Electrical switchgear prefabrication is the process of manufacturing switchboards in an industrial way outside the final installation site. Switchboards are key components of electrical systems and are used to distribute electrical power and protect circuits against overloads and short circuits. Prefabrication begins with design work based on customer requirements and applicable standards. Once the design is approved, the required materials are purchased, including mounting components, wires, terminals, protection devices and breakers.
All components are then installed inside the enclosure, with the required cut-outs prepared in advance for breakers and protective devices. The finished switchboard undergoes testing and quality control before being transported to the installation site. Prefabrication brings a number of advantages, including shorter installation time, higher precision and product quality, and fewer errors related to manual on-site assembly. The process also improves worker safety by reducing risks associated with installation on a construction site.