TESTBOY TV 450
Settings
26
Maximum test times related to selected test current for general (non-delayed) RCD
Standard
½
×
I
Δ
N
I
Δ
N
2
×
I
Δ
N
5
×
I
Δ
N
EN 61008 / EN 61009
300 ms
300 ms
150 ms
40 ms
EN 60364-4-41
1000 ms
1000 ms
150 ms
40 ms
BS 7671
2000 ms
300 ms
150 ms
40 ms
AS/NZ (I, II, III)
1000 ms
1000 ms
150 ms
40 ms
Maximum test times related to selected test current for selective (time-delayed) RCD
Standard
½
×
I
Δ
N
I
Δ
N
2
×
I
Δ
N
5
×
I
Δ
N
EN 61008 / EN 61009
500 ms
500 ms
200 ms
150 ms
EN 60364-4-41
1000 ms
1000 ms
200 ms
150 ms
BS 7671
2000 ms
500 ms
200 ms
150 ms
AS/NZ (IV)
1000 ms
1000 ms
200 ms
150 ms
4.2.6 Isc factor
In this menu the Isc factor for calculation of
short circuit current in Z-LINE and Z-LOOP
measurements can be set.
Figure 4.7: Selection of Isc factor
Keys:
UP / DOWN
Sets Isc value.
TEST
Confirms Isc value.
Function selectors
Exits back to main function menu.
Short circuit current Isc in the supply system is important for selection or verification of
protective circuit breakers (fuses, over-current breaking devices, RCDs).
The default value of Isc factor (ksc) is 1.00. The value should be set according to local
regulative.
Range for adjustment of the Isc factor is 0.20
÷
3.00.
4.2.7 Commander support
The support for remote commanders can be
switched On/ Off in this menu.
Figure 4.8: Selection of commander
support
