Perhaps you can shed some light on this condition for TNCS systems in the Irish Rules. I can only see that as RE decreases RB becomes more onerous but to be honest I am not really getting the essence.
I suppose a steel lighting column is more likely to be an exposed-conductive part than an extraneous-conductive part, as it depends on the insulation rating of the luminaire.
So if we consider a steel framed building instead, does that fit the description?
I suppose a steel lighting column is more likely to be an exposed-conductive part than an extraneous-conductive part, as it depends on the insulation rating of the luminaire.
So if we consider a steel framed building instead, does that fit the description?
