Product Manual A

AIR Owner’s Manual 24
Wire Size
All electrical systems lose energy due to resistance in the wires.
• Large wires have less resistance are more costly.
• Resistance losses increase with increasing current. High wind sites will
benet from using a larger size wire to take advantage of the greater power
production potential.
• Conversely, in low wind sites it may not be cost eective to increase the
wire size.
The following wiring sizes provide maximum annual energy losses of 5% or
less for sites with a 12 mph average wind speed (assuming the standard
Rayleigh distribution of wind speeds) which is sucient for most sites.
To determine the size wire, measure the distance from the batteries to your
AIR wind turbine; including tower height. Reference the chart matching your
system voltage and number of turbines and select the wire size.
We recommend these as the minimum wire sizes; for optimal performance
use the largest wires that are practical and aordable. Local, state, and na-
tional electrical codes have precedence over these recommendations and
must be followed to ensure the safety of your system.
Note: Wiring Resistance and Regulation
Depending on your exact system conguration including other charging sources
in your system, wiring resistance may aect the regulation set point of the turbine.
Higher wiring resistance (smaller wires) will tend to lower the voltage at which the
turbine enters regulation and stops charging. The recommended wiring sizes should
provide little eect on the regulation set point, but all installations should be ob-
served over time to ensure that the batteries are charged to the proper voltage.
TIP: Smaller wires will lower the voltage at which the AIR
wind turbine enters regulation and stops charging.
Number of
Turbines:
0-30 ft
(0-9 m)
30 ft-60 ft
(9-18 m)
60 ft-90 ft
(18-27 m)
90 ft-150 ft
(27-46 m)
150 ft-190 ft
(46-58 m)
190 ft-250 ft
(58-76 m)
250 ft-310 ft
(76-95 m)
310 ft-390 ft
(95-119 m)
390 ft-500 ft
(119-152 m)
1
8/10 mm
2
6/16 mm
2
4/24 mm
2
2/35 mm
2
1/50 mm
2
0/50 mm
2
00/90 mm
2
000/90 mm
2
000/90 mm
2
2
6/16 mm
2
4/25 mm
2
1/50 mm
2
00/70 mm
2
000/90 mm
2
0000/120 mm
2
*** *** ***
3
4/25 mm
2
2/35 mm
2
0/50 mm
2
000/90 mm
2
0000/120 mm
2
*** *** *** ***
12 Volt Systems, AWG / Metric Wire Size mm
2
*** If your system requires this length of wire, consider using parallel wires.
Number of
Turbines:
0-30 ft
(0-9 m)
30 ft-60 ft
(9-18 m)
60 ft-90 ft
(18-27 m)
90 ft-150 ft
(27-46 m)
150 ft-190 ft
(46-58 m)
190 ft-250 ft
(58-76 m)
250 ft-310 ft
(76-95 m)
310 ft-390 ft
(95-119 m)
390 ft-500 ft
(119-152 m)
1
14/2.5 mm
2
12/4 mm
2
10/6 mm
2
8/10 mm
2
6/16 mm
2
4/50 mm
2
4/90 mm
2
4/90 mm
2
2/90 mm
2
2
12/4 mm
2
8/10 mm
2
6/16 mm
2
4/25 mm
2
4/25 mm
2
2/35 mm
2
2/35 mm
2
1/50 mm
2
0/50 mm
2
3
10/6 mm
2
8/10 mm
2
6/16 mm
2
4/25 mm
2
2/35 mm
2
2/35 mm
2
1/50 mm
2
0/50 mm
2
00/10 mm
2
24 Volt Systems, AWG / Metric Wire Size mm
2