Risk assessment (source: ERM) indicates that one of the greatest sources of risk to workers and third parties is poor earthing system maintenance.
Poor maintenance can result in increased Rise of Earth Potential and hazardous differences in potential between different parts of an earthing system affecting Worker and third parties alike.
In addition, poor measurement techniques in the past have often left the commissioning engineer with the mistaken view that the earthing system has adequately low impedance.
The tests used to measure the installed resistance value, must be carried out in a rigorous manner.
Let EES take the 'black art' out of the equation with robust, safe, predictable results to make sure your earth is performing as it should be.
