| 摘要 |
A method for detecting the location of a gas leak (22) in a buried utility gas pipe (12) by measuring the presence of a gas (18) below or above the ground surface (14) above the pipe (12) is improved by injecting a tracer gas (18) into a utility gas (26) guided through the pipe during a mode of normal operation of the pipe and by using a gas detector (28) having a higher sensitivity to the tracer gas (18) than to the utility gas (26) for pin-pointing the leak position (22). |
