What is the practice of connecting two metallic objects to prevent static sparks called?

The practice of connecting two metallic objects to prevent static sparks is known as bonding. Bonding involves creating a low-resistance path between conductive materials to equalize their electrical charge and eliminate the potential for static electricity buildup, which can lead to sparks and create fire or explosion hazards in environments where flammable materials are present.

Grounding, on the other hand, involves connecting electrical equipment to the earth to discharge any electrical overloads and provide a safe pathway for electricity to flow in case of a fault. Insulation refers to materials that prevent the flow of electricity, thus protecting conductive wires and components from accidental contact with surfaces or other conductors. Shielding typically involves enclosing a conductor to prevent electromagnetic interference but does not specifically connect two metallic objects for static prevention.

Understanding bonding is crucial for ensuring safety in construction environments where static electricity can be a risk, especially in areas with flammable gases or dust. Proper bonding techniques contribute significantly to the overall electrical safety standards that OSHA emphasizes in the construction industry.