Well to sound like a broken record:
Bucket trucks are not insulated, nor are the majority of booms. Sections of booms are insulated (non conductive) and are marked by arrows or lines (what your spotter is noting as you approach energized conductors) to indicate the "safe" sections. Fiberglass buckets are not insulted it is the plastic insert that is.
A di-electric test, insulation test, what ever you want to call it, only certifies the boom at the time of certification, the state of the boom may change over time (cracks, dirt, oil, bird nests, chewing squirrels, new hydraulic lines etc.) and you cannot rely on the boom alone (at least in tree work). Multiple layers of protection are needed such as maintain distance, insulated (and tested) poles, insulated (and tested) gloves, bucket insert, tested boom, training, knowledge and experience, hold-offs in place etc.
In BC the limit of approach (minimum distance) is not 10 feet it is 3m, 4.5m and 6m depending upon voltage (phase to ground) see:https://www.worksafebc.com/en/law-p...nes/guidelines-part-19#SectionNumber:G19.24.1
If you are getting shocked in a substation you need to stop work and talk to the supervisor of the substation. In general new substations should be set upon a metal grid and free draining gravel and people switching are in "bomb suits).
All this being said I do wonder of you pinched a nerve, I banged an elbow today and it could be described as feeling like a shock.
Bucket trucks are not insulated, nor are the majority of booms. Sections of booms are insulated (non conductive) and are marked by arrows or lines (what your spotter is noting as you approach energized conductors) to indicate the "safe" sections. Fiberglass buckets are not insulted it is the plastic insert that is.
A di-electric test, insulation test, what ever you want to call it, only certifies the boom at the time of certification, the state of the boom may change over time (cracks, dirt, oil, bird nests, chewing squirrels, new hydraulic lines etc.) and you cannot rely on the boom alone (at least in tree work). Multiple layers of protection are needed such as maintain distance, insulated (and tested) poles, insulated (and tested) gloves, bucket insert, tested boom, training, knowledge and experience, hold-offs in place etc.
In BC the limit of approach (minimum distance) is not 10 feet it is 3m, 4.5m and 6m depending upon voltage (phase to ground) see:https://www.worksafebc.com/en/law-p...nes/guidelines-part-19#SectionNumber:G19.24.1
If you are getting shocked in a substation you need to stop work and talk to the supervisor of the substation. In general new substations should be set upon a metal grid and free draining gravel and people switching are in "bomb suits).
All this being said I do wonder of you pinched a nerve, I banged an elbow today and it could be described as feeling like a shock.
