Operation Manual

MI 3121H Smartec 2,5 kV Insulation / Continuity Insulation resistance
21
5 Measurements
5.1 Insulation resistance
5.1.1 Insulation resistance measuring procedure
Insulation resistance measurement is performed in order to assure safety against electric
shock through insulation. It is covered by the EN 61557-2 standard. Typical applications
are:
Insulation resistance between conductors of installation,
Insulation resistance of non-conductive rooms (walls and floors),
Insulation resistance of ground cables,
Resistance of semi-conductive (antistatic) floors.
See chapter 4.1 Function selection for instructions on
key functionality.
Figure 5.1: Insulation resistance
Test parameters for insulation resistance measurement
Uiso Test voltage [100 V, 250 V, 500 V, 1000 V, 2.5 kV]
Limit
Minimum insulation resistance [OFF, 0.01 MΩ ÷ 200 MΩ]