Plant electrical contracting is judged by downtime risk and standards—not by household wiring speed.
First-round questions
Similar plant experience, site survey before pricing, and whether design and field crews share one accountable channel.
Spell out scope
Main and sub-boards, machine feeders, earthing, lightning, fire alarm interfaces, and temporary works during install.
Close-out
As-built drawings, test records, and a short briefing for the maintenance team should be acceptance conditions.