NOTE Generally these services should be detectable using the Radio or Generator modes.
In Power Mode the locator detects power signals. These power signals are present on all current carrying electricity
cables although not all are detectable. These power signals may also flow along other buried conductors such as metal
gas and water pipes.
Limitations of Power Mode
Not all electricity cables can be found using the Power mode. Here are the most important examples of
electricity cables that may not be detectable in the Power mode:
●
Street lighting cables. When the lights are off, no current flows and so no power signal is created.
●
Supplies to buildings or plant using very little or no electricity will not have a detectable power signal.
●
Pot-ended or capped cables. These will never have any current flowing through them but are possibly still live.
●
Disused or abandoned cables.
●
A few high voltage electricity cables. These can be “well balanced”
, electrically and therefore radiate little
or no Power signal.
●
Direct current cables (such as those found on railway systems). These do not create their own Power signals.
●
Cables more than 3 metres deep.
Locator Operating Modes:
Power Mode
WARNING Locators can only detect services radiating a detectable electromagnetic signal.
There may be some services that do not radiate these signals and cannot be located.
WARNING Absence of Power signal does not mean the service is not live.
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