Theoretically, a resistance to ground of 1,000,000 ohms is considered capable of dissipating a static electrical charge. So why then does my safety program (and NFPA 77) require a resistance to ground of 10 or 25 ohms OR LESS, depending on the metal used in my system? (e.g. end-to-end resistance of a bonding wire should be less than 10 ohms for COPPER and less than 25 ohms for STAINLESS STEEL)
Well, to make this short and simple, the best way to explain it is the 10/25 ohms resistance is a VERY LARGE SAFETY FACTOR/MARGIN!