Figure 1-1 30-Amp Single-Phase Power Receptacle For North American Sites - Silicon Graphics Origin 350 User Manual

1: Installation and Operation
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6. Change the voltmeter to a low-resistance setting.
7. Measure between the ground socket and an appropriate earth-ground location and
ensure that resistance is less than 1 ohm.
8. Repeat steps 1 through 7 for any additional single-phase power receptacles.
Caution: If a voltage reading is incorrect, or if the resistance measured in step 7 is more
than 1 ohm, contact a site-approved electrician. Do not proceed with the installation.
Ground pole
Pole X
Ground socket
Figure 1-1 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 1-2). The meter should
read between 200 and 240 VAC.
Pole Y
Power cord
connector
Socket X
Socket Y
Receptacle
007-4566-001