User manual

GMC-I Messtechnik GmbH 11
4.4 Connecting the Device Under Test to the Test Instrument
The DUT must be connected to the test socket (8), or to the jacks or terminals (9 and 10)
which are connected in parallel to the test socket for the measurement of protective conductor
resistance, insulation resistance and equivalent leakage current. Terminal (9) is connected to the
short-circuited phase conductor jacks at the test socket (8), and terminal (10) is
connected to the earthing contact at the test socket (8). Use one of the following test setups,
depending upon the type of device under test.
4.4.1 DUT with protectiv conductor ( Safety Class I) and Mains Plug
4.4.2 Safety Class II DUT
4.4.3 DUT Without Mains Plug or Safety Class III DUT
4.4.4 3-Phase DUT
To test socket
Switch the DUT on!
To housing for measurement of protective conductor resistance
R
SL
I
EA
R
ISO
Test cable, e.g. KS17-4
Switch the DUT on!
To test socket
To expose d metal
parts
I
EA
R
ISO
N
L1
PE
e.g. KS17-4
Switch the DUT on!
To housing for measurement of protective conductor resistance
SCIII
R
SL
I
EA
R
ISO
N
L1
L2
PE
L3
Switch the DUT on!
To housing for measurement of protective conductor resistance
R
SL
I
EA
R
ISO
e.g. KS17-4