Red Seal Gasfitter Class A Practice Exam 2026 – All-in-One Resource to Master Your Certification!

Proper grounding of Corrugated Stainless Steel Tubing (CSST) gas lines is primarily important for the safety of the system, particularly in relation to electrical hazards such as lightning strikes. When CSST is properly grounded, it helps to dissipate electrical energy from a lightning strike or other electrical surges, reducing the risk of damage to the gas line and potential ignition of gas leaks.

Grounding creates a path for the electrical current to flow safely into the earth, which helps to prevent dangerous situations where electrical energy could travel through the gas piping, causing fires or explosions. This protective measure is critical in ensuring the safety of both the gas line and the structure in which it is installed.

While durability, gas flow, and heating efficiency are important considerations in gas line performance, grounding specifically plays a crucial role in electrical safety and risk mitigation associated with lightning strikes.