There are many worldwide standards and application specific standards. NFPA 70 calls for 25Ω or less for a typical electrical system. Communications towers, transmission/distribution towers, lightning protection systems and electrostatic discharge (ESD) grounds may all have different ground resistance targets.
Reading seems very high. What is the standard for a passing value?
There are many worldwide standards and application specific standards. NFPA 70 calls for 25Ω or less for a typical electrical system. Communications towers, transmission/distribution towers, lightning protection systems and electrostatic discharge (ESD) grounds may all have different ground resistance targets.