Proximity to overhead power lines
I’m working at a small festival and 6 metres scaffold poles are being used to run festoon lighting around the carpark field park field. There is a set of overhead power lines running across the field on pylons. Obviously the poles will be kept well clear of those but I’m wondering what distance is required by regulation. ESQCR just seems to say it needs to be far enough so as not to cause danger but I assume there must be a specific distance limit (or at least a distance range dependant on voltage) and Google seems to thing this too but I’m struggling to find the specific reg.
Does anyone know what it is or which set of regulations would cover this?