Connection and disconnection of large conductive parts during live working at HV and VHV

During live working at high and very voltage, it may be necessary to connect or disconnect parts of the network, but also large conducting parts. To carry out these operations, it is necessary to control: values of current passing to the place where connection or disconnection is made, particularly if you want to carry out operations using the bare hand working method,; the maximum length of the discharge arc to guarantee LW distances,; but also another fundamental parameter, the connection or disconnection speed, particularly if you want to carry out these operations manually without using an appropriate device.