What type of wire must be installed adjacent to underground nonmetallic gas piping?

• A. Red insulated copper wire
• B. Yellow insulated copper tracer wire
• C. Black insulated aluminum wire
• D. Green insulated copper wire

Answer: (B)

The correct choice involves using yellow insulated copper tracer wire installed adjacent to underground nonmetallic gas piping. This practice is essential for safety and effective identification of gas lines. The yellow color specifically indicates that the wire is meant for gas piping, allowing for clear identification during excavation or maintenance work.

Tracer wire serves as a locating aid, helping utilities and workers to detect the underground piping without the need for expensive specialized equipment. Its presence indicates where gas lines are located, thereby reducing the risk of accidental damage during digging or construction activities. Using yellow insulated wire conforms to industry standards and regulations, ensuring that anyone working in the vicinity of buried utilities can recognize the nature of the piping system, promoting safety and awareness.