CPC A01B 1/02 (2013.01) [A01B 76/00 (2013.01); G01V 3/08 (2013.01); G01V 3/088 (2013.01)] | 26 Claims |
1. An EMF detecting safety shovel comprising:
a handle;
a blade at a working end of the handle;
EMF detection circuitry comprising:
an antenna formed by the blade or being attached to the blade;
an EMF detector circuit operably coupled to the antenna; and
an indicator operably coupled to the EMF detector circuit, wherein:
in use, the indicator provides an indication of the detection of EMF of a subsurface power cable;
wherein the EMF detector circuit comprises a level sensor configured for discriminating between low and high voltages of the subsurface power cable;
the level sensor is operably coupled to the indicator to provide low and high voltage indications accordingly;
the level sensor is configured to discriminate between low voltages being less than approximately 1000 V and high voltages being greater than approximately 1000 V; and
an edge of the blade comprises a cutout for the partial receipt of the power cable therein for discriminating between the low and high voltages at a set distance and location with respect to the EMF detector circuit.
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