What is crucial when connecting the gas piping system to ensure safety?

When connecting the gas piping system, ensuring that the system is bonded is crucial for safety. Bonding refers to the electrical connection between various metallic components of the gas system and the grounding system of the building. This is vital in preventing the buildup of static electricity and minimizing the risk of electrical shocks or fires.

When a gas piping system is adequately bonded, it ensures that any stray electric currents are safely diverted to the ground, rather than passing through the piping. This can prevent potential hazards associated with gas leaks or electrical faults.

In contrast, the other factors mentioned, such as the location of the meters, pressure settings, and the type of gas used, though important in the overall functioning of the gas system, do not directly relate to ensuring electrical safety through bonding. Properly bonding the system is essential for mitigating risks associated with electrical hazards in gas installations, making it a crucial aspect of maintaining safety in such systems.