1 Scope
This part of IEC 60060 is applicable to the following on-site test voltages and in service stresses, which
are in relation to IEC 60060‑1:
– direct voltage;
– alternating voltage;
– lightning impulse voltage of aperiodic or oscillating shape;
– switching impulse voltage of aperiodic or oscillating shape.
For special tests the following voltages are used:
– very low frequency voltage;
–
damped alternating voltage .
This standard is applicable to equipment with a highest voltage U m greater than 1 kV. The selection of on-site test voltages, test procedures and test
voltage levels for apparatus, equipment or installations is under the responsibility
of the relevant technical committee.
For special applications, on-site test voltages different from those described in
this standard may be specified by the relevant technical committee.