21
Figure 11: All lamps in the yellow area light up.
In addition,
L3
lights up when the button
T
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.
Earth wire resistance is still permissible
20
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.
Using the switch
S1
, adjust the nominal fault current to the
required value; press the button
T
. The nominal fault current
flows 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
T
once every 10 seconds
only.
No fault determined
Figure 10: All lamps in the yellow area light up. In addition, the
lamp
L3
lights up when the button
T
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
Schuki 2 22.01.2004 15:49 Uhr Seite 20