EML (Electromagnetic Locating)
Technical Explanation
Electromagnetic Location (EML) involves applying a radio signal to metallic pipes or cables (via a transmitter) and using a handheld receiver to trace the signal’s path underground. It reliably finds conductive utilities by detecting the electromagnetic fields they emit. This method is also known as cable locating or radio detection.
Main requirements
Required whenever buried metallic utilities (power lines, telecom cables, metal pipes) need pinpointing. Needs access points to connect a signal transmitter (or existing live signal on lines). Best for conductive lines – it won’t locate non-metallic pipes unless they have tracer wires.