Reno:
Would not part of the concern be IF whatever is being 'worked' on is 'live'?
A defensive comment on using an alum. ladder was 'all I'm doing is pulling cable'!
FWIW, all the ladders I owned were 'glass. Yes, we also worked off of 'baker scaffolds', pipe scaffolds, scissor lifts, snorkel booms. My bucket truck was insulated and tested as required, even though we did no line work, only lighting.
