all cables without any other node deformations. These cable displacements may then be superimposed to the original cable geometry in step 3. The nodal support constants are per default set to 1e12. They may be modified in the input pad.

The TCL file step2-sys.TCL must be imported after its creation (after Ok is pressed). Then the analysis is performed using the Recalc function. The TCL file step2-undo.TCL must afterwards be imported before proceeding to step 3.