What provision must be made to manage static electrical charges in compressed air equipment?

The requirement for electrical bonding to earth is crucial when managing static electrical charges in compressed air equipment. Static electricity can accumulate in systems that handle gases or liquids, especially if these systems involve movement, like those in compressed air equipment. If this static electricity is not adequately managed, it can lead to explosive discharges or create hazards in areas where flammable materials are present.

By providing electrical bonding to earth, any static charge that builds up can be safely dissipated to the ground, preventing the risk of ignition or equipment failure. This practice not only ensures the safety of personnel who operate or work near the equipment but also protects the integrity of the machinery itself.

While regular inspections of equipment, manual control systems, and monitoring by personnel are all important safety measures in operational procedures, they do not directly address the fundamental need for grounding or bonding as a means to prevent static electricity hazards. Thus, electrical bonding to earth is the most relevant and effective approach to manage the risks associated with static electrical charges in this context.