What is the best method to test a Data Center Grounding System?

Answer 1

You need to get a OhmMEGGER. Even if everything looks good, nut & bolt connections will breakdown under electrical accidental loads or lightning occurence. You need to CadWeld all the connections and also have no hard bends in the grounding wire. Everything needs to be kept clean from corrison, dirt and no tight support straps. Important: Actual ground, if to cold water pipe or building steel, needs to be grinded down to raw metal, CadWelded and than sealed with good quality paint. This is just a snap-shot, many factors to look at - Envirnoment.