83
A
L1
L3
L2
N
L1
L3
L2
N
a
b
c
L1
L3
L2
N
a
b
c
Leakage Current Tester 92-4A, -4D, -4E, -4G
BASIC TEST MODES
VI.x Basic test modes 3~ UIT's
Measuring of LC current according EN60335, EN60598, EN 600650
The measuring of the LC current is carried out according the network
shown below. The LC current have to observe the values predefined in the
EN-standard. A detailed description of the prerequisites for the measuring
contains the EN-standards.
Circuit diagram:
instrument
Protective earth con-
ductor terminal
Item under test
Transformer
touchable part
non touchable part
basic insulation
extra insulation
double insulation
Measurement
circuit according
EN-standard
Illustr. VI.10: Measuring network of LC-currents for "safety class II"
UIT's.
Illustr. VI.11: Measuring network of LC-currents for "safety class I"
UIT's.
Measurement
circuit according
EN- standard
Illustr. VI.12:
Measuring network of LC-currents for 3~ UIT's
