Chapter 2.1.1. – 2
EATON CORPORATION
xxxxx+xxxx-xxxxEN
Residual Current Devices
Tripping Characteristics (IEC/EN 61008)
§ 6.1.1 of ÖVE/ÖNORM E 8001-1/A1
deals with
additional pro-
tection
and provides essentially the following:
In circuits with
sockets up to 16 A
with fault current/residual current
protection by protective earthing, protective multiple earthing or
residual current devices (RCDs), additional residual current protection
devices with a rated tripping current of
0.03 A
must be installed.
This means when using RCDs for fault current/residual current
protection two RCDs must be connected in series.
Testing:
RCDs with tripping time delay (Types -G and -S) may be function test-
ed with conventional testing equipment which must be set according
to the instructions for operation of the testing device. Due to reasons
inherent in the measuring process, the tripping time determined in
this way may be longer than expected in accordance with the specifi-
cations of the manufacturer of the measuring instrument.
However, the device is ok if the result of measurement is within the
time range specified by the manufacturer of the measuring instru-
ment.
Tripping characteristics, tripping time range and selectivity of instantaneous,
surge current-proof "G" and surge current-proof - selective "S" residual cur-
rent devices.
T
ripping time t
Tripping time range type S
Residual tripping current
surge current.-
proof - selective
surge current-
proof
conditionally
surge current-
proof
Tripping time range type G
Tripping time range limit values
Tripping time range non-delayed
Area of unwanted tripping
