Copper items of miscellaneous variants that in terms of form, cross-section, and size are variable, and can be adapted to the respective layout situation in the enclosure. Busbars (bending) are defined by:
A part (rail of defined height and width, or a macro with a rectangular cross-section)
A form (path of the rectangular basic form to shape the rail)
A bending radius for positions where the rail is to be bent.