Earthing system design

I thought I’d continue from my last blog piece talking about heavy current injection earth testing. By talking about a key application where it can potentially deliver much better results than the modern CDEGS approach. Therefore, on your earthing arrangements.

Many industrial sites built in the 1950s and 60s as industrialisation grew. This, in line with the expansion of the electrical grid. Led to a huge program of electrical substation construction around the world. What this means is that some of us own the responsibility of managing sites with ageing transformers, assets and equipment. Thus the design to obsolete standards? Therefore to know what hazard this presents today, is simply unknown.