The C.A 6474 supplements the C.A 6472 earthing and ground resistance meter for measurements on high-voltage pylons.
The C.A 6474 can be used in conjunction with the C.A 6472, the following measurements can be carried out:
- Total earthing resistance of the poles
- Earthing resistance of the individual pole bases
- Total impedance of the line
- Connection quality of the earth wire
- Active measurement (current via C.A 6472)
- Passive measurement (use of interference voltages)