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Chapter 12 Helpful information
➢ Phases or hot lines: X, Y, Z
➢ Ground: G
Common 3-phase ∆ voltages V
North America
International
PE – Protective Earth
In most European countries Protective Earth (PE) is in use instead of Earth Ground for
grounding. PE is a fail safe circuitry with the sole purpose to protect persons against potential
electric shock. The wire colour is yellow/green.
Abbreviations
IEC - International Electrotechnical Commission (EU, UK and other nations)
NEC - NEC (National Electrical Code (US & Canada)
6U Rack or Tower UPS RT8kVA and RT11kVA IUOMG
(V
)
L-L
AC
208 or 240
230
217
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