Raceway is often run overhead. That often means working on ladders or scaffolding when accessing it. Scaffolding is meant to be assembled only by people trained in assembling it. If you haven’t been trained to assemble it, don’t. But always inspect scaffolding before using it or ask the crew that assembled it to confirm that it is ready for use.
Being Careful with Raceway, Part 2
When running raceway overhead, practice ladder safety.