Plumber Red Seal · Question
Why must the gas piping system in a building be bonded to the main electrical service ground?
Bonding creates an equipotential plane, ensuring that if the gas line is accidentally energized (e.g., by a stray wire), the current has a safe path to ground,
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Question: Why must the gas piping system in a building be bonded to the main electrical service ground?
Answer options:
- To prevent galvanic corrosion between dissimilar metals
- To provide a path for natural gas to vent in case of a leak ✅ To safely dissipate electrical fault currents and prevent static buildup
- To allow the gas meter to be read remotely
Correct answer: To safely dissipate electrical fault currents and prevent static buildup
Explanation: Bonding creates an equipotential plane, ensuring that if the gas line is accidentally energized (e.g., by a stray wire), the current has a safe path to ground, tripping the circuit breaker. It also prevents static electricity from building up and causing a spark.
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