Skystream Owner’s Manual
3-CMLT-1054 Rev O XCO 1191
Pg. 18
Table 3
Wire Function
Wire Color, IEC
Wire Color, NEC (USA)
Protective Ground
Green with Yellow Stripe
Bare, Green, or Green with Yellow Stripe
Neutral
Blue
White
Line, Single Phase
Brown
Black or Red (2
nd
hot)
Line 1, 3 Phase
Brown
Black
Line 2, 3 Phase
Black
Red
Line 3, 3 Phase
Grey
Blue
Note:
The color of the power wires (originating from the Skystream yaw housing) follow the US
National Electric Code (NEC) and International Electrotechnical Commission (IEC) mandates
and conventions as indicated in Table 3.
North America
Europe
Figure 5
240/208V Yaw wiring
(
USA Wiring
Depicted
, connect Red to Red,
Black to Black)
Figure 6
Single phase wiring.
Caution:
Make sure
AC
power is switched
“OFF”
before proceeding with installation.
Lightning Protection
The Skystream 3.7 turbine is designed to withstand over voltages and surge currents (6kV, 3kA,
8/20
μs) caused by INDIRECT lightning strikes or switching operations according to the Standard for
Interconnecting Distributed Resources with Electric Power Systems (IEEE 1547) . For this protection to
be effective, it is necessary to ensure that over voltages at the Skystream connection terminals will not
be higher than the above values of the surge test.
To provide this over voltage protection against
DIRECT
lightning strikes; a
Type 1 lightning current
arrestor,
that reduces over voltages to a level below 6 kV
but is capable of discharging very high
currents, much larger than those handled by
surge protective devices present inside Skystream is
required.
Note:
Refer to Appendix C for specific instructions on the selection of a Lightning Protection System.
