Surge arrestors are now allocatable along with insualted paint to reduce clearance down to 70mm.
You are correct in terms of bird strikes being an issue but the electrical clearances that have been worked to for years are in place for lighting strikes and not traction or bird strikes. This is the primary (or secondary to gauge) issue with infrastructure and a huge financial stumbling block, as well as disruptive when interventions are required sometimes taking years to complete.
Surge arrestors are now allocatable along with insualted paint to reduce clearance down to 70mm.
You are correct in terms of bird strikes being an issue but the electrical clearances that have been worked to for years are in place for lighting strikes and not traction or bird strikes. This is the primary (or secondary to gauge) issue with infrastructure and a huge financial stumbling block, as well as disruptive when interventions are required sometimes taking years to complete.
