What is the maximum allowable reading when conducting a bonding resistance test?

The maximum allowable reading for a bonding resistance test is set at 1 ohm. This standard ensures that electrical bonding systems maintain a sufficiently low resistance to prevent hazardous potential differences and to facilitate effective grounding of equipment. By keeping the resistance low, the risk of sparking and electrical faults in environments where explosives or sensitive electronics are present is greatly reduced. A reading over 1 ohm may indicate insufficient bonding, which could lead to unsafe conditions, particularly in explosive atmospheres. This is why the threshold is critical in the context of electrical safety protocols within military operations.