HP rp8400 Installation Guide, Third Edition - HP rp8400 Server Series - Page 53

Voltage Reference Points for IEC 320 C19 Plug

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AC Power Wiring and Voltage Checks Voltage Range Verification of Receptacle This procedure measures the voltage between L1 and L2, then from L1 to ground and finally from L2 to ground. Three separate measurements will be performed during this procedure. Refer to Figure 4-1 for voltage reference points when performing the following measurements. Figure 4-1Voltage Reference Points for IEC 320 C19 Plug Step 1. Measure the voltage between L1 and L2. This is considered to be a phase to phase measurement in North America. In Europe and certain parts of Asia-Pacific, this measurement is referred to as a phase to neutral measurement. The expected voltage measured should be between 200- 240 volts AC regardless of the geographic region. Step 2. Measure the voltage between L1 and ground. In North America, verify this voltage is between 100 120 volts AC. In Europe and certain parts of Asia-Pacific, verify this voltage is between 200 - 240 volts AC. Step 3. Measure the voltage between L2 and ground. In North America, verify this voltage is between 100 120 volts AC. In Europe and certain parts of Asia-Pacific, verify this voltage is 0 (zero) volts AC. Chapter 4 53

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Chapter 4
AC Power
Wiring and Voltage Checks
53
Voltage Range Verification of Receptacle
This procedure measures the voltage between L1 and L2, then from L1 to ground and finally from
L2 to ground. Three separate measurements will be performed during this procedure. Refer to
Figure 4-1 for voltage reference points when performing the following measurements.
Figure 4-1Voltage Reference Points for IEC 320 C19 Plug
Step 1.
Measure the voltage between L1 and L2. This is considered to be a phase to phase measurement in
North America. In Europe and certain parts of Asia-Pacific, this measurement is referred to as a
phase to neutral measurement. The expected voltage measured should be between 200- 240 volts
AC regardless of the geographic region.
Step 2.
Measure the voltage between L1 and ground. In North America, verify this voltage is between 100 -
120 volts AC. In Europe and certain parts of Asia-Pacific, verify this voltage is between 200 - 240
volts AC.
Step 3.
Measure the voltage between L2 and ground. In North America, verify this voltage is between 100 -
120 volts AC. In Europe and certain parts of Asia-Pacific, verify this voltage is 0 (zero) volts AC.