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MI 2166 Demonstration board
Electrical installations
3. Front panel description
MI 2166
DEMONSTRATION BOARD
Electrical Installations
1
0
C 10A
230V / 50Hz / 10W
JUMP
OK
Input protection circuit
Not intended for demonstration
purposes!
AUX
230 V / 3A
TN
4W
3W
H
H
S
S+d
ES
S0
E
S-d
TT
TP2
E/ES
TP1
PE
TP3
Do not connect external voltage!
For measurement purposes only!
a
RE1=4.7 Ω
RE =95 Ω / 2000 Ω
RE2 =6.8 Ω
GAS
Fault
a
2 m / 100 Ω m
5 m / 470 Ω m
8 m / 2000 Ω m
RE/ZLOOP
RCD
ZLINE
RPE
RISO
OK
4. Faults simulation
The following faults on electrical installation can be simulated:
Switch
Parameter
Earth resistance RE
RCD trip-out
Line impedance between L and
ZLINE
N terminals of mains socket
Resistance of protective
RPE
conductor between PE collector
and boiler’s PE terminal
Insulation resistance between L
RISO
terminal of mains socket and PE
collector
*Input impedance (at wall socket)
RE/ZLOOP
RCD1
6
Approx.
Approx. parameter
parameter value
value without fault
with fault
RE = 95 W
RE = 2000 W
tΔ < 300 ms
No trip-out
ZLINE = Zx* + 0.2 Ω
ZLINE = Zx* + 2.4 Ω
RPE = 0.0 Ω
RPE = 4.7 Ω
RISO > 200 MΩ
RISO = 0.44 MΩ