Brief Description of Incident:
A crew who showed up on a job location to replace a broken guy stub pole. While we were doing our tailboard we heard cracking and several people yelled “look out” and everybody ran away from the pole as the pole top fell to the ground.
The break caused 2 feeders of 12kV to shake violently, but there was no relay. We didn’t know if the vibration from the trucks pulling up caused the pole to fall. We talked about grabbing the pole with a digger during tailboard, but the pole fell before tailboard was over.