Live Power & HV Cable Detection Across BC
Detect energised power and high-voltage cables before excavation, drilling or coring
About This Service
Striking a live power cable is among the most dangerous outcomes of any excavation or concrete cut. Electromagnetic cable detection identifies energised power and high-voltage (HV) cables by the field they radiate at the 60 Hz power frequency — often without any need to connect a transmitter. We locate primary and secondary power, HV feeders, and live conductors in walls, slabs and the ground, defining safe exclusion zones before any tool touches the surface.
How It Works
- 1
The receiver is set to 'power mode', detecting the 60 Hz field radiated by any current-carrying conductor.
- 2
Live cables are traced by their field strength; the technician maps the route and depth.
- 3
For unenergised or balanced cables, a transmitter applies a traceable signal via connection or induction.
- 4
In concrete, EM and GPR are combined to confirm conductor position before coring or cutting.
- 5
Exclusion zones are marked around every detected conductor for the drill, saw or excavation crew.
When It's Used
What You Receive
- Marked route and exclusion zones for every detected conductor
- Depth estimates at intervals along the cable
- Distinction between live and traceable-but-dead conductors
- Combined EM + GPR confirmation in concrete applications
- Written advisory on safe dig / cut / core strategy
Power Cable Detection — BC Locations
Available across all of British Columbia.
EM Scan & Line Locating by BC City
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Telecom & Fibre Locating
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Sonde & Drain Locating
Utility Depth Measurement & Cable Fault Location
Depth & Fault Location
Pre-Excavation EM Utility Survey
Pre-Excavation Survey
Need non-metallic pipe, concrete or void imaging too? Explore GPR scanning →
Frequently asked questions
Can you detect a cable that isn't carrying current?
A de-energised cable radiates no 60 Hz field, so we apply a transmitter signal by direct connection or induction to trace it. A balanced or shielded cable may also require a transmitter. We always confirm by more than one method before declaring a zone clear.
Is EM detection a guarantee the area is safe to dig?
No locate is an absolute guarantee. EM detection dramatically reduces risk by mapping detectable conductors, but we always recommend hand-digging or hydrovac potholing in the immediate exclusion zone to physically confirm before mechanical excavation.
Can you find live wires inside a concrete wall before drilling?
Yes — combined EM (power mode) and GPR scanning locate energised conductors and conduit in walls and slabs, allowing us to mark safe drill points away from every detected hazard.
Power Cable Detection Across British Columbia
LeakInspections.ca is a division of Anyleak.ca and part of the Leak.ca family — BC's subsurface locating and leak detection specialists since 1999.