broadgage
Senior Member
- Location
- London, England
If the MV/HV conductor is insulated such that it may be touched safely, then I see no harm or danger in useing a clamp on ammeter to measure the current in said conductor.
It would be foolhardy with a bare conductor, and wont work with a shielded conductor.
The meter measures the magnetic field around the conductor to determine the current, it does not "know" what the voltage is in the circuit.
I believe that the 600 volt ratting of the instrument refers to voltage measurements, or to current measurments on bare conductors.
I have certainly measured the current in insulated 11KV conductors useing a standard meter, neither I nor the meter suffered any harm, and I would not consider my actions to have been in any way foolish or dangerous.
It would be foolhardy with a bare conductor, and wont work with a shielded conductor.
The meter measures the magnetic field around the conductor to determine the current, it does not "know" what the voltage is in the circuit.
I believe that the 600 volt ratting of the instrument refers to voltage measurements, or to current measurments on bare conductors.
I have certainly measured the current in insulated 11KV conductors useing a standard meter, neither I nor the meter suffered any harm, and I would not consider my actions to have been in any way foolish or dangerous.