Technical Product Specification

Power Subsystem Intel
®
Server System R1000RP Family TPS
Intel order number: G91532-003 Revision 1.3
24
3.2.5.6 AC Inrush
The peak inrush current must not damage the PSU, or the input fuse must not blow under any
conditions of load, temperature, and input voltage, including repeated, rapid cycling of the power
line. Half cycle peak inrush current, peak repetitive input current, and worse case power factor
must be provided by the vendor to assist with the UPS and line conditioning, sizing, and
selection. No component will be stressed over its maximum specification (I 2·t). This must be
demonstrated through measurements of the critical component specifications.
3.2.5.7 AC Line Leakage Current
The maximum leakage current to ground for each power supply shall be 3.5mA when tested at
240VAC.
3.2.5.8 AC Line Transient Specification
The AC line transient conditions are defined as sag and surge conditions. Sag conditions are
also commonly referred to as “brownout”. Sag conditions are defined as the conditions when the
AC line voltage drops below nominal voltage. Surge conditions are defined as the conditions
when the AC line voltage rises above nominal voltage.
The power supply must meet the requirements under the following AC line sag and surge
conditions.
Table 18. AC Line Sag Transient Performance
AC Line Sag (10sec interval between each sagging)
Duration
Sag
Operating AC Voltage
Line Frequency
Performance Criteria
0 to 1/2 AC
cycle
95%
Nominal AC Voltage ranges
50/60Hz
No loss of function or performance
> 1 AC cycle
>30%
Nominal AC Voltage ranges
50/60Hz
Loss of function acceptable, self
recoverable
Table 19. AC Line Surge Transient Performance
AC Line Surge
Duration
Surge
Operating AC Voltage
Line Frequency
Performance Criteria
Continuous
10%
Nominal AC Voltages
50/60Hz
No loss of function or performance
0 to ½ AC
cycle
30%
Mid-point of nominal AC
Voltages
50/60Hz
No loss of function or performance
3.2.5.9 Susceptibility Requirements
The power supply shall meet the following electrical immunity requirements when connected to
a cage with an external EMI filter which meets the criteria defined in the SSI document EPS
Power Supply Specification. For further information on Intel standards, request a copy of the
Intel
®
Environmental Standards Handbook.