Copper busbar are made of sheets or bars?
In cases where there is a requirement for the busbars to be slightly flexible, they are made from copper sheets. In most cases, busbars are rectangular cross-section bars or solid circular cross-section bars.
Usually bars. They are used where the length is much longer than the width or thickness. If you had to make some for a special application, you might start with sheets because they would likely be more available and you could cut them to suit your needs.
