- heck the approved electrical drawing and DB schedule.
- Verify the DB rating, incoming supply, IP rating, and installation location.
- Fix the DB securely, plumb and level, with suitable working clearance.
- Install the incoming cable, cable glands, and cable supports.
- Connect the incoming supply to the designated incomer terminals.
- Install and connect the busbar and outgoing protective devices as designed.
- Terminate phase, neutral, and protective earth conductors correctly.
- Tighten terminals to the manufacturer's specified torque.
- Label all outgoing circuits according to the DB schedule.