I am looking for a bollard design for utility wood pole protection form heavy traffic area and parking lot.
I am wondering if bollards (steel pipe) around utility pole required to be bonded to the pole ground. I have seen bollard design for padmount transformer, which requires bonding to transformer grounding grid. This is quite understandable and practical; however, I am not sure about the bonding requirement for steel pipe bollard around utility pole. If it is required we can bond the bollard to pole ground, however, it would not be easy specially if we are installing bollards for a existing pole. Does anyone have any experience or comments about this?
I have reviewed one utility bollard design for this application (mechanical protection for pole). They use a PVC pipe around the steel pipe with waterproof PVC end cap at the bottom to isolate it and to prevent the touch potential, however; I am not sure how effective that would be if there is a high level fault occurs near the pole structure. Any comments?
I am wondering if bollards (steel pipe) around utility pole required to be bonded to the pole ground. I have seen bollard design for padmount transformer, which requires bonding to transformer grounding grid. This is quite understandable and practical; however, I am not sure about the bonding requirement for steel pipe bollard around utility pole. If it is required we can bond the bollard to pole ground, however, it would not be easy specially if we are installing bollards for a existing pole. Does anyone have any experience or comments about this?
I have reviewed one utility bollard design for this application (mechanical protection for pole). They use a PVC pipe around the steel pipe with waterproof PVC end cap at the bottom to isolate it and to prevent the touch potential, however; I am not sure how effective that would be if there is a high level fault occurs near the pole structure. Any comments?