When is it necessary to use a tracer wire for underground gas piping?

Using tracer wire for underground gas piping becomes necessary when the installation depth exceeds the detection capabilities of the tools being used. This is due to the fact that as underground utilities are buried deeper, traditional detection methods may become ineffective, making it challenging to locate the gas line in the future. Tracer wire allows for a reliable means to trace the path of the gas line, ensuring it can be safely located and accessed without risking damage to the line.

In scenarios such as installation in residential areas or when a gas line is under water, local regulations or conditions may dictate the need for different safety measures or practices, but these do not inherently necessitate tracer wire. Similarly, the length of the gas line, such as being longer than 100 feet, does not directly relate to the requirement for tracer wire, as it is more about depth and detection capabilities. The primary focus should be on the installation depth and the ability of detection tools to successfully identify the location of the buried gas line.