How to install the copper busbar of a high-voltage switchgear

It is usually necessary to joint busbars on site during installation and this is most easily accomplished by bolting bars together or by welding. For long and reliable service, joints need to be carefully made with controlled torque applied to correctly sized bolts. A busbar is a metallic strip or bar, typically made from copper or aluminum, that conducts electricity within a switchboard, distribution board, substation, or other electrical apparatus. From initial unboxing and inspection upon arrival to final commissioning and operation, overlooking any detail can lead to equipment failure or even severe safety hazards. This assumption is widespread in workshops, on job sites, and even during procurement reviews.