What is the maximum allowable reading for a bonding resistance test on an LPS conductor?

The maximum allowable reading for a bonding resistance test on a lightning protection system (LPS) conductor is 1 ohm or less. This standard is crucial for ensuring effective electrical continuity and minimizing the risk of electrical discharge during a lightning strike.

A lower resistance value signifies that the bonding conductor can effectively carry any electrical fault currents safely to ground, reducing the potential for damage to structures and equipment. A reading higher than this threshold may indicate inadequate bonding, which could compromise safety and increase the likelihood of electrical hazards.

By adhering to this standard, safety measures are maximized, ensuring that any potential electrical surges from a lightning strike are efficiently managed. This understanding is essential for maintaining operational safety in environments where explosives are present.