While the grounding chain is traditional, modern tankers may also use:
Static grounding reels: Retractable cables attached to a grounding point during loading and unloading.
Anti-static additives: Mixed into the fuel to reduce static buildup.
Special coatings and materials: Minimize friction and static generation.
Even with these technologies, the chain remains an important layer of safety.
Common Misconceptions
“It’s just leftover equipment.” False—the chain is critical for preventing sparks.
“It stabilizes the truck or helps braking.” Nope—its only purpose is grounding static electricity.
“It’s outdated.” Not at all—its simplicity makes it extremely reliable and effective.
Maintenance Matters
Over time, chains can wear, corrode, or break. Routine inspections ensure:
The chain maintains contact with the ground.
Any damaged links are replaced promptly.
Proper maintenance ensures the chain continues to protect against static-related accidents.
Conclusion
That extra chain on the back of a tanker truck may seem insignificant, but it’s a vital safety feature. By safely dissipating static electricity, it prevents sparks that could ignite flammable liquids—protecting the truck, its driver, and everyone nearby. Sometimes, the simplest safety measure is also the most effective.
