LINE LOCATING
ADDITIONAL ADVANCED NON-DESTRUCTIVE TESTING METHODS THAT WE USE: Electromagnetic AC attenuation and ACVG Surveys using Pipeline Current Meter (PCM)
The PCM+ System consists of a portable transmitter and a hand held receiver. The transmitter connected at the CPS station or test post, applies a special signal to the pipeline. The receiver locates this unique signal at distances up to 30km (19 miles) identifying the position and depth of the pipe.
Once the pipe has been located the technician can map the leakage currents along the pipe in magnitude and direction allowing coating defects to be quickly identified.
Once the segment of pipeline where the defect lies has been identified, by using an A-frame, the defect position and depth can be further pinpointed to within 1 meter (3 feet).
