The default tension type of a span pulled from the Master Catalog is always Static Tension. When a span is added to a model, the Static Tension is calculated using a percentage table that can be set by the user. If then, that span is taken from the pole and placed into the User Catalog, that tensio.
Within O-Calc Pro, there are several tension types available for a user to choose from – additional information on those tension types can be found in the wiki article on various types of tension. This article focuses on a new feature in O-Calc, called the Sag Tension Table Generator.
In O-Calc there are a number of options available to customize the tension on a span. These options can be found by selecting a span, and selecting the Tension Sag filter in the Data Entry Window.