What is the primary purpose of a bonding wire between metallic containers?

What is the primary purpose of a bonding wire between metallic containers?

• A. To increase the electrical conductivity between containers
• B. To equalize the buildup of static electricity
• C. To prevent corrosion of the containers
• D. To monitor gas leaks

Answer: (B)

Bonding wires keep metal containers at the same electrical potential. As flammable liquids are transferred or poured, static charges can build up on each container. If there’s a potential difference between containers, a spark can jump when they’re connected or during handling, creating an ignition risk. The bonding wire provides a conductive path so charges flow and equalize, eliminating the voltage difference and the chance of a spark. This isn’t about making everything more conductive or preventing corrosion, and it doesn’t serve as a leak detector.

Bonding wires keep metal containers at the same electrical potential. As flammable liquids are transferred or poured, static charges can build up on each container. If there’s a potential difference between containers, a spark can jump when they’re connected or during handling, creating an ignition risk. The bonding wire provides a conductive path so charges flow and equalize, eliminating the voltage difference and the chance of a spark. This isn’t about making everything more conductive or preventing corrosion, and it doesn’t serve as a leak detector.