How do you ensure proper grounding and bonding of electrical equipment?

• A. Confirm proper connections to earth ground, bond equipment frames and enclosures to reduce touch potentials, and test continuity.
• B. Grounding is optional if the panel is new.
• C. Bonding only matters for metal doors.
• D. Use insulation tape to cover grounding points.

Answer: (A)

Grounding and bonding create a safe reference and a reliable fault path so that if a live conductor touches metal, the fault current has somewhere to go and protective devices trip quickly. The best approach includes three key actions: confirm proper connections to earth ground so the system has a solid path to the earth, bond equipment frames and enclosures so all exposed conductive parts sit at the same potential and touch voltages are minimized, and test continuity to ensure these bonding and grounding paths are continuous and low-resistance. This combination reduces shock risk and helps ensure the overcurrent protective devices will operate correctly during faults.

Grounding is not optional, and bonding applies to all exposed metal parts, not just a metal door. Using insulation tape to cover grounding points does not establish a true electrical path or reliable bond and can hide faults, so it isn’t a proper grounding or bonding method.