when measuring insulation resistance between one of the cable conductors and the cable shield,
the effect of surface resistances (important in difficult weather conditions) is eliminated by con-
necting a piece of metal foil insulating the tested conductor with G socket of the meter;
The same shall apply when measuring the resistance between two conductors of the cable, attaching
to G terminal other conductors that do not take part in the measurement.
at the measurement of insulation resistance of a high voltage circuit breaker, G socket of the meter
should be connected to the terminals’ insulators of the breaker;
3.1.3 Measurements with increasing voltage - SV
In this mode the meter performs a series of 5 measurements with increasing voltage; the voltage
change depend on the set maximum voltage:
- 1 kV: 200 V, 400 V, 600 V, 800 V and 1000 V,
- 2.5 kV: 500 V, 1 kV, 1.5 kV, 2 kV and 2.5 kV,
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