We designed a smart energy meter to measure 3-phase metering . Here we are using the split core C.T's with the output of 0.333V. Our firmware development is completed and is in testing now.
We are in the compliance stage now, the lab is not accepting the split core C.T's because the magnetic core is exposed and there will be chances of electric shock (when touched) to the user while installing and if these is any short happens in the circuit.
Is this the real case?
The lab is suggesting to use closed or round core C.T or need to provide an isolation in the design between the C.T and the ADE9000 IC connection.
Please suggest how to proceed and how to overcome this issue.