1. Check that the receptacle provided is correct (see Section 1.5).
2. Measure voltages between all three phases, each phase to neutral, and
ground to neutral (see Figure 6–3).
Voltage
Measurement 208V Nominal 380V Nominal 416V Nominal
Phase-to-phase 180–220V 331–407V 360–443V
Phase-to-neutral 104–128V 190–235V 208–256V
Ground-to-neutral 1V maximum 1V maximum 1V maximum
3. Plug the power cord into the receptacle.
Powering Up the System 6–7
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