Testboy Schuki 1 Mode D'emploi page 8

Schuki 1 22.01.2004 15:02 Uhr Seite 14
Phase and protective earth have been
reversed
Figure 7: Lamp L2 only lights up. Touching the touch electrode
has no effect.
This fault configuration is indicated when the testing device
has been incorrectly inserted.
The phase conductor is connected to the earthing contact!
No protective earth, phase conductor con-
nected to earthing contact
Figure 8: The lamps N, L1 and L2 light up. GL1 lights up when
the touch electrode is touched.
This is a typical fault in older installations with classic 'protec-
tive multiple earthing', if the phase and protective earth con-
ductors have been reversed.
The phase conductor is connected to the earthing contact!
Open neutral, phase conductor connected to
earthing contact
Figure 9: The lamps L1, PE and N light up. Touching the touch
electrode has no effect.
This is a typical fault in older installations with classic "protec-
tive multiple earthing", if the phase and protective earth con-
ductors have been reversed.
The phase conductor is connected to the earthing contact!
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Testing the ELCB protected circuit
Insert the testing device into a socket outlet and test the cir-
cuitry. If no fault is indicated, you can begin testing the ELCB
function.
Briefly press the button. A nominal fault current of max. 30 mA
flows into the protective earth for 200 ms.
Note:
y This test can also be carried out in systems not fitted with
an ELCB.
y It is permitted to press the button once every 10 seconds
only.
No fault determined
Figure 10: All lamps in the middle row light up. In addition, the
lamp L3 lights up when the button is pressed. The lamps go
out when the ELCB is tripped.
Please refer to the first fault indication FI, if the ELCB is not
tripped.
R permissible
Earth wire resistance is still permissible
Figure 11: All lamps in the middle row light up.
In addition, L3 lights up when the button is pressed; simulta-
neously the PE lamp goes out.
The lamps go out when the ELCB is tripped.
The protective earth conductor has an increased but permissi-
ble resistance.
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