Plumber Red Seal · Question
For a new installation of Corrugated Stainless Steel Tubing (CSST) for natural gas, what is a critical bonding requirement according to most Canadian jurisdictions and manufacturers?
To mitigate the risk of perforation from an indirect lightning strike, gas codes require CSST to be bonded to the electrical grounding system with a copper cond
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Question: For a new installation of Corrugated Stainless Steel Tubing (CSST) for natural gas, what is a critical bonding requirement according to most Canadian jurisdictions and manufacturers?
Answer options:
- The CSST must be bonded to the nearest water pipe.
- A separate bonding conductor must be run parallel to all CSST piping. ✅ The CSST system must be bonded to the building's electrical service grounding system.
- No bonding is required if the CSST has a yellow plastic jacket.
Correct answer: The CSST system must be bonded to the building's electrical service grounding system.
Explanation: To mitigate the risk of perforation from an indirect lightning strike, gas codes require CSST to be bonded to the electrical grounding system with a copper conductor of a specified size. This provides a safe path for electrical energy to dissipate.
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