Chauvin Arnoux C.A 6116, User Manual

Page: 38 / 96

38
If possible, first disconnect all loads from the network on which you test the RCD. This prevents interference with the test by any
leakage currents due to these loads.
If you have a current clamp, you can measure the leakage current (see §3.10) at the RCD and so make allowance for it during
the test.
30 mA
„
Choice of the nominal current of the residual current device I
D
N
: VAR. (variable: the user programs a value be-
tween 6 and 999 mA), 10 mA, 30 mA, 100 mA, 300 mA, 500 mA, 650 mA, or 1000 mA.
„
Choice of type of residual current device: STD (standard),
S
or
G
(the S type is tested with a current of 2 I
D
N
as default).
„
Choice of the form of the test signal:
Before starting the measurement, you can configure it by modifying the parameters displayed:
signal that starts with a positive alternation,
signal that starts with a negative alternation,
signal containing only positive alternations,
signal containing only negative alternations.
Rb
R
N
R
L L
N
30 mA 300 mA
Ra
PE
Particular case:
To test a residual current device located down-
stream of another residual current device having a
smaller nominal current, you must use the measur-
ing cable terminated by 3 leads and make the con-
nections shown opposite (upstream-downstream
method).
Rb
R
N
R
L L
N
Ra
> 25 m
PE
To make a more accurate measurement of the fault
voltage, plant the auxiliary rod at a distance of more
than 25 metres from the earth electrode and connect it
to the
(R
A
S
EL
) terminal of the device. The symbol
is then displayed.
RCD
Rb
R
N
R
L L
N
PE
Ra
RCD
RCD RCD
red green blue