I am looking some earthing formulas for the earth electrodes in Concrete encasement. I believe these are published on the BS7430 standard and I do not have this standard.I only have the South African standards. My objective is to find out how the concrete ecasement improves or lower the earth...
Can someone advise on what is the legal clearance between a light pole that runs underneath the 88kV high voltage line. I need to provide some lighting under the high voltage line.
