Shindaiwa DG1000MI Portable Generator User Manual


 
- 20 -
:Electrical damages
If the load exceeds the allowable amperage, the overheating may damage the cable.
If the cable is either too long or too small a gauge, there will be greater voltage drop to loads,
which may result in reduced performance in the connected loads, malfunction, or damages.
<Caution>
It is recommended to select the proper gauge and length of cable, with consideration of
the maximum 5% marginal drop only for the rated voltage, between the terminals of
loads and generator via the cables.
Expedient Expression : the voltage drop of cables
3-Phase 3-Wire
1 Length(m)
Voltage Drop (V) = ----- x ----------------- x Current (A) x
58 Gauge(mm
2
)
1-Phase 2-Wire
1 Length(m)
Voltage Drop (V) = ------ x ------------------ x Current (A) x 2
58 Gauge(mm
2
)
Selection of cable
(Example) 220V and Voltage Drop 11V
3-Phase 3-Wire Cap Tire Cable, Single Core (Unit: mm
2
)
Length
Current
50m
or below
75m 100m 125m 150m 200m
50A 8 14 14 22 30 30
100A 14 22 30 38 50 60
200A 38 50 60 80 100 125
300A 50 60 100 100 125 150
(Example) 100V and Voltage Drop 5V
1-Phase 2-Wire Cap Tire Cable, Single Core
(Unit: mm
2
)
Length
Current
50m
or below
75m 100m
10A 5.5 5.5 8
20A 8 14 22
30A 14 22 22
50A 22 30 30
100A 30 50 60
Caution