Bonding piping to rails and to which component prevents stray currents?

Bonding piping to rails and to which component prevents stray currents?

• A. Storage Tank
• B. Pump
• C. Transfer apparatus
• D. Grounding rod

Answer: (C)

Bonding piping to rails and to the transfer apparatus creates an equipotential bonding network that ties all the metal in the transfer path to the same electrical potential. Stray electrical currents will take the path of least resistance, so when the piping, rails, and transfer equipment are bonded together, any stray current can flow through this low-impedance network and back to ground rather than building up a voltage difference across the pipe walls. This keeps all connected surfaces at the same potential, reducing the risk of galvanic corrosion at joints and preventing arcing or sparks along the transfer line. While a grounding rod is part of the grounding system, bonding the piping to the transfer apparatus ensures a continuous conductive path along the entire transfer setup, which is essential for effectively preventing stray currents.

Bonding piping to rails and to the transfer apparatus creates an equipotential bonding network that ties all the metal in the transfer path to the same electrical potential. Stray electrical currents will take the path of least resistance, so when the piping, rails, and transfer equipment are bonded together, any stray current can flow through this low-impedance network and back to ground rather than building up a voltage difference across the pipe walls. This keeps all connected surfaces at the same potential, reducing the risk of galvanic corrosion at joints and preventing arcing or sparks along the transfer line. While a grounding rod is part of the grounding system, bonding the piping to the transfer apparatus ensures a continuous conductive path along the entire transfer setup, which is essential for effectively preventing stray currents.