Bonding is defined as the process of

• A. Insulation
• B. Bonding
• C. Ground fault protection
• D. Shielding

Answer: (B)

Bonding is the practice of creating a low-impedance, permanent electrical connection between exposed metal parts and conductive systems so they all share the same electrical potential. This minimizes voltage differences between different pieces of metal in a building, which reduces the risk of shock if a fault occurs and helps protective devices operate reliably by giving fault current a clear path. It’s not insulation, which prevents current from flowing; nor shielding, which protects conductors from interference or physical contact; nor ground fault protection, which is a device that detects leakage and trips the circuit. Bonding ties together metalwork such as pipework, enclosures, and structural steel to keep them at the same potential, complementing grounding (earth reference) rather than replacing it.