Your first step in transformer safety: methodically evaluate the work area for safety issues. Where are the fire exits? Are there tripping or slipping hazards? Is foot traffic expected? How much work time will you have if you rope the area off?
The following are especially critical if the transformer is going into a vault: Is there sufficient working space? What emergency notification systems are in place? Will there be energized equipment nearby? What PPE do you need?
Once you’ve examined the area and addressed all safety issues at the installation site, you need to do the same thing for the route the transformer will take in getting there. For example, if it’s going into a vault how will you get it in there from the closest point a lift truck can take it?
How will you physically handle the transformer while moving it into place? What steps must you take and what equipment must you use to ensure it doesn’t get damaged and nobody loses fingers or toes?