Table of Contents
Advertisement
Chapter 12 Helpful information
Single-, Split-, and 3-Phase information
Single Phase System
Background
A single-phase AC power system consists of:
The phase wire (also known as Line or Live) and neutral wire
•
The phase wire carries the current to the load
•
The neutral wire provides the return path of the current
•
Voltage and current takes the shape of a sinusoidal wave at a frequency of 60 Hz (USA)
•
or 50 Hz
Wiring Colour Codes
NEC for US and Canada
Single Phase 120 V
Wire function
Phase or Line
Neutral
Earth Ground
212
Wire Colours
AC
Wire Colour
Black
White
Green
Yellow
6U Rack or Tower UPS RT8kVA and RT11kVA IUOMG
IEC for Europe
Single Phase 230 V
Wire Colour
Brown
Blue
Green
Wire Colours
AC
Yellow
Advertisement
Table of Contents
