HP rp7440 Installation Guide, Fourth Edition - HP Integrity rx7640 and HP 9000 - Page 54

Verifying the Safety Ground (Single Power Source)

Get HP rp7440 PDF manuals and user guides View all HP rp7440 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 54 highlights

Figure 2-21 Voltage Reference Points for IEC 320 C19 Plug IMPORTANT: Perform these measurements for every power cord that plugs into the server. 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 should be between 200-240 V AC regardless of the geographic region. 2. Measure the voltage between L1 and ground. In North America, verify that this voltage is between 100-120 V AC. In Europe and certain parts of Asia-Pacific, verify that this voltage is between 200-240 V AC. 3. Measure the voltage between L2 and ground. In North America, verify that this voltage is between 100-120 VAC. In Europe and certain parts of Asia-Pacific, verify that this voltage is 0 (zero) V AC. Table 2-4 provides single phase voltage measurement examples dependent on the geographic region where these measurements are taken. Table 2-4 Single Phase Voltage Examples Japan North America Europe1 L1-L2 210V 208V or 240V 230V L1-GND 105V 120V 230V L2-GND 105V 120V 0V 1 In some European countries there may not be a polarization. Verifying the Safety Ground (Single Power Source) Use this procedure to measure the voltage level between A0 and A1. It also verifies the voltage level between B0 and B1. Take measurements between ground pins. Refer to Figure 2-22 for ground reference points when performing these measurements. 54 Installing the Server

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
Figure 2-21 Voltage Reference Points for IEC 320 C19 Plug
IMPORTANT:
Perform these measurements for every power cord that plugs into the server.
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 should be between
200–240 V AC regardless of the geographic region.
2.
Measure the voltage between L1 and ground. In North America, verify that this voltage is
between 100–120 V AC. In Europe and certain parts of Asia-Pacific, verify that this voltage
is between 200–240 V AC.
3.
Measure the voltage between L2 and ground. In North America, verify that this voltage is
between 100–120 VAC. In Europe and certain parts of Asia-Pacific, verify that this voltage
is 0 (zero) V AC.
Table 2-4
provides single phase voltage measurement examples dependent on the geographic
region where these measurements are taken.
Table 2-4 Single Phase Voltage Examples
Europe
1
North America
Japan
230V
208V or 240V
210V
L1-L2
230V
120V
105V
L1-GND
0V
120V
105V
L2-GND
1
In some European countries there may not be a polarization.
Verifying the Safety Ground (Single Power Source)
Use this procedure to measure the voltage level between A0 and A1. It also verifies the voltage
level between B0 and B1. Take measurements between ground pins. Refer to
Figure 2-22
for
ground reference points when performing these measurements.
54
Installing the Server