
GMC-I Messtechnik GmbH
67
8.11
Testing Extension Cords for Correct Function – EL1
* No checking for reversed polarity takes place when the EL1 adapter is
used.
Attention!
!
This function permits an evaluation of the continuity of
the active conductors L(1, 2, 3) and N of an extension
cord. The PE conductor isn’t tested in this case.
Measurement at Single-Phase Extension Cords with EL1
Schematic Diagram
Wiring Diagram
Measurement at Single and 3-Phase Extension Cords with VL2E
Schematic Diagram
Wiring Diagram
Measurement at Single and 3-Phase Extension Cords with AT3-IIIE
Schematic Diagram
Wiring Diagram
Single measurements,
rotary switch level: green
Switch
Po
si
ti
o
n
Measuring Functions
Measurement
Type
Without Mains
to Test Socket
EL1
Extension cord test
with adapter for single or 3-phase extension cords for
testing for:
– Continuity
– Short-circuit
– Incorrect polarity (reversed wires *)
EL1 adapter
AT3-IIIE adapter
VL2E adapter
Testing for
Continuity
L(1/2/3), N
Short-circuiting
between:
L(1/2/3), N
Polarity rever-
sal / clockwise
phase sequence
EL1 adapter
X
X
—
VL2E adapter
X
X
X
AT3-IIIE adapter
X
X
X
EL1
Содержание SECULIFE ST PRO
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