HP Integrity rx7620 Installation Guide, Seventh Edition - HP Integrity rx7620 - Page 73

Voltage Reference Points for IEC 320 C19 Plug, Table 4-1, Single Phase Voltage Examples

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Cable Connections AC Voltage Check Voltage Range Verification of Receptacle This measures the voltage between L1 and L2, L1 to ground, and L2 to ground. Three separate measurements are performed during this procedure. Refer to Figure 4-4 for voltage reference points when performing the following measurements. Figure 4-4 Voltage Reference Points for IEC 320 C19 Plug IMPORTANT These measurements must be performed for every power cord that plugs into the HP Integrity rx7620 Server. 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 200-240V AC regardless of the geographic region. Step 2. Measure the voltage between L1 and ground. In North America, verify this voltage is between 100-120V AC. In Europe and certain parts of Asia-Pacific, verify this voltage is between 200-240V AC. Step 3. Measure the voltage between L2 and ground. In North America, verify this voltage is between 100-120V AC. In Europe and certain parts of Asia-Pacific, verify this voltage is 0 (zero) V AC. Table 4-1 provides single phase voltage measurement examples dependent on the geographic region where these measurements are taken. Table 4-1 Single Phase Voltage Examples Japan North America Europea L1-L2 210V 208V or 240V 230V L1-GND 105V 120V 230V L2-GND 105V 120V 0V a. In some European countries there may not be a polarization. Chapter 4 73

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Chapter 4
Cable Connections
AC Voltage Check
73
Voltage Range Verification of Receptacle
This measures the voltage between L1 and L2, L1 to ground, and L2 to ground. Three separate
measurements are performed during this procedure. Refer to Figure 4-4 for voltage reference points
when performing the following measurements.
Figure 4-4 Voltage Reference Points for IEC 320 C19 Plug
IMPORTANT
These measurements must be performed for every power cord that plugs into the HP
Integrity rx7620 Server.
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 200–240V AC
regardless of the geographic region.
Step 2.
Measure the voltage between L1 and ground. In North America, verify this voltage is between
100–120V AC. In Europe and certain parts of Asia-Pacific, verify this voltage is between 200–240V
AC.
Step 3.
Measure the voltage between L2 and ground. In North America, verify this voltage is between
100–120V AC. In Europe and certain parts of Asia-Pacific, verify this voltage is 0 (zero) V AC.
Table 4-1 provides single phase voltage measurement examples dependent on the geographic region where
these measurements are taken.
Table 4-1
Single Phase Voltage Examples
Japan
North
America
Europe
a
a. In some European countries there may not be a
polarization.
L1-L2
210V
208V or 240V
230V
L1-GND
105V
120V
230V
L2-GND
105V
120V
0V