What is the purpose of a yellow insulated copper tracer wire?

• A. To provide a grounding path
• B. To identify gas lines
• C. To indicate electrical supply
• D. To connect to underground networks

Answer: (B)

The yellow insulated copper tracer wire serves a specific purpose in the identification of gas lines. It is commonly used in conjunction with non-metallic gas pipelines to help locate these lines during excavation or construction activities. Since non-metallic pipes cannot be detected by traditional means, such as metal detectors, the tracer wire provides a visual indication of the presence of an underground gas line.

By using yellow insulation, which is standardized for utility identification, workers and responders can easily recognize that the wire is associated with gas service. This is critical for safety, as it helps prevent accidental damage to gas lines during digging or other ground-disturbing activities, thereby reducing the risk of leaks, explosions, and other dangerous situations.

The other options do not accurately reflect the purpose of the yellow insulated copper tracer wire. It does not serve as a grounding path, nor does it indicate electrical supply or connect to underground networks unrelated to gas lines.