Gossen MetraWatt SECUTEST PRO - Insulation Resistance Measurement - RINS

GMC-I Messtechnik GmbH 31
8.6 Insulation Resistance Measurement – RINS
1
Connection of 2
nd
test probe for 2-pole measurement with SECUTEST PRO (or instru-
ment with feature H01)
Application, Definition, Measuring Method
Protection Category I Devices
– Measurement type LN(TS) - PE(TS)
– DUT mains plug to test socket
Schematic Diagram
Insulation resistance is measured between short-circuited mains
terminals (L-N) and protective conductor PE.
Wiring Diagram
Protection Category II Devices
with Exposed Conductive Parts
– Measurement type LN(TS) - P1
– DUT mains plug to test socket
– Test probe P1 to P1 terminals
Schematic Diagram
Insulation resistance is measured between short-circuited mains
terminals (L-N) and external conductive parts which can be con-
tacted with test probe P1 and are not connected to the housing.
Wiring Diagram
Protection Category II Devices with Outputs for Safety Extra-Low Voltage
– Measurement type LN(TS) - P1
– DUT mains plug to test socket
– Test probe P1 to P1 terminals
Schematic Diagram
Insulation resistance is measured between short-circuited mains
terminals (L-N) and the short-circuited safety extra-low voltage
outputs which are contacted with probe P1.
Wiring Diagram
Single measurements, rotary switch level: green
Switch Position
Measuring Functions Measurement
Type,
Without Mains
to Test Socket
R
ISO
R
INS
Insulation resistance (PC I/PC II) LN(TS) - PE(TS)
LN(TS) - P1
P1 - P2
1
PE(mains) - P1
PE(TS) - P1
LN(TS) - P1//PE(TS)
U
INS
Tes t voltage
R
ISO