User`s guide

200 007-4701-003
C: Installing Rack Systems
Figure C-1 30-amp Single-phase Power Receptacle for North American Sites
For international sites, follow these steps to ensure that a single-phase power receptacle is properly
wired:
1. Set the voltmeter to a high AC voltage range.
2. Check the voltage between socket 1 and socket 2 (see Figure C-2). The meter should read
between 200 and 240 VAC.
3. Check the voltage between socket 1 (line) and the ground socket. The meter should read
between 200 and 240 VAC.
Note: The ground pin is slightly larger in diameter than the other two pins.
4. Check the voltage between socket 2 (neutral) and the ground socket. The meter should read
approximately 0 VAC.
5. Check the voltage between the ground socket and an earth-ground location. The meter
should read 0 VAC.
6. Change the voltmeter to a low-resistance setting.
Ground
socket
Socket X
Receptacle
Socket Y
Power cord
connector
Pole Y
Pole X
Ground pole